DSP intelligent traffic light control system

A traffic light control and intelligent technology, applied in traffic control systems, road vehicle traffic control systems, traffic signal control and other directions, can solve the problems of restricting the popularization and application of traffic signal intelligent control systems, complex structure, poor stability, etc., to achieve performance Improved, simplified control circuit, cost-effective effects

Inactive Publication Date: 2007-11-28
宝鸡市公安局交通警察支队
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Problems solved by technology

Not only poor stability, complex structure, but also high cost, which greatly l

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  • DSP intelligent traffic light control system
  • DSP intelligent traffic light control system

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Embodiment Construction

[0021] Accompanying drawing 1 and 2 have provided the specific embodiment of the present invention. The core of the present invention is to design the latest intelligent traffic signal control system based on the DSP chip for the first time, as shown in Figure 1, the system is composed of image data acquisition unit (1), DSP analysis and processing system (2), I / O Expansion unit (3), signal drive array (4), and signal lamp display (5) are composed of five parts and are realized according to the following steps:

[0022] (1) Use video sensors to collect static vehicle information at intersections;

[0023] (2) The collected CCD information is directly sent to the DSP video input terminal for conversion, analysis and processing;

[0024] (3) Send the converted static vehicle quantity and vehicle lane length information list into the I / O expansion circuit for expansion to meet the control needs;

[0025] (4) After the expanded I / O output is amplified by the drive array, it is o...

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Abstract

The invention discloses a digital signal processing 'intelligent red-green lamp control system' to adopt DSP chip finish the conversion of image A/D, analysis of disposal of image, real-time image display and time sequence control, which comprises the following parts: image data gathering circuit, DSP analytical processing system, I/O extending unit, driving array, signal lamp display device, wherein the DSP analytical processing system contains image A/D conversion, image analysis and disposal, real-time image display and time sequence control, which resolves the statical image signal into specific quantity or statical vehicle occupying length and gives corresponding green lamp time according to different vehicle quantity. The invention adopts DSP technique to finish intelligent red-green lamp control in the traffic control domain, which paves good technical base for developing and applying intelligent red-green lamp control and ITS.

Description

Technical field: [0001] The invention belongs to the technical field of urban road traffic control. Specifically, it is a DSP intelligent traffic light control system that can give the length of the green light according to the number of static vehicles at each intersection. Background technique [0002] With the development and growth of the automobile industry, the phenomenon of urban traffic congestion is relatively serious, which puts forward higher requirements for the modern management and modern control of road traffic. Over the years, traffic signal control has changed from discrete components to small-scale integrated circuits, single-board computers, single-chip computers, microcomputers, and portable computers. With the rapid development of the electronics industry and the needs of informatization construction, the requirements for intelligent control of road traffic lights are getting higher and higher. From single-point intelligent control to single-point clust...

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Application Information

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IPC IPC(8): G08G1/07G08G1/01G08G1/096
Inventor 支录奎雷钊张毅
Owner 宝鸡市公安局交通警察支队
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