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在控制网络中使用数据网络已经引起了广泛关注.如何处理网络诱导时延对网络控制系统的影响已经成为了网络控制系统的主要挑战.介绍了网络控制系统的概念,分析了网络控制系统的优缺点,探讨了网络诱导时延的组成、特点以及对网络控制系统的影响并给出了仿真结果,最后提出了未来可能的研究方向.“,”The use of a data network in a control loop has gained increasing attentions in recent years due to its cost effective and flexible applications. One of the major challenges in networked control systems (NCS) is the effect of network-induced delays. Concept and configuration of an NCS were firstly provided. Then characteristics and effect of network delays were formulated, and diagrams of simulation were given. Finally, the future promising research directions were pointed out.