Expert: For safety reasons, large aircraft should use the Beidou navigation system


In the earthquake relief, our army has begun to use the "Beidou" navigation system handheld



China’s future large aircraft imagination


  According to the China Industry News, competitiveness and international cooperation are compulsory courses before a large aircraft "takes off."


  On December 29, 2007, Premier Wen Jiabao made a special trip to Xi’an Aircraft Industry (Group) Co., Ltd. to inspect and welcome the 2008 New Year with Xifei people. Premier Wen pointed out that the independent development of large aircraft is a major strategic decision made by the Central Committee of the Communist Party of China and the State Council, which means that the Chinese people will use their own hands and wisdom to create a competitive large aircraft in the world.


  What is competitiveness? It is to achieve mass production and achieve the three important goals of safety, economy and comfort, so as to be competitive in the domestic and international markets. The large aircraft that Premier Wen refers to as competitive in the world refers to the civilian passenger aircraft (hereinafter referred to as the large aircraft) in China’s large aircraft.


  What kind of big aircraft does our country want to build? Industry insiders pointed out that we must first start with the nature, market, model, range and non-large regional passenger aircraft of the big aircraft. The general policy of manufacturing a competitive big aircraft in the world, of course, must follow Premier Wen’s instructions, concentrate on integrating the development and production resources of large aircraft, rely on national economic strength, scientific and technological innovation, rely on talents, and rely on the wisdom and creativity of every design and manufacturing personnel.


  Safety factor, the first issue to be faced in large aircraft projects


  Experts point out that the key to a large aircraft’s large fuel volume and long voyage is to consider safety factors, in addition to the following aspects:


  At present, many airport facilities in Asia, Africa, Latin America and Oceania are very rudimentary, and the communication and navigation equipment is backward, or even there is no backup, which puts forward high requirements for the aircraft itself. Under special circumstances, the pilot must be prepared to land independently without relying on ground navigation, and the large aircraft to be manufactured in our country must have a clear understanding of this.


  Second, it must be easy to operate. In view of the conditions of airports in Asia, Africa, Latin America and Oceania, large aircraft cannot pursue full electric operation, and must adhere to the combination of electromechanical and two sets of mechanical backup, and at the same time be easy to operate. Simply put, it is the optimization of Western avionics systems and Russian manual control systems. Therefore, such a large aircraft does not need Western avionics equipment as "foreign", nor can it be as "soil" as Russian manual control systems.


  Third, the design of large aircraft should take into account harsh and extreme environments. The geographical environment of Asia, Africa, Latin America and Oceania is different, and the temperature difference between day and night in tropical desert areas is very large, which also puts forward high requirements for the fatigue strength, corrosion resistance and lightning protection of aircraft.


  And four.Large aircraft should use the domestic Beidou navigation system.At present, although the GPS Global Position System is free, it is impossible to predict whether the situation will change in 2020. Therefore, even if it is not out of national pride of independent research and development, it should be adopted for economic and security reasons only. According to the conservative estimates of relevant people, by 2018, the Beidou navigation system technology will be very mature and has already been industrialized.


  Improving the economy is an important foundation for participating in international competition


  Industry experts believe that for the economy of large aircraft, in addition to engine fuel economy, the following aspects are also very important:


  The first is that the self-weight cannot be too large. Due to the fact that the basic processes such as casting, forging and stamping in the Soviet Union are not up to standard, and the processing technology is not as good as those in the West, the main components of the aircraft cannot meet the design requirements, so they have to adopt reinforcement methods, resulting in problems such as low structural efficiency, high fuel consumption, and low transportation efficiency of the aircraft. Although the technology of European and American aircraft is good, it pays too much attention to economy, leaving little room for design indicators, so that users think that European and American aircraft are not as strong and solid as Soviet-style aircraft. Therefore, in addition to relying on advanced technology to reduce the inefficiency caused by the large weight of the aircraft, large aircraft in our country also need to use a large number of composite materials to reduce the weight Since the main markets for China’s large aircraft positioning are Asia, Africa, Latin America, and Oceania, as long as large aircraft are cheaper than European and American aircraft and more fuel-efficient than Russian aircraft, they will definitely find their own blue ocean.


  The second is that it is easy to maintain and repair, and the maintenance and repair costs are cheap. The reason why Soviet aircraft are still widely used in third world countries is that they are easy to maintain and cheap. Therefore, large aircraft can take advantage of the advantages of Soviet Russian aircraft, otherwise they may lose the market if they are not high enough to be low enough.


  The third is good versatility. There are many low-cost airlines in Asia, Africa, Latin America and Oceania, and most of them only purchase one type of aircraft or even one type of aircraft to reduce costs. Due to poor airport facilities, inconvenient transportation, and limited backup of aviation materials, this requires that the same model of large aircraft should be easy to disassemble and replace, and if necessary, the parts of one or two aircraft can be disassembled to ensure that one aircraft takes off.


  Fourth, the continuity should be strong. China’s large aircraft must have its own characteristics, and the subsequent models must be inherited and continuous. Otherwise, the subsequent models of the aircraft cannot be accepted by airlines, because it is equivalent to two types of aircraft, and the maintenance cost will be greatly increased.

Xiaomi Auto is released soon! The latest full-body exposure, within 300,000 plus laser radar, will sell 100,000 vehicles next year.

Since Xiaomi announced the construction of the car, this unreleased "first electric car for young people" has been successfully circled.

However, many rice noodles were somewhat disappointed with Lei Jun’s annual speech last week. It was less than half a year before "the production car will be launched in 2024". Lei Jun only mentioned "Xiaomi car" twice at the press conference, and the progress and details of building a car were not announced.

It seems that Lei Jun is not in a hurry. What about the last venture that he promised to put his life honor and family property on?

Fortunately, the latest news has given everyone a reassurance. Recently, a blogger claimed to have photographed four test cars of Xiaomi cars on the Urumqi-Changji Expressway in Xinjiang Uygur Autonomous Region and said that "the posture is really good". At the same time, he also added some details of Xiaomi car: equipped with yellow calipers and sharp interior center console edge.

As for how to see that it is Xiaomi Automobile, the blogger said, "Taillights, headlights, wheels and camouflage are all consistent with what Beijing broke at that time."

