Traffic signal global control method and system based on radio frequency identification technology

Abstract

The invention provides a traffic signal global control method and system based on the radio frequency identification technology. The method comprises the steps that traffic information in all directions of a traffic light road junction is collected, wherein the traffic information is used for reflecting the traffic jam situation in the directions; traffic coordination information sent by an adjacent traffic light road junction is received, and used for indicating the current situation of control of the adjacent traffic light road junction over traffic jams; working conditions of traffic lights in all the directions of the traffic light road junction are controlled according to the collected traffic information and the received traffic coordination information. The traffic signal global control method and system based on the radio frequency identification technology can achieve comprehensive traffic optimal control, and traffic jams can be further relieved compared with a scheme which carries out traffic light control only with consideration of the traffic jam on the current road junction.

Description

technical field [0001] The invention relates to the field of intelligent traffic signal control, in particular to a method and system for overall traffic signal control based on radio frequency identification technology. Background technique [0002] The increase of urban vehicles directly leads to traffic congestion, especially at some key intersections, where the congestion is more serious, and traffic lights are an effective means to regulate the traffic flow at intersections and relieve congestion. [0003] An existing traffic light control scheme is to set the working hours of traffic lights based on experience. The problem with this method is that it may not match the actual traffic conditions, causing some directions with less traffic to occupy the green time for a long time, and some The direction with high traffic volume takes up a shorter green light time, thus exacerbating traffic congestion. [0004] Another existing traffic light control scheme is to use techno...

AI Technical Summary

Problems solved by technology

[0003] An existing traffic light control scheme is to set the working hours of traffic lights based on experience. The problem with this method is that it may not match the actual traffic conditions, causing some directions with less traffic to occupy the green time for a long time, and some The direction with high traffic volume takes up less green light time, thus exacerbating traffic congestion

[0004] Another existing traffic light control scheme is to use technologies such as geomagnetic coils, video monitoring or RFID (Radio Frequency Identification, radio frequency identification) to monitor the traffic flow in all directions at the intersection, and then control the traffic lights according to the actual traffic flow. This improves the traffic rate of the road and alleviates traffic congestion, but such schemes usually only consider the traffic flow information of the intersection, and do not consider the traffic flow information of adjacent intersections, so it only performs traffic optimization control for a single point, It is impossible to carry out traffic optimization control for the whole world

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