What achievements has China's "Beidou" achieved in the past five years?

“How does the plane know where it is in the air? This is because the VOR/DME station on the ground provides navigation signals; how does the plane accurately land on the runway at the airport? This is the role of the airport blind landing system. Provide guidance." The specific application of Beidou satellite navigation was introduced in detail on the flight verification system simulation screen in the "Communications and Navigation" special area of ??the large-scale achievement exhibition "Five Years of Hard Work".

In fact, these flight facilities will also have "health" problems like people, resulting in the inability to safely guide the aircraft to fly. Therefore, civil aviation agencies will dispatch aircraft equipped with professional instruments to conduct "physical inspections" of facilities on a regular basis. This is commonly referred to as the flight verification of the CFIS flight verification system based on Beidou satellite navigation. This system is an equipment independently developed by my country to calibrate, monitor and evaluate key infrastructure such as aviation communications, navigation and surveillance. It is also another fruitful achievement of my country's civil aviation in adhering to the path of independent innovation with Chinese characteristics.

"Pave the road to smooth information flow", this slogan is quite eye-catching in the middle of the "Communication Navigation" special area of ??the network technology characteristic experience exhibition area. In the exhibition area, visitors can see the Beidou satellite navigation system independently constructed and operated by my country, and experience the simulated car driving and flight verification process under Beidou's high-precision navigation.

In the past five years, the technical capabilities, positioning accuracy, and application level of my country's Beidou system have all developed rapidly. It is understood that this system is installed on a dedicated calibration aircraft, which mainly includes equipment cabinets, operating platforms and calibration antennas. Based on the high-precision spatio-temporal information provided by Beidou satellite navigation and other systems, it strictly checks key aspects such as aviation communications, navigation and monitoring. The health of the infrastructure has become the main equipment for my country's civil aviation flight inspection, providing daily guarantee for the safe operation of all civil aviation airports in the mainland, Hong Kong and Macau.

“The era of high-precision space-time services has arrived.” According to the video display project on the Beidou Sandbox, the Beidou Satellite Navigation System is a satellite navigation system independently constructed and operated independently by China, providing all-weather services to users around the world. , an important national space infrastructure that provides high-precision positioning, navigation and timing services. Through the construction of foundation-enhanced systems, the positioning accuracy can reach decimeter to centimeter levels. Related products have been used in transportation, precision agriculture, communications, electric power, finance, security emergency and other fields.

“China’s Beidou, the world’s Beidou”. With the completion of the global system deployment, Beidou will gradually move from serving my country to serving the world. "This flight verification system has been applied in all airports in my country." Zhang Jun, the leader of the flight verification system project and an academician of the Chinese Academy of Engineering, said in an interview with the media that the globalization process of the Beidou system continues to expand, and our flight verification The system will go abroad and spread the footprint of flight verification all over the world.