Vehicle flow detection system and traffic lamp control method

Abstract

The invention provides a vehicle flow detection system and a traffic lamp control method. A traffic lamp can be controlled by a wireless network formed by adopting a plurality of information acquisition nodes and an information aggregation node according to actual vehicle flow. The information acquisition nodes are arranged in the middle of each vehicle passing traffic lane to acquire vehicle flow and transmit to the information aggregation node in a wireless mode; the information aggregation node controls the time delay of the traffic lamp by adopting a fuzzy theory according to vehicle flow information; and the information acquisition nodes ensure long-period stable operation by adopting a solar power supply and a sleep and wake-up mechanism. The invention can accurately detect the vehicle flow of various directions of a crossroad, increases road passing efficiency, improves crowded urban traffic condition and can overcome the defects that the traditional traffic lamp is controlled in time to waste time, and geomagnetic coils can not be popularized, and the like.

Description

technical field [0001] The invention relates to a method for detecting traffic flow and controlling traffic lights, which adopts wireless network technology, and specifically relates to a wireless network system that uses AMR magnetic sensitivity technology to detect traffic flow and dynamically control traffic lights by using the traffic flow. Background technique [0002] 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: [0003] (1) Lack of sufficient traffic flow information [0004] The detection of traffic flow is the basis for th...

AI Technical Summary

Problems solved by technology

[0009] The present invention solves three key problems: one is to solve the traditional road traffic flow detection coil bulky, 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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