CCTV News:This morning (August 12th), Beijing time, in the women’s 100m freestyle final of the Rio Olympic Games, American Manuel and Canadian Olesia tied for the championship with a time of 52.70 seconds.

　　　　　　 According to the rules of swimming competition formulated by the International Swimming Federation, if the percentile seconds of athletes’ performance are still the same, the rankings are tied. Accurate enough to get the same results, it is also doomed that these two people must be "together" on the podium!

　　　　　　 △ American player Manuel (left) and Canadian player Olesia, who was also the first post-00 player to win a gold medal in the Olympic Games. (After seeing 00, I have braved the wind and waves to win the Olympic gold medal. After 80, Xiaobian said that there is an unspeakable taste in my heart …)

　

　　　　　　 However, the problem also came. At the time of awarding prizes, the podium also presented some different scenes … …

　　　　　　 First of all, you can’t see the runner-up on the podium.

　　　　　　 According to the rules, if there is a tied champion, the final ranking will automatically skip the runner-up and go directly to the third place. So on the podium, you will only see three people — — Two tied champions, and Sweden’s Sjostrom who won the third place.

　　　　　　 Second, how to hang the national flag?

　　　　　　 According to our general logic, this problem should be hung in parallel. However, there are exceptions. If there is not enough space for hanging poles, the national flag of the tied champion country will be hung up and down. For example, this time is

　　　　　　 As for why the American flag is on the top and Canada is on the bottom, it should be arranged alphabetically according to the players’ surnames. American player Simone Manuel’s surname begins with "M", while Canadian player Penny Oleksiak begins with "O". In the English alphabet, M comes before O.

　　　　　　 However, from the picture, as the champion of Canada, the position of the national flag is already lower than that of the third runner-up Sweden. I wonder if the Canadian national flag will have some shadow areas in its heart at this time. ……

　　　　　　 Third, how to play the national anthem?

　　　　　　 This problem is also a problem that netizens are very worried about after the emergence of the tied champion today.

　　　　　　 There are several ways to solve this problem in general international competitions: first, like the sorting of national flags, they are sorted by the initials of athletes’ surnames and played in turn; The second is to let the players toss a coin to decide which country’s national anthem to play first.

　　　　　　 This time, we adopted the first method, playing star-spangled banner first and then Canadian.

　　　　　　 What are the "tied champions" in previous Olympic Games?

　　　　　　 In fact, it is not the first time that there has been a tie champion in the Olympic swimming competition. In the 1984 Los Angeles Olympic Games, Nancy Hogshid and Kelly Sternseff of the United States tied for the gold medal in the 100-meter freestyle. In the 2000 Sydney Olympic Games, Gray Hall Jr. and Anthony Irwin of the United States tied for the 50-meter freestyle champion.

　　　　　　 However, when it comes to the "big family" who tied for the championship at the Olympic Games, gymnastics is the only one. For the first time in the history of the Olympic Games, it was born in the gymnastics field of the London Olympic Games in 1948, and it was also a three-person tied champion!

　　　　　　 At that time, three Finnish players in the men’s pommel horse had the same points and tied for the gold medal. This three-person tie for the championship has only appeared twice in the Olympic history of more than 100 years. Another time, at the Seoul Olympic Games in 1988, Bilo Zelcev from the Soviet Union, Hungarian Bolkai and Bulgarian Glascoff stood on the highest podium of the men’s pommel horse with a score of 19.950.

　　　　　　 Chinese gymnasts are also the leading role in the tied championship. In the 1984 Los Angeles Olympic Games, Li Ning shared the pommel horse and rings with other countries, while Ma Yanhong shared the women’s uneven bars gold medal with American rivals.

△ Li Ning

　

△ Ma Yanhong

　　　　　　 In addition to gymnastics, weightlifting has been tied for the championship twice without carefully measuring the weight of the players themselves. In Amsterdam Olympic Games in 1928, weightlifting was divided into snatch and clean and jerk for the first time. As a result, in the contest of 67.5 kg, German Hoerbiger and Austrian Haas scored exactly the same, and their initial estimated weight was the same, so they could only be tied for the championship. Six years later, it was another contest at this level. Austrian Finn and Egyptian Mesbach shared the gold medal again.

(This article Source: CCTV News Comprehensive, Jiefang Daily, titan sports)

　　CCTV News:Kim Jong-un, the top leader of North Korea, ended his visit to Russia on April 26th and returned to North Korea. The North Korean media reported on Kim Jong-un’s visit to Russia for several days. It is widely believed that Kim Jong-un’s first meeting with Russian President Vladimir Putin during his visit to Russia achieved positive results.

　　Kim Jong-un concluded his first "Pujin Club" visit to Russia and achieved positive results.

　　On April 23rd, Rodong Sinmun, the organ newspaper of the Central Committee of the Workers’ Party of Korea, released the news that Kim Jong-un, the top leader of North Korea, was about to visit Russia at the invitation of Russian President Vladimir Putin. Since then, reports on Kim Jong-un’s visit to Russia and his meeting with Putin have been released for three consecutive days.

　　Kim Jong-un arrived in Vladivostok on April 24, and reviewed the Russian military band and honor guard at the railway station that day. On April 25th, Putin and Kim Jong-un met at the Far Eastern Federal University in Vladivostok. On April 26th, Kim Jong-un visited the Memorial Square of the Battle Honor of the Russian Pacific Fleet and presented a flower basket to the monument. In the afternoon, I left Vladivostok Railway Station by special train.

　　The first meeting with Putin on April 25 is undoubtedly the top priority of Kim Jong-un’s visit to Russia. Including the one-on-one meeting and the enlarged meeting, the meeting between Kim Jong-un and Putin lasted about three and a half hours, and the one-on-one meeting lasted nearly two hours, twice the original time.

　　According to Korean Central News Agency’s report on April 26th, during the meeting, the two sides had an in-depth exchange of views on inheriting and developing the traditional friendship between the two countries and further developing bilateral cooperation in various fields, and reached a satisfactory consensus. In view of the current DPRK-US relations and the form of the peninsula, Kim Jong-un said that the second DPRK-US summit held in Vietnam had brought the situation on the peninsula to a deadlock because of the unilateral non-goodwill attitude of the United States. Peace and security on the Korean peninsula depend entirely on the future attitude of the United States, and North Korea will be prepared for everything possible.

　　On the same day, Putin also stressed that relevant parties to the peninsula issue should respect each other’s interests and build mutual trust in stages. Following international law and abandoning the "fist method" is the key to solving the peninsula problem and other problems. It is widely believed that although the first "Pujin Club" has not released the outcome document, it is of great symbolic significance and is beneficial to providing new assistance for promoting the settlement of the peninsula issue.