Coincidentally, at the same time, Lei Jun, chairman of Xiaomi Group, also posted a message in Weibo: "Test Xiaomi MIX Fold 3 Leica Optics, Four-shot and Five-focal Section" and took a group photo. At this time, his IP attribution showed that he was located in Xinjiang. And after the banner held in the group photo is enlarged, it is "fighting for Xiaomi car".

On the other hand, Lu Weibing, the partner and president of Xiaomi Group, also sent a Weibo: "Two shadows are formed", with a picture of two shadows.

Combining multiple sources seems to imply that Lei Jun and other senior executives came to the scene to "supervise" Xiaomi’s test results.

What’s more exaggerated is that the energy consumption performance of Xiaomi Automobile has been concealed. The former Geely Automobile Research Institute Hu Zhengnan published a document in Weibo to disclose the power consumption of Xiaomi Automobile, which can actually achieve good results of "8.8 kWh per 100 kilometers". …

This is quite amazing. The new car may break through everyone’s imagination again like the Xiaomi mobile phone of that year.

Judging from the content released by Hu Zhengnan, due to being spoofed by the engineer, a tram with a remaining battery life of 152 kilometers was thrown at 8 pm, and he was asked to take three strong men back to the destination 85 kilometers away, with an ambient temperature of 37 degrees.

However, he successfully drove the tram to his destination, and the remaining mileage showed that there were still 90 kilometers, and the energy consumption per 100 kilometers was only 8.8 kWh.

Hu Zhengnan revealed in the comments that the whole road is a mixed road condition of high-speed national highways and rural roads. In this process, Xiaomi Automobile has experienced several downhill energy recovery, but in the end, the energy consumption of the vehicle can still be regarded as an upper-class level.

Regarding Hu Zhengnan’s identity, he was the president of Geely Research Institute. In September 2021, he announced on social media that he had joined Leijun’s Shunwei Capital, focusing on the ecological field of smart car technology. Previously, this personnel change was regarded by the outside world as Xiaomi’s car. Welcome to the first car circle.

Combined with its geographical location-Xinjiang, Hu Zhengnan’s news about Xiaomi Automobile is very credible.

The exposure of this data has also triggered a heated discussion among netizens. A medium and large-sized car, such as Tucki P7 and Tesla Model S, has an excellent energy consumption of less than 15kWh per 100km with a single motor version, so the performance of this millet car at 8.8kWh can definitely be regarded as excellent.

In this regard, there is also a digital blogger @ Alex on Earth who analyzed the data, indicating that the four people can still maintain the score of 8.8 kWh per 100 kilometers in a 50-kilometer journey under a 37-degree environment, plus the graph shows that most of the time they are in an acceleration/rapid acceleration state, and some kinetic energy is recovered in the last 10 kilometers, which means that the power consumption performance of Xiaomi Automobile is "a little scary".

In addition to the energy consumption, we have a clearer understanding of the design of Xiaomi car.

Although the new car is still in a state of high camouflage, it is certain that it will be a coupe with a sliding back design, and the front of the new car is long, which is obviously different from our impression of pure electric vehicles. It is expected that the new car will adopt a closed front face design to further optimize the aerodynamic performance of the vehicle.

Not only that, the new car will adopt a borderless door and a hidden door handle design, which looks a bit like Porsche Taycan, so some netizens teased: Whether you can drive a Porsche in this life depends on Xiaomi.

In addition, judging from the outline of the vehicle, the new car may be equipped with a spoiler.

In the body posture, the new car also looks very low. The inclination of the A-pillar is too large, the B-pillar is slender, and the waistline is high. It really looks like a coupe. In detail, the charging port is arranged on the left rear fender, and it will support sucking the charging gun.

From the general outline, it can also be found that the top of Xiaomi car is equipped with lidar equipment.

Earlier, there were car bloggers who came across the road test camouflage car of Xiaomi MS11. The blogger said that the body size of the new car would be at the B+ level.

However, it was revealed that the dimensions, length, width and height of the new car were 4860/1980/1666 mm respectively, which was similar to that of Tucki P7 currently on sale.

In the interior part, the new car may adopt a more conventional design, and there is a large central control screen in the middle of the center console.

Because the screen on the test car has a wide border, it is speculated that the production version may be equipped with a simpler and more sci-fi screen. In addition, the test car is equipped with a relatively small LCD instrument, and the steering wheel seems to adopt a flat-bottomed design, which highlights a certain sporty atmosphere.

In the core configuration, it is revealed that the battery of Xiaomi Automobile is 101kWh, with a rated voltage of 726.7V and a weight of 642kg. These parameters also show that the power battery carried by Xiaomi Automobile is expected to support 800V high-voltage fast charging, which is the same as the previous news.

800V should be the most advanced pure electric fast charging scheme in the field of new energy at present. As a reference, Tucki G6 equipped with 800V fast charging technology can charge for up to 10 minutes and have a battery life of 300km.

At the same time, Xiaomi’s first car will be equipped with Qualcomm Snapdragon 8295 chip, which adopts 5nm process, and the GPU 3D rendering performance is three times higher than that of 8155. At present, there is no production car equipped with this chip in the market, even if Xiaomi car was released in 2024, it is still at the hardware level of the first echelon.

In addition, it will be a high probability that Xiaomi car will be equipped with MIUI car version. After all, MIUI system has always been the core of Xiaomi mobile phone, and it is expected to be equipped with intelligent voice of Xiaoai classmates and get through with Xiaomi smart home system. In addition, Xiaomi car will also support functions such as non-inductive unlocking of mobile phones.

It is worth mentioning that Xiaomi recently announced the test results of autonomous driving. According to the official statement, the test vehicle can realize unprotected automatic U-turn, bypass the accident vehicle and automatic parking in place.

You can even find the charging port automatically through the mechanical arm to complete automatic charging and homing.

As early as June 2021, Xiaomi invested in laser radar provider Hesai Technology, and Hesai Technology released a pure solid-state close-range blind-compensating laser radar named FT120 in November last year, which is expected to be mass-produced and delivered in the second half of this year.

Therefore, Xiaomi Automobile will be dominated by a hybrid solid-state radar located above the windshield, supplemented by several all-solid-state radars. This configuration is absolutely luxurious today.

Less than a year before Xiaomi’s first car went on the market, the core question of Lei Jun’s "soul torture" may be changed from "to do or not to do" to: expensive or not, which is a problem.

