Set-Based detection and isolation of intersampled delays and pocket dropouts in networked control

  • Authors:

  • Nikola Stanković;Sorin Olaru;Silviu-Iulian Niculescu

  • Affiliations:

  • Automatic Control Department, SUPÉLEC System Science (E3S), Gif-sur-Yvette, France,Laboratory of Signals and Systems (L2S, UMR CNRS 8506), CNRS-SUPÉLEC, Gif-sur-Yvette, France;Automatic Control Department, SUPÉLEC System Science (E3S), Gif-sur-Yvette, France;Laboratory of Signals and Systems (L2S, UMR CNRS 8506), CNRS-SUPÉLEC, Gif-sur-Yvette, France

  • Venue:
  • KES'12 Proceedings of the 16th international conference on Knowledge Engineering, Machine Learning and Lattice Computing with Applications
  • Year:
  • 2012

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Abstract

This paper focuses on the set-based method for detection and isolation of the network-induced time-delays and packet dropouts. We particularly pay attention to the systems described by a linear discrete-time equation affected by additive disturbances, controlled via redundant communication channels prone to intersampled time-delays and packet dropouts. Time-delays and packet dropouts are considered as faults from a classical control theory perspective. We will show that fault detection and isolation can be achieved indirectly through the separation of positively invariant sets that correspond to the closed-loop dynamics with healthy and faulty communication channels. For this purpose, in order to provide a reference signal that uniquely guarantees the fault detection and isolation in real time, we design a reference governor using receding horizon technique.