　　Trump stressed progress on the DPRK-related issues.

　　When answering a reporter’s question on April 26, US President Trump said that the US has done a good job on the North Korean issue and has made great progress. He once again stressed that he has a good relationship with Kim Jong-un, the top leader of North Korea. In response to Russian President Vladimir Putin’s statement on the Korean Peninsula issue on April 25, Trump welcomed it and said that he was looking forward to reaching an agreement with the DPRK.

　　The Ministry of Education recently issued a "sleep order", which made clear requirements for the bedtime of primary and secondary school students, causing great concern among parents. At present, the New Deal has entered the implementation stage. How will the school arrange the schedule? Will the teacher leave less homework for the students? How should parents urge their children to go to bed on time?

　　Question 1

　　Do children still need to get to school early?

　　For school hours, many parents are very entangled. On the one hand, they hope that their children can sleep more in the morning, on the other hand, they are worried that the teacher will delay their study in advance. After the "Sleep Order" issued by the Ministry of Education, will the school make overall arrangements for work and rest, and do children still need to get to school early?

　　Reasonable arrangement of work and rest to ensure students’ sleep time

　　Ding Lan, President of Puxun School in Beijing No.4 Middle School.

　　The primary and secondary school stage is the key period for students to grow up healthily and develop in an all-round way. Strong physique, happy mood and good living habits are all closely related to adequate sleep. The hippocampus of the brain is the key area of learning and memory. The more children get enough sleep, the larger the hippocampus related to memory and emotion, and the better the brain development. Therefore, adequate sleep is the premise for children to study efficiently and develop physically and mentally healthily.

　　In response to the request of the Ministry of Education, our school issued a letter to parents and friends at the first time, informing parents about students’ work and rest time and overall management of homework, reaching a consensus with parents, and jointly promoting autonomous management. At the same time, we have actively explored and tried to guide students to manage their sleep scientifically and promote their scientific work and rest. One of the important contents is to arrange students’ daily work and rest reasonably.

　　From the beginning of the school, the school enrollment strictly abides by the nearest admission policy. At present, most students in grades one to nine in our school live in the neighborhood around the school, and it takes about 5 to 15 minutes to walk to school. According to the requirements of epidemic prevention and control, the school has formulated a schedule for going to and from school in batches. Students in grades seven to nine enter school at 7: 30 in the morning, students in grades five and six at 8: 00 in the morning, and students in grades one to four at 8: 15 in the morning. The first class of grades seven to nine starts at 8: 00 in the morning, and grades one to six start at 8: 20 in the morning. During recess and noon, according to the characteristics of students of different ages, each class adheres to the principle of combining work with rest and moderate exercise, and independently arranges the time and content of recess. Students can have lectures, lunch breaks, physical exercises, physical exercises, group activities, etc., to ensure students’ rest time and relax. School is also carried out in batches, and an efficient second study time is created for students. Students in need can study at school until 5: 30 pm.

　　In order not to increase the burden on students, our school requires all teachers to ensure the quality of the classroom, to be efficient in the classroom, and to fully implement the "burden reduction and quality improvement"; Optimize the quality and duration of homework, carry out hierarchical design of homework in senior grades, reasonably control the total amount of students’ written homework, and improve the effectiveness of homework; Take the class as a unit to coordinate the homework. If the total amount of homework is overtime, the class teacher can exercise the right to delete it. At the same time, communicate with parents in time to try to avoid the phenomenon that schools reduce burdens and families increase burdens; The school guides students to use electronic products reasonably, and does not arrange homework in the form of online completion and online punching. In addition to English listening and speaking practice for 30 minutes twice a week, students can do homework without using mobile phones.

　　In addition, the school also explores the course of sleep management, and incorporates scientific sleep publicity and education into the course teaching system to eliminate the phenomenon that students do not know enough about sleep problems and pay attention to them. Recently, the school has begun to try to popularize scientific sleep knowledge through physical education and health courses, mental health education, class team activities, etc., to remind students to relax and study moderately, and to help students improve their understanding of sleep management from thoughts and actions.

　　Question 2

　　Can the teacher leave less homework?

　　Parents often complain that teachers leave too much homework, which causes children to write homework until late at night every day, and they are seriously deprived of sleep. They are listless in class the next day, and some children even fall asleep in class. Can the teacher improve in this respect and leave less homework?

　　Homework should be efficient and innovative.

　　Zhao Yihong, a teacher at Beijing No.5 Middle School Branch.

　　For a long time, the voice of "reducing the burden" for primary and secondary school students is very high. One of the important contents is to hope that teachers will give students less homework. As a class teacher and math teacher, I think students should be given proper and efficient homework to reduce mechanical brushing. At the same time, students also need to improve the efficiency of attending classes, so that they can write their homework with ease and not spend a lot of time.

　　The reason why the school keeps homework is to consolidate the knowledge learned in class, so that students can really master the knowledge points. Therefore, experienced teachers pay great attention to grasping the "degree" when they leave their homework, and will not win by quantity alone. Especially in a subject like mathematics, it is not effective to rely solely on rote memorization. Mastering ideas and methods is the right way. Usually, the homework I leave for students every day can be completed in about 40 minutes. Sometimes it is several big questions, and sometimes it is a paper. If students have questions that they can’t do, I don’t even want them to use software to search for answers and allow their homework to be "blank", because as long as they think hard, even if they can’t, they can understand it quickly after listening to the teacher’s explanation the next day.

　　I have done some research on students’ homework. Take the math course as an example. Usually, students who write fast can finish it in less than 20 minutes, while students who write slowly can really put it off until the early morning of the next day. Analysis, there are many reasons why homework is written after midnight. Some students have bad study habits and like to write while playing, dragging their feet; Some students don’t like the learning content arranged by their parents, and deliberately delay "dawdling" until their parents sleep first and then enjoy their free time; Other students are absent-minded in class and don’t listen to the lecture. As a result, they can’t do their homework at all, so they can only "get on the sedan chair and prick their ears now" and stay up late to make up for it. Of course, it does not rule out that there is indeed a lot of homework that day. For example, before the mid-term and final exams, teachers in all subjects will issue review materials, and there is a relatively large amount of homework.

　　In order to effectively reduce students’ academic burden, our school requires teachers to improve the teaching efficiency of each class, and at the same time, constantly innovate the form of homework, so that students can truly become the main body of learning. To this end, in addition to assigning traditional forms of homework, I will also assign homework to students. Specifically, it is to let students speak out the learning contents of each chapter, including definitions, formulas, key exercises and so on. By speaking with the mouth, gesturing with the hands, listening with the ears, and drawing with strokes, students can increase the retention rate and understanding of knowledge. Students should not only talk to the teacher, but also talk to each other, correct and judge each other. Because this kind of homework can be completed on campus, students who speak well can also win the treatment of not writing homework on holidays. Students are scrambling to talk about topics after class, and the learning atmosphere in the class is getting stronger and stronger.

