On January 18, 2024, Huawei announced that the developer preview of HarmonyOS NEXT Hongmeng Galaxy Edition is open to developers, which means that the Hongmeng ecosystem has entered the second stage, which will accelerate the application of Hongmeng in thousands of industries.

Yu Chengdong, executive director of Huawei, CEO of End Point BG, and chairperson of BU Smart Car Solutions, announced the latest progress of Hongmeng Ecology: The number of Hongmeng ecological devices has increased from 700 million to 800 million in 5 months, and all kinds of industries are connected, which will open a new blue ocean of trillion-level industries. At present, the first batch of more than 200 application manufacturers are accelerating the development of Hongmeng native applications. Yu Chengdong said, "In 2020, it is proposed that’no one can extinguish the starlight in the sky ‘. With the joint efforts of many partners and developers, the trend of Hongmeng Ecology has become a reality. As a full-scene operating system for the Internet of Everything, Hongmeng Ecology belongs to every developer."

It is reported that Hongmeng has been building a full-scene operating system for nearly ten years since the project was established in 2015. At present, Hongmeng system has been running on many full-scene devices. HarmonyOS has taken root and broken through the core technologies of operating system kernel, AI big model, AI framework and compiler, programming language, etc., laying a solid foundation for ecological construction. In particular, Hongmeng kernel, beyond the traditional kernel, has the characteristics of more flexibility, more security, more fluency, and more adaptable to the diversity of all-scene devices.

The Hongmeng Galaxy Edition, which is currently open to developers, will create the ultimate experience of native delicacy, native ease of use, native fluency, native security, native intelligence, and native interconnection. Hongmeng will also become an operating system that connects hardware, scenes, supports diverse interactions, and circulates freely.

Since Huawei announced the upcoming release of HarmonyOS NEXT in September 2023 and the full launch of Hongmeng native applications, the first batch of more than 200 Hongmeng native applications has been accelerated, covering convenient life, travel and tourism, financial convenience, social information, productivity tools, audio and video entertainment, games and other fields. The Hongmeng native application landscape has basically taken shape. At the same time, Ant Group, China UnionPay, iFLYTEK and other partners have also opened up vertical innovation capabilities. Together with Huawei’s base capabilities, it provides developers with an efficient full-link power builder. The development workload can be reduced by up to 90%, helping the industry accelerate the development of Hongmeng applications. Partners can also quickly access the Hongmeng ecosystem through the minimalist development of meta services.

A steady stream of talents is also an inexhaustible driving force for ecological growth and advancement. In terms of talent training, 305 college students have participated in Hongmeng activities, Hongmeng campus open courses have entered 135 colleges and universities, 286 enterprises have participated in Hongmeng Ecological Academy, 380,000 + developers have passed Hongmeng certification, and more than 150 industry-university cooperation projects have provided a well-stocked "granary" for the continuous innovation and prosperity of Hongmeng ecology.

Hongmeng is a new ecosystem facing the all-scenario era. With the Hongmeng ecosystem entering the second stage, Huawei expects to join hands with more developers to accelerate the application of Hongmeng in thousands of industries.

At present, under the distribution of Hongmeng’s full-scenario service, 87.6% of the required cockpit operations will be completed by Xiaoyi; the number of mobile phone Xiaoyi MAU users has exceeded 200 million, and the intention items covered by Xiaoyi scene cards have exceeded 100. A new ecosystem of "everything is a service, everything can be shared" has been formed.

The end-cloud collaborative native intelligence feature of Hongmeng Galaxy Edition can not only benefit users, but also support applications to use large model capabilities efficiently and safely. As low as "one line of code", Hongmeng native intelligence can be called, allowing developers to apply "zero-cost" AI. In addition, relying on the new "heterogeneous native" parallel mechanism of Hongmeng Kernel, it can make the kernel extremely smooth and improve the efficiency of memory management by 3 times.

Hongmeng’s internal nuclear-level security capabilities have been certified by the industry, and through innovative privacy architecture, the pop-up authorization has been greatly reduced, reducing the risk of privacy leakage from the root cause, enhancing consumers’ perception of privacy protection in an all-round way, making the experience simpler and privacy more secure.

In order to further boost the development potential of Hongmeng’s ecosystem, Huawei announced the "Yaoxing Plan" to invest 7 billion yuan to encourage Hongmeng developers to innovate in Hongmeng’s native applications, meta services, SDK, etc. At the same time, Huawei will work with partners to rely on Hongmeng Ecological Academy, universities to jointly cultivate Hongmeng talents, and cities to release Hongmeng talent training policies to cultivate 100,000 Hongmeng developers every month. And announced the opening of the 2024 HarmonyOS Innovation Competition, providing developers with an open API for training and continuous advancement through competitions.

Hongmeng Galaxy Edition is expected to release a developer beta version in Q2 2024, and a commercial version for consumers in Q4.

　　　 On the evening of May 28, South Korea’s popular idol Rain dedicated the last stop of his world tour environmental protection concert to Guangzhou, which was also his "farewell carnival party" before enlisting in the military. That night, Rain not only showed all kinds of dance skills, but also played a wet show on the spot. He was so high that he even tore his shirt to show off his chest muscles, which made the scene boil. Fans praised Rain’s concert as a six-star enjoyment.

Show dance skills

Hot girls dance

　　　 Dance was the soul of Rain’s concert. During the two-hour concert, except for a few slow songs in the middle, Rain almost filled the audience. The nearly 20 minutes of non-stop singing and dancing also fully demonstrated Rain’s amazing endurance.
　　
　　　 In addition, Rain also improved the classic electric hip movement in MJ dance, and danced close to the hot girl dancers on the stage, which caused the scene to scream. In addition, he also brought chair dancing and pole dancing to the stage, showing the charming and enchanting dance moves. Halfway through the concert, Rain put on a cute plush vest and commanded the audience to stand up and dance with him. Fans responded with glow sticks and twisted their bodies to their heart’s content, and the heat of the scene continued to rise.
　　
Show body torn shirt plus live broadcast backstage dress up
　　
　　　 Rain has never been hesitant to show off his good figure, and that night he also performed a good show of "singing one song and taking it off" as usual. When he took off his black vest, he would occasionally make a gesture to tease the audience.
　　
　　　 When singing "Lovestory", he suddenly ripped off his tight gray T-shirt to reveal his toned pecs; then when performing "LoveSong", Rain ripped off his black vest again and pulled his clothes to vibrate his pecs. At the same time, it rained in the center of the stage, and Rain knelt in the rain half-naked and performed a wet show. After the song was over, the audience fell silent, leaving only Rain’s heavy gasps. Then a rivet coat parachuted into the middle of the stage, Rain slowly stood up around the clothes, and finally pulled up the vest and took it off. The toned figure was finally fully revealed. He circled around the coat, showing his pecs and abs in all directions, which made fans feast their eyes.
　　
　　　 It is worth mentioning that when Rain returned to the backstage to change his clothes for the first time, he also ingeniously broadcast the change scene on the big screen. He greeted the camera and fans while cooperating with the staff to change his clothes, shyly pushed the camera away when changing his pants, and the whole set of clothes he brought from Korea was also exposed to the audience, and the various clothing accessories were quite eye-catching.
　　
Tease fans to show Chinese, blow kisses, and shoot each other

　　　 The interaction between Rain and Guangzhou fans that night could be described as passionate. As soon as he came on stage, "Guangzhou fans, I love you" and "No, thank you (thank you) ", the fans were very excited. In addition to words, the tacit understanding between Rain and fans was more from those "cute" and unworthy small movements. When he blinked his sexy single eyelids, raised the corners of his mouth, and discharged into the audience, the audience almost boiled. And sometimes he turned his head to lick his lips, and sometimes he winked at the audience, which made many fans choked with excitement. In the encore, he also kept flying kisses, and finally took out his mobile phone from his pocket to play and take pictures with the fans taking pictures under the stage, recording the madness and passion on and off the stage.

