Collision early warning method and system based on vehicle-road cooperation and road side unit

Abstract

The invention provides a collision early warning method and system based on vehicle-road cooperation and an intelligent terminal, and the method comprises the steps: collecting the original sensor data of a moving target in a set space region, and carrying out the matching of the motion information of the moving target; identifying the type of the moving target based on the original sensor data and the matched moving information of the moving target, and dynamically tracking the moving target; according to the dynamic tracking result, predicting the occurrence probability, the occurrence region and the collision moment of the collision accident in a future preset time period; and if judging that the occurrence probability of the collision accident is higher than a preset value, outputting the occurrence area and collision moment of the collision accident in the form of alarm information. Vehicle-mounted and roadside communication equipment of the Internet of Vehicles is utilized, the equipment installation requirements for vulnerable traffic participants are reduced, and the accuracy of early warning is improved through the directional sound wave transmission technology.

Description

technical field [0001] The invention relates to the technical field of road warning, in particular to a collision warning method, system and roadside unit based on vehicle-road coordination. Background technique [0002] In road traffic practice, the visual blind spot of large vehicle drivers has always been a common cause of traffic accidents. Especially at intersections, accidents that collide with vulnerable traffic participants such as non-motor vehicles and pedestrians often occur when large vehicles turn right, start from a stationary state, and the like. In order to avoid loss of life and property caused by traffic accidents, protective measures can usually be taken from three aspects: vehicles, roads and pedestrians. [0003] The protective measures taken in terms of vehicles currently include the installation of visual cameras, millimeter wave radars, ultrasonic sensors, infrared sensors and other equipment along the longitudinal sides of the vehicle to realize the...

AI Technical Summary

Problems solved by technology

This early warning method using wireless communication technology can be used in complex environments, but its defects are also obvious. On the one hand, adding radio frequency identification tags to clothing and non-motor vehicle body structures will affect the appearance and structural stability of clothing respectively. ; On the other hand, it is difficult to guarantee the effectiveness of the early warning by ignoring the vulnerable traffic participants and only providing early warning information to the drivers of large vehicles through wireless communication

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