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192 results on '"Sciences et Technologies pour la Maitrise des Risques (STMR)"'

1. Protéger la liberté en sécurisant

Author: Laclemence, Patrick, Université de Technologie de Troyes (UTT), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2020

2. L'importance des études integratives sur les comportements collectifs et collaboratifs des citoyens pour faire face aux catastrophes

Author: ORTIZ HARO, David, Laclemence, Patrick, Morel Senatore, Audrey, Delatour, Guillaume, Babin, Michael, Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherches et d'Etudes Interdisciplinaires sur le Développement Durable (CREIDD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT), and ORTIZ HARO, David
Subjects: [SHS.PSY] Humanities and Social Sciences/Psychology, [SHS.SOCIO]Humanities and Social Sciences/Sociology, [SHS.SOCIO] Humanities and Social Sciences/Sociology, [SHS.PSY]Humanities and Social Sciences/Psychology, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

3. Les comportements adaptatifs individuels et collectifs dans les situations de crise

Author: Ortiz Haro, David, Laclemence, Patrick, Morel Senatore, Audrey, Delatour, Guillaume, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SCCO]Cognitive science, [SCCO.PSYC]Cognitive science/Psychology, [SHS]Humanities and Social Sciences
Abstract: International audience; This Ph.D. Thesis work is the first step of the ANR INPLIC project. Our objectif is to study individual and collective adaptative behaviors in crisis situations. The collected results will reinforce the doctrines of rescue operators and first responders.; Cette Thèse doctorale s'inscrit dans le cadre du projet ANR INPLIC. Elle a pour objectif d'étudier les comportements adaptatifs individuels et collectifs de la population en situation de crise. Les résultats de cette analyse pourront permettre d'améliorer la doctrine opérationnelle des acteurs de secours.
Published: 2019

4. Le défi de l’anticipation pour les décideurs de la police nationale

Author: Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université de Technologie de Troyes (UTT)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS
Abstract: National audience
Published: 2019

5. Risques sociaux et sociétaux – nouvelles menaces : acte II – « Socialisation urbaine et bassin de vie : une communauté de destins

Author: Laclemence, Patrick, Université de Technologie de Troyes (UTT), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2019

6. Ordre et désordres, confuses sommations

Author: Joubert, Didier, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Equipe de Recherche Interdisciplinaire sur les problématiques de Sécurité (ERIS), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and BORNET, Tanguy
Subjects: [SHS] Humanities and Social Sciences, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2019

7. Digital transformation as an opportunity for life cycle assessment

Author: Grimal, Lou, Troussier, Nadège, Di Loreto, Ines, Centre de Recherches et d'Etudes Interdisciplinaires sur le Développement Durable (CREIDD), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), TECHnologies pour la Coopération, l’Interaction et les COnnaissances dans les collectifs (Tech-CICO), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Digital transformation, Design, [SDE.IE]Environmental Sciences/Environmental Engineering, Life Cycle Assessment, Software
Abstract: International audience; Life Cycle Assessment (LCA) is a well-known methodology for eco-designing product and services. However, its use is limited by difficulties such as availability of high-quality data, involvement of the whole stakeholders of the lifecycle, or the cost of LCA licence. At the same time digital transformation change the way software implying communities can communicate and share. In this framework and mainly based on literature review, this paper seeks to analyse the potential link between digitalization and life cycle assessment development. The goal is to consider the evolution in industries regarding the uses of digital tools and elaborate bridges with environmental analysis. Thus, three specific areas will be bound together: LCA software, ecodesign process, and digital use in order to formulate assumptions and proposals on LCA software evolution including new digital uses
Published: 2019

8. Digital transformation as an opportunity for life cycle assessment

Author: Grimal, Lou, Troussier, Nadège, Di Loreto, Ines, Centre de Recherches et d'Etudes Interdisciplinaires sur le Développement Durable (CREIDD), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), TECHnologies pour la Coopération, l’Interaction et les COnnaissances dans les collectifs (Tech-CICO), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Digital transformation, Design, [SDE.IE]Environmental Sciences/Environmental Engineering, Life Cycle Assessment, Software
Abstract: International audience; Life Cycle Assessment (LCA) is a well-known methodology for eco-designing product and services. However, its use is limited by difficulties such as availability of high-quality data, involvement of the whole stakeholders of the lifecycle, or the cost of LCA licence. At the same time digital transformation change the way software implying communities can communicate and share. In this framework and mainly based on literature review, this paper seeks to analyse the potential link between digitalization and life cycle assessment development. The goal is to consider the evolution in industries regarding the uses of digital tools and elaborate bridges with environmental analysis. Thus, three specific areas will be bound together: LCA software, ecodesign process, and digital use in order to formulate assumptions and proposals on LCA software evolution including new digital uses
Published: 2019