When Xiaomi just called to build a car, Lei Jun made a vote on "How much do you want Xiaomi’s first car to cost?" The result showed that the user group with less than 100,000 yuan was the largest.

However, judging from the current situation, the price of Xiaomi car seems to be not so low. According to many sources, the new car will be divided into two versions, one with a price range of 260,000-300,000 yuan and the other with a price of more than 350,000 yuan.

Then Xiaomi’s mass-produced electric vehicles are expected to become competitors of high-end electric vehicle brands such as Weilai, Tucki and Geely Extreme Chlorine.

However, Lei Jun seems quite confident about this new car. According to media reports, in the past two years, Lei Jun has recruited troops for Xiaomi Automobile. According to insiders of Xiaomi, the existing number of people in Xiaomi Automobile Department has reached 2,500, of which the algorithm team for automatic driving has exceeded 500.

According to the financial report, in 2022, the investment in innovative business such as Xiaomi smart electric vehicle was 3.1 billion yuan, and the size of the automobile business team was about 2,300 people. Half a year has passed, and the team members of Xiaomi Automobile are also growing steadily, and the new car will be unveiled at the end of the year at the earliest.

According to reports, Lei Jun has set a big goal in Xiaomi Automobile, and will achieve sales of 100,000 units in the first year of listing in 2024. In contrast, in the first year of mass production of Weilai Automobile in 2018, the set annual delivery target was only 10,000 vehicles. Until 2022, Weilai delivered a total of 122,500 vehicles, and in the same year, Xpeng Motors delivered 120,700 vehicles. Therefore, the pressure on Xiaomi car is really not small.

Then the question is coming. Do you think Xiaomi’s first battle next year will be successful this time?

Original Original 2022 Seven Live online celebrity Inventory: Some became popular overnight, and some received mixed praise.

Original title: Original 2022 Seven Live Broadcast online celebrity Inventory: Some burst into red overnight, and some received mixed praise.

This year’s anchor keywords are no longer Li Jiaqi and Viya, which people have never heard of before, but more new people have emerged, who have broken through in the fierce live broadcast of the Red Sea by virtue of their own characteristics and advantages.

The waves behind the Yangtze River push forward the waves, whether it is stars and old artists who have not appeared for a long time, or big brands and unknown small businesses, they are broadcast live one after another.

Who is popular with this year’s live broadcast? In this article, I will take stock of the representatives of this year’s booming live broadcast.

The most cultured live broadcast room: Dong Yuhui

Dong Yuhui is the dark horse in the live broadcast industry this year. With rich knowledge accumulation and outstanding expressive force, he has been "out of the circle".

The young man from rural Shaanxi laughed at himself as a "Terracotta Warriors", but sold the live broadcast room.

His characteristic is that when introducing the characteristics of products, Dong Yuhui will also explain how to express these characteristics in English, with a cordial, enthusiastic and infectious attitude.

Unlike ordinary anchors, whose introduction is limited to product functions, Dong Yuhui changes his identity from time to time, switching freely between roles such as history teacher, philosophy teacher, Chinese teacher and biology teacher. When introducing products, he will add some high-level jokes and celebrity poems from time to time, which profoundly reflects the basic literacy of teachers.

As a host, teachers have their own advantages, such as eloquence and emotional intelligence. He came not only to buy things, but also to learn English and listen to cross talk.

Some netizens commented that "this is the live broadcast room with the most cultural output and input in the whole network", and many parents watched the live broadcast with their children in the name of "learning English".

Dong Yuhui’s popularity made "Oriental Selection" enter the first-line anchor camp, and the live broadcast transformation of New Oriental was also a great success.

"I am a farmer’s child, or a young man who works hard in a big city like you and me." Dong Yuhui evaluates himself.

The most sports live room: Liu Genghong

For a period of time this year, the whole network was full of popular songs, and the protagonist behind it was Liu Genghong, a fitness blogger.

Because it was too hot, several accidents happened:

For example, when he appeared in aerobics, he wore a vest, and because his body was too muscular, he was banned by the system because he was breastfeeding. Jump.

Also, when doing the action, accidentally showing armpit hair was prompted by the system as "not good-looking" and forced to stop broadcasting …

The addition of the 66-year-old mother-in-law directly made the scene hot. Statistics show that in the past 30 days, Liu Genghong has broadcast 28 programs, with a cumulative audience of over 74 million. A number of new groups, "Girl Liu Genghong", were born on the Internet, staying in the studio on time and dancing with Liu Genghong.

Due to the epidemic situation in different degrees all over the country, home fitness has become the urgent need of many people, and it has also contributed to the popularity of Liu Genghong.

But with the passage of time, it is also the biggest regret of many girls in Liu Genghong that they can’t persist in this sports craze.

The most gossip live room: Zhang Lan

With his own entrepreneurial experience and his son’s gossip, he sold a bowl of hot and sour powder. In just a few days, the sales of Maliuji hot and sour powder directly exceeded 60 million.

Zhang Lan knows a lot about the internet. She will talk about things that netizens care about. She followed the online public opinion and teased jokes, and also put in mattresses, marinated eggs, green tea and other products that responded to popular search events.

These products also sell well. Rise.

The live broadcast room is full of connotation and profound meaning. The people who ate melons enjoyed themselves, and Zhang Lan worked hard to make money. This is a win-win game.

This also allows everyone to see Zhang Lan’s indomitable inspirational spirit. As early as 2009, Zhang Lan was selected as the third richest restaurant in Hurun. At its peak, South Beauty had an annual turnover of nearly 3 billion yuan.

However, after successive losses in the capital market, Zhang Lan was once kicked out by the company he founded, but Zhang Lan did not admit defeat. A few years later, he and his son Wang Xiaofei founded the catering company Ma Liuji. No one would have thought that it would be hot again by live broadcast now.

I have to say, Sister Lan is still your Sister Lan.

The most controversial live broadcast room: Crazy Yang Xiaoge

Qianzu spent 100 million yuan to buy more than 50 thousand square meters of real estate of a high-tech enterprise in Hefei, which caused a lot of controversy.

Then, Wang Hai, a well-known counterfeiter, posted a video on Tik Tok, saying that the power parameters of Kim Jong’s wall-breaking machine and meat grinder sold in the live broadcast room of crazy lamb were false.

