控制器局域网中速率单调调度机制的利用率计算

Proceedings of 2010 IEEE International Conference on Vehicular Electronics and Safety Pub Date : 2010-07-15 DOI:10.1109/ICVES.2010.5550934

Peng Hao, Yang Shun

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引用次数: 1

摘要

硬实时调度机制的利用率对控制器局域网等实时系统的可调度性有重要影响。本文基于位元技术和帧的最大传输时间，证明了如果消息流的优先级按速率单调(Rate Monotonic, RM)策略分配，并且CAN请求的容量不超过30%，则满足所有消息流的时间期限。

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Computing utilization rate of Rate Monotonic scheduling mechanism in Controller Area Network

Utilization rate of hard real-time scheduling mechanism has an important effect on the schedulibility of real-time system like Controller Area Network. In this paper, based on the technique named bit-stuff and the maximum transmission time of frame we prove that if the priority of messages flow is allotted by Rate Monotonic (RM) policy and if requested capacity of CAN is not above 30% then time deadlines of all messages flow are met.

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Proceedings of 2010 IEEE International Conference on Vehicular Electronics and Safety

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