| 计算机联锁系统的可靠性和安全性比较 |
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| 引用本文： | 马小玲,张友鹏,杜求茂,郑伟.计算机联锁系统的可靠性和安全性比较[J].铁路计算机应用,2009,18(6):46-49. |
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| 作者姓名： | 马小玲 张友鹏 杜求茂 郑伟 |
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| 作者单位： | 兰州交通大学,自动化与电气工程学院,兰州,730070 |
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| 摘 要： | 可靠性和安全性是计算机联锁系统的重要性能指标.本文在考虑了故障覆盖率及维修率的情况下,建立了三取二和二乘二取二计算机联锁系统的马尔可夫模型.利用MATLAB仿真功能计算了两系统的可靠度和安全度,并给出了相关时间曲线.通过分析比较,得出故障检测率对两系统可靠度和安全度有较大影响,且二乘二取二比三取二系统具有更高可靠性和安全性.
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| 关 键 词： | 计算机联锁系统 可靠性 安全性 比较 |
| 收稿时间： | 2009-06-15 |
Comparing of reliability and security with Computer-based Interlocking System multiplying model |
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| MA Xiao-ling,ZHANG You-peng,DU Qiu-mao,ZHENG Wei.Comparing of reliability and security with Computer-based Interlocking System multiplying model[J].Railway Computer Application,2009,18(6):46-49. |
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| Authors: | MA Xiao-ling ZHANG You-peng DU Qiu-mao ZHENG Wei |
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| Institution: | ( School of Automatization ＆ Electric Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China ) |
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| Abstract: | Reliability and safety were key properties of the Computer-based Interlocking System. The Markov model of the two systems were set up with considering maintenance rate and faulty coverage ratio. Then, the reliability and security of the two systems were simulated and computed with Matlab. It was showed that faulty coverage ratio had a greater impact on reliability and safety of the two systems ,and 2-out-of-2 multiplying＇s reliability and safety were better than the System of 2- out-of-3. |
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| Keywords: | Computer-based Interlocking System reliability safety comparing |
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