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Original title: Every day, a Wuling Fenguo car in Haikou exploded during parking. 4S shop: non-quality problem.

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On the afternoon of June 18th, Mr. Li from Haikou drove Wuling Fanguo, which had been purchased for less than one year, out on business. During this period, he parked his car on the side of the road, and two hours later, he found that the right front glass of the car had burst. After monitoring nearby, it was found that no one else passed by when the glass burst, so it was questioned that there were quality problems in the automobile glass. The car 4S shop responded that after on-site inspection, there was an obvious "stress point" on the glass, which was caused by external force, so the owner of the car bore the loss.

The car stopped at the side of the road and the right front glass burst. Photo courtesy of interviewee

According to Mr. Li of Haikou, on the afternoon of June 18th, he drove his Wuling Fenguo car, which had been purchased for less than one year, to work in Changliu, Haikou. At about 3: 30 that afternoon, he parked his car at a monitored road. Two hours later, when Mr. Li was about to drive back, he found that the right front glass of the car was covered with "water droplets" and a hole was broken by gently rubbing the glass with his hand.

"At that time, I thought it was air-conditioned water, but I didn’t expect the glass to burst." Mr. Li said that the car glass was intact before parking, and he parked nearby for the first time, and the things in the car were not lost. Therefore, the possibility of man-made smashing cars does not exist. In order to find out the cause of the bursting of the automobile glass, Mr. Li called the police on the spot and found that no one else passed by when the glass burst, so he questioned the quality problems of the automobile glass itself.

Mr. Li believes that the quality problem of automobile glass leads to bursting, so the consequences should be borne by the automobile 4S shop. "My appeal is not excessive. Just give me free replacement of glass and film." Mr. Li said.

On the afternoon of June 20th, the reporter came to Wuling Automobile Haikou Liangju Huanchi Store to learn about the situation. Mr. Zhuo, the receptionist of the store, said that the after-sales manager was on a business trip. However, Mr. Li’s car glass burst was handled by him.

According to Mr. Zhuo, on the day of the incident, when he rushed to the scene to understand the situation, he noticed that there was an obvious "stress point" on the damaged glass. Therefore, the bursting of the automobile glass should be caused by external forces, not the quality problem of the glass itself.

The staff of the 4S shop said that the "stress point" on the automobile glass showed that the glass burst was caused by external force. Reporter Jiang Fei photo

"We gave feedback to the manufacturer, and the manufacturer denied that there was a quality problem with the glass. Therefore, this matter is borne by the owner himself. " Mr. Zhuo said that although the owner provided on-site monitoring, no one appeared nearby at the time of the incident, it could not be ruled out that foreign objects splashed from other directions and hit the glass, which caused the glass to burst. After all, if this was the case, the monitoring could not be photographed. Therefore, the loss of the vehicle should be borne by the owner himself.

The staff of the 4S shop said that the "stress point" on the automobile glass showed that the glass burst was caused by external force. Reporter Jiang Fei photo

Mr. Li expressed dissatisfaction with the reply from the staff of Wuling Automobile Haikou Liangju Huanchi Store: "The video evidence I provided can prove that there is no human factor. How can the 4S store conclude that the so-called’ stress point’ is caused by external forces, not its own quality problems?"

Mr. Li is dissatisfied with the explanation of the 4S shop and has complained to Haikou 12345 hotline.

(Jiang Fei)

Cartography/Gao Xiang

　　On the 20th, it was reported that the "Interim Measures for the Management of Online Booking Taxi Business Services" (referred to as the "Measures") will be issued as soon as early May and at the latest by the end of May. It is also said that the new regulations impose restrictions on online car-hailing platforms, vehicles, drivers, etc. Therefore, some commentators believe that the test of life and death for online car-hailing platforms is coming. In fact, similar rumors have been made many times, but whether this time it will come true remains to be seen.

　　Guess/

　　Rumors have been heard many times, can it come true this time?

　　Since October 10, 2015, the Ministry of Transport issued the "Interim Measures for the Management of Online Booking Taxi Business Services (Exposure Draft) " and the "Guiding Opinions on Deepening Reform and Further Promoting the Healthy Development of the Taxi Industry (Exposure Draft) ", there have been many rumors about when the new regulations on online car-hailing will come to fruition, but they have all been falsified by facts.

　　In December 2015, there was news in the industry that "the new policy for special cars may be announced and implemented as soon as January 1, 2016". On the eve of the Spring Festival this year, there were also rumors that the revised and adjusted "Interim Measures" based on public opinion may be introduced before the Spring Festival at the soonest, but it has not been introduced in the end.

　　In comparison, this rumor seems to be more credible. The rumor not only claims that the new regulations will be introduced as soon as early May, but also claims that the upcoming "Measures" put forward specific requirements for online car-hailing platforms, vehicles and drivers. Among them, the online car-hailing platform needs to be registered in a certain place and needs to obtain a "Road Transport Operation Permit"; the nature of the use of online car-hailing vehicles is registered as taxi passenger transportation, and it needs to obtain a "Road Transport Certificate" for booking taxis; drivers need to obtain a "Road Transport Practitioner Qualification Certificate" and so on.

　　Whether this rumor will come true is still unknown, but what is certain is that the new regulations have been formulated, and it is only a matter of when the shoes will fall. At the two sessions this year, Yang Chuantang, the minister of transportation, publicly disclosed that the guidance on the standardized management of special cars and several measures have been formulated, and the time for their introduction is hoped to be "as soon as possible." In addition, a number of special car platforms have revealed that they have knowledge of the content of the "Measures" and "the plan may be announced at any time."

