Online fault detection of networked control systems

A method for online fault detection of networked control system considering the network-induced delay was studied in this paper. First of all, a fault detection model was established for the impact of the unknown network-induced delay. Based on the model, the fault detection filter was constructed, and then the fault detection is converted to a optimization problem. The numerical simulation shows that the proposed online fault detection algorithm is not only sensitive to the fault, but also robust to the unknown disturbance caused by the delay.