　 　 In 2013, Xiaomi launched its first smart TV product, which has now reached the fourth generation. The TV system is also constantly being upgraded and evolved. New and old models have been equipped with or upgraded to the PatchWall puzzle wall system. The following small settings may make your Xiaomi TV easier to use.

1. Commonly used software is placed on the first screen

　 　 Although Xiaomi TV has assembled several video platforms, it still has certain limitations in terms of resources, so it is still necessary to install some third-party video software. Of course, the simpler the steps to open these software, the better.

Put the software at the top and it will appear on the first screen.

　 　 The software entrance of Xiaomi TV is located on the homepage of the desktop, but only 5 icons will be displayed, and the others will be folded in "More". The newly installed software will be automatically arranged backwards and will not be displayed on the homepage. At this time, you only need to click "Sort" above to put the commonly used software at the top, so that they can appear on the homepage. Each time you open it, you don’t need to look for it for a long time.

2. Automatically clean up TV waste

　 　 The current Xiaomi TV basically comes standard with 2GB of memory + 8GB of flash memory, which is enough under normal circumstances, but it will occasionally feel stuck after using it for a period of time. After all, it is the Android system. At this time, you can use the built-in "one-click acceleration" and "one-click cleaning" tools of Xiaomi TV.

TV Butler turns on automatic cleaning

　 　 In fact, there is no need to wait for the TV to change the card before using these two tools. In the "TV Butler", automatic cleaning can be turned on, and the cleaning frequency and cleaning timing can be customized, which saves a lot of trouble.

3. Remote control wired set-top box

　 　 A few months ago, along with the arrival of the Xiaomi TV 4A came the latest generation of Bluetooth touch voice remote control. The voice function goes without saying. This remote control, which sells for 99 yuan, also has a very magical function. It can control the cable TV set-top box at home, thus eliminating the need for frequent switching between the two remote controls.

The binding process of TV remote control and cable set-top box

　 　 How to do it? First, you need to enter the display interface of the set-top box, press the menu button of the remote control, and select "Bind the set-top box" on the pop-up interface. According to the prompts on the TV, after setting the city and region where you are located and the operator of the cable TV set-top box, you can start matching, and the matching will be successful soon.

Voice Switch

Press the OK button to enter the live TV wall.

　 　 After matching, you can use the up and down buttons of the Xiaomi remote control to change the channel. At the same time, it also supports voice change. If you directly say the channel you want to watch, it will automatically jump. In addition, if you press the OK button of the remote control, a live TV wall will appear, which will display the current live program information. It is much more convenient than using a wired remote control. The only inconvenient point is that you cannot control the opening/closing of the set-top box.

4. Block boot ads

　 　 Xiaomi TV now has 15/30 second advertisements when it is turned on, and many other smart TVs are basically the same. In fact, you can make the boot advertisements no longer appear through settings.

　 　The setting needs to be carried out on the router. The router must have the function of URL blocking. After entering the router management background, add the above URLs to the blacklist, so that the TV will no longer receive advertisements.

　 　 If you find other interesting skills when using Xiaomi TV, please leave a message to share. ■

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Editor of this article: Li Fusheng

Pay attention to bubble network, enjoy technology life.

The national automobile brand Hongqi is a household name. From annual sales of less than 5,000 vehicles to production and sales of more than 300,000 vehicles, from single models to diversified models… In recent years, under the background of the transformation and upgrading of the global automobile industry, China FAW Group Co., Ltd. has stimulated corporate vitality and improved operational efficiency through reform, and strived to explore the road of high-quality development. At present, FAW is comprehensively promoting electrification, intelligence, and networking to expand the upward development space of national automobile brands.

Reform, let FAW "reborn"

Yang Yongxiu is a senior technician at FAW Research and Development Institute. In recent years, FAW’s accelerated reform has given him more room to display his talents. He is mainly responsible for the numerical control processing of core precision components such as high-end engines, gearboxes and chassis independently developed by Hongqi. He has overcome more than 130 technical problems and saved and created more than 12 million yuan of value for the group company. At the age of 35, he has won honors such as National Technical Expert and National May Day Labor Medal.

"There are still many young people like me in FAW, and the stage will be as big as everyone’s dreams, technology and ability," he said.

In 2017, FAW carried out the "four-energy" reform, that is, "cadres can go up and down, employees can come in and out, salaries can be high and low, and institutions can increase and decrease". The whole group competed for recruitment, senior managers competed for positions, the average age dropped by 3 years, and the proportion of young cadres increased by 13.3%. At the same time, the market-oriented reorganization of the organization formed a more professional, fine and flat structure and operation model, and the group headquarters was directly responsible for the operation of the Hongqi brand.

The reform has stimulated a sense of competition, and FAW employees have become more motivated. It has become a general consensus to compete for jobs, and the sense of crisis has also increased.

In September 2020, FAW implemented a more systematic reform of the new three-year term of office for senior managers, setting goals first and then taking up positions, and encouraging challenges to high goals. The matching of senior managers was completed within a week, and the average age of cadres was reduced by 1.4 years. According to the plan, these reform measures will continue during the "14th Five-Year Plan" period to continuously stimulate employees’ enthusiasm for entrepreneurship.

Innovation makes FAW "alive and kicking"

Since the establishment of the Hongqi brand in 1958, it has become one of the representatives of China’s national automobile high-end brands, but its marketization road has not been smooth sailing. Since 2018, Hongqi has highlighted the brand core and created four product series of L, S, H and Q. Sales will exceed 300,000 in 2021, an increase of more than 60 times in 4 years.

Behind this, it is inseparable from the corporate culture that places more and more emphasis on innovation. After the launch of Hongqi H9, H9 + models were also launched one after another. H9 + models are divided into Dunhuang version, Magnolia version and Forbidden City version. These models are combined with traditional Chinese culture, which is refreshing.

In the first two months of this year, the red brand sold 63,800 units, an increase of 40% year-on-year.

The sales volume of the Hongqi brand depends not only on marketing, but also on the support of technology. FAW’s total R & D investment in 2021 was 21.42 billion yuan, an increase of 3.9% year-on-year, accounting for 3% of revenue; it achieved 63 key core technology breakthroughs and completed 4,757 patent applications. Among them, the first domestic V-shaped 8-cylinder direct injection supercharged (referred to as "V8TD") engine independently designed by FAW completed trial production last year, reaching the leading level of similar models in the world. The domestic snowmobile jointly developed by FAW and China Aerospace Science and Technology Corporation Co., Ltd. broke the long-term monopoly of foreign brands on the Chinese snowmobile market.

