"Beef and mutton can’t be eaten, pork fat can’t be eaten, meat oil can’t be eaten, don’t mention seafood, fish, shrimp and shellfish, even tomatoes can’t be eaten! Like floss, as long as you eat your mouth, you will get edema, and your whole face will get eczema and lumps. " A baby under three years old in Changzhou has so many allergens that he is allergic to rice. He can only eat noodles, milk and a small amount of chicken breast or lean meat every day. Parents such as fruits and vegetables dare not feed their babies casually, for fear that they will be allergic when they eat them. It is really miserable.

　　Correspondent Sun Zhenjiang Liu Yuyun Yangzi Evening News/Yangyan reporter Zhang Bin

　　Drug allergy is severe, and food allergy is also exaggerated.

　　Not long ago, Lele, a baby under three years old in Changzhou, was admitted to Yanghu Hospital of Changzhou Second People’s Hospital because of pneumonia caused by respiratory infection. Speaking of Lele, his mother was worried sick. Many hospitals are afraid to treat Lele, because there are too many allergens, severe drug allergies and amazing food allergies.

　　"After we admitted Lele, we found that many antibiotics such as cephalosporin and penicillin for the treatment of respiratory infections could not be used. Some antibiotics can be used at first, but they can’t be used after a few days! Therefore, pneumonia is also very difficult to treat, and doctors have tried many ways to cure him. " Huang Zhiying, deputy chief physician of the Pediatrics Department of Changzhou Second Hospital, told the reporter that in addition to the severe drug allergy, Lele’s food allergy is also exaggerated, and rice, fruits and vegetables, meat oil, fish and shrimp, seafood, beef and mutton cannot be eaten. Basically, every day is milk, noodles and some chicken breast. Only dare to eat chicken breast among chicken, even dare not let Lele eat chicken leg meat, for fear that meat oil will make Lele allergic.

　　"It’s better to say what can be eaten faster than what can’t be eaten!" Lele’s mother said with a wry smile that this is not the first time Lele has been hospitalized because of allergies. According to Lele’s mother, they found that the child was allergic when he started eating complementary food at the age of 6 months. At that time, rice flour was added to the complementary food, and within an hour, he would have diarrhea, and then he kept pulling blood in his stool. "At that time, we were all scared! At first, I thought it was lactose intolerance. Later, after examination, I realized that Lele was allergic to rice! "

　　Knowing that Lele was allergic to rice, my mother thought it was not a particularly serious problem at first, and thought it would be good not to give him rice products in the future. But parents never expected that this was just the beginning of food allergy. As children grow up and come into contact with more and more kinds of food, parents find that Lele can’t eat more and more things! "You can’t eat too much meat, even tomatoes!" Lele’s mother said that the baby’s allergen is very strange. He can eat boiled lean meat, but he can’t eat pork floss, which is also a refined pork product. As long as the pork floss is eaten, it will become edema and eczema and lumps will appear on his whole face.

　　Not only parents are anxious, but also doctors have a headache.

　　"We have treated many children with food allergies, but most of them are sensitive to a relatively single variety. For example, allergies to protein, peanut nuts or seafood and shellfish are very common. It’s really the first time I’ve been a doctor for so many years like Lele! " Huang Zhiying told Yangzi Evening News that children’s food allergy is a common pathological reaction of human body to edible antigen. Food allergy usually causes itching, urticaria and various respiratory or intestinal problems within a few minutes to 2 hours after eating. But like Lele, there are so many drug allergens and so many food allergens that it is the first time for her to see them. In this case, Lele is not only a headache for parents, but also for doctors. "We all suggest that children should carry an adrenaline pen with them in the future to avoid accidents when anaphylactic shock occurs."

　　It is understood that allergic diseases are one of the most common chronic diseases in the world. Food allergy refers to the abnormal immune response to food after it enters the human body, which leads to the disorder of physiological function or tissue damage, and then leads to a series of clinical symptoms. Common food allergens are: milk, eggs, peanuts, soybeans, wheat, nuts, fish, shrimp, crabs, shellfish and so on. The prevalence of food allergy in children is higher than that in adults because of poor gastrointestinal barrier, low activity of some digestive enzymes, low gastric acidity and immature immune system. Allergic diseases have a natural course, and some infants’ allergies can improve themselves after 3-6 years old. The most common route of food allergy is ingestion, but there are also food allergies caused by contact and inhalation. The clinical manifestations of food allergy include oral symptoms (swelling of lips, etc.), respiratory symptoms (dyspnea, etc.), digestive tract symptoms (diarrhea, bloody stool, etc.), and skin symptoms (eczema, dermatitis, etc.).

　　It is related to heredity, constitution, etc., and may be relieved when you grow up.

　　At present, there is no oral desensitization treatment for food allergy in China. Therefore, patients with definite allergic food should abstain from this food and all foods containing this food ingredient.

　　Dr. Huang Zhiying told the Yangzi Evening News reporter that food allergies have a certain relationship with family inheritance and children’s physique. Food allergy is not contagious, but it has a certain genetic tendency. If you have a family history of allergies, you should start to prevent children from allergies from pregnancy. Like Lele’s sister, there are many food allergens, but not as serious as Lele.

　　According to statistics, about 10% people will have food allergies, among which children are more prone to allergic reactions because the digestive tract and immune system are still developing. Doctors remind that severe food allergies may cause dyspnea, anaphylactic shock and other symptoms. Once you find allergies, you should seek medical advice in time, confirm the foods that cause allergic reactions, and try to avoid contact again. In addition, some childhood allergies will gradually ease with age, so parents don’t have to worry too much.

　　These allergies are also rare.

　　A one-and-a-half-year-old girl is allergic to water.

　　I can’t even cry and sweat.

　　It is almost inevitable for children to cry, sweat and take a bath every day. However, Ivy Angermann, an 18-month-old girl in Minnesota, USA, must try to avoid all this. The reason is that she will be allergic to water.

　　Tears, sweating and bathing will make her skin red, swollen and painful. Allergic symptoms of little girls are very rare. The British Metropolis Daily reported that there are only about 50 such cases in the world.

　　At first, Mr. and Mrs. Angermann found that the baby’s skin would be swollen and blistered as soon as he took a bath. They thought there was something wrong with the bath lotion, so they changed many brands of bath products, but the problem still existed, and then changed the water, and the situation was still the same.

　　In October 2017, Ivy was diagnosed as allergic to water and could not take a bath, play with water, swim, get wet in the rain, shed tears or sweat. But for such a young child, crying is common. Ivy’s mother, britta Ni, said, "I had to teach her not to cry, to hide her tears or to express her emotions in another way, but it was so difficult that it broke my heart."

　　The couple can only bathe Ivy once a week now. It’s like taking a bath with bleach. You can’t dry it with a towel after washing, because it will break the blisters and you can only wait for it to dry naturally. Ivy will also take drugs to reduce allergic reactions.

　　Britta Ni is also worried that what should Ivy do if she is splashed with water by her classmates after school? What should I do if I am sad because of my illness? What is even more worrying is: I don’t know how to develop my illness in the future. Will it get so serious that I can’t drink water? She said: "Life is hard for the whole family, but we live in the present every day and think about what is best for Ivy."

　　Boys are allergic to the sun

　　Going out to dress is like an astronaut.

　　According to the Daily Mail, last year in California, a 7-year-old boy named Oliver Kay was allergic to the sun because of a rare genetic disease. Every time he went out, he needed to wear complicated anti-ultraviolet safety equipment.

　　Oliver was diagnosed with xeroderma pigmentosum when he was 18 months old. The probability of this disease is nearly one in a million, which means that his skin can’t repair the damage caused by sunlight and other ultraviolet rays.

　　Oliver’s risk of skin cancer is 1000 times that of ordinary people, so his family must take extreme measures to protect him. His mother sewed a layer of anti-ultraviolet fabric on Oliver’s clothes and wrapped him with a thick plastic sun visor and anti-ultraviolet gloves. This equipment made him look like an astronaut. The mother applies strong sunscreen to her son every few hours, and their homes and car windows are equipped with ultraviolet protective films.

　　Although taking care of Oliver’s daily life makes his family exhausted, his family still looks forward to getting rid of the restrictive equipment and playing happily outdoors with his three brothers and sisters in a few hours after sunset. People around him affectionately call him "the son of the moon".

　　Oliver suffers from chronic esophagitis, esophagitis and gastroparesis at the same time, which makes him unable to participate in outdoor activities.

　　This fatal disease didn’t stop Oliver from becoming a happy child. He also had his own hobbies, jazz and ballet.

　　Such strict protection measures still can’t prevent Oliver’s skin from turning black and growing too many freckles, so his mother decided to take Oliver to start stem cell therapy. (comprehensive beiqing)

　　On the morning of November 29th, shortly before the opening ceremony of the grand celebration of the 130th anniversary of Wuhan University, a simple donation signing ceremony was quietly held in a small conference room in the administrative building of the university.

　　Lei Jun, an alumnus of the Computer Department of Wuhan University in 1987 and founder, chairman and CEO of Xiaomi Group, donated 1.3 billion yuan to his alma mater. This donation has set a new record for the largest single donation since the establishment of Wuhan University, and it is also the largest personal cash donation received by alumni in universities across the country. This triggered a hot discussion about "other people’s alumni" on the Internet.

　　As an outstanding alumnus of Wuhan University, Lei Jun’s story of studying and starting a business has always been talked about by Wuhan University students. During his study at Wu Da University, Lei Jun completed all the credits required for four years in the university in just two years. Shortly after graduation, he joined Beijing Jinshan Software Co., Ltd. and led the company to grow and develop. In April 2010, Lei Jun founded Xiaomi Company, and now Xiaomi is the top three smartphone manufacturers in the world.

　　Lei Jun has said more than once that Luojiashan is the place where dreams are started, and the professional knowledge and learning ability he learned at Wuhan University have laid a good foundation for his later entrepreneurship. In order to be grateful and give back to his alma mater, in 1997, just six years after graduation, Lei Jun began to donate to his alma mater and set up a "Tengfei Scholarship" at Wuhan University.

　　Since then, Lei Jun has donated a number of donation projects to his alma mater, including the establishment of the "Lei Jun Scholarship" and "Lei Jun Science and Technology Building" of Wuhan University, with a total amount of 130 million yuan. On October 20, 2016, Lei Jun donated money to support Wuhan University to build an artificial intelligence teaching and research building.

　　At the 9th Alumni Forum of Wuhan University that afternoon, Lei Jun told his schoolmates the behind-the-scenes story of donating 1.3 billion yuan to his alma mater.

　　"I have always had an unforgettable love for my alma mater. The small achievements I made today are inseparable from the cultivation of my alma mater." Lei Jun said that it was Wu Da who shaped him, let him find his dream, learned the method of learning, and gave him the most precious wealth in his life.

　　Lei Jun is especially grateful to his alma mater for his tolerance. He has always encouraged students to explore and innovate in technology. Coupled with the free and relaxed environment and laboratory conditions, he has the courage to set no limits.

　　Lei Jun comes from an ordinary family in Xiantao, Hubei. More than 30 years ago, when he was studying at Wuhan University, he studied hard and supported himself by scholarships. He once won the highest scholarship set up by an entrepreneur at school — — 2000 yuan, which is equivalent to the salary of ordinary people for several years at that time. He silently vowed in his heart that "it will be returned ten times, one hundred times and ten thousand times in the future."

　　Lei Jun also had a wish. Because at that time, the best teaching building in Wuhan University — — I feel very happy in class in Shaw Building, so he made a wish to donate a building to Wu Da. Now, these two wishes have come true.

　　Lei Jun said that in the eyes of him and many alumni, Wu Da is the best university in the world. In order to make Wu Da better and better, everyone can give back to his alma mater with practical actions. In particular, he said that he never advocated comparing donations. Many alumni actively donated money to celebrate the 130th anniversary of Wu Da University. Every donation is the love of alumni for their alma mater, and the weight is the same.

　　According to reports, Lei Jun’s donation mainly focuses on three directions: supporting the basic research of six disciplines of mathematics, physics, literature, history and philosophy, supporting scientific and technological innovation in the computer field, and supporting the cultivation of college students.

Protecting personal information and privacy has become a hot topic in the science and technology circle recently. At the 315 party, cases such as companies illegally collecting face information and cleaning up software stealing information from the elderly were exposed. From the perspective of the regulatory authorities, the protection measures for personal information are also increasing.

Last week, Yang Xiaowei, deputy director of the National Internet Information Office, said at a press conference that the Data Security Law and the Personal Information Protection Law are being stepped up to provide legal protection for data security and personal privacy protection at the legal level.

Yesterday, the State Internet Information Office, the Ministry of Industry and Information Technology, the Ministry of Public Security and the State Administration of Market Supervision jointly issued the Provisions on the Scope of Necessary Personal Information for Common Mobile Internet Applications (hereinafter referred to as the Regulations).

, which shall come into force on May 1, 2021.

Does the App have excessive collection of personal information? If the user does not agree to provide unnecessary personal information, the App refuses to provide users with basic functional services? In this regard, Sohu Technology reviewed the privacy policies of the top ten commonly used apps and compared them with the necessary personal information defined in the Regulations.

It should be noted that whether device and log information and Cookie belong to personal information is still controversial. If it is counted as personal information and strictly in accordance with the restrictions in the Regulations, Sohu Technology found that the top ten apps, including iQiyi, Baidu Map, Didi, Alipay, Meituan, Pinduoduo, Taobao, WeChat, QQ and Tik Tok, may need to be rectified. Because in addition to the necessary information mentioned in the Regulations, these apps will also collect users’ device and log information, Cookie and similar data files by default.

Generally speaking, equipment information mainly includes unique equipment identification code, login IP address, equipment model, etc. Log information mainly includes browsing records, retrieval records, access date and time, etc.

Of course, if the above information is not defined as personal information, then the personal information collection of these apps is basically compliant. Some apps have out-of-range information collection, which users can refuse and will only affect additional services.

Iqiyi:

In the "Regulations", the basic functional services of online audio-visual apps are "movies, music search and playback", and the basic functional services can be used without personal information.

In the privacy policy of iQiyi, iQiyi claims that the collection of device information and log information is to provide the most core service content display/play/download service. If the above information and/or permission are refused, the products and services may not be used. Iqiyi also stressed that individual device information, log information, etc. cannot identify the user’s identity information.

Specifically, the device information includes MAC address of the device, unique device identification code, login IP address, device model, device name, device identification, browser type and setting, language setting, operating system and application version, access mode to the network, network quality data, mobile network information (including operator name), product version number, and information related to the location of the device.

In terms of log information, iQiyi will automatically collect users’ personal online records and save them as relevant operation logs and service logs, including browsing records, likes/sharing/comments/interaction records, collection/attention/reservation records, playing records, playing duration, and date and time of visit.

Iqiyi said that Cookie and similar technologies may be used to collect some personal information of users, including their habits of visiting websites, browsing information and login information.

Didi:

In the "Regulations", the basic functional services of online car-hailing apps are "online taxi booking service and cruise taxi calling service", and the necessary personal information includes: 1. Mobile phone number of registered users; 2. The passenger’s departure place, arrival place, location information and whereabouts; 3. Payment information such as payment time, payment amount and payment channel (online booking taxi service).

In Didi’s privacy policy, personal information necessary to complete the above basic functions includes mobile phone number, itinerary information, payment information, location information, order information and transaction status, audio and video recording information, equipment information and log information.

Specifically, users need a mobile phone number and a password to register. If they log in with WeChat, they also need to obtain the OpenID； of WeChat platform. Travel information, including departure place, arrival place, whereabouts track, duration and mileage information; Payment information includes payment tools, payment account risk control information and payment status. If users use Didi Wallet, they need to set payment password, record balance, payment record, cash withdrawal record and bank card number.

In addition, Didi said that in order to improve the product safety capability, the sound information of the in-vehicle environment during the user’s trip will be obtained through software or hardware equipment. Some registered vehicles in the platform may be equipped with in-vehicle video recorders and other equipment, and users may be recorded with video information. Moreover, Didi will collect device information (including device model, operating system version, device settings, MAC address, device identifiers such as IMEI, IDFA and OAID, SIM card IMSI information, SIM card attribution, device environment, mobile application list and other software and hardware feature information) and log information (including browsing records, content retrieval, click to view records, transaction records, IP address browser type, telecom operator, language used, and access date and time).

Alipay:

In the "Regulations", the basic functions of online payment apps are "online payment, cash withdrawal, transfer and other functions", and the necessary personal information includes: 1. Mobile phone number of registered users; 2 registered user name, certificate type and number, certificate validity period, bank card number.