　　In a word, to ensure students have enough sleep time, we must improve learning efficiency. To achieve this goal, teachers need to leave more "valuable homework", and parents need to help their children correct their wrong study habits, learn to allocate time reasonably, and develop self-disciplined will.

　　Question 3

　　How can the family guarantee?

　　Children’s bedtime?

　　Some parents report that they also want their children to go to bed early, but the children are ungrateful and think they are nagging. In this regard, these parents are helpless and don’t know how to let their children go to bed early.

　　Find out the reasons that affect sleep with your child.

　　Zhao Zhiqin, Vice President of Cuiwei School affiliated to the National People’s Congress

　　The "Sleep Order" of the Ministry of Education clearly requires the bedtime of primary and secondary school students: primary school students are generally no later than 21: 20, junior high school students are generally no later than 22: 00, and senior high school students are generally no later than 23: 00. To truly implement and guarantee the sleep time of primary and secondary school students, home-school cooperation is essential. Here, I give some suggestions to parents based on my own education and teaching experience.

　　First, parents can communicate with their children through heart-to-heart communication, and objectively and comprehensively analyze the causes of insufficient sleep time. For example, whether the workload is really large or the efficiency of children’s homework is low, whether children have the habit of procrastination or their own knowledge points are not firmly grasped, whether it is the interference of electronic products such as mobile phones or the difficulty of homework itself, and so on. Every child is an independent individual, with different study and living habits, and the difference in academic level exists objectively, so the factors affecting sleep are bound to be different. Parents and children should find the problem together in a harmonious atmosphere and then come up with a solution.

　　Second, guide children to plan their study time reasonably. Children should copy the homework directory with notepad every day, make overall planning, arrange the sequence reasonably and estimate the time. It is suggested to do the most important content first, such as the problems that need a lot of thinking in science classes in the most awake and energetic period, which will help save time and improve efficiency. If there is a big difference between the estimated time and the actual completion time, the reasons should be analyzed in time and the methods should be adjusted. Finishing homework in a limited time is an important condition to improve the efficiency of homework, and it is also the key to accumulate exam experience at ordinary times.

　　Third, use the family environment to influence children subtly. When children do their homework, parents should not rush them frequently, but help them find and solve problems as far as they can. For example, you can check what children need to recite, listen to children’s analysis of test questions, discuss social hotspots or life problems with children, and negotiate to solve open test questions. Parents’ words and deeds and habits have a great influence on their children. Parents should also sleep on time if they want their children to sleep on time. If parents can’t go to bed early, they should also stop all noisy activities before their children go to bed. It is best not to play mobile phones, play games, watch TV or listen to the radio, etc., so as to create a good rest atmosphere for their children.

　　Fourth, don’t give children too much extra-curricular burden. Parents should agree with their children on the rules that need to be followed, including the schedule of work and rest, the use time of electronic products such as mobile phones, etc. Even on holidays, don’t break the rules easily, and gradually form a regular schedule. Before going to bed, parents can remind their children to drink some milk, etc., to ensure nutrition and improve the quality of sleep, and don’t nag and preach. Try not to increase children’s extra-curricular academic burden, such as enrolling in various remedial classes and interest classes, so as to avoid children spending time in remedial classes after school or holidays, forming double pressure inside and outside the school. Even if we cultivate the best and make up the bad, we should selectively improve or make up the leak moderately, and pay attention to quality instead of unilaterally pursuing quantity.

　　Sleep directly affects children’s academic level, which is related to their physical and mental health. Home and school should adhere to the concept of life and health first, and make reasonable efforts to ensure children’s sleep, so that children can grow up healthily and happily in a state of energy and pleasure.

　　Question 4

　　What if the child can’t sleep?

　　Some parents say that it is not too late for their children to go to bed, but they can’t sleep in bed for a long time. What should they do?

　　Happy exercise helps children sleep well.

　　Zhang Jun, PE teacher of Runze School in Beijing Financial Street.

　　For primary and secondary school students in the growth and development period, sleep will undoubtedly have a greater impact on their health. Studies have shown that, in addition to heredity, among environmental factors, the influence of sleep on children’s height ranks first, and sleep will also affect children’s intellectual development, immunity and so on. In fact, having a good sleep is inseparable from sports.

　　First of all, physical exercise can produce endorphins, which is beneficial to sleep. Secondly, regular exercise can regulate the biological cycle rhythm, which is also called biological clock, and this effect is as strong as that of light on sleep. Thirdly, exercise will increase the body temperature. Doing some light exercise like walking before going to bed can promote the body temperature to rise, and the body will sweat slightly. After stopping, the body temperature will start to drop. Take a hot bath before going to sleep, and people can easily fall into deep sleep. Fourth, regular exercise can make people feel happy, help relieve stress, reduce waking up in dreams and relieve insomnia symptoms. Fifth, exercise below moderate level can make people feel slightly tired, speed up the time of falling asleep and deepen the depth of sleep.

　　Every winter and summer vacation, many children will form the habit of going to bed late and getting up late, but for a period of time after school starts, most of them can go to bed at normal time and enter a deep sleep state. This is closely related to the colorful physical exercises such as skipping rope, ball games, running and roller skating carried out by the school. Children are interspersed with happy exercise in intense study, fully engaged and released, and the heart rate of exercise can basically reach 120 to 150 times per minute, which not only exercises the body, relaxes the mood, relieves stress, but also promotes sleep. Therefore, during holidays, parents should also urge their children to take proper exercise. Except in special circumstances, reaching a certain amount of exercise every day is very helpful for improving the quality of sleep.

　　Expert opinion

　　Behind children’s sleep is the education system engineering.

　　Liu Xi, deputy director and assistant researcher of Education Development Research Center of Beijing Academy of Educational Sciences.

　　Faced with the hard pressure of entrance examination, some schools extend students’ school hours at will, and off-campus training has become a common practice. Sleep for primary and secondary school students has become a soft problem that can be sacrificed, which has been difficult to solve effectively for many years, so that it has been paid attention to by the central government, and the state has issued documents for special treatment. The "Notice on Further Strengthening the Sleep Management of Primary and Secondary School Students" recently issued by the Ministry of Education puts forward seven measures from the aspects of "paying attention to it, ensuring time, preventing interference, improving quality and emphasizing monitoring and supervision", which embodies the spirit of comprehensive policy. Sleeping among primary and middle school students seems to be a simple problem, but it is actually an educational system project. Only when the government, schools, families, students and the society reach a consensus on scientific development can we consciously and effectively implement the measures in the Notice.

