| 计算机联锁系统CAN总线故障安全通信研究 |
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| 引用本文： | 马骉,王海峰.计算机联锁系统CAN总线故障安全通信研究[J].北京交通大学学报(自然科学版),2008,32(2):104-108. |
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| 作者姓名： | 马骉 王海峰 |
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| 作者单位： | 北京交通大学,电子信息工程学院,北京,100044;北京交通大学,电子信息工程学院,北京,100044 |
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| 摘 要： | 基于CAN总线技术在联锁系统中的应用,研究了故障-安全通信实现方法.通过分析计算机联锁系统对通信网络的安全需求,得出故障-安全通信的充要条件是传输链路的生存性、信息传输的完整性、实时性和可测性;给出了一种基于容错拓扑结构和报文差错控制编码的CAN总线故障-安全通信解决方案.经过功能测试和理论计算,该方案满足故障-安全的设计原则,传输性能达到了计算机联锁系统的要求.
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| 关 键 词： | 计算机联锁系统 CAN总线 故障.安全 通信 |
| 文章编号： | 1673-0291(2008)02-0104-05 |
| 修稿时间： | 2007年5月28日 |
Research on CAN Bus Fail-Safe Communication of Computer-Based Interlocking System |
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| MA Biao,WANG Haifeng.Research on CAN Bus Fail-Safe Communication of Computer-Based Interlocking System[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2008,32(2):104-108. |
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| Authors: | MA Biao WANG Haifeng |
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| Abstract: | Based on the application of CAN bus technology in the computer-based interlocking system,this paper researches how to realize fail-safe communication.This paper analyzes the safety requirements of the communication network that the computer-interlocking system need,educes that the sufficient and necessary condition of fail-safe communication is transmission link survivability,information transmission integrity,real-time,testability.and gives a solution,which adopts system fault tolerance,packets error control codes,to realize CAN bus fail-safe communication,The results from function testing and theoretics calculation show that the design corresponds to fail-safe principle,the safety of systemin reaching the computer-based interlocking system requirements. |
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| Keywords: | computer-based interlocking system CAN bus fail-safe communication |
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