Packet Dropout Compensation for Communication Channels Sharing-based Continuous-time Networked Control Systems

This paper is concerned with the problem of multiple communication channels sharing-based network-induced delay and packet dropout compensation for continuous-time networked control system. A multiple communication channels sharing-based compensation method is proposed to reduce the negative influences of network-induced delay and packet dropout. A new model, which can receive more than one control input packet during a control input updating time interval, for continuous-time networked control system is established. Based on the multiple communication channels sharing-based compensation method and the newly established model, the performance of networked control system is optimized. By defining a new Lyapunov functional and using Jensen integral inequality, the effective controller design criteria are derived. Even if without using the sharing of multiple communication channels, the newly derived controller design method is also applicable. A numerical example is given to illustrate the effectiveness of the developed controller.