How fierce is the live broadcast of Crazy Brother Yang?

The short video made Yang Ge a online celebrity, and the live broadcast directly made Yang Ge a billionaire.

"Welcome brothers!

"The popularity of Shawn’s short video was copied to the live broadcast room, and fans watched it one after another. The live broadcast of Shawn was even more popular. Soon, all kinds of big names found Xiao Yang to bring goods.

Xiao Yang also invented a new mode: IP live slicing authorization. Authorized slicing means that, with Shawn’s permission, other accounts edit and bring some tidbits broadcast live in Shawn, and link them to related goods for sale. However, there are a large number of fake accounts of Brother Yang in the market. These accounts are often fake and the source of products is unknown, which will also have a certain impact on Yang Xiaoge’s brand image and damage Yang Xiaoge’s reputation.

When people are popular, the influence of traffic is difficult to control. Xiao Yang, 25, still needs to be down to earth.

The most magical live broadcast room: T97 Big Mouth Girl

"Coffee, do you want to do, do it. Folli, do you want to do it? Do it.

"

Once upon a time, many people were brainwashed by this magical slogan. The freestyle of the anchor big mouth girl can be called wheat style, which makes the whole network addicted. T97 Coffee has gained more than 1 million fans in two months, and the highest number of viewers in a single game has reached 10.82 million.

The reason why big mouth sister can stand out from the live crowd is because her big mouth is very important.

Because of her big mouth, the big mouth girl used to use a filter to make her mouth smaller. Once she forgot to turn on the filter to reveal her big mouth, only to find that the number of viewers suddenly increased from seven to more than 50.

Therefore, the big mouth girl no longer hides it, but highlights this feature, which is even more unforgettable.

Big mouth Niang also has a big killing trick, that is her live broadcast style, rap live broadcast, some people hate it, some people like it.

She wrote the lyrics with her team. Lyrics are extracted from product features, production methods and advertising copy, and she has learned the single and double rhymes of rap.

The popularity of Big Mouth Niang even set off a rap craze in Tik Tok. Cai Linji, Wallace, Wan Fangyuan score, etc. all began to rap in the live broadcast room.

According to Li Xiao, the founder of T97, the live broadcast room only needs 800 yuan to achieve a high exposure of 50.18 million.

But the traffic is heavy, and it still can’t bring the goods. It was found that the big mouth girl was on fire for a month, and the average sales of T97 coffee per live broadcast was between 75,000 and 100,000, and the highest single broadcast was only over 200,000.

This also exposes an embarrassing fact: the personal characteristics of big mouth sister are too distinct, and netizens will be taken away by big mouth and ignore the products she sells.

The most fake backstage live broadcast room: alimu

This year’s live broadcast industry has made many grassroots popular, and a typical example is Alimu.

Because Xinjiang host Alimu has a dark complexion, it doesn’t match the exquisite Xinjiang background at all. Every time he sells honey live outdoors, he will be questioned by netizens that "your background is too fake."

In order to prove that his background is true, Liu Yuanjie threw a bucket into the stream behind him during the live broadcast, but ran into the water to pick it up. Not only that, Liu Yuanjie also threw stones and slippers into the water to prove his authenticity.

Unexpectedly, these have become the material for the second creation of netizens. The stream and grass behind Liu Yuanjie can be turned into any scene. Send great gods from all walks of life to carry out "second creation" to realize the dream linkage of various scenes, such as fiery volcanoes, chaotic entry into the Ligue 1, lonely moon and street freestyle.

"Your background is too fake" rushed to Weibo hot search, and Liu Yuanjie’s "Jiangyu Alimu" was a hit, with over 400,000 fans overnight.

Although it looks a bit vicissitudes, but the actual age is only 25 years old. Alimu, born in 1997, has another identity: President of Xinjiang Yuli County Beekeeping Association, who is the anchor in Yuli County, Bayinguoleng Mongolian Autonomous Prefecture, Xinjiang, and mainly sells local honey.

After becoming popular, countless netizens came to Liu Yuanjie’s live broadcast room, and honey was quickly snapped up. Liu Yuanjie fully enjoyed the bonus of "Everyone Becomes Famous for 5 Minutes" and sold it happily.

The most marginal live room: coconut tree live broadcast

The most troublesome coconut tree group entered the live track this year, and it still passed by as always.

As soon as the coconut tree group announced that it had settled in the live broadcast to bring goods, tens of thousands of people suddenly poured in. The four beautiful women in the live broadcast room swayed back and forth with the rhythm, which triggered the emotional excitement of netizens. Many netizens expressed their feelings, "You know this traffic."

Netizens also invented a word for the coconut tree live broadcast room, "the earth wants the wind", which means that the models are all wrapped up and their clothes are not exposed, but they still give people a sharp-edged feeling.

It is not surprising that coconut trees enter the live broadcast. Now live broadcast with goods has become the only way for the development of major brands. Using the "earthy flavor" marketing method with spicy eyes is also the consistent operation method of coconut trees.

Behind the success of the live broadcast, it also exposed the problems of the Coconut Tree Group itself: the products are too single and the marketing methods are too backward. It’s not that the live broadcast is wrong, but that it’s time for coconut trees to change their marketing methods.

As the Beijing News commented:

Coconut juice is really delicious. Keep the quality and don’t let vulgar marketing smash the signboard.

-The end-

Editor in charge:

On the battlefield, will artificial intelligence defeat human intelligence?

  On March 15th, 2016, Google’s artificial intelligence "AlphaGo" defeated Go world champion Li Shishi with a disparity score of 4-1. On May 27th, 2017, China’s Ke Jie, who is recognized as the world’s No.1 Weiqi player, lost 0-3 in a three-piece chess contest with Afa Dog.

  It is reported that in the research team of "Afa Dog", only Huang Shijie can play Go for four amateur paragraphs. The level of amateur four-stage Go may only be to understand the basic rules and some simple skills of Go. And once he is combined with the artificial intelligence "Alpha Dog", he can actually play a super-class chess player without winning. This fact reminds us that a commander who understands basic operational rules and tactical principles, if combined with the corresponding operational command-aided decision-making artificial intelligence, will defeat the first-class military commander without artificial intelligence?

  Where does artificial intelligence come from?

