中文摘要：

随着网络技术的发展，网络化控制系统日益成为人们关注的课题，特别是目前工业以太网所取得的进展引起人们广泛兴趣。介绍了网络化控制系统的发展过程，在综述网络化控制系统研究现状的基础上，对网络化控制系统的建模、状态估计、信息时延、调度算法、通信约束等方面进行了深入分析，并对其中的建模、网络信息调度的最优化、网络环境下控制理论研究、应用研究等方面的未来发展作了展望。

英文摘要：

With the rapid development of the network technology, networked control systems （NCS）are paid more and more attention. The development of the NCS systems is introduced firstly. It should be noted that more and more researchers pay close attention to the progress of Industrial Ethemet. On the basis of the synthetically description of the research progress and presence of networked control systems, the related system modeling, state estimate, information time-delay, scheduling, communication constraints are analyzed in detail, and its prospects in the future are proposed also.