　　Have a scientific view of sleep. Sleep is a basic need of human beings. It can make us rest, make our bodies grow sturdily, enhance people’s immune function, and is the prime time to restore memory. Research by Jiang Fan’s team at Shanghai Jiaotong University School of Medicine shows that for children and adolescents who are in the rapid growth and development stage, sleep deprivation and biological rhythm disorder will not only cause short-term inattention, academic performance decline and other consequences, but also damage children’s brain function in the long run, leading to emotional and behavioral problems such as depression, anxiety, attention deficit and behavioral impulsion, significantly increasing the risk of metabolic diseases such as obesity, and damaging physical and mental health and academic development.

　　We should have a scientific view of educational evaluation. The General Plan for Deepening the Reform of Education Evaluation in the New Era and the Opinions on Deepening the Reform of Education and Teaching and Comprehensively Improving the Quality of Compulsory Education issued by the Central Committee of the Communist Party of China and the State Council require "reforming students’ evaluation, promoting the all-round development of morality, intelligence, physique, beauty and labor" and "ensuring students’ adequate sleep time". The Statistical Index System of Education Monitoring and Evaluation in China (2020 Edition) has included students’ physical health compliance rate, students’ obesity rate and students’ poor eyesight rate in the index system. Sleep quality is closely related to these indicators, so it is necessary to incorporate students’ sleep status into the monitoring system of physical health monitoring and education quality evaluation.

　　We should have a scientific concept of educating people. Too much study squeezes sleep time, which is related to the educational concept of some school teachers and parents. The concept of exam-oriented education is prevalent, and repeated exercises are carried out through "brushing questions" in order to get high marks in the examination room. Even if school teachers take the initiative to reduce the burden, parents will report to various off-campus training classes and take the initiative to increase the burden. We should be soberly aware that the 21st century needs high-quality talents, especially innovative talents, so that the country and individual citizens can be in an invincible position. The concept of educating people in schools and families should also be changed. Instead of spending students’ rest time to win scores in the examination room, we should improve classroom efficiency, cooperate between home and school, teach students in accordance with their aptitude, and cultivate them individually. We should arrange the quantity and content of homework on the principle of necessity and pertinence so that every student can grow up healthily.

　　There must be a scientific learning method. Students’ main business is learning, and scientific learning methods help students complete their studies efficiently. Students who can learn can often manage themselves, work and rest regularly and go to bed on time. However, in practice, teachers are busy teaching knowledge, parents don’t know how to guide their children’s learning, and quite a few students don’t have correct learning methods. They are tired of coping with various courses and can’t arrange their time and work and rest as a whole, which naturally leads to a vicious circle. Effective learning is a science, which requires a deep understanding of brain science and psychology. We should teach teachers, parents and students the science of learning, master the correct methods, change passivity into initiative, and reduce learning anxiety, which will naturally help to improve students’ sleep quality.

　　Of course, in addition to raising awareness, it is necessary to use technical means and establish an accountability mechanism to effectively solve the sleep problem of primary and secondary school students. First of all, make full use of modern information technology to ensure that the end time of online live training activities should not be later than 21 o’clock, and no game service should be provided for minors from 22 o’clock to 8 o’clock the next day. Secondly, it is necessary to establish and improve the accountability mechanism, and give administrative sanctions or administrative penalties to schools, off-campus training institutions and online platforms that violate the regulations according to law.

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　　On November 28th, Beijing held the 427th press conference on the prevention and control of COVID-19 epidemic to inform the latest situation.Today 0— At 15: 00, there were 2086 new cases of COVID-19 infection in Beijing.

　　Liu Xiaofeng, deputy director of Beijing Center for Disease Control and Prevention, introduced:From 0: 00 to 15: 00 on November 28, new local COVID-19 virus infections were added.2086 casesAmong them, there were 1907 isolated observers and 179 social screening personnel.

　　Liu Xiaofeng said,The number of newly reported cases in Beijing is still at a high level, and the epidemic situation in Chaoyang District continues to be high. The epidemic situation in the fast-growing areas has expanded, and the epidemic situation in some sporadic areas has increased significantly.

　　Beijing: Strengthening the detection of nucleic acid detection points to prevent cross infection.

　　Xu Hejian, spokesman of Beijing Municipal Government, said:Further optimize nucleic acid detection to achieve safe, orderly and high quality.It is necessary to adhere to the principle of rational, orderly and convenient nucleic acid detection, scientifically coordinate the layout, personnel organization and time arrangement of nucleic acid detection points, and further strengthen the detection of nucleic acid detection points to prevent cross-infection. It is necessary to continuously optimize the process of "collection, delivery, inspection, reporting and verification" to improve the speed, quality and effect of detection, screening and yang chasing. It is necessary to concentrate on improving the quality and efficiency of nucleic acid detection in key epidemic-related townships, quickly find the source of risk, and effectively cut off the chain of epidemic transmission.

　　Some supermarkets and pre-warehouses were temporarily shut down, and nearly 30% of riders were blocked.

　　Guo Wenjie, deputy director of the Beijing Municipal Bureau of Commerce, said:At present, the epidemic situation in Beijing is grim, and the epidemic prevention and control is in a critical period. As the number of people living at home continues to increase, the online demand for residents’ living materials continues to grow. From the daily order, it is about 10% ~ 20% higher than the daily order of 3 million before the epidemic. At the same time, affected by the epidemic, some supermarkets and pre-warehouses were temporarily shut down, nearly 30% of riders were blocked, and the delivery of orders was restricted to some extent. The average daily delivery volume of on-the-job riders increased by nearly 80% compared with daily life.

