Intersection Blind Spot Collision Avoidance Technology Based On Vehicle Infrastructure Cooperative Systems

Intersection safety is a worldwide problem, and it is not resolved effectively until now. Intersection accidents seriously endanger the safety of the masses. The road is also an important hub for road traffic intersections. Since frequent traffic accidents can cause serious traffic jams, and no signalized intersection is accident prone locations. In such intersection, the vehicle traffic speed is fast, the driver observed a narrow field of vision, the driver can not judge accurately and timely potential collision occurred, so no signalized intersection makes the accident rate of the vehicle traffic efficiency low. In recent years, the security of intersection safety and the improvement of efficiency intersections are the most important road traffic study. Road vehicle coordination technology is the direction of the future development of the intelligent traffic and collaborative system can make real-time exchange for car and truck road by road vehicles. Based on the carriageway cooperative system,this paper analyzed the causes of intersection blind spots, proposed no signal intersections development strategies, intersection collision warning model, and intersection collision avoidance strategy.Firstly, this paper summarized the collaborative technology road vehicles as well as the domestic and foreign vehicle collision avoidance strategy and early warning methods. On the study of the intersection of the blind spot to avoid hit the significance are discussed, Analyzed the existing road intersection types and the basic rules of design, intersection confluence conflict, exchange conflict and shunt conflict were described, analysis the cause of the blind spot. According to the road traffic safety laws and regulations, the development of nonsignal intersection vehicle traffic rulesThen, the theory of vehicle collision is analyzed. According to the existing conflict resolution method, the collision time and the time of collision are predicted. The coherent vehicles were screened, and the blind spot avoidance warning strategy of intersection was put forward. According to the traffic rules, this paper chooses vehicle with priority, the warning classification method and the relevant vehicle warning system. When the most advanced warning, the blind spot avoidance control strategy, calculate the vehicle speed to avoid collision. And according to the control strategy, the vehicles do not have the priority of the implementation of speed control, and ultimately achieving the effect of vehicle collision avoidance.Finally, its feasibility of the simulation of the collision avoidance strategy is verified by using MATLAB simulation software. Vehicle speed is randomly generated. Software first predicts whether a collision will occur.When the vehicle will collide, the article uses the collision avoidance strategy to calculate the speed of the vehicle. In the calculation process, in order to ensure the safety of vehicles running, the article sets the vehicle deceleration. In this paper, we use the MATLAB dynamic graph functions, and intuitive will reflect the trajectory of the vehicle, from the final simulation obtained, based on Cooperative vehicle crossing blind spots to avoid collision strategy has certain reliability.