中文摘要：

利用平均驻留时间方法对基于模型的网络控制系统（model-based networked control system,MBNCS）进行了研究。MB-NCS由于能够在保证系统性能的前提下有效地减少系统对网络带宽的占用,自提出以来就受到了学者的广泛关注。首先总结了网络控制系统中常用的几种减少网络带宽占用的策略;其次,将基于模型的网络控制系统建模为切换系统,并在所建立的切换系统模型的基础上,利用平均驻留时间方法给出了使得此切换系统稳定的充分条件;最后,借助Lyapunov稳定性理论和线性矩阵不等式（linear matrix inequality,LMI）方法设计了使得此系统稳定的控制器,并且通过仿真验证了所提出方法的有效性。

英文摘要：

The model-based networked control system（MB-NCS）is investigated by the average dwell time approach.The MB-NCS has attracted extensive attention of scholars since it is proposed,due to its capacity of reducing the usage of network bandwidth on the premise of guarantying the system performance.Firstly,several usually used strategies for reducing the usage of network bandwidth in networked control systems are summarized.Secondly,the MB-NCS is modeled as a switched system,and the sufficient condition is given by using the average dwell time approach based on the switched model.Finally,the stabilizing controller is designed with the Lyapunov stability theory and linear matrix inequality（LMI）method.A simulation demonstrates the effectiveness of the proposed scheme.