FAW Party Secretary and Chairperson Xu Liuping said that each Red Flag product must have more than two global premiere technologies, otherwise it will not pass the product definition.

Open up, let FAW "walk in the forefront"

Xu Liuping said that Hongqi aims to become the leading independent high-end passenger car brand, and FAW is committed to building a global brand influence.

At the end of February, FAW and BYD joint venture power battery project officially started, the total investment of the project 13.50 billion yuan, all reached the post-production will meet the 1 million sets of electric vehicles supporting demand, to achieve output value of more than 20 billion yuan. Wang Chuanfu, chairperson and president of BYD joint stock company, said that BYD will strengthen cooperation with FAW, accelerate the transformation of green technology to the nearest landing, and contribute to making the national car brand bigger and stronger.

Cooperation can lead to win-win results. FAW has carried out in-depth cooperation with Huawei and other enterprises, as well as universities such as Tsinghua University and Jilin University, to expand the development space of enterprises.

The interaction between government and enterprises is also accelerating FAW’s "walking in the forefront". Jilin Province, Changchun City, FAW and State Grid jointly launched the "Banner E Spring City, Green Jilin" project, and strive to use 3 years to put 34,000 new energy taxis, online car-hailing, official vehicles, to achieve "battery bank" circulation battery 41,000 block scale, and 120 new operation and exchange power stations.

According to the plan, by 2025 FAW will achieve sales of more than 6 million vehicles, an average annual growth of about 8%; operating income of more than one trillion yuan, an average annual growth of 8% to 9%.

Xinhua News Agency, Changchun, March 20

1905 movie network news Recently, the fifth phase of the Jackie Chan Film Project A held a venture capital roadshow at the Jackie Chan Film and Television Media College of Wuhan Institute of Design and Engineering. This venture capital roadshow invited the fifth phase of the Plan A venture capital jury, teachers, directors, directors, shooting workshop instructors, directors, and others to attend the event.

Explore new forms of online cloud and set sail, Wuhan restarts venture capital roadshow

On November 16th, the opening ceremony and mentor class of the fifth phase of Jackie Chan Film Project A was held online. This instructor class focused on "virtual production" and brought immersive "virtual technology" teaching to the students. The instructors gave in-depth explanations on the practical experience of virtual technology, and discussed with the students how to balance the relationship between technology and art in the era of rapid technological development. They not only used the combination of new forms and new technologies to broaden the industry vision and expand thinking for young filmmakers, but also looked forward to the future of film through the teaching of digital technology.

On December 5, the fifth phase of Jackie Chan Film Project A’s venture capital meeting was successfully held at the academy. Tu Qing, director of the Wuhan Institute of Design and Engineering, mentioned, "The gathering of young filmmakers in Wuhan, the city of heroes, will also make this warm winter warmer."

In the project solicitation, the fifth phase of Jackie Chan Film Plan A received applications from more than 200 teams/individuals, with a total of more than 400 projects. After a rigorous review by the venture capital jury composed of Jia Zhijie, Tian Yusheng, and Yao Tingting, 8 groups of projects were finally selected to be shortlisted for the venture capital section of this Jackie Chan Film Plan A, namely "Love Before the World Collapses", "The Man Who Steals Fire", "The Strongest on the Surface", "Fire in a Urgent Situation", "Hunting Bureau", "Tiger in the Mountain" and "Hero".

During the venture capital session, the students showered their enthusiasm for the project, sharing and explaining their projects in multiple dimensions. The on-site guest judges also provided the most valuable experience from the market and drama level. The mentors and judges who were unable to come to the scene also provided professional advice to our young filmmakers through online comments.

Support young filmmakers, build dreams, and join forces online and offline

In order to deeply explore how young filmmakers can create excellent film projects, the industry mentors had a profound exchange and communication on the venture capital projects of young filmmakers. Not only did they give more suggestions on the creative path of young filmmakers in terms of story and play structure and genre, but they also analyzed the industry form from the perspective of the market and explored the future direction of film. The collision of ideas between mentors and students provides more guidance and possibilities for young filmmakers to create in the future. The collision is wonderful, the genre is diverse, but everyone’s purpose is the same – "everything has cracks, because that is where the light comes in" – and for young filmmakers, film is the light that illuminates the future.

No matter whether it is the judges of the project jury or the instructors of the "Short Film Shooting Workshop", they all mentioned that they have seen the innovation of young filmmakers in genres and plays in this shortlisted project. Not only are the themes more novel and the ideas more bold, but also the spiritual outlook is very promising.

At the end of the venture capital roadshow, Jackie Chan also came to the event and sent the most sincere encouragement and blessings to the young filmmakers. He mentioned: "Nowadays, the minds of young people are progressive, and some of their methods of shooting movies are beyond my imagination. I have also learned a lot from them."

The special project fund for film public welfare projects officially established by the Beijing Jackie Chan Charity Foundation Filmmakers Charity Special Project Fund in 2015 consists of two parts: "Young Filmmakers Project Support Program" and "New Filmmakers Training Program". It aims to provide limited support funds for small and medium-cost film production, provide professional training and film incubation for first-class top talents in the film industry, and care for reality through the power of film.

Since its launch in 2016, it has successfully carried out three special training camps with the themes of "Conducting Sino-US Film Exchanges", "Entering Film Special Effects Production", and "Exploring the Mysteries of Action Movies". In 2021, Chinese filmmakers will overcome the difficulties together and ride the wind and waves in the face of changes and challenges. The Jackie Chan Film Plan A also hopes to look forward to the bright future of young filmmakers through the fifth phase "The future has come, the unknown is known, and the unseen is seen", and build an exchange and learning platform for young filmmakers.

In the future, the Jackie Chan Film Plan A will continue to provide more opportunities and possibilities for young filmmakers, continuously injecting fresh blood and inexhaustible motivation into the industry, and helping the Chinese film industry to thrive.

Produced by Sanyan Finance

Author | DorAemon

On November 30, Meituan announced its third quarter 2020 financial results.

According to the financial report, during the reporting period, Meituan achieved revenue of 35.40 billion yuan, an increase of 28.8% year-on-year and an increase of 43.2% month-on-month. Achieved profit of 6.32 billion yuan, an increase of 374.1% year-on-year. Excluding the impact of fair value changes, profit and loss, the company’s adjusted net profit in the third quarter was 2.05 billion yuan, an increase of 5.8% year-on-year.

From a business perspective, Meituan’s catering takeaway business earned 20.69 billion yuan in the third quarter, an increase of 32.8% year-on-year; contributed 770 million yuan in operating profit, an increase of 132.2% year-on-year, and an operating profit margin of about 3.7%;

The revenue growth rate of the store, hotel and tourism business was 4.8%, generating an operating profit of 2.79 billion yuan, an increase of 19.5% year-on-year, and an operating profit margin of 43.0%.

New business and other businesses lost 2.03 billion yuan, an increase of 68.8% year-on-year.

Meituan handed over the third quarter report card, which can be described in four words: steady and steady. This financial report truthfully reflects the operating performance of Meituan company so far, and the overall performance is good.

However, I didn’t expect this financial report to be interpreted differently by various media for no reason. Meituan’s third-quarter results were described as a bit "flashy".

