Gps speed limiter.How does the automobile GPS positioning system achieve vehicle positioning

　　The automotive GPS positioning system requires support from various software and hardware aspects to achieve vehicle positioning, including GPS satellites, ground wireless networks, GIS geographic information systems, GPS positioning software platforms, GPS locator equipment, and so on

　　Firstly, the GPS satellite system is the fundamental support for positioning. It is supported by 24 artificial Earth satellites from the United States, evenly distributed on the surface of the Earth, and sends broadcast signals to the ground for use by ground users

　　We install GPS satellite locator equipment on the vehicle and power it on. When it searches for satellite signals, it locates itself. In theory, the more satellite signals it searches for at the same time, the more accurate and fast the positioning is

　　When the GPS locator device determines its position, it sends the positioning coordinates to the server of the GPS positioning system through its SIM card and ground network

　　After the server obtains the coordinate values, it parses them into the webgis system and obtains the map location of the device (vehicle)

　　Users access information servers online through channels such as computer software, computer web pages, and mobile software to obtain map locations and other information, thus completing a GPS positioning system positioning.

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The running track of the gps tracker is an important auxiliary evidence