9. Face au terrorisme : un équilibre entre vigilance et hypertension

Author: Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université de Technologie de Troyes (UTT)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, MESH: Identifier terrorisme ennemi sécurité globalité décideur, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience; « Face au terrorisme : un équilibre entre vigilance et hypertension » « fil conducteur » : Les grandes cités, à l’image de notre société, sont devenues des lieux de vie intenses. On n’a jamais autant échangé à travers le monde qu’aujourd’hui ! Les Aéroports, ports, gares sont devenus les centres de gravitation de la planète. Ils engendrent une forme de socialisation occasionnelle. Dans ce contexte, les acteurs de ce quotidien se bousculent et se croisent et dans une cité qui ne veut plus s’arrêter et qui souffre en fait d’un mal, celui de l’indifférence. En avant-propos, l’une des premières interrogations concerne l’amplitude que l'on veut bien donner aux actions de malveillance et de violence. Y a-t-il progression ou s’agit-il d’une multiplication des formes d’actes ? C’est à partir de ces interrogations que l’on peut poser la problématique par quelques paradoxes. Bien sûr les actes sont inadmissibles, mais ils viennent surgir dans une société humaine qui n’a jamais autant échangé, bougé, communiqué qu’aujourd’hui. Or, il nous reste encore à discerner l’évolution de ces actes qui nous terrorisent. C’est dans cet environnent que depuis les années 1990 se développe de nouvelles menaces. Les ronds-points circulaires sont sans doute la marque de ce 21e siècle qui prône comme concept de la continuité et la résilience. La civilisation de l’instant et du mouvement nous oblige à traiter la sécurité à grande échelle. Les technologies du XXIe siècle (IA) nous conduisent à la mise en place de systèmes en amont de plus en plus complexes pour un usage très simplifié. Evidemment, je n’ai pas la prétention en quinze minutes de synthétiser la problématique du terrorisme, ni de faire l’historique, mais fournir quelques pistes de réflexion sur la base de l’évolution de ces actes depuis une trentaine d’années. Ces agressions nous obligent à assumer l'enjeu sécuritaire afin de maintenir cette (ère et aire) de liberté et de libre échange liée à la fluidité dans la complexité.
Published: 2019

10. Ordres et désordre : Confuses sommations

Author: Joubert, Didier, VU VAN, Jean-Baptiste, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.DROIT]Humanities and Social Sciences/Law, [SHS.DROIT] Humanities and Social Sciences/Law
Abstract: International audience; La loi du 28 février 2017 relative à la sécurité publique a tenté d'harmoniser et d'unifier le régime d'emploi des armes des forces de sécurité intérieure - Policiers, gendarmes, militaires ou personnels pénitentiaires- en rassemblant leurs règles à l'article L435-1 du code de la sécurité intérieure. En pratique, cette harmonisation partielle a multiplié l'usage des sommations sans les mettre en cohérence, sans les simplifier ou les rendre plus intelligibles, ce qui crée une insécurité juridique et opérationnelle que l'auteur critique en invitant à poursuivre la réflexion sur le sujet, au profit à la fois du droit de manifester et de l'exercice des missions de sécurité publique.
Published: 2019

11. Remaining useful lifetime estimation and noisy gamma deterioration process

Author: Anne Barros, Mitra Fouladirad, Khanh Le Son, Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Norwegian University of Science and Technology [Trondheim] (NTNU), and Norwegian University of Science and Technology (NTNU)
Subjects: 0209 industrial biotechnology, Engineering, 021103 operations research, business.industry, Condition-based maintenance, Gamma process, 0211 other engineering and technologies, Probabilistic logic, Statistical model, 02 engineering and technology, Decision rule, computer.software_genre, Industrial and Manufacturing Engineering, Reliability engineering, [INFO.INFO-PF]Computer Science [cs]/Performance [cs.PF], symbols.namesake, 020901 industrial engineering & automation, Component (UML), symbols, Data mining, Safety, Risk, Reliability and Quality, business, computer, Reliability (statistics), Gibbs sampling
Abstract: International audience; In many industrial issues where safety, reliability, and availability are considered of first importance, the lifetime prediction is a basic requirement. In this paper, by developing a prognostic probabilistic approach, a remaining lifetime distribution is associated to the system or component under consideration. More particularly, the system׳s deterioration is modelled by a non-homogeneous gamma process. The model considers a noisy observed degradation data and by using the Gibbs sampling technique, the hidden degradation states are approximated and afterwards the system׳s remaining useful lifetime distribution is estimated. Our proposed prognosis method is applied to the Prognostic and Health Management (PHM) 2008 conference challenge data and the interest of our probabilistic model is highlighted. To point out the interest of the prognostic, a maintenance decision rule based on the remaining lifetime estimation results is proposed.
Published: 2016
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12. La chaire Gestion de crise : Un engagement de proximité: Un modèle agile pour la formation et la recherche opérationnelle

Author: Richard, Paul Henri, Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SDV.IB]Life Sciences [q-bio]/Bioengineering
Abstract: International audience; Le développement d’une civilisation de l’instant et du mouvement depuis la fin du XXe siècle soumet nos sociétés modernes à de nouveaux modes de fonctionnement ultrarapides et hyper connectés. Dans ce monde instable, les nouveaux défis sociétaux sont de plus en plus complexes à aborder et nécessitent une approche globale. Dans ce cycle de vie en constante mutation, les décideurs sont contraints de gérer l’imprévu de façon quasi-instantanée pour réduire les effets des situations de crise. Pour anticiper les ruptures et mettre en place une gestion adaptée, les situations complexes requières des compétences particulières. Ainsi, ces dernières années ont vu une professionnalisation progressive des acteurs de la gestion de crise qui se traduit par la mise en place de multiples services et cellules en charge de cette mission. Les défis sécuritaires génèrent de nouveaux besoins en termes de recherche à finalité opérationnelle, de formation initiale et continue, et cela quel que soit le secteur d’activité. Les modèles d’expertises mobilisés lors de la gestion des situations de crise, doivent s’accompagner d’espaces de réflexions critiques. A la croisée des regards entre académiciens, praticiens et industriels, la réponse doit être transversale et interdisciplinaire. Fort de cette vision, l’Université de Technologie de Troyes, l’Ecole Nationale Supérieure des Officiers Sapeurs-Pompiers et plusieurs partenaires privés se sont engagées dans le développement d'une chaire de recherche scientifique, avec le souci impérieux de pluridisciplinarité des compétences et du « mieux travailler ensemble ». Cette intervention présentera la genèse de cette chaire, les différentes initiatives et projets de recherche qu'elle porte ainsi que les méthodes et outils qu'elle déploie dans le cadre de ses activités. Ceci plus spécifiquement sur les exercices de crise qu'elle met en oeuvre aux profits des étudiants. L'exposé soulignera également l'importance des structures partenariales souples et agiles pour répondre aux attentes des acteurs de la sécurité globale.
Published: 2018