In Alipay’s privacy policy, users need to provide their mobile phone number or email address as account login names. Users also need to provide basic identity information, including name, nationality, gender, occupation, address, contact information, type, number and expiration date of valid identity documents, and color photocopies or photos of valid identity documents.

In the operation of balance payment, it is necessary to record the balance information and transaction information of the payment account; In fast payment, users need to provide the name of the bank, the card number of the bank card, the validity period of the bank card, the name and ID number, and the reserved mobile phone number of the bank; In the transfer operation, if you transfer money to someone else’s Alipay account, you need to enter the payee’s account, payee’s partial name and transfer amount; When transferring money to someone else’s bank card, you need to enter the payee’s name, card number and bank.

When a user makes a purchase, Alipay claims that it will collect the transaction information of the user directly or from merchants, including transaction amount, transaction object, transaction commodity, transaction time and delivery information (if any). If the user does not agree, the transaction may not be completed.

In addition, for security reasons, Alipay claims that it needs to record Alipay service category, mode, equipment brand, equipment model, equipment name, IP address, MAC address, equipment software version information, equipment identification code, equipment identifier, location, network usage habits, equipment-related application information and other log information related to Alipay services. If you don’t agree to record the above information, you may not be able to complete the wind control verification.

Baidu map:

In the "Regulations", the basic function service of map navigation App is "positioning and navigation", and the necessary personal information is: location information, departure place and arrival place.

Through Baidu Map Privacy Policy, we can see that the personal information directly provided by users and automatically collected by App includes: registration information, device information, location information, log information, vehicle information, address book information, calendar information, application list information, and the information beyond the scope is mainly collected for additional services.

For example, in terms of registration information, when registering a Baidu universal account, users need to provide the account name, avatar, secret email address, secret mobile phone, secret security questions, and create a password. Or, log in with a third-party account. Baidu map privacy policy points out that if you don’t log in to Baidu map, it will not prevent users from using the core business functions of location service and search service, but it will affect the use of additional business functions such as error reporting and comment.

Meituan:

In the "Regulations", the basic function service of catering take-away App is "catering purchase and delivery", and the necessary personal information includes: 1. Mobile phone number of registered users; 2. The consignee’s name, address and telephone number; 3. Payment information such as payment time, payment amount and payment channel.

In Meituan’s privacy policy, users need to provide their mobile phone numbers to create accounts, and improve relevant network identification information (such as avatar, nickname and login password, etc.); In terms of payment information, it is necessary to collect the order information, reconciliation information and other necessary information required by law; When it comes to delivery and other services, users need to provide the name, gender, mobile phone number, delivery address, house number, etc. of the consignee.

In addition, Meituan will also collect logs and equipment information. When users use the products/services provided by Meituan, Meituan will collect information such as browsing, searching, clicking, collecting, adding shopping carts, trading, after-sales, paying attention to, sharing and publishing, and save them as relevant web logs, including IP address, browser type, language used, operating system version, date and time of visit, telecom operator, network request, etc.

Meituan will also obtain user’s device information, including device attributes, connection and status information, such as device model, device identifier (IMEI/Android ID/IDFA/OpenUdid/GUID/OAID, SIM card IMSI, ICCID information, etc.), device MAC address, software list, telecom operator and other software and hardware feature information.

Pinduoduo:

In the "Regulations", the basic function service of online shopping apps is "purchasing goods", and the necessary personal information includes: 1. The mobile phone number of registered users; 2. The consignee’s name, address and telephone number; 3. Payment information such as payment time, payment amount and payment channel.

In Pinduoduo’s privacy policy, users need to provide their mobile phone number for registration to complete the basic function of "purchase", and Pinduoduo will collect the user’s equipment information, log information, order information and payment information.

Specifically, device information includes but is not limited to device type, device model, device setting, device identification code, device storage space, operating system and application version, language setting, resolution, and software and hardware feature information. In addition, Pinduoduo may write into the storage space of the devices used by users when accessing the Pinduoduo platform or using Pinduoduo services.

In terms of log information, Pinduoduo said that when users visit the Pinduoduo platform or use services, the system may automatically receive and record information on browsers and computers (including but not limited to IP address, browser type, search records, browsing records, browsing habits, language used, date and time of visit, telecom operators and web records of recording requirements).

The order information includes the name (or name) of the consignee, the receiving address and the telephone number. The order also contains the order number, the information of the goods or services purchased, the time of placing the order, the time of group formation, the actual payment amount and the payment method adopted. As for payment information, users can complete payment through third-party payment institutions, and the payment function itself does not collect personal information. However, Pinduoduo needs to share the user’s order number, transaction amount and transaction information required by other payment institutions selected by users with the payment institutions selected by users.

In addition, Pinduoduo said that users may know their identity and usage habits through cookies, but users can modify their acceptance of cookies or reject cookies from Pinduoduo through their browsers.

Taobao:

"Taobao Privacy Policy" shows that in addition to the telephone number required for member registration, the company will collect information about users’ collections, purchases and purchases, and the location of users to recommend goods and services. For the sake of security, Taobao said that it needs to collect and process the user’s equipment information and log information. In addition, in order to provide preferential information about nearby goods and services, the user’s location information will also be read, but the user can choose to turn it off.

Taobao said that most of the above personal information was provided by users voluntarily, or Taobao obtained it through Cookies, SDK and similar technologies when users used products, and some of it was obtained indirectly from third parties.

Wechat:

In the "Regulations", the basic functional service of instant messaging apps is "providing online instant messaging services such as text, pictures, voice and video". The necessary personal information includes: 1. The mobile phone number of registered users; 2. Account information: account number and account number list of instant messaging contacts.

The Guide to Privacy Protection of WeChat shows that when users register for WeChat service, the information they need to provide includes account information, mobile phone number, device model, operating system, login IP address, search conducted on WeChat, records of viewing operations and other log information. WeChat calls this kind of information "the basic information that must be collected to provide services".

When using functions such as nearby people, shaking, face-to-face group building and nearby applets, WeChat will record the geographical location information after obtaining the user’s consent. If it refuses to provide it, it will not be able to use the above functions. Wechat search, search and take a look also collect search records, reading records, recommendation records and visit times, comments and interaction records.

With the continuous superposition of WeChat functions, in addition to the basic communication functions, WeChat also carries many other needs, which inevitably involves more personal information collection.

QQ：

"Guidelines for QQ Privacy Protection" shows that when users use QQ services, they will collect log information such as device model, operating system, device Mac address, unique device identifier, application ID, login IP address, QQ software version number, access mode, type and status, network quality data, operation log, service log information (such as your browsing history under reading function, service failure information, etc.), which is for providing information.

QQ will collect some sensitive information, such as steps, mobile phone contact information and geographical location information, when users use some functions, but refusing to provide them will make users unable to use related specific functions, but will not affect the use of other QQ functions.

In addition, third-party partners of QQ will use third-party SDK to collect and use users’ personal information. For example, users can share specific content to Sina Weibo, and QQ is connected to Sina Weibo SDK. Third-party partners may collect personal common equipment information and network status. When users use Huawei mobile phones, the mobile phone manufacturer Push SDK accessed by QQ needs to collect the MAC address and unique identification information (such as IMEI) of the mobile phone device, and may collect parameters such as the user’s mobile phone model, system type, system version, network status, etc. for pushing information.

Like WeChat, the user information collected by QQ is also out of scope, but according to the Guidelines, if you refuse to provide relevant information, it will only affect the corresponding functions and will not affect the basic functions.

Tik Tok:

In the "Regulations", the basic function service of short video apps is "video search and play for no more than a certain period of time", and the basic function service can be used without personal information.

Tik Tok Privacy Policy points out that the information provided by users and obtained by automatic means includes account number, identity authentication, log information (click, follow, collect, search, browse and share), release information, address book, geographical location information and equipment information.

However, Tik Tok said, "Based on our cooperation with communication operators, when you use the" one-click login "function of Tik Tok, the operator will send us your mobile phone number with your express consent, so that we can provide you with fast login service. The mobile phone number belongs to personal sensitive information. If you refuse to provide it, you will not be able to register and log in to Tik Tok by "one-click login", but it will not affect your registration and login by other means, nor will it affect the normal use of other functions. "

In addition, Tik Tok said that in order to improve the uploading speed of audio and video, enrich the publishing function and optimize the experience, when users publish audio and video, Tik Tok will temporarily load the audio and video to the server before clicking "Publish" to confirm the uploading. However, users can turn it off in the settings.

To sum up, users’ device information, log information and Cookie are basically collected by default. After entering the App, there is no relevant button to choose to reject the "collected" device and log information; If you want to reject the "collected" Cookie, you need to turn off the relevant permissions in the browser, and you need the browser to support the relevant functions.

For example, in the Regulations, online audio-visual apps can use basic functional services without personal information. In iQiyi’s privacy policy, iQiyi claims that refusing to provide equipment information and log information may lead to the inability to use products and services.

It should be noted that the definition of whether device information, log information, etc. belong to personal information is still vague. Pinduoduo mentioned in his privacy policy that individual device information, log information, search keyword information and other information or data that cannot be directly linked with a specific individual are not personal information or personal sensitive information. However, according to the national standard "Information Security Technology Personal Information Security Specification" implemented in October last year, online records, common equipment information, etc. belong to personal information.

In today’s market, plug-in hybrid vehicles (PHEV) and automobiles (EREV) have become the focus of consumers’ attention. This paper will analyze the differences between the two models in detail, and discuss them from the aspects of cost performance, typical models, core competitiveness and shortcomings, and analyze them with real cases in order to provide valuable reference information for readers.

Basic principles and differences between (PHEV) and (EREV)

Plug-in hybrid vehicle (PHEV) has both traditional fuel and fuel, and can be driven in various modes, such as, pure fuel or so on. The car (EREV) is only equipped with an electric motor, and the battery is charged by the fuel engine to realize driving.

In terms of cost performance, the price of plug-in hybrid vehicle is relatively high because of its relatively complex power system and high cost. The car has a relatively simple power system and low cost, so the price is relatively low.

In terms of typical vehicle models, plug-in hybrid vehicles are represented by DM, PHEV, etc., and automobiles are represented by, etc.

The core competitiveness of plug-in hybrid vehicle lies in its flexible driving mode, which can be switched according to different scenarios, which can not only enjoy the driving experience, but also realize the fuel-driven endurance guarantee. However, its disadvantage is that the power system is complex and the maintenance cost is high.

The core competitiveness of a car lies in its driving experience, which has a high. However, its disadvantage is that the cruising range is limited by the battery power, and when the battery power is insufficient, the driving range will be affected.

Taking BYD Tang DM He as an example, the vehicle types are compared and analyzed;

1. Price: The price range of BYD Tang DM is 200,000-300,000 yuan, while that of Li ONE is 300,000-400,000 yuan. Plug-in hybrid cars have a slight advantage in price.

2. cruising range: BYD Tang DM has a cruising range of about 80-100 kilometers in the mode, and Li ONE has a cruising range of about 180 kilometers in the mode, so the car has more advantages in cruising range.

3. Power performance: BYD Tang DM can achieve strong power performance with the cooperation of fuel engine and motor. Li ONE, as a car, although not as good as plug-in hybrid car in power performance, can meet the daily driving needs.

Based on the above analysis, plug-in hybrid cars and cars have their own characteristics, and consumers can make choices according to their own needs. When buying a car, you can consider the car budget, cruising range, power performance and other factors, and combine the actual test drive experience to select the most suitable model for you.

(|||) (||)(||)ev is the first four-seat new energy vehicle under SAIC-GM. This model is mainly positioned as a commuter scooter, and can also be used for short-distance driving. Then when it comes to travel, you have to mention the cruising range of Wuling Hongguang. So what is the cruising range of this car? Let’s take a look at the detailed explanation of Pacific Auto.

The measured endurance is 150 kilometers.

At present, there are two models of the latest 2021 Wuling Hongguang MINI on sale, with a guide price of 376-436 thousand yuan and a cruising range of 120km and 170km. The main test is the 170km endurance version of Wuling Hongguang MINI, which runs on urban roads with normal driving habits. In the end, the cruising range of Wuling Hongguang MINI can reach 150km.

Excellent power system

The price of only about 40 thousand yuan can reach the battery life of 150km, which is very good, mainly thanks to the excellent power system of Wuling Hongguang MINI. In terms of power, the model is equipped with a permanent magnet synchronous motor with a total power of 20kw and a total torque of 85N.m, and is equipped with a 13.8kwh ternary lithium battery pack.

Security configuration

Wuling Hongguang MINI not only has excellent endurance and excellent power system, but also has rich safety configuration. In terms of safety, the new car is equipped with anti-lock braking, brake distribution system, main driver’s airbag, tire pressure monitoring, rear parking radar, rear image and uphill assist.

Through this description of the cruising range of Wuling Hongguang MINI, we can see that the measured cruising range of Wuling Hongguang MINI is very good.

The above is the related content of the measured cruising range of Wuling Hongguang MINI, which can reach 150km.

CCTV News:The Guangdong Provincial Health and Health Commission reported today (June 1) that there were 11 new confirmed cases in Guangdong on May 31, of which 1 case was diagnosed as asymptomatic infection, all of which were reported in Guangzhou. Two new cases of asymptomatic local infection were reported in Guangzhou. Since yesterday, Guangzhou has adjusted the pace of vaccination, first arranging group appointments and collective vaccinations for key industries and key groups in an orderly manner, suspending individual appointments and social vaccination for COVID-19 vaccines.

Dawn, Vice Mayor of Guangzhou:Recently, the general public’s willingness to vaccinate is high, and the inoculation points are overcrowded. In order to reduce the possible risk of Covid-19 infection, we temporarily stop social vaccination. Please rest assured! We will restart personal appointment vaccination and on-site vaccination as soon as possible according to the prevention and control situation.

The first task: strengthen the flow and trace the source and cut off the communication chain.

Li Ming, deputy mayor of Guangzhou, said that the virus gene sequencing of all the infected people in this epidemic is highly homologous, and all the infected people are mutant strains found in India. This virus has the characteristics of short incubation period, fast transmission speed and high virus load. Therefore, Guangzhou strengthened community prevention and control, and suspended social vaccination of COVID-19 vaccine. But will this affect the progress of establishing an immune barrier? Let’s listen to the experts.

Wu Hao, expert of Guangdong Working Group of the State Council Joint Prevention and Control Mechanism Comprehensive Group:Why stop the vaccination of some vaccines and concentrate on nucleic acid detection and screening is to strive for early detection. Vaccination is to produce antibodies, which may take some time. For the prevention and control of this epidemic, the role of vaccines is not particularly great. Generally speaking, the epidemic can be controlled within 28 days, that is, within two incubation periods. This is the first point. Second, generally speaking, vaccination in risk areas, especially social vaccination, may lead to the gathering of people and the possibility of unnecessary cross-infection. Therefore, the suspension of vaccination in some areas is also to avoid crowd gathering. Third, the primary task at present is to prevent and control the epidemic situation and cut off the community transmission chain. It is scientific to concentrate all efforts to control the source of infection and cut off the transmission route, and to suspend the adjustment of vaccination work.

As we all know, Guangzhou is a first-tier city, and we can’t completely stop the city, but for the "core area" of the epidemic, it is required to stop the area and reduce the possibility of cross-infection. Therefore, the core area and sub-core area are adopted to find the most appropriate balance between life production and epidemic prevention and control.

　　【Pacific auto network tire channel】 This issue of Xiaobian will introduce you to sports tires. The biggest feature of sports tires is high performance and excellent handling performance. There are many sports tires on the market, and the more choices car owners face when changing tires, the more tangled they tend to be. The average car owner will buy according to several aspects: brand, price, original tires and friends’ introduction, etc. These are good methods, but the most important thing is that the car mainly knows the tires and knows what kind of tires to choose. Therefore, Xiaobian will introduce the mainstream representative sports tires on the market, so that everyone can understand them first and then make a choice.　　

　 　In order to facilitate your reading, please first understand the following parameters:

　　Hub diameterAlso called rim diameter, it refers to the size of the tire suitable for mounting on the hub.load index, refers to the maximum upper limit load of the tire.speed, refers to the maximum upper limit speed of the tire.figure, refers to the structure of tread grain, mainly including symmetry, asymmetry and single direction.abrasionindex, is the main measure of tire tread wear performance and service life of the logo, the higher the score, the more wear-resistant.Traction index, which is a measure of the adhesion between tires and the ground, is divided into four levels: AA, A, B and C, with AA being the highest.Heat generation index, is the ability of tire to resist heat generation, which is related to the high-speed performance of tire. It is divided into three levels: A, B and C, with A being the best. (Please click for more details.This > > >)

　　　 What is a sports tire? Sports Performance The tread groove of the tire is relatively wide and the tread blocks are relatively large, in order to have good drainage performance and strong grip on the ground, but this kind of tire has obvious shortcomings, such as loud noise and poor comfort. Sports tires and comfortable tires are two extremes. To pursue the sports performance of tires, we must give up the comfort performance, and vice versa. However, there are also some tires that can achieve comfortable and well-balanced movement, such as Pirelli’s P Zero Rosso and Goodyear Sanneng.

