Adaptive event-triggered output feedback control of networked control systems

Abstract

This paper studies the static output-feedback control in a class of linear networked control systems and an improved adaptive event-triggered strategy is designed to save the limited network bandwidth. Different from the existent methods, the proposed event-triggered strategy can relax the assumption of the prior works that the threshold of event-triggered communication scheme is a preselected constant and can include those present ones as its special case. Through fully using the information on network-induced delay and adaptive conditions, an augmented Lyapunov-Krasovskii (L-K) functional is constructed. Several novel integral inequalities and an adjusting parameter is also introduced to reduce the conservatism. Finally, one numerical example is given to illustrate the derived results.