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一种增强PROFIBUS总线实时通信能力的综合方法 被引量:11

A Holistic Method to Enhance Real-time Communication for PROFIBUS
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摘要 针对PROFIBUS实时可调度性分析的现有结果仅考虑任务截至期而没有考虑次序关系的缺陷,建立了新的基于图论综合分析方法。采用图论描述次序关系和构造合理的令牌环,并根据运行结果动态调整令牌环顺序、减少系统的总延迟。通过解析分析和实例验证了所提出的新方法。 As one of European standard(EN5070), PROFIBUS is based on a simplified TTP(time-triggered protocol )and is a well welcome fieldbus to guarantee real-time communication for industrial application. The deficiency of present shedulability on token rotation time, never related to the sequence of token rotation that controls the slots for message response in master stations. Based on the character of industrial application, a holistic schedulability using graph theory is given, and a method is described to improve the temporal function of PROFIBUS.
出处 《仪器仪表学报》 EI CAS CSCD 北大核心 2005年第8期790-796,共7页 Chinese Journal of Scientific Instrument
基金 国家自然科学基金资助项目(60084001 60203030) 中法先进研究计划合作项目(PRASI01-04)。
关键词 PROFIBUS TTP协议 可调度性 分布式令牌 令牌运行周期 图论 总延迟 PROFIBUS TTP shedulability Distributed token Token rotation time Master stations Graph theory
作者简介 范兴刚 1974年生 男 博士 主要研究方向为网络通信和交换式以太网与无线网络的实时特性及QoS问题等.
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参考文献15

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