1. Monitoring and dispatching

　　The system has established a rapid, accurate and effective information transmission channel between the taxi and the monitoring center. The center can grasp the vehicle status at any time and issue dispatching orders quickly. At the same time, the driver's emergency alarm can be received and the vehicle can be remotely controlled as required.

　　2. Call for a car

　　When passengers call the taxi hailing telephone of the dispatching center, the network can find taxis in the area for dispatching. The detailed information of shunting is transmitted to the on-board display terminal by voice or Chinese characters, which greatly improves the efficiency of the dispatcher, shortens the time for telephone hailing, reduces the driver's idling mileage, increases the driver's economic income, and relieves the pressure of urban road traffic. It can also provide regular appointment, car dispatching, guest reply, tracking and other functions.

　　3. Emergency alarm

　　The vehicle with on-board terminal is equipped with an alarm switch. Once triggered, the alarm switch will continuously send alarm signals and location information to the dispatching center GIS terminal. The network can choose to track the position through the monitoring terminal, and start the hidden microphone in the vehicle for recording. At the same time, it can broadcast messages to all other vehicles equipped with on-board terminals, announce the situation of the accident vehicles, and alarm to 110 command center, effectively ensuring the personal safety of drivers.

　　4. Information service

　　The monitoring center can provide taxi drivers with traffic information, line consultation information, advertising information (such as hotel and shopping mall advertising), industry information and stock market information to provide services for drivers and passengers.

　　5. Vehicle management

　　There are many vehicles under the taxi company, which requires centralized and unified information management of vehicles. The management content covers the basic information of vehicles (such as license plate number, vehicle type, tonnage, color, etc.), safety records, etc. The system will collect and input all the information of the vehicle, and then provide users with the functions of modification, deletion and query.

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