For the linear discrete networked control system (NCS) which may suffer DoS attack on both sides of the controller, when the actuator has time-varying failure, the intelligent sensor unit uses wireless sensors to collect data. According to the large amount of data collected, the active fault tolerance/active passive capacity of linear discrete NCS under the discrete event-triggered communication mechanism (DETCS) is studied. The problem of cooperative controller design is discussed. Firstly, a linear discrete NCS model integrating DETCS, actuator fault, and network attack is established. Then, based on the idea of integral sliding mode control, an active fault-tolerant/attack active passive intrusion-tolerant cooperative controller is designed, and the actuator attack side network attack and sensor side network attack are extended to the state to obtain a new state vector. Then, an adaptive Kalman filter estimator (AKF) estimates the fault and attack information and then adjusts the initial fault-tolerant/intrusion-tolerant cooperative controller in real time according to the estimated information obtained by the adaptive Kalman filter estimator; finally, the MATLAB simulation example is used to verify the improvement of system performance by the designed control law and the saving of network resources by the introduction of DETCS.

中文翻译：

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大数据背景下离散NCS的主动容错/主动被动入侵容忍协同控制

对于控制器两侧可能遭受DoS攻击的线性离散网络控制系统（NCS），当执行器出现时变故障时，智能传感器单元使用无线传感器采集数据。根据收集到的大量数据，研究了离散事件触发通信机制（DETCS）下线性离散NCS的主动容错/主动被动能力。讨论了协同控制器设计的问题。首先，建立了一个集成DETCS、执行器故障和网络攻击的线性离散NCS模型。然后，基于积分滑模控制的思想，设计了一种主动容错/攻击主动被动入侵容忍协作控制器，并将执行器攻击侧网络攻击和传感器侧网络攻击扩展到状态以获得新的状态向量。然后，自适应卡尔曼滤波器估计器（AKF）估计故障和攻击信息，然后根据自适应卡尔曼滤波器估计器获得的估计信息实时调整初始容错/入侵协作控制器；最后，通过MATLAB仿真实例验证了设计的控制律对系统性能的提高和DETCS的引入对网络资源的节省。自适应卡尔曼滤波器估计器(AKF)估计故障和攻击信息，然后根据自适应卡尔曼滤波器估计器得到的估计信息实时调整初始容错/入侵协作控制器；最后，通过MATLAB仿真实例验证了设计的控制律对系统性能的提高和DETCS的引入对网络资源的节省。自适应卡尔曼滤波器估计器(AKF)估计故障和攻击信息，然后根据自适应卡尔曼滤波器估计器得到的估计信息实时调整初始容错/入侵协作控制器；最后，通过MATLAB仿真实例验证了设计的控制律对系统性能的提高和DETCS的引入对网络资源的节省。