标签： 上海后花园1314

　　Science and Technology Daily reporter Sheng Li

　　According to the China Seismological Network Center, an earthquake of magnitude 6.0 occurred near Changning County, Yibin City, Sichuan Province at 22: 55 on June 17th. After the earthquake and before the arrival of destructive seismic waves, TV screens and community broadcasts in many places in Sichuan realized the "countdown" of earthquake warning, especially in 60 communities in Chengdu High-tech Zone. 61 seconds before the earthquake struck, the short video that the warning "big horn" sounded at the same time was once "screened". What technology is used in earthquake early warning and what are its early warning channels? How do the general public receive earthquake warning? On the 18th, the reporter visited Chengdu Institute of High-tech Disaster Reduction (hereinafter referred to as the Institute for Disaster Reduction), the research and development unit of this earthquake early warning technology.

　　Zhang Xiao, who lives at No.123, Guixi East Road, Chengdu High-tech Zone, was a witness to the "big horn" earthquake warning in Chengdu High-tech Zone. She was preparing to rest on the night of the earthquake on the 17th, when she suddenly heard the "countdown" of the community broadcast. "The sound is particularly loud and the whole community is ringing." Zhang Xiao said that with the end of the countdown alarm, she felt obvious shaking at home. "It is certain that the police were reported first, and it only shook later."

　　After the earthquake, many places in Sichuan received earthquake early warning information through television, mobile phones and community broadcasts, which was released by the "Continental Earthquake Early Warning Network" jointly established by the Institute of Disaster Reduction and the emergency management department. According to the preliminary statistics of the Institute of Disaster Reduction, the mainland earthquake early warning network has issued early warnings to more than 200 schools in Yibin City and Leshan City, Sichuan Province, and 101 communities in Chengdu have also received early warnings. As for the early warning "big horn" that resounded through 60 communities in Chengdu High-tech Zone, it was jointly launched by Chengdu High-tech Zone and Disaster Reduction Institute on May 9 last year.

　　How does "Big Horn" realize earthquake early warning? Wang Gang, director of the Sichuan Provincial Key Laboratory of Earthquake Early Warning and director of the Institute of Disaster Reduction, said that earthquake early warning is a technology that provides users with early warning for several seconds to dozens of seconds by using the principle that electric waves are faster than seismic waves after an earthquake.

　　As for the early warning process of the Changning earthquake, Wang Gang said that in the more than 10 years after the Wenchuan earthquake, the mainland earthquake early warning network jointly built by the Disaster Reduction Institute and the earthquake department of the emergency management department (the original city and county earthquake prevention and disaster reduction department) has covered 2.2 million square kilometers of land in China.

　　"In the huge area covered by this network (continental earthquake early warning network), once an earthquake occurs, earthquake early warning stations all over it can collect earthquake information and respond quickly." He said that after the earthquake, after the seismic wave propagates from underground to the special ground monitoring station of the mainland earthquake early warning network, the seismic wave summary information will be extracted by the first nearby station, and then it will be extracted by another nearby station again to complete the on-site earthquake judgment. The double-extracted seismic information will be transmitted to the early warning center located in the disaster reduction institute, and then comprehensively analyzed by the center to issue early warnings to all terminals.

　　After the Changning M6.0 earthquake and before the arrival of seismic waves, the warning time of Yibin City, 51km away from the epicenter, was 10 seconds, and the estimated intensity was 5.2 degrees. The early warning time for Luzhou City, which is 80 kilometers away from the epicenter, is 18 seconds, and the estimated intensity is 4.6 degrees; The early warning time for Zigong City, which is 111 kilometers away from the epicenter, is 27 seconds, and the estimated intensity is 4.1 degrees. "It can be clearly seen that the farther away from the epicenter, the longer the warning time." He said that the terminals that reached the intensity threshold in this early warning all issued earthquake early warning alarms or tips, and the terminals that did not reach the intensity threshold did not issue earthquake early warning as required.

　　"That is to say, after the Changning earthquake, if the intensity level of seismic waves arriving at different warning locations is lower than the preset value, the alarm will not sound, which is why some people in various places have received early warnings and some have not." Wang Wei said.