You can click the following link to jump directly to the tire brand information you want to know:

　●　Korean brand:High performance/handling/safety

The use price range of compact, medium-sized and medium-sized cars with 16-19 inch wheels: 760-1600 yuan.

　 Korean sports tires are represented by Kumho Escta LE Sport KU39C and Han Tai Ventus S1 Evo K107, which are the representatives of these two brands. KU39C can keep the vehicle in excellent handling at high speed by dispersing the contact pressure. There are three large grooves in the center of the tread, which can improve the drainage ability of the tire, improve the handling safety and braking performance, and strengthen the safety of driving in rainy days when driving on wet roads.

　　　 Han Tai K107The interior is composed of high-density and high-strength steel wires and cords, and the tread also adopts the pattern design of 3D curve diversity. Moreover, through the latest computer simulation technology, the best dynamic grounding shape and stress state in various situations are obtained. Combined with the silicon-containing formula of HDS, HDBS can effectively shorten the braking distance of cars in sunny and rainy days, improve the driving stability, be more conducive to driving safety and save fuel.

　　　 In terms of wheel hub specifications, Kumho KU39C is 19 inches larger than Han Tai K107, and KU39C has only three dimensions of 16, 17 and 18 inches, while K107 has four dimensions of 16, 17, 18 and 19 inches. The range of K107 adaptive models is larger than that of KU39C, and its positioning is also higher than that of KU39C. However, the quotations on these two Taobao are not much different, or even the same. Both are Korean brands. How to choose them depends on consumers’ preferences.

●　Japanese brand: ultra-high performance/Handling/safety/comfort

Compact, medium-sized and medium-sized cars suitable for 14-20-inch wheels: 630-4400 yuan.

　　The representatives of Japanese sports tires are Deng Lupu DIRZZA DZ101 and Bridgestone POTENZA RE050. DIRZZA DZ101 is a sports tire in Deng Lupu, which contains a unique sports compound with Direzza pattern, and has strong grip and braking performance in dry and wet areas. DZ101 uses low noise pattern and mixed belt layer, which improves the quietness and comfort, and the wear resistance is also acceptable.

　　　 Bridgestone POTENZA RE050 is an ultra-high performance sports tire, which has ultra-high wet and dry road performance, and the outer tread is specially designed for dry road performance, ensuring the maximum grip and road adhesion. The inner pattern can improve the wet road performance to the greatest extent, and has good drainage effect, which can also provide excellent wet road performance and braking performance even at high speed. In addition, the design and layout of patterns suppress road noise and ensure comfortable driving. It is a tire with high ultimate performance and excellent handling performance.

　　　These two kinds of sports tire wheels have a wide range of adaptation, ranging from 15 to 20 inches, but there are still some differences. Deng Lupu DZ101 wheels have a range of adaptation from 15 to 19 inches, with a total of five specifications; Bridgestone RE050 has a range of 16-20 inches, with a total of 5 specifications. There is no 20-inch large size in Deng Lupu, while Bridgestone focuses on 16-20-inch large size, which is higher in positioning than DZ101 in Deng Lupu, and the price is quite different.

●　European and American brands:High performance/handling

Compact, medium-sized and medium-sized cars suitable for 16-22-inch wheels: 650-6600 yuan.

　　　 Representatives of sports tires in Europe and America include Goodyear Eagle F1 Directional 5, ContiSportContact 3, Pirelli P Zero and Michelin Pilot Sport 3. The tread of Goodyear Eagle F1 Directional 5 integrates three technologies: central annular rib, fully enclosed shoulder and polymer formula. The annular rib in the center of the tread improves the steering response ability; Shoulders on both sides are fully enclosed to reduce the noise generated by the tire during driving; The optimized tire carcass section increases the ground contact area, and finally improves the grip.

　　　　The most important feature of ContiSportContact 3 is its excellent steering accuracy. CSC 3 can maintain excellent road grip for vehicles when they are driving at high speed, undergoing fierce control or under great force on tires. Its asymmetric rib are used to absorb that longitudinal force generate during braking, and the tread ribs have high longitudinal hardness, while the continuous rib can absorb the longitudinal force, and when steering rapidly, the external forces generate high unilateral forces on the tread ribs.

　　　 Pirelli P zero is positioned as the original tire of the highest performance car and high horsepower model. itThree solid longitudinal rib patterns are adopted, and the hard pattern blocks on the shoulder can still have high lateral rigidity and steering response at high speed, which is better improved.racing carControl performance of. The three wide longitudinal grooves on the tread have the ability of rapid drainage and improve the safety and control ability of wetland driving.It adopts a new nano formula to give full play to the tire’s grip and stability to the best level.

　　　 Michelin Pilot Sport 3 is a high-performance and strong handling tire, which pays more attention to driving pleasure and handling performance. PS3 can make the vehicle achieve the effects of stable acceleration, high-speed cornering and shorter braking distance. As the silicon-containing formula is added to the tire, the shoulder is chamfered, which reduces the rolling resistance and saves fuel.

　　　 Ma brand CSC3 and Pirelli P Zero adapt to a wide range of wheels, the largest of which is 22 inches. However, the largest Goodyear D5 and Michelin PS3 are only 20 inches. Compared with the first two, the adaptation range is relatively small. Although the range of Michelin PS3 adaptive hub is only 15-19 inches, its positioning is higher than that of Goodyear D5, so the price is also higher. Ma brand CSC3 and Pirelli P Zero, as representatives of first-line brands, are up to 22 inches in size, so their prices are also very high, with the highest asking price of 6600 yuan.

If you want to know more about tires, please click on the related links below:

●　Korean brand:

1. Kumho:Ecsta LE Sport KU39C High Performance/Control

Suitable for compact cars and medium-sized cars with 16-18 inches wheels. Price range: 800-1600 yuan.

　　KU39C is a high-end sports tire positioned by Kumho, which can keep the vehicle in excellent handling at high speed by dispersing the contact pressure. The tread design of KU39C has three large centerline grooves, which can improve the drainage capacity, improve the handling safety and braking performance, and enhance the driving safety in rainy days.

　 　 The wear resistance index of KU39C is 280, and its wear resistance is average, but its traction index reaches the highest AA level, and its speed can reach the highest Y level (300km/h). KU39ChubThere are three sizes of 16, 17 and 18 inches, and now the main compact and medium-sized cars are suitable for this tire.

　 The mainstream specifications of KU39C market are as follows225/55 R16、235/45 R17and245/45 R18, the main adaptive models areAudi A4L、Volkswagen CCandRegalWait.

　 Editorial recommendation index：★★☆☆☆

　 Recommended reason:KU39C is an ultra-high performance sports tire in Jinhu, and its handling performance is not bad. However, as a third-line brand, its brand awareness and performance are still far behind those of first-and second-line brands, but it is better than its lower price and higher cost performance.

2. Hankook Tire: Ventus S1 Evo K107 Control/Safety

Compact, medium-sized and medium-sized cars suitable for 16-19 inch wheels: 760-1600 yuan.

　　 Ventus S1, Han Tai　Evo　K107 is a tire with excellent handling performance and high safety performance. Its interior is composed of high-density and high-strength steel wires and cords, and the tread also adopts the pattern design with various 3D curves. Moreover, through the latest computer simulation technology, the best dynamic grounding shape and stress state in various situations are obtained. With the silicon-containing formula of HDS, it can effectively shorten the braking distance of the car in sunny and rainy days, improve the driving stability, be more conducive to driving safety and save fuel consumption to a certain extent.

　 　 There are four sizes of K107 wheels: 16, 17, 18 and 19 inches. Because K107 is a sports tire, most of the wheels with large sizes are imported, and most of them are made in China with small sizes. 19 inches is completely imported, 17 and 18 inches are imported, and only 16 inches is completely made in China.

　　　 The main specifications of K107 are as follows225/55 R16、225/45 R17and225/45 R18Adapted models are concentrated in medium and large high-end luxury cars, includingAudi A8、Audi TT、Bmw Z4andMercedes-benz e-classWait.

　 Editorial recommendation index：★★★☆☆

　 Recommended reason:K107 is also the main sports tire in Han Tai, its sports performance is better than that of KU39C, and its price is almost the same as that of KU39C, and the small size is cheaper than it. The price will not be too high, which is acceptable to many consumers.

●　Japanese brands:

1.Deng Lupu DIRZADZ101 Control/Safety

Compact, medium-sized and medium-sized cars suitable for 15-19-inch wheels: 630-1980 yuan.

　　DIRZZA DZ101, known as a street fighter, is a high-performance sports tire in Deng Lupu. It is a tire with single guide pattern. It contains the unique sports composition of Direzza pattern, and has strong dry and wet grip. This composite is an organic combination of "highly filled carbon black particles" and "silicon oxide", which effectively expands the ground contact area and is easier to generate heat, thus improving the grip. They can make the tire have excellent grip and braking performance even at low temperature.

　　DZ101 uses low noise patterns and mixed belts to improve the quietness and comfort. The widened main longitudinal grain and the lengthened diagonal branch grain not only reduce the eccentric wear, but also play an excellent drainage performance. Direzza’s pattern effectively makes the wear distribution of the table top uniform and reduces the eccentric wear, whether in normal driving state or in sports driving state. Through the simulated skid experiment, it is verified that the design of the main groove and the secondary groove of DZ101 completely subverts the wet performance that people have difficulty in owning sports tires in the past.

　　　　The DZ101 wheel hub has five specifications of 15-19 inches, and the adapted models already include mainstream models, and the smallest 15 inches can be adapted to smaller modified models. It’s just that it has a tire width of 15-17 inches and gives people too few choices.

　　　　 DZ101 mainstream specifications in the market are as follows225/45 R17、225/40 R18and245/35 R19, adapt to the models are mainlyCIVIC、BMW 3 Series、RegalandCamryWait.

　 Editorial recommendation index：★★★★☆

　 Recommended reason:Deng Lupu DZ101 has excellent sports performance. It can be seen from its pattern that its sports performance is not simple. The price of this tire is not expensive, but it is only a few hundred more than the previous two models. The range of wheel hub adaptation is large, and the owners have more choices.

2. Bridgestone POTENZA RE050 ultra-high performance/control

Compact, medium-sized and medium-sized cars suitable for 16-20-inch wheels: 1080-4450 yuan.

　　POTENZA RE050 is a Bridgestone ultra-high performance sports tire, which has ultra-high wet and dry road performance, and the outer tread is specially designed for dry road performance, which ensures the maximum grip and road adhesion, and strongly supports the fast start and high-speed performance. The inner pattern can improve the wet road performance to the greatest extent, and has good drainage effect, which can also provide excellent wet road performance and braking performance even at high speed. In addition, the design and layout of patterns suppress road noise and ensure comfortable driving.

　　RE050, the flagship product of Bridgestone Poztenza series, has excellent extreme performance and high-level handling performance, which has created high-quality tires.

　 　 RE050 has five specifications of 16-20 inches, and there are many choices of tire width and flat ratio to meet the needs of different vehicle wheels. Due to the high-end positioning of RE050, the larger the wheel hub size, the larger its tire width, the smaller the flatness ratio and the more expensive it is.

　　 RE050 mainstream specifications are as follows225/50 R17、255/50 R18and285/35 R19, adapt to the models are mainlyBMW 3 Series、Bmw 5 series、Audi A8L、Mercedes C63andFerrari F430Wait.

　 Editorial recommendation index：★★★★★

　 Recommended reason:Bridgestone Potenza RE050 is a tire with excellent handling performance, excellent linearity and strong grip. Although the price of RE050 is on the high side, it is well controlled, and the noise level is well controlled in the sports tires, which is both expensive and reasonable. Xiaobian strongly recommends it.

●　European and American brands:

1. Goodyear: Eagle F1 Directional 5 High Performance/Sport

Compact, medium-sized and medium-sized cars suitable for 16-20-inch wheels: 800-2060 yuan.

　　　　Goodyear Eagle F1 Directional 5 is a tire with single tread pattern. The tread integrates three technologies: central annular rib, fully enclosed shoulder and polymer formula. This is Goodyear’s SportGrip technology. The central annular rib improves the steering response ability; Shoulders on both sides are fully enclosed to reduce the noise generated by the tire during driving; The optimized tire carcass section increases the ground contact area, and finally improves the grip. This design not only improves the grip, but also reduces the noise, killing two birds with one stone.

　　According to the test, D5′ s lateral grip is stronger than D3′ s, and its handling response is better when changing lines, and there will be no tire ringing or slipping for a long time when hitting the direction at a fast and large angle. This is mainly due to the design of the four main drainage grooves of the tread (to improve the drainage capacity) and the central annular rib (to improve the response ability of line change).

　　　　 D5′ s wear index is 300, which is not too high or too low. For an active high-performance sports tire, it’s ok. One thing we should pay attention to, D5 is a tire with a single guide pattern. What does this mean? When installing, it is necessary to clearly distinguish the direction from the inside and outside, and it is also very troublesome to choose the spare tire. It can only be installed on one side, and another time, we must find another way. Its wheels have five specifications of 16-20 inches, which are mainly suitable for compact, medium-sized and medium-sized cars.

　　　　 D5 mainstream specifications are as follows235/45 R17、255/55 R18and275/45 R20, the adaptive models areMercedes-benz e-class、Regal GS、Audi A8LandChevrolet CamaroWait a minute.

　 Editorial recommendation index：★★★★☆

　 Recommended reason:Although the handling performance of Goodyear D5 is not as good as that of F1 asymmetric 2nd generation, its handling performance is good. Mainly because its price is not too high, car owners who are not particularly demanding on handling can choose it.

2. Horse brand: ContiSportContaCt 3 ultra-high performance/control

Compact, medium-sized and medium-sized cars suitable for 16-22 inches (except 21 inches) wheels: 739-5140 yuan.

　　ContiSportContact 3 is a horse brand tire specially assembled for high-performance sports cars. Its most important feature is excellent steering accuracy. CSC3 can maintain excellent road grip for vehicles when they are driving at high speed, maneuvering sharply or the tires are under great force. How is its grip performance achieved?

　　In fact, the asymmetric tread ribs of CSC3 are used to absorb the longitudinal force generated during braking. The tread ribs have high longitudinal hardness, and the continuous tread ribs can absorb the longitudinal force. When steering rapidly, the external force on the tread ribs is high. Asymmetric tread rib design can stabilize ribs and reduce deformation under these forces, and the steering accuracy is higher.

　　Except on dry roads, it provides excellent braking performance and steering accuracy and shortens braking distance. On the wet road surface, the unique groove improves the drainage performance and provides excellent anti-skid performance.

　　　　 The specifications of CSC3 wheel hub are 16-22 inches (except 21 inches), and the models are compact, medium and large, and luxury cars, while the 22-inch wheel hub is suitable for more modified cars. Its wear index is 280, and its wear resistance is average, but its traction index reaches the highest AA level, and its handling performance is very strong.

　　　 The specifications of CSC3 mainstream are as follows245/45 R17、245/40 R18and255/45 ZR19And so on, the adaptive models areMercedes-benz e-class、S80LandPanameraWait.

　 Editorial recommendation index：★★★★☆

　 Recommended reason:CSC3 is the main sports tire of Mapai. It can exert excellent handling performance, and its wide pattern blocks can tell that the sports performance is high. It’s just that the wear resistance of this kind of tire is average, and as a first-line tire brand, Ma brand has a relatively high price.

3.Pirelli:P zero ultra-high performance/handling/comfort

Suitable for medium-sized and large-sized cars with 17-22-inch wheels. Price: 1280-6600 yuan.

　　P zero is a milestone of Pirelli products, and it is positioned as the original tire of the highest performance car and high horsepower model. it is458andLamborghini AventadorWaiting for the original tires of the super sports car. P zero adopts three solid longitudinal rib patterns, and the hard pattern blocks on the shoulder can still have high lateral rigidity and steering response at high speed, which is better improved.racing carControl performance of. The three wide longitudinal grooves on the tread have the ability of rapid drainage and improve the safety and control ability of wetland driving.

