Fuzzy adaptive control of networked control system with unknown time-delay

In this paper, we propose a fuzzy adaptive controller design for a class of networked control systems (NCS) with the presence of network induced delay, data packet dropout and unknown time-delay controlled plant. The mathematical model of Smith predictor, which is combined with fuzzy adaptive controller and fuzzy compensator time-delay, is designed to adjust online its parameters according to the changing of the system's output. The results based on TrueTime Beta2.0 simulation platform demonstrate that our design significantly improves the response of system over unknown time-delay.