Clear the clouds and see the sun

The problem actually lies in the "change in fair value of investment listed entities RMB 5.80 billion yuan" disclosed in the financial report.

The proceeds were primarily derived from Meituan’s investment in Li Auto.

Previously, Meituan led Li Auto’s $550 million D round of investment, and Li Auto went public in the United States on July 30 this year. In the third quarter, Li Auto rose by more than 30%; and the ideal share price in the fourth quarter has also been performing well.

So some people bluntly said that Meituan’s performance depends entirely on "ideals".

With the media further hype brewing, the news about Meituan’s third-quarter earnings report in the past few days has actually formed a situation of "every Meituan must mention ideals".

Not only that, but various media also focused on the loss of new business in the financial report. Combining the increase in new business losses year-on-year and the profit of investment ideals, it was concluded that "Meituan actually did not perform well, and investment ideals were the’fig leaf ‘for its new business losses".

So much so that there are good people who write this matter into a joke, which is ridiculed by netizens.

But in all fairness, is Meituan really so "unbearable"? Now there is a threshold for the interpretation and analysis of financial reports?

So, what exactly does Meituan’s third-quarter earnings report show?

"Investing" is a normal operation

First of all, Meituan’s investment in Li Auto was successful and profited from it. This is indeed an objective fact.

In fact, contrary to what many media understand, this represents that Meituan has excellent investment vision and strategic thinking in the layout of cutting-edge technologies. Success is natural.

Investment is a normal behavior in business operations, and usually there are two main purposes for this kind of investment. The first is to lay out the layout of your own business ecosystem; the second is to broaden the company’s revenue channels, so as to obtain enough resources to expand your own business.

When a company reaches a certain scale, its business development must pay attention to layout and ecology. But to build a good ecosystem, it is often not covered by its main business.

So Meituan’s investment ideal has reaped profits. Although it seems to be a "cross-border", it is essentially based on Meituan’s long-term value judgment of an industry and supplements its own strategy and business.

New business strategic loss

Another question about Meituan is the loss of new business.

Meituan’s third quarter 2020 financial report shows that the new business and other items achieved revenue of 8.23 billion yuan, but the operating loss was 2.03 billion yuan, an increase of 68.8% year-on-year.

If it is foolish to regard the investment ideal as a "fig leaf", then combining the loss performance of Meituan’s new business with the investment ideal, saying that Meituan has many operational problems is bad.

Although "net profit" and "net loss" are indeed important indicators to measure a company’s performance in a company’s operations, they are not the "only indicator".

In short, a company’s loss doesn’t necessarily mean "the company is going to die".

Meituan’s new business and others mainly include shared bicycles and Meituan’s preferred business launched in July this year, which marks Meituan’s official entry into community group buying.

Wang Xing revealed that Meituan plans to cover more than 1,000 municipalities by the end of the year. And Meituan needs to better integrate resources, provide better products and improve supply chain and logistics.

In addition, Meituan is also responsible for developing various services and products in the entire platform system in order to optimize the user experience.

Sanyan Finance also reported in previous articles that "community group buying" has become a must for major Internet Tech Giants.

So to start a business in a new field, it is necessary to invest huge resources in the early stage. However, the investment is huge, and the return is not immediate.

So it is common for new business to lose money, otherwise how can it be called "new" business?

Furthermore, Meituan’s new business revenue growth just shows the hard power that Meituan has been accumulating "steadily". Because if there is no strong foundation laid by the previous development, how can you invest resources in the new business to seize the market and compete with other Internet Tech Giants?

Therefore, the ideal investment and new business losses not only fail to prove that Meituan "has no martial arts ethics" and relies on Li Auto to cover up the losses, but also prove that Meituan is an Internet company with unique vision and hard power.

Explore old businesses and develop new ones

Putting aside the misreading of Meituan’s financial report, Meituan’s overall performance in the third quarter was still quite good.

In addition to the financial data of Meituan’s various businesses mentioned earlier, let’s take a look at the performance of various business operations.

According to the financial report, Meituan’s annual active merchants reached 6.50 million, and the annual transaction users reached 480 million, showing a steady growth trend; this year, more than 4 million riders have achieved employment and income through the Meituan platform.

In addition, the average daily number of food and beverage takeaway transactions was 34.9 million, an increase of 30.1% year-on-year, and the average value of each food and beverage takeaway business order increased by 4.5% year-on-year.

Combined with the financial data, the transaction volume of food and beverage takeaway business was 152.20 billion yuan, an increase of 36.0% year-on-year; the revenue was 20.70 billion yuan, an increase of 32.8% year-on-year; the operating profit reached 768.5 million yuan.

Store, hotel and tourism revenue 65 billion yuan, an increase of 4.8%; operating profit 2.80 billion yuan, operating profit margin increased by 43.0%.

If we compare Meituan’s new business and old business data, we can see that Meituan has not given up its old business due to the development of new business.

In general, the total amount of resources is limited, and companies tend to allocate resources in a certain proportion. New business will receive more resources, while old business will have less resources to at least maintain the status quo.

That is to say, the underlying logic of this quota is to "explore new business and develop old business". There is nothing wrong with adopting this model for development. After all, new business often represents "unknown", and enterprises need to focus more on "exploration".

But for Meituan, Meituan’s business development is "exploring old business and developing new business".

The so-called exploring old business is actually constantly cultivating existing business with new ideas. After the epidemic, Meituan adopted a more accurate and high-quality marketing plan to upgrade in response to the arrival of the peak order season. This has increased the willingness of catering takeaway merchants to purchase traffic. Therefore, in the financial report, the platform’s third quarter takeaway online marketing service revenue increased by 60.1% year-on-year.

The essence of Meituan’s old business is actually to solve the problem of "food" for users. Like the emergence of takeaway services, it is convenient for users to eat what they want without leaving home.

Meituan did not stop on this basis, but instead asked users to upgrade to "eat better".

The core of this "helping everyone eat better and live better" is also based on the concept of consumption upgrading. Consumers’ dietary needs have become more abundant, and they must have more choices.

In the financial report, the order amount of food and beverage takeaway business increased by 4.5% in the third quarter, which shows that the platform brand merchants have improved; at the same time, the number of newly launched brand merchants in takeaway in the quarter increased by 157%, and consumers have more choices. In the third quarter, the booking business of Meituan Hotel also increased accordingly, and the high-star hotel cooperating with Meituan also increased significantly month-on-month.

At the same time, all kinds of "new tricks" have also been popularized and developed through the Meituan platform, such as escape room. Most merchants choose Meituan, Dianping and other platforms as their main way to acquire customers.

Meituan’s "development" of new business is actually an extension of old business, so it is called "development" of new business.

If "eating" is the core word of Meituan Company, then it can be said that all of Meituan’s business revolves around "eating".

Eat at home, Meituan takeaway; go out to eat, Meituan takes a taxi, Meituan bikes; want to play after eating, Meituan goes to the store…

Meituan’s new business is the same, which is based on the expansion of existing business. Meituan market and Meituan Preferred can be simply understood as the "shopping" service before users "eat".

Internet companies that adhere to "long-termism"

After understanding the underlying logic of Meituan’s business development, it is clear that Meituan is a company that adheres to "long-term doctrine".

