Crossroad traffic light intelligent control method and system on the basis of vehicle positioning

Abstract

The present invention discloses a crossroad traffic light intelligent control method and system on the basis of vehicle positioning. The method comprises: obtaining vehicle positioning information on two roads which form a crossroad in real time; analyzing the crowded grade of each road in the two roads in real time through the vehicle positioning information; and when the crowded grade of only one road in the two roads is larger than a preset degree, setting the traffic light corresponding to the road to be a red light, and setting the traffic light of the other road to be a green light. According to the invention, firstly, on the basis of the vehicle positioning information, the crowded grade of two roads at the crossroad are analyzed, and when the crowded grade of only one road in the two roads is larger than a preset degree, the traffic light corresponding to the road is set to be a red light, and the traffic light of the other road is set to be a green light, therefore the condition that vehicles on the two roads cannot be dispersed is avoided, the vehicle dispersion effect of roads on the crossroad is improved, and the traffic jam phenomenon is reduced.

Description

technical field [0001] The invention relates to the technical field of traffic control, in particular to an intelligent control method and system for traffic lights at intersections based on vehicle positioning. Background technique [0002] As we all know, in order to ensure road traffic safety as much as possible, many intersections are equipped with traffic lights. By switching the traffic lights at the intersections, it is possible to prohibit or allow vehicles on a certain road to move. [0003] At present, the traffic lights on the crossroads are switched and controlled mainly through the timing switching method. This method can effectively control the vehicles when the two roads on the crossroads (set as road A and road B) are unblocked. However, once there is a traffic jam on a road (assuming road A) at the intersection, when the traffic light of road A is switched to green and the traffic light of road B is switched to red according to the timing switching method ,...

AI Technical Summary

Problems solved by technology

[0003] At present, the traffic lights on the crossroads are switched and controlled mainly through the timing switching method. This method can effectively control the vehicles when the two roads on the crossroads (set as road A and road B) are unblocked. However, once there is a traffic jam on a road (assuming road A) at the intersection, when the traffic light of road A is switched to green and the traffic light of road B is switched to red according to the timing switching method , it will cause road A to be unable to divert vehicles because it is already in a congested state, and road B to be unable to divert vehicles because the corresponding traffic light is red

Moreover, the following situation may also occur. Due to the excessive number of vehicles in the direction of road A, the vehicles on road A are congested at the intersection. At this time, even if the traffic light of road B is switched to green, due to The vehicle on is already at the intersection at this time, thus hindering the normal passage of vehicles on road B

It can be seen that when there is traffic congestion on a certain road at the intersection, the method of regularly switching traffic lights cannot effectively improve the vehicle guidance effect, and may even aggravate the traffic jam

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