　　Response/

　　Didi Uber China is still unaware of it

　　In response to online rumors, the reporter of West China Metropolis Daily contacted the relevant person in charge of several domestic online car-hailing platforms. At present, although the nature of domestic online car-hailing platforms is the same, the specific operation mode is also different, so the attitude towards the new regulations of online car-hailing is also different.

　　"At present, we don’t know whether the rumors are true or false. We don’t comment. We can only respond after the new regulations are officially promulgated and implemented." The relevant person in charge of Uber China told reporters that Uber has made its attitude clear about the new regulations on special cars. It is understood that after the introduction of the new regulations exposure draft, Uber responded immediately and said that it will take the initiative to adapt to the new regulations and apply for the required qualifications and licenses as soon as possible.

　　If the new regulations are as rumored, the new regulations for special cars are not much different from previous exposure drafts. Online car-hailing platforms must first obtain a "Road Transportation Operation Permit", which is not difficult for each platform. Didi, Uber and others have already obtained licenses in China. But the requirements for vehicles and drivers of the new regulations are currently difficult for any online car-hailing platform to achieve.

　　"There is a lot of controversy about whether private cars can be connected to special cars, and several platforms together involve more than 1 million cars." The relevant person in charge of Didi told reporters that not only this, but also the travel of hundreds of millions of people will be affected. The relevant person in charge of Didi’s government affairs department also said that the new regulations on the "scrapping of special vehicles in eight years" stipulate that "the threshold is too high, which will cause waste of resources".

　　In fact, different platforms have different attitudes towards the new regulations on special cars. "The new policy is consistent with the previous supervision ideas of the Ministry of Transport on online car-hailing, reflecting the supervision ideas of people-oriented, compatible and open, and encouraging innovative development." The relevant person in charge of Shenzhou Special Car told the West China Metropolis Daily that Shenzhou Special Car supports and welcomes the new policy and hopes that the new policy of special car supervision will be introduced as soon as possible.

　　Focus/

　　The controversy over access to private cars

　　It has been more than half a year since the introduction of the exposure draft of the "Management Measures", but the new policy has not been officially introduced. "The reason why it is difficult to give birth, the focus of everyone’s debate is still the issue of private car access, whether it is the government or enterprises, they are all playing a multi-party game," Zhang Xu, a senior analyst at Analysys think tank, told reporters.

　　Rumor has it that the "Administrative Measures" require "the nature of the use of online car-hailing vehicles to be registered as rental passenger transportation", which is considered to have a fatal impact on the entire online car-hailing business. "At present, the vehicles on the online car-hailing platform are either private cars or rental vehicles. If a private car wants to participate in the online car-hailing operation, it needs to change the nature of the vehicle. Once it becomes a commercial vehicle, the scrapping period of the private car will become eight years or less." Industry insiders believe.

　　"The goal of the state’s new regulations on special cars is also to balance the interests of all parties, but in the process of implementation, all parties will also face many problems." Hu Yong, an associate researcher at the Institute of Sociology of the Sichuan Academy of Social Sciences, told reporters that it is not easy to balance the interests of all parties. In the absence of consensus among all parties, Zhou Qiren, a professor at the National Development Institute of Peking University, believes that Chinese cities are so different that it is impossible for them all to implement one transportation model. It is best for the Ministry of Transport to come up with a guide and make principled regulations, and let local governments pilot the rest.

　　Zhang Xu also believes that the development of the sharing economy has become an irreversible trend. "Some of the provisions in the new regulations have a big impact on the special cars under the sharing economy. I don’t think the government will destroy an industry by regulating it." Zhang Xu said that some of the provisions in the exposure draft "deserve careful consideration by the government."

　　The good news for all platforms is that during the two sessions this year, Yang Chuantang, Minister of Transport, once said that when dealing with new things, we must not stand still and stick to the rules. As a new thing, online car-hailing brings a good experience to passengers, and it is necessary to give this service method a legal way out. Yang Chuantang also said that he will select representative cities to carry out pilots to innovate the mode and technical means of supervising the emerging service industry of Internet platforms. (Reporter, Dong Xingsheng, Intern, He Weihan)

Haizhu District Housing and Urban-Rural Development Bureau made every effort to promote the completion and acceptance of the Tencent headquarters project. Recently, Haizhu District Housing and Urban-Rural Development Bureau organized a progress coordination and promotion meeting in the project department of Tencent Guangzhou headquarters building. At the meeting, the District Housing and Urban-Rural Development Bureau listened to the construction units to report the progress and demands of the project, the follow-up work plans and difficulties of the participating units, and put forward guidance on the completion and acceptance. In the future, the landmark building of Pazhou Artificial Intelligence and Digital Economy Pilot Zone in Haizhu District, Guangzhou – the Guangzhou Tencent headquarters building, as a leading project of Pazhou digital economy, will continue to radiate and drive the upstream and downstream of the Internet industry chain and the entry of eco-sphere enterprises, and promote the rapid growth of Based on the new requirements of high-quality development in Haizhu District, the District Housing and Urban-Rural Development Bureau attaches great importance to the landing of the construction project of Tencent’s Guangzhou headquarters building, actively promotes the smooth completion and acceptance of the project construction, and promotes the construction of a world-class digital economy demonstration zone in Pazhou Pilot Zone. First, multi-dimensional support and coordination of Tencent project construction land, road construction, infrastructure, supporting measures, etc., and actively communicate with surrounding projects and relevant departments to promote the smooth development of project construction. Second, during daily inspections, key inspections of projects are made, and timely rectification is required when potential safety hazards are found. Take the initiative to go deep into the site for many times, conduct spot checks on the completion data and the quality of the entity in advance, help the project to sort out the matters that need to be completed before the completion acceptance in detail, and coordinate the intervention of various functional areas of business in advance. The third is to answer and deal with the difficult questions raised by the enterprise to provide protection for the follow-up acceptance of the project and ensure that the guidance service is not lacking. Fourth, strictly require the project unit to reverse the construction period, adjust the progress plan and resource allocation in a timely manner, and ensure that the project acceptance goal is completed under high quality, efficiency, safety and control. The Haizhu District Housing and Urban-Rural Development Bureau will continue to follow up the progress of the Tencent project, fully support the construction of the Tencent headquarters building under the premise of "ensuring safety, quality and progress", and strive to provide strong support for the Pazhou Pilot Zone to "strive for the first place, lead the race", and promote Haizhu to take the lead in high-quality development, make a good demonstration and write a chapter. (District Construction Project Quality and Safety Supervision Station, Zhao Fang, Jiang Simin)

