Double-terminal Asynchronous Adaptive Event-Triggered Control Based on State Observer

Abstract

For a class of networked control systems(NCS) with network-induced delays, an event-triggered control method for asymptotically stable systems is proposed based on state observer and double-terminal asynchronous adaptive event-triggered mechanism when the system state cannot be measured directly. Firstly, to further reduce the triggering frequency of event-triggered mechanism and improve the utilization of network resources, adaptive event-triggered mechanism is added to sensor and controller side respectively. Secondly, a state observer is added to the controller to reconstruct the state of the system and send it to the controller. Then, the closed-loop time delay model of the system is established. Combined with linear matrix inequality and Lyapunov stability theory, the joint design method of controller and event-triggered mechanism is given. Finally, the validity of the proposed control method is verified by simulation.