  Electronic computers and the Internet are born in response to military needs, and so is artificial intelligence, a branch of computer science. In 1939, World War II broke out and Britain declared war on Germany. Alan mathison turing, a mathematician and logician engaged in research work in Cambridge, enlisted in the army and joined the code-breaking station ordered by Churchill. The deciphering machine named "Turing Bombe" developed by them successfully cracked the communication code of the German Supreme Command Center, code-named "Enigma". Later generations commented that the "Turing Bomb" advanced the end of World War II by at least two years. After the war, Turing mainly engaged in the pioneering research of computer programming theory, neural network and artificial intelligence. He was called "the father of artificial intelligence" because of a series of outstanding achievements.

  According to the Chinese definition, "intelligence" includes people’s "wisdom" and "ability", that is, intelligence and ability. The English expression of artificial intelligence is: artificial intelligence; Artificial means "artificial" and "imitation", which is strictly translated. Only Artificial Intelligence can be translated into "artificial intelligence" or "artificial intelligence". In fact, the current "Alpha Dog" is really just a "Go Brain", which decides how to play chess, and the chess movement is done manually.

  The superb Go level of "Alpha Dog" benefits from the deep learning method provided by new technology with big data science and technology as the core. It can be described visually as follows: the program only describes the learning and thinking methods of "Alpha Dog", and the improvement of its intelligence level depends on the accumulated data. For "Alpha Dog", the data include the chess score of Go masters, the chess score of real opponents and the chess score of "Alpha Dog" playing by itself. These chess scores are the source of "intelligence" for "Alpha Dog" to improve its chess skills. In terms of digesting the chess score and learning progress, the ability of "Alpha Dog" is beyond anyone’s reach. Ke Jie, the world champion, can play up to 1,000 chess games a year, while Alpha Dog can play 1 million chess games a day.

  This makes the improvement of "Alpha Dog" chess power open, and there is almost no "ceiling". On the premise of not modifying the "Alpha Dog" program, the "Alpha Dog" can achieve the progress and improvement of "new day by day" or even "new from time to time" as long as the chess score of high-quality chess is continuously increased. It is objectively proved that the research team of "Alpha Dog" has basically mastered the winning mechanism of Go and described it in programming language.

  This remarkable ability includes two aspects: one is to judge the advantages and disadvantages of the existing disk; Second, based on this judgment, the possible position of the next move is decided, and a decision is made after the value judgment of several possibilities. Whether it is to judge the value of a certain move or the quality of the whole disk, it is necessary to construct a certain mathematical model and accurate algorithm.

  The success of "Alpha Dog" shows that its R&D team’s efforts in this regard are very close to human cognition, and machine learning has stood on the threshold of human brain learning. Super-first-class chess players found that "Alpha Dog" can even discover the laws and knowledge that human beings have not discovered for thousands of years from big data, which means that human beings have opened up new channels for expanding their knowledge system.

  What is the use of artificial intelligence

  Because of the realistic ability and potential ability displayed by artificial intelligence, all countries in the world are trying to use artificial intelligence for national defense and army building. As far as reality is concerned, the application of artificial intelligence in military field is mainly reflected in three aspects.

  The first is an unmanned combat platform. The existing unmanned combat platforms, whether unmanned aerial vehicles, robots on land or unmanned submarines at sea, have low intelligence. Generally, it only replaces people for some specialized operation. On the battlefield in Iraq, the US military used more than 4,000 robots to detect mines, roadside bombs and operate in some dangerous areas. The US military has more than 8,000 aerial unmanned systems and more than 12,000 ground unmanned systems, which have become an indispensable part of the US military’s operations. The development of artificial intelligence technology can make unmanned platforms more "smart" and improve the combat effectiveness of weapons and equipment, but it is not possible for unmanned platforms to make independent decisions so far.

  The second is intelligent precision ammunition. The US military used advanced laser or TV guidance in missile technology, which began in the Vietnam War in the 1970s. Its "Gemstone Road" missile hit more than 60% on the battlefield in Vietnam. The JDAM "Joint Direct Attack Ammunition" equipped by the US military adopts a more advanced guidance mode: inertial guidance +GPS satellite guidance. The "Joint Direct Attack Ammunition" during the Gulf War can only add target data before taking off. In the Iraq war, its receiver can receive the target data from navigation satellites, and can change the target at any time to destroy it, and its "intelligence" is obviously improved.

  The third is command-assisted decision-making. Think of "Alpha Dog" as a command and decision system of black-and-white confrontation, and its excellent performance in cognitive decision-making of black-and-white confrontation, and its ideas and methods should be used for reference for operational command and decision-making.

  Situation awareness on the battlefield is very complex, and multi-source intelligence gathers to form massive data, which cannot be completed by relying on the commander’s manual analysis. Artificial intelligence has great advantages over human beings in searching, storing, calculating and mining massive data. Introducing a deep learning algorithm similar to "Alpha Dog" to intelligently analyze satellite images and radar data will greatly improve the efficiency of intelligence analysis.

  In addition, at present, the cognitive understanding of the comprehensive battlefield situation depends largely on the commander’s experience and intuition. Using the "value" algorithm similar to "Alpha Dog" to judge the situation of Go and the probability of winning or losing, and learning from the "strategy" algorithm similar to "Alpha Dog" to determine the position of the player, it can provide auxiliary support for the commander’s operational decision.

  However, the application of artificial intelligence in the military field is far from reaching the level of independent decision-making like "Alpha Dog" Go. In November 2001, Predator UAV launched an attack on Al Qaeda military commander Mohammed Latif in Afghanistan, which became the first anti-terrorism actual combat of UAV. But it is the drone operator who controls from the rear who presses the "fire" command. Even so, it will inevitably bring collateral damage to innocent civilians. In 2013, Pakistani officials announced that since 2008, the US military has launched more than 300 drone air strikes in Pakistan, killing more than 2,000 innocent civilians.

  What is the future of artificial intelligence?

  From the situation that the world’s first-class Go players, Li Shishi and Ke Jie, have little chance to win the game against "Afa Dog" and the result of complete defeat, it is not exaggerated to draw the conclusion that artificial intelligence has surpassed human beings in the field of Go. In the game of Go, the obvious advantages of artificial intelligence are as follows: without fatigue curve, intelligence will not decay with time; There are basically no mistakes, and no opportunities will be given to opponents where they can; Free from emotional interference, not angry and impulsive because of the provocation of opponents; Learned and memorized, learning and playing chess more than ten million times before the game, which is beyond the reach of human beings; Powerful computing power is beyond the reach of human beings.

