对非周期信息的实时评价与改进

IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468) Pub Date : 2003-11-02 DOI:10.1109/IECON.2003.1280089

Zhi Wang, Shanbin Li, Yeqiong Song, Tian-ran Wang, Youxian Sun

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引用次数: 2

摘要

本文研究了如何利用基金会现场总线(FF)支持重要非周期性消息的实时传输。对非周期消息的综合最坏情况响应时间(WCRT)分析表明，尽管FF提供了PT (Pass Token)优先级和PT轮换周期等机制，但FF并不能有效保证重要非周期消息的实时流量。在找出现有机构存在不足的原因后，提出了一种改进的机构，并进行了仿真验证。此外，本文还提出了一些结论，如正在进行的工作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Realtime evaluation and improvement of FF on aperiodic messages

How to support real-time traffic of important aperiodic messages using Foundation Fieldbus (FF) is investigated in this paper. An integrated worst-case response time (WCRT) analysis of aperiodic message indicates FF can't effectively guarantee real-time traffic of important aperiodic message despite FF providing such mechanisms as PT (Pass Token) priority and PT rotation period, etc. After finding the cause of current mechanism' deficiency, an improved mechanism proposed and validated with simulation in this paper. Further, some conclusions such as ongoing work are provided in this paper.

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IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468)

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