13. Intégration de la réaction du public dans la réponse opérationnelle face aux situations de crise : Une piste pour améliorer la sécurisation des grands événements ?

Author: Richard, Paul Henri, Delatour, Guillaume, Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Equipe de Recherche Interdisciplinaire sur les problématiques de Sécurité (ERIS), Institut Charles Delaunay (ICD), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS]Humanities and Social Sciences
Abstract: International audience; Lors des récents attentats qui ont touché la France, les événements sportifs et festifs internationaux ont constitué des cibles symboliques pour les terroristes. A la suite de ces attaques, dès la minute d’après, les populations, victimes et témoins, ont été également les premiers maillons de la chaîne de secours et de solidarité. Ces comportements restent contre intuitifs pour les services professionnels, en effet la représentation classique est qu’en situation de crise, la population céderait invariablement à la panique et à l’indifférence. En conséquent, les plans de préparation ne prennent pas en compte l’action des civils et cherchent à les garder éloignés. Cette communication présentera les enjeux de l’intégration des réactions des populations dans la préparation et dans la conduite opérationnel face aux situations de crise. Ceci notamment dans le cadre des dispositifs de sécurité mise en place lors des événements d’ampleurs. Pour ce faire l’article commencera par réaliser un état de l’art des tendances comportementales des populations face à une catastrophe quelles soit considérées comme structurantes ou déstructurantes pour les services de l'Etat. Une deuxième partie abordera les perspectives de recherche du domaine et les évolutions pressenties de la doctrine française à l’horizon des JO 2024.
Published: 2018

14. Sécuriser la liberté : Gardien de la Paix

Author: Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université de Technologie de Troyes (UTT)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS
Abstract: National audience
Published: 2017

15. Deterioration modelling on wind turbine pitch control system

Author: Antoine Grall, Jinrui Ma, Mitra Fouladirad, Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [INFO.INFO-PF]Computer Science [cs]/Performance [cs.PF], Pitch control, Environmental science, Turbine, ComputingMilieux_MISCELLANEOUS, Marine engineering
Abstract: International audience
Published: 2017
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16. Risque sociaux et sociétaux – nouvelles menaces : acte I – violences, mémoire et socialisation

Author: Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2017

17. Elastic strips normalisation model for higher iris recognition performance

Author: Pierre Beauseroy, Alaa Hilal, Bassam Daya, Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université Libanaise
Subjects: Biometrics, Computer science, Iris recognition, Word error rate, 02 engineering and technology, STRIPS, urologic and male genital diseases, Pupil, law.invention, law, 0202 electrical engineering, electronic engineering, information engineering, Segmentation, Computer vision, cardiovascular diseases, urogenital system, business.industry, fungi, 020206 networking & telecommunications, Pattern recognition, Image segmentation, female genital diseases and pregnancy complications, Signal Processing, 020201 artificial intelligence & image processing, Computer Vision and Pattern Recognition, Artificial intelligence, Performance improvement, business, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, Software
Abstract: International audience; Iris recognition is among the best biometric systems. Characterised by the iris's uniqueness, universality, distinctiveness, permanence and collectability, the iris recognition system achieves high performance and real time response. In this study, the authors propose an improved iris normalisation model applied after a precise iris segmentation process. The normalisation model defines a new reference space for iris features. It normalises the iris using radial strips with a shape that changes between the pupil's boundary and the circular approximation of the iris's outer boundary. Moreover, the effect of the centres of the normalisation strips is evaluated by assessing the recognition performance when comparing three different centres configurations. The approach is tested on 2491 images from the CASIA V3 database. The system's performance is measured at the matching stage. Higher decidability and recognition accuracy at equal error rate is obtained. Detection error tradeoff curves are estimated by using the proposed model and compared with Daugman's reference system for assessing performance improvement.
Published: 2014
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18. Feedback Control System with Stochastically Deteriorating Actuator

