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Contribution to a quantitative assessment model for reliability-based metrics of electronic and programmable safety-related functions; Contribution a un modele d'evaluation quantitative des performances fiabilistes de fonctions electroniques et programmables dediees a la securite

Abstract

The use of fault-tolerant EP architectures has induced growing constraints, whose influence on reliability-based performance metrics is no more negligible. To face up the growing influence of simultaneous failure, this thesis proposes, for safety-related functions, a new-trend assessment method of reliability, based on a better taking into account of time-aspect. This report introduces the concept of information and uses it to interpret the failure modes of safety-related function as the direct result of the initiation and propagation of erroneous information until the actuator-level. The main idea is to distinguish the apparition and disappearance of erroneous states, which could be defined as intrinsically dependent of HW-characteristic and maintenance policies, and their possible activation, constrained through architectural choices, leading to the failure of safety-related function. This approach is based on a low level on deterministic SED models of the architecture and use non homogeneous Markov chains to depict the time-evolution of probabilities of errors. (author)
Authors:
Publication Date:
Oct 15, 2005
Product Type:
Thesis/Dissertation
Report Number:
FRNC-TH-7011
Resource Relation:
Other Information: TH: These automatique; Also available from Service commun de la documentation. INPL. Centre de Brabois, 2, avenue de la Foret de Haye BP 169, 54505 - Vandoeuvre-les-Nancy Cedex (France)
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; ALGORITHMS; AUTOMATION; COMPUTER ARCHITECTURE; COMPUTERIZED CONTROL SYSTEMS; DATA PROCESSING; ERRORS; FAILURE MODE ANALYSIS; FAULT TOLERANT COMPUTERS; MARKOV PROCESS; PROBABILISTIC ESTIMATION; QUALITY ASSURANCE; RELIABILITY; RISK ASSESSMENT; SAFETY
OSTI ID:
20912846
Research Organizations:
Institut National Polytechnique de Lorraine, Centre de Recherche en Automatique de Nancy, 54 - Vandoeuvre-les-Nancy (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0701763074022
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
246 pages
Announcement Date:
Sep 22, 2007

Citation Formats

Hamidi, K. Contribution to a quantitative assessment model for reliability-based metrics of electronic and programmable safety-related functions; Contribution a un modele d'evaluation quantitative des performances fiabilistes de fonctions electroniques et programmables dediees a la securite. France: N. p., 2005. Web.
Hamidi, K. Contribution to a quantitative assessment model for reliability-based metrics of electronic and programmable safety-related functions; Contribution a un modele d'evaluation quantitative des performances fiabilistes de fonctions electroniques et programmables dediees a la securite. France.
Hamidi, K. 2005. "Contribution to a quantitative assessment model for reliability-based metrics of electronic and programmable safety-related functions; Contribution a un modele d'evaluation quantitative des performances fiabilistes de fonctions electroniques et programmables dediees a la securite." France.
@misc{etde_20912846,
title = {Contribution to a quantitative assessment model for reliability-based metrics of electronic and programmable safety-related functions; Contribution a un modele d'evaluation quantitative des performances fiabilistes de fonctions electroniques et programmables dediees a la securite}
author = {Hamidi, K}
abstractNote = {The use of fault-tolerant EP architectures has induced growing constraints, whose influence on reliability-based performance metrics is no more negligible. To face up the growing influence of simultaneous failure, this thesis proposes, for safety-related functions, a new-trend assessment method of reliability, based on a better taking into account of time-aspect. This report introduces the concept of information and uses it to interpret the failure modes of safety-related function as the direct result of the initiation and propagation of erroneous information until the actuator-level. The main idea is to distinguish the apparition and disappearance of erroneous states, which could be defined as intrinsically dependent of HW-characteristic and maintenance policies, and their possible activation, constrained through architectural choices, leading to the failure of safety-related function. This approach is based on a low level on deterministic SED models of the architecture and use non homogeneous Markov chains to depict the time-evolution of probabilities of errors. (author)}
place = {France}
year = {2005}
month = {Oct}
}