　　P zero adopts asymmetric tread pattern, which can effectively improve braking and handling performance. At the same time, it uses a new nano-formula to give full play to the tire’s grip and stability to the best level. Its tread contact with the ground is as uniform as the new P7, and its durability is good. Although P zero is an ultra-high performance sports tire, the "S-shaped" groove on the tread can help reduce tire noise, and this design helps to improve driving comfort.

　 　 　There are six sizes of P zero wheels, including 17-22, 21-inch and 22-inch, and its tire width is wide, which is suitable for more super sports car wheels. Its wear index is 220, and its wear resistance is average.

　　　 P zero mainstream specifications are255/35 R19、255/45 R19and295/35 R20, the main adaptation models areAudi A5、Audi A6、Mercedes GLKandFerrari458Wait.

　 Editorial recommendation index：★★★★★

　 Recommended reason:P Zero’s sports performance is recognized as good, and everyone is basically not picky about it, except for its high price. Just a sports car that deserves this kind of tire, the owner will not be there.Meaning that little money.

4.Michelin: Pilot Sport 3 high performance/strong handling/more fuel-efficient.

Compact, medium-sized and medium-sized cars suitable for 15-19-inch wheels: 650-3000 yuan.

　　Pilot Sport 3(PS3) is a Michelin tire with high performance and strong handling, which pays more attention to driving pleasure and handling performance. PS3 can make the vehicle achieve the effects of stable acceleration, high-speed cornering and shorter braking distance. Because the silicon-containing formula is added to the tire and the shoulder is chamfered, the rolling resistance is reduced, and PS3 is more fuel-efficient than PP2.

　 　 The wheel hub specifications of PS3 are biased towards mid-to high-end sports performance models, and the mainstream specifications are 245/45 ZR18. Here, we will explain the meaning of "ZR". In the first issue, we have explained that "Z" stands for high-speed tires. Suitable models for fitting this tire areRegal、Audi A6L、Ferrari 348TSWait. If you really like sports and your car’s wheels have the right specifications, you can consider changing into a PS3.

　 Editorial recommendation index：★★★★☆

　 Recommended reason:PS3 is not Michelin’s best sports tire, but its price and specifications are mainstream, and it is more accepted by the public than Ploit Supre Sport, but its performance is far from P Zero. However, the price of the PS3 is not high, and many car owners accept it.

　Related links:

() The business review of the Board of Directors in the first half of 2023 is as follows:

　　I. Main businesses of the Company during the reporting period

　　(a) the industry situation

　　The company belongs to intelligent network and intelligent transportation industry. With the rapid development of next-generation information technologies such as artificial intelligence, mobile internet and big data, intelligent networking and autonomous driving are becoming a new generation of intelligent transportation systems. Intelligent networked traffic system is an integrated intelligent network system that realizes real-time and high-precision perception of road traffic environment through advanced vehicle and road sensing equipment such as radar and video, and realizes communication, information exchange and control instruction execution between vehicles, vehicles and roads, vehicles and people, and vehicles and road traffic facilities according to agreed communication protocols and data interaction standards, and finally forms intelligent traffic management and control, intelligent dynamic information service and automatic driving of networked vehicles. Intelligent Transportation System (ITS) is an efficient, convenient, safe, environmental-friendly, comfortable, real-time and accurate comprehensive transportation management system which effectively integrates advanced information technology, data communication and transmission technology, electronic sensing technology and computer software processing technology into the whole ground transportation management system.

　　Intelligent transportation and digital transportation are the highlights of future development, and they are also important engines to promote the high-quality development of transportation. In recent years, China has accelerated the development of intelligent transportation and digital transportation, and issued a series of policies, such as the "Tenth Five-Year Plan" for scientific and technological innovation in transportation field and the overall layout plan for the construction of digital China, to guide the industrialization development of intelligent transportation and digital transportation in key areas such as intelligent transportation infrastructure, travel service and vehicle-road coordination. According to the data released by China Intelligent Transportation Association, the intelligent transportation market in China will reach 165.8 billion yuan in 2020, with a compound annual growth rate of 14% from 2017 to 2020. It is estimated that the intelligent transportation market in China will reach 243.2 billion yuan in 2023. In recent years, China has vigorously developed intelligent transportation and digital transportation, promoted the integration of next-generation information technologies such as cloud computing, big data, Internet of Things, mobile Internet, blockchain and artificial intelligence with transportation, and launched pilot applications of intelligent transportation. The scale of smart transportation technology expenditure in China has been increasing. With the gradual maturity of artificial intelligence technology and the promotion of many policies, the intelligentization, intellectualization and digitalization of expressways have become the main development direction of highway transportation. With the further development of digital traffic construction in China, the market scale of expressway intellectualization and digitalization will continue to climb. The China Commercial Industry Research Institute predicts that the market scale of expressway intellectualization in China will reach 90.3 billion yuan in 2023. The Chinese government has issued policies related to intelligent transportation and digital transportation.Encourage the construction of smart railways, smart civil aviation, smart ports, digital waterways, smart parking, smart traffic control and other fields, and promote the transformation of the transportation system to intelligence and digitalization.

　　Smart city is an important support of digital China, digital society and digital transportation. The outline of the 14th Five-Year Plan and the report of the 20th National Congress of the Communist Party of China focus on "building a livable, resilient and smart city" to promote the overall situation of Chinese modernization. The new smart city is a new concept and path to promote the modernization of urban governance system and governance capacity, and it is also an important carrier for the construction of a network power and the development of digital economy. On June 17th, 2023, the group standard of Green Smart City Evaluation Index System (T/ZSCPA001—2023) led by the National Information Center was officially released. With the deepening of new urbanization, the continuous implementation of "Digital China" strategy, the deep integration of digital technology and real economy, and the overall acceleration of digital transformation, the digital construction of smart cities is facing new opportunities. The development and integrated application of technologies such as 5G, Internet of Things and driverless help intelligent travel. More and more cities use technologies such as vehicle-road coordination, artificial intelligence, smart parking and cloud computing to monitor traffic flow, congestion index and delay index in real time to improve traffic efficiency. The growing ecology of new industries such as the Internet of Vehicles and the Internet of Things has effectively promoted the digitalization, networking and intelligent development of traditional industries such as automobiles and transportation, and has gradually evolved into a gathering of digital economic development such as smart travel and digital traffic management.

　　In recent years, relevant government departments have actively promoted the development of intelligent networked automobile industry, and the market scale of the industry has grown rapidly. On June 21st, 2023, the Ministry of Industry and Information Technology announced that it would start the pilot of intelligent networked vehicle access and road traffic, and support the commercial application of conditional (L3 level) and higher autonomous driving. On July 18th, 2023, the Ministry of Industry and Information Technology and the National Standardization Administration Committee issued "Guidelines for the Construction of National Vehicle Networking Industry Standard System (Intelligent Networked Vehicle) (2023 Edition)", pointing out that the system will form an intelligent networked vehicle standard system that can support the general functions of combined driving assistance and automatic driving from the first stage to 2025. With the accelerated change of science and technology in the industry and the accelerated upgrading of technology, China Commercial Industry Research Institute predicts that the market size of China intelligent networked automobile industry will increase to 150.3 billion yuan in 2023. In the field of vehicle electrification, intelligence and networking, China market is at the forefront of the world, which promotes the rapid improvement of the penetration and performance of intelligent driving assistance products and intelligent networking products. Thanks to the rapid development of new energy vehicles and the continuous strengthening of automobile intelligence, the demand for networked automotive electronic products is growing.

　　(II) Main businesses of the company during the reporting period

　　1. Overview of main business

　　Based on the national development keynote of "transportation is the key to rejuvenating the country and the foundation of strengthening the country", the company fully understands the customer demand and future development trend of the transportation industry based on years of experience and technology accumulation in the transportation industry, and is committed to constantly breaking through the tradition and pursuing innovation in the directions of smart transportation, smart cities and smart cars. The company builds a ubiquitous perception business ecosystem around "car" and "road", and based on artificial intelligence, car-road collaboration and digital twin common technologies, it forms three core driving capabilities of the Internet of Things: global fusion perception, space-time integration digital base, and cross-domain resource sharing and exchange. The main business can be summarized as 5 business divisions, 2 basic support systems, 2 business groups and 2 marketing systems. Among them, the five major business divisions include intelligent networking division, laser products division, automotive electronic products division, ETC products division and weighing products division; The two basic support systems include four R&D centers in Beijing, Wuhan, Suzhou and Shenzhen, and 32 prefecture-level technical service centers in China. Type 2 business groups include seven molecular companies and innovative businesses such as intelligent ETC; The two marketing systems include domestic business marketing and international business marketing.

　　2. Main products and uses

　　2.1. Intelligent networking series

　　2.1.1. Product category

　　Through years of continuous R&D investment in the field of intelligent networking, the company has gradually gained corresponding advantages in the market competition, forming a full-stack service capability covering "car-road-cloud-network-map".

　　1)V2X vehicle-road coordination

　　V2X series products adopt a new generation of C-V2X communication technology and support 5G mobile network communication, which is to realize effective data exchange among various elements in the transportation system, including vehicle-to-vehicle (V2V), vehicle-to-road (V2I), vehicle-to-person (V2P), vehicle-to-cloud (V2N) and other technical modes, namely vehicle-to-vehicle information exchange and vehicle-to-outside information exchange. The product has the characteristics of long coverage, low communication delay, large data communication bandwidth, stability and reliability, etc., and can be adapted to intelligent transportation solutions in high-speed mobile scenes. By interacting with the platform and infrastructure, the vehicle-road-cloud collaborative interaction can be realized, empowering assisted driving and automatic driving.

　　2) Global Fusion Perception of Internet of Things

　　In terms of global fusion perception of the Internet of Things, the roadside intelligent perception system independently developed by the company integrates the functions of road information perception, data storage and calculation, information relay transmission, etc., adopts advanced sensors to realize accurate perception of traffic information, integrates sensing equipment such as laser radar, millimeter wave radar and AI camera, analyzes and processes the perceived information by using edge computing technology, and transmits the information to surrounding vehicles, mobile terminals and the cloud with extremely low delay through 5G/V2X communication, thus realizing "vehicle-to-cloud".

　　3) Intelligent networked cloud control platform

　　Intelligent networked cloud control platform, based on high-precision map, 3D modeling and multi-source sensing data fusion, realizes digital twinning, intelligent networked, vehicle-road coordination and other functions, and is actually applied to intelligent networked demonstration area, vehicle networking pilot area, automatic driving test field, holographic intersection, intelligent expressway, digital tunnel, intelligent service area, digital toll station and other scenes.

　　2.1.2. Solution class

　　The company has launched an all-round vehicle-road collaborative solution for smart high-speed and dual-smart cities.

　　1) Intelligent Vehicle Infrastructure Cooperative Systems solution

　　Advanced roadside fusion sensing, V2X communication and next-generation Internet technologies are adopted to implement dynamic real-time information interaction between vehicles and roads in all directions.

　　2) Digital Tunnel Solution

　　Through the core technologies such as high-precision vehicle positioning and global tracking technology, the functions of global monitoring of two passengers and one dangerous vehicle, highly reliable event detection and release are realized, and the tunnel safety factor is improved.

　　3) Digital Toll Station Solution

　　Realize the manager’s one-map global operation state perception, vehicle global tracking, accurate shunting success rate statistics and fare evasion behavior evidence collection, and solve the toll station congestion problem through ramp free flow, lane diversion and lane control.

　　4) Digital service area solution

　　Realize the global tracking of vehicles, automatic management of parking lots, and accurate analysis of passenger flow portraits. Through the deep integration of unmanned sweepers and unmanned food delivery vehicles, we can provide customers with richer scene services, reduce costs and increase efficiency while increasing operating income in service areas.

　　5) holographic intersection solution

　　Real-time perception and digital conversion of intersection vehicles, queues, traffic trajectories, abnormal behaviors, collision accidents and other information, realizing real-time perception of all elements of intersection dynamic information, enabling intelligent networked vehicles and intelligent traffic control.

　　6) Smart bus solutions

　　Through intelligent perception and information interaction, it serves smart buses and passengers, making buses run safely and efficiently.

　　7) Automatic driving test site solution

　　Through infrastructure construction, an intelligent networked test traffic scene with automatic driving, traffic simulation, combination of reality and reality and flexibility and plasticity will be built.

　　2.2. Lidar series

　　The company’s lidar products cover single-line and multi-line, mechanical and solid-state lidar products, which are used in intelligent transportation, industrial mobile robots, autonomous driving and other fields.

　　2.2.1. Roadside Sensing Lidar

　　Roadside sensing lidar is widely used. In the field of collaborative construction of smart cities and intelligent networked vehicles, 3D lidar based on roadside "God’s perspective" can not only provide data basis for optimizing traffic control efficiency for cloud control platform of traffic management, but also provide over-the-horizon and multi-dimensional real-time traffic information for intelligent networked vehicles, enriching vehicle-road collaborative application scenarios. In the aspect of road traffic monitoring and management, products such as high-speed vehicle contour detection system, highway traffic investigation system, off-site law enforcement contour and vehicle identification system, laser vehicle detector, highway entrance and exit vehicle identification system developed based on roadside sensing laser radar can not only realize high-speed non-contact non-stop detection, but also maintain all-weather high-precision data acquisition. In addition, in the fields of mass transit such as rail transit and port terminals, the roadside sensing lidar and its application system can be used in electronic fences, subway gap detection, ship scanning of automatic terminals, protection of quayside and yard bridges, and collision avoidance of unmanned trucks.

　　2.2.2. Industrial mobile robot lidar

　　In the field of industrial mobile robots, the company mainly provides navigation and obstacle avoidance lidar products. According to different scenes, different models and different installation methods, the company has formed a complete product matrix of laser radar, which continues to iterate, including short-range anti-collision laser radar, high-precision SLAM navigation laser radar, indoor and outdoor mixed navigation 3D laser radar and indoor target navigation laser radar. At present, it is widely used in industrial AGV/AMR, automatic forklifts, heavy-duty tractors, and commercial service mobile robots such as cleaning, medical treatment, guidance, inspection and distribution.

　　2.2.3. Vehicle-mounted lidar

　　Vehicle-mounted lidar is a necessary sensor for advanced assisted driving and automatic driving above L3/L4, which can make up for the shortcomings of cameras, microwave radars and other sensors in specific scenes. The vehicle-mounted lidar developed by the company includes the front-mounted long-range main radar and short-range blind-compensating radar for passenger cars, which can help vehicles to make a three-dimensional, dynamic and accurate perception of the surrounding environment and provide more comprehensive perception information for realizing the NOA function or high-order assisted driving in cities. It can not only meet the pre-installation needs of car companies and OEMs, but also meet the navigation and safety protection needs of commercial vehicles (such as mine trucks and minibuses) and logistics distribution vehicles operating on open roads.

　　2.3. Automotive Electronics Series

　　The company’s automotive electronic products mainly include front-mounted V2X vehicle-road coordination and front-mounted ETC series products.

　　2.3.1. Front-mounted V2X vehicle-road coordination

　　V2X can be applied to different scenes such as expressways, expressways, urban roads, parking lots, ports, etc., to achieve information services, improve driving safety, improve traffic efficiency, empower intelligent traffic management and realize advanced intelligent driving. At present, the company’s automotive electronics has 4G/5G-V2X in-vehicle communication terminals and a variety of customized products. Through the interaction between the vehicle and the outside world, it solves the information perception problem of over-the-horizon and blind areas of vehicles, enabling vehicles to obtain a series of traffic information such as real-time road conditions, road information and pedestrian information, and supports the expansion of automotive networking applications. The company’s V2X vehicle communication terminal has non-domestic and domestic solutions, which can meet the needs of quick boarding and customized development of the main engine factory.

　　2.3.2. Pre-installed ETC

　　Pre-installed ETC, ETC-OBU designed according to vehicle regulations, meets the requirements of enterprise standards and national standards for the environment and reliability of on-board electronic equipment. In terms of installation and communication, it has achieved deep integration with vehicles, such as hidden layout, power taking from vehicles, access to in-vehicle CAN bus, etc., which provides a foundation for vehicle-road coordination and scene expansion of ETC and can meet the needs of different OEMs.

　　2.4. Special Short Range Communication Series (ETC)

　　The company’s dedicated short-range communication products include vehicle ETC-OBU, roadside ETC-RSU and a series of solutions for expressway and urban ETC.

　　2.4.1. Product category

　　1) vehicle ETC-OBU

　　The rear-mounted ETC-OBU, including two-piece ETC-OBU and single-piece ETC-OBU, is installed on the inner side of the front windshield of the vehicle. Through the communication between OBU and RSU, the transaction can be settled immediately when passing, and the function of non-stop charging can be realized. This product has Bluetooth function and can realize online recharge and online activation. One-chip ETC-OBU is an iterative product of two-chip ETC-OBU. Without inserting a user card, the transaction data can be directly uploaded to the background for transaction settlement, and the product supports external standard 5V power supply, which can realize the long service life of the product.

