Traffic light control method

Abstract

The invention belongs to the field of intelligent transportation and specifically relates to a traffic light control method for controlling traffic lights dynamically and in real time according to practical traffic information. The method disclosed by the invention comprises the steps of: designing a traffic phase set, ways for deploying information acquisition nodes and information aggregation nodes, a node sleep wake-up strategy and a traffic light control strategy. Aiming at a disadvantage that the traditional timing traffic light control solution cannot realize maximum utilization of roads, the traffic light control method disclosed by the invention controls the change of traffic signal lights in real time according to the practical traffic information, reduces vehicle waiting time and efficiently mitigates traffic congestion. The traffic light control method disclosed by the invention is also designed with an energy saving system for saving energy consumed by the information acquisition nodes, the aggregation nodes and traffic light controllers. The traffic light control method disclosed by the invention can be applied to any traffic intersection, and is installed and used conveniently and reliably.

Description

[0001] The name of the original patent application: traffic flow detection system and traffic light control method [0002] Original application number: 201010208426.8 [0003] Original filing date: June 24, 2010 technical field [0004] The invention relates to a traffic light control method, in particular to a method for dynamically controlling traffic lights by using traffic flow information. Background technique [0005] The rapid economic growth has caused the increase in the number of cars in various cities to far exceed the speed of urban traffic road construction in my country, which has caused a series of problems such as increased urban traffic congestion, increased traffic accidents, and aggravated environmental pollution. At present, traditional timed traffic light control methods are simply unable to cope with the huge and complex random situations in urban traffic, the main reasons are as follows: [0006] (1) Lack of sufficient traffic flow information [0...

AI Technical Summary

Problems solved by technology

[0012] The present invention solves three key problems: one is to solve the traditional road traffic flow detection coil volume, high cost, serious damage to the road surface by laying or maintenance, short coil life, poor system stability, and cannot be popularized and used; the other is to solve The shortcomings of the traditional timing traffic light control scheme that cannot maximize the use of roads; the third is to solve the energy supply problem of information collection nodes in this wireless network system

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