Tiggo 8 is a medium-sized SUV owned by Chery, and it is also the sales pillar model of Chery. At the beginning of this year, Chery revealed that the Tiggo 8 will usher in a modified model this year, with the internal code name T1D.

A few days ago, we obtained some configuration information of the new Tiggo 8(T1D) through the network channel. In addition to the brand-new innovation and upgrade in appearance and interior, the new car also added a number of comfort and safety configurations.

And in terms of power, the 48V light mixing system was introduced for the first time, which also means that the price of the new car may be raised. At present, the price range of the current Tiggo 8 model is 8.88-155,900 yuan, focusing on the medium-sized SUV market of 100,000 yuan.

On December 26th, Yu Chengdong, CEO of Huawei terminal BG and chairman of BU, a smart car solution, officially released the M9, which is divided into two power versions: pure electric and extended range.The price range is 469,800-569,800 yuan, which will be delivered on February 26.

At the press conference, Yu Chengdong said,The best SUV within 10 million yuan, the most powerful SUV that can be seen on the road-here comes the M9.It is understood that the parts such as the rear floor and the front engine room assembly of Wenjie M9 are all die-cast, and a 9000T press will be used, which integrates many black technologies of Huawei.

It is reported that in terms of battery life, Wenjie M9 is equipped with the fourth-generation extended range platform, with a 52-degree battery version CLTC with a comprehensive battery life of 1402km and a pure battery life of 275km.

Yu Chengdong said that the M9 car in the world was fully equipped with 10 screens. Among them, Wenjie M9 is equipped with a car-level projection giant screen. Through the car-level projector and the 32-inch lifting projection curtain, it supports one-button viewing mode and Huawei’s remote control, recreating the cinema viewing experience.

Yu Chengdong said, Wenjie M9 is equipped with the leading generation of intelligent lighting system, and HUAWEI XPIXEL Huawei Megapixel intelligent projection headlights adopt the original double-reflex spatial optical system, which can be used as a 100-inch outdoor giant screen projection when camping.

The vehicle has 2.6 million pixels of fine lighting with dual lights. The shading adaptive algorithm can be linked with ADS to accurately shade the light, which can realize real-time "matting" of the light. The high beam only illuminates the road and accurately avoids the vehicles in the middle of the road.

According to shanghai securities news, on December 21st, a related person from Celestial (601127.SH) revealed that this large-scale new energy SUV jointly designed by Celestial and Huawei had already harvested 33,000 blind designs before it went on the market. In addition, recently, Zhang Xinghai, Chairman of Sailis, intensively visited the core supply chain enterprises of AITO M9, and made in-depth preparations for "supervising the war".

Previously, Yu Chengdong, managing director of Huawei, CEO of terminal BG and chairman of automotive intelligent solution BU, once said that it "will redefine the best intelligent SUV within 10 million yuan."

The first financial news, after asking the world and the intellectual world, Huawei Smart Car Alliance is welcoming more members.

The First Financial Reporter found that since the beginning of this year, Huawei is intensively registering the trademarks of "Wen Zi Generation" and "Jie Zi Generation", and the number of registered trademarks has reached nearly 20 respectively.

Among them, the trademarks of "Jiezi Generation" include Tengjie, HarmonyOS Jiejie, Qiqie Jiejie, Xiaoxie Jiejie, Lanjie, Xuanjie, Zhijie Jiejie, Zhiyie Jiejie, Xiangjie Jiejie, Haojie, Yijie Jiejie, Hejie Jiejie, Youjie Jiejie, Youjie, Yaojie and Tongjie Jiejie.

The trademarks of "Wen Zi Generation" include Wen Xiao, Wen Qing, Wen Speed, Wen Xing, Wen Hao, Wen Chi, Wen Cang, Wen Yao, Wen Yue, Wen Hao, Wen Kun, Wen Teng, Wen Xiao, Wen Ling, Wen Ji, Wen Jing and Wen Zhou.

In addition, Huawei has even applied for a "far ahead" trademark of means of transport, while the applied "HarmonyOS Zhixing" trademark is in the stage of "waiting for substantive examination".

A few days ago, after the consultation, the second smart car brand Zhijie jointly built by Huawei and Chery was officially unveiled, and its first model, Zhijie S7, also started pre-sale. At present, the booking volume has exceeded 10,000.