  But the victory of "Alpha Dog" is, in the final analysis, a human victory. The research on the mystery of human thinking and brain science is still superficial, and the development of human brain is far from exhausted, but the mechanism and composition of computers and artificial intelligence, no matter how powerful, are well known, because they were originally designed, manufactured and developed by people.

  At least so far, any artificial intelligence has the ability given by human beings. It is not surprising that it surpasses human beings in some ways. Humans make up for their own shortcomings by making various tools, a process that began in the Stone Age. Today, the major means of transportation far exceed human’s walking ability, and various machine manufacturing systems far exceed human’s unarmed manufacturing ability. Digitalization, networking and intelligence are the basic tracks of the development of the information society. It is expected that artificial intelligence will show its great power in the mature stage of the information society.

  Then, will there be a first-class military commander completely defeated by an artificial intelligence command system with strong deep learning ability in the battlefield in the future? To fully answer this question requires a masterpiece, but there are many essential differences between chess game and battlefield confrontation. For the following reasons, the author thinks the answer is no.

  One is the one-way transparency of the battlefield and the two-way transparency of the chess game. In the game of Go, both sides of the game are equal and transparent, regardless of the chessboard structure or the disk situation. However, the modern battlefield spans the virtual and physical space of land, sea, air, sky, electricity and internet, and the weather, weather, rain and shine, flood and tide are unpredictable. Clausewitz’s "battlefield fog" covers the battlefield. Even if it is a close confrontation, the battlefield space can never be transparent in both directions. The party with strong perspective observation can realize that the battlefield is more transparent to itself. Two-way reciprocal transparency in battlefield space has never existed and will never exist.

  The second is the certainty of the value of chess and the uncertainty of the effect of combat action. In the game of Go, the value of one player’s move is almost certain on the disk. An opponent can weaken the value of his next move, but he also has the same chance to fight back.

  However, the effect of combat operations on the battlefield is uncertain. In October 2001, the United States Joint Forces Command published "Effect-based Operations", and the US military formally accepted the theory of "Effect-based Operations". In 2008, General james mathis, the current U.S. Secretary of Defense and then commander of the United States Joint Forces Command, issued the Guide to Effect-based Operations, which officially abolished the theory of Effect-based Operations. Matisse’s reason is: "All combat environments are full of countless changing factors, so it is logically impossible to accurately predict the outcome of an action."

  The third is the authenticity and deception of the situation. On the board of Go, the situation of the board seen by both players is clear and true. But as Lenin said: "There is no war in the world without strategy." Strategic and tactical deception is a common tactic in war.

  The fourth is the strict game between the two sides and the potential multi-party participation. On the chess board, the two sides of the game are strictly limited between the two sides. Although there is a team behind the "Alpha Dog", it cannot change the nature that they are one of the two sides. In the history of human wars, especially since World War II, many local wars are actually "proxy war", where two sides or three parties join in the battle. Behind them, the situation is complicated and the behind-the-scenes promoters are hidden. For example, in the battlefield in Afghanistan, al-Qaeda is the target of the US military; On the Syrian battlefield, however, they may get some support from the US military because they are anti-Syrian forces.

  The fifth is the symmetry and asymmetry of space, time and weapons and equipment. In the game of Go, the time and space of both sides are symmetrical, and the weapons and equipment are black and white chess pieces. Although they are black first, they must pay back. In the real battlefield, preemptive strike is asymmetric in time, and air-to-ground attack is asymmetric in space. The wars of the United States against Iraq and Afghanistan are the wars of information-based weapons and equipment against mechanized weapons and equipment in the agricultural era, respectively, and there is intergenerational asymmetry in weapons and equipment between the opposing sides.

  Sixth, the certainty of chess rules and the flexibility of operational principles. In the game of Go, "Jinjiao’s silver-edged grass belly" is the basic value judgment criterion, and it is the basic chess rule … … The connection is broken, the dragon is encircled, and the eye position is broken, which is to avoid passivity with all one’s strength. These rules are basically certain and must be observed. Militarily, victory is no longer an important tactical principle. However, in the Anti-Japanese War, Liu Bocheng made a second ambush in Qigen Village, which became a classic of military command and a stroke of genius.

  Clausewitz said: War is a kingdom of uncertainty. The most essential difference between Go and military confrontation is the difference between certainty and uncertainty. The success of artificial intelligence is an amazing scientific achievement; But military command is not only science, but also art. The superb command art is more derived from the commander’s imagination and inspiration, generate, who said, "The wonderful operation is single-minded".

  Generally speaking, the application of artificial intelligence in the military field will enter an unprecedented active era with the development of technology, but the leader of war or battlefield will always be people.

  (Author: Wu Minwen Unit: National Defense Information College)

Bungie classic FPS game "Marathon" was put on the shelves of Steam, and the original was released in 1994.

The open source community maintenance version of the 1994 classic FPS game Marathon by Bungie Studio, the developer of Destiny and Halo, has been put on the shelves of Steam, and the official date has not yet been announced.

▲ 《Classic Marathon》Steam page

, which can run on macOS, Windows and Linux systems, natively supports Marathon, Marathon 2 and Marathon: Infinite, and many third-party maps, supports online play by up to 8 players, and uses GPL v3 protocol to open source.

▲ Aleph One GitHub page

The Classic Marathon released this time is based on Aleph One.

▲ "Classic Marathon" game screen

IT House reported last year that Bungie is developing a new series of Marathon games, which will be launched on PS5, Xbox and PC platforms.

▲ Bungie’s new work "Marathon"

This article is reproduced from IT House. The purpose of reprinting is to convey more information, which does not mean that this site agrees with its views and is responsible for its authenticity. If the content, copyright and other issues of the work are involved, please contact IT House to inform us to delete it, and we will delete the content as soon as we receive the notice! This article is for reference only and does not constitute any investment and application suggestions. This site has the final right to interpret this statement.

How to make friends? Parents and children say this.

  The children’s friends’ communication is a family problem as well as a social problem. How should parents rationally treat their children to make friends? Please listen to what parents and children think about this problem.

  Give space, but don’t interfere.

  ■ Keep soldiers.

