Some car mounted GPS locators have an emergency call alarm function. When the driver encounters an emergency situation and the emergency alarm button is pressed for more than 2 seconds, the onboard terminal will continuously send anti robbery alarm signals to the alarm monitoring center. Due to the complexity of social security conditions, many drivers of public transportation, tourism, and long-distance buses in the past were afraid to report public security cases such as theft and robbery in their cars due to fear of retaliation, which further worsened the situation and seriously affected the social image of the passenger transportation industry and enterprises. After using this function, the driver can send an alarm to the center without any signs, and the center can judge the alarm situation based on the condition inside the car and report it to the public security organs.

　　1. Vehicle scheduling function

　　The monitoring center can select an area on the electronic map and issue broadcast instructions. Vehicles driving in this area will automatically transmit information to the monitoring center, and staff can dispatch vehicles as needed through GSM phone.

　　2. Monitoring alarm function

　　In the event of a vehicle being robbed, the driver can quietly press the alarm button in the hidden area, and the monitoring center can check the location of the affected vehicle and monitor the movement inside the vehicle in real time. 3. Information query function

　　You can query any online advocacy materials through the database, such as:

　　-Geographic information database: place names, streets, house numbers, etc;

　　-Mobile target database: vehicle model and profile photos, driver name, etc;

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