1 Positioning

　　Send data to the GPS operating vehicle operation management system through the terminal to obtain real-time geographic location information of the vehicle.

　　The location information sent by the terminal should be real-time, including longitude, latitude, time, and speed. The collection time can be adjusted within 3-600 seconds. The sending time can be manually set. There are several sending methods, including automatic sending and touch sending.

　　2. Alarm and rescue

　　Through the alarm signals sent by the driver to the GPS operating vehicle operation management system and the analysis of the vehicle operation status by the GPS operating vehicle operation management system, timely grasp the abnormal operation status of the vehicle, provide real-time information such as the vehicle's position, running speed, running direction and status to relevant departments (owner unit, public security department, maintenance), and remotely cut off the vehicle's fuel supply according to needs, so as to turn off the vehicle, Facilitate relevant departments to organize rescue efforts.

　　The terminal can achieve overspeed alarm function, while supporting overspeed duration setting and segmented speed limit function, that is, the vehicle will only alarm when the overspeed duration exceeds the set value, and set different speed limit values for different road sections or areas where the vehicle continues to travel. When the overspeed alarm is triggered, the driver is alerted by voice.

　　The terminal has an emergency alarm function. When encountering an alarm or special situation, the driver presses the alarm switch, and the terminal continuously sends alarm messages to the monitoring center until the alarm is cancelled.

　　The terminal has a monitoring function, and after the monitoring center issues a monitoring command, it can monitor the sound around the terminal.

　　The terminal has the function of remotely cutting off the vehicle's fuel supply and extinguishing the vehicle.

　　3 Command and dispatch

　　Through the GPS operating vehicle operation management system, real-time control of the vehicle's location, verification of transportation status and surrounding road conditions, and command and dispatch as needed to improve transportation production and operation efficiency. At the same time, management departments can timely dispatch transportation inspection vehicles for quick market inspections.

　　The terminal requires a display screen or other display device that can receive and display messages sent by the center, and also has a voice prompt function to remind drivers to pay attention and promptly correct violations. The terminal can also upload messages to the center, and for the convenience of car owners, the terminal can preset daily usage message content through the monitoring center.

　　4 Communication

　　The terminal can provide wireless mobile voice and data communication services, providing convenience for drivers and passengers.

　　For terminals that use SMS, GPRS, CDMA, and other communication methods, they must have the function of compressed data return, so that the sent positioning information contains multiple positioning information, in order to reduce the usage costs of road transportation enterprises and car owners.

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