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An overview on diagnosability and prognosability for system monitoring

Amaury Vignolles 1 Elodie Chanthery 1 Pauline Ribot 1
1 LAAS-DISCO - Équipe DIagnostic, Supervision et COnduite
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : The complexification of systems has brought the emergenceof a new field of study: system health monitoring. Thisfield is deemed necessary because it improves system avail-ability and it avoids unnecessary maintenance costs. Systemhealth monitoring is performed through diagnosis and prog-nosis methods. Diagnosis consists in detecting and identi-fying faults that may lead to system failures. Prognosis isrelated to the prediction of the system Remaining Useful Life(RUL) that corresponds to the remaining time until the systemfailure. This paper aims at giving an overview on the prop-erties related to diagnosis and prognosis on different typesof systems. We will focus on the diagnosability and prog-nosability properties. This paper will first briefly present thedifferent types of systems of interest for the system healthmonitoring community. We will consider Discrete Event Sys-tems (DES), Continuous Systems (CS), Hybrid Systems (HS)or Heterogeneous Systems (HtS). The rest of this paper willpresent the definitions given in the literature for the conceptsof diagnosability and prognosability. The similarities and dif-ferences in these definitions for the different types of systemswill be highlighted. Some metrics associated with the prog-nosability property will also be discussed.
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https://hal.laas.fr/hal-02891028
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Submitted on : Wednesday, July 15, 2020 - 5:16:52 PM
Last modification on : Thursday, June 10, 2021 - 3:48:21 AM

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  • HAL Id : hal-02891028, version 2

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Amaury Vignolles, Elodie Chanthery, Pauline Ribot. An overview on diagnosability and prognosability for system monitoring. EUROPEAN CONFERENCE OF THE PROGNOSTICS AND HEALTH MANAGEMENT SOCIETY ( PHM Europe), Jul 2020, (Virtual conference), Italy. ⟨hal-02891028v2⟩

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