The GPS locator receives the signal from the GPS satellite and sends it to the server through the communication channel (SIM card or traffic card), which is parsed by the server and presented through the platform. It can locate the specific location of the device in real time.

　　Car navigator is mainly able to help users accurately locate the current position, and calculate the trip according to the established destination, through the map display and voice prompt two ways to guide the user to the destination of the car driving assistance equipment.

　　GPS locator and car navigator are both GPS applications. It is composed of space satellite, ground monitoring and user reception. There are 24 satellites in space forming a distribution network, distributed in six quasi-synchronous Earth orbits 20,000 kilometers above the ground with an inclination Angle of 55°, with four satellites on each orbit. GPS satellites orbit the Earth every 12 hours, enabling any one location on Earth to receive signals from seven to nine satellites simultaneously. A total of one main control station and five monitoring stations on the ground are responsible for monitoring, telemetry, tracking and control of the satellite. They are responsible for the observation of each satellite and provide the observation data to the master station. After receiving the data, the master station calculates the precise position of each satellite at every moment and transmits it to the satellite through three injection stations, which then transmits the data to the ground through radio waves to the user's receiving device.

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