Real-time synchronized control method and system for no-protocol traffic lights and reverse-timing

A real-time synchronization and control system technology, which is applied in traffic control systems, road vehicle traffic control systems, traffic signal control, etc., can solve the problem that the countdown display cannot adapt to the "variable cycle self-adaptive" traffic signal control system, etc.

Inactive Publication Date: 2007-03-14
宝鸡市公安局交通警察支队
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Problems solved by technology

[0007] The purpose of the present invention is to provide a non-protocol traffic light and countdown real-time synchronous control method and system to solve the problem that the existing countdown display cannot adapt to the "variable cycle" and "adaptive" traffic signal control system, and realize the real-time synchronization of traffic lights and countdown control

Method used

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  • Real-time synchronized control method and system for no-protocol traffic lights and reverse-timing
  • Real-time synchronized control method and system for no-protocol traffic lights and reverse-timing
  • Real-time synchronized control method and system for no-protocol traffic lights and reverse-timing

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Embodiment Construction

[0029] Figures 1, 2, 3, 4, 5, and 6 show specific embodiments of the present invention. The control method and the system implementing the method will be described in detail below with reference to the accompanying drawings.

[0030] The real-time synchronization control method of traffic light and countdown without protocol is implemented according to the following steps:

[0031] The red, yellow, and green LED word stroke display lights form a seven-segment three-color large-screen countdown display. The two displays are side by side to form a ten-digit display and a single-digit display. The two three-color displays are composed of 42 control lines with 6×7 segment codes. In order to achieve the control requirements of this patent, 42 lines are combined into a two-digit three-color countdown timer. The 42 lines are combined in a logical combination. There are 17 control lines (see Figure 5) to realize the countdown synchronization display control in one direction, arrow lights ...

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Abstract

The no-protocol traffic light and counting-down real-time synchronous control method can real-time change the display time of counting-down device according to the periodical variation of traffic light to implement real-time synchronous control and display. This invention can overcomes defect in prior art without adding any wire, and benefit to the ITS realization in China.

Description

Technical field: [0001] The invention belongs to the technical field of high-speed real-time remote switch I / O synchronous control of urban road traffic signals, and specifically is a situation that can change in real time according to traffic information in a "variable period" and "adaptive" traffic signal light control system , The traffic lights and countdown display maintain high-speed real-time synchronization. Background technique: [0002] At present, the "signal countdown device" commonly used in urban traffic signal control, that is, the traffic signal countdown display device, is an auxiliary device used in conjunction with the traffic signal lamp to display the remaining time of the current signal control state to the motor vehicle driver. In the single-point fixed-period fixed timing control mode, the countdown display device can accurately display the remaining time of the current light color, which can prompt the driver to prepare in advance and pass the intersectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/096
Inventor 支录奎张魁武
Owner 宝鸡市公安局交通警察支队
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