EDA based traffic signal control system

A control system and traffic signal technology, applied in traffic control systems, traffic control systems of road vehicles, traffic signal control, etc., can solve the problems of large maintenance, poor reliability, and inability to adapt to the rapid development of urban road traffic, etc., and achieve improvement Reliability, effect of reducing structural complexity and maintenance

Inactive Publication Date: 2019-04-16
江西省高速公路联网管理中心
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Problems solved by technology

[0002] Most of the existing traffic signal control is implemented by relays or single-chip microcomputers, and the fuzzy control system that determines the timing of signal lights according to the front and rear phase flow, but the above-mentioned scheme has disadvantages such as complex structure, poor reliability, and large maintenance, and it is increasingly unable to adapt to urban roads. The requirements of the rapid development of transportation, based on the above problems, how to overcome the above problems has become a problem that needs to be solved urgently

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  • EDA based traffic signal control system
  • EDA based traffic signal control system
  • EDA based traffic signal control system

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[0041] As an implementation manner, the control system of the present invention also includes:

[0042] A clock generating circuit 6 is connected to the counting selection circuit 1, the countdown circuit 3 and the signal control circuit 2 respectively, and is used to generate a working clock signal of 250 Hz and a working clock signal with a period of 1 second according to an external input pulse signal , and the 250Hz working clock signal is sent to the counting selection circuit 1 and the signal control circuit 2 respectively, and the working clock signal with a period of 1 second is sent to the countdown circuit 3 and the signal control circuit 2 respectively .

[0043] As an implementation manner, the countdown display circuit of the present invention includes a countdown circuit 3 and a countdown display 4 , and the countdown display 4 is connected to the countdown circuit 3 .

[0044] As an implementation manner, the control system of the present invention also include...

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Abstract

The invention discloses an EDA based traffic signal control system, which comprises a counting selection circuit, a countdown display circuit, a signal control circuit and an LED display, wherein thecounting selection circuit determines the set counting time corresponding to a signal light state signal according to the signal light state signal; the countdown display circuit starts countdown display according to the set counting time, and the countdown display circuit is further used for generating a trigger signal when the countdown is over; the signal control circuit is used for generatinga signal light state signal according to the trigger signal; and the LED display displays the signal light state according to the signal light state signal. The traffic signal control system can realize the control for traffic signals only designing the counting selection circuit, the countdown display circuit, the signal control circuit and the LED display based on the EDA technology. Compared with a traffic signal light control circuit formed by a single-chip microcomputer and a relay, the traffic signal control system reduces the structural complexity and maintenance amount, improves the reliability and increasingly adapts to the requirements of rapid development of urban road traffic.

Description

technical field [0001] The invention relates to the technical field of traffic light control, in particular to an EDA-based traffic signal control system. Background technique [0002] Most of the existing traffic signal control is implemented by relays or single-chip microcomputers, and the fuzzy control system that determines the timing of signal lights according to the front and rear phase flow, but the above-mentioned scheme has the disadvantages of complex structure, poor reliability, and large maintenance, and it is increasingly unable to adapt to urban roads. The requirements of the rapid development of transportation, based on the above problems, how to overcome the above problems has become a problem that needs to be solved urgently. Contents of the invention [0003] The purpose of the present invention is to provide an EDA-based traffic signal control system to realize simplified circuit structure, reduced maintenance amount and improved reliability. [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/096
CPCG08G1/07G08G1/096
Inventor 陈钊正郭晓峰颜庆华王嫄嫄徐杰谢云驰谭政宇
Owner 江西省高速公路联网管理中心
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