Decentralized Event-Triggered Control of Discrete-Time Linear Systems via Output Feedback

In this paper, event-triggered control over a sensor network is studied as one of the control methods of cyber-physical systems. Event-triggered control is a method that communications occur only when the measured value is widely changed. In the proposed method, by solving an LMI (linear matrix inequality) feasibility problem, we derive an event-triggered output feedback controller such that the closed-loop system is asymptotically stable. First, the problem formulation is given. Next, the control problem is reduced to an LMI feasibility problem. Finally, the proposed method is demonstrated by a numerical example.