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基于网络演算的树形交换式工业以太网实时性研究 被引量：3

Research of Real-time Performance of Switched Industrial Network with Tree Topology Based on Network Calculus
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摘要 树形交换式以太网已成为工业上构建网络的重要选择之一,其实时性能否得到保证是系统性能能否得到保障的关键因素;针对一个多级树形交换式以太网架构的数据采集系统,用网络演算作为理论工具,结合分析交换机的工作方式,详细地对网络的延时指标进行了推导;并通过计算出的网络最大延时与网络最小发包间隔的比较,对系统评估,网络构建,资源配置等提出了参考建议。 Switched Ethernet with tree topology is becoming one of important choices in designing industrial network. It is a key factor of guaranteeing the real--time performance of Ethernet in order to guarantee system stability. Considering a data acquisition system based on switched Ethernet with multilevel tree topology, latency index is derived from using network calculus and analyzing the working mode of switches. Especially, after comparing the calculated maximum delay and the minimum of the packet gap, some suggestions are given to help assessing system, constructing network and configuring resources.
作者 许乔 张元凯 蔡惠智
机构地区 中国科学院声学研究所 北京中科海讯数字信号处理技术有限公司
出处 《计算机测量与控制》 北大核心 2013年第12期3368-3370,共3页 Computer Measurement &Control
关键词 网络演算 树形拓扑 交换式以太网 实时性 network calculus tree topology switched ethernet real time performance
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献8

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二级参考文献5

共引文献7

同被引文献33

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计算机测量与控制
2013年 第12期

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