Fault detection and diagnosis of networked control system
International Journal of Systems Science
Networked fault detection with random communication delays and packet losses
International Journal of Systems Science - Networked Control Systems and Wireless Sensor Networks - Theories and Applications
Networked predictive control of systems with random delay in signal transmission channels
International Journal of Systems Science - Networked Control Systems and Wireless Sensor Networks - Theories and Applications
A delay-dependent approach to robust H∞ filtering for uncertain discrete-time state-delayed systems
IEEE Transactions on Signal Processing
Takagi-sugeno fuzzy-model-based fault detection for networked control systems with Markov delays
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Sliding mode observers for fault detection and isolation
Automatica (Journal of IFAC)
Brief An LMI approach to design robust fault detection filter for uncertain LTI systems
Automatica (Journal of IFAC)
Brief Subspace-based fault detection algorithms for vibration monitoring
Automatica (Journal of IFAC)
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This article is concerned with the fault detection (FD) problem for a class of linear discrete-time systems in a networked environment. The plant and its controller are located at diverse places, which are connected over network media to form a networked control system (NCS). A set of Kronecker delta functions is employed to characterise the delay and missing phenomenon, simultaneously, in both the backward and forward channels. After properly augmenting the states of the plant and the FD filter, an H∞ FD filter can be designed in solving a certain set of linear matrix inequalities (LMIs). The residual is generated based on the data that can be obtained exactly at the controller and FD filter side. To illustrate the proposed methodology, we apply it to the leak FD for a discrete model, which is generated from the linearisation and discretisation of a practical internet-based nonlinear three-tank system. The fault can be detected within 1 min after its occurrence.