Meituan has a clear development plan for what she wants to do and adheres to the long-term approach, which is the core concept of developing new businesses and exploring old ones.

And this development model also allows Meituan, as a platform-level company, to effectively promote the development of the industry. Especially when the entire industry encounters a crisis, such as the 2020 epidemic, Meituan can effectively help the market recover during and after the crisis, and solve the employment problem of a large number of riders.

In taking the "long-term" route, while fulfilling the various responsibilities and obligations of the company, the company needs to continuously invest resources. After all, firm goals are on the one hand, and to achieve goals, we must strive to explore value.

　

This article was first published on the WeChat official account Sanyan Finance. The content of the article is the author’s personal opinion and does not represent the position of Hexun.com. Investors operate accordingly, and please bear the risk.

On January 6th, Hengchi 5 announced the launch of the first OTA upgrade. With the blessing of intelligent technology, Hengchi 5 can achieve a full-area OTA upgrade for the entire vehicle life cycle, making car upgrades as easy as mobile phone upgrades.

It is reported that OTA refers to the over-the-air download system of the car, which upgrades the wireless system through mobile communication technology. Auto OTA refers to the upgrade of in-vehicle applications, multimedia systems, or the underlying system of the vehicle.

The upgrade of Hengchi 5 Automotive OTA includes optimizing sleep wake-up (low temperature vehicle wake-up optimization, power battery intelligent replenishment optimization); optimizing the function of vehicle slow charging mouth cover; optimizing the instrument anti-theft authentication display after the vehicle is powered on; optimizing communication network signals, etc., to improve the user experience.

It is understood that the Hengchi 5 will be pre-sold on July 6, 2022, officially mass-produced on September 16, 2022, and the first batch of vehicles will be delivered on October 29, 2022. It is currently being delivered in more than 20 cities across the country, including Beijing, Shanghai, Guangzhou, Tianjin, and Shenzhen.

On December 30, Hengda Automobile announced that Hengchi 5 is in mass production and has delivered 324 vehicles to users. In addition, in order to save costs, the group is carrying out a series of cost-saving measures, including reducing the overall number of employees, arranging some employees to stop work and rest, and reducing wages for some employees. It will continue to create favorable conditions for the mass production of Hengchi 5 with maximum efforts.

　　During the National Day holiday, some people choose to go out to play fresh, and some people choose to eat takeout "at home". Is the food safe? Is the kitchen hygienic? Will it be contaminated during delivery? You who order takeout can’t help but have such concerns. There is good news: recently, the Zhejiang Provincial Market Supervision Bureau launched the "Zhejiang takeaway online" digital platform, which is the first in the country to realize the whole chain closed-loop management of online catering from kitchen to table, from processing to delivery, from online to offline, and from merchants to riders. Can the digital platform control the safety of takeaway food? The reporter interviewed this.

　　"Black heart" takeaway nowhere to hide

　　"I saw your back kitchen through the live video broadcast of the takeaway platform, and it is cleaner than I thought." Recently, Liu Feng, who runs takeaway restaurants near Macheng Road, Xixi Street, Xihu District, Hangzhou, received messages from regular customers from time to time. In mid-July, a camera was added to the back kitchen of the store, and the other end of the camera was connected to consumers’ mobile phones.

　　Behind this change is a series of problems. According to statistics, there are currently more than 500 million online takeaway users in our country, and about 8 million takeaway riders. Takeaway catering has played a positive role in ensuring basic people’s livelihood and absorbing social employment. However, due to the long chain and many links, coupled with the emergence of new models and new formats, food safety supervision regulations, standards and means are not yet suitable for the rapid development of takeaway catering. The main responsibilities of platforms and online merchants are not in place, and issues such as food safety and the protection of the rights and interests of takeaway riders are increasingly prominent.

　　How to deal with these problems from the source? Zhejiang has strengthened the supervision of the platform economy with the help of digital means, and promoted the healthier and more standardized development of the online catering industry. Since 2017, Zhejiang has taken the lead in using the "big data capture and analysis system for online ordering monitoring and monitoring of Meituan takeaway, Ele.me and other online ordering platforms. The" Zhejiang takeaway online "launched this time connects all the functions of" Sunshine Kitchen "to Meituan takeaway and Ele.me two takeaway platforms. Consumers can watch the real scene of the merchant’s back kitchen through live broadcast, and the process of food cleaning, processing and production is clear at a glance.

　　"In the governance of online catering, consistent licenses are the bottom line, and food processing safety is the core." Jin Xiang, director of the Internet Supervision Branch of the Zhejiang Provincial Market Supervision Bureau, believes that the reason why "black-hearted" takeout has no fear is because the processing process of the back kitchen is opaque, and consumers cannot supervise it. If the "back kitchen" is no longer "operating in the dark", then consumers can "see clearly, order with confidence, and eat with peace of mind".

　　According to statistics, since the launch of "Zhejiang takeaway online", it has completed the verification of the main information of 293,000 merchants, connected to the sunshine kitchen super 90,000, and promoted the takeaway merchants to promise to use the "takeaway seal" 64,000, and the takeaway merchants promised to use the limited plastic packaging 55,000.

　　"Meituan takeaway will set up a’Sunshine Kitchen ‘special area at the golden booth on the APP homepage, and study preferential policies in terms of cooperation rates, marketing opportunities, traffic display, etc. for merchants with strong capabilities, excellent service, and implementation of bright kitchen and bright stove, and cooperate with supervision in an all-round way," said Ding Dong, Meituan’s chief food safety officer.

　　Riders’ rights are guaranteed

　　For a complete takeaway order, in addition to food processing and production, there is also a delivery link. The takeaway delivery is undertaken by the rider, with one end connected to the platform merchants and the other to the customers. The roles are different, but they pursue the same, that is, fast. For consumers, in the fast-paced work and life, ordering takeout is convenient and fast; for platform merchants, they need to sell more and make more profits, but they also need to be fast; for takeaway riders, they need to pull more and run faster to earn more.

　　"Although all three parties are seeking speed, the delivery riders are in a weak position in the entire chain, and the pressure and exposed problems will also be concentrated on them." Xia Xuemin, an adjunct researcher at the Institute of Public Policy of Zhejiang University, believes that delivery catering has the characteristics of a high degree of platform, strong mobility, and unclear labor relations, which in turn brings problems such as irregular employment and difficult protection of workers’ rights and interests. Under the assessment of the platform algorithm, some delivery staff have to race against time, which brings hidden dangers to traffic safety and their own safety.

　　Previously, the State Regulation for Market Regulation and other seven departments jointly issued opinions, putting forward all-round requirements for protecting the legitimate rights and interests of takeaway riders. In terms of protecting labor income, the platform is required to establish an income distribution mechanism that matches the work tasks and labor intensity, and ensure that the normal labor income of takeaway deliverymen is not lower than the local minimum wage standard. The "strictest algorithm" shall not be used as an assessment requirement, and the assessment factors such as order quantity, on-time rate, and online rate shall be reasonably determined through methods such as "algorithm winning", and the delivery time limit shall be appropriately relaxed.