　　Overall,At present, the online platform goods in the city are sufficient and the price is stable, but in some areas and some time periods, there have been problems of tight transportation capacity and delayed delivery. In the face of the sudden epidemic, the supplier companies race against time to organize the supply of goods, and the takeaway brother spares no effort to take orders for distribution, which basically guarantees the living needs of the general public.The supply network involved in the epidemic requires quick sealing and quick solution. In principle, it should be disposed of and reopened within 24 hours.Guo Wenjie, deputy director of the Beijing Municipal Bureau of Commerce, said:In order to ensure the needs of people’s livelihood, the outlets of the supply sites should be fully opened, and the stocking volume should be increased by 3 ~ 5 times daily.For the supply-guarantee outlets involved in the epidemic, it is required to seal and solve them quickly.In principle, it should be disposed of and reopened within 24 hours, and the closing time should not exceed 72 hours at most.At the same time, establish a green pass mechanism to guarantee the supply of vehicles to ensure that all outlets replenish goods 24 hours a day.Do not empty the rack and keep the goods..Multi-channel recovery of delivery capacity

　　Guo Wenjie, deputy director of the Beijing Municipal Bureau of Commerce, said:Since the outbreak of the epidemic in April 2022, in order to coordinate the epidemic prevention of take-away riders and the distribution of living materials, we have established a "white list" mechanism for suppliers, and strengthened epidemic prevention measures through "four falls and five guarantees", that is, losing identity, store warehouse, distribution area and residential address; Make sure that the nucleic acids are not 0 and 1, and that the results without antigen are not on duty. Make sure to wear N95 mask all the time, make sure that the hands are disinfected before delivery, and make sure that there is no contact distribution in the risk area. It has played an important role in ensuring the supply of daily necessities in Beijing by forming a supply team with strengthened protection and flexible deployment to minimize the number of staff involved in the epidemic or become a source of infection.

　　Since the current epidemic, in the face of severe epidemic prevention situation and supply pressure, the number of "white list" personnel has rapidly expanded from 5,000 to 40,000 in two weeks. In addition, take-away enterprises are encouraged to increase the recruitment of riders by increasing the commission ratio and setting up incentives such as running orders, and to supplement the transportation capacity as soon as possible by coordinating the allocation of manpower in different regions and sharing labor with catering enterprises.

　　Establish emergency safeguard mechanism of vegetable through train

　　Guo Wenjie, deputy director of the Beijing Municipal Bureau of Commerce, said:At present, there are 356 municipal vegetable through trains in 15 through train enterprises, which can provide direct supply services for vegetables and other necessities for about 500 communities and meet the needs of 3 million residents. In addition, 50 postal vehicles have been prepared to form a reserve mobile force, which can be put into distribution at any time. Dynamically monitor the supply of daily necessities in various regions, and the urban commercial department will make timely judgments.Organize through trains at any time to send vegetables and other necessities to communities in need, so as to facilitate residents to buy them.

　　"Food is the most important thing for the people", and the daily life security of ordinary people is a huge matter, which cannot be stopped for a moment. This is the top priority of our work. People, cars, goods, markets, stores and warehouses are all indispensable. The business department will mobilize various forces to do the best to ensure the supply of living materials for citizens.

　　Do a good job in ensuring the daily medical service for people at risk of epidemic.

　　Wang Xiaoe, member of the Party Committee and spokesperson of the Beijing Municipal Health and Wellness Committee, introduced:In order to do a good job in ensuring medical service for epidemic-related risk personnel in high-risk areas, home isolation, centralized isolation, etc., and meet the daily medical needs of residents during the epidemic, the medical treatment and hospital prevention team closely followed the epidemic prevention and control situation, adhered to problem-oriented, closely coordinated with departments, coordinated medical resources, and further optimized and adjusted the daily medical service guarantee measures for epidemic-related risk personnel to ensure that medical services were not interrupted or delayed, and guaranteed people’s life safety and health.

　　The first is to implement classified protection and respond quickly to the needs of the masses for medical treatment.Arrange the situation of children, pregnant women, long-term dialysis patients, tumor radiotherapy and chemotherapy patients, critical patients and other key personnel involved in the epidemic, establish a work account, and inform critical patients to dial 120. For other non-critical patients who seek medical treatment daily, the medical team and community workers keep the telephone open for 24 hours to respond and solve the medical needs of residents in time.

　　The second is to establish a docking mechanism to meet the needs of medical treatment in various ways.Establish a docking mechanism between communities (villages), medical teams, community health service institutions and designated hospitals. When people involved in epidemic risk have daily medical needs, they will dock with medical teams or community health service institutions in time, and arrange medical personnel to meet medical medication and health needs through online diagnosis and treatment and drug delivery. For the epidemic-related risk personnel who need to go out for medical treatment, if it is really necessary to go to the designated hospital after judgment, the medical team or community health service institutions will coordinate and dock with the hospital.

　　The third is to improve the transshipment measures and smooth the channels for going out for medical treatment.In the closed control area, a mass medical support motorcade can be set up, and social vehicle assistance services can be provided when people involved in epidemic risk need to go out for medical treatment; For epidemic-related risk personnel who have the ability to drive by themselves or their families to accompany them to the hospital for medical treatment, they are encouraged to take private cars for medical treatment, unblock medical channels, and inform them well; For self-driving medical treatment, the bayonet in each control area should be released in time; Medical institutions should make good preparations for consultation, and medical institutions should not refuse to accept consultation because people involved in epidemic risk go to see a doctor on their own.

　　The fourth is to implement closed-loop management to ensure the safety of going out for medical treatment.People at risk of epidemic going out for medical treatment must do personal protection in the whole process, implement closed-loop management, and return to closed-loop immediately after medical treatment. Medical support vehicles that undertake the task of transferring people with epidemic risk should be dedicated to special vehicles, with physical isolation between the cab and the carriage, equipped with protective equipment in the vehicle, and the driver should strictly regulate and do personal protection to ensure the safety of going out for medical treatment and minimize the risk of social spillover.

[Autohome Qiandongnan Promotion Channel] Recently, a limited-time promotion has been launched in Qiandongnan, with a maximum discount of 28,000 yuan and a minimum starting price of 188,600 yuan. This promotion is in progress, and consumers who are interested in eπ 008 can seize the opportunity to click "Check the car price" in the quotation form to strive for higher discounts.

The front face of the eπ 008 adopts a family-style design language, and the air intake grille adopts a closed design. With sharp LED headlights, the overall shape is simple and technological. The body lines are smooth, showing a sense of movement and movement, highlighting the modern style of the eπ 008. The rear part adopts a simple design, with LED taillights, the overall shape presents a sense of modernity and fashion.

