Research On Real-Time Scheduling Model Based On Vehicle-Road Cooperative Sensing

At present,the number of cars in China has risen sharply,and the loads carried by urban traffic intersections are increasing.Congestion at traffic intersections is one of the most important cause of urban traffic congestion.Based on the future application trend of C-V2 X Internet of Vehicles technology in smart transportation,this paper studies and designs a framework and dynamic scheduling method of intersection traffic scheduling system based on real-time information statistics of traffic participants.The key research contents include three aspects:(1)In view of the inaccuracy of traditional traffic object perception statistical data and high data transmission delay of traditional traffic perception technology,the paper studies and designs a traffic scheduling system architecture based on V2 X vehicle-road collaborative intelligent perception,which integrates real-time sensor information through C-V2 X communication,high-definition camera and radars.Obtaining vehicle information such as vehicle type,location and speed improves the accuracy of information acquisition of road equipment and ensures the real-time performance and effectiveness of traffic control.It also predicts the peak value of vehicles traveling under normal traffic flow at different intersections,and provides data basis for the scheduling of traffic intersections with and without traffic lights.(2)In view of the problems of non-dynamic adjustment of signal phases and unreasonable timing of traffic control at traffic intersections with signal lights,this paper studies and designs a mutually exclusive model and method of traffic intersections based on game theory algorithms.By calculating and predicting the real-time traffic flow of the current intersection,calculating the priority of vehicles passing through each lane,realizing the control of traffic lights based on game theory and controlling the timing based on the size of the traffic flow,the waiting time of vehicles at the intersection is reduced and the transportation efficiency is improved.(3)Aiming at the problems of unreasonable control of the speed of vehicles passing through intersections under traffic lights without traffic lights,collisions,and frequent communication between vehicles and road test equipment cause message turmoil and other problems.This paper designs a vehicle intersection control method based on V2 X communication.Through the formation team formation model based on V2 Xcommunication,vehicles are reasonably formed and teamed up,the trajectory of vehicle passing through the intersection is predicted,the speed of vehicles is dynamically adjusted and the collaborative control and traffic efficiency are improved.Finally,the thesis sets up test scenarios and simulation experiments in different situations through the vehicle networking simulation platform according to different experimental requirements,and the test verifies the correctness of the research content of the thesis.