　　Intelligent ETC-OBU is an intelligent vehicle-mounted device, which integrates ETC, driving recorder and 4G network communication functions. It has the functions of professional cloud recorder technology, mobile phone interconnection service upgrade, real-time voice broadcast of ETC transaction records, real-time push of consumption bills, vehicle-mounted power supply to extend the service life of OBU, etc. Combined with the "Xiaowan Travel" APP independently operated by the company, it can provide car owners with value-added services such as refueling, car washing and maintenance.

　　2) Roadside ETC-RSU

　　High-speed ETC-RSU includes high-speed roadside ETC products such as portal antenna and lane antenna. Gantry antenna is installed on the gantry of expressway, which is used for vehicle information acquisition and path writing, and is the core equipment of gantry end in ETC subsection charging system. Lane antenna is an antenna installed at the entrance and exit lanes of high-speed toll station, which is used to write the information of vehicle entrance and deduct the fee at the exit. It has the functions of positioning and satellite synchronous timing, and has the characteristics of preventing adjacent channel interference and car-following interference.

　　Urban ETC-RSU includes urban ETC products such as intelligent parking management roadside unit and intelligent dual-mode identification integrated machine. According to the application characteristics of urban scenes, control, radio frequency and communication are integrated into one, which has the advantages of high transaction success rate, fast installation, easy docking and low operation and maintenance, and can be applied to gas stations, parking lots, roadside parking management and other scenes.

　　2.4.2. Solution class

　　1) A series of solutions for expressway toll optimization.

　　Digital channel fast toll collection system, pre-transaction through ramp, ETC fast channel verification pre-transaction to solve the problems of toll station entrance and exit congestion, vehicle verification and management difficulties.

　　The accurate restoration route charging system, which is highly integrated with laser-triggered camera capture technology, AI enhanced identification technology, multi-dimensional matching technology and cloud path fitting technology, can effectively restore the real path of vehicles and guide charging, and reduce the loss of owners’ fees.

　　2) Expanding application solutions for urban ETC.

　　ETC on-street parking solution, by erecting RSU antenna on the cross section of the road, realizes accurate identification and accurate deduction of passing vehicles, helps parking operators to improve the charging rate and reduce the loss of state-owned assets.

　　ETC smart parking solution, relying on ETC technology to install RSU antenna at the entrance and exit of the parking lot, taking OBU as the vehicle carrier, realizing fast traffic and charging without stopping.

　　ETC refueling solution, by installing explosion-proof antenna to realize accurate identification of gas station vehicles, and by connecting with the zero pipe system of gas station to realize accurate deduction, the owner of OBU vehicles has realized non-inductive refueling and fast passage.

　　2.5. Dynamic weighing series

　　The company’s dynamic weighing products mainly include sensors, control instruments and a series of solutions for different application scenarios.

　　2.5.1. Product category

　　1) sensor class

　　Digital narrow strip weighing sensor is a new generation of road sensing device, which has five characteristics of digitalization, intelligence, intensification, simplification and coordination, and can realize the sensing of vehicle information such as vehicle weight, axle type, vehicle type, axle load, unbalanced load and tire pressure, as well as the sensing of traffic infrastructure conditions such as road injury and bridge protection.

　　Multi-hidden road sensor integrates multi-dimensional information such as strain, vibration, temperature, etc. It is constructed synchronously with the road by pre-installation, and integrated with the road. It can detect various kinds of information such as vehicle weight, vehicle type, road vibration and road damage at the same time. It has the advantages of non-inductive detection, safe traffic and reliable data, and can be applied to smart roads, road maintenance, and overload control by science and technology.

　　2) Control class

　　The weighing display control instrument is a new type of intelligent dynamic weighing management instrument specially designed and developed by the company for the automatic weighing instrument of dynamic road vehicles, which has the characteristics of high stability, good software compatibility, strong interface expansibility and low maintenance cost.

　　2.5.2. Solution class

　　1) Solution for expressway scene.

　　The expressway entrance overload control system innovatively uses the narrow strip sensor as the core weighing equipment to build the system, and integrates weighing with laser detection technology and ETC technology, forming a standardized construction scheme covering a series of functions such as weight detection, contour detection, vehicle type identification, drive shaft detection, and large vehicle detection.

　　The expressway provincial boundary overload control system is divided into front-end detection system and station-level management platform, which can form an effective closed loop with the weighing detection at the entrance and exit of expressway toll station, strengthen the information law enforcement supervision such as monitoring and early warning of truck overload, illegal evidence collection and case handling, and better protect people’s lives and property safety and highway assets in good condition.

　　The expressway exit overload control system, based on free-flow non-stop detection technology, carries out overload detection and recheck of vehicles about to leave the expressway, and forms an effective closed loop with the entrance detection of expressway toll stations. At the same time, it is linked with the ramp pre-transaction system to realize fast and safe traffic and accurate charging of vehicles.

　　2) Scenario solution for national and provincial trunk highways

　　The off-site law enforcement system of overload and overrun integrates advanced algorithm technology and stable and efficient data processing equipment, which ensures the stable operation of the system under unattended conditions and realizes accurate and stable detection of any vehicle in free-flow driving state. The system is equipped with a back-end information integrated management platform, which stores and uploads complete law enforcement evidence data, and carries out data sharing and law enforcement linkage with road administration, transportation management, public security and other relevant departments.

　　The source overrun detection system, by arranging front-end data acquisition equipment such as weighing, license plate recognition and image capture in the freight source station, can identify, monitor and warn the state of trucks in the station in real time, and upload the detection data to the management platform to help road management agencies and road transport management departments establish a linkage law enforcement mechanism, and strengthen the supervision of freight vehicles, vehicle drivers and freight enterprises that violate the law and overrun.

　　3) Scenario solution for highway infrastructure safety monitoring.

　　Digital bridge comprehensive solution, based on dynamic weighing detection, structural health monitoring, digital twinning, traffic digitalization and other core technologies, enhances bridge structural health monitoring and early warning capabilities, enhances traffic perception and emergency handling capabilities, strengthens bridge health assessment and scientific maintenance capabilities, and ensures bridge operation safety. The scheme can be applied to "structural health monitoring project of highway long bridges" and "lifeline safety project of urban infrastructure".

　　4) Scenario solution for comprehensive traffic informatization.

　　The overload management information system is a comprehensive information management and business platform based on big data architecture for the company to combine its own technology and product advantages, integrate the data of all kinds of overload control sites at the front end, and open up key nodes of business processes at all levels, so as to realize cross-regional and cross-departmental overload control data sharing, business collaboration and joint law enforcement, and realize the "one chess game" of overload control supervision service.

　　Intelligent transportation integrated management platform integrates traffic operation monitoring, asset management, road maintenance, overload control, etc. It comprehensively supervises different types of vehicles such as taxis, buses, two passengers in danger, and builds a public information publishing platform, making full use of small programs, WeChat official account, APP, government portals and other ways and means to make information transparent, and providing the public with various transportation services such as road information and travel guidance.

　　(3) Business model

　　During the reporting period, the company mainly made profits by "products+services", and the profit sources mainly included product and system sales and service provision. The company sells intelligent networking, lidar, automotive electronics, ETC, dynamic weighing and other related products and supporting software or platform systems to customers, and carries out civil construction, equipment installation and debugging, system debugging, technical training and other processes according to the requirements of specific products. Finally, after passing the acceptance test, it obtains the completion acceptance form of the other party, collects the project contract money, and obtains income and profit. In addition, the company provides value-added services to customers according to the signed technical service contract, including daily maintenance, repair, update and upgrade of equipment.

　　(IV) Analysis of business operation during the reporting period

　　In the first half of 2023, benefiting from the construction of digital intelligent transportation in China, the company achieved an operating income of 322,138,100 yuan, up 2.17% over the same period of last year, and an operating income of 216,527,400 yuan in the second quarter, up 67.94% over the same period of last year. The company’s intelligent network connection and automotive electronics business achieved rapid growth during the reporting period. At the same time, the company continued to increase R&D investment, and continuously improved its product and solution capabilities in intelligent networking, lidar and automotive electronics. In the first half of 2023, the R&D investment was 143,133,400 yuan, a year-on-year increase of 5.37%; During the reporting period, the company increased the marketing efforts of intelligent network connection and other businesses, resulting in an increase in marketing expenses compared with the same period of last year. Due to the comprehensive influence of the above factors, the company’s net profit decreased year-on-year. During the reporting period, the company’s business operations are as follows:

　　1. Business development

　　1.1. Intelligent networking

　　1.1.1. Technical progress

　　In terms of intelligent networking technology research, product development and solution capability improvement, the company closely follows the national and local development strategies, and relies on holographic stereoscopic perception ability to propose the overall architecture of urban intelligent transportation, which is divided into infrastructure layer, business support layer, domain service layer and business scene layer. The platform system can provide refined, diversified and differentiated transportation service applications for three types of users, such as government, enterprises and the public. During the reporting period, the company continued to strengthen the four core capabilities of space-time integrated digital base, holographic stereo perception, real-time dynamic twinning, and real-time interaction between vehicles and roads. Based on the all-round technical capabilities of vehicle-road-cloud-network-map, the company comprehensively improved the architectural capability and delivery capability of the vehicle-road collaborative closed-loop solution for high-grade autonomous driving.

　　1.1.2. Market progress

　　In the face of complex inter-city and urban traffic scenes, the company puts forward scientific and systematic governance schemes according to different traffic characteristics and respecting people-oriented needs, so as to help the intelligent and digital transformation of inter-city and urban traffic.

　　In the aspect of intelligent high-speed construction, the company’s intelligent high-speed comprehensive solution is based on global perception, supported by digital space-time base, and carried by intelligent high-speed platform, and integrates artificial intelligence, digital twinning and other technologies to build systems such as "global twinning, operation monitoring, simulation decision-making, emergency command and vehicle-road coordination", thus creating a "digital world" for expressways. Typical intelligent construction projects include Chongqing Yuxiang Expressway Intelligent Project and Yunnan Zhaoyang Intelligent Expressway Project. In the intelligent project of Chongqing Yuxiang Expressway, the company has built a digital space-time base, an edge data center, a digital tunnel system, a digital toll station system, and a risk section perception system of the main line, which has helped users realize the digitalization of infrastructure and improved the traffic efficiency and safety of key nodes. In the construction of Zhaoyang Smart Expressway in Yunnan, the company undertook the safety prevention and control system for tunnels and affected areas, adopted V2X communication system and information release system, and provided timely traffic information prompt and accurate guidance for networked vehicles and non-networked vehicles. The company’s smart high-speed comprehensive solution puts forward targeted strategies according to the pain points of different scenarios, covering the full-service scenarios of expressways such as tunnels, toll stations, ramps, vehicles and roads, bridge monitoring, test sites, etc., and realizing the wisdom of everything.

　　In the construction of Shuangzhi city, the company has continuously strengthened the four core capabilities of space-time integrated digital base, holographic stereo perception, real-time dynamic twinning and real-time interaction between vehicles and roads, and comprehensively improved the architectural capability and delivery capability of the company’s vehicle-road collaborative closed-loop solution for high-grade autonomous driving. During the reporting period, the company participated in the construction of typical double-smart city scenes in China, and landed in many scenes across the country. Among them, he deeply participated in the construction of Wuhan Intelligent Networked Vehicle Test Site and Qingdao High-tech Zone Intelligent Networked Vehicle Test Road, and provided roadside perception, communication and V2X scene construction support. In-depth participation in the construction of collaborative autonomous driving test sites for high school buses such as Chang ‘an University, Tongji University and Qinghai Jiaotong University, providing products such as virtual and real simulation and three-item mapping. In the third phase project of Jiangxi Jiujiang 5G Smart Science and Technology City, the bus automatic driving assistance system was built through the cooperative infrastructure transformation of vehicles and roads at multiple intersections. In the smart parking lot project of Zhongguancun Software Park in Beijing, the application scenarios such as roadside foundation design and perception sharing safety early warning are provided. The company contributes to the construction of Shuangzhi city by creating a vehicle-road coordination scheme for different levels of perception needs.

　　In the field of urban comprehensive management, with the help of the 13th China Road Traffic Safety Products Expo, the company released solutions for global integrated perception of road network, urban traffic signal control, refined urban management and mobile smart base station products for traffic police, which were applied in Changsha, Suzhou, Jinan and other places respectively, and made an extension from the smart traffic business line to the smart traffic management business line.

　　1.1.3. Progress in industry standards

　　In terms of industry standards, the company took the lead in establishing the Data Interface Requirements between Roadside Communication Units and Roadside Infrastructure, which is under the jurisdiction of the Internet of Things Sub-technical Committee of the National Information Technology Standardization Technical Committee. The purpose of this standard is to improve the compatibility between roadside communication terminals and roadside infrastructure, realize the interconnection between roadside infrastructure, and facilitate the large-scale construction and deployment of vehicle-road coordination. In terms of group standards, the company initiated the projects of RSU Equipment Evaluation and OBU Equipment Evaluation in Xiong ‘an Innovation Federation, aiming at further enhancing the influence of the company’s products in xiong’an new area and accelerating the landing of subsequent projects. The company mainly participated in the Technical Requirements for Application-layer Interaction of Cooperative Intelligent Transportation System Part 2: Perceptual Data Sharing, which was centralized by China Automotive Engineering Society. This standard stipulated the technical requirements for application-layer interaction of services of perceptual data sharing, including architecture and functions, general requirements, communication process of application-layer and application definition. The company mainly participated in the Technical Requirements and Test Methods of Roadside Infrastructure RSU for Vehicle-Road Collaboration, which is under the jurisdiction of China Automotive Engineering Society. This standard is suitable for guiding the design, development, operation and maintenance of RSU facilities in Intelligent Vehicle Infrastructure Cooperative Systems, an urban road, to support the development of vehicle-road collaboration application services. The company mainly participated in the Code for Design of Intelligent Accessory Facilities for Expressway Operation, which was centralized by China Technology Market Association and led by Shanxi Intelligent Transportation Research Institute.This standard stipulates the functional requirements, performance requirements and safety requirements of related systems at all levels of intelligent design technology for operating expressway ancillary facilities. The company’s standard team has participated in 59 published standards in the field of intelligent networking, including 5 national standards, 4 industry standards, 49 group standards and 1 local standard. There are 176 standards under compilation, including 23 national standards, 26 industry standards, 26 local standards and 101 group standards.

　　1.1.4. Progress in scientific research achievements

　　In terms of scientific research achievements, by the end of the reporting period, there were 119 valid patents in the field of V2X intelligent networking, and 443 patents were under application. During the reporting period, there were 50 new patent applications, of which inventions and PCT patents accounted for 72%. In April 2023, the company’s "Digital Twinning Helps Haidian Changchun Bridge to Create a Digital Holographic Demonstration Intersection of Capital Civilized Traffic" was selected into the list of outstanding cases of urban digital twinning in 2022 published by the Smart City Working Group of the National Signaling Committee.

　　1.2. Lidar

　　1.2.1. Technical progress

　　During the reporting period, the company continued to innovate in technology, and released laser radar products as follows: (1) Roadside 64-line laser radar WLR-733, whose 64-line beam is designed downward, with high-quality point cloud and super-large detection area, 360-degree horizontal field of view and the company’s unique vertical field of view (as low as 0.1-degree vertical angle resolution), and the range of 10% reflector reaches more than 200m. The farthest ground line can realize the stable detection of 110m, which is a rare lidar product on the market at present, taking into account both "measuring distance" and "measuring breadth". At the same time, an SDK with structured data output function and a lightweight edge controller have been developed to facilitate the layout and use of customers. (2) The self-driving 64-line blind-compensating radar WLR-721, with a vertical field of view of 90 degrees and a range of 30 meters (10%), is one of the blind-compensating radars with the largest vertical field of view in the industry at present. The design scheme of VCSEL+ array SIPM is adopted, which greatly reduces the radar volume and power consumption. (3) Single-line small navigation radar WLR-718H, adopting the chip scheme of DTOF not only improves the integration of laser radar and simplifies the production process, but also significantly reduces the size of the whole machine, especially reduces the height of the whole machine to about 40mm, making it more convenient to adapt to the low chassis of hidden AGV and the shelf identification of forklift forks.

　　In terms of vehicle-mounted lidar, the vehicle-mounted 128-line lidar developed by the company has greatly improved its performance in ranging, blind area and noise suppression (high reflection, ghosting and expansion). The first turn of ASIC chip for vehicle-mounted radar developed by the company has been returned and is being tested in system function. In terms of pre-research, the company has developed the prototype of flash blind-compensating radar at the same time, and it is progressing smoothly at present.