eπ008是一款充满时尚感的车型，车身尺寸为5002*1972*1732mm，轴距达到3025mm，提供了宽敞的内部空间。车侧线条流畅且动感十足，前后轮距均为1650mm，确保了车辆的稳定性和操控性。配备265/45 R21规格的轮胎，搭配运动风格的轮圈，为车辆增添了独特的视觉效果。

eπ008的内饰风格现代简约，采用了皮质方向盘，手感舒适，支持手动上下和前后调节，方便驾驶者找到最佳握持位置。中控区域配备了一块15.6英寸的超大屏幕，搭载了多媒体系统、导航、电话和空调的语音识别控制系统，让驾驶者可以轻松操作各种功能。此外，车内还配备了前排和后排的USB和Type-C接口，方便乘客给电子设备充电。前排座椅还具备加热、通风功能，同时驾驶位座椅还配备了头枕扬声器，提供更好的听觉体验。此外，eπ008的座椅采用仿皮材质，主副座椅均支持前后调节、靠背调节、高低调节和腰部支撑调节，前排座椅还具备电动记忆功能，提高了乘坐的舒适度。第二排座椅同样支持前后调节、靠背调节和腿托调节，后排座椅还支持比例放倒，为乘客提供了更多的舒适性和便利性。

eπ008搭载了一台1.5T 147马力的L4发动机，最大功率为108kW，最大扭矩为210N·m。与之匹配的是电动车单速变速箱，为车辆提供强劲的动力输出。

汽车之家车主 对eπ008的外观给予了高度评价，他提到：“外观大气时尚，不说价格的话都以为得三十?了。”这句话不仅展现了eπ008的高端质感，也让人感受到了其超越同价位车型的设计魅力。

　　On April 29th, 08 EM-P LYNK Flyme Auto 1.4.0 was officially launched, and Lynk Co-Pilot Navi intelligent pilot assistance system was upgraded, adding 12 intelligent driving functions, including driving, parking and entertainment, and officially opening the high-speed NOA pilot driving assistance function.

　　Linke 08 EM-P integrates two Huashan No.2 A1000 chips, with a computing power of 116 TOPS (INT8). It is a high-computing vision solution for mainstream L2+ high-order parking, and with 27 high-performance sensing hardware, it can improve driving convenience for users in more scenes.

　　High-precision, high-coverage full-stack self-developed high-precision map, covering the national high-speed/elevated 100+ daily use scenes, positioning accuracy can reach centimeter level, and the map freshness is always maintained through high-frequency update. During driving, multi-source dynamic update provides instant support for double verification, and realizes an anxiety-free and reliable intelligent driving experience.

　　After this update, Link NOA high-order intelligent driving navigation assistance can help users reach their destinations in the full-speed domain of 0-150km/h in closed roads, according to the set navigation destinations, through autonomous overtaking, switching high-speed and autonomous up-and-down ramps.

　　In addition, the new version increases the default strategy of the main road, which can cope with different traffic scenarios and improve the success rate of independent import. In addition to autonomous lane change, it also supports lane change by shifting lever and voice.

　　Lectra NOA can pass through a bend with a radius of 50m at the minimum, and will also give a reminder before entering the bend, so that the bend is smooth and calm. When encountering large vehicles such as trucks, or when the front car presses the line, Lectra NOA will make intelligent avoidance.

　　As one of the few equipped models in the industry, the Lectra 08 EM-P is equipped with 4D millimeter-wave radar, which has the ability of height measurement, and trucks and trailers with high chassis can be accurately identified.

　　EMA steering emergency collision avoidance assistance can accurately identify vehicles, two-wheeled vehicles and pedestrians driving in the same direction, and assist drivers in steering to avoid danger at critical moments. At the same time, ACC adaptive cruise system can identify the static fake car stop at a maximum of 120km/h, and cooperate with large-size brake disc and IPB intelligent integrated brake system to realize safe braking without "nodding".

　　APA fully automatic parking function is fully online, supporting horizontal parking spaces, vertical parking spaces and inclined train spaces. In the process of reversing, PEB parking emergency braking assistance will detect the rear area of the vehicle and assist braking to reduce the risk of reversing.

　　After upgrading APA automatic parking, users can move their cars through UWB keys, and then turn on RPA’s one-button remote parking function to realize parking outside the car. When picking up the car, the vehicle can also park out automatically by sensing the orientation of the UWB key.

　　The AR-HUD interface adds a map projection function, which supports small maps, enlarged maps of intersections and countdown status display of traffic lights. The instrument view adds "Map View" and "Smart View", in which "Map View" can project the map onto the instrument, and the map interface can be opened by three-finger flying screen.

　　The function of intelligent voice assistant has also been strengthened. In addition to voice lane change, USB music, account center (dialog box) and camping space all support specific functions that can be seen and said.

　　At present, version 1.4.0 has been officially pushed, and the first batch of pilot assistance of LENGKE NOA advanced intelligent driving covers some areas covered by high-speed and elevated roads supported by Jiangsu, Zhejiang, Shanghai and Guangdong high-precision maps.

In the compact car market, Volkswagen sagitar has become the first choice of many consumers with its excellent quality and cost performance:

Take the 2020 1.2T model as an example. Although its official guide price starts at 127,900 yuan, the actual landing price is more attractive after market concessions. For car buyers with a budget of about 150,000 yuan, the 1.2T version can not only meet the daily use, but also meet the demand in power performance. The 100% acceleration time is about 11 seconds, which is more than enough for daily driving or occasional overtaking.

In terms of configuration selection, the owner mentioned that the power of the 1.2T version is slightly smaller than that of the 1.4T version, but most configurations remain the same. Car owners think that the 1.2T version is more economical, and in terms of preferential strength, the preferential margin of the 1.2T model is usually higher than that of the 1.4T model, which is a good advantage for consumers with limited budgets.

In the experience sharing of car purchase, the owner took the 1.2T comfort version as an example, and its bare car price was 115,900 yuan. Under the loan scheme, the down payment was 39,900 yuan, the loan was 76,000 yuan, and the monthly repayment was 2,243 yuan. Comprehensive expenses including purchase tax, insurance, rescue service and service fee, the total landing price is about 148,732 yuan. Although the loan increases the cost of buying a car, considering the personal financial situation, the owner thinks this price is more appropriate.

In terms of interior, sagitar has won the praise of car owners with standard popular design and more exquisite workmanship. Although the size of the central control screen is small, the overall sense of luxury has improved. In the driving experience, sagitar’s handling and comfort have been recognized, especially the suspension system, which is praised as the best in its class.

To sum up, the Volkswagen Sagitar 1.2T model has become an ideal choice for many consumers in the compact car market with its excellent driving experience, reasonable configuration and affordable price. If you are considering buying, it is recommended to further evaluate according to your own needs and budget.

CCTV News:According to the website of the US Navy Times, on April 8, local time, the first "Ford" of the newly developed "Ford" class aircraft carrier of the US military made its first self-powered voyage in Newport Port, and immediately began sea trials. So what is the difference between the latest aircraft carrier developed by the US military?

"Ford": Known as the world’s most advanced aircraft carrier

"Ford", 332 meters long and 40 meters wide, has a displacement of over 100,000 tons. It uses nuclear propulsion and has a speed of 30 knots. The number of carrier-based aircraft has reached more than 75, with a staffing of 4,550, and the total cost is as high as 13 billion US dollars.

