Traffic signal intelligent control system and method based on image processing

An intelligent control system and traffic signal technology, applied in the traffic control system, road vehicle traffic control system, image communication, etc., can solve the problem of high traffic costs of foreign imported signals, avoid unreasonable time allocation and save waiting time, easy implementation

Inactive Publication Date: 2010-09-22
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But foreign imported signal transportation costs are very expensive

Method used

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  • Traffic signal intelligent control system and method based on image processing
  • Traffic signal intelligent control system and method based on image processing
  • Traffic signal intelligent control system and method based on image processing

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Experimental program
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Embodiment 1

[0028] Embodiment one: see figure 1 , the traffic signal intelligent control system based on image processing, comprising a CCD image sensor 3, the CCD image sensor 3 is connected to a signal controller 1 via an image processor 2, and the signal controller 1 is connected to a traffic signal light 4 and a digital display tube 5; CCD image sensor 3 photographs the queuing situation of vehicles in each lane, and after image processor 2 binarization processing, it is sent to signal controller 1 for processing; signal controller 1 sends instructions to control after analyzing and processing the read data. Traffic signal lights 4 lighting changes and digital display tube 5 time countdown display.

Embodiment 2

[0029] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the special features are as follows: see figure 2 , figure 2 It is a hardware layout diagram of the traffic signal intelligent control system for an intersection. figure 2 In the four directions of east, west, north, south, there are the same layout. according to Figure 4 Realize intelligent control of workflow. For a clearer description, take the E direction as an example here, and CCD1(3) is responsible for photographing the vehicle queuing situation. The collected data is sent back to the image processor 3 for binarization processing. The processed binary data is sent to the signal controller 1, and the signal controller 1 compares the signal with the vehicle queuing length captured by other CCD image sensors. If the queue is the longest, the green light for E turning left and the green light for going straight will be turned on synchronously, which ensures the principle that two lanes ...

Embodiment 3

[0031] Embodiment three: see Figure 4 , the traffic signal intelligent control method based on image processing, using the above-mentioned system for control, is characterized in that: Considering that the traffic flow varies greatly in different periods—holidays and rush hours, the lighting cycle is divided into three levels : short cycle, medium cycle, long cycle, the cycle time is determined by experience, among them, the short cycle of the traffic light cycle is the shortest, which is suitable for the situation where the traffic flow is scarce, and the length of the fleet is not very long; the long cycle is the longest, suitable for vehicles In the case of heavy traffic, the length of the fleet is longer; each cycle corresponds to a traffic light lighting time; the specific operation steps are:

[0032] 1. Start 4 CCD image sensors 3 located in 4 directions to take pictures of the traffic flow in each lane, and the collected information of the CCD image sensors 3 is sent ...

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Abstract

The invention relates to a traffic signal intelligent control system and method based on image processing. The system comprises a CCD image sensor, wherein the CCD image sensor is connected with a signal processor through an image processor, and a signal controller is connected with a traffic light and a digital display. The control method of the intelligent control system is to analyze the traffic flow according to the road conditions shot by the image sensor and automatically optimize and adjust the signal phase of the traffic light, thus greatly increasing road capacity, alleviating traffic jams and reducing waiting time. The intelligent control system and method have the advantages of high reliability, real time, convenient maintenance and the like, thus the system and method can increase the intelligent control level of urban traffic and have wider practical application prospect.

Description

technical field [0001] The invention relates to a traffic signal intelligent control system and method based on image processing. The control method of the intelligent control system is to analyze the traffic flow according to the road conditions captured by the image sensor, and automatically optimize and adjust the lighting time of the traffic lights, thereby greatly improving the road capacity, alleviating traffic congestion, and saving waiting time. The intelligent control system and method have the advantages of high reliability, good real-time performance, convenient maintenance, etc., can improve the level of urban traffic intelligent control, and have great practical application prospects. Background technique [0002] With the improvement of people's living standards in our country, various vehicles in cities, such as taxis and private cars, have increased sharply, so that the construction speed of urban transportation infrastructure cannot keep up with the rapidly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/08G08G1/096H04N5/335
Inventor 董金秋蒋蓁彭为
Owner SHANGHAI UNIV
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