　　1.2.2. Market progress

　　In the field of smart transportation, the company continues to increase the market share of roadside sensing lidar products in highway traffic survey, vehicle detector, vehicle detection in service area, vehicle identification and classification, outline size detection, etc., improve the competitiveness of products by reducing the comprehensive layout cost of users (increasing the sensing range, SDK providing structured data output function, etc.), and increase the flexibility of user equipment configuration by decoupling the sensors and algorithms of smart base stations based on lidar. At present, it has successfully entered the supply chain list of many smart transportation solution suppliers. In the field of unmanned commercial vehicles, the company adopts multi-model laser radar to provide integrated solutions for navigation, blind compensation and collision prevention for mobile robot enterprises in a high/low collocation way, and actively sends laser radars to unmanned commercial vehicles such as clean sanitation vehicles, safety patrol vehicles, manned vehicles, logistics vehicles and engineering work vehicles for mass production and supply. The company fully communicates with autonomous driving enterprises, robot head enterprises, internet enterprises and system integrators to provide all-round solutions for laser radar and further enhance customer coverage. In terms of special vehicle application scenarios, the company provides main radar and blind-compensating radar solutions and tests them to further enhance the overall solution capability of lidar.

　　In terms of industrial mobile robot laser radar, the company started to continuously expand new customers of industrial robots such as AGV and AMR from the aspects of quality, cost and technological advancement, increased the coverage of head enterprises, actively increased the market share in the field of industrial robots, and the overall market share was improved. Expand new customers in the field of service robots such as commercial guidance, distribution, disinfection, cleaning and inspection, and continue to increase the scale of import substitution. At the same time, the company used lidar-related projects in Chengdu ground rail transit, and actively expanded its applications in security protection fields such as ports and railways. In addition, the company actively expands the overseas market of lidar, and has achieved sales in Europe, America, Southeast Asia and other places.

　　In terms of vehicle-mounted lidar, the company’s 128-line vehicle-mounted lidar actively conducted joint testing with the main engine factory and the autonomous driving company, and obtained a letter of designation from a vehicle company. The company simultaneously carried out the construction of the vehicle-mounted lidar automatic assembly production line, and made preparations for production and supply chain for subsequent mass production. At the same time, the company officially launched a global promotion of vehicle-mounted lidar to international automakers to enhance the visibility and influence of the company’s vehicle-mounted lidar in the global market.

　　1.2.3. Progress in industry standards

　　In terms of industry standards, the industry standard "Vehicle-Road Cooperative Roadside Lidar Detection Method" compiled by the company in china communications standards association is being solicited for comments. This standard plays an important role in unifying roadside lidar testing methods and standardizing the development of roadside lidar industry. The company has participated in the development of standards in the field of lidar, and has published two group standards, namely, Laser Vehicle Detector for Traffic Information Collection (the company is the lead unit) and Detection Method for Vehicle-mounted Lidar, and 16 other standards are being compiled, including 2 international standards, 3 national standards, 4 industry standards and 7 group standards.

　　1.2.4. Progress in scientific research achievements

　　In terms of scientific research achievements, as of the end of the reporting period, there were 388 valid patents for lidar products and 390 patents under application. During the reporting period, there were 15 new patent applications in the field of lidar, of which inventions and PCT patents accounted for 75%, and OPA Fang Xiangxin added 3 invention patent applications and 3 PCT patent applications.

　　1.3. Automotive Electronics

　　1.3.1. Technical progress

　　For the front-loading V2X, in order to meet the requirements of different customers, such as price and localization rate, the company has designed corresponding non-domestic and domestic solutions and cost reduction, which can cover the boarding needs of most OEMs. On the technical standard level, the company participated in the parts verification of the first recommended national standard "Technical Requirements and Test Methods of Vehicle Information Interaction System Based on LTE-V2X Direct Communication" in V2X field, which fully verified the compliance of the products. In terms of software design, the company has the ability of self-research of software, and has developed SOA system architecture for distributed services and software architecture based on AutoSar, which is in line with the current advanced domain centralized EE architecture and can realize flexible deployment of services. At the application scene level, the company continues to carry out the research and development of the second phase scene and the high-level automatic driving scene based on V2X, accelerating the scene landing and deepening the user’s perception, and further empowering the high-level automatic driving.

　　For the front-loading ETC, in order to strengthen the development strategy of vehicle-road coordination and deeply implement the policy of vehicle-road coordination integration based on the concept of "traffic watcher", the company has launched the technical scheme of vehicle-road coordination, and has completed the debugging of the first version of the scheme in cooperation with the road network center, and completed the testing of the scheme in the demonstration area. The technical route of ETC-based vehicle-road cooperative extended broadcasting scheme is as follows: the roadside unit RSU uses the 5.8GHzDSRC protocol to interact with the vehicle-mounted unit OBU and ETC partners, among which the ETC partners adopt the broadcasting form. At the same time, we will expand the cooperative application of vehicles and roads in off-highway scenes (such as the release of events under municipal roads, the release of mobile events for special vehicles such as rescue and maintenance), and issue the events after verifying the legality of the pre-installed ETC.

　　1.3.2. Market progress

　　During the reporting period, the company continued to promote the innovative application and practice of vehicle-road coordination and autonomous driving technology, consolidate the foundation of data information interconnection and help the development of intelligent transportation.

　　As the key technology of intelligent transportation system in the future, the front-mounted 4G/5G-V2X is the future development direction of intelligent transportation and intelligent networked vehicles. The company has established a research and development team, a supply chain team, a quality management team and a production team for vehicle networking, implemented the integrated development strategy of vehicles and Lu Yun, and provided overall solutions for the industrial chain. During the reporting period, the company completed the construction of the automated 5G car networking production line, which provided a solid guarantee for the company to deliver the 5G car networking products of the OEM. The company carries out visual management of manufacturing, improves the management level of warehousing and logistics, completes mass production delivery of products for designated car companies, and ensures the high-quality operation of production and supply chain systems. At the same time, the company actively communicated with more car companies, pre-installed 4G/5G-V2X before testing, strived to obtain more car companies’ fixed points, and supported the application expansion of car networking. During the reporting period, the company started the development of a new generation of integrated TCU products, which can meet the needs of most car networking in OEMs, and has conducted technical exchanges and tests with mainstream OEMs in the industry.

　　In terms of pre-installed ETC, in response to the system planning and related facilities construction of the smart expressway pilot project, the company responded to the requirements of the Ministry of Transport on deepening the application of the portal frame of the electronic toll collection system (ETC) of expressways, and promoted the coordinated construction of vehicles and roads based on the ETC system to meet the diversified needs of automakers, and continuously optimized and upgraded the pre-installed ETC products. On the premise of multi-functional applications (such as optional CAN communication module, online release activation, remote program update and other value-added services, as well as multi-functional expansion of rearview mirror, DVR, central control and T-BOX, etc.), the technical scheme based on vehicle-road coordination is introduced. At the same time, the pre-installed ETC installation rate and activation rate of the company’s original customers have been improved, and the overall loading rate has steadily increased. The company and a number of internationally renowned brand car companies have determined the long-term ETC scheme, established a long-term cooperative partnership, and fully cooperated with the smart transportation scheme of the Ministry of Transport and the road network center.

　　1.4. Dedicated short-range communication (ETC)

　　1.4.1. Technical progress

　　As the leader of domestic ETC technology, the company applied advanced technologies such as DBF phased array technology and spatial array positioning technology to ETC free-flow system, and made major breakthroughs in key technologies such as RSU dynamic area control, ETC-OBU dynamic tracking and accurate positioning, ETC-RSU/OBU transaction scheduling, and ETC-OBU concurrent processing, which greatly improved the adaptability of multi-lane free-flow products to high-speed passing cars and vehicle tracking.

　　1.4.2. Market progress

　　1) After-loading OBU.

　　The company completed the cost reduction of single-chip and double-chip OBU, continued to promote single-chip OBU, completed the promotion of new Heilongjiang, Jiangsu, Shanghai, Chongqing, Guangxi and other places, and conducted docking debugging with Inner Mongolia, Jilin, Guangdong and other provinces. During the reporting period, the company obtained the Beijing Alipay ETC4.0 project, continued to expand its market share, and jointly studied motorcycle OBU with the Beijing ETC issuer. Based on the original functions such as voice interaction, Beidou positioning and 4G communication, the company’s intelligent OBU develops more new functions of vehicle-road coordination to meet the requirements of the optimization and upgrading scheme of expressway networked toll collection system.

　　2) Highway application.

　　Combined with the upgrading direction of the networked toll collection system, the company expanded the application value of ETC system and launched an intelligent portal frame system based on the vehicle identification technology of laser vision fusion. The scheme has achieved normal operation in many provinces and cities across the country, and established provincial boundary electronic fences in Sichuan Expressway to achieve accurate empowerment audit and escape; Establish a vehicle portrait system at the boundary of Guizhou province to provide effective evidence for inter-provincial splitting and analysis of charging differences; Help Beijing Shoufa Group to improve the capture ability of snap cameras, improve the accuracy of billing system, and improve the charging amount and audit ability. At the same time, the company mainly promotes a number of new system schemes, such as audit work order robot, global digital road network based on ETC portal frame, standardized toll station solution, ETC service area vehicle monitoring scheme, ETC long bridge vehicle monitoring scheme and so on. The above new schemes will soon be implemented in Zhejiang, Guizhou, Sichuan, Henan and other places.

　　3) Urban application development.

　　The company has formed a product portfolio covering parking hardware, management platform, ETC multi-scenario solution and city-level smart parking overall solution. During the reporting period, the company actively promoted the ETC expansion application platform and reached cooperation in Liaoning, Hubei and other places to drain the parking lot resources to the issuer. In terms of product research and development, the company improved and optimized the antenna series products in the parking lot, and completed the joint debugging of antenna development with partners. The company extended the overall solution of city-level smart parking to large and medium-sized cities in China, and implemented ETC parking projects in landing cities such as Hunan, Liaoning and Shandong.

　　1.5. Dynamic weighing

　　1.5.1. Progress in technology

　　The company combines the dynamic weighing business with laser, and puts forward the application solution of multi-line laser radar in off-site law enforcement of truck overload and road traffic flow survey. Based on the point cloud information and accurate point cloud ranging provided by multi-line laser radar, it can carry out holographic perception, accurate perception and trajectory tracking for traffic participants, provide multi-dimensional visual evidence chain support for off-site law enforcement of overload and overload, and provide scientific data support for traffic management decision-making and traffic planning and design in road traffic flow survey scenarios, thus providing a comprehensive solution for urban traffic governance.

　　1.5.2. Market progress

　　During the reporting period, the company implemented the comprehensive management and control plan for the provincial boundaries of expressways, insisted on stabilizing the overload control through science and technology, mainly promoted the off-site law enforcement system for overloading, optimized the off-site software platform, and landed projects in Shandong, Chongqing and other places. The "Intelligent Monitoring Scene of Overloaded Vehicles at the Entrance of Beijing Expressway" adopted the company’s expressway entrance overload control system and was selected as "Zhifu Baijing" in the National Pilot Area of Artificial Intelligence Innovation and Application of the Ministry of Industry and Information Technology.

　　1.5.3. Progress in scientific research achievements

　　In terms of scheme output, based on the deep cultivation and accumulation in the intelligent transportation industry and core technologies such as dynamic weighing detection, traffic infrastructure monitoring and traffic digitalization, the company has launched a comprehensive digital bridge solution, which greatly improves the bridge structure health monitoring and early warning capabilities, enhances the traffic perception and emergency handling capabilities, strengthens the bridge health assessment and scientific maintenance capabilities, ensures traffic operation safety and road assets safety, and assists bridge managers to realize the optimal layout of comprehensive benefits of operation management and safety emergency. At the same time, the company also released new comprehensive solutions, such as in-service trunk highway digitalization scheme and highway intelligent operation and maintenance scheme, to improve the digitalization level of highway infrastructure and scientific decision-making, enhance highway safety guarantee capability, and further help traffic powers.

　　1.6. Strategic development of globalization

　　During the reporting period, with the goal of global strategic planning, the company focused on ITS products (LiDAR) and systems (WIM, C-V2X) and robotic lidar.

　　The company’s first overseas intelligent networked holographic intersection project (C-V2X) was successfully delivered to Bangkok, Thailand. The complex intersection situation in Bangkok was simulated in real time with digital twins, and channelized design suggestions and refined law enforcement were made to alleviate the extreme congestion and chaotic intersection situation in megacities and make travel safer and more convenient. As a revolutionary in ITS industry, the company’s ITS laser provides high-value data for the global digital road and successfully sells it to Mexico, Thailand, Bangladesh, Brazil and other places. The company’s robot lidar business focuses on the developed markets in Europe, America, South Korea and Japan. In the first half of 2023, the robot lidar products were successfully sold to markets in Germany, Switzerland, Japan, South Korea, India and other places, and delivered with head robot customers in Singapore, Canada and other places. The company has obtained OIML-R134 certification issued by NMI of Netherlands Metrology Institute, which means that the company’s WIM system has been recognized by the international metrology community. The company’s weighing products have been successfully sold to Indonesia, Saudi Arabia, Hungary and other places.

　　During the reporting period, the company filmed laser radar, intelligent networked holographic intersection and other related promotional videos, and comprehensively promoted products and solutions in the international market. At the same time, the company actively participated in international exhibitions, such as CES Consumer Electronics Show in the United States, HannoerMesse in Germany, Logimat in Stuttgart, IRC World Road Congress in Czech Republic, etc., and applied more lidar and ITS systems to the world.

　　2. Technology development and innovation

　　In terms of intelligent network connection, the company continues to invest in research and development of roadside intelligent sensing system, intelligent network connection cloud control platform and V2X communication terminal. While the original digital solutions have been continuously upgraded, the company has actively laid out and developed new scene application solutions such as expressway open test site, highway reconstruction and expansion digital security solution, intersection signal control solution and automatic driving direction holographic intersection solution, further enhancing the company’s four core capabilities of time-space integration digital base, holographic stereo sensing, real-time dynamic twinning and real-time interaction between vehicles and roads.

　　In terms of vehicle-road collaboration, the company focuses on vehicle-road collaborative autonomous driving technology, and continuously improves the vehicle-road collaborative data service capability and the full-stack closed-loop scheme, thus realizing the scale landing and industrialization of vehicle-road collaborative autonomous driving. Specifically, it includes roadside data service, L2+ networked vehicle roadside scene service, bicycle autopilot service and vehicle-road cooperative autopilot service. Through the complete data center platform architecture, the company has realized the closed-loop management from edge management, data collection and storage to intelligent application, and at the same time continuously expanded the data business requirements, thus mining the value of data elements and developing data products.

　　In terms of multi-line laser radar, the company’s on-board 128-line laser radar successfully passed the harsh winter extreme cold test, which enhanced the accuracy, cold durability and anti-interference performance of laser radar products in extremely cold environment. The test results showed the high reliability and stability of laser radar under extreme conditions, which was more conducive to improving the safety of driverless cars and further empowering driverless cars. At the same time, the company increased the R&D investment of silicon-based all-solid-state laser radar OPA, and improved its ranging range and long-distance research.

　　During the reporting period, the number of patents granted by the company continued to increase, and new patents were granted in intelligent networking, V2X, lidar, pre-installed ETC, ETC-RSU and dynamic weighing system. During the reporting period, 53 authorized invention patents, 50 authorized utility model patents, 3 authorized design patents and 19 software copyrights were added. The company’s patent applications increased by 63% compared with the same period of last year, and the patent applications in the fields of laser and intelligent networking increased by 71% compared with the same period of last year, accounting for 79% of the company’s semi-annual applications in 2023. By June 30, 2023, the company had 1,110 valid patents at home and abroad and 262 software copyrights. The valid patents include 306 invention patents, 732 utility model patents, 71 design patents and 1 patent authorized by the United States. Another 1,051 patents are under review, including 2 American patents, 2 European patents and 24 PCTs. Among them, there are 388 valid patents for lidar products and 390 patents under application; There are 119 valid patents and 443 patents under application for V2X intelligent networking.

　　3. Operation management

　　During the reporting period, the company continued to implement digital operation management, optimized the rules and plans for the use of funds, effectively controlled the net working capital, and maximized the input and output. The company promotes intelligent manufacturing technology and intelligent manufacturing system from three aspects: process control, equipment management and information application, so as to realize full digitalization, automation and intelligence of the production process and improve production efficiency and quality. The company continuously optimizes the industrial product supply chain, system integration supply chain and automotive electronic supply chain to realize the value transfer and value-added of the supply chain and enhance the overall core competitiveness of the company.

