Intersection vehicle collision probability calculation method and system considering positioning error and communication time delay

Abstract

The invention relates to an intersection vehicle collision probability calculation system considering positioning errors and communication time delay. The system comprises an OBU, a GPS, an RSU and an MEC, wherein the vehicle-mounted positioning module GPS is used for collecting current position information of a vehicle, and the road side communication unit RSU is used for collecting intersection map information; the OBU is installed on a vehicle and used for downloading intersection map information sent by the RSU, and the MEC is installed at a road end and used for vehicle position prediction, collision probability calculation and intersection traffic coordination. According to the method, the minimum safety distance considering the positioning error and the communication time delay is constructed, so that the timeliness of early warning is ensured, and better early warning performance is provided for the vehicle.

Description

technical field [0001] The invention belongs to the field of automatic driving safety, and in particular relates to a method and system for calculating the collision probability of vehicles at intersections considering positioning errors and communication time delays. Background technique [0002] With the development of Internet of Vehicles technology, vehicle active collision avoidance warning system has become a current research hotspot. The Internet of Vehicles technology has promoted the integration of transportation. Through the real-time information interaction between vehicles and vehicles, vehicles and roads, the transportation system has become a coordinated and orderly whole, thereby greatly improving traffic efficiency and vehicle safety. [0003] Intersection is a traffic scene where vehicle collision accidents are prone to occur in road traffic. Due to the many blind spots of vehicles in the intersection scene, the driver's incomplete perception of the surround...

AI Technical Summary

Problems solved by technology

[0003] Intersection is a traffic scene where vehicle collision accidents are prone to occur in road traffic. Due to the intersection scene, there are many blind spots in the vehicle, and the driver's incomplete perception of the surrounding driving environment information leads to the occurrence of vehicle collision accidents.

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