At present, car technology has been very mature. It is widely used in the anti -theft tracking of private cars, the dispatch control of logistics cars, the security of the taxi of the taxi, the intelligent newspaper station of the buses, etc. Cheap. You can buy a few hundred yuan in the market [1]. Its core technology is GPS, and the electronic land is the soul of GPS. Only through it can the vehicle positioning can only be achieved. When the vehicle position is determined, the data is sent to a third party through wireless transmission. In this technology, we have established a model that can simulate the operation of the vehicle. It can determine the location of the vehicle through the GPS positioning system. Through the wireless transmission system, the location information of the vehicle is sent to the control center. Give the vehicle and let the vehicle reach the specified position, that is, a model that has established a vehicle system through the GPS/GSM "unmanned driving" vehicle system. Of course Through the control button to send instructions to the workstation. After confirming the workstation, the driver was informed that the vehicle entered the "driverless" state since then. The exercise of the car was determined by the control center. The driving right of the car is repaid to the user. In order to prevent accidents, users can also interrupt the connection with the control center at any time.

　　This system simulates this model. GSM is used as a medium of data transmission. It is used as a control center with PC, instead of vehicles with a car, and the operation of the vehicle on the campus. The PC is transmitted to the PC. After the PC processing, the location of the car on the map is displayed, and then the PC is issued by the PC to send the instruction to the car via GSM. The car is executed in the instruction.

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Compared with the difference between Beidou positioning and GPS positioning.gps tracker for trailer