Diagnostic d'une installation sidérurgique complexe : analyse de la ligne et proposition d'une architecture pour un système de diagnostic-supervision dédié

Abstract : The subject of this study is about a continuous galvanising line. The general objective of this work is the realisation of a default detection, diagnosis and operators assistance system. That kind of system is intended to the control and to the maintenance of the Sollac complex plant, in order to improve the production and the product quality and the productivity. At first, we have searched any interesting information about the galvanising line, to understand the functioning of each processes which are involved in the production of galvanised iron sheet. Then, the bibliographical analysis of knowledged based diagnosis methods (neural networks, expert systems, fuzzy logic, qualitative physics) is writen to find a strategy to supervise such a non linear multi-variable system. The model based methods are useless because of the lack of available models. The next stage concerned the mesurements collections. The measurements analysis results allow us to build a knowledge base with some defaults trees (defaults, causes and effects) and treatment rules. Then the supervision system architecture is defined. A multi-agent system is described to realise the whole monitoring system and a structure based on an object model is proposed to implement that system
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Theses
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http://docnum.univ-lorraine.fr/prive/SCD_T_1995_0430_ROTH.pdf
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https://hal.univ-lorraine.fr/tel-01753554
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Submitted on : Thursday, March 29, 2018 - 4:44:37 PM
Last modification on : Friday, March 30, 2018 - 1:28:52 AM

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Sandrine Roth. Diagnostic d'une installation sidérurgique complexe : analyse de la ligne et proposition d'une architecture pour un système de diagnostic-supervision dédié. Autre. Université Henri Poincaré - Nancy 1, 1995. Français. ⟨NNT : 1995NAN10430⟩. ⟨tel-01753554⟩

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