| 基于改进故障模型的CAN总线调度分析 |
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| 引用本文： | 吴晨,叶星踪,许化龙. 基于改进故障模型的CAN总线调度分析[J]. 电光与控制, 2010, 17(3) |
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| 作者姓名： | 吴晨 叶星踪 许化龙 |
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| 作者单位： | 1. 第二炮兵工程学院,西安,710025
2. 第二炮兵情报部,北京,100085 |
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| 摘 要： | 鉴于数据传输总线的诸多优点,建立总线式体制是现代导弹控制系统互联方式发展的必然趋势。CAN总线是一种设计优良的总线,但缺点在于其事件驱动型的协议导致无法建立CAN总线的可靠调度策略。Tindell给出的基于最小间隔故障模型的WCRT调度分析方法在强干扰环境中会导致乐观偏差,因此需要建立一种CAN总线在复杂环境中的更加准确的调度分析方法以指导可靠的系统设计。基于此目的,给出了一种基于广义泊松过程的改进故障模型,并在此基础上建立了CAN总线消息的调度分析。最后将该调度分析应用于导弹控制系统,并分析了对总线调度能力构成影响的因素。
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| 关 键 词： | 导弹控制系统 CAN总线 调度分析 泊松过程 故障模型 失败概率 |
A Scheduling Analysis of CAN Based on an Improved Fault Model and Its Application in Missile Control System |
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| WU Chen,YE Xingzong,XU Hualong. A Scheduling Analysis of CAN Based on an Improved Fault Model and Its Application in Missile Control System[J]. Electronics Optics & Control, 2010, 17(3) |
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| Authors: | WU Chen YE Xingzong XU Hualong |
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| Affiliation: | 1.The Second Artillery Engineering College;Xi'an 710025;China;2.The Second Artillery Intelligence Department;Beijing 100085;China |
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| Abstract: | Due to the advantages of data transmission bus,the bus-based framework is the trend of the interconnecting method of modern missile control system.CAN is a well-designed bus,whose defect lies in its event-driven communication protocol that brings great difficulties in finding a reliable scheduling scheme for CAN.The previous scheduling analysis of CAN presented by Tindell based on minimal-interval fault model,will lead to optimistic error especially in case of strong interference.So it is essential to estab... |
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| Keywords: | missile control system CAN bus scheduling analysis Poisson process fault model failure probability |
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