Behavior graphs for hybrid systems monitoring

Takrouni, Asma; Cocquempot, Vincent; Zanzouri, Nadia; Ksouri, Mekki

Document type :

Communication dans un congrès avec actes

Title :

Behavior graphs for hybrid systems monitoring

Author(s) :

Takrouni, Asma [Auteur]
Cocquempot, Vincent [Auteur]

Systèmes Tolérants aux Fautes [STF]
Zanzouri, Nadia [Auteur]
Ksouri, Mekki [Auteur]

Conference title :

IEEE ICCEE : International Conference on Computer and Electrical Engineering

City :

Dubai

Country :

Émirats arabes unis

Start date of the conference :

2009-12-28

Book title :

Computer and Electrical Engineering, 2009. ICCEE '09. Second International Conference

Publication date :

2009-12-28

English keyword(s) :

Fault detection and isolation
Hybrid systems
graphs
monitoring

HAL domain(s) :

Sciences de l'ingénieur [physics]/Automatique / Robotique

English abstract : [en]

Hybrid Dynamical Systems (HDS) constitute a wide class of common industrial applications, where the behavior is determined by the interaction between continuous and discrete dynamics, i.e. behavioral modes succession. The ...
Show more >Hybrid Dynamical Systems (HDS) constitute a wide class of common industrial applications, where the behavior is determined by the interaction between continuous and discrete dynamics, i.e. behavioral modes succession. The general principle of model-based Fault Detection and Isolation (FDI) algorithms is to compare the expected behavior of the system, given by a model, with its actual behavior, known through on-line observations. Faults in HDS may corrupt the two dynamics. In that paper, we propose to limit the set of possible mode candidates by using a priori information on the discrete evolution under normal and faulty hypothesis. Two kinds of graphs are derived from the initial hybrid model, namely Normal Behavior Graphs (NBG), Faulty Behavior Graphs (FBG). Using these graphs allows us not only to identify efficiently the actual mode but also to directly interpret (diagnose) the discrete faulty evolution in terms of faults. The whole FDI methodology is described and applied to a two tanks system example.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL

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