source:truck tracking webfleet solutions release time:2022-12-29 Hits: Popular:realtime gps tracker online
????
????First of all, the GPS system is a passive system for our users, that is, the user's receiver is only responsible for receiving, decoding and computing, and will not return data. So as long as the signal covers the place, there can be countless users using the GPS system, which is similar to the principle of our radio station.
????The standard configuration of GPS satellites is 24 satellites, but at present, the number of satellites in overtime service plus new satellites has actually exceeded the configuration of 24 satellites, and their operation orbits have been adjusted accordingly. The operation orbits of GPS satellites are distributed in 6 orbits, and the standard number of satellites in each orbit is 4. The time of orbit operation is approximately 12 hours (half a star day), which ensures that effective and stable navigation services can be provided in most places
????Block I satellite is the earliest satellite of the GPS system. The purpose is to verify the feasibility of the system design. Therefore, only 11 satellites were manufactured and launched between 1978 and 1985. However, because the satellite can only store 3.5 days of ephemeris, it needs to frequently contact the ground to upload new data. If there is no ground management, the satellite will change its attitude in a short time, which will affect the actual navigation and positioning requirements. Two rubidium/cesium atomic clocks are carried on the satellite. Although the design life is about 5 years, many satellites have worked more than twice as hard, leaving precious data for future satellite design and fault analysis.
????The Block II satellite is a second generation satellite after learning from the previous generation of satellites and making improvements. A total of 9 satellites were launched in 1989. The built-in storage of the satellite has been increased to 14 days of ephemeris, and independent momentum control has been achieved. This can reduce the frequent contact with ground control, and multiple rubidium/cesium atomic clocks are carried inside. The average design life is 6 years, but the actual working time of the satellite is about 12 years on average. This is also the initial satellite product of GPS system.
????Later, Block IIA satellite was added, which was very similar to the previous generation satellite, and enhanced some functions of the system. For example, the autonomous operation time was expanded to 180 days, and the satellite could work continuously for 6 months without contact with the ground. A total of 19 were produced.
Read recommendations:
YG119- Hunting Dog GPS tracker
Gps speed limiter.C/S version client vehicle management and scheduling system
Last article锛?GPS navigation satellite has a high-precision atomic clock for time service
Next article锛?GPS application field
Related Information
GPS Trackers Factory
2023-04-11car gps tracker maker
2023-04-23mini gps tracker
2023-04-11GPS Tracking price
2023-04-11Dog gps tracker Manufacturing
2023-04-23best gps tracker
2023-04-11personal gps tracker
2023-04-11mini gps tracker sales
2023-04-23gps vehicle tracker manufacture
2023-04-11simple gps tracking wholesale
2023-04-23YG119- Hunting Dog GPS tracker
2023-10-07G06L
2022-06-21NB20 -4G Bluetooth Smart Pet Tracker
2022-06-21G500L -4G OBD GPS Tracker
2022-09-06G183 serials -JOBD GPS Tracker
2022-09-06Application of GPS in Car Tracker
2022-09-26There are three parts to the GPS plan
2022-08-12What are the types of driving recorders?GPS Tracker for vehicles Manufacturing
2023-04-14GPS Beidou satellite navigation system
2022-08-11Requirements for GPS logistics tracking and monitoring
2023-02-02Whether GPS positioning is GPS navigation.obd-II port gps tracker manufacture
2023-05-09The application of the GPS positioning system in the breeding industry
2023-02-23What should I do if I encounter an offline alarm in the car GPS positioner?realtime tracking device
2023-03-24What are the precautions for using the Beidou car GPS?plug & play Obd gps tracker Production
2023-04-14What should I do if the position of the car's GPS positioning system is incorrect?real-time gps trac
2023-09-19Considerations for choosing a gps tracker
2022-09-13Mobile GPS.plug & play Obd gps tracker wholesale
2023-05-20The difference between GPS positioning and GPS navigation tools.plug & play Obd gps tracker supp
2023-05-09Civil GPS positioning accuracy will reach 1 meter error
2023-02-22GPS receiving antenna
2022-09-27