一种工业通信实时调度算法

2009 IEEE International Conference on Intelligent Computing and Intelligent Systems Pub Date : 2009-12-28 DOI:10.1109/ICICISYS.2009.5357836

M. Tan, Zhen Wei

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引用次数: 2

摘要

为了克服交换以太网在工业通信中不能保证实时消息及时传递的缺点，提出了一种改进的灵活时间触发通信(Flexible Time- Triggered communication, FTT)模式，用于交换以太网中周期性消息的硬实时通信。此外，给出了周期消息可行性检验的优化条件。特别是，我们提出了一种基于edf的算法来调度周期性消息，以便在其截止日期内在以直通模式运行的COTS交换以太网上传输。仿真结果表明，所提出的实时调度算法在利用汇聚交换机吞吐量方面具有优势。

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A real-time scheduling algorithm for industrial communication

To overcome the drawback that switched Ethernet does not guarantee the timely delivery of real-time messages in industrial communication, an improved FTT (Flexible Time- Triggered communication) paradigm was proposed for hard real-time communications of periodic messages on switched Ethernet. In addition, an optimization condition for feasibility check of periodic messages was given. Particularly, we proposed an EDF-based algorithm to schedule periodic messages to be transmitted within their deadlines over COTS switched Ethernet running in the cut-through mode. Simulation results showed the advantages of the proposed real-time scheduling algorithm in terms of using the aggregated switch throughput.

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来源期刊

2009 IEEE International Conference on Intelligent Computing and Intelligent Systems

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