　　At present, the earthquake early warning methods that can be realized by the mainland earthquake early warning network include installing "early warning receiving terminal system" in schools, communities and high-risk enterprises, network early warning on mobile platforms such as mobile phones, and TV pop-up early warning. Among them, the early warning terminal system can connect loudspeakers and industrial control systems for earthquake risk control. For example, he said that the earthquake early warning emergency disposal system installed in Zone D of Tianfu Software Park in Chengdu High-tech Zone can control the elevator to realize automatic flat-floor shutdown, while high-risk chemical enterprises can realize automatic shutdown of production systems.

　　On the mobile side, early warning information can be published on platforms such as Weibo, WeChat and APP software. Ordinary users can download the "Earthquake Early Warning APP" developed by the Disaster Reduction Institute to realize mobile phone early warning. Finally, in terms of TV early warning, on May 27th this year, Sichuan Radio and Television Network took the lead in connecting the provincial radio and television network with the earthquake early warning network. At present, TV earthquake early warning in Sichuan has extended to 13 cities and states, covering 79 districts and counties. When an earthquake occurs, the TV will give an early warning by means of "hanging small corner pop-up window" or "large center pop-up window" in the lower right corner.

　　(Science and Technology Daily, Chengdu, June 18th)

　　Xinhua News Agency, Jerusalem, May 22nd　Question: Why do Israeli high-level officials "infighting"

　　Xinhua News Agency reporter Lv Yingxu Wang Zhuolun

　　Israeli Defense Minister galante, wartime cabinet member Ganz and other senior officials have recently publicly raised objections to Prime Minister Netanyahu’s decision, and Ganz even threatened to quit the wartime cabinet. Analysts believe that these actions have made the internal differences that have existed for a long time in Israel’s high-level open, which is behind the changes in domestic public opinion caused by Israel’s predicament in the Gaza conflict. If Ganz, who represents the center-left wing, withdraws from the wartime cabinet, the Israeli government’s policy on the Palestinian issue will be more "right".

　　Openness of internal differences

　　Prime Minister Benjamin Netanyahu, Defense Minister galante and the leader of the main opposition National Unity Party, Ganz, were the three core members with voting rights in the Israeli wartime cabinet established after the new round of Palestinian-Israeli conflict broke out last October. At the press conference on 18th of this month, Ganz released a six-point plan on the conflict in Gaza and its follow-up matters, including rescuing all detainees in Gaza, ending the control of Islamic Resistance Movement (Hamas) in Gaza and demilitarizing the Gaza Strip. After the conflict, the United States, European countries, Arab countries and Palestinians will jointly administer the Gaza Strip and normalize relations with Arab countries.

　　Ganz asked Netanyahu to accept this plan at the latest on June 8, or he would quit the wartime cabinet. "If you choose the fanatical road and lead the country to the abyss, we will be forced to quit the government and rely on the people to form a new government that can achieve real victory."

　　According to a report quoted by the media, the wartime cabinet of Israel considered a proposal to restart personnel exchange talks with Hamas on the evening of 18th, including the extension of the cease-fire period in the second stage, which was supported by galante and Ganz, but Netanyahu still stressed that he was "unwilling to accept any proposal that would lead to the end of the war".

　　Earlier, galante made a video speech on 15th, saying that he had been proposing in the cabinet that a non-hostile Palestinian government should be established to replace Hamas since the current Gaza conflict broke out, but he didn’t get any response. Galante said that in the absence of alternatives, Hamas can only be allowed to rule Gaza again or Israeli military rule over Gaza, but he opposed the latter and urged Netanyahu to give up this option. Ganz voiced his support for galante at that time, saying that he was telling the truth.

　　Israeli public opinion has pointed out that there have been long-standing differences between Israel and high-level officials in handling the war in Gaza, and the statements made by galante and Ganz have made internal contradictions public. This is the "most serious political challenge" for Netanyahu since the outbreak of the new round of Palestinian-Israeli conflict.

　　Public opinion has changed

　　Some analysts believe that galante and Ganz openly challenged Netanyahu this time, which reflects the current battlefield dilemma facing Israel and the changes in public opinion brought by it.

　　Israel has set three major goals for Gaza’s military operations, namely, rescuing detained Israeli personnel, eliminating Hamas and ensuring that the Gaza Strip no longer poses a threat to Israel, but these goals have not been achieved so far and seem to be in the foreseeable future.