　△ Figure/vision china

The overall dimensions of the "Ford" class aircraft carrier are not much different from those of the Nimitz class aircraft carrier (the active nuclear-powered multi-purpose aircraft carrier under the US Navy), but the performance has been significantly improved:

First, the degree of automation is further improved by using electromagnetic catapult instead of steam catapult and electromagnetic arresting device instead of hydraulic arresting device..

Second, the use of new nuclear reactors is more efficient..

Thirdly, it is possible to adopt a multi-functional phased array radar with single frequency band or a multi-functional radar with stronger anti-missile ability, so that the information level is higher.. 　

The sea trial of "Ford" will be carried out for several days, mainly focusing on the related tests of hull mechanical engineering and power system. After that, the US Navy will conduct flight operations and conduct a comprehensive test of the aircraft carrier’s flight deck.

　△ Figure/vision china

So, what is so outstanding about this so-called world’s most advanced aircraft carrier?Military expert Zhang Junshe believes that there are three main points.：

First of all, as the third-generation nuclear-powered aircraft carrier, Ford uses electromagnetic catapult, which has stronger ejection ability and more flexibility.You can eject a plane every 45 seconds25% faster than a Nimitz-class steam catapult. According to data research, Nimitz-class aircraft carrier can dispatch up to 160 carrier aircraft every day, and once electromagnetic catapult is used, the carrier aircraft dispatch of "Ford" aircraft carrier can reach 180.

Second, the power generation capacity is improved, which is three times higher than that of Nimitz-class aircraft carriers. The "Ford" aircraft carrier has two new and advanced nuclear reactors, each with a power generation capacity of 300 MW.In this way, we can meet the needs of using high-energy weapons such as rail gun and laser cannons in the future..

Thirdly, the setting on the deck is optimized. It will take time to finish the action of refueling and hanging bombs on carrier aircraft,From two hours to one hour..

Equipped with shipborne drones to subvert traditional operations

Another striking thing about the American "Ford" aircraft carrier is that it is equipped with an X-47B unmanned attack aircraft. It is the world’s first unmanned aerial vehicle that does not rely on manual remote control, but is independently controlled by artificial intelligence.

According to experts’ analysis, the X-47B unmanned attack aircraft has a long range and a large combat radius. Once it is put into operation, it can not only reduce casualties, but also carry out a deadly deep attack on the other side. Although the X-47B unmanned attack aircraft has many problems in the shipboard test, if it is used in conjunction with future manned fighters on the aircraft carrier, it will greatly improve the combat capability of the US Navy.

Military expert Zhang Jun society：

Former U.S. Defense Secretary Hagel once pointed out at the shangri-la dialogue Conference that once the X-47B unmanned attack aircraft successfully took off or landed on the aircraft carrier, it marked that the U.S. Navy entered a new aviation era, and it was also a milestone for the United States to gain military superiority.

Expert: The US military will rely more on aircraft carrier combat forces in the future.

In 2012, after the first nuclear-powered aircraft carrier Enterprise in the United States was retired, the US military has maintained a lineup of 10 Nimitz-class nuclear-powered aircraft carriers. After Trump took office, he put forward the slogan of restoring the number of aircraft carriers to 12. What does the joining of "Ford" mean to the US military?

Zhang Junshe, a military expert, believes that the main purpose of increasing the number of ships from the current 10 to 12 is to maintain the absolute superiority of the US Navy, especially compared with other countries. At present, the aircraft carriers owned by some countries in the world are much worse than the Nimitz-class aircraft carriers in the United States in terms of tonnage, the number of carrier-based aircraft and combat strength. In this case,The United States continues to develop aircraft carriers, of course, indicating that it will rely more on aircraft carrier combat forces in the future..

　　The Internet of Vehicles has once again taken a crucial step.

　　Recently, the "Implementation Plan for the Establishment of National Jiangsu (Wuxi) Vehicle Networking Pilot Area" was released to the public, marking the official launch of the construction of the first national vehicle networking pilot area in China. One day later, Miao Wei, Minister of Industry and Information Technology, and Wu Zhenglong, Governor of Jiangsu Provincial People’s Government jointly unveiled the first car networking pilot zone in China in Wuxi, Jiangsu. It can be said that the era of car networking has started.

　　At the vehicle networking security summit forum of the 6th National Cyber Security Publicity Week Sub-forum held recently in 2019, the vehicle networking security issue became a hot topic. Experts and scholars from the fields of vehicle networking and network security have conducted in-depth discussions on issues such as the development of vehicle networking security industry, security technology and application innovation, and actively made suggestions and suggestions.

　　Experts believe that the rapid development of the Internet industry is inseparable from the support of network security work, and the development of vehicle networking has also brought new challenges to network security. At present, the overall safety of the Internet of Vehicles is still in its infancy, which requires the joint participation of the automobile industry and the coordinated cooperation of related industries, so as to unite the strength of the industry, continue to increase R&D, innovation and investment from the aspects of technology, standards, management, even industrial system and personnel training, build a people-centered network security system of the Internet of Vehicles, and protect the security of terminal (vehicle) link data.

　　Accelerate the integration and innovation of 5G and car networking

　　In 2018, the car networking industry entered the fast lane. This year, China has successively issued a number of policy documents to promote the development of car networking.

　　In April 2018, the Ministry of Industry and Information Technology and other three departments issued the "Intelligent Networked Vehicle Road Test Management Specification (Trial)", which means that "unmanned" driving cars can be tested on more actual roads. In June 2018, the Ministry of Industry and Information Technology issued a series of documents entitled "Guidelines for the Construction of National Vehicle Networking Industry Standard System (General Requirements)", proposing that by 2020, an intelligent networked vehicle standard system that can support assisted driving and low-level automatic driving will be initially established.

　　In November 2018, the Ministry of Industry and Information Technology issued the "Regulations on the Management of Direct Communication Using 5905-5925MHz Frequency Band in Vehicle Networking (Intelligent Networked Vehicles) (Provisional)" to support the national special economic zones, new districts and free trade pilot zones to accelerate the construction of intelligent transportation systems.

　　On December 25, 2018, the Ministry of Industry and Information Technology issued the "Action Plan for the Industrial Development of the Internet of Vehicles (Intelligent Networked Vehicles)", clarifying that by 2020, a breakthrough will be made in the cross-industry integration of the Internet of Vehicles (Intelligent Networked Vehicles) industry, and intelligent networked vehicles with high-level autonomous driving functions will be applied in a specific scene scale, with the penetration rate of Internet of Vehicles users reaching over 30% and the infrastructure level of intelligent roads significantly improved.

