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This paper considers the fault detection problem of distributed networked control systems (DNCS) with time delay. A sliding mode observer-based fault detection method for a two-level DNCS is presented and two different situations are considered. When all the states of the system are available for measurement, we convert the fault detection problem to a sliding motion stable and reachable problem....
In order to deal with the limited bandwidth of the network, two-level DNCS with stochastic communication logic based on time-dependent Poisson process (TDPP) is presented and central fault diagnosis unit is designed for DNCS with data dropout. The central FDI unit and each subsystem both have identical estimators and for each subsystem, instead of transmitting data to the central FDI unit every sample...
In order to deal with the limited bandwidth of the network and to avoid the uncertainty caused by transmission delays and packet loss, two-level DNCS with deterministic communication logic is presented and central fault diagnosis unit is designed under this communication pattern. The central FDI unit and each subsystem both have identical estimators and thus identical state estimate. For each subsystem,...
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