The cooperation modes between Huawei and car companies can be divided into parts supply mode, HI mode (solution mode) and intelligent car selection mode. Among them, intelligent car selection mode is the most involved mode of Huawei in car manufacturing, and it is also the relatively rapid and mature mode of Huawei’s landing in automobile business at present.

With the addition of the intellectual community, Huawei’s "Automobile Corps" has gradually moved towards the road of scale replication. Recently, Huawei’s intelligent car selection model has been officially upgraded to "HarmonyOS Zhixing", that is, "HarmonyOS Smart Car Technology Ecological Alliance", in which both the intellectual community and the intellectual community have been included. Since then, the smart car eco-brand alliance built by Huawei has begun to take shape.

The First Financial Reporter learned that at present, HarmonyOS Zhixing has two merchants, AITO and Zhijie, on an open platform, and the officially recommended products also include Wenjie M5, Wenjie M7 and Zhijie S7.

Yu Chengdong, managing director of Huawei, CEO of BG and chairman of BU, a smart car solution, said at the above-mentioned press conference that Huawei’s smart car selection model is HarmonyOS Zhixing, and now there are four partners, including Celeste (601127.SH), Chery, Jianghuai Automobile (600418.SH) and Beiqi Blue Valley (600733.SH).

At the beginning of this year, Yu Chengdong once said that Huawei wanted to build an eco-brand alliance of smart car selection, so as to facilitate Huawei’s unified marketing, service and retail with more smart car selection partners in the later period and reduce the complexity of the work. He also explained, "There is no conflict between the car companies that cooperate with Huawei to make smart selection mode. Some make SUVs, some cars, some make MPVs, some make B+ cars, some make C-cars, and some make D-cars. The products made by each car factory do not overlap. I hope they can be combined to become a complete solution in a car system. We will make full use of the production capacity and resources of the car factory and will not waste resources repeatedly.

At present, there are mainly two SUV models under the ownership of Zhijie, and the first model in Zhijie is positioned as a C-class pure electric car. It is reported that the first model jointly developed by Jianghuai Automobile and Huawei is a high-end new energy MPV, and the price may be in the millions. The new car is expected to be mass-produced in the first half of 2025, and the production line is still under construction. The smart car of Beiqi Blue Valley and Huawei is a high-end pure electric car, which will be launched in 2024.

Some observers believe that Huawei may strengthen the label of "HarmonyOS Zhixing" and strengthen the market’s awareness of "HarmonyOS Zhixing" as a smart car selection business.

The reporter learned that at the upcoming Guangzhou Auto Show, the intellectual and intellectual circles will not participate separately, but will jointly participate in the exhibition under the name of "HarmonyOS Zhixing" to jointly exhibit the intellectual circles M5, M7 and S7.

Original title: Intensive registration of trademarks of "Ask Word Generation" and "Boundary Word Generation", and accelerated landing of Huawei HarmonyOS Zhixing Alliance.

Editor: Li Zhoufang Editor: Wu Zhonglan Audit: Feng Fei

　　Although I have heard the name of quantum computer countless times, like all concepts with the word "quantum", most people don’t know it.

　　The concept of quantum computer was put forward in 1980s, and it has been put into research and development for 20 years. So far, none of them has really gone out of the laboratory. But it is said that it will be very powerful. Google, IBM, Alibaba and many start-ups are competing to be the first to achieve "quantum hegemony", that is, to make quantum computers faster than traditional computers in a computing task.

　　After a superficial understanding of the principle of quantum computer, you will find that it is not much different from the computer we are familiar with.

　　Quantum computer: a quantum version of the computer

　　"Don’t think of the quantum computer as a brand-new system, it is an extended version of the classic computer, imitating the classic computer everywhere." Professor Han Zhengfu, chief scientist of Anhui Wentian Quantum Technology Co., Ltd. and key laboratory of quantum information of Chinese Academy of Sciences of China University of Science and Technology, told the Science and Technology Daily reporter.

　　Han Zhengfu said that the classic computer represents the number 1 or 0 by the voltage level, which is a bit.

　　The quantum computer corresponds to a quantum bit (Q-bit), which may be an electron whose spin arrow is up or down, or a light wave that vibrates vertically or horizontally … …

　　Traditional computing circuits are composed of various "logic gates", which correspond to various "quantum logic gates" of quantum computers. According to certain rules, the 0 and 1 of storage bits are changed.

　　Han Zhengfu said: "The traditional computer is played like this: a row of memory bits is written with an initial value (such as 10011001). Next, several steps are performed, and at each step, the numbers in the memory are transformed into another set of numbers. Stop after the program and read the numbers inside, such as 00101010, which is the calculation result. " The same is true of quantum computers.

　　The difference between quantum computers is that Q-bit is particularly flexible and not as rigid as Bit. It is both 0 and 1. For example, it is 60% 0 and 40% 1. This gives it super powers. You have to learn a little quantum mechanics to understand the mystery of Q-bit.

　　Fuzzy and accurate Q-bit

　　What do you mean, "it’s 60% 0 and 40% 1"?

　　Take a refresher course in senior high school physics: Experiments at the beginning of the 20th century found that substances are too small to be measured accurately. Because measurement means interference, even if you only look at it. When the object is so small as quantum level, its state will be completely destroyed by observation. By the way, the "touch-and-break" effect is used in quantum communication. Using quantum to carry the password can make it possible for someone to eavesdrop on this password signal and will certainly be found out. ) This is called "uncertainty principle". The smaller things are, the more blurred they are. You go to measure the position of an electron, this time in Beijing and next time in Tianjin. We can only say that a quantum "has a high probability of being in Beijing", "has a high probability of spinning arrows rushing up" and "has a high probability of lying flat and vibrating" … …

　　These probabilities can be determined by multiple measurements, although the reading of a single measurement is not necessarily.