　　Under the guidance of these policy documents, the development of China’s car networking industry has been further accelerated, and the industrial scale has been expanding.

　　On September 6, at the 2019 Expo Intelligent Transportation and Vehicle Networking Industry Development Summit Forum, the implementation plan for the establishment of the national Jiangsu (Wuxi) Vehicle Networking Pilot Area was officially released. On September 7, Miao Wei and Wu Zhenglong jointly unveiled the first car networking pilot zone in China in Wuxi, Jiangsu.

　　Miao Wei proposed to combine the commercial deployment of 5G, give full play to China’s foundation and advantages in network technology, pilot demonstration, industrial integration, institutional mechanisms, etc., and accelerate the integration and innovation of 5G and car networking; Focus on the "stuck neck" technical links such as automotive chips, computing platforms and in-vehicle operating systems, achieve breakthroughs one by one, and support qualified regions and enterprises to try first; Promote the improvement of relevant laws and regulations, speed up the construction of the vehicle networking pilot area, strengthen the exploration of management mechanism and operation mode, improve the level of safety protection technology, and ensure the healthy development of the vehicle networking industry.

　　Some experts believe that the development of the car networking industry is conducive to improving the level of car networking and intelligence, realizing automatic driving, developing intelligent transportation, and promoting information consumption. It is of great significance for China to promote supply-side structural reform, promote the construction of a manufacturing power and a network power, and achieve high-quality development.

　　Give play to the key role of network security

　　The development of car networking is a profound change involving the value chain, industrial chain and innovation chain. During the 13th Five-Year Plan period, China will take scientific and technological innovation as the guide and intelligent networking as the main direction, and strive to create new formats and new kinetic energy, and promote the transformation, efficiency and upgrading of the automobile industry, so as to achieve the goal from big to strong.

　　Zhao Zhiguo, director of the Network Security Administration of the Ministry of Industry and Information Technology, believes that "the Internet of Vehicles is a new thing, with a new industrial form, a large industry span and a wide range of applications. Its perfection and development require vehicle companies, parts research and development companies, Internet companies, universities, and scientific research institutions to jointly explore and work together."

　　"Without network security, everything is impossible." According to Shen Changxiang, an academician of China Academy of Engineering, safety is the premise of development, and development is the guarantee of safety. Network security threats and protection are eternal themes, and cyberspace is much more fragile than imagined. The traditional "blocking and killing" has been difficult to deal with attacks, so it is necessary to establish a computing framework of active immunity. By building a triple protection framework of active immunity supported by a trusted security management center, the active immune computing model with measurable and controllable calculation results and coexistence of protection and calculation can be achieved. Shen Changxiang said frankly, "The Internet of Vehicles is a typical Internet of Things. It is necessary to simplify complex problems with the hierarchical protection safety management center architecture and form a safety management center according to the hierarchical protection requirements."

　　With the advent of the 5G era, is the Internet of Vehicles a joy or a worry? Wang Yongjian, a researcher at the Internet Emergency Center, said that the Internet of Vehicles in the 5G environment faces five major security threats: intelligent networked vehicles, mobile intelligent terminals, Internet of Vehicles service platforms, wireless communication in the Internet of Vehicles, data security and privacy protection in the Internet of Vehicles. The security risks introduced by 5G generalized access in wireless communication mainly include: traffic attack, identity forgery and malicious interference.

　　To this end, Wang Yongjian suggested that in terms of technical monitoring means, it is necessary to study the intelligent abnormal traffic monitoring mechanism based on deep learning and other technologies, improve the network security protection capability of the Internet of Vehicles, and provide monitoring and early warning functions and network control functions; Based on the 5G authentication framework and communication encryption algorithm, a trusted "man-vehicle-road-cloud" collaborative communication is built to realize timely identification and alarm of unauthorized access. At the same time, the monitoring and positioning technology of abnormal strong interference is studied, and the monitoring system is intelligently arranged based on roadside facilities to monitor important frequency bands in real time, so as to realize the cooperative positioning of abnormal interference sources in satellite navigation and other systems.

　　Build a network trust support platform together.

　　How to deal with the security risks faced by the Internet of Vehicles? Experts attending the meeting put forward suggestions from many angles.

　　"The car network security trust system is an important means to solve the network security problem of the car network." Zheng Jihu, director of the data resource center of China Automotive Technology and Research Center Co., Ltd., said that in order to solve the problems faced by the automobile industry in the process of establishing a network trust system, China Automobile Center has jointly established a network trust support platform for the automobile networking with relevant enterprises, universities and research institutes to provide network security for the intelligent and networked development of the automobile industry.

　　It is worth noting that "China Internet of Vehicles (Intelligent Networked Cars) Network Trust Alliance" was launched at the forum. According to Zheng Jihu, the alliance aims to build a better trust support platform for the Internet of Vehicles (IoT), and to connect the upstream and downstream industrial chains of the IoT trust system.

　　Yang Bin, senior vice president of Tianrongxin Company, pointed out that "to do a good job in the security protection of the Internet of Vehicles, we need to learn from the protection technology of IT network security, combine the business scenarios of the Internet of Vehicles, and adopt a variety of protection technologies to work together."

　　"For example, through authentication and encryption technology, the trusted identity authentication and communication encryption transmission of the in-vehicle network, the car and the cloud, the car and the mobile phone can be realized, and attacks such as command cracking, replay attacks, identity forgery and data theft can be prevented." Yang Bin said, through the vehicle intrusion detection technology based on white list, combined with security incident reporting and cloud strategy distribution, the attack detection such as abnormal traffic and abnormal message identification in the vehicle can be realized.

　　For another example, the in-vehicle security domain is isolated through the in-vehicle security gateway, so as to realize access control between key interconnected components in the vehicle, depth detection of CAN messages, security audit, intrusion prevention, etc., and realize the security protection of the in-vehicle network boundary.

　　Regarding how to do a good job in the safety of car networking, Zhao Zhiguo put forward five suggestions: First, fully understand the importance and urgency of car networking safety; The second is to accelerate the breakthrough of the core technology of vehicle networking security; The third is to promote the improvement of the security system of the Internet of Vehicles; The fourth is to strengthen the guarantee of talent team; Fifth, strengthen international exchanges and cooperation.

　　Guo Yansong, deputy director of the Technology Center of Great Wall Motor Co., Ltd., called for the establishment of industry-recognized automotive network security data; At the same time, formulate a car network security solution suitable for China’s national conditions; In addition, it is necessary to speed up the formulation of standards, certification and access systems so that enterprises in the industry can have evidence to follow.
(Original title: Security issues in the Internet of Vehicles era can not be ignored. Experts suggest building a people-centered network security system for the Internet of Vehicles)