　　The company continued to implement information construction management and continuously improved the overall operating efficiency of the company. TMS transportation management system improves the management ability of logistics through various methods, and plans to go online in the second half of the year; BI report system (management data visualization) is combined with big data, data warehouse, data mining and data analysis to support data-driven decision-making. The second phase of PLM localization promotion project has started the internal demand investigation, and it is planned to go online in the second half of the year; Financial information construction (financial center+shared service) applies advanced software system and computer technology to implement modern management of financial information. At the same time, the company optimizes and perfects the processes of automotive electronic supply chain, system integration and industrial product supply chain.

　　4. Investment M&A and capital operation

　　During the reporting period, the company invested 15 million yuan to increase the capital of Shanghai Xuehu Technology Co., Ltd. (hereinafter referred to as "Shanghai Xuehu"). After the capital increase, the company held 5.0847% of the shares of Shanghai Xuehu. Intelligent networking business and laser radar business are the key directions of the company’s ecological strategic layout. Based on the company’s technical ability in the field of laser radar and Shanghai Xuehu’s technical ability in the field of FPGA, both parties are committed to developing programmable chips that can reduce MEC power consumption and improve adaptability. The self-developed 3D point cloud AI hardware acceleration engine and algorithm owned by Shanghai Xuehu can provide computing support for the company’s multi-source heterogeneous data fusion and further enhance the company’s comprehensive competitiveness in the fields of intelligent networking and laser radar. By complementing each other’s capabilities and sharing resources, the two sides will jointly cooperate in many fields such as intelligence at both ends of vehicles and roads to enhance the core competitiveness of their technologies and products.

Second, the core competitiveness analysis

　　(A) R&D strength and technological innovation advantages

　　The company is a high-tech enterprise recognized by Beijing Science and Technology Commission, Beijing Finance Bureau and State Taxation Administration of The People’s Republic of China Beijing Taxation Bureau. It has participated in the national torch plan project and actively participated in the formulation of industry standards. At the same time, it is also a communication member of the National Intelligent Transportation System Standardization Technical Committee, and has joined the working group on digital infrastructure and vehicle-road coordination, intelligent driving, etc., a member and governing unit of China Highway Society, a standing governing unit of China Geographic Information Industry Association and a governing unit of China Intelligent Transportation Association. Obtained Beijing Municipal Enterprise Science and Technology Research and Development Institution and Beijing Design Innovation Center issued by Beijing Science and Technology Commission, Beijing Enterprise Technology Center issued by Beijing Economic and Information Technology Commission and Beijing High-tech Industrial Design Center issued by Beijing Economic and Information Technology Bureau. Beijing Wanji Intelligent Networking Technology Co., Ltd., a wholly-owned subsidiary of the company, was awarded the "Innovative Small and Medium-sized Enterprises in Beijing" by Beijing Economic and Information Bureau.

　　After years of continuous R&D investment, the company has made a lot of technological innovations, and built an independent core intellectual property system in the fields of intelligent networking, lidar, automotive electronics, special short-range communication and dynamic weighing.

　　In the first half of 2023, the company’s patent applications increased by 63% compared with the same period of last year, and the patent applications in the fields of laser and intelligent networking increased by 71% compared with the same period of last year, accounting for 79% of the company’s semi-annual applications in 2023. During the reporting period, 53 authorized invention patents, 50 authorized utility model patents, 3 authorized design patents and 19 software copyrights were added. By June 30, 2023, the company had 1,110 valid patents at home and abroad and 262 software copyrights. The valid patents include 306 invention patents, 732 utility model patents, 71 design patents and 1 patent authorized by the United States. Another 1,051 patents are under review, including 2 American patents, 2 European patents and 24 PCTs. The company has continuously strengthened the intellectual property training for managers and R&D personnel, enhanced the awareness of intellectual property protection, and passed the certification of GB/T29490 intellectual property management system. The company fully understands the market development trend of this industry, and according to the overall development plan, it has formed the advantages of technology research and development through a series of differentiated competitive strategies leading manufacturers in the same industry, such as constantly improving product lines, stabilizing product performance, providing technical standards and independent innovation.

　　While developing products, the company actively participates in the formulation of technical standards, and a standard team composed of standardization personnel and R&D personnel participates in the formulation of a number of standards to provide technical support for standardizing market development. By June 30, 2023, the company had participated in 72 published standards, including 10 national standards, 5 industry standards, 2 local standards and 55 group standards. There are 195 standards in compilation, including 3 international standards, 27 national standards, 27 industry standards, 26 local standards and 112 group standards.

　　In the field of intelligent network connection, the company has been deeply involved in the field of intelligent network connection for many years. With the deepening understanding of the industry, the company deeply understands the traffic business and industry needs. Facing the complex urban traffic scenes, the company respects the people-oriented use needs according to the traffic characteristics of different cities, and puts forward scientific and systematic governance plans to help the intelligent transformation of urban traffic. Based on the advantages of artificial intelligence, multi-perception, edge computing, ubiquitous network, big data and other core technologies, the company has launched a vehicle-road collaborative solution for smart high-speed and smart cities through core independent products and platforms such as roadside intelligent perception system, intelligent networked cloud control platform and V2X communication terminal, and continuously strengthened the four core capabilities of space-time integrated digital base, holographic stereo perception, real-time dynamic twinning and vehicle-road collaborative real-time interaction. At present, based on the advantages of solution capability, the company has built a number of commercial landing projects in smart high-speed fields and smart cities, such as Guangzhou Qifu Tunnel, Shaanxi Qinling Tunnel Group, Hubei Ezhou Airport Smart Expressway, Zhengzhou Southwest Toll Station, Yuxiang Smart Expressway, Yunnan Zhaoyang West Ring Smart Expressway Project Digital Tunnel System, Suzhou 5G Vehicle Networking City-level Verification and Application Project, Chongqing Liangjiang New Area Digital Holographic Road Construction Project, etc. Because the projects can effectively meet the needs of customers, the landing projects have been highly recognized by customers. Besides,The company’s standard team has participated in 59 published standards in the field of intelligent networking, including 5 national standards, 4 industry standards, 49 group standards and 1 local standard. There are 176 standards under compilation, including 23 national standards, 26 industry standards, 26 local standards and 101 group standards. Among them, the Ministry of Industry and Information Technology organized a number of industry technical standards, such as the message layer test method of wireless communication technology of vehicle networking based on LTE, the network layer test method of wireless communication technology of vehicle networking based on LTE, the roadside unit technical requirements of direct communication system of wireless communication technology of vehicle networking based on LTE, and the message layer technical requirements of wireless communication technology of vehicle networking based on LTE.

　　In the field of lidar, the company adheres to the development route of independent research and development, and has many years of technical accumulation and reserve in optical structure, laser emission and receiving circuit design, and at the same time carries out multi-technical route layout of mechanical lidar, MEMS and OPA. The company’s hybrid solid-state 128-wire vehicle-class lidar is in the forefront of the industry in many dimensions such as field of view, detection distance and scanning frequency, which can meet the volume and performance requirements of small passenger cars. In terms of cutting-edge technology OPA, technical research has been continuously carried out to improve the range of ranging, and related projects have been supported by the National Natural Science Foundation, key projects of Beijing Science and Technology Commission, subversive technology research and development and achievement transformation projects in Zhongguancun. The company uses lidar technology to provide comprehensive solutions for specific fields or applications, including hardware equipment research and development, software algorithm development, data processing and analysis. According to different application requirements and scenarios, design and develop suitable lidar equipment, including scanning mode, measurement accuracy, data acquisition rate, etc., and provide software algorithm capability empowerment in combination with application scenario requirements. By June 30, 2023, the company had 388 valid patents on lidar products, covering applications in many fields such as autonomous driving, intelligent transportation, robots, etc. The lidar products independently developed have won awards such as "National Torch Plan Industrialization Demonstration Project" and "Beijing New Technology and New Products". The company participates in the development of standards in the field of laser radar.Two corporate standards, Laser Vehicle Detector for Traffic Information Collection (led by the company) and Vehicle Laser Radar Detection Method, have been released, and 16 standards are being compiled, including 2 international standards, 3 national standards, 4 industry standards and 7 corporate standards.

　　In ETC field, the company has continuously increased its R&D investment in ETC field for many years, and has successively overcome a series of technical problems. The company adopts multi-lane tandem technology based on satellite timing and wireless synchronization technology to completely solve the adjacent channel interference problem that plagues the ETC field. The ETC-RSU products developed by this technology have been successfully applied in the Hong Kong-Zhuhai-Macao Bridge. The company’s authorized invention patent "A multi-antenna combined working method and system under multi-lane free flow" won the third prize of Beijing Invention Patent Award. As the leader of domestic ETC multi-lane free flow technology, the company applied advanced technologies such as DBF phased array technology and spatial array positioning technology to ETC free flow system, and made major breakthroughs in key technologies such as RSU dynamic area control, ETC-OBU dynamic tracking and accurate positioning, ETC-RSU/OBU transaction scheduling, and ETC-OBU concurrent processing, which greatly improved the adaptability of multi-lane free flow products to high-speed passing cars and vehicle tracking. In recent years, the company has closely followed the national policy of canceling provincial toll stations on expressways, actively studied key technologies, and successively developed products such as "polysemous path identification system", "5.8GHz polysemous path composite pass card" and "free-flow segmented charging antenna", which have been widely applied in the national project of canceling provincial toll stations and achieved good social and economic benefits. At the same time, the company’s accurate restoration path charging system is highly integrated with laser-triggered camera capture technology, AI enhanced recognition technology, multi-dimensional matching technology and cloud path fitting technology.Effectively restore the real path of the vehicle and guide the toll collection, and further improve the operation level of the expressway toll collection system. According to the accurate judgment of the industry development trend and market demand, the company has increased its R&D investment in the pre-installed ETC-OBU in recent years, and applied the "filtering and shielding fitting technology" and "OBU self-diagnosis technology" to the pre-installed ETC-OBU, laying a product and technical foundation for the pre-installed business development.

　　In the field of dynamic weighing, the company has accumulated profound research and development experience in the field of dynamic weighing for many years. Through the analysis and testing of equipment usage data, it is the first to propose a technical solution combining data acquisition with algorithm logic, which makes the company’s dynamic weighing technology at the international leading level. The company innovatively integrates dynamic weighing equipment, sensing equipment, etc. to develop an off-site law enforcement system for over-limit and overload, and realizes sales in many regions. In the field of overload control information networking management platform, the company uses big data technology to develop overload control platform system networking highway overrun detection sites and off-site law enforcement systems, analyze and mine the collected traffic information, and provide valuable in-depth information for traffic decision makers and participants.

　　(B) the advantages of industrialization capacity

　　The company has been deeply involved in the intelligent transportation industry for 29 years, and is committed to breaking through the tradition and pursuing innovation in the directions of intelligent transportation, smart cities and smart cars. From equipment manufacturers to solution providers, we have accumulated rich experience in the system integration ability of solutions and in the research, development, design and manufacturing of intelligent transportation equipment. Excellent solutions are inseparable from the empowerment and support provided by excellent products. On the one hand, the company is familiar with the requirements of the transportation industry for product characteristics and has formed a process accumulation. On the other hand, the company has accumulated rich experience in product whole process management and quality control. The company has built a 42,500-square-meter intelligent manufacturing production base in Shunyi, Beijing, and built a 10,000-class/100,000-class dust-free workshop for the production and testing of V2X units, multi-line lidar, ETC products and pre-installed ETC-OBU, and the operation of the data center of the intelligent network. The company’s digital workshop has been recognized by Beijing Economic and Information Bureau in 2022. The company’s intelligent manufacturing production base introduces the world-leading ERP system (SAP), production management system (MES) and warehouse management system (WMS), and is equipped with a number of high-speed SMT patch lines and fully automatic assembly test lines, which can produce PCBA and products of vehicle specifications and meet the business needs of both ends of the vehicle. Through the real-time data collection of factory management system, multi-terminal and multi-role real-time collaboration, big data visualization and deep learning intelligent decision-making, the company’s production quality control ability is further improved.

　　(C) Advantages of marketing network channels

　　The company has set up a matrix marketing management mode, a product division, which is responsible for coordinating the marketing work of the product line. At the same time, it has set up sales branches or agencies according to the region, taking the branch as the fulcrum to cover the regional sales work, ensuring the seamless network coverage of the market and continuously infiltrating products and services into the coverage area. The company has marketing agencies in Shanghai, Wuhan, Chongqing, Guangzhou, Shenyang, Nanjing and other regions. At the same time, the company has established an efficient global sales team spanning three continents and six countries, which adopts matrix marketing management mode and consists of product department and sales department. The company has sales representatives all over the world, including Indonesia, Thailand, Russia, Mexico and Bangladesh. The company attaches great importance to the construction and training of marketing network echelon, and each marketing organization has sales managers and deputy managers, and strives to cultivate experienced sales business backbones.

　　(D) Advantages of professional services

　　Each product line of the company is equipped with professional technicians such as technical service and quality control, who can provide technical support to customers before and after sale, provide customers with professional services such as product introduction, scheme design, product installation and testing, and continuously and timely give feedback to the company according to users’ usage. Through the perfect technical service, the company wins the trust of users and enhances the adhesion with customers.

　　The company set up a technical service center in the headquarters to coordinate the customer service management in all regions and realize business collaboration with quality management departments and business divisions. The company has established a customer service system covering the whole country and has the service ability to respond to customers quickly.

　　(5) Qualification advantages

　　The company has Grade B surveying and mapping qualification, construction enterprise qualification and safety production license. Passed ISO9001 quality management system certification, ISO27001 information security management system certification, ISO/IEC20000-1 service management system certification, IECQQC080000 hazardous substance process management system certification, ISO14001 environmental management system certification, ISO45001 occupational health and safety management system certification, ANSI/ Esds 20.20: 2014 & IEC 61340-5-1: 2016 electrostatic protection management system, GB/T27922 national commodity after-sales service standard certification, ITSS information technology service standard conformity certificate and information security service qualification certification. It has passed the certification of IATF16949 automobile parts quality management system necessary for automobile electronic suppliers, and obtained the five-level certification of CMMI_DEVML5 capability maturity and CNAS laboratory certification. These qualifications of the company have laid a foundation for market development and maintenance. In addition, the ETC product market implements the qualification access system, and the company’s related products have the test report of ETC products issued by Beijing Zhongjiao Guotong Intelligent Transportation System Technology Co., Ltd. The market of dynamic weighing products is subject to legal metrology management, and the related products of the company have obtained the type approval issued by the Bureau of Quality and Technical Supervision.

atmospheric pollution

What is it?

Air pollution is a phenomenon that some substances enter the atmosphere due to human activities or natural processes, showing sufficient concentration for enough time, and thus endangering human comfort, health and welfare or the environment.

Air pollutants enter the atmosphere (input) from man-made or natural sources, participate in the circulation process of the atmosphere, and are removed (output) from the atmosphere through chemical reactions, biological activities and physical sedimentation after a certain retention time. If the output rate is less than the input rate, it will be relatively concentrated in the atmosphere, resulting in an increase in the concentration of a substance in the atmosphere. When the concentration rises to a certain extent, it will directly or indirectly cause acute and chronic harm to people, organisms or materials, and the atmosphere will be polluted.

1. Sources of air pollutants

(1) Natural sources of air pollution

Volcanic eruption: H2S, CO2, CO, HF, SO2 and volcanic ash are emitted.

Forest fire: CO, CO2, SO2, NO2, HC, etc. are emitted.

Natural dust: wind sand, soil dust, etc.

Forest plant release: mainly terpene hydrocarbons.

Wave droplet particles: mainly sulfate and sulfite.

In some cases, natural sources are more important than man-made sources. According to relevant statistics, 93% of global nitrogen emissions and 60% of sulfur oxide emissions come from natural sources.

(2) Man-made pollution sources

The atmospheric pollution source usually refers to the source of pollutants transported to the atmosphere by human activities. Man-made pollution sources of the atmosphere can be summarized as the following four aspects:

Fuel combustion: the combustion process of fuels (coal, oil, natural gas, etc.) is an important source of pollutants to the atmosphere. The main component of coal is carbon, and it contains hydrogen, oxygen, nitrogen, sulfur and metal compounds. In addition to a large amount of smoke and dust, carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxides, organic compounds, smoke and dust and other substances are also formed during the combustion process.