　　Israel regards Rafah, the southernmost city in the Gaza Strip, as the last base of Hamas. It wanted to launch a large-scale attack, but it was strongly opposed by the international community, including its main supporter, the United States. At present, it can only adopt the way of "cutting the cake" to expand the scope of attack one by one. In the northern part of the Gaza Strip, the Israeli army recently had to resume air strikes and re-send ground troops to cope with Hamas’s "redeployment of armed forces" here.

　　Since the conflict broke out more than seven months ago, Israeli and Hamas have held several rounds of negotiations. There has been no new progress since a short ceasefire was reached in November last year in exchange for the release of some detainees, and there is no hope for the return of the remaining 100 detainees.

　　In addition, in the border area between Israel and Lebanon, Israel and the Lebanese Hezbollah armed forces supporting Hamas have continued to exchange fire to this day. According to Israeli statistics, the conflict has caused 80,000 Israeli residents on the northern border to flee their homes.

　　Under this circumstance, anti-war and anti-government demonstrations in Israel have become more frequent and larger. Harel Horev, a researcher at the moshe dayan Center for Middle East and Africa Studies at Tel Aviv University in Israel, said that the openness of high-level differences in Israel reflects the changes in domestic public opinion, and more and more Israelis think it is necessary to draw up a plan for Gaza’s post-war arrangements.

　　Johnathan Freeman, an expert on international relations at Hebrew University in Jerusalem, believes that Ganz’s public opposition to Netanyahu’s government may be aimed at a new round of general elections, and he intends to gain voters’ support by putting forward clear political ideas. The latest polls show that if the general election is held now, the support rate of Ganz is 35% and that of Netanyahu is 32%.

　　The government may be more "right"

　　Regarding Ganz’s proposal, Netanyahu said in a statement on the evening of 18th that these demands were "outdated remarks", which meant that "Israel failed, most of the hostages were abandoned, Hamas continued to exist and a Palestinian state was established".

　　In addition, Israeli far-right representative and national security minister Ben-Gervais called on Netanyahu to remove Ganz and galante from their posts on the 19th. Another far-right figure, Finance Minister Smout Leahy, called for a long-term "military presence" in the Gaza and launched an attack on Lebanon on the 19th.

　　The current Israeli government, composed of right-wing and far-right forces, is known as the "rightmost government in history" and has a tough attitude on the Palestinian issue. Among them, the ultra-right forces are especially so. They advocate continuing military operations in Gaza until Hamas is completely destroyed, and demand that aid materials be prohibited from entering Gaza. Analysts pointed out that the Likud group led by Netanyahu needs the support of the far-right party to maintain its ruling position, so the far-right can kidnap the government on relevant policies.

　　Horev said that Ganz’s withdrawal from the wartime cabinet could not force Netanyahu to dissolve the parliament and hold a new general election. If Netanyahu finally refuses to accept Ganz’s proposal and Ganz withdraws from the wartime cabinet, the influence of the centrist in government decision-making will be weakened and the government’s policy will be more "right".

　　However, some analysts believe that Ganz’s statement may be just a "show." Freeman said that Ganz felt that there was an increase in public criticism of his continuing to stay in the wartime cabinet. This statement was intended to show the public that his staying in the wartime cabinet could influence decision-making. Israel’s Ha ‘aretz published an article on the 18th, pointing out that Netanyahu needs Ganz from the center-left to stay in the wartime cabinet to hedge the pressure brought by the extreme right forces, and Ganz himself may not really quit the wartime cabinet.

Now, on weekends and holidays, it is even less difficult to drive to shopping malls and scenic spots, and sometimes it is no less difficult than finding a parking space in the city center. As the owner said, "Sometimes there are vacancies in the underground parking lots of shopping malls and hospitals, but the venues are large and there are no obvious signs. They can only search around several times like blind flies, and finally find a seat, and the result is" cut off "by the owner who is closer. When picking up the car, I often get’ lost’ and circle around in the parking lot to find a car. "

At this time, many people begin to regret driving to the mall. However, if you want to visit Sam and IKEA, which are generally remote supermarkets, public transportation is very inconvenient, and taking a taxi is expensive. After shopping, it is quite difficult to find a place to take a taxi. When I think about it carefully, it seems that driving has become the most worry-free and labor-saving way. It is nothing more than the psychological preparation for wasting an hour in the parking lot in advance.