Author: Laurence Dieulle, Danh Ngoc Nguyen, Remaining Useful Life Assessment, Antoine Grall, Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Engineering, Closed system (control theory), Stochastic modelling, business.industry, Control (management), Control engineering, [SPI]Engineering Sciences [physics], Control theory, Control system, Dependability, Particle filter, Actuator, business, Reliability (statistics)
Abstract: International audience; Feedback control system performance can be decreasing during its operation because of the components' wear or degradation. To deal with such loss of efficiency, a research aspect of dependability concerns fault-tolerant control (FTC) strategies which give the feedback control system the ability to overcome faults. In this way, the RUL (remaining useful life) becomes valuable information which can be integrated in controller design in efforts to find a satisfactory trade-off between control system performances and components' lifetime. The main aim of this paper is twofold. On one hand, it proposes an integrated model which jointly describes the state of the feedback control system and the actuators degradation. On the other hand, a probabilistic model-based framework is presented in order to assess the RUL of the deteriorating feedback system. No special monitoring device is used to observe the health status of actuator, thus the measurements of closed system response are considered as the only available health information. The RUL is computed by a two-step technique. First, the system state regarding the available observations is estimated on-line by using the Particle Filter method. Then, the reliability of the system is computed with a classical Monte Carlo method. In order to illustrate this approach, a well-known simulated double-tank level control system is used.
Published: 2014
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19. Computation of remaining useful life on a physic-based model and impact of a prognosis on the maintenance process

Author: Mitra Fouladirad, Ariane Lorton, Antoine Grall, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Engineering, Mathematical optimization, 021103 operations research, business.industry, Process (engineering), Computation, 0211 other engineering and technologies, Probabilistic logic, 02 engineering and technology, computer.software_genre, 01 natural sciences, Dynamic reliability, [INFO.INFO-PF]Computer Science [cs]/Performance [cs.PF], 010104 statistics & probability, Piecewise-deterministic Markov process, Data mining, 0101 mathematics, Safety, Risk, Reliability and Quality, business, Particle filter, computer
Abstract: International audience; The aim of this article is double: propose a methodology for a probabilistic prognosis, and examine how the prognosis result impacts the maintenance process. First, the prognosis problem is mathematically defined: it consists in computing the distribution of the remaining useful life of the system conditionally to on-line available information. Considering on-line information allows to provide a specific prognosis for each system according to its life. Second, a global methodology is proposed when the state of the system and its degradations are modeled using a Markov process. This method is basically a two-step technique. On one hand, it requires the computation of the conditional law of the system regarding the available observations. On the other hand, it involves the computation of the reliability of the system. Some reliability computation techniques are proposed when the Markov process is a piecewise deterministic Markov process. The method is illustrated on an aeronautic example: a pneumatic valve within the bleed air system, used to provide regulated air (pressure, temperature) in the cabin. Eventually, the prognosis result is used to help maintenance optimization on an illustrative example. It highlights that the prognosis mainly improves the maintenance decision if the on-line available information is accurate enough.
Published: 2013
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20. A methodology for probabilistic model-based prognosis

Author: Mitra Fouladirad, Ariane Lorton, Antoine Grall, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 0209 industrial biotechnology, 021103 operations research, Information Systems and Management, General Computer Science, Stochastic process, Differential equation, Stochastic modelling, Computer science, SIGNAL (programming language), 0211 other engineering and technologies, Complex system, Context (language use), Statistical model, 02 engineering and technology, [QFIN.RM]Quantitative Finance [q-fin]/Risk Management [q-fin.RM], Management Science and Operations Research, computer.software_genre, Industrial and Manufacturing Engineering, 020901 industrial engineering & automation, Modeling and Simulation, Component (UML), Data mining, False alarm, computer
Abstract: International audience; This paper deals with the prognosis of complex systems using stochastic model-based techniques. Prognosis consists in this case in computing the distribution of the Remaining Useful Life (RUL) of the system conditionally to available information. In so doing, three main challenges arise from the industrial context. First, the model should unify the two classical approaches to describing complex systems: the bottom-up and the top-down approaches. The former uses elementary interacting components whilst the latter models the system’s physical behavior by means of a set of differential equations. Second, the prognosis must integrate online information to provide a specific result for each system depending on their life events. Online information can take different forms (e.g. inspections, component faults, non detection or false alarm, noisy signal) which must all be considered. Third, the prognosis must supply ready, meaningful numerical results, the error of which must also be under control. This paper proposes a method addressing those challenges. The method is illustrated with two different examples: a simplified spring-mass system and a pneumatic valve for aeronautical application.
Published: 2013
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21. Partager la sécurité

Author: Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2016

22. Fire risk perception and building evacuation by vulnerable persons : point of view of laypersons, fire victims and experts

Author: Patrick Laclemence, Manuela Tancogne-Dejean, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université de Technologie de Troyes (UTT)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, media_common.quotation_subject, 05 social sciences, General Physics and Astronomy, Human factors and ergonomics, Poison control, General Chemistry, Suicide prevention, 050105 experimental psychology, Occupational safety and health, Risk perception, Perception, Injury prevention, 0501 psychology and cognitive sciences, General Materials Science, Safety, Risk, Reliability and Quality, Psychology, Social psychology, 050107 human factors, ComputingMilieux_MISCELLANEOUS, media_common, Qualitative research
Abstract: Fire risk perception and its influence on building evacuation were studied in order to improve building evacuation processes. The sample adopted in this study consisted of (i) laypersons, mostly elderly; (ii) healthcare professionals working with vulnerable individuals who live with disability on an everyday basis, for their point of view on disabled persons; (iii) fire victims for their experience (persons who suffered burns in a fire). Qualitative research was used to study fire risk perception and to understand the attitudes and behaviours of individuals. The information was collected during interviews following a questionnaire that combined questions of a general nature, questions referring to the fire and questions focused on the experience of evacuating a building. Results of this inductive, exploratory and qualitative method showed differences between the analysis of experts, the point of view of laypersons and the experience of fire victims. They also showed that risk perception is influenced by psychological, social, physical, political (here regulatory and normative) and cultural factors. Fire risk perception is based on the individual-environment-risk paradigm. Among the factors characterising risk perception, we noted the preponderant role of trust emerges, as well as that of the human environments (daily and emergency), the physical environment (building) and the climate of safety in which the event takes place. These different dimensions of fire risk perception show that it is a combination of psychometric and cultural paradigms. Building evacuation is seen as a psychological process involving both emotion and cognition. The resulting model aims to improve the understanding of a building evacuation process and to provide tools to anticipate crises.
Published: 2016

