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.