source:truck tracking webfleet solutions release time:2023-05-06 Hits: Popular:realtime gps tracker online
1. Cover
Beidou positioning system is a regional navigation system covering China. The coverage range passes about 70 ° 140 ° east, and 5 ° 55 ° north latitude. GPS is a global all -weather positioning system. It can ensure that 6-9 satellites can be observed at any place and time on the earth (in fact, at most 11).
2. Number of satellites and track characteristics
The Beidou positioning system is about 60 ° of setting two Earth synchronous satellite satellites on the earth equatorial plane. GPS is set up 24 satellites on the 6 rail planes. The orbital equatorial angle is 55 °, and the equatorial angle of the orbit surface is 60 °. The satellite is aimed at the same track, 11 hours and 58 minutes around the earth.
3. Positioning principle
Beidou positioning system is a active two -way ranging two -dimensional navigation. The ground center control system is solved for the user's three -dimensional positioning data. The GPS positioning system is a passive pseudo -code unilateral ranging three -dimensional navigation. User device independently solve its own three -dimensional positioning data. The working principle of "Beidou" brings two aspects of the problem. One is that the user positioning loses the hiddenness of radio while positioning. This is quite unfavorable in military. On the other hand, because the equipment must include the transmitter, it is The price and power consumption are in an unfavorable position.
4. Positioning accuracy
The three -dimensional positioning accuracy of the Beidou positioning system is about tens of meters, and the time accuracy is about 100ns. GPS 3D positioning accuracy P code currently increases from 16m to 6m, C/A code currently increases from 25-100m to 12m, and the time accuracy is about 20ns a few days ago.
5. User capacity
Because the Beidou Positioning System is a active two-way ranging inquiry-response system, the user equipment and the earth synchronous satellite must not only receive the inquiry signal of the ground center control system, but also require the user device to launch a signal of the synchronous satellite. The user capacity depends on the channel blockage rate of the user, inquiring the signal rate, and the user's response frequency. Therefore, the user equipment capacity of the Beidou positioning system is limited. GPS is a one -way ranging system. As long as the user device receives the navigation electrical text issued by the navigation satellite, the ranging positioning can be performed. Therefore, the user equipment capacity of the GPS positioning is unlimited.
6. Survival ability
Like all positioning satellite systems, the "Beidou" is based on the work of the central control system and satellite, but the "Beidou" on the central control system is significantly much larger, because the positioning solution is not done by the user's device. In order to make up for this systemic damage, GPS is developing interstellar horizontal data chain technology, so that the GPS satellite can operate independently after the main control station is destroyed. The "Beidou" system eliminates this possibility in principle. Once the central control system is damaged, the system cannot continue to work.
7. Real -time
Beidou users' positioning applications should be sent back to the central control system. The center control system solves the user's three -dimensional location data and then sends it back to the user. Time delay is even longer, so for high -speed exercise, the positioning error has increased.
Read recommendations:
C32 (9~90V E-bikes/Motorcycle/Car gps tracker)
gps vehicle tracker.The European Space Agency is seeking 5G to enhance GPS functionality.
The significance of GPS positioning technology in the construction machinery industry.GPS Rastreader
Last article:Application introduction in GPS Meteorology.obd2 gps tracker verizon Production
Next article:The difference between the Beidou satellite positioning system and the Beidou navigation system.plug
Related Information
rastreadores gps
2023-03-16mini gps tracker Vendor
2023-04-234G GPS Tracker equipment
2023-04-23plug & play Obd gps tracker
2023-04-23GPS Tracker for vehicles Vendor
2023-03-16vehicle gps tracker manufacturer
2023-03-16gps vehicle tracker Manufacturing
2023-04-23fleet gps tracking Factory
2023-04-23gps vehicle tracker custom
2023-04-11fleet solution webfleet solutions
2023-03-16C32 (9~90V E-bikes/Motorcycle/Car gps tracker)
2022-06-21G183 serials -JOBD GPS Tracker
2022-09-06G06L- 4G Car GPS Tracker
2022-09-06G03
2022-06-21G500M-Mini GPS Tracker
2022-06-20Brief analysis of functions of vehicle positioning system.vehicle gps tracker webfleet solutions
2023-03-13Car GPS Navigation System Operation
2022-11-04Civil GPS positioning accuracy will reach 1 meter error
2023-02-22What do you think the gps tracker does?
2022-09-13How is GPS positioned?
2023-02-21Gps speed limiter.What should be paid attention to when installing GPS locators on rental company ve
2023-10-20GPS power consumption and noise
2022-09-01Selection of GPS hardware architecture
2022-12-08The development of GPS
2022-10-13What does the 16 channel GPS module mean?vehicle gps tracker wholesaler
2023-07-11Main functions of GPS.Gps speed limiter supplier
2023-08-11The difference between gps and cellular version
2022-11-03Introduction to GPS positioning tracker
2022-12-15mini gps tracker.GPS positioning
2023-11-14Compared with traditional batteries, what are the advantages of 26650 lithium batteries?
2022-10-18