English

应用科学学报 ›› 2001, Vol. 19 ›› Issue (4): 322-326.

• 论文 • 上一篇    下一篇

光纤工业网络中实时数据传输方法的研究

黄海峰, 孙小菡, 张明德, 丁东   

  1. 东南大学电子工程系, 江苏南京 210096
  • 收稿日期:2000-05-17 修回日期:2000-11-24 出版日期:2001-12-31 发布日期:2001-12-31
  • 作者简介:黄海峰(1969-),男,江苏苏州人,博士生;孙小菡(1955-),女,安徽合肥人,教授,博导;张明德(1939-),男,上海人,教授,博导.
  • 基金资助:
    国家重点科技攻关项目(85-720-22-01)

The Study of Real-time Data Transfer Method in Fiber-optic Industry Network

HUANG Hai-feng, SUN Xiao-han, ZHANG Ming-de, DING Dong   

  1. Department of Electronic Engineering, Southeast University, Nanjing 210096, China
  • Received:2000-05-17 Revised:2000-11-24 Online:2001-12-31 Published:2001-12-31

PDF

89

摘要： 基于以太网的光纤工业网络有多种数据类型需要传输,为保证网络各站点间各类数据通信的实时性,提出在网络应用层建立混合工作模式的传输方案,依据非抢占式M/M/1排队模型,采用等待时间和任务数作为性能参数,确立了在优先级模式下多级别任务排队模型.提出并讨论了优先级协议(PTP)的工作机理和实现方法,最后分析了在各类条件下优先级工作模式的性能参数和运行结果.

关键词: 工业监控, 排队论, 网络, 实时数据传输

Abstract: Multimedia fiber optic industrial network (FIN) based on fast ethernet includes several types of data, such as alert data, control data and multimedia video signals, and each station of the industrial network must meet the demand of real-time transferring. This paper offers a hybrid mode transfer scheme based on the network application layer. According to the non-preemptive M/M/1 queuing model, waiting-time and system task number are used as parameters. A multi-task queuing model with the priority mode in the industrial network is established. The transferring mechanism and realizing method of priority transfer protocol (PTP) are founded and discussed. Lastly, the performance parameters and running results of the hybrid model are analyzed in different environments.

Key words: queuing system, network, industrial control and monitor system, real-time data transfer

中图分类号: