基于因特网的远程控制中网络延时特性分析

采用基于TCP/IP协议的因特网作为信息传递手段的远程控制系统可以实现在任何时间、任何地点对连入因特网内任何节点的设备进行控制的目的。然而实验表明,在因特网信息的传递过程中将产生较大的延时并有一定的延时不确定性,这将使整个系统的控制品质严重变坏,是影响基于因特网远程控制技术发展的一大瓶颈问题。该文主要针对延时特性及其产生的原因进行了深入的分析,继而得到一定的规律性,为后续建立英特网延时仿真试验平台的研究工作打下一定的基础。

Analysis of Network Time-delay Property in Internet-based Telecontrol System

Using Internet based on TCP/IP protocol as the method of data transmission,the telecontrol system can realize the dream of controlling any device at the node of Internet at any time and in any place.However the experiments prove that there is certain network time-delay in the process of data transmission and the time-delay has the property of uncertainty.The time -delay and its uncertainty property which will worsen the performance of the telecontrol system is a big problem stunting the development of Internet-based telecontrol technology.This paper makes a deep analysis of the problem and the reasons of its existing,furthermore,explores the rules of the network time-delay which will be great helpful to the research following.