Etude et élaboration d'une approche fonctionnelle pour la localisation de défauts en diagnostic : Etude et élaboration d'une approche fonctionnelle pour la localisation de défauts en diagnostic

Abstract : The work presented in this thesis deals with the development of a functional approach in the fault diagnostic field. This approach is based on the classIfication of knowledge about the system in order to detect and isolate faults with respect to the principal characteristics in the behavior of the system. The objective of this work is to end at a best knowledge specification and utilization of abilities and tools in order to increase the quantity of isolated faults. The functional approach in diagnostic is based on the function. This approach is used in order to isolate the faults that have same signatures. The principal characteristics of parity space, observers and parameter estimation are classified using an ontological model.The function, in the ontological model frame, let to interpret otherwise the knowledge contents in residuals and signatures. This interpretation is based on the definition and. specification of a generic frame using a structural, behavioral and functional analysis of residual generation, residual evaluation and decision tasks. The proposed approach is used on a simulated application concerning a D.C. motor in open and closed loop, in order to detect and isolate sensor, actuator and component faults which have the same signatures. The contribution of this work is placed on the intersection of two fields: artificial intelligence and automatic control.
Document type :
Theses
File URL :
http://docnum.univ-lorraine.fr/prive/SCD_T_1998_0221_VELA_VALDES.pdf
Complete list of metadatas

https://hal.univ-lorraine.fr/tel-01747478
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 11:01:07 AM
Last modification on : Monday, April 16, 2018 - 10:40:45 AM

Identifiers

  • HAL Id : tel-01747478, version 1

Collections

Citation

Luis Gerardo Vela Valdes. Etude et élaboration d'une approche fonctionnelle pour la localisation de défauts en diagnostic : Etude et élaboration d'une approche fonctionnelle pour la localisation de défauts en diagnostic. Autre. Université Henri Poincaré - Nancy 1, 1998. Français. ⟨NNT : 1998NAN10221⟩. ⟨tel-01747478⟩

Share

Metrics

Record views

1