Communication type road traffic signal countdown display

A traffic signal and countdown technology, applied in the direction of road vehicle traffic control system, traffic control system, instruments, etc., can solve the problems of no equipment status, single display function of countdown timer, unable to maintain equipment, etc., to achieve convenient discovery, equipment environment and so on. The effect of strong adaptability and prolonging service life

Active Publication Date: 2013-02-20
JIANGSU AEROSPACE DAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0003] Since the current countdown timer can only be used for "fixed cycle" traffic signal control, once the timing scheme of the signal light changes in real time, the countdown timer still displays the timing scheme of the previous cycle, and the time when the signal light appears and the time displayed by the countdown cannot be synchronized
At present, the countdown timer only has a single display fun

Method used

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  • Communication type road traffic signal countdown display
  • Communication type road traffic signal countdown display
  • Communication type road traffic signal countdown display

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Embodiment Construction

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] like figure 1 As shown, the present invention uses a communication line (such as RS485 serial interface) to connect the signal machine and each countdown display respectively; such as figure 2 As shown, the communication type road traffic signal countdown display of the present invention includes: a communication module, a microcontroller, a DIP switch, a constant current drive module, a fault detection module, a signal countdown display panel and a power supply module. The communication module communicates with the signal machine and sends data to the microcontroller, and the microcontroller is connected to the signal countdown display panel through the constant current drive module and the fault detection module respectively. The signal countdown display panel is a 7-segment digital display panel, and each number is a group of LED light groups....

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Abstract

The invention discloses a communication type road traffic signal countdown display which comprises a microcontroller, a communication module, a constant current driving module, a fault detection module and a signal countdown display panel. The microcontroller is connected with the communication module and connected to the signal countdown display panel through the fault detection module and the constant current driving module, and the communication module is connected with a signal machine through a communication line. The communication type road traffic signal countdown display has the advantage that only one group of communication lines is needed during implementation to totally solve the problem that signal lamps and a countdown timer cannot be real-time and synchronous and provides technical support for variable period and self-adaptation of signal machines in large and medium-sized cities in the aspect of display.

Description

technical field [0001] The invention relates to a communication-type road traffic signal countdown display, which belongs to the technical field of traffic signal control. Background technique [0002] In recent years, with the development of China's economy, the number of urban vehicles has increased sharply, and the problem of urban traffic congestion has become an urgent problem to be solved. Urban development has higher and higher requirements for road traffic. The research and development of intelligent transportation systems is the solution. One of the main ways to solve this problem is that the "variable period" and "adaptive" signals of modern traffic in large and medium cities have greatly improved the efficiency of road traffic. [0003] Since the current countdown timer can only be used for "fixed period" traffic signal control, once the timing scheme of the signal light changes in real time, the countdown timer still displays the timing scheme of the previous cyc...

Claims

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Application Information

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IPC IPC(8): G08G1/096
Inventor 周勋吕显刚顾善忠李旭东包可为
Owner JIANGSU AEROSPACE DAWEI TECH CO LTD
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