　　Therefore, quantum bits are fuzzy and accurate: when the same number is read, 0 is read, and sometimes 1 is read; But after reading it many times, the probability of 0 will tend to a constant value, such as 60%.

　　Why is quantum computing faster?

　　"In a traditional computer, a high voltage is superimposed on another high voltage, which is still a high voltage; The superposition of qubits is different. " Han Zhengfu said.

　　Quantum bits store a vector, just like a clock, which corresponds to the probability.

　　The hour hand can point to zero (the qubit reading is 100% 0) or to three (the reading is 100% 1). Or point to 1: 30 (50% is 0 and 50% is 1), or point to any angle.

　　Traditional computers store "10011001".

　　Quantum computers store "bells, bells, bells, bells". Please imagine a row of clocks hanging in the lobby of the hotel.

　　In traditional calculation, 1 and 0 are superimposed to 1, and then a 1 is superimposed to get 0.

　　In quantum computing, the superposition of "three points" and "zero point" is "1: 30", and then the superposition of "three points" results in "2: 15".

　　Q-bit is more expressive than bit. A Q-bit can contain infinitely complex numbers. In this sense, "one is more than one". A Q-bit input transformation is equal to the transformation of multiple digits together, which is called "parallel calculation".

　　When the potential of parallel computing reaches its limit, the computing power of quantum computer is 2 n ∶ 1 compared with traditional computer.

　　But it should be emphasized that the results of quantum computers come from probability statistics. Quantum computer is different from tradition, it has to repeat the program again and again, and read it again and again (the result is different every time). Repeatedly, enough times (the reliability of probability exceeds 99.99999%), the ratio of each qubit to 1 and 0 is counted, and that is the required number. So when it comes to less complicated computing tasks, quantum computing may be slower than classical computers.

　　Rainbow and zebra

　　Before the advent of quantum computers, mathematicians were imagining to use the "rich connotation" of quantum bits to greatly reduce the calculation time. But so far mathematicians have only proved that quantum computing is much faster than traditional computers in two scenarios.

　　The first is to crack RSA algorithm. RSA is the most commonly used encryption method at present, and its mechanism is the difficulty of factorization — — Multiplying two large prime numbers is very simple, but splitting the product into two prime numbers may take tens of thousands of years for the computer.

　　Therefore, banks can send a number of thousands of digits publicly and master its two prime factors without worrying about someone working out these two prime factors — — Used to make private digital keys.

　　But more than 20 years ago, Peter Shor proved that an algorithm based on quantum computer can easily decompose factors, which also greatly increased the interest of academic circles in developing quantum computers.

　　Another possible application is "searching large unordered databases", or "looking for a needle in a haystack". Traditional computers can only compare targets one by one, while quantum computers can calculate in parallel. If the traditional computer time is t, the quantum computer time is "root t" The former takes 1 million hours, while the latter can be solved in 1,000 hours.

　　In addition to the above two kinds of calculations, quantum computers are also expected to make great achievements in chemistry, pharmacy and other fields in the future. The reason is: unlike traditional computers, quantum computers are real analog computers, which can reproduce the real nature (physicist Feynman first pointed this out).

　　The 0 and 1 of traditional bits are equivalent to black and white, and the "hour hand that can point at any angle" of quantum bits is equivalent to a full-color spectrum, which can display any color.

　　If the traditional memory is zebra, the quantum memory is rainbow. The world is colorful, and it is certainly more direct and convenient to describe the world with rainbows.

　　Just getting started

　　Quantum is very fragile and will collapse easily.

　　"To encode information in a very tiny thing, such as an electron or a nucleus, we must first isolate it and let it not work with the surrounding area. This subtle control is very difficult. " Han Zhengfu said.

　　All kinds of quantum carriers are accompanied by unique difficulties, for example, photons are always advancing, and electromagnetic fields can’t control them, which is very troublesome to control. At present, researchers are probably experimenting with dozens of carriers: electrons, photons and ions in traps … …

　　Han Zhengfu said: "The Key Laboratory of Quantum Information of the Chinese Academy of Sciences, which belongs to the Chinese University of Science and Technology, now has more than 50 associate professors, 150 doctoral students and nearly 30 postdoctoral students. There are many different groups in a team. Although the things studied are understandable to each other, there are specialties in the field, such as ‘ Make silicon ’ Some people will study the processes that the semiconductor industry cares about, such as exposure and cleaning; ‘ Do light ’ Research laser generators, oscillators, optical fibers and the like. "

　　"Domestic research on quantum optics began in the early 1980s. There are many more people now, but they are still unpopular. Professionals are scarce. " Han Zhengfu said, "In fact, there are not enough talents in the world. So Google spent hundreds of millions of dollars to dig a team from the University of California, Santa Barbara, mainly studying superconducting quantum computers. "

　　At present, major companies and research institutions are still improving the quantum bit quantity — — Strive for dozens of quanta to be stable at the same time, and don’t collapse too quickly. Superconducting machines cost millions of dollars to make the environment close to absolute zero. The engineering experimental machine is improving, but it is not known when it will be practical.

　　Looking back at the first computer ENIAC in 1946, 18,000 electron tubes were used, which were glass tubes in which electrons were evacuated and flew. ENIAC weighs 30 tons and only calculates 5000 times per second. Without the semiconductor revolution more than ten years later, there would be no computers and mobile phones today.

