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CAN-bus-based distributed signal control system

A CAN bus and signal control technology, applied in the field of intelligent transportation technology and signal control, can solve problems such as troublesome and poor scalability, and achieve the effects of high flexibility, high real-time performance, and simple and reliable communication lines

Inactive Publication Date: 2017-09-15
深圳市哈工交通电子有限公司
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Problems solved by technology

If you need to add detector devices or increase the number of signal lights in subsequent applications, it will become very troublesome, and you need to add and lay lines again, resulting in poor scalability

Method used

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  • CAN-bus-based distributed signal control system
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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] In the embodiment of the distributed signal control system based on the CAN bus of the present invention, the structural diagram of the distributed signal control system based on the CAN bus is as follows figure 1 shown. figure 1 Among them, the CAN bus-based distributed signal control system includes a main control unit 1 and several direction sub-control areas 2, each direction sub-control area 2 corresponds to a different direction, and each directio...

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Abstract

The invention discloses a distributed signal control system based on CAN bus, which includes a main control unit and several direction sub-control areas, each direction sub-control area includes a direction sub-control unit and several signal light control units, the signal light control unit Including several lane signal light units and corresponding pedestrian signal light units, the main control unit generates the intersection signal light control scheme and transmits it to each direction sub-control unit through the CAN bus, and each direction sub-control unit is connected to the corresponding signal light control unit through the CAN bus , the direction sub-control unit analyzes the intersection signal light control scheme, and sends the analysis result to the corresponding signal light control unit through the CAN bus, and the signal light control unit controls the state of the signal light according to the control scheme. The communication line of the invention is simple and reliable, can simplify construction difficulty and reduce construction cost, improve reliability and simplify follow-up maintenance difficulty, have good expansibility, and improve the intelligence level of the traffic signal control system.

Description

technical field [0001] The invention relates to the field of intelligent traffic technology and signal control, in particular to a distributed signal control system based on CAN bus. Background technique [0002] At present, the existing domestic traffic signal controllers are basically centralized control, that is to say, the signal controller and the signal lamp are controlled by 220V voltage, and a large number of cables are needed between each intersection signal lamp and the signal controller. , so whether it is installation or construction, pipeline wiring is very complicated, requiring a large number of cables, a large amount of engineering, high difficulty in construction, a greater impact on surrounding facilities, high engineering costs, difficult maintenance, and low system reliability. . [0003] In addition, most of the current signal control machines use multi-period fixed cycle, and some signal control machines use inductive control schemes. The multi-period...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07
CPCG08G1/07
Inventor 曹泉何小晨李豪万海明付林峰刘绍兵
Owner 深圳市哈工交通电子有限公司
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