Fault detection of wireless networked control systems based on fuzzy model

Considering a class of networked control systems using wireless transmission between the controller and the controlled object with nonlinear models, the fault detection is carried out. Firstly, based on a T-S fuzzy model, the object is linearized. The fuzzy observer is designed and the error equation of the observer is given by using the fuzzy dominant subsystem rule. Secondly, the error equation is equivalent to the discrete switched system related to the hop count of the wireless transmission, and the stability of the error system is proved. Finally, a simulation is given to demonstrate the effectiveness of the proposed method.