23. La force BLEU BLANC ROUGE

Author: richard, paul-henri, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2016

24. Apports et limites de la ville « intelligente » pour la gestion territoriale des risques majeurs

Author: richard, paul-henri, Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2014

25. Simulation of Image Time Series from Dynamical Fractional Brownian Fields

Author: Lionel Fillatre, Marc Antonini, Igor Nikiforov, Abdourrahmane M. Atto, Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance (LISTIC), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Projet MEDIACODING, Signal, Images et Systèmes (Laboratoire I3S - SIS), Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis (I3S), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), PEPS CNRS 2013 ENCODIME, Université Nice Sophia Antipolis (... - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS)
Subjects: Random field, Wavelet, Series (mathematics), Field (physics), [INFO.INFO-IT]Computer Science [cs]/Information Theory [cs.IT], Mathematical analysis, Isotropy, Detrended fluctuation analysis, [MATH.MATH-IT]Mathematics [math]/Information Theory [math.IT], Brownian motion, Exponential function, Mathematics
Abstract: International audience; The paper addresses random field time series analysis and simulation. The analysis constrains a spatial isotropic fractional Brownian field to a dynamic temporal behavior from separable time varying Hurst parameters. The constrained dynamic applies by embedding the wavelet packet spectrum of the input random field into different spectra associated with the same random family (exponential spectrum decay). The paper highlights the relevance of the approach for representing and simulating isotropic light source and cloud dynamics.
Published: 2014
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26. A joint predictive maintenance and spare parts provisioning policy for multi-component systems using RUL prediction and importance measure

Author: Nguyen, Kim-Anh, Do Van, Phuc, Grall, Antoine, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche en Automatique de Nancy (CRAN), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)
Subjects: importance measure, Condition based maintenance, Gamma process, remaining useful life, complex systems, prognostic, [SPI.AUTO]Engineering Sciences [physics]/Automatic
Abstract: International audience; The paper presents a joint predictive maintenance and spare parts provisioning policy for gradually deteriorating multi-component systems with complex structure. The decision-making process related to maintenance, spare parts ordering, as well as inspections scheduling is based on both RUL prediction and structural importance measure. Moreover, economic dependency between components is studied and integrated in decision rules. In addition, the impacts of the system structure on components deterioration process are also investigated. This dependency may have a significant influence on the RUL estimation of components. In order to evaluate the performance of the proposed joint predictive policy, a cost model is used. Finally, a numerical example of a 6-component system is introduced to illustrate the use and the advantages of the proposed joint maintenance and spare parts provisioning policy.
Published: 2014

27. The Impact of Natural Disasters on Critical Infrastructures: A Domino Effect-based Study

Author: Farid Kadri, Babiga Birregah, Eric Châtelet, Laboratoire de Thermique, Ecoulements Mécaniques matériaux mise en forme PrOduction (TEMPO), Université de Valenciennes et du Hainaut-Cambrésis (UVHC), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), and Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Human error, Population, domino effect, [QFIN.RM]Quantitative Finance [q-fin]/Risk Management [q-fin.RM], probabilistic modeling, Computer security, computer.software_genre, Critical infrastructure, [SPI.AUTO]Engineering Sciences [physics]/Automatic, Political science, Nat-Tech, Safety, Risk, Reliability and Quality, Natural disaster, education, critical infrastructures, education.field_of_study, natural risks, risk assessment, Cascade effect, Domino effect, Risk analysis (engineering), 13. Climate action, Business, Management and Accounting (miscellaneous), Safety Research, computer, Transport infrastructure
Abstract: Recent events show a significant increase in the number of disasters with natural and/or technological causes, which could have potentially serious consequences for critical infrastructures. Were these infrastructures to fail or be destroyed, the resulting cascade effect (chain of accidents) could lead to catastrophic damage and affect not only the plants, but also people, the environment and the economy. This rise in the number of disasters over the years is due to industrial and human activity as well as society’s sensitivity to major events (hazards). The construction of industrial complexes brings with it stocks of hazardous substances, increased transport infrastructure (road, railways, shipping and pipelines), a rise in population and its concentration, malicious behavior and human error. This paper presents a methodology for carrying out risk assessments on critical infrastructure through the analysis of cascade effects. The proposed methodology can be used to provide critical infrastructures with greater protection and to limit/mitigate the extent of the damage caused by their failure. The paper ends with a conclusion and as series of proposal for improving such an analysis.
Published: 2014
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28. L’éthique, une réflexion anticipative pour réduire l’incertitude en situation de catastrophe

Author: richard, paul-henri, Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2014

