基于数据流的Internet网络控制系统延时模型研究

Research on time-delay model for NCS based on data streams

在给出数据流定义的基础上,从理论上分别针对传输控制协议(TCP)和用户数据包协议(UDP)提出了基于数据流的Internet网络控制系统(INCS)延时模型.数据流的定义描述了INCS中所有数据流的输入和输出特性,网络延时模型描述了TCP和UDP协议的传输延时特性.此外,提出了基于Transit-Stub的INCS延时测量模型,并通过实验验证了基于数据流的INCS延时模型的正确性.分析了INCS中不同类型的数据流适用的传输协议,从而为设计INCS提供了理论依据.

The definition of data stream is given,based on which the time-delay model for Internet network control system（INCS） is proposed theoretically for both TCP and UDP protocol.The definition of data stream describs the input characteristics and output charactersitics for all the data streams.The time-delay model describes the time-delay characteristics for TCP and UDP protocol.The time-delay measurement model for INCS is proposed based on Transit-Stub.Experiment results show the validity of time-delay model.As a result,theoretical basis is provided for designing an INCS.