At 9:43 on June 23, 2020, with the successful launch of the last networking satellite of beidou-3 at Xichang Satellite Launch Center, China’s Beidou satellite navigation system has been completedCompleted in an all-round way. From 2000 to 2020, from the launch of the first satellite of Beidou-1 to the launch of the last satellite of beidou-3, China will finally have its own global satellite navigation system, and we will get rid of the dependence on GPS.
Today, Beidou system has been widely used in power, finance, communication, transportation, agriculture, surveying and mapping, disaster relief and other aspects of production and life. With the help of Beidou, China’s national defense will be more powerful. (Note: BDS, GPS, GLONASS and Galileo are the suppliers recognized by the United Nations satellite navigation Committee.)
Interface introduction and effect preview
useHT for WebSelf developed2D/3DAfter setting up the scene, matching the data panel and animation driving, the satellite launch demo is produced, as shown in the figure
It consists of a central scene and data panels on both sides. The scene supports conventional rotation, translation and view zooming. The data panel simulation shows some relevant information of rockets and satellites.
Animation of rocket launch and satellite orbit flight
The five animation processes of rocket launch are as follows:
- Complete charge check, stabilizer ignition and launch deployment
- Booster ignition, acceleration
- Booster separation, two stage rocket ignition, release thrust
- The fairing was stripped off and the secondary rocket was detached
- Release the satellite into orbit
The five time nodes of the time axis correspond to the above five processes respectively. By clicking the time node, the corresponding process animation can be played separately. The following is the third flight process:
Play: start playing animation
Pause: pause animation
Resume: continue animation
Replay: replays the animation
Expression of fuel surplus
Simulation of rocket and thruster fuel storage information.
The list records the different stages of the satellite launch process. Click [show] to display the scene interface at that time.
Beidou satellite navigation system is a satellite navigation system built and operated independently by China to meet the needs of national security and economic and social development. It is an important national space infrastructure to provide all-weather, all day, high-precision positioning, navigation and timing services for global users. Satellite navigation system is a global public resource, multi system compatibility and interoperability has become the development trend. China China has always adhered one’s own to one belt, one road, the other is the development of the “Beidou and the Beidou”, and actively promoted the international cooperation of the Beidou system. Join hands with other satellite navigation systems, and work with various countries, regions and international organizations to jointly promote the development of global satellite navigation, so that the Beidou system can better serve the world and benefit mankind.
As the only carrier of Beidou satellite, the long March-3 series rocket has also made great contributions. In the past 20 years, it has launched up to 44 times. It carries the Beidou series satellites, carries the hope and future of China’s navigation system, and flies to the vast universe. It has successfully put the satellites into the predetermined orbit, making great contributions to the birth and maturity of Beidou satellite navigation system.
The scientists arranged the star array in space, and finally turned the Beidou system from an idea into a reality. In the future, the Beidou system will launch multiple satellites to further improve the global basic navigation and short message communication service capabilities, and realize global short message communication, satellite based enhancement, international search and rescue, precise point positioning and other service capabilities.
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