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Looking forward to the new easy square concept car to improve safety redundancy

　　Recently, a brand-new concept car was officially released. The new car is based on the design of steering column and brake caliper, aiming at achieving a higher level of safety redundancy. Let’s see what’s special about this car.

　　It can be seen that this concept car is based on looking up at U8. But what it actually wants to convey to us is a brand-new security technology. Compared with the traditional car, it has neither steering column nor brake caliper, but it can turn, turn around and brake.

　　So how does it achieve these functions?

　　As we all know, the steering angle of the steering wheel is controlled by the steering gear and the tie rod when the conventional vehicle is steering, so as to realize the steering of the vehicle. Looking up at this easy-to-square concept car, the required steering angle is calculated according to the driver’s steering intention, and different torques are applied to the left and right front wheels to deflect the steering tie rod and realize wheel steering. Through the fusion control of rear axle differential and front axle differential, the vehicle stability during steering is realized.

　　And at this stage, relying on the powerful motor, the average steering control error of this concept car is less than 3%, which is not much different from the traditional mechanical steering control experience. In addition, through the fusion control of rear axle differential and front axle differential, the vehicle stability during steering can be realized. Therefore, in some emergency steering situations, the stability close to the traditional steering can be achieved.

　　The principle is actually very simple, but in the whole steering process, it is necessary to control the four-quadrant torque of the steering wheel more finely, so as to realize the accurate control of vehicle drive, steering wheel angle and vehicle yaw angle, and the technical difficulty is actually very high. And in order to enable users to continue the operation logic of conventional vehicles when using differential steering technology, it is also necessary to optimize the steering operation experience of the whole vehicle for many times.

　　The traditional braking method is to push the friction plate to clamp the brake disc through the hydraulic cylinder to generate friction torque and realize braking. Looking up at the concept car, the braking is realized by controlling four driving motors to generate electromagnetic resistance torque by reverse dragging.

　　Easy Sifang has four high-power motors with peak power of 220-240kW, which is the basis for its calipers-free braking. Relying on these four powerful and independent motors, the maximum braking deceleration of 1.0g can be achieved, and the maximum friction force between each tire and the ground can be accurately calculated, the braking torque of four wheels can be distributed in real time, and the optimal slip rate of tires can be accurately controlled to keep the vehicle with the best braking performance. In addition, the response speed of this innovative braking system only needs 20 milliseconds, far exceeding the industry level of hydraulic braking of 200 milliseconds.

　　Some people may ask, what is the significance of braking and steering without relying on mechanical structure for a car? First of all, this technology can play a great role in the small probability emergency when the braking system or steering system of the vehicle fails to work, helping the driver to realize the deceleration braking and turning of the vehicle and avoid accidents. Don’t underestimate these small probability events, which may cause extremely serious consequences.

　　Looking up, I think that since I want to build a high-end, I need these security redundancies. In any case, we should praise the behavior of broadening the safety boundary of the whole vehicle and pushing the safety of the vehicle to a new height. The appearance of this concept car not only gives the automobile industry a new idea in safety, but also creates a new direction of integrated control of chassis and power technology, which provides more possibilities for automobile development.

Aiming at the three major market segments, BIC Power released a new generation of 21700 all-pole ear series small power batteries.

On March 27th, Shenzhen Bike Power Battery Co., Ltd. released a new generation of all-polar-ear series small power battery products, aiming at the three market segments of smart life, power tools and micro-traffic, so as to solve the shortcomings of smart terminals such as insufficient battery life, insufficient power and slow charging, and help the user experience to upgrade in an all-round way. This new product adopts the same full-lug design as the large cylindrical battery, and explores a new path to improve the high-power performance of lithium batteries.

Bike Power has been focusing on the research and development of cylindrical lithium batteries for more than 20 years, and has successively developed three generations of small power batteries. Different from the first-generation traditional unipolar ear structure and the second-generation bipolar ear structure, BIC’s third-generation small power battery adopts full-ear design, showing six characteristics of high power, low internal resistance, low temperature rise, fast charging, long cycle and high capacity. The maximum charging current is increased to 5C, the maximum discharging current is increased to 25C, and the service temperature is widened to-40℃ ~ 80 C, which solves the pain point of high internal resistance in the traditional structure of cylindrical batteries.

