Integrated Control and Diagnostics in Discrete Event Dynamic Systems with Hierarchical Time-Extended Petri Nets

S. Ramaswamy and Kimon P. Valavanis

Hierarchical Time-Extended Pelri Nets (H-EPNs) are proposed as a modeling, analysis and simulation tool to study and coordinate real-fime system operations including Failure Detection and Identification (FDI). The structure any hierarchically decomposable system is considered to be a three interactive level hierarchical stn~cture of organization, coordination and execution of tasks [7, 9]. The proposed hybrid model may be used at the organization level for offline evahmtion of different planning scenarios as well as at the coordination level for on-line system control (monitoring the real-time system operations).

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