The invention discloses a vehicle-mounted terminal real road dynamic positioning precision automatic assessment system and method. The system comprises a test vehicle on which a vehicle-mounted unit to be tested is installed, a first road side unit and a second road side unit which are respectively arranged at the entrance and the exit of a test area, and a background server which is respectively connected with the vehicle-mounted unit to be tested, the first road side unit and the second road side unit. When the vehicle-mounted unit to be tested communicates with the road side units through microwaves, the road side units record time points of communication with the vehicle-mounted unit to be tested and upload the time points of communication to the background server. The vehicle-mounted unit to be tested positions current position information of the test vehicle and uploads current time points at which the current position is the same with a preset reference position to the background server. The background server judges whether positioning error of the vehicle-mounted unit to be tested is within set error according to the received data. According to the system and the method, rapid automatic assessment of vehicle-mounted unit positioning precision can be realized, and labor and time cost can be reduced to a great extent.
Vehicle-mounted terminal real road dynamic positioning precision automatic assessment system and method
2016-02-24
Patent
Electronic Resource
English
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
High-precision vehicle positioning method based on vehicle-road system
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|European Patent Office | 2022
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