　　It should be said that the quantum computer has just entered its "electron tube era". (Science and Technology Daily reporter Gao Bo)

　　Developing autonomous driving technology is an important content of building a transportation power. In recent years, with the rapid development of new technologies such as artificial intelligence, 5G and big data, the application of autonomous driving technology in the field of transportation has been accelerated, and the rapid iteration from closed site testing to road testing and from pilot demonstration to commercial trial operation has been realized.

　　The Ministry of Transport recently issued the "Guide to Transportation Safety Services for Self-driving Vehicles (Trial)" (hereinafter referred to as the "Guide"), which made it clear for the first time from the national policy level that intelligent networked vehicles can be used for transportation business activities, and pressed the "acceleration button" for the commercial application of self-driving technology in China.

　　What is the development of autonomous driving technology at present? How to improve the safety guarantee ability of autonomous driving? The reporter interviewed the relevant person in charge of the Ministry of Transport and relevant experts.

　　The market scale is growing rapidly, and it is steadily moving towards commercial application.

　　"With the joint efforts of all parties, in recent years, China’s autopilot-related industries and market scale have shown a rapid growth trend, and autopilot technology has steadily moved from testing and demonstration to commercial application." Zhang Jinhua, chairman of China Automotive Engineering Society, introduced.

　　The industrial development environment continues to improve. At present, 17 national-level test demonstration zones, 7 national-level vehicle networking pilot zones and 16 "Shuangzhi" pilot cities have been built nationwide, with a cumulative open test road of over 22,000 kilometers and a cumulative test mileage of over 70 million kilometers. Beijing, Shanghai, Guangzhou, Shenzhen and other cities have introduced policies to allow self-driving cars to engage in commercial trial operation of urban public buses, taxis, logistics and distribution in specific areas and at specific time periods, and the application scale has been expanding.

　　In Shunyi District, Beijing, hundreds of bright yellow automatic delivery vehicles appeared in the streets and lanes, waiting for traffic lights side by side with pedestrians, or avoiding other vehicles safely on the road. "After years of iterative upgrading, unmanned delivery vehicles can not only ‘ Get ’ , can provide consumers with ‘ Send it quickly ’ Service experience. " The person in charge of the automatic delivery department of Meituan said that at present, in Shunyi, the daily delivery orders of automatic delivery vehicles of Meituan have reached thousands.

　　In the Economic Development Zone of Wuhan, Hubei Province, open the "radish run" taxi software, and you can quickly call an unmanned self-driving car by setting the starting point and the ending point. Passengers click "OK" on the back screen, and the vehicle can travel according to the established route. "The fisheye camera and laser sensor on the roof device can help the vehicle avoid obstacles accurately and automatically adjust the speed according to the road conditions." According to the person in charge, 300 driverless cars have been put into operation since the unmanned self-driving travel service was opened in Wuhan in August 2022, covering a population of over 4 million.

　　The application of industry innovation has accelerated. Scene-level autonomous driving solutions have accelerated to maturity, and some autonomous driving products have reached the conditions of mass production application, and have been applied to transportation service scenes such as urban travel and freight logistics on a certain scale, and new formats such as autonomous parking service and unmanned distribution have emerged continuously. At present, there are more than 200 self-driving city buses, more than 1,500 self-driving taxis and about 1,000 self-driving trucks in China. Baidu Apollo autopilot test has a total mileage of more than 78 million kilometers, and its travel service covers more than 10 cities.

　　With the continuous expansion of market scale, it is urgent to strengthen industry norms. "At present, the basic requirements for using self-driving cars for transportation operations are still unclear, which is not suitable for the healthy and orderly development of self-driving cars, and the safety pressure is increasing." The relevant person in charge of the Transportation Service Department of the Ministry of Transport said that the Guide clarified the basic requirements for using self-driving cars to engage in transportation business activities under the framework of current laws and regulations, and guided the healthy development and standardized application of self-driving cars in the field of transportation services in an orderly manner while ensuring transportation safety.

　　Build a security system to provide compliance for business activities.

　　Transportation services are related to the national economy and people’s livelihood. Continuously improving the safety and security capability is the primary goal of transportation services, and it is also the basic requirement for the promotion and application of self-driving cars in transportation services. Sorting out the measures in the Guide, the word "safety" runs through.

　　"Adapting to the development trend of autonomous driving, the Guide focuses on ensuring the transportation safety of autonomous vehicles. Under the condition of meeting the requirements of relevant departments for the access and road traffic of autonomous vehicles, it puts forward requirements for the production conditions and qualifications of transportation operations, dynamic supervision and emergency handling of vehicle operation, and operational supervision, and guides the transportation safety services of autonomous vehicles in all directions and in the whole chain." Zhang Jinhua said.

　　In terms of technical standards, the Guide clarifies the technical requirements for self-driving cars, emphasizing that "self-driving cars engaged in taxi passenger transport, road passenger transport and road cargo transport should also meet the requirements of technical standards for operational motor vehicle safety in the transportation industry". "This move has achieved the connection with the management boundary of self-driving cars in the departments of industry, information and public security." Li Bin, vice president of the Highway Research Institute of the Ministry of Transport, said.

　　In terms of personnel allocation, the Guide specifically puts forward the concept of "safety officer" in view of the safety problems during driving.

