source:truck tracking webfleet solutions release time:2022-09-26 Hits: Popular:realtime gps tracker online
American GPS: It was designed and developed by the U.S. Department of Defense in the early 1970s and completed in 1993. In 1994, the United States announced that it would provide the world with the right to use GPS for free within 10 years, but the United States only provides low-precision satellite signals to foreign countries. It is believed that the system has a "back door" set up by the United States, in the event of a war, the United States can shut down information services to a certain area. EU "Galileo": In 1999, Europe proposed a plan to launch 30 satellites to form the "Galileo" satellite positioning system. The program was officially launched in 2009. Russian "GLONASS": Not yet deployed. Beginning in the 1970s, at least 18 satellites were required to ensure coverage across Russia; for global positioning services, 24 satellites were required. China BeiDou Navigation Satellite System (BeiDou (COMPASS) Navigation Satellite System): It is a global satellite navigation system independently developed and operated by China. The goal of system construction is to build an independent, open and compatible, technologically advanced, stable and reliable Beidou satellite navigation system covering the world, to promote the formation of the satellite navigation industry chain, to form a complete national satellite navigation application industry support, promotion and guarantee system, and to promote satellite navigation. Widely used in various industries of the national economy and society. Beidou satellite navigation system consists of three parts: space segment, ground segment and user segment. The space segment includes 5 geostationary orbit satellites and 30 non-geostationary orbit satellites, and the ground segment includes several ground stations such as the main control station, injection station and monitoring station. , the user segment includes Beidou user terminals and terminals compatible with other satellite navigation systems. In 2003, my country's Beidou No. 1 was completed and put into operation. Unlike GPS, the "Beidou" command plane and terminal can communicate in two directions. After the Sichuan earthquake on May 12 last year, the Beijing Armed Police Command Center and the Sichuan Armed Police Force used the "Beidou" to conduct hundreds of exchanges. The Beidou-2 series of satellites will enter the peak period of networking this year, and it is expected to form a global coverage system consisting of more than 30 satellites in 2015. At present, at 0:12 on January 17, Beijing time, my country successfully launched the third "Beidou" navigation satellite into the predetermined orbit with the "Long March 3C" carrier rocket at the Xichang Satellite Launch Center. At 23:53 on the evening of June 2, 2010, China successfully launched the fourth Beidou navigation satellite into the predetermined orbit of space with the "Long March 3C" carrier rocket at the Xichang Satellite Launch Center.
Read recommendations:
TK100N- Multi functional GPS Tracker
The reasons and solutions for the slow reaction of the GPS screen.realtime gps tracker online Soluti
Last article:Looking at the Development of GPS Navigation Products from the Demand of Electronic Map Products
Next article:How to choose GPS
Related Information
fleet gps tracking manufacturer
2023-04-23fleet gps tracking wholesale
2023-04-23gps vehicle tracker company
2023-04-23GPS Tracker Solution
2023-04-11pet gps tracker cat wholesale
2023-03-16rastreadores gps
2023-03-16SecumorePlus
2023-03-16Car gps tracking price
2023-04-11Pet GPS Tracker manufacture
2023-03-16Cantrack TK100
2023-04-11VSL100 GPS Speed Limiter, Speed Governor
2022-06-19TK08AL- RFID Car GPS Tracker
2023-10-07G900LM-4G Car GPS Tracker
2025-03-25P60L Personal gps tracker
2022-06-21TK100B- Accurate Pro version GT06/TK100
2023-10-06Application of GPS
2022-09-24WIFI positioning of gps tracker is not necessarily the most accurate
2022-07-15gps tracker is very power hungry?
2022-09-19GPS installation points
2022-10-08What is the working principle of the valve GPS positioner
2023-03-06Gps speed limiter.The positioning principle of automotive GPS global satellite positioning system
2023-11-17GPS Application Solution
2022-10-09Polarization Design of GPS.fleet gps tracking
2022-11-16The GPS navigation function is diverse. Let's take a closer look at the GPS navigation voice prompt
2023-04-14GPS satellite on test stand.GPS Tracker
2023-09-04GPS system composition
2023-02-07Development Trend of Automotive GPS Positioning System
2022-08-26Differences between GPS monitoring platform BS and CS
2022-12-14GPS monitoring system develops rapidly
2022-12-07China Beidou Navigation System?
2022-11-17