The three new products released by BIC Power accurately solve the pain points of market segments with different characteristics. INR21700-40D was born to meet the most demanding application scenarios of professional-grade electric tools, with higher charge-discharge rate, reaching continuous discharge of 100A and pulse discharge of 140A, which can be fully charged in 12 minutes, with a life span of 600 weeks. Compared with the traditional 4.0Ah power tool lithium battery, the internal resistance is reduced by 80%, the discharge current is increased by 120%, and the cycle life is increased by 140%.

INR21700-45D serves consumer electronics such as intelligent cleaning tools, micro-trip application scenarios such as household electric tools and electric motorcycles, and gives consideration to high-capacity and high-power performance, thus achieving the purpose of prolonging battery life and increasing energy utilization, with a continuous discharge of 70A, an internal resistance of only 3.4mΩ, and full charge in 15 minutes, easily coping with various intelligent life scenarios.

INR21700-50D is prepared for electric motorcycles adapted to special scenes such as beaches, bushes, racing professional tracks, etc. It has a higher capacity of 5.0Ah, can discharge continuously for 60 years, and can discharge with pulses of 100A, meeting the requirements of long battery life and instantaneous high current acceleration of high-speed electric motorcycles. Support ultra-low temperature -40℃ discharge; 3.6mΩ internal resistance to achieve efficient heat dissipation, 15 minutes to charge 80%, accelerate the electrification of micro-traffic field, to achieve smooth and worry-free.

Based on the whole series of three new products, BIC battery will exert its strength in both professional and consumer markets at the same time, constantly broadening the breadth and depth of the deepening industry and bringing a continuous refreshing experience to end users.

Song Huajie, the person in charge of small power product development of BIC battery, said: BIC Power has always maintained a keen insight into market changes, and the technology-enabled lifestyle has made the terminal equipment driven by electricity enter every corner of life. In the future, mobile intelligent terminal devices with stronger computing power and richer functions will be more used in our daily life. As one of the core components, the performance of lithium-ion battery determines the "shape" of intelligent terminal products and the "boundary" of usage scenarios. The release of the new generation of all-polar-ear series small power batteries is not only a strong proof of the technical strength of Bigram batteries, but also our determination to empower more extreme scene needs with technological innovation and add more yards to market applications and terminal experience.

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Chen Kexin’s mobile phone shooting ＂Three Minutes＂ touched people’s hearts.

　　These days, a short film "Three Minutes" has exploded the circle of friends, which tells an unusual reunion in Spring Festival travel rush. The story is very simple. The mother in the film is a train attendant on the "Nanning to Harbin" line. It is the busiest time to work overtime during the Spring Festival, and her son Ding Ding, who is about to go to elementary school, misses his mother, so he asks his aunt to take him to the train station next to his home and meet him while his mother’s train stops on the platform for 3 minutes. This Spring Festival travel rush-themed short film was shot by Hong Kong director Chen Kexin, and the content of the short film was based on a true story. After the short film was launched, it was played more than 13 million times on Youku in one day. Enthusiastic netizens also found the prototype of the story.

　　The story is based on true events.

　　The joy in the compartment or the joy of meeting relatives on the platform are the most familiar memories of the Spring Festival. This can’t help but remind people of the mainland realistic film "Dear" filmed by Chen Kexin a few years ago. The strong local flavor and sense of reality in the film will also surprise people that the film was produced by a Hong Kong director.

　　Outstanding storytelling ability, keen perception of details, concern for reality and strong humanistic feelings are Chen Kexin’s consistent styles. Chen Kexin said that although he has no experience in Spring Festival travel rush, the Spring Festival and reunion are the themes he has been paying attention to for many years. "I can fully imagine the joy and happiness when Spring Festival travel rush comes home." When "Three Minutes" was filmed in Chongqing, Chen Kexin saw the crowds surging on the platform. Although there were all extras in front of him, he was still infected by this feeling of returning home. When the audition actors sang the song of returning home for the New Year, he said that he was also moved to tears.