In the field of intelligent driving, which has developed rapidly recently, there are brand-new solutions to the problems of difficult parking and parking. Zhijie S7, the first pure electric car of Huawei Intelligent Selection Car, which was pre-sold on November 9, is equipped with the industry’s first parking and driving function, once again showing the far-ahead intelligent driving strength to the industry and outside.

The problem of finding a parking space is solved by injecting driving into parking.

From a functional point of view, the parking and driving function allows the owner to open unmanned parking with one button. That is, when the owner gets off the bus, turn on this function with one key, and the vehicle can find a parking space to park itself. It sounds very sci-fi, and Huawei has successfully brought this unprecedented intelligent driving experience to users through the technological breakthrough of intelligent driving perception technology, algorithm iteration and scene strategy. In other words, with this function, users can go to Sam and IKEA, drive directly to the entrance of the shopping mall or the entrance of the parking lot, and then go shopping, and Zhijie S7 can start the journey of finding a parking space by itself.

It is worth noting that through the blessing of perceptual technology, the parking function of Zhijie S7 can also understand the command gestures of the mall security guards, just like an old driver, it is very easy to drive to the target parking area.

There are also hidden technical points here. As we all know, when we are looking for a parking space, we often can only rely on human eyes to lock it, and we often call the whole car to find a parking space together. The parking and driving function of Zhijie S7, through the perception of cameras and sensors, has a much larger detection range than the human eye, so it is naturally more effective to find a parking space. What’s more, Huawei’s intelligent driving system also has a huge amount of data to support, sometimes it is a strange parking lot for car owners, but for Zhijie S7, the parking lanes and empty parking spaces here are well known, and it is naturally easier to find a parking space.

Independent parking in the parking lot, the safety factor is also guaranteed.

For intelligent driving, safety has always been an important topic. The parking function of Zhijie S7 also fully considers the safety of driving in the parking area. First of all, when passing, if the lane is not enough to pass with the opposite vehicle, it will back up first, wait for the opposite vehicle to pass, and then pass, so as to avoid traffic jam or collision between the two vehicles. And if the lane can be used by two cars in parallel, it will also control to slow down and pass slowly.

If you encounter pedestrians and roadblocks, the parking and driving function also has a strong pedestrian avoidance ability, and will plan the route to take the initiative to avoid. Behind parking and driving, there is a set of safety technology blessing of Huawei ADS 2.0 advanced intelligent driving assistance system. There is no doubt about the safety in the process of intelligent driving, including responding to the ghost probe behavior that pedestrians suddenly jump out, and it can quickly rely on the powerful AEB function for emergency braking, coupled with the slow driving speed controlled by the system, which further guarantees the safety.

In addition, in detail, the parking and driving function can also realize roaming to find a place. After reaching the target parking space, if the target parking space is occupied, it will automatically control roaming to find other parking spaces and automatically park. In the process of parking, if the vehicle detects that the parking space is too narrow, the system will control the rearview mirror to be put away first, and then stop automatically.

At the same time, the owner can also check the situation in front of the vehicle (real scene) in real time on the mobile App, check the location, and stop/start parking to avoid the worries of the owner. When the owner has finished shopping in the mall, he can start the calling function with one key of the mobile phone, and the vehicle will automatically start and arrive at the designated place, so that the owner’s whole family can get on the bus and leave directly.

Write at the end:

For the matter of finding a car and parking in a shopping mall, the capabilities of the parking and driving function of Zhijie S7 are quite comprehensive. First of all, it directly arranged the most troublesome thing of finding a parking space, so that the owner can get off the bus directly after arriving at the destination. Moreover, in the whole process of intelligent driving and parking, the control fineness and safety guarantee of the system are remarkable, and even after parking is fruitless, it can continue to roam to find a car. Finally, when the car mainly leaves, there is no need to find a car, but it becomes a car to find someone, completely realizing the comprehensive closed loop of parking and driving.

With the parking function, we can go to shopping malls and scenic spots on weekends and holidays, and the parking troubles can really be "completely eliminated with one click". It is reported that Zhijie S7 will be officially launched on November 28th, and we are also looking forward to experiencing this advanced parking and driving function as soon as possible.

