What is the function of GPS in automobile installation?

The satellite locator supports the access of the call handle, which can realize voice call and support voice/short message scheduling.

2. Route planning and navigation

Providing travel path planning is an important auxiliary function of car navigation system, including automatic path planning and manual path design.

3. Theft prevention and robbery prevention

Through real-time positioning and querying the vehicle position, the stolen vehicle can be retrieved in time to avoid causing significant economic losses. Moreover, the general GPS positioning system integrates the alarm function, so drivers can immediately call the company phone or 1 10 for help in case of emergency.

4. Data collection

The management platform collects the positioning information of all vehicles, processes it uniformly and releases it to relevant units or platforms to achieve the purpose of information sharing and cooperation.

5. Emergency assistance

Through the GPS positioning and monitoring management system, emergency assistance can be provided to vehicles in danger or accidents. The electronic map of the monitoring station displays help information and alarm targets, plans the optimal rescue plan, and reminds the personnel on duty to carry out emergency treatment with alarm sound and light.

Extended data:

GPS characteristics

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, the positioning accuracy is high

The relative positioning accuracy of GPS can reach 10-6m, 100-500km, 10-7m, 1000km within 50km. 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. ..

3, the observation time is short

With the continuous improvement of GPS system and the continuous update of software, the relative static positioning within 20km takes only 15-20 minutes; In the fast static relative positioning measurement, when the distance between each mobile station and the reference station is within 15KM, the observation time of the mobile station is only 1-2 minutes; When the real-time dynamic positioning mode is adopted, the observation of each station takes only a few seconds.

Therefore, using GPS technology to establish control network can greatly improve work efficiency.

4. Interstation intervisibility is not required.

GPS survey only requires the stations to be open above, and does not require the stations to see each other, so it is no longer necessary to build beacons. This advantage can not only greatly reduce the cost and time of investigation (the general bidding cost accounts for about 30% ~ 50% of the total cost), but also make the selection of points very flexible, and also save the measurement of transfer points and transition points in the classic investigation.

Baidu encyclopedia -—GPS