　　The short film touches the audience, not only because the flight attendants are busy on the train every Spring Festival, but also because the most critical structural design of the plot is that after the train stops at the platform, the mother and son meet for only 3 minutes. Three minutes, the sense of time limit brought by this reunion is the tension of the plot. The short film specially emphasizes this sense of time with the creative idea of 3-minute countdown. In the film, the countdown number is displayed at the top of the screen, which reminds the audience that the separation time between mother and son is approaching from the time the train enters the station. When entering the station, my mother saw her son on the platform through the window, but when the door opened, she had to help the passengers get on and off first, so she couldn’t find her son at the first time. Because there were too many people on the platform, my son couldn’t find his mother at the first time. When the child found his mother through the crowd on the platform, the time of 3 minutes has become 2 minutes. When the mother and son met and hugged, the mother waited for her son to speak with eager eyes. An interesting scene happened. After a moment of silence, the son began to recite the multiplication formula loudly. It turned out that my mother had joked with her son who was about to go to elementary school, "If you can’t recite the multiplication table, you can’t go to school, let alone see your mother." On the platform, my son didn’t recite the formula fluently, and at this time, the countdown on the screen was changing rapidly. The mother didn’t know what to do, and she couldn’t bear to interrupt her son. The tense countdown contrasted with the child’s stuttering recitation, which touched the audience’s mood. When my son recited the multiplication formula, the train started. The brief reunion of mother and son left the audience with endless aftertaste without a few words of dialogue.

　　During the Spring Festival travel rush season, many people are close to their relatives because of their work, but they can’t stay. The short film "Three Minutes" is based on such a real thing. After the short film was screened, some enthusiastic people found the prototype of the story in the film. She is Liu Zhong, the conductor of the Shenzhen-Urumqi team of Guangzhou Bureau Group Co., Ltd. of China Railway. On January 24, 2017, the media reported the story that Liu Zhong met his son Chen Hongjin (nicknamed Ding Ding) during the four minutes when the train stopped at Hengyang Station after passing through his hometown in Hunan. At the premiere of Three Minutes, director Chen Kexin said that when he first saw the story, he decided to shoot it. In the short film, Tintin recited "99 Multiplication Table" to his mother. In reality, Tintin showed his mother "ma ma wo ai ni" written in pinyin.

　　For Chinese people, Spring Festival travel rush is a journey to return home or find their own roots. The director Chen Kexin from Hong Kong has never experienced Spring Festival travel rush, but he has touched countless audiences with simple pictures, regardless of Spring Festival travel rush in the short film.

　　Mobile phone shooting movies has its own advantages.

　　This 7-minute short film continues Chen Kexin’s narrative style of paying attention to reality and storytelling. What’s more special is that it is a short film shot with a mobile phone all the time, and it is also the first time that Chen Kexin was invited by Apple to shoot a short film with a mobile phone. When sharing his own shooting experience, Chen Kexin said that "Three Minutes" gives the audience some perspectives that traditional films can’t touch. The current mobile phone photography technology has reached a very high level, which can not only record people’s daily life, but also serve as a lens supplement to traditional film photography. In "Three Minutes" shot by mobile phone, the vision of the characters in the picture is more realistic. In the short film, the subjective shot of the little boy crossing the platform to find his mother is completed by putting his hand in front of the little actor, which shows the rhythm and height of the movement, which is closer to a child’s perspective.

　　Nowadays, more and more young people without professional training are shooting their own works with their mobile phones. As a daily tool, mobile phones are far beyond the reach of cameras in portability. When shooting in a narrow indoor space, in fact, a considerable space is needed behind the camera to set up the machine, and with such a small device as a mobile phone, you can freely take pictures even in a narrow and crowded train compartment. For the advantages of mobile phone shooting, Chen Kexin greatly praised: "Compared with bulky cameras, mobile phone shooting can try the effect of dynamic camera movement, and it also brings many unique and different shooting angles. For example, you can put your hand frame very close to the actor to capture the true feelings of the characters without making the actors feel disturbed, which is an advantage that traditional large cameras do not have when shooting at close range. "

