Vehicle-road cooperation precise positioning method based on electrified highway

A vehicle-road cooperation precise positioning method based on an electrified highway, wherein the method is applied to a vehicle-road cooperation positioning system of the electrified highway, and the vehicle-road cooperation positioning system of the electrified highway comprises a roadside bracket, a roadside positioning module, a communication line and a vehicle-road connection information system, wherein the roadside bracket, the roadside positioning module and the communication line are all arranged on the electrified highway, the roadside positioning module is fixed to the roadside bracket, and the roadside positioning module is connected to the vehicle-road connection information system through the communication line;

• the method comprising:
• measuring position information of its own positioning point by using the roadside positioning module;
• determining absolute coordinates of all points on the communication line according to the position information;
• acquiring a contact signal when the vehicle-road connection information system comes into contact with the communication line, and determining position information of a contact point according to the contact signal and the absolute coordinates;
• and
• based on a conversion algorithm, determining current vehicle mass center position coordinate information according to the position information of the contact point and parameter information of the vehicle-road connection information system.