为提高水电厂监控系统性能,本文研究提出了水电厂监控系统新型通信模型.论文基于以太网的开放系统互联参考模型OSI(Open Systems Interconnection Reference Model)架构,分析了目前水电厂监控系统普遍采用单播和广播相结合的以太网通信的优点和不足,分析了传输控制协议TCP(Transmission Control Protocol)模型架构和报文发送、握手连接及断开连接过程,阐述了用户数据报协议UDP(User Datagram Protocol)网络模型的特点,提出了改进UDP网络协议安全性的措施.本文系统对比分析了单播、组播和广播网络信息传输模型的特点,探讨了单播、组播和广播网络信息传送模型与TCP和UDP相结合的以太网网络通信模型的特点.基于对TCP网络协议模型在广播中的可靠性与实时性研究,本文提出了一种UDP与IP组播技术相结合的新型水电厂计算机监控系统网络通信模型,可大幅提高监控系统通信实时性和可靠性,并通过实际工程应用案例进行验证和分析,为水电厂计算机监控系统通信模型建立提供新的选择,具有巨大的应用前景和推广价值.
Research on the application of UDP protocol and IP multicast communication model in hydropower plant supervision and control systems
To improve the performance of the supervision and control system for hydropower plants,this paper de-veloped successfully an innovative communication model.Based on the Open Systems Interconnection(OSI)refer-ence model for Ethernet,the paper analyzed the advantage and the limitation of unicast and broadcast Ethernet communication methods currently used in hydropower plant supervision and control systems,investigated the Trans-mission Control Protocol(TCP)model including packet transmission,handshake connection,and disconnection processes,explained the characteristics of the User Datagram Protocol(UDP)model,and proposed measures to enhance its security.Furthermore,by a systematic comparison and analysis of unicast,multicast,and broadcast network information transmission models,the paper delved into the characteristics of the Ethernet network commu-nication model that integrates the unicast,multicast,and broadcast network information transmission models with TCP and UDP.Based on the investigation of the reliability and real-time performance of TCP in broadcasting,a novel network communication model that combines UDP and IP multicast for the hydropower plant computer super-vision and control system has been proposed.This model can significantly enhance the real-time performance and reliability of the communication of supervision and control systems and,through the verification and analysis of practical engineering applications,offer a new option for communication model of computer supervision and control system for hydropower plant.The new model demonstrates substantial application potential and value for widespread adoption.
communication protocolTCPUDPbroadcastingmulticastunicastsupervision and control system
万方数据
维普