　　To safeguard the rights and interests of takeaway brothers, we must let the algorithm have rules. Zhang Genming, director of the Zhejiang Provincial Market Supervision Bureau, said that in order to solve the problems of frequent riders speeding traffic violations caused by platform rules and algorithms, the market supervision department combined weather, road conditions, load and other factors to design a set of rider delivery time algorithms, set a reasonable delivery time interval for it, and guide the takeaway platform to optimize and correct the delivery time rules. In addition, the "Zhejiang takeaway online" platform has collected data from multiple departments, found out the file base of takeaway riders, and promoted all parties to fully protect the rights and interests of takeaway riders.

　　"Now, the platform rules are optimized, and there is no need to rush blindly, and many consumers also understand." A Meituan takeaway rider confessed to reporters that traffic violations such as retrograde traffic and running red lights have been greatly reduced recently, and labor intensity has also decreased compared with the past.

　　At present, the "Zhejiang takeaway online" platform has established 353,000 and 923 files of riders and agents respectively, checked the number of riders participating in insurance 235,600, handled 2,371 labor disputes, and fed back 16,700 traffic accident data on the platform.

　　Multi-party co-governance forms a joint force

　　"The focus of strengthening supervision is to promote the sustainable and healthy development of the takeaway industry, rather than restricting its development." Zhang Genming said that in the system design, Zhejiang pays attention to the legal and reasonable use of new technologies, prevents unfair competition, and assumes social responsibility and other hard requirements. At the same time, pay attention to balancing the interests of all parties, and strive to unify the rights, responsibilities and interests of all parties to avoid the phenomenon of "chaos and death".

　　At present, new business models of takeaway are emerging, and some merchants outsource the processing of food ingredients to middlemen such as shared kitchens for processing and production. "At the peak of lunch and dinner, the number of orders surges, which brings challenges to the food supply, and there may be hidden dangers in the production and distribution links." Shi Xiaoming, chairperson of the takeaway professional committee of the China Hotel Association, suggested that the standards and specifications of food procurement, processing, packaging and distribution should be improved, and the responsibilities of merchants and platforms who enter the shared kitchen to carry out food business activities should be defined.

　　In October last year, the China Cuisine Association and others issued the "Sealing Specifications for Catering Takeaway", which encourages takeaway merchants to seal meals by means of seals and buckles to ensure that food is not opened at will during the delivery process. The association also took the lead in organizing and formulating standards such as "Professional Competence Requirements for Catering Operators Based on Internet Tools", encouraging more takeaway companies to participate in the drafting of group standards, and creating a standard model of "understanding at a glance, following what you can do, and measuring with a ruler to the end".

　　Industry experts point out that ensuring the safety of takeaway catering requires the participation of all parties in society. Government departments should constantly innovate supervision methods, do a good job in the whole chain supervision of takeaway catering, fully protect the rights and interests of consumers, and guide the standardized development of the industry; industry associations should issue group standards in a timely manner to make the takeaway catering industry process rule-based; takeaway platforms must implement responsibilities such as qualification review and full-time management, and standardize the business activities of online merchants; catering enterprises should operate in good faith, abide by the law, and continuously improve service quality.

Beijing Central Broadcasting Network reported on September 17 that if revenue performance and conversion rate are the superstructure of a catering enterprise, then the catering supply chain is the foundation for the development of a catering enterprise.

In recent years, restaurant chain has become the mainstream trend of the development of the catering industry. Correspondingly, the catering supply chain enterprises have also undergone profound changes, and are changing from a single, traditional to a comprehensive and intelligent direction.

While a number of catering supply chain enterprises have risen rapidly, major catering enterprises have also begun to strengthen their supply chain construction and seek new development breakthroughs.

(Picture provided by the enterprise, issued by the Central Broadcasting Network)

JD.com Catering partners with Maxim to deeply empower the development of the catering supply chain

It is reported that on September 14, JD.com Catering and Maxim signed a strategic cooperation agreement. The relevant person in charge of Maxim said that this signing is a milestone for both parties.

As one of the largest catering groups, Maxim’s has been in the industry for 65 years. So far, it has expanded nearly 80 catering brands and operated more than 1,800 high-quality baking and catering stores in China and South East Asia. To support such a huge catering group, it needs a strong supply chain to back it up. To this end, Maxim is actively building its own supply chain system while also seeking a better third-party cooperation platform.

Meixin and JD.com Catering signed a strategic cooperation agreement (photo provided by the enterprise, issued by China Central Broadcasting Network)

In this cooperation with JD.com Catering, Meixin can rely on the JD.com Catering platform to create integrated supply chain solutions from food supply, warehousing and logistics to procurement digital operation management, and explore a better supply chain development model for the catering industry.

JD.com Catering, as the catering business of JD.com Retail Group, has been committed to providing customized services and one-stop supply chain solutions for large and medium-sized brand catering, social group meals, hotels, canteens of enterprises and institutions, and other channels.

The cooperation with Meixin is also of great significance for JD.com Catering to enhance its brand effect, and also serves as a model for its subsequent undertaking of more national chains.

One is a well-known catering group, and the other is the leading digital catering supply chain platform. Their combination will surely bring long-term positive development to the catering industry.

With so many supply chain platforms, why did Meixin choose JD.com Catering?

According to the "2021 China Catering Supply Chain Research Report", in recent years, both listed and non-listed companies have been actively financing their supply chain layout, improving operational efficiency and optimizing industrial processes.

For medium and large chain catering brands, with the increase of volume and influence, the requirements for raw materials are getting higher and higher. At this time, whoever has a strong supply chain is likely to be invincible. However, building a supply chain by yourself is not an easy task. In addition to requiring huge capital investment, how to get through the warehousing, logistics and other links of the supply chain is also a major problem.

Therefore, due to factors such as cost reduction and quality improvement, most medium and large chain restaurants will choose to cooperate with mature supply chain enterprises in order to focus more time and energy on enterprise operation management and Product Research & Development.

(Picture provided by the enterprise, issued by the Central Broadcasting Network)

The person in charge of Meixin said that the reason why Meixin chose to cooperate with JD.com Catering is that in addition to JD.com Catering’s high reputation and recognition in the catering industry, the most important point is that JD.com Catering can not only help Meixin solve operational pain points through the digital catering supply chain, but also meet its personalized needs and provide a one-stop supply chain solution in line with its development.

1. Logistics

Zhang Haizhen, head of Maxim’s supply chain in China, said, "Maxim’s 14 food and beverage brands in the Chinese mainland, with nearly 260 stores in 15 cities across the country, and nearly 5,000 SKUs in operation, such a business layout in the existing supply chain system is a very big challenge."

JD.com Catering can use its own advantages to meet the logistics needs of all Maxim’s supply chains in one stop, helping it optimize inventory management, reduce operating costs, and efficiently allocate internal resources.

Logistics and warehousing of JD.com catering (picture provided by the enterprise, issued by China Central Broadcasting Network)

It is understood that JD.com Catering and JD.com Group Cold Chain Logistics pioneered the "Catering Business Self-operated Cold Chain B2B Warehouse Distribution System", set up 7 warehouses in 7 regions, and passed the "BRCGSS & D Global Standard System Certification", covering 24 third-tier cities across the country, which can meet the requirements of JD.com Retail Group’s self-operated cold chain 2B business.

