{
  "id": "1908.03588",
  "version": "v1",
  "published": "2019-08-09T18:11:44.000Z",
  "updated": "2019-08-09T18:11:44.000Z",
  "title": "A Data-Driven and Model-Based Approach to Fault Detection and Isolation in Networked Systems",
  "authors": [
    "Miel Sharf",
    "Daniel Zelazo"
  ],
  "comment": "16 pages, 6 figures",
  "categories": [
    "eess.SY",
    "cs.SY",
    "math.OC"
  ],
  "abstract": "Fault detection and isolation is a field of engineering dealing with designing on-line protocols for systems that allow one to identify the existence of faults, pinpoint their exact location, and overcome them. We consider the case of multi-agent systems, where faults correspond to the disappearance of links in the underlying graph, simulating a communication failure between the corresponding agents. We study the case in which the agents and controllers are maximal equilibrium-independent passive (MEIP), and use the known connection between steady-states of these multi-agent systems and network optimization theory. We first study asymptotic methods of differentiating the faultless system from its faulty versions by studying their steady-state outputs. We explain how to apply the asymptotic differentiation to fault detection and isolation, with graph-theoretic guarantees on the number of faults that can be isolated, assuming the existence of a \"convergence assertion protocol\", a data-driven method of asserting that a multi-agent system converges to a conjectured limit. We then construct two data-driven model-based convergence assertion protocols. We demonstrate our results by case studies.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-08-09T18:11:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "fault detection",
      "networked systems",
      "model-based approach",
      "multi-agent system",
      "data-driven model-based convergence assertion protocols"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}