An approach for fault detection and isolation in dynamic systems from distributed measurements

An application is presented for online model-based fault detection and isolation (FDI) in a multitank fluid system. The tank system is equipped with a distributed measurement and control system that implements components of the IEEE standard for smart transducers, IEEE 1451. This standard includes an information model that provides programming constructs to support high level application functionality on a distributed network of smart transducers. The model-based FDI methodology in this work has several aspects that may be realized on such a distributed network. In the current work, the FDI application operates on a workstation that appears on the network as another (virtual) transducer node. The concurrent tasks in the application may be associated with actual transducer nodes. It represents a first effort toward constructing capabilities for distributed FDI in complex dynamic systems.