Intelligent traffic signal lamp control device based on comprehensive computer vision

Abstract

The invention relates to an intelligent traffic signal lamp control device based on the comprehensive computer vision, which comprises a camera device and a microprocessor, wherein the camera device is installed above the middle part of an intersection and used for obtaining a traffic state panorama video image at the whole intersection; the microprocessor is used for detecting the queue length of vehicles waiting for passing through at the intersection and the congestion state of an outlet according to the panorama video data of the camera device and deciding the signal lamp control strategy and controlling the signal lamp switching action; the intelligent control carried out by the signal lamp control strategy of each phase to traffic signal lamps is determined through detecting the vehicle queue length at an inlet of each phase and the congestion state at the outlet, so that the sequence at the intersection is good, therefore, the conflict points where the traffic accidents are possibly caused are reduced or completely eliminated, and the operating indexes at the intersection are optimal.

Description

technical field [0001] The invention belongs to the application of omnidirectional vision sensor technology, digital image processing technology and embedded system in signal lamp control, especially the application of an omnidirectional computer vision-based intelligent traffic signal lamp control device in intelligent traffic. Background technique [0002] Today's traffic problems have become a global "urban problem", and traffic congestion is the main manifestation of the city's "traffic disease". To solve the "cause" of urban traffic congestion, we must start from many aspects, such as providing real-time dynamic traffic guidance and static traffic guidance information for travelers. In addition, the use of excellent intelligent traffic light control devices can also effectively alleviate traffic congestion. . [0003] At present, traffic lights generally preset a fixed traffic light conversion cycle according to the number of vehicles at the intersection. For inter-cit...

AI Technical Summary

Problems solved by technology

[0021] In order to overcome the limitations of the detection of the existing traffic signal light control device, the high cost of implementation investment and maintenance, the contact detection method is not friendly to roads and vehicles, it is difficult to detect the queue length of vehicles waiting to pass through in real time and the congestion of road exits state, it is impossible to real-time adjust the control cycle of the signal light and the green signal ratio according to the queue length of the vehicle and the congestion state of the road exit. According to the detection results of the intersection state, the control strategy of the signal light is adjusted in real time, so that the intersection has a good order, reduces or completely eliminates the conflict points that may cause traffic accidents, and makes the best operating indicators of the intersection. Intelligent traffic lights based on all-round computer vision control device

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