Abstract
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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
