Super hard core! 100% localization of Beidou's core components! Has served 137 countries around the world! How was born →
After a month of in-orbit testing, Beidou’s last satellite has all passed the test, and construction is about to start normally, and the global network will be officially launched, so that my country has a satellite navigation system that covers the world and is fully autonomous and controllable. In fact, from mobile navigation to fishing boat positioning, Beidou has quietly existed in our production and life. With the completion of the global deployment of Beidou satellites, what new applications will it launch?
After the global network, Beidou has higher precision and stronger performance.
Attract overseas users to come!
Beijing Capital International Airport
On July 13, Capital International Airport will begin a long-awaited flight test. This test is to install the Beidou positioning and tracking equipment on the aircraft, and then connect the Beidou satellite to simulate whether electromagnetic interference will occur between the aircraft and the Beidou equipment if the Beidou is used for positioning during the flight of the aircraft.
Install testing equipment
In less than 40 seconds, the testing equipment showed that twelve Beidou satellites had been searched, and the test officially began.
In the cockpit of the aircraft, the crew is constantly adjusting the frequency in accordance with the test requirements. After testing more than 60 frequencies for six major items, the Beidou tracking and monitoring terminal and other airborne electronic equipment can operate normally at the same time.
Test site
Since most of my country's civil aviation aircraft come from European and American countries, the use of Beidou positioning and tracking equipment in China's civil aviation field will have many technical incompatibility. Through the efforts of scientific researchers, these problems are slowly being solved. The success of the test means that the capabilities of the Beidou application industry have reached a big step. By the end of this year, they will complete a demonstration project for the Civil Aviation Administration to refit 20 Air China aircraft.
The Civil Aviation Administration of China issued a document stating that by the end of 2023, all civil aviation transport aircraft will have Beidou-based positioning and tracking capabilities to achieve autonomous and controllable flight global tracking and the development of Beidou positioning and tracking equipment; by 2035, it will be updated. Further realize that China's civil aviation transport aircraft use Beidou for autonomous navigation.
Not only must the new functions of Beidou navigation be used on the aircraft, but the successful Beidou global satellite navigation system has many new functions to be developed. On the large screen of the Resource Information Research Institute of the Chinese Academy of Forestry, the use of the Beidou satellite navigation system in the three demonstration areas of Guangxi, Xinjiang and Hubei was displayed in real time. The Beidou navigation system also has a short message function. While the navigation satellite transmits navigation signals to the ground, it can conduct two-way short message communication with the ground. The management personnel of the Academy of Forestry can grasp the information reported by various places in real time.
What made Liu Pengju even more happy was that after the Beidou Global Navigation System was successfully networked, it could also provide more accurate location services in terms of forest area estimation, timber volume estimation, forest patrol, forest fire prevention, and determination of regional boundaries.
System display
With the completion of the Beidou global navigation system, Beidou is being accepted by users all over the world at a rapid pace. The Ministry of Fisheries of Myanmar purchased 1,000 taipei bucket ship terminal equipment in 2019. In addition to basic navigation functions, they are most satisfied with the location information and trajectory services of fishing vessels. At present, they are looking forward to Beidou's short message service.
video conference
The short message function is the exclusive secret of the Beidou application terminal. When there are no base stations and mobile phone signals in China and the surrounding waters, short messages can realize real-time interaction between fishing boats and fishing boats, between fishing boats and the command center, within 1,000 Chinese characters. At present, more than 70,000 fishing vessels and law enforcement vessels in my country are all equipped with Beidou application terminals.
Since June, with the successful launch of the last satellite of the Beidou navigation system, Sun Yong, who is in charge of international business, and his colleagues have become increasingly busy, with more and more inquiries from customers and more specific requirements.
Sun Yong, Marketing Manager, Eurasian Region, International Business Department, Aerospace Star Technology Co., Ltd.
Independent and controllable world wide,
How was the most powerful brain of Beidou born?
According to statistics, 137 countries around the world have signed cooperation agreements with Beidou satellite navigation systems. With the success of global networking, the future international application space of Beidou satellite navigation system will continue to expand. The Beidou satellite navigation system is a major public service infrastructure provided by China to the world. The reason why it can continue to iterate and upgrade and diversify its applications is that the Chinese developers have firmly grasped the core components and key technologies in their own hands. . So how did the 100% domestically produced Beidou satellite navigation system come out?
