Intelligent traffic light controlling method and system

Abstract

The invention discloses an intelligent traffic light controlling system which comprises a monitoring camera, a traffic signal lamp and countdown lamp, a crossing traffic flow detection microprocessor, a traffic signal timing automatic adjustment and calculation microprocessor, a display driver module, a digital image processor, and an I / O interface. A controller automatically adjusts signal timing of traffic lights to enable utilization rate of green light in each direction of the crossing to increase or decrease along the same trend, compared with the traffic flow, thereby identifying flow state of the crossing in an effective and dynamic manner, adjusting signal timing automatically, and reducing traffic jam.

Description

technical field [0001] The invention relates to the traffic field, in particular to an intelligent traffic light controller in the traffic field. Background technique [0002] At present, the urban traffic situation in major large and medium-sized cities in my country is not optimistic. There are many vehicles, road congestion, and serious vehicle exhaust pollution. These have become an important factor restricting social and economic development to some extent. According to the research results of experts from the Sustainable Development Strategy Research Group of the Chinese Academy of Sciences, 15 cities in China lose nearly 1 billion yuan in wealth every day due to traffic congestion and management problems. In addition, congested traffic can easily cause bad psychological emotions of drivers and increase the probability of traffic accidents. [0003] The use of advanced technology is an effective way to solve the current urban traffic dilemma. With the help of advanced...

AI Technical Summary

Problems solved by technology

[0004] Although intelligent traffic lights have such attractive advantages, researchers have also carried out research on this and designed some intelligent traffic light control schemes, but at this stage, it has not been widely used. The main reason is that The existing intelligent traffic light control method needs to detect the number of vehicles waiting in the direction of the intersection in real time, which requires two vehicle detectors to be installed at two places separated by a certain distance behind the stop line of each lane, and the detected vehicle data Transmission to the traffic signal controller requires a large amount of installation work, which will affect the traffic of the construction section, and may damage the existing road surface, requiring a large amount of capital investment

Vehicle detectors mainly include ultrasonic, infrared, microwave radar, ground sense coil and other types. Each type of detector has its own advantages and disadvantages, and there is no uniform standard for its selection.

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