  Shanghai civil servants

  When my son was a child, I liked to watch him play with children outside, happy and carefree. Because at that time, parents often took it with them, and his children were basically children of neighbors or friends, so he didn’t worry about his circle of friends.

  After junior high school, my son’s circle of friends has been expanding, and there are more and more new friends and good friends. It can be seen that these friends have given him greater attraction. After school, I began to grind and haw and went home late. When I got home, I stopped playing with me or even talking to me. I sometimes joke with him as usual, or make him talk, but he ignores me. Asked why, he said, "Your topic is so boring." I asked, "Then say something interesting." He said, "Nothing interesting."

  Sometimes, in order to communicate with children, parents deliberately create a better chat environment, but unconsciously it becomes preaching, telling him how to make friends and what kind of friends he should make, but often after a few words, the child is impatient, feels distrustful of him, dissatisfied with his friends, or interferes with his freedom, and often ends the conversation with unhappiness.

  I understand that an adolescent child is different from a child. He will change, have his own ideas, want to be free, want to be independent, don’t want to be constrained, have simple ideas, love and hate, and tend to "be near Zhu Zhechi, and those who are near Mexico are black". Therefore, for my son’s circle of friends, intellectually, I support children to make friends. Because children have their own psychological needs, their own range of activities, and they like to chat and play with friends, which is normal. To give him some free space, parents should not interfere too much. But in fact, I am worried that he has no ability to distinguish, makes friends carelessly, goes astray and goes astray.

  In recent years, I have tried to understand children and try to understand them. But to be practical and realistic, for my children’s circle of friends, my performance is outward tolerance, inner worry, mental entanglement and psychological twist. It is really difficult to maintain a balance. I want to say, son, it’s not easy to understand you, and it’s also very difficult to be calm. I hope you can understand your parents’ pains, really make friends with them, and take your own path.

  Weiyu arrangement

  Know good friends in life

  ■ Ren Hongshu and Ren Shuqing

  Grade Three Students of Yinhu Experimental Primary School in Hangzhou, Zhejiang Province

  Our twin brother will be 9 years old soon. We are inseparable from birth. My mother often tells my grandmother that we are like shadows, but we are inseparable.

  Besides playing by ourselves, we have other good friends, but we seldom have the opportunity to meet our friends during the holidays because they are going to travel or have classes. This summer vacation, my mother gave us lessons in basketball, fighting and swimming. In swimming class, we met a new friend Xiao Chao, who often dived into the bottom with us and held his breath longer than anyone else. In the fighting class, we met a naughty 5-year-old little brother named Xiao Zi, who was beaten and cried when he practiced with us in "fighting actual combat". In basketball class, we also made a new friend. He always plays basketball games with our group. Mom said, let’s cherish our good friends and learn to be humble and help each other to become long-term friends, but we don’t have their contact information.

  Later, we added five friends to each other with our phone watches, and we would talk about our favorite Altman in the watch’s friends group. Mom is our watch manager. She is always worried that we will make some strange and malicious friends, but what do we think is there to worry about? Mother gave us many examples reported in the news. She said that we should know something about online fraud, stealing bank account passwords, misleading children on online platforms and other illegal acts. She encourages us to find and know good friends in real life.

  In fact, all the friends in our watch circle of friends know each other. We also told our mother that if we were strangers and friends, we would definitely ask our mother first. If this friend says something strange or bad when chatting with me, I will delete him. Under the reminder of the school teacher and mother, we have learned to tell the difference. My mother often said, "If you are near Zhu Zhechi, you will be black if you are near Mexico." She encouraged us to make more friends and learn to make friends with good character and easy to talk to. In fact, that’s what we think in our hearts. Let’s make progress together.

  Hongyan arrangement

  Timely guidance without leaving a trace

  ■ Yan Haiping

  Police of Binzhou Public Security Bureau, Shandong Province

  There are twin girls at home, and now they are going to the sixth grade of primary school soon. I didn’t interfere too much in the matter of children making friends, especially before the third grade of primary school. Children, what can you have in mind? You can play with whoever you are happy with.

  There is a female classmate in the second daughter’s class. Because her mother and I are on good terms, the children have a good relationship. But this girl is particularly naughty. When she was in the third grade, she didn’t make progress in her studies. Sometimes she didn’t write her homework, and she always liked to make her temper. So many students didn’t like her and asked my daughter to ignore this female classmate. I said, what do you think? The second daughter said that others don’t like her, so I can’t ignore her, or she won’t have any friends. After all, we have been playing since childhood. Therefore, if the girl leaves the order at recess, the second daughter will accompany her and always regard her as one of her friends. Two years later, the girl stayed with her daughters in my mother’s house for a few days during the summer vacation of grade five. As a result, the walls of the house were scribbled, and one of grandma’s compact and lipstick was broken and the other could not be found. I asked three children, but they all said they didn’t know, but my mother retired and stayed at home all day, so I knew what was going on through many details. In front of the children, I couldn’t bear to tell the truth, so I educated the three children together.

  Later, I gently mentioned the matter to the girl’s mother. She said that her daughter was like this at home. She often messed up her cosmetics, and even the hidden ones could not escape bad luck. After this incident, I didn’t say I wouldn’t let them play together, but when we talked, the daughters themselves said that if a person did something wrong and didn’t admit it, it would be related to quality. Later, I found that my daughters were gradually estranged from this girl.

  I have paid attention to many educational cases and found that children who make so-called "bad friends" are often thirsty for the only friendship because they have no other friends and have a tense relationship with their parents, and few people are willing to listen to their voices. Therefore, after children come home from school, parents should chat with their children more often, and don’t ask about learning as soon as they come up. They can start with "What’s new in today’s class". Adults show their willingness to listen, and children are interested in talking and talking. At this time, if there is a problem, they can guide them in a timely manner without leaving a trace.

  I firmly believe that if a family is warm, harmonious and loving, children will not feel lonely. Children with good personality, natural friends, strong selectivity, will naturally compare, identify and screen.

  Those who believe in people will be faithful to them.

  ■ Yixi Zhuo Ma

  Ninth-grade students of Lhasa No.7 Middle School in Tibet

  My parents are very supportive of my social interaction and respect my choice of friends. I am shy, so I don’t have many friends, but my parents trust me, which makes me feel relaxed. My friends’ parents know each other, and sometimes my parents take me and my friends to get together.

