Observer-based event-triggered guaranteed cost control for networked control systems subject to random packet loss *

This paper focuses on the observer-based event-triggered guaranteed cost control for networked control systems (NCSs) subject to packet loss. The event-triggered scheme, which aims at eliminating dispensable transmission and reducing the transmission burden of NCSs, is introduced to determine whether to transmit the current measured output or not. The released data between sensor and controller link and control signal between controller and actuator links may subject to the phenomenon of packet losses which are described as two mutually independent Bernoulli distribution. By constructing a new augmented system, a state observer is given to obtain the estimate values of system states. A sufficient condition is obtained to achieve the purpose of making closed-loop system asymptotically stable. On basis of this stability condition, the design problem of controller is addressed so that value of cost function does not exceed a specified upper bound. Moreover, the cone complementarity linearization algorithm is exploited to convert controller design problem into a convex optimization problem. Finally, a numerical simulation is presented to verify the effectuality of the provided method.