Distributed Interval Observer-based Fault Detection for a class of distributed measurement systems
Résumé
This paper focusses on the fault detection problem for uncertain linear system with distributed sensor network. Fault detection method is designed by using of distributed interval observer. The novel distributed interval observer is built, which only uses outputs of each agent and the communication from its neighbors to estimate the upper and lower bounds of the state of whole system. The distributed interval estimation would be able, starting from coordinate transformation and vector rearrangement, to detect the fault by monitoring the unreasonable interval in each agent. The effectiveness of the proposed fault detection strategy has been demonstrated theoretically and numerically