502 Institute of the 5th Academy of Aerospace Science and Technology Group
In the 502 laboratory of the Fifth Academy of Aerospace Science and Technology Corporation, the reporter of "Economic Half an Hour" met the first batch of researcher Gao Xing who participated in the development of Beidou satellites. The old man Gao Xing, who has entered his old age, is holding the solar windsurfing drive mechanism SADA.
SADA
SADA is like a shoulder joint on the human body, which can drive the solar panel to rotate in the direction of the sun, so as to continuously obtain energy and transfer the energy to the satellite. SADA seems inconspicuous on the entire satellite, but it is hailed as the "satellite lifeline."
Gao Xing
However, at the initial stage of development of Beidou-1, my country's technical reserves are still very incomplete, and the driving structure of solar panels can only rely on foreign imports. In order to firmly hold the "lifeline" in his own hands. Gao Xing led the team to kick off the localization.
In the 1990s, on the one hand, foreign technology was blocked, and on the other, the products and technology of domestic component manufacturers were not yet mature. When Gaoxing explored and developed the first domestically-made long-life, high-orbit solar panel drive mechanism, the first prototype product However, it was found that the temperature difference between the rotating part and the fixed part of the drive mechanism was nearly 60 degrees Celsius. Gao Xing has no idea whether the product can withstand the test of such a large temperature difference.
Gao Xing
Gao Xing's desk still contains manuscripts from that year. The experimental equipment is completely hand-painted, and there are probably hundreds of parts.
Manuscript of the year
In order to verify whether the products designed and produced by itself can withstand the temperature difference of 60 degrees Celsius, Gaoxing set out to design its own experimental equipment and launched the first domestic temperature gradient experiment. This test lasted three full days and nights. After repeated experiments, they finally succeeded.
Gao Xing
Nowadays, there are four series of domestic solar windsurfing drive mechanism, more than 20 kinds of products, and more than 300 domestic products provide services in space. In more than 30 years, from Beidou-1 to Beidou-3, 55 satellites have orbited the world. It is inseparable from pioneers like Gaoxing, and there are more young faces.
Solar sailboard driving mechanism
The ability of the Beidou-3 satellite to accurately determine its orbit, survive autonomously, and control autonomously is due to its clever brain. The Spaceborne Computer and Electronic Product Development Center of the 502 Institute of the Fifth Academy of Aerospace Science and Technology Group is where the "most powerful brain" was born.
On-board computer and electronic product development center of the 502 Institute
Product chief engineer Hua Gengxin told reporters that if satellites are compared to human bodies, most satellites in my country used to have two brains, one of which is in charge of thinking, vision, and limb movement, and the other is responsible for physiological regulation of the satellite and communication with the outside world. And Beidou-3's brand-new "integrated electronic system" can achieve "one brain with dual purposes", and one system can achieve the functions of the past two satellites' "brains". It assumes the functions of control and data management.
Beidou satellite's "most powerful brain"
The new "Most Powerful Brain" is only one-sixth the size of the original, but it is more powerful than the original. Such a breakthrough is unprecedented, and the key is that they have developed a quad-core chip with pure Chinese ancestry through two years of torment, and only then can they creatively distribute the original more than 20 computers and thousands of pieces of information to On four computers. The powerful quad-core chips were rare in the world at that time.
Processor board with quad-core chip
This seemingly thin and light chip not only integrates millions of gates, but also condenses the efforts of China Update and the team. From the time the Beidou-1 was developed, it had to rely on imported core components, and now the chips and core components are completely localized. Today, Chinese scientific researchers are taking confident and determined steps to continue to explore more mysteries of distant space.
Huaxin
Half-hour observation: the tip crosses the Dreaming Galaxy
After 30 years of arranging stars, from Beidou No. 1 to Beidou No. 3, the core components have achieved percent localization. For this, researchers have gone through countless turns and survivors, using their own wisdom. , Self-reliance and self-transcendence, the Beidou satellite navigation system will be fully completed.
The total output value of the global satellite navigation system in 2019 is 170 billion U.S. dollars, and it is expected to grow to 370 billion U.S. dollars in ten years. In the future, there are still great business opportunities to be developed in terms of unmanned driving, drones, and smart city construction. . In the future, Beidou will be open to the world and will become a part of the lives of more than 7 billion people.