　　After "Three Minutes" was broadcast online, many netizens were surprised that the picture texture taken by the mobile phone could actually achieve the effect of big screen broadcast, but some knowledgeable netizens reminded: "Don’t think that there is only one iPhoneX between you and Chen Kexin’s" Three Minutes ",but it is actually several times more expensive than the mobile phone. Stabilizer, adapter, lens, drone and palm photographer & HELIP; …” In Chen Kexin’s view, all auxiliary equipment is just a tool to help the director establish an emotional link with the audience. The most important thing in filming is not technology, but creativity. Technology is just a tool, and more and more convenient and practical tools provide the possibility for realizing creativity. The short film "Three Minutes" not only impressed the audience, but also clearly conveyed that the future may enter an era in which everyone is a photographer. The development of science and technology is giving more ordinary people and video lovers the opportunity to complete their dreams about images.

　　Our reporter Qiu Wei　

The spy film ＂Nobody＂： If you have identity, you have to bear the unbearable weight.

Original title: Comments on People’s Arts: If you have an identity, you have to bear the unbearable weight.

As a spy war film mixed with suspense films and action films, The Unknown has a main narrative time of eight years (1937 -1945), with geographical space spanning Shanghai, Guangzhou and Hong Kong, and complicated characters’ identities. Taking the intelligence department of Wang puppet regime as the stage, people from all walks of life fought an invisible dark war for intelligence.

Identity has become the focus of film narration. In this spy war film with a very clear historical era, the director adopts a ring structure different from linear narrative. The opening paragraph and the closing paragraph of the film basically form a closed loop that raises suspense and finally gives the answer, and the first one is connected. This nonlinear narrative creates a chaotic and broken sense of the times in the form of image stream of consciousness — — This is also the mentality of all sentient beings in the narrative age of the story. Like many spy movies, the suspense set by Nobody is "Who is communist party?" Then it unfolds in a nonlinear narrative in a way of peeling onions. After watching the movie, we pieced together the fragments in the film and found that the central event was actually the death of the little duke who was hidden in the Japanese grass-roots team and its influence. And this is still a topic of identity.

Identity becomes an unbearable weight in the film. Director He, Mr. Ye, Miss Chen and other titles, just as the film title says, are just the identities of many hidden front-line workers working under the Wang puppet regime. Director Cheng Er has endowed people with different identities with different designs: Director He plays smooth, gentle and cautious, and carries on with heavy burdens; Mr. Zhang, who plays the role, lacks responsibility because of cowardice and fatigue in the face of great changes in the times, and therefore dies by defecting to the enemy; The dancers played represent the "Wang Jiazhi" who walked out of the mansion and were full of blood; Minister Tang, who plays the role, represents speculators and fence-sitters under the background of the great era. He thinks he is ingenious, but he is too clever … … Even the Japanese spy Watanabe, in the film, has always stressed that he is the Ishihara faction to show the difference with other Japanese troops. After the victory of the Anti-Japanese War, the captured Watanabe may return to Japan as a farmer because of his status. This kind of identity change is intolerable to Mr. Ye — — "I don’t agree with you to take off this military uniform and become an ordinary farmer." To cut Watanabe’s abdomen, on the one hand, is to liquidate his crimes; On the other hand, it is also a rejection of this identity transformation — — Watanabe’s identity as a spy bears too many historical memories of the invasion of China, and he must be blood out. At the same time, for underground workers, the identity is unbearable.It is often reflected in words and actions: When Director He learned that he was exposed at the dinner table, he changed his previous tact and bluntly said that there was no difference between Ishihara School and Tojo School in the eyes of China people; Mr. Ye injured the Japanese when his fiancee was humiliated and suffered from being unable to identify herself.

In Nobody, this kind of identity and its unbearable weight are based on the development of the plot and the characteristics of the actors, excavating the characteristics of the actors, arranging the role identity, and then expressing it in fluent visual language. Tony Leung Chiu Wai expertly continues his cold-hearted personality in Central mr. yi, and at the same time, he has the chic and bitterness of Mu Yun style in the movie. Miss Chen, who plays the role, continues the style of the underground party. At the same time, although there are not many scenes, it is crucial every time to promote narrative development. Mr. Ye’s plot arrangement and people’s design are just consistent with the characteristics of YiBo newcomers, which shows the green stage mixed with gloom and growth, but it is extraordinary.