29. Safety performance indicators: a questioning diversity

Author: Delatour, Guillaume, Laclemence, Patrick, Calcei, Didier, Mazri, Chabane, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), École Supérieure de Commerce de Troyes (ESC Troyes), Groupe ESC Troyes en Champagne, Institut National de l'Environnement Industriel et des Risques (INERIS), Equipe de Recherche Interdisciplinaire sur les problématiques de Sécurité (ERIS), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), COZZANI, Valerio, and DE RADEMAEKER, Eddy
Subjects: lcsh:Computer engineering. Computer hardware, [SDE.IE]Environmental Sciences/Environmental Engineering, [SDE]Environmental Sciences, lcsh:TP155-156, lcsh:TK7885-7895, lcsh:Chemical engineering, ComputingMilieux_MISCELLANEOUS
Abstract: International audience; Safety performance evaluation is an important issue of industrial risk management. If this statement is well accepted by the community, how to evaluate this performance does not meet consensus. The traditional incident-based approach has been shaken in 2007, after the Texas City refinery explosion. Accident report has pointed out confusion between personal safety and process safety, and between lagging and lagging indicators. Large number of thoughts and discussions has emerged regarding the use of safety performance indicators to measure level of risk. An indicator can be defined as a measurement, qualitative or quantitative, which provides information, in a specific objective of interpretation, in a particular context, for a specific actor. Almost 10 years after the Texas City accident, literature is now enriched with many proposals of set of indicators, emerging from scientific articles and industrial guidelines. Faced with this diversity of sources and management tools, we highlight the following question. What are the criteria for comparison, differentiation, and selection of these tools? Our study is based on an in-depth analytical review of the literature. As a result, several criteria seem to emerge: models used to design indicators, object of study, objectives of interpretation, terms of implementation and revision, actors affected by the outcome, and terms to validate the scientific relevance and operational feasibility. Multiplication of tools gradually improves the monitoring and driving of safety. However, our study shows that several criteria for indicators still need to be discussed, both theoretically and practically.
Published: 2014
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30. Identifying Discriminatory Characteristics Location in an Iris Template

Author: Pierre Beauseroy, Alaa Hilal, Bassam Daya, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université Libanaise
Subjects: Biometrics, Computer science, Iris recognition, 0211 other engineering and technologies, Normalization (image processing), Image processing, 02 engineering and technology, urologic and male genital diseases, Hough transform, law.invention, Gabor filter, law, 0202 electrical engineering, electronic engineering, information engineering, medicine, cardiovascular diseases, Iris (anatomy), ComputingMilieux_MISCELLANEOUS, 021110 strategic, defence & security studies, Active contour model, urogenital system, business.industry, fungi, Pattern recognition, female genital diseases and pregnancy complications, medicine.anatomical_structure, 020201 artificial intelligence & image processing, Artificial intelligence, business, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing
Abstract: The high stability, uniqueness and richness of the iris make it among the best biometric templates. However while examining it one can find that different iris sub-regions result in heterogeneous recognition performances. In consequence, recognition decisions based from partial regions of the iris are subject to the regions themselves. In this paper we investigate the location of discriminatory characteristics in the iris by evaluating recognition performance drawn from different concentric rings within the iris. Iris images are first segmented using Hough transform and active contour. Then a robust normalization takes into account the pupil’s free shape and its center of gravity to unwrap the iris. Gabor filter and Hamming distance are next applied for the encoding and the matching respectively. Results obtained, on 2491 iris images from CASIA-V3 database, show that, contrary to previous studies, the most discriminating characteristics are located in the inner regions of the iris.
Published: 2014
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31. Disaster Early Warning and Relief: A Human-Centered Approach

Author: Babiga Birregah, Rainer Knauf, Mustafa Asim Kazancigil, Setsuo Tsuruta, Ernesto Damiani, Fulvio Frati, University of Milan, Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Technische Universität Ilmenau (TU ), Tokyo Denki University, and Università degli Studi di Milano = University of Milan (UNIMI)
Subjects: Vocabulary, Matching (statistics), Process management, Operations research, Warning system, Emergency management, business.industry, media_common.quotation_subject, [INFO.INFO-RO]Computer Science [cs]/Operations Research [cs.RO], 02 engineering and technology, Crisis management, [QFIN.RM]Quantitative Finance [q-fin]/Risk Management [q-fin.RM], Geography, 020204 information systems, 11. Sustainability, 0202 electrical engineering, electronic engineering, information engineering, Key (cryptography), 020201 artificial intelligence & image processing, Natural disaster, Resilience (network), business, media_common
Abstract: International audience; Effective need collection is a major part of post-disaster assessment and recovery. A system for matching needs with available offers is an essential component for the recovery of communities in the aftermath of natural disasters. In the classic approach, the needs of disaster-stricken communities are collected by rescue personnel sampling a geographic grid and using emergency communication facilities. Subsequently, needs are matched to offers available at some central server and relief interventions are planned to deliver them. In this chapter, after an introduction to this approach, we explore the new notion of peer-to-peer community empowerment for some key activities of disaster management, including early warning systems, needs collection, and need-to-offer matching. Then, we present the design of a framework that leverages on the capacity for the communities to self-organize during crisis management, proposing advanced algorithms and techniques for need-offer matching. Our framework supports pre- and post-disaster use of social networks information and connectivity via an evolvable vocabulary, and supports metrics for resilience assessments and improvement.
Published: 2014
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32. Ville « intelligente » ? Bassins de vie, terrains de crise : Réflexions éthiques pour la gestion des événements urbains extrêmes

