Monitoring Piecewise Continuous Behaviors by Refining Trackers and their Models

B. Rinner and B. Kuipers

We present a model-based monitoring method for dynamic systems that exhibit both discrete and continuous behaviors. MIMIC uses qualitative and semi-quantitative models to monitor dynamic systems even with incomplete knowledge. Recent advances have improved the quality of semi-quantitative behavior predictions, used observations to refine static envelopes around monotonic functions, and provided a semi-quantitative system identification method. Using these, we reformulate and extend MIMIC to handle discontinuous changes between models. Each hypothesis being monitored is embodied as a tracker, which uses the observation stream to refine its behavioral predictions, its underlying model, and the time uncertainty of any discontinuous transitions.

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