系统介绍了网络控制系统出现的背景和研究内容 ,综述了网络控制系统的研究现状。在本篇中 ,介绍了网络控制系统出现的背景 ,从网络的角度对网络控制系统的体系结构与协议、时延分析与网络调度、数据包传送与通信约束问题以及系统与信息集成等进行了讨论 The background and contents of network control system are introduced systematically, and the research status of network control system is reviewed. In this chapter, the background of network control system is introduced. The architecture and protocol of network control system, delay analysis and network scheduling, data packet transmission and communication constraints and system and information integration are introduced from the perspective of network discuss