Author: Richard, Paul Henri, Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2014

33. Method for quantitative assessment of the domino effect in industrial sites

Author: Eric Châtelet, Guangpu Chen, Farid Kadri, Laboratoire de Thermique, Ecoulements Mécaniques matériaux mise en forme PrOduction (TEMPO), Université de Valenciennes et du Hainaut-Cambrésis (UVHC), Université Lille Nord (France), Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Centre National de la Recherche Scientifique (CNRS)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 021110 strategic, defence & security studies, Engineering, Environmental Engineering, business.industry, [SDE.IE]Environmental Sciences/Environmental Engineering, General Chemical Engineering, 0211 other engineering and technologies, 02 engineering and technology, 010501 environmental sciences, 01 natural sciences, Domino, Overpressure, Domino effect, [SHS.ENVIR]Humanities and Social Sciences/Environmental studies, Quantitative assessment, Forensic engineering, Environmental Chemistry, Heat load, Safety, Risk, Reliability and Quality, business, 0105 earth and related environmental sciences
Abstract: Accidents caused by the domino effect are the most destructive accidents related to industrial sites. The most typical primary incidents for a domino effect sequence are explosions (57%), followed by fires (43%) ( Abdolhamidzadeh et al., 2010 ). These former can generate three escalation vectors (heat load, overpressure, and fragments), and may affect the surrounding equipments and/or facilities. If the affected targets are damaged, they may also explode and generate other threats to other surrounding facilities and so on. These chains of accidents may lead to catastrophic consequences and may affect not only the industrial sites, but also people, environment and economy. This paper presents a methodology for quantitative assessment of domino effects caused by fire and explosion on storage areas. The individual and societal risks are also estimated.
Published: 2013
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34. Qui es-tu, d’où viens-tu ?

Author: Patrick Laclemence, Université de Technologie de Troyes (UTT), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS
Abstract: National audience
Published: 2013

35. (MRL, τ) grouping policy for complex structure systems

Author: Hai VU, Phuc Do Van, Anne Barros, Sciences et Technologies pour la Maitrise des Risques (STMR), Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT), Centre de Recherche en Automatique de Nancy (CRAN), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [INFO.INFO-CC]Computer Science [cs]/Computational Complexity [cs.CC], Complex systems, Remaining Lifetime, Multi-component systems, dependencies, optimization, maintenance, [SPI.AUTO]Engineering Sciences [physics]/Automatic
Abstract: International audience; Nowadays, industrial systems are more and more larger with many components which are connected in a complex structure. The systems usually ask for a high investment cost (expensive components) and many preparation tasks for maintenance. With these system, a maintenance policy should take into account the complexity of system structures and give priority to saving the setup costs. Therefore, an intelligent grouping maintenance strategy for complex structure systems is developed in this paper. Under this strategy, a group of components is decided to Preventively Maintained (PM) at each τ (basic time interval) due to component Mean Remaining Lifetime (MRL) and component Birnbaum's measure of structural importance (I B) to save preventive setup costs. Moreover, the complex structures allow to economize corrective setup costs by grouping some CM actions with the PM actions at τ. The CM grouping is performed by leaving some failed units in idle state until the next PM period. This action can economize corrective setup costs, but it also leads a change of the system structure during the system operation. Therefore, in this paper, a simulation method using Monte Carlo Simulation is developed to analyze the changes of system structure during the system operation and calculate the average maintenance cost. A numerical example of a 6 components system is finally introduced to illustrate the use and the advantages of the proposed strategy when compared to existing methods.
Published: 2013
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36. Actuator health prognosis for designing LQR control in feedback systems

Author: Langeron, Yves, Grall, Antoine, Barros, Anne, Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Computer Science::Robotics, [INFO.INFO-PF]Computer Science [cs]/Performance [cs.PF], lcsh:Computer engineering. Computer hardware, Hardware_GENERAL, lcsh:TP155-156, lcsh:TK7885-7895, lcsh:Chemical engineering
Abstract: International audience; This paper deals with the control of actuators in feedback systems. Actuators are costly components for which health monitoring provides valuable information. Here, the control input law and its variations are assumed to deteriorate actuator until a degradation threshold leading the component to crash. With an observable degradation level according to a stochastic Gamma process, the actuator residual useful lifetime prognosis is used to online reconfigure a Linear Quadratic Regulator control law. The main aim is to find a satisfactory trade-off between conflicting requirements i.e. system performances and actuator reliability.
Published: 2013
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37. A new methodology to model and assess reliability of large dynamic hybrid systems

Author: Broy, Perrine, Hassane, Chraibi, Donat, Roland, Bérenguer, Christophe, Dijoux, Yann, Management des Risques Industriels (EDF R&D MRI), EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), GIPSA - Signal et Automatique pour la surveillance, le diagnostic et la biomécanique (GIPSA-SAIGA), Département Automatique (GIPSA-DA), Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Département Images et Signal (GIPSA-DIS), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), N. Balakrishnan, M. Finkelstein, T. de Wet, Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Département Images et Signal (GIPSA-DIS), and Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)
Subjects: [STAT.AP]Statistics [stat]/Applications [stat.AP], Dynamic Hybrid Systems, Stochstic Hybrid Automaton, Monte Carlo Simulation, Dynamic reliability, [SPI.AUTO]Engineering Sciences [physics]/Automatic
Abstract: International audience; This paper describes a new methodology to model and assess the behavior of industrial-sized dynamic hybrid systems. It consists of a tool platform PyCAT- SHOO, based on PDMP framework, stochastic hybrid automata representation and Monte Carlo simulation.
Published: 2013

