| 基于CAN总线的交通信号控制节点设计 |
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| 引用本文： | 李伟,张长元. 基于CAN总线的交通信号控制节点设计[J]. 微计算机信息, 2007, 23(35): 14-16 |
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| 作者姓名： | 李伟 张长元 |
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| 作者单位： | 重庆交通大学计算机与信息学院,重庆,400074 |
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| 基金项目： | 重庆市自然科学基金资助项目（编号：2006BB2423） |
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| 摘 要： | 交通信号机作为一种重要交通信号装置，对于提高道路通行能力，减少交通事故有明显效果。随着智能交通技术的发展，构建现场总线标准的交通信号控制节点显得很有必要，围绕符合CAN总线标准的交通信号控制节点设计．讨论了基于AT89C51单片机控制的交通信号控制节点的工作原理及其硬件电路设计，给出了CAN总线通信协议和通信流程．使监控站能够有效地通过CAN接口控制交通信号控制节点的工作状态。
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| 关 键 词： | CAN总线 交通 现场总线 |
| 文章编号： | 1008-0570（2007）12-2-0014-03 |
| 收稿时间： | 2007-09-13 |
| 修稿时间： | 2007-11-15 |
Design of Traffic Signal Control Node Base on CAN BUS |
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| LI WEI,ZHANG CHANGYUAN. Design of Traffic Signal Control Node Base on CAN BUS[J]. Control & Automation, 2007, 23(35): 14-16 |
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| Authors: | LI WEI ZHANG CHANGYUAN |
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| Abstract: | The traffic signal control machine, as a kind traffic signal equipment, plays a important role in improving the traffic capacity of the road and cutting clown a traffic accident. With the development of the intelligent traffic, it is very import to construct a kind of traffic signal control node based on the field bus technology, so, the work theory and its hardware electric circuit of a traffic signal control node based on AT89C51 is discussed, its CAN communication protocol and flow are pointed out, with this, the monitor and control node can effectively controls all traffic nodes by the CAN interface. |
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| Keywords: | CAN BUS Traffic Field-Bus |
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