One of the main requirements coming from different clients is to add an "anti-theft alarm" function to our gps trackers, which will trigger the loud BEEP BEEP alarm whenever the motorcyc...
GPS is a passive satellite navigation system. In the passive ranging system, the user antenna only needs to receive navigation positioning signals from these satellites, so as to measure the dista...
1. Pseudo -distance measurement and pseudo -distance single -point positioning The pseudo -distance measurement is to determine the distance from the satellite to the receiver, that is, the meter...
GPS refers to a radio navigation positioning system that uses GPS satellites to provide information such as three -dimensional positions and three -dimensional speeds all over the weather around t...
Since China's first man-made satellite was put into orbit in 1970, 30 different satellites have been launched, creating favorable conditions for the space survey work of New China. In the earl...
For car users, the GPS monitoring system has powerful anti-theft and navigation functions. In the United States and Western Europe, it has been popular for a long time. Cars, trucks and buses are ...
From the current mainstream models in the market, the main anti-theft methods include engine immobilization system (IMMO), remote keyless entry (RKE), keyless access control (PKE), two-way smart k...
1. Satellite trajectory There are 24 GPS satellites orbiting the earth along six orbits (every four satellites in a group). Generally, no more than 12 satellites are on the same side of the earth...
Since December 27, 2011, the automobile GPS positioning system has started to provide continuous passive positioning, navigation, time service and other trial operation services to China and surro...
1. Positioning accuracy: The positioning accuracy of the Beidou positioner depends mainly on the accuracy and satellite signal strength of the Beidou positioning system. At present, the positionin...
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