论文部分内容阅读
交换式工业以太网应用于工业控制领域,实现了工业一体化网络控制,但其实时性问题一直是阻碍其大规模应用的主要因素,在对交换式工业以太网中传输时延因素分析的基础上,得出了排队时延是影响网络确定性的主要因素。为此采用了确定性网络演算理论对其实时性进行了分析和研究,结合极小加代数下的到达曲线和服务曲线的概念,针对特定的混合队列调度模型,在树形拓扑结构的交换式以太网的基础上计算了其业务流端到端的传输时延上限。
Switched Industrial Ethernet used in industrial control field, the realization of industrial integrated network control, but its real-time issues have been a major factor hindering its large-scale application, the transmission of industrial Ethernet transmission delay factor analysis based It is concluded that the queuing delay is the main factor that affects network certainty. In this paper, deterministic network calculus theory is used to analyze and study its real-time performance. Combining with the notion of arrival curve and service curve under minimal algebra, aiming at a specific hybrid queue scheduling model, Ethernet based on the calculation of its business end-to-end transmission delay limit.