  I am not allowed to bring my mobile phone during school, so I will use my parents’ mobile phone for a short time when I am at home on weekends, and I just talk to my friends about my weekend homework, watch short videos after finishing my homework, and basically never send a circle of friends.

  I like my parents’ trust and support, so I am very willing to share with them what I have experienced in school. Sometimes I have some unhappiness with my classmates and ask my parents what to do. Usually, they are very patient, and then tell me that friendship is indispensable, treat people sincerely, respect others and live in peace with classmates.

  As a middle school student, we spend less time with our parents and more time with our classmates and friends. I think friends are the people we are most close to in our lives, and they have a great influence on me. But our middle school students’ outlook on life is not perfect. If we don’t pay attention to making friends, it will have a very bad influence on us. I saw on TV that some middle school students delayed their studies because they staggered their friends, and even embarked on the road of breaking the law and committing crimes.

  In my opinion, another thing that my parents can rest assured about making friends with me is that I will grasp the criteria for choosing friends. If you have common aspirations, interests and lofty moral character, you can meet each other with your heart, treat each other sincerely, be honest, reliable and upright, because the most important thing for a person is his character, and of course, the same interests are also important. But if a person’s character is not good, even if he has more hobbies in common, it is useless.

  In my opinion, true friends should be intimate, intimate and caring for each other. To maintain a good relationship between friends, we should first trust each other. As the ancients said, "People who believe in others are faithful to each other." Therefore, if you want to gain the trust of your friends, you must first trust your friends, and it is fundamental to treat each other with sincerity. At the same time, I should try to cultivate a wide range of interests and establish friendship with my classmates in various activities.

  Our reporter Qiong Da Zhuo Ga finishing

  Listen carefully and stay "online"

  ■ Wang Huizhen

  Staff of Propaganda Department of Party Committee of China Railway No.20 Bureau No.5 Company

  Around us, we often hear many parents share their true stories about setting up a "circle of friends" for their children. For example, do a comprehensive "scan" of children’s friends’ academic performance, conduct habits, and even their parents’ levels, circles, and views, and measure whether the door is improper? Household, right? Compare one by one and set an excellent "circle of friends" for your children.

  We all hope that our children can make friends with excellent people, but children also have people with similar interests.

  I remember when my son was in elementary school, he told me anxiously one day: "Mom, the head teacher talked to me today and told me to stay away from GP, saying that he would affect my study. But I just want to make friends with him. He is very loyal … …” I know that GP is my son’s best friend, but also a famous "poor student" in the class.

  Although I have always believed that academic performance is not the only criterion for children to make friends, the "notice" of the head teacher really makes me uneasy. After dinner, I talked to my son about his good friend. "Do you want to go to college with GP?" "Of course." I immediately asked, "Would you like to help him improve his grades? If his grades are good, the teacher will not hinder you from making friends. " "I do!" So, for a long time, my son not only took time to help GP with his lessons, but also made great efforts in his own study. He said that he can help his good friends better if he is better.

  At that moment, I was extremely gratified.

  One day not long ago, I was watching the official Tik Tok of our company, and suddenly I caught a small video of my son singing and dancing. When I looked intently, my 15-year-old son actually registered a Tik Tok account, which also published many works of his self-portrait. There were classmates and playmates in the circle of friends, Xueba, who won the first place in the joint entrance examination of the three schools, and "scum" who was famous on the list and failed in many subjects … …

  At that moment, I was a little panicked. In the past, the child who kept chasing his mother every day suddenly had his own "circle of friends". And I am not a member of the circle.

  For my son’s "circle of friends", I always tell myself: give up the desire to control and guide it properly. I didn’t blame my son for opening the Tik Tok, and I didn’t blame him for not reporting to me. I just reminded him that he must be moderate in making videos and be more careful in replying to comments from strangers. I don’t restrict him from joining the "the glory of the king" game clearance group, but I will tell him not to add strangers as friends casually. I don’t restrict his freedom to make friends, but I will talk to him about what happens at school every day at the "heart-to-heart meeting" before going to bed at night and exchange my views with him.

  Now, I have successfully entered my son’s "circle of friends". As always, listen carefully and stay "online".

  Make friends who give positive energy.

  ■ Chen Yuange

  Senior one students in the middle school attached to Beijing People’s Congress.

  My parents have always been concerned about my friends, but they don’t interfere, guide but don’t interfere. I believe they, like all parents in the world, want to use their experience to help their children choose friends because they are worried that their children will be infected with bad habits.

  They never tell me who you should or should not make friends with, nor do they instill values directly into me. They want me to have my own thinking and judgment, and establish the correct and my own criteria for making friends.

  For example, they will ask me, "You like playing with someone recently. Can you tell me what his advantages are?" "What makes you want to be friends with him?" "You wish you could be like him, don’t you?" This way, I can see my inner standards when making friends, and I can communicate with people according to my inner needs in the future.

  At the same time, they encouraged and led me to make more and better friends. Mom and dad often ask, "Are you happy when you play with your friends?" "Friends are very important to you. What do you think you should do to maintain a good relationship with your friends?" In this way, I unconsciously made some good friends who can give me positive energy.

  Because of my parents’ inner guidance and letting go, I learned to communicate with children since I was a child, so I have always had a good relationship with my classmates at school. I have all kinds of friends around me, some of whom have common hobbies and similar personalities, and some of whom have good relationships just because they can talk. I think as long as I am a friend, I will cherish this friendship. For the intimate, we will communicate more, share our happiness and share each other’s sadness. For other friends, I will also listen, help or ask for help, while we don’t bother each other at ordinary times. In this way, I will not only be influenced by some friends’ bad habits, but also maintain good relations with all my classmates.

  I think parents should not interfere too much with their children’s circle of friends, but should give their children the right to make friends. Too much interference from parents does more harm than good. Adult communication is more complicated, but children are different. Their friendship is simple and pure. It is obviously unreasonable to measure the friendship between children by the rules of making friends for adults. However, parents’ non-interference does not mean laissez-faire. Parents should be the supervisors of their children’s circle of friends, and once they find problems, they should help their children solve them decisively. In the critical period of children’s habit formation, if children learn bad behaviors when making friends with others and parents fail to correct them in time, bad habits will be completely formed in the future. So I think parents should not interfere, but should supervise rationally.