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Contribution à l'analyse de sûreté de fonctionnement des systèmes complexes en phase de conception : application à l'évaluation des missions d'un réseau de capteurs de présence humaine

Abstract : The design processes of new innovative systems must be able to master the increasing complexity brought by the need of integrating multiple technologies, utilized by even more components with high awaited performances. Moreover, stakeholders impose strict delays and costs on their development phase. Many of those systems are intended to possess strong reliability performances. This kind of system must include in their design phase complicated reliability analysis, within a limited time and with limited resources. Therefore, we tackle in this thesis the construction of a methodology, named MéDISIS, for integrating reliability analysis in the design processes using Model-Based System Engineering techniques. The main goal of this work is to make the reliability analysis more efficient during the engineering process, by creating methods and tools using or being included in the current design softwares utilised by system engineers. As we assume that SysML is the best language for Model-Based System Engineering, we developed 3 axes: Using SysML as the language used for the central model of all developments. Extracting the needed information on the dysfunctional behaviour, from functional SysML description studied with classic FMEA-like techniques. Setting translations between SysML descriptions and formal models for reliability studies. Finally, the use of MéDISIS is exemplified on the CAPTHOM project, aiming at developing a new human presence sensor. This study leads us to create a simulation and optimisation software for sensor networks design.
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Pierre David. Contribution à l'analyse de sûreté de fonctionnement des systèmes complexes en phase de conception : application à l'évaluation des missions d'un réseau de capteurs de présence humaine. Autre. Université d'Orléans, 2009. Français. ⟨NNT : 2009ORLE2033⟩. ⟨tel-00464735⟩

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