针对具有Lipschitz非线性时滞的网络化控制系统,研究系统具有丢包和通讯约束的故障检测问题.利用线性矩阵不等式设计故障检测滤波器,提出一种新的阈值计算方法,使得当系统在外部干扰情况下发生故障时残差评价函数能够迅速超出所设定的阈值,从而检测出执行器故障并使残差误差最小.最后通过仿真研究验证了所提出的方法能够更快速地检测出故障. Aiming at the networked control system with Lipschitz nonlinear delay, the problem of system fault detection with packet loss and communication constraints is studied. A new threshold calculation method is proposed by using linear matrix inequality (LMI) to design a fault detection filter. When the system is outside In the case of disturbance, the residual evaluation function can quickly exceed the set threshold to detect the actuator fault and minimize the residual error.Finally, the simulation results show that the proposed method can detect the fault more quickly.