2. Raw materials

For large catering companies like Maxim’s, its multi-brand operation covers a wide range of catering categories, involving a wide variety of ingredients and seasonings of different origins and qualities. This leads to large differences in the procurement prices of raw materials in different regions, and the dispersion of origins has caused difficulties in integration. In addition, the long chain chain of the industrial chain requires multi-level sales, and there may be problems such as distribution loss and insufficient weight in the traditional procurement process, which virtually increases the production cost and operating cost of the enterprise.

In addition, it is impossible to accurately grasp the freshness of the ingredients and the stability of the supply.

YAKINIKULIKE first store in Chinese mainland (picture provided by the company, issued by CCTV)

With JD.com Catering, Meixin can provide the underlying basic capability guarantee for Meixin’s core procurement link to improve efficiency through JD.com Group’s million-level commodity pool and other underlying capabilities, and can further optimize user experience and build a precise reach system.

In addition, in terms of food safety traceability, JD.com Catering will record the important data of each link in the whole life cycle of food from raw material procurement to user’s table throughout the process. Through the Internet of Things and blockchain technology, a scientific and technological mutual trust mechanism is established to ensure the immutability and privacy protection of data, which can realize the whole process of traceability and escort the whole circulation process of goods.

3. Finance

The catering industry with heavy asset operation has never been an easy business to do. Expenditures such as raw materials, labor, rent and promotion and marketing are all pain points faced by catering people. In the past two years, due to the impact of the pandemic, many catering companies have generally faced pressure such as declining revenue and reduced gross profit. Some catering companies ultimately regretted exiting the market due to a break in cash flow.

As a full stack professional catering supply chain platform, JD.com Catering can provide customers with financial services for a variety of account period solutions, including credit purchase, account period management and other modules, which can meet the business needs of catering enterprises for unified payment of multiple stores, and provide customers with the convenient experience of "advanced goods, post-payment" to assist catering enterprises in solving problems such as financial constraints in the process of rapid growth of stores.

JD.com Catering’s powerful back-end (picture provided by the enterprise, sent by China Central Broadcasting Network)

Step 4 Retailability

The "2020 China Catering Brand Power White Paper" proposes that retailing is the "second curve" of catering brands. Many leading catering brands are involved in the retail field, and the future catering sales channels are no longer limited to offline catering stores; the combination of online and offline models, standardized and retail catering product sales is the general trend.

Under the trend, as a 65-year-old established catering group, Meixin needs to actively embrace the retail field, reshape the catering model with new retail thinking, and transform products or ingredients into retail forms to enter the market based on brand precipitation and own traffic. Through the blessing of online channels, users can achieve secondary value transformation and brand cross-channel extension, fully and directly reach a large number of consumers, and provide online sales channels with the opportunity to convert huge sales traffic. This is also the most important point of Meixin.

Next, through the collaboration with JD.com Catering, Maxim will gain more solutions in the areas of retailing and integrated marketing.

Digging deeper into the supply chain, JD.com Catering offers more possibilities for the development of catering enterprises

From the current situation of the development of chain catering, compared with foreign countries, the chain catering industry in our country is still in the preliminary stage, the concept of social division of labor of medium and large chain catering enterprises is weak, and large-scale professional catering supply chain service enterprises are very scarce.

It is precisely because of the huge prospects and market gaps in the catering supply chain market that JD.com Catering has taken the lead in entering the blue ocean market of the catering supply chain with its keen business sense.

As the most leading catering digital supply chain, JD.com Catering has been committed to helping catering enterprises achieve standardization and large-scale development, providing one-stop full-care supply chain solutions for national catering brands. In the list of catering enterprises served by JD.com Catering, you can see many well-known catering brands, such as Local Qi, Fengmao Grilled Skewers, Will Taiwuji, Xihe Catering, etc.

Local gas (picture provided by the enterprise, issued by China Central Broadcasting Network)

JD.com food and beverage industry upstream integration of all categories of high-quality supplier resources and origin rough processing capacity, sales finishing capacity, to achieve customer classification, product grading, and open up the food and beverage industry from origin to table full link. Standardization of non-standard products in the food and beverage industry, traceability of operating data, financial process compliance, and use of digital capabilities to solve industry pain points. Use JD.com Group’s financial and supply chain advantages to reduce costs and increase efficiency for the industry. Promote the retail development of food and beverage, and create economies of scale for industry customers.

In addition to serving chain catering brands, JD.com Catering is also expanding its business scope, such as scenic catering, hotel catering, self-operated catering stores, and group catering businesses.

The group meal catering business of JD.com Catering (picture provided by the enterprise, issued by China Central Broadcasting Network)

It is understood that currently JD.com Catering has reached in-depth cooperation with nearly 200 catering stores across the country, many of which are high-quality large enterprises at home and abroad. In terms of project cooperation, it has made great efforts to create excellent typical cases in many industries.

For example, in March 2021, JD.com Catering cooperated with well-known chain catering brands in the Beijing-Tianjin-Hebei region, and within half a year of cooperation, from preparation for operation, trial operation to formal operation to today’s in-depth cooperation, the monthly supply amount was nearly 10 million yuan, running through the one-stop full-trust supply chain operation model.

In terms of the group meal supply chain, JD.com Catering connects with many group meal operators such as Kuaikeli and Xinyouhao, and has opened up multiple links such as systems, platforms, and finance.

When it comes to future goals and plans, Ma Jun, head of JD.com Catering, said that in the future, JD.com Catering will join hands with more ecological partners to create a new model of targeted supply chain for different scenarios, and provide one-stop supply solutions to create greater value for the transformation and upgrading of catering enterprises.

(Note: The pictures in this article are all provided by the enterprise, author: Xiaoyun)

"hanging wire for pulse diagnosis" of satellites in orbit

■ Lu Binghong Zhang Mi Liberation Army Daily reporter Wang Lingshuo

On the eve of the Spring Festival this year, Xi ‘an Satellite TT&C Center successfully completed the health status assessment of 52 Beidou navigation satellites. Through the "physical examination" of the Beidou navigation satellites in orbit, the scientific and technical personnel ensure that the key technical indicators of these satellites meet the requirements of providing various services normally and continue to maintain good working conditions in orbit.

The reason for the "physical examination" of satellites is that satellites in the past days will sometimes have "minor ailments and pains" or even "incurable diseases", which will affect business applications and lead to the failure of the whole satellite. China’s space science and technology workers are deeply involved in the on-orbit diagnosis and maintenance technology of spacecraft to realize early detection, prevention, diagnosis and treatment of satellite faults.

Schematic diagram of injecting maintenance instructions on the ground to satellites in orbit

Satellites in orbit are so delicate.

When it comes to space flight, people often think of the rocket launch that attracts people’s attention and rises in flames. In fact, this is only the prelude to the space mission, and the work really begins when the satellite enters the scheduled orbit and is put into business application in space.

Satellites are the largest number of spacecraft launched by human beings, accounting for more than 90% of the total number of spacecraft launched, and have considerable uses in meteorological monitoring, communication and navigation, disaster prevention and mitigation and other fields. As a complex system composed of thousands of components, satellite has more and more functions and greater value with the continuous development of technology. The times of detection, diagnosis, calculation and treatment, control and disposal, and the telemetry parameters that need to be downloaded and monitored are also increasing. This puts forward higher requirements for the accuracy and stability of the ground control system. However, satellite technology is complex and dense, and it is in a complex space environment, so the probability of failure exists objectively and there are various types.

