preface

China’s Beidou Navigation satellite System has been fully completed, with the launch of the last networked satellite of the Beidou-3 at 9:43 am on June 23, 2020 from the Xichang Satellite Launch Center. From 2000 to 2020, when the first satellite of the Beidou-1 was launched to the last satellite of the Beidou-3 was put into orbit, China finally has its own global navigation satellite system, and we will get rid of our dependence on GPS.

At present, the Beidou system has been widely used in electricity, finance, communications, transportation, agriculture, surveying and mapping, disaster relief and other aspects of production and life, with the help of beidou, China’s national defense force will be more powerful. (Note: Beidou Navigation Satellite System (BDS), GPS of the United States, GLONASS of Russia and GALILEO of the European Union are the confirmed suppliers of the United Nations Satellite Navigation Committee.)

Interface introduction and effect preview

The 2D/3D engine independently developed by HT for Web was used to make the satellite launch demo by setting up scenes, matching data panel and animation drive. The complete interface display is shown in the figure:

It consists of a scene in the center and data panels on both sides, which support normal rotation, translation and zooming. The data panel simulation shows some information about the rocket and satellite.

System analysis

Rocket launch and satellite orbit flight animation

The five animations of a rocket launch are as follows:

  • Complete charge inspection, stabilizer ignition and launch deployment

  • The boosters fire and accelerate

  • The boosters detach, the two-stage rocket fires, releasing thrust

  • The fairing was removed and the two-stage rocket separated

  • 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 third process of flight is as follows:

Animation control button

Play: Starts to Play the animation

Pause: Pauses an animation

Resume: Continue the animation

Replay: Replays the animation

The amount of fuel remaining

Simulation of rocket and propellant fuel storage information.

Process events

The list records different stages of satellite lift-off. Click [Show] to display the scene interface at that time.

Realize the value of

The Beidou Navigation satellite System is an independent satellite navigation system built and operated by China with the needs of national security and economic and social development in mind. It is an important national space infrastructure providing all-weather, round-the-clock and high-precision positioning, navigation and timing services to global users. Satellite navigation system is a global public resource, multi – system compatibility and interoperability has become a developing trend. China has always adhered to and implemented the development concept of “China’s BDS, the world’s BDS” to serve the development of the Belt and Road Initiative and actively promote international cooperation on the BDS. We will work with other satellite navigation systems and other countries, regions and international organizations to promote the development of global satellite navigation, so that the BDS can better serve the world and benefit mankind.

As the only means of delivery of beidou satellite, the long march series rocket can too, no. 3 in the past 20 years has fired up to 44, he is loaded with beidou satellite series, bearing the weight of the hope and future of the motherland navigation system, rapid headed to the vast universe, success will be a satellite into orbit, and mature to the birth of the beidou satellite navigation system has made a great contribution.

conclusion

Scientists lined up in space to make the Beidou system a reality. In the future, the BDS will launch several satellites to further improve global basic navigation and short message communication services, and realize global short message communication, satellite-based enhancement, international search and rescue, and precision single point positioning.

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