# The headline of current events said # "Many European experts think that China cars have a bright future. They perform well in crash tests, are usually beautifully designed, and provide reasonable equipment even in the basic version-and the price is unparalleled. " However, the article titled "What May Stop the Rise of China Electric Vehicles in Germany" in German Economic Weekly on December 10th pointed out that the China brand still has a key weakness-China automobile manufacturers lack a service point network in Germany and Europe. Many China players also have weak financial resources.

Nearly 30 China brands have entered Europe.

At the end of November, BYD, a China automobile manufacturer, announced that it had reached a "historic milestone": the 6 millionth new energy vehicle rolled off the assembly line in Zhengzhou, China. In just three months, BYD’s car production has increased from 5 million to 6 million. BYD is a success story: it took 13 years to produce the millionth electric car. BYD currently has offices in 58 countries around the world, including Germany.

Like BYD, Aichi, MG, Geely and Weilai have mushroomed in Germany. Chery is also expected to start selling in Germany in the second quarter of 2024.

Economic Weekly article

Ergun Lumali, President of the General Union of Mercedes-Benz Group, recently visited China, where he was able to drive and inspect the cars of China automobile manufacturers. He said: "China manufacturers are ahead of us in the fields of digitalization, infotainment and autonomous driving, and the price makes it difficult for us to keep up. We are getting better, but we must hurry and act faster. "

In any case, people in China have ambitious sales plans: "At present, about 20 to 30 China brands are trying to gain a foothold in Europe," said benedikt Mayer of IfA. So far, China’s market share of new cars in Germany is about 1%. By 2025, this proportion is likely to reach 3%. The growth is enormous.

BYD dealers also sell Mercedes-Benz.

But the China brand still has a key weakness: "China manufacturers come to Europe with very strong products, but this is only one of the keys to success," said Peter Fintel, head of Capgemini’s technology and innovation. Sales and service are equally important.

Fabian Brandt, partner of Oliver Wyman Consulting and global consultant in charge of automobiles and industrial products, said that service plays an important role in the life cycle of automobiles. Service "determines whether customers are satisfied." Anyone who has just entered the European market must establish a good service network. If the player doesn’t do this, it will damage the brand. Lack of service may slow down the rise of China brands. "

China’s share of electric vehicles exported to Europe is increasing.

But what if the China car needs to go to a repair shop? Then sometimes there may be problems. Meyer said that in order to fully enter the German market, manufacturers need at least 100 auto repair service points.

Not all China automobile manufacturers have established a comprehensive service point network. For example, Weilai mainly passedmove""WeilaiService center ",to provide users with on-site service. In any case, there are not many users. From January to September, 2023, the newly registered number of Weilai Automobile was only 885. This is not enough to cover the high cost.

A China automobile brand store in Europe.

In contrast, taking MG as an example, it is estimated that there will be 20,000 newly registered cars in 2023. "This goal seems to be achievable at present," said MG. Polestar has set up more than 200 service points in Germany and cooperated with Volvo Car Germany. Polestar 2 has registered more than 15,000 vehicles in Germany. Aichi Auto relies on ATU auto repair service chain. Customers can go to any of about 500 ATU branches in Germany. Up to now, Aichi Automobile has sold about 3,000 U5 SUV models in Germany. BYD dealers also sell Mercedes-Benz in Germany.

The way to establish contact with large retail chain stores is particularly promising. They not only have dozens of car dealerships in the region, but also have affiliated repair shops. This is how sales and service are combined. For example, Great Wall Motor relies on Emile Frey Group, an importer in Germany. So far, the manufacturer has sold more than 4,000 Great Wall Euler 03 cars in Germany alone.

get ready for a journey or a march

There is another risk: according to consultant Brandt, many players from China also have "fragile financial resources". Therefore, he estimated that "half of the brands currently targeting the European market will disappear again". The risk faced by car owners in China is whether they will continue to get spare parts, especially software updates. If the manufacturer withdraws from the market again, in theory, it must abide by the law and continue to provide spare parts to existing customers.

Therefore, if China manufacturers want to gain a foothold in the European market, it is imperative to build a perfect service point network to give European drivers who have bought China cars and want to buy China cars a "reassurance".

# New energy vehicles #