In 2018, shortly after the latest model of meteorological satellite GOES-17 in the United States was put into orbit, the cooling system failed, which made the imaging system of this satellite unable to provide satellite images in near infrared and infrared channels. Satellites can’t get infrared cloud pictures taken at night in time and effectively, and they become "blind" at night.

Coincidentally. In July, 2019, the European Galileo satellite navigation system lost all 24 satellites due to the timing error of the precise timing facilities located in Italy, and the whole system was once paralyzed. It was not until a week later that the system fully resumed service.

At the same time, satellites operate in a vacuum, weightlessness, ultra-low temperature, strong radiation and full of unknown factors for a long time, and space junk and solar activities will bring trouble and even fatal damage to satellites. Therefore, it is inevitable that there will be some technical problems during the life of the satellite.

What’s more, the cost of modern satellites is high, and with the launch cost, the cost of a satellite is often calculated in hundreds of millions of yuan. If the technical failure of the satellite is not eliminated in time or cannot be eliminated, huge economic losses will be inevitable. Therefore, once the running satellite fails, all countries will spare no effort to rescue the satellite and minimize the loss.

Troubleshooting with "Hanging Wire Pulse Diagnosis"

When there is a problem with the machine on the ground, people can locate and eliminate the fault through various methods. For satellites in orbit, it is the only way for technicians to master the attitude and working state of satellites by means of electromagnetic wave transmission.

The so-called satellite fault diagnosis and maintenance means that when the satellite fails, in order to avoid the paralysis or functional failure of the whole system caused by the failure of some components, the state detection, fault diagnosis, health assessment and other work are carried out quickly through telemetry data, the current state and future "illness" trend of the satellite are analyzed, the satellite fault level is defined, the fault location and cause are determined, and the treatment is carried out in time. This is just like the plot of "hanging the wire to feel the pulse" in Chinese classical novels and traditional operas. With this core technology, ground measurement and control personnel can detect tiny faults hidden inside the satellite as soon as possible, and after fault identification and fault isolation, take corresponding maintenance support or fault degradation treatment, so as to avoid catastrophic failures of the satellite and ensure the safe operation of the satellite.

The diagnosis and maintenance technology of spacecraft is developed with the realistic requirements of spacecraft mission expansion, control accuracy improvement and working life extension. The traditional space powers, represented by the United States and Russia, started earlier and have done a lot of research and practice in this field.

In the 1960s, with mankind gradually entering the space age, the spacecraft diagnosis and maintenance technology was also launched. Due to the limitation of technical conditions, component quality and design level at that time, people can only rely on simple instruments to monitor some key parameters of the satellite with single signal threshold state in this period to judge whether there is a fault. This method provides a certain guarantee for the on-orbit operation of early human spacecraft. At this stage, the average life of spacecraft is generally short. In manned space mission, the safety guarantee system of the system is composed of state monitoring, ground expert consultation and astronauts’ direct participation, and the autonomy, real-time and reliability of the spacecraft fault detection system are also poor.

Since 1970s, with the development of technology and the improvement of component quality, design level and process level, the diagnosis and maintenance technology based on hardware redundancy has been widely used in the field of spacecraft. The diagnosis method has also developed from simple threshold judgment to making full use of various dynamic testing technologies, monitoring technologies and information processing technologies, which has greatly extended the average life of spacecraft.

During the Apollo mission to the moon, the United States first established a flight anomaly analysis and evaluation system. The system includes flight fault monitoring and processing, flight state evaluation, flight data standardization, fault ground simulation, etc., and all emergency life-saving parameters are equipped with triple repetitive sensors and dominant voting logic circuits, which obviously enhances the autonomy and reliability of the spacecraft fault detection system.

In the 1980s, artificial intelligence research flourished, and knowledge-based diagnosis and maintenance technology, especially expert system technology, began to be widely used in the aerospace field. Among them, several intelligent fault diagnosis technologies based on expert system and testability model data-driven are the most representative. At the same time, the appearance of highly complex and reusable spacecraft such as the space shuttle makes the fault diagnosis and maintenance system not only have the distribution of modular functions, but also have the integrity of coordination. With the gradual construction and on-orbit operation of the International Space Station, its fault diagnosis and maintenance system has further greater variability, better adaptability and stronger robustness, and gradually develops in the direction of self-management, so that the failed space station can continue to complete its scheduled tasks without affecting its performance.

"Star Shepherd" guards "China Star"

The management level of long-term in-orbit satellites largely determines the realization of satellite efficiency. Since China launched the first artificial earth satellite in 1970s, the spacecraft on-orbit management and control technology has made great progress through the unremitting efforts of several generations of scientific and technological personnel.

As early as 2007, relying on Xi ‘an Satellite Monitoring and Control Center, China began to build a national-level "satellite general hospital"-spacecraft on-orbit diagnosis and maintenance center, and immediately carried out major scientific research projects in the field of spacecraft on-orbit fault diagnosis and maintenance.

With the increasing number of satellites in orbit, China urgently needs to further improve its on-orbit diagnosis and maintenance capabilities. In 2014, Xi ‘an Satellite TT&C Center established China’s first on-orbit fault diagnosis and maintenance laboratory. Through the research on early identification and location technology, on-orbit fault simulation and maintenance technology, on-orbit reliability growth and life extension technology, the independent innovation ability of on-orbit fault diagnosis and maintenance of spacecraft in China was further improved, which promoted the sustainable development of China’s aerospace engineering and became a solid foundation support for the continuous increase of the number of on-orbit satellites in China.

By collecting and sorting out thousands of fault cases at home and abroad and summarizing nearly one million pieces of diagnosis knowledge, the center independently developed an expert system for spacecraft fault diagnosis, which effectively solved the problems of late discovery, slow analysis and difficult positioning of spacecraft micro-faults.

In addition, starting from Beidou satellite, they independently developed a satellite health assessment system, established a relatively complete three-level health assessment index system of "sub-system, key single machine and key performance", put forward a meta-knowledge construction method of health assessment for single satellite in orbit, and built a detailed "physical examination file" for each satellite. The evaluation conclusions of the satellite system put forward targeted countermeasures and suggestions for the follow-up satellite on-orbit management from the aspects of key components’ operation state, abnormal prevention and response, space environment change and load efficiency guarantee, which effectively ensured the safe and stable operation of Beidou system in orbit.

As the largest long-term management center of spacecraft in China, Xi ‘an Satellite TT&C Center has been managing China’s satellites in orbit for a long time, taking on the on-orbit management tasks such as daily telemetry monitoring, orbit control, fault diagnosis and maintenance, and it is a veritable "big housekeeper" of China satellites. Although the "China Stars" are in space, they are not alone, but are always under the care of the "Star Shepherd".

In the future, Xi ‘an Satellite TT&C Center will also deeply and extensively apply artificial intelligence technology, comprehensively improve the level of diagnostic and maintenance capabilities, and lay a solid technical foundation for the on-orbit management of the "giant constellation" in the future.