　　"The on-board driver or operation safety guarantee personnel of the self-driving car is ‘ Safety officer ’ 。” Li Bin said that the Guide fully considers the business models of self-driving transportation with different formats, and provides for the allocation, skills and qualification requirements of safety officers engaged in different transportation business activities by classification on the premise of ensuring safety. Among them, in view of the application scenario of fully self-driving cars engaged in taxi passenger transport, the form of personnel support for remote safety officers is put forward in particular, and it is clear that "with the consent of the people’s government of the district and city, remote safety officers can be used when operating in designated areas, and the ratio of people to vehicles of remote safety officers should not be less than 1: 3".

　　"Overall, the Guide has built a safety guarantee system from six aspects: safety production system, transportation safety guarantee, running state information management, vehicle dynamic monitoring, safety notification and emergency response." Li Bin believes that under the premise of being consistent with the current road transportation management, the Guide fully combines the new characteristics of self-driving car transportation, and provides compliance for self-driving cars to engage in road transportation business activities safely.

　　Classified scenarios provide normative guidance to accelerate the application of technology.

　　As a new technology, autonomous driving has been widely used in various transportation service scenarios. Different scenarios have different design and operation conditions, different security risks and different risk level requirements. In order to further ensure safety, "classified policy" has become a highlight of the Guide.

　　The Guide clarifies the application scenarios of self-driving cars to carry out road transport services. For urban public buses and trams, related passenger transport business activities can be carried out under the scenes of physically closed, relatively closed or simple road conditions with fixed lines and controllable traffic safety; For taxis, passenger transport business activities can be carried out in the scene of good traffic conditions and controllable traffic safety; At the same time, self-driving cars are prohibited from engaging in road dangerous goods transportation business activities. At the same time, the Guide clarifies the requirements for "self-driving transport operators", and taxi passenger transport and road passenger transport should be insured with carrier liability insurance according to law.

　　"Standardizing the application of self-driving cars in the field of transportation services by classification, scene and level will effectively guide all kinds of transportation service business activities to carry out self-driving applications, effectively ensure the safety of self-driving transportation services, and promote the healthy and orderly development of commercial applications of auto-driving." Wang Advanced, vice president of the Research Institute of the Ministry of Transport, said.

　　The overall scale of China’s automobile industry remains in the forefront of the world, and the production capacity and application technology level have been greatly improved. As an important breakthrough to improve the level of industrial intelligence, autonomous driving has been valued and supported by relevant departments.

　　In 2020, the Ministry of Transport issued the Guiding Opinions on Promoting the Development and Application of Road Traffic Autopilot Technology; In 2021, the Ministry of Industry and Information Technology issued the Opinions on Strengthening the Access Management of Intelligent Networked Automobile Manufacturers and Products; In November 2023, four ministries and commissions, including the Ministry of Industry and Information Technology, issued the Notice on Launching the Pilot Work of Intelligent Networked Vehicle Access and Road Access, which covered the key links of vehicle use, such as production access and road management of automobile products, and the management policies for the production and use of self-driving vehicles were gradually established … … In recent years, various ministries and commissions have accelerated the research on policies related to the commercial application of autonomous driving and issued a series of policy documents.

　　"The increasingly perfect industrial development environment has made it possible for self-driving cars to accelerate their application in transportation services." Wang Advanced said that the release of the Guide has established a safe bottom line for the application of self-driving cars, and also left enough room for the innovative application of autonomous driving, which will further promote the application of autonomous driving technology in the transportation field.

　　Upward oblique push-ups

　　Standard push-ups

　　Downward oblique push-ups

　　L extension

　　Flexion and extension of sitting arm

　　Hip bridge

　　Alternate forward arrow squat

　　plank

　　Moderate exercise can not only maintain good physical function and enhance the athletic ability of skeletal muscles, but also help officers and men to relieve anxiety and maintain an optimistic and positive attitude towards life. Here are some recommended fitness exercises that can be done at home.

　　Practice chest muscle movements — — Push-ups According to the difficulty of the action, it is divided into upward inclined push-ups, standard push-ups and downward inclined push-ups. When doing push-ups, be careful not to collapse, hips or shoulders. Upward inclined push-ups are suitable for beginners, while downward inclined push-ups are suitable for people who can easily do standard push-ups. It is suggested that each group should have 10-15, with 3-4 groups at a time.

　　Stimulate back muscle movements — — L-shaped extension L-shaped stretching can stimulate back muscles, enhance back muscle strength, maintain the stability of thoracic vertebrae, relieve muscle tension caused by long-term desk work and reading, and make people stand tall and straight. It is suggested that each group should have 10-20, with 2-4 groups at a time.

　　Practice upper arm movements — — Sitting posture, arm flexion and extension. Flexion and extension of sitting arm can exercise triceps brachii, improve arm strength and protect shoulder joint. This action can be done by the bed, in front of the TV cabinet or with a stable chair. It is suggested that each group should have 10-20, and each group should have 2-3.

　　Practice hip muscle movements — — Hip bridge. The gluteal bridge can directly stimulate the gluteus maximus, which is helpful to stabilize the hip joint and improve the forward inclination of pelvis. At the same time, it can also activate the deep stable muscle group, strengthen the core and prevent low back pain. Be careful not to use arm strength to prop up your body when doing this action. It is suggested that 10 should be a group and 2 groups should be trained.

　　Lower extremity motor ability training — — Alternate forward lunges. Strong lower limb strength can improve the flexibility and stability of body movement. Training the exercise ability of lower limbs can not only burn fat, but also strengthen joints and reduce the chance of injury during exercise. When doing this action, be careful that the knee joint does not exceed the toe, do not buckle internally, and keep in line with the toe direction to avoid putting pressure on the knee joint. It is suggested that 10 should be a group and 2 groups should be trained.

