Vehicle-road synergic early warning system with fast passage prompt function and early warning method thereof

Abstract

The invention relates to a vehicle-road synergic early warning system with a fast passage prompt function and an early warning method. The system obtains the distance between a vehicle and an intersection through the signal strength measurement between an intersection controller and a wireless transmission module of a vehicle-mounted controller; and by combining the distance between the vehicle and the intersection, measured by two controller GPS (global positioning system) modules, the system finally obtains the distance between the vehicle and an intersection stop line through an information fusion method. The GPS module judges the running direction of the vehicle, and the intersection controller transmits the signal light information of the vehicle running direction and the GPS information thereof to the vehicle-mounted controller by use of the communication function of the wireless transmission module. The system has a fast passage prompt function, and can correctly guide the vehicle to fast pass the intersection so as to ensure the driving safety.

Description

technical field [0001] The invention relates to a vehicle-road cooperative early warning system and an early warning method with a fast-passing prompt function. Background technique [0002] In the field of active safety in intelligent transportation, safe, efficient and low-carbon technologies are the three major themes in the development of vehicle-road coordination technology. Among them, safety technology is directly related to personal life and property loss, and has become one of the leading directions for the development of vehicle-road coordination technology in the future. one. [0003] Intersections are areas where traffic accidents frequently occur on urban roads. According to survey data, traffic accidents at intersections account for about 1 / 3 of road traffic accidents in my country. Running red lights at intersections is an important cause of accidents, including intentional red light violations by vehicles rushing through at high speeds and unintentional red ...

AI Technical Summary

Problems solved by technology

The problem is that every driver needs to have a good time and distance perception ability, which is difficult for ordinary drivers and lacks an effective means of assisting decision-making

In the absence of effective means of guiding traffic, some vehicles that can pass through the intersection smoothly cannot pass due to reasons such as driver hesitation, which will seriously affect the traffic efficiency of the intersection, especially for traffic flow in the peak period of the urban road network. in this way

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