Besides positioning, what other unique functions does China Beidou have?

Beidou satellite navigation system has been everywhere, from map navigation to take-out, to garage parking, everywhere. More than 372 million mobile phones around the world use Beidou navigation system. The development of Beidou system is a process of continuous innovation and development. The main achievement of Beidou-1 is that the two satellites have achieved a wide range of high-precision positioning and timing services, covering China and its surrounding areas. According to the principle of GPS positioning, it needs 12 satellites, and the two-way timing accuracy is 10 ns, leading the world. Positioning and reporting can be done simultaneously in the same channel. Users know where I am, and the headquarters knows where we are. Positioning report is the biggest difference between Beidou and GPS.

Beidou is the world's first navigation system with three-frequency complete service capabilities. Beidou is the world's first dual-mode integrated system for continuous navigation and positioning reports. Dual-mode user computers have brought great social and economic benefits. The main achievement is to independently establish the global benchmark of time and space, because only the global system is the representative of the global system, and those regional systems cannot establish the time benchmark, so Beidou system does not. The Big Dipper actually sailed from the first stage to the fourth stage, so its achievements spanned several generations.

After the completion of Beidou in China, the navigation accuracy of L frequency meter level has basically reached. In 2030 or 2035, the space system with deep integration of navigation, communication and remote sensing will come from China. China's high-speed network will adopt 5g terrestrial network to realize the connection of objects and contents in the global sky. The 6th generation mobile communication, China's 6G road is different from that of western countries. China will build the ground system first, and then the space system. China's space system is based on the Beidou space-time benchmark, so China's 5G will be successful, and China's 6G will also be successful.

There will be Beidou Global Internet of Things in the future. Network is the connection between people, and people are very tolerant. In order to realize the interconnection of global dynamic things, it is necessary to maintain the global Internet of Things on the basis of time and space. The world-class dynamic decimeter Beidou satellite navigation system has been realized, and the space-based Internet of Things with unified time and space reference has been provided, and the global system of space-based radio has gained knowledge of the earth. Beidou Future Space-based Internet of Things module realizes the interconnection of space objects and space, and the networking of space and earth content, and its task goes beyond the research of earth navigation methods. Its significance lies in giving full play to the basic value of Beidou time-space benchmark, breaking the solidified state of independent construction industries of navigation, communication and remote sensing in the world, and providing public data links for most industries including remote sensing. Beidou multi-service satellite radio system is an important spatial information infrastructure in China. Beidou-3' s comprehensive innovation in basic navigation, satellite-based enhancement, precise single-point positioning, information and communication, international search and rescue and other services is a good start for future development.