What is the function of GPS?

1. Timing positioning: locate the vehicle position (5- 10M) and the vehicle driving state, such as speed, direction, latitude and longitude, etc.

2. Playback of historical track: Playback the entire driving route of the vehicle in a certain period of time on the map.

3. Overspeed alarm: When the actual vehicle speed exceeds the set maximum speed, the secondary alarm information will be uploaded to the monitoring center platform, and the overspeed report can be derived for reference.

4. Remote lock: A car with a relay can send a remote command to cut off and connect the car circuit or oil circuit, so that the car can't run.

5. Cross-border alarm: The center can set the driving area for the designated vehicle, and the platform will automatically give an alarm when the vehicle drives out of the set area.

6. Robbery alarm: In case of emergency payment such as robbery, you can press the emergency button to call the police and deal with the emergency quickly.

7. Power failure alarm of the main power supply: After the power supply of the vehicle terminal is cut off, the standby battery automatically starts to supply power, and the terminal sends a power failure alarm prompt to the platform.

Extended data:

GPS function:

(1) global all-weather positioning

The large number and uniform distribution of GPS satellites ensure that at least four GPS satellites can be observed at any time anywhere on the earth, and ensure the realization of global all-weather continuous navigation and positioning services (except lightning is not suitable for observation).

(2) high positioning accuracy

The application practice proves that the relative positioning accuracy of GPS can reach 10-6 meters in the range of 50 kilometers, 100-500 kilometers, 10-7 meters and 1000 kilometers. In the precise positioning of 300- 1500m project, the plane position error of the solution is less than 1 mm after more than1hour observation. Compared with the side length measured by ME-5000 electromagnetic wave range finder, the maximum side length difference is 0.5 mm, and the calibration error is 0.3 mm. ..

References:

Baidu encyclopedia -GPS