摘要
现场总线协议的实时性是评价总线性能的关键因素。该文根据PROFIBUS令牌总线协议原理,利用离散时间休假排队理论,建立了一个具有时间限量DMAP/M/1休假排队模型,然后对该模型进行了详尽的分析,求出了响应等待时间的数学表达式,给出了仿真结果。该文的研究为分析和优化令牌总线协议提供了理论依据。
The real time parameter is a key point of protocol＇s performance evaluation. In this paper, a discrete -time DMAP/M/1 queueing model with vacations and time -limited service is built based on the principle of PROFIBUS protocol. An equation to evaluate the average waiting time in the model is derived and simulation result is given. This theory has potential applications in PROFIBUS design.
出处
《工业仪表与自动化装置》
2009年第3期3-6,共4页
Industrial Instrumentation & Automation
基金
国家自然科学基金资助项目(10671170)
