GPS system principle

　　System principle

　　The vehicle system receives satellites (a total of 24 pieces, which runs on the 6 satellite orbit). Data from the coordinate position of the satellite itself per second can be planted by the user receiver. For mobile vehicles, the data of the fourth satellite is required to combine the calculation of the mobile vehicle's mobile speed and movement direction. The coordinate data is transmitted by the modem. After the communication network, the control center restores the coordinate data sent back to the coordinate data sent back to the vehicle system through the modem, and matches the electronic map on the workstation, and the current correct position of the tracked vehicle is displayed on the map, so the monitoring is monitoring. The center can clearly grasp the macro dynamic location information and operating conditions of the vehicle.

　　System functions

　　· Instant tracking system

　　· Data loading

　　· Smart allocation

　　· Supervision of cargo and driver

　　· Mobile communication

　　· Transportation supervision

　　· The display and analysis of the line

　　· Automatic emergency tracking and communication

　　· Personal security

　　· Driver assisted navigation

　　· Rescue on the road

　　·remote control

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