It is a little regrettable that the deep excavation of the hidden front in Unknown is slightly insufficient. For example, it is not a tradition to directly assassinate enemy politicians. (Author: Li Fei)

A domestic football match was scolded by a hot search. What happened？

Source: China News Network

On the 8th, a topic entry named # Match-fixing in the Final of Guangdong National Games # occupied a high position in Weibo’s hot search for a long time. As of press time, the reading volume of this topic exceeded 140 million, and nearly 9,000 people participated in the discussion.

From the perspective of competitive sports, this game is not a high-level event. If there are no special circumstances, it will not attract so much public attention to a great extent.

However, looking at the comment area, everyone has a hot discussion.

“It’s the darkest hour of football in China, except for the 15-year-old boys.This is a sentence left by a netizen in the topic discussion area.

In the eyes of professional football media, there are also problems in this game. “After watching the replay of the game, there is indeed a suspicion of match-fixing, which supports a thorough investigation."

Everyone’s response is filled with the most emotions, which are helplessness and anger. In other words, today, football in China is still at a low ebb, and this game has poked a lot of people who care about football in China.

Let’s get to know the situation of this game first.

The match was held on August 7th, 2022. It was the men’s B Group A final of the 16th Guangdong Sports Games, and was played between Qingyuan team and Guangzhou team. There was no abnormal situation after the start of the game. In the second half, Qingyuan team took the lead 3-1.

But since then, the Qingyuan team seems to be like a "power outage." Goalkeepers and defenders pass the ball at will in the backcourt and are directly intercepted by opponents; When the Guangzhou team launched the attack, the Qingyuan team defender did not seem to stop the football from entering the goal; According to the camera, several Qingyuan team players started the "walking" mode on the court …

In the end, Guangzhou defeated Qingyuan 5-3 to win the championship.

After the video of this game exploded on social media, Dong Lu, a well-known football media person, used "weird 13 minutes" to describe what happened on the field.

While the outside world is discussing the game,The Chinese Football Association officially announced the launch of an investigation into the game.. The announcement said that in this competition, the performance of athletes from both sides on the field was widely questioned by public opinion, which aroused the concern of all sectors of society. China Football Association attaches great importance to this and starts the investigation procedure, and will form an investigation team with the participation of the Competition Department, the Discipline Inspection Department and other departments, and will go to Guangzhou for investigation on August 8.

It is not what China football wants to cause a heated discussion in such a way.

This year’s poor World Cup preliminaries once again put the national football team into an "infinite loop", and many fans didn’t know how to face the China football that had been in the trough for a while.

In fact, there has been a lot of news about football in China recently.

The Chinese Super League officially resumed the home and away game system. For professional teams and clubs, the home game was opened for a long time, and when familiar spectators entered the stadium again, it brought more positive signals to the team’s operation.

In the East Asia Cup competition that ended at the end of July, the China Men’s Football Team with "U23 National Team" as the main team won the third place.

Although only four teams participated in the East Asia Cup, this ranking did not satisfy the Chinese people. However, the original intention of sending young players out to increase the experience of the competition and taking this opportunity to upgrade is no problem. In the second round, the national football selection team drew with Japan. The game data still shows that there is a big strength gap between the two sides, but with courage and perseverance, the young players can gain confidence and bring some comfort to the depressed football in China.

When facing the pressure and challenges, face the difficulties and use your own efforts to resist the difficulties. Even if you fail to win the game, you will gain confidence. This may be a more realistic idea, and it is also the most needed for today’s China football.

At present, the official has been involved in the investigation of this controversial competition, but the final result has not yet been released. As for whether it is the "fake ball" mentioned by everyone, we still don’t argue.

A few days ago, the first China Youth Football League started. Wang Dengfeng, deputy director of the China Youth Football League Office and director of the Department of Sports, Health and Arts of the Ministry of Education, said, "Whether more and more children can play football is a key issue facing China football at this stage."

As the future of football in China, youth football plays an important role. Please keep it simple and away from the distractions. Only in this way can we help the development of football in China.