System and method for vehicle speed guidance at signal-controlled intersections based on vehicle-road coordination

Abstract

The present invention provides a signal-controlled intersection vehicle speed guidance system based on vehicle-road coordination, including an information communication module; an information collection and processing module, which obtains the vehicle information of the vehicle through the combined collection and processing of GPS and INS, and collects the vehicle information of the preceding vehicle through the information communication module and the signal state information of the signal; the vehicle speed guidance suggestion module, when the vehicle enters the guidance range, according to the vehicle information of the vehicle within the guidance range and the signal state information of the signal machine, it is judged whether the vehicle is within the range of the road section where lane change is allowed, and the vehicle speed is provided. Guidance suggestions and driving lane suggestions; the vehicle safety warning module calculates the safety margin value between the two vehicles according to the vehicle information of the own vehicle and the vehicle in front, and judges the collision risk state according to the safety margin value. The invention fully considers the real-time position, real-time speed of the vehicle and the mutual influence between the vehicles, so that the vehicle can reduce the parking delay when passing the signal-controlled intersection, so as to improve the traffic efficiency of the road and reduce environmental pollution.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a signal-controlled intersection vehicle speed guidance system and method based on vehicle-road coordination. Background technique [0002] In the existing traffic signal control system, there is a lack of data interaction between vehicles and between vehicles and signal control equipment, resulting in the switching time of red lights and green lights being random for drivers, and it is difficult to predict when they arrive at the next intersection. Therefore, it is impossible to optimize and adjust the vehicle speed in advance, which has an adverse effect on the traffic efficiency and safety of the intersection. [0003] In response to the above problems, researchers at home and abroad have proposed a single-vehicle speed guidance method based on vehicle-road coordination, which has achieved certain results in improving intersection traffic efficiency and reducing inter...

AI Technical Summary

Problems solved by technology

Although the existing single-vehicle speed guidance method based on vehicle-road coordination strengthens the interaction between the driver and the signal machine, it ignores the influence of the interaction between the front and rear vehicles on the driving state, so its effect in practical applications is not good.

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