Emissions from industrial production processes: such as hydrogen sulfide, carbon dioxide, sulfur dioxide and nitrogen oxides emitted by petrochemical enterprises; Sulfur dioxide, nitrogen oxides and dust containing heavy metal elements discharged by nonferrous metal smelting industry; Fluoride emitted by phosphate fertilizer plants; Sulfur dioxide, nitrogen oxides, hydrogen chloride and various acidic gases discharged from acid-base salinization industry; The iron and steel industry discharges dust, sulfur oxides, cyanide, carbon monoxide, hydrogen sulfide, phenol, benzene and hydrocarbons in the process of ironmaking, steelmaking and coking. The composition of pollutants is closely related to the nature of industrial enterprises.

Emissions during transportation: The tail gas emitted by automobiles, ships and airplanes is the main source of air pollution. The exhaust gas emitted by internal combustion engine contains carbon monoxide, nitrogen oxides, hydrocarbons, oxygen-containing organic compounds, sulfur oxides and lead compounds.

Emissions from agricultural activities: when pesticides are applied in the field, some pesticides will escape into the atmosphere in the form of dust and other particles, and those remaining on crops or adhering to the surface of crops can still volatilize into the atmosphere. Pesticides entering the atmosphere can be absorbed by suspended particles and transported to various places with the airflow, causing atmospheric pesticide pollution. In addition, there are straw burning.

China has enacted "People’s Republic of China (PRC) Environmental Protection Law" and formulated national and regional "waste gas emission standards" to reduce air pollution and protect people’s health.

2. Harm of air pollution

(1) Harm to human body

The harm of air pollutants to human body is various, mainly manifested in respiratory diseases and physiological dysfunction, as well as the irritation of mucous membranes such as eyes and nose, which is a chronic factor causing asthma in the elderly. Insufficient lung qi leads to physical decline.

The influence of air pollution on human body is firstly uncomfortable, then there is a reversible reaction in physiology, and then there are acute harmful symptoms. The harm of air pollution to people can be roughly divided into three types: acute poisoning, chronic poisoning and carcinogenesis.

1. Acute poisoning

When the concentration of pollutants in the air is low, it usually does not cause acute poisoning, but under some special conditions, such as special accidents in the production process of factories, a large number of harmful gases leaking out, and sudden changes in external meteorological conditions, it will cause acute poisoning of people. For example, methyl isocyanate leaked from Pabor pesticide plant in India directly harmed human body, with 2,500 people killed and more than 100,000 injured.

2. Chronic poisoning

The chronic toxic effect of air pollution on human health is mainly manifested in the phenomenon that the prevalence rate increases after pollutants are exposed to human body in low concentration for a long time. The incidence of lung cancer among urban residents in China is very high, the highest of which is in Shanghai, and the respiratory diseases of urban residents are significantly higher than those in suburbs.

3. Carcinogenesis

This is the result of long-term influence, because pollutants act on the body for a long time, damaging the genetic material in the body and causing mutation. If the germ cells mutate, all kinds of abnormalities will appear in the offspring, which is called teratogenicity. If the genetic material and genetic information of organism cells suddenly change, it is also called mutagenicity; If the tumor is induced, it is called carcinogenesis. The "cancer" referred to here includes benign tumors and malignant tumors. Carcinogens in the environment can be divided into chemical carcinogens, physical carcinogens and biological carcinogens. The process of carcinogenesis is quite complicated, generally including initiation stage and growth promotion stage. Factors that can induce tumors are collectively referred to as carcinogenic factors. Tumors caused by long-term exposure to carcinogenic factors in the environment are called environmental tumors. Air pollution will reduce people’s life span.

(2) Harm to plants

Air pollutants, especially sulfur dioxide and fluoride, are very harmful to plants. When the concentration of pollutants is very high, it will cause acute harm to plants, causing damage to the surface of plant leaves, or directly causing leaves to wither and fall off; When the concentration of pollutants is not high, it will cause chronic harm to plants, make the leaves of plants fade green, or there are no harmful symptoms on the surface, but the physiological functions of plants have been affected, resulting in the decline of plant yield and deterioration of quality.

(3) Harm to the climate

Air pollutants can also affect weather and climate. Particulate matter reduces atmospheric visibility and reduces the amount of solar radiation reaching the ground. Especially in large industrial cities, the sunlight is 40% less than normal when the smoke is not scattered. The pollutants in the upper atmosphere, such as nitrogen oxides, hydrocarbons and chlorofluorocarbons, decompose ozone in large quantities, causing the "ozone hole" problem, which has become the focus of global attention.

The increase of greenhouse gases such as carbon dioxide will lead to the warming of the earth’s atmosphere and the increase of global weather disasters. Another example is the increase of aerosol particles such as smoke and dust, which will increase atmospheric turbidity, weaken solar radiation and affect the long-wave radiation of the earth, which may lead to abnormal weather and climate.

(1) Reduce the amount of solar radiation reaching the ground: A large number of smoke particles discharged into the atmosphere from factories, power stations, automobiles and household heating equipment make the air very turbid, which blocks the sunlight and reduces the amount of solar radiation reaching the ground. According to observation and statistics, in the days when the smoke is not scattered in large industrial cities, the amount of direct sunlight hitting the ground is reduced by nearly 40% compared with the days without smoke. In cities with serious air pollution, it will lead to poor growth and development of people, animals and plants due to lack of sunlight every day.

② Increasing atmospheric precipitation: many of the particles discharged from large industrial cities have the function of condensation nuclei of water vapor. Therefore, when there are other precipitation conditions in the atmosphere, there will be precipitation weather. In the downwind areas of big industrial cities, there is more precipitation.

③ Acid rain: Sometimes, the rain falling from the sky contains sulfuric acid. This kind of acid rain is formed by the oxidation of sulfur dioxide, a pollutant in the atmosphere, to form sulfuric acid, which falls with the precipitation in nature. Sulfuric acid rain can destroy large areas of forests and crops, corrode and break paper products, textiles and leather products, deteriorate metal antirust coatings and reduce their protection, and corrode and pollute buildings.

3. How to prevent and control air pollution in life

1. Don’t litter; Travel by bus and subway as much as possible, reduce the use of private cars, and buy new energy vehicles; Participate in greening activities such as planting trees; Private cars are equipped with tail gas treatment devices, and lubricating oil is used to fully burn fuel and reduce harmful gas emissions.

2. On holidays, instead of setting off fireworks and firecrackers, electronic firecrackers can be used instead, no outdoor barbecue, no burning of straw and leaves, and less coal burning to reduce air pollution.

3. Reduce the use of freon-containing air conditioners and refrigerators, and suggest purchasing new energy-saving products.

4. Reduce going out in foggy weather (according to relevant explanations, Ozone refers to ozone, while PM2.5 refers to fine suspended particles with a diameter of less than 2.5 microns, also known as particles that can enter the lungs. This suspended particle is a "health killer" in the air. Extensive damage to respiratory system, heart and blood system).

5. Wear a mask when going out (factors such as mask material, service life and technical level are the criteria for defining the quality of masks. If consumers have no special needs, they don’t have to snap up "concept masks" marked with various functions).

6. It is everyone’s responsibility to prevent and control air pollution. It is the right given to every citizen by law to report and accuse acts that pollute and destroy the environment. When encountering uncivilized acts that pollute the atmosphere, actively report them, jointly safeguard the beautiful blue sky and build a happy Zhuzhou!

Source: Baidu Encyclopedia

　　Kimi, the popular big model, once went down, and the dark side of the moon has been expanded five times in a row.

　　Technology giants have deployed AI PC products, which is expected to become the mainstream of the PC market.

　　Demand in the tire industry continues to improve, and () announced an increase in product prices.

　　The Ministry of Commerce responded that "the United States is considering sanctions against China chip companies related to Huawei", saying that China has always opposed the politicization and weaponization of economic, trade, scientific and technological issues, and will take necessary measures as appropriate to safeguard the legitimate rights and interests of China enterprises.

　　The General Administration of Market Supervision and other six departments issued the Notice on Strengthening the Food Safety Supervision of Precast Vegetables to Promote the High-quality Development of the Industry, which clarified the definition and scope of Precast Vegetables, and preservatives were not allowed to be added in the production process.

　　The National Development and Reform Commission said that it will speed up the construction of a comprehensive service platform for the development of the private economy, and steadily and accurately promote the resolution of problems and demands reflected by local private enterprises.

　　According to the report of the Central Finger Research Institute, in 2023, the market share of the top 100 real estate enterprises was 46.2%, a slight increase of 0.4 percentage points compared with 2022, and the market share of central state-owned enterprises continued to increase.

　　Shenzhen will promote the high-quality development of ultra-high-definition video display industry cluster, and will support key core technology research around 8K video recording equipment, CMOS image sensor, ultra-high-definition SoC chip and photoresist.

　　On March 21st, the world’s first local train with hydrogen energy independently developed by CRRC Changchun Railway Passenger Car Co., Ltd. successfully reached the speed test run, marking a new breakthrough in the application of hydrogen energy in rail transit.

　　Lei Jun announced that Wuhan Optics Valley Xiaomi Automobile Delivery Center is ready; Delivery centers and sales stores in 29 cities across the country will receive visitors from the 25th.

　　The person in charge of the LE (Life Service) business of Meituan said that door-to-door service has supported a trillion-dollar market. In 2023, the transaction volume of life services (including housekeeping, washing and maintenance) on Meituan doubled year-on-year.

　　Apple released the advertisement of "Briefing Experience Specialist" for the sales team in China, which was mainly responsible for the sales and business development of Vision Pro.

　　On the 21st, the international gold price exceeded $2,200 per ounce, a record high. Huaan Fund believes that the Fed’s interest rate meeting released the "dove" signal, and the market’s expected probability of interest rate cuts in June increased from 60% to 75%, which strengthened the pricing logic of gold.

　　There is a new share subscription today: () code 001389, the issue price is 17.43 yuan, the price-earnings ratio is 26.32 times, and the subscription limit is 11,000 shares, mainly engaged in printed circuit boards.

　　Kimi, the hot big model, once went down.

　　On March 21, the App and applet of Kimi, a large model application of the dark side of the moon, once appeared to be unable to be used normally. The dark side of the moon announced that since the 20th, Kimi’s system traffic has continued to increase abnormally, and the trend of traffic increase far exceeds the expected plan. The company has expanded its capacity five times, and the reasoning resources will continue to expand with the traffic to try to carry the growing number of users.

　　Guojin Securities believes that the large model is constantly upgrading, driving the demand for AI hardware to continue to be strong. Judging from the recent performance and guidance of relevant companies, the demand for GPU, ASIC, AI server, optical module, switch and so on has maintained rapid growth.

　　() It is believed that the current restrictions on the supply of high-end GPU in the United States are becoming stricter, and domestic AI computing chip manufacturers are welcoming a golden period of development. Haiguang DCU, CAMBRIAN Siyuan series and Huawei Shengteng series special AI chips are expected to accelerate the realization of domestic substitution and enter the high-speed growth period.

　　Technology giants have deployed AI PC products.

　　On March 21st, AMD held the AI PC Innovation Summit in Beijing, attended by Lenovo Group, Asus Computer, Zhizhi AI, Zhipu AI, Tongyi Qianwen, Baichuan Intelligent and other companies. AMD said that it is promoting innovations outside the chip, including an open end-to-end software ecosystem that enables its ISV partners to use thousands of AI models; By the end of 2024, more than 150 ISVs are being promoted to develop Ryzen AI as planned. Lenovo Group also announced that it will release new AI PC products at Lenovo Innovation and Technology Conference on April 18th.

　　The organization believes that AI PC can realize AI functions under offline conditions, and has many functions such as natural language processing and image recognition, which is expected to become a key tool to improve productivity. AIGC will usher in intensive landing in the office field, and more content can be expected in the future. The White Paper on AI PC Industry predicts that in the PC market in China, the assembly proportion of AI PC in new machines will rise rapidly in the next few years, reaching 85% in 2027.

　　Demand in the tire industry is improving, and product prices are rising.

　　Linglong Tire said on the interactive platform that in view of the recent continuous rise in raw material prices, the company decided to raise the prices of all products of all brands of TBR and PCR in the domestic retail market by 2% to 3% from April 1, taking into account various factors such as market demand and production cost.

　　According to the industrial chain data, as of the week of March 14th, the starting load of all-steel tires of tire enterprises in Shandong was 70.37%, 1.87 percentage points higher than the same period of last year; The starting load of semi-steel tires was 79.67%, 6 percentage points higher than the same period last year. In addition, the downstream automobile industry achieved double growth in production and sales in the first two months as a whole, and the sales of new energy vehicles continued to grow, which all drove the demand for tires. () It is pointed out that in the medium and long term, the advantage of high cost performance of China tires is expected to be maintained.

　　○ SuperMap Software cooperates with Taizhou Data Industry Group.

　　() Signed a strategic cooperation framework agreement with Taizhou Data Industry Group. The two sides will explore the cooperation mode of joint operation and carry out the construction of digital intelligence infrastructure related to "(spatial information x data elements) x" around the cooperation contents such as data element circulation, scene demand application and technology joint development. Cooperation around low-altitude economic perception is also one of the important contents of this strategic cooperation.

　　○ Wanma Technology Subsidiary cooperates with Langge Technology.

　　() Shanghai Youka, a subsidiary, signed a strategic agreement with Langge Technology, which will establish a strategic partnership in the closed-loop field of autopilot data based on mutual understanding and recognition of the strategic planning, business positioning and development direction of the closed-loop field of autopilot data, and promote cooperation projects in line with the common interests of both parties in stages.

　　○ Baowu Magnesium signed a cooperation agreement on integrated die casting.

　　() Chongqing Boao Mg-Al Metal Manufacturing Co., Ltd., a subsidiary, signed a development agreement with an automobile manufacturer, and the company will jointly develop ultra-large magnesium alloy integrated die castings with this customer.

　　○ Baolong Technology won the designation of air suspension system product project.

　　() Received the Notice of Fixed Point from a new energy automobile head brand OEM in China, and selected the company as the spare parts supplier for the front and rear air springs of its new project. The life cycle of the project is 4 years, and the total amount of the life cycle exceeds 640 million yuan. It is expected that mass production will begin in October 2025.

　　○ Taihua New Materials intends to repurchase shares.

　　() It is planned to buy back shares at a price of 50 million to 100 million yuan, and the repurchase price shall not exceed 13.93 yuan/share.

　　○ Shandong Haihua’s performance in the fourth quarter increased greatly.

　　() The net profit returned to the mother in 2023 was 1.044 billion yuan, down 5.78% year-on-year. Among them, the net profit returned to the mother in the fourth quarter was 379 million yuan, up 533.05% year-on-year.

　　Billboard

　　Three institutions buy Shennong Group

　　According to the public trading information on March 21st, () won the seats of three institutions and bought a total of 99,657,400 yuan, accounting for 32.57% of the total turnover of the whole day.

　　Everbright Securities said that from the perspective of expansion speed, the company maintained a steady strategy. Under the condition of continuously increasing the proportion of foster care, the target for slaughter in 2024 and 2025 was 2.5 million and 3.5 million. From a regional perspective, the company is currently expanding its layout outside the province to Guangdong and Guangxi, and the effect of reducing costs and raising prices is obvious. From the perspective of industrial structure, the company has long attached importance to the integrated layout of industrial chain, and the upstream feed plate supports the production demand of aquaculture. By the end of 2024, the production capacity is expected to exceed 1.5 million tons, and the downstream slaughtering and processing capacity of 2.5 million heads will be stable for a long time, which will effectively undertake the expansion demand of the company.

　　○ () said that in recent years, the company has focused on developing innovative business with open source HarmonyOS and open source Euler as the main business, and the new generation of artificial intelligence hub platform AIRuns has been gradually commercialized in the fields of finance, electric power and robotics. At the beginning of January this year, the company and Huawei signed the HarmonyOS Talent Ecosystem Service Cooperation Framework Agreement. In the future, the company will continue to provide low-level software and hardware capability support and empowerment innovation for various products and solutions related to HarmonyOS’s ecology, and help HarmonyOS’s ecological development and prosperity.

　　○ () said that at the end of last year, the company successfully won the bid in all nine blocks of the sixth phase frame of mechanical seal, and won the first place in eight blocks and the second place in one block. The company’s international business orders have increased significantly in recent years, and the brand awareness and influence in the international market have been continuously improved. In the future, with the further enhancement of the ability to obtain orders, international business will be the most important part of the company’s business growth.

　　○ () said that the company continued to optimize the layout of production lines last year and its performance grew steadily. At present, the company’s orders in hand and overall production and operation are in good condition, and the visibility of orders is about one quarter. In the future, the company will unswervingly focus on the main business of professional stage lighting equipment, promote business development with technological innovation, and expand customer base according to industrial direction.