　　Core muscle group training — — Flat support. Plate support is a static exercise, which strengthens muscle strength by exercising core muscle groups, maintains the stability of spine, pelvis and scapula, and shapes the lines of waist, abdomen and buttocks. When doing flat support, be careful not to bend your back, bow your back or get on your hips. At the beginning, you can aim at supporting for 1 minute. If you can’t finish, you can increase the distance between your feet and reduce the difficulty.

"With the continuous increase in R&D investment by Android manufacturers and upstream supply chains, the hardware technology has improved and matured, the application of software systems has been optimized, and the consumer experience has been continuously improved. The further decline in prices has also made more consumers willing to use folding screen mobile phones early. "

On February 20th, the latest quarterly tracking report of mobile phones released by International Data Corporation (IDC) showed that in the fourth quarter of 2023, the market shipment of folding screen mobile phones in China was about 2.771 million units, up 149.6% year-on-year. A number of new products from Huawei, OPPO and Glory promoted the rapid growth of the folding screen market in this quarter.

In 2023, the China folding screen mobile phone market shipped about 7.007 million units, up 114.5% year-on-year. Since the launch of the first product in 2019, the folding screen mobile phone market in China has grown by over 100% year-on-year for four consecutive years.

However, folding screen mobile phones still often appear "the screen is not resistant to falling, the maintenance price is expensive, and the screen itself is prone to problems". Guo Tianxiang, senior analyst of IDC China, told the Beijing News Shell Finance reporter that with the continuous progress and maturity of technology, especially the increasing participation of domestic supply chains, some problems related to folding screens will continue to improve. "But it still takes more time to completely solve it."

The price of folding screen dropped to 400-600 dollars.

The market share of transverse folding products increased to 68% again.

The price of folding screen mobile phone continues to drop. According to IDC data, in 2023, the share of mobile phones with folding screens above $1,000 has dropped from 81.0% a year ago to 66.5%, down 14. 5 percentage points year-on-year. In addition to the overall cost reduction, the products in vertical folding form are relatively cheaper, which also makes the price of folding screen drop to the price range of 400-600 dollars in 2023.

In terms of product form, horizontal folding products are more popular with consumers in China. Although the price of vertical folding products is relatively lower, horizontal folding products have been favored by more consumers in China because they can better reflect the big screen experience of folding screen mobile phones. In 2023, the market share of transverse folding products increased to 68.1%, up by 10.4 percentage points year-on-year.

At present, the vertical folding products are not only easy to carry, but also consumers still lack the necessary use scenarios. At the same price, there is also a clear gap between the use experience and the straight board machine, and there is still room for improvement in product quality.

IDC pointed out that the importance of horizontal folding products in the mobile office scene of high-end business people is increasing. At the same time, the high-end people pay less attention to the price, and are more willing to choose the horizontal folding products with full product configuration.

Recently, it has been reported that individual mobile phone manufacturers have stopped planning to release new small folding models this year. In this regard, Guo Tianxiang said to the Shell Finance reporter that it is mainly a demand issue. "There is no rigid requirement for vertical folding usage scenarios. The sales volume is not up, the price is not high, and the product quality problems lead to great after-sales pressure, and the final cost is high, and most manufacturers are losing money. Individual manufacturers are not saying that they will not do it at all, but they will be suspended. When the supply chain technology is more mature and the cost and quality are better, they may come back. "

Huawei occupies the first place in the domestic folding screen market in 2023.

Folding screen is still the key product of various manufacturers in 2024.

In terms of the market performance of folding screen mobile phone manufacturers, the above report pointed out that Huawei Mate X5 series has been in a state of price increase since its listing, and the supply is in short supply, helping Huawei firmly occupy the first position in the domestic folding screen market in 2023, with a market share of 37.4%.

OPPO gained 18.3% market share and ranked second in the overall folding screen market; Among them, the market share of vertical folding products ranks first with 36.3%; The horizontal fold Find N3 series has been widely praised around the world.

Glory made great efforts in the folding screen mobile phone market in the second half of 2023, and won the third place in the folding screen mobile phone market for the whole year with the hot sales of Magic V2 and other new folding products, with a share of 17.7%, and the shipment volume increased by 467.0% year-on-year, with the fastest growth rate.

Samsung occupies more than half of the global folding screen mobile phone market, but ranks fourth in the highly competitive China market with 11% market share. Vivo ranks fifth, and its first 5G horizontal folding product X Fold 2 released in 2023 is about to be replaced.

Guo Tianxiang concluded that "thinness" has become the primary factor affecting consumers’ choice of folding screen mobile phones. However, if the pursuit of "thinness" blindly leads to the decline of reliability, it will directly affect consumers’ long-term choices in the future. However, the use scenario of vertical folding products has not been fully discovered, and products that position potential users as "fashionable young women" will form direct competition with Apple.

"Folding screen mobile phones are still the key products of various manufacturers in 2024. The participation of more manufacturers and the launch of more products will continue to promote the rapid development of the folding screen mobile phone market. " Guo Tianxiang said.

In addition to the flexible size of the screen itself, will there be some new innovation highlights compared with the straight board machine? In this regard, Guo Tianxiang responded to reporters that vertical folding products are more convenient to carry after folding. Horizontal folding products are mainly the advantages of large screen, but more need to be reflected by the adaptation of software system applications.

Beijing News Shell Financial Reporter Sun Wenxuan

Editor Yue Caizhou

Proofread Liu Baoqing