38. Moving steganography and steganalysis from the laboratory into the real world

Author: Scott Craver, Andrew D. Ker, Tomáš Pevný, Rainer Böhme, Tomas Filler, Jessica Fridrich, Remi Cogranne, Patrick Bas, Computing Science Laboratory - Oxford University, University of Oxford [Oxford], LAGIS-SI, Laboratoire d'Automatique, Génie Informatique et Signal (LAGIS), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS), Westfälische Wilhelms-Universität Münster (WWU), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Department of Computer Science [Binghamton], State University of New York (SUNY), digimarc, digimarc corp, Binghamton University [SUNY], Czech Technical University in Prague (CTU), ANR-10-CORD-0019,Estampille,Sécurisation d'impressions par codes graphiques(2010), University of Oxford, and Westfälische Wilhelms-Universität Münster = University of Münster (WWU)
Subjects: Steganalysis, Steganography tools, 021110 strategic, defence & security studies, Steganography, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, 0211 other engineering and technologies, 02 engineering and technology, Computer security model, Computer security, computer.software_genre, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, 0202 electrical engineering, electronic engineering, information engineering, Position paper, 020201 artificial intelligence & image processing, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, computer, Game theory, Mathematics
Abstract: International audience; There has been an explosion of academic literature on stega- nography and steganalysis in the past two decades. With a few exceptions, such papers address abstractions of the hid- ing and detection problems, which arguably have become disconnected from the real world. Most published results, including by the authors of this paper, apply "in laboratory conditions" and some are heavily hedged by assumptions and caveats; significant challenges remain unsolved in order to implement good steganography and steganalysis in prac- tice. This position paper sets out some of the important questions which have been left unanswered, as well as high- lighting some that have already been addressed successfully, for steganography and steganalysis to be used in the real world.
Published: 2013
Full Text: View/download PDF

39. Sécurité globale et anticipation : regards croisés et supervision éthique

Author: Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université de Technologie de Troyes (UTT)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2013

40. Minimizing crisis through knowledge and anticipation : qualitative modelling of building evacuation process

Author: Tancogne-Déjean, Manuela, Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université de Technologie de Troyes (UTT)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2013

41. A metric to qualify data maturity in preliminary collaborative design of mechanical systems

Author: Drémont, Nicolas, Troussier, Nadège, Duffy, Alex, Roberval (Roberval), Université de Technologie de Compiègne (UTC), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Department of Design, Manufacture and Engineering Management, and Department of Design, Manufacture and Engineering Management-Department of Design, Manufacture and Engineering Management
Subjects: [SPI]Engineering Sciences [physics], Maturity, Decision making, Preliminary Collaborative Design
Abstract: Computer Aided Design (CAD) and Computer Aided Engineering (CAE) models are often used during product design. Various interactions between the different models must be managed for the designed system to be robust and in accordance with defined specifications. Numerous research works exist considering the link between digital mock-up and analysis models. However design/analysis integration must take into consideration the evolution throughout time numerous mock-up and simulation models, as well as considering system engineering. To effectively manage engineering changes on the system, the dependencies between the different models must be known and the nature of the modification must be characterized to estimate the impact of the modification throughout the dependent models. We propose a metric to take into account the impact of the lack of knowledge in decision making during preliminary collaborative design. To achieve this, a presentation of the complexity of design/analysis link and the need of data qualification are realized.
Published: 2013

42. Technologie against Crime

Author: Laclemence, Patrick, Université de Technologie de Troyes (UTT), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2013

43. Ville intelligente et sécurité globale: convergences, avantages et limites pour de nouveaux paradigmes

Author: richard, paul-henri, Laclemence, Patrick, Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2013

44. Les comportements collectifs de panique : éléments de réflexion

Author: Laclemence, Patrick, Université de Technologie de Troyes (UTT), Sciences et Technologies pour la Maitrise des Risques (STMR), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SHS.SOCIO]Humanities and Social Sciences/Sociology, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract: International audience
Published: 2012

45. Hough Transform and Active Contour for Enhanced Iris Segmentation

Author: Hilal, Alaa, Daya, Bassam, Beauseroy, Pierre, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université Libanaise
Subjects: Biometric, Hough transform, urogenital system, fungi, Iris segmentation, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Active contour, cardiovascular diseases, urologic and male genital diseases, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, female genital diseases and pregnancy complications
Abstract: International audience; Iris segmentation is considered as the most difficult and fundamental step in an iris recognition system. While iris boundaries are largely approximated by two circles or ellipses, other methods define more accurately the iris resulting in better recognition results. In this paper we propose an iris segmentation method using Hough transform and active contour to detect a circular approximation of the outer iris boundary and to accurately segment the inner boundary in its real shape motivated by the fact that richer iris textures are closer to the pupil than to the sclera. Normalization, encoding and matching are implemented according to Daugman"s method. The method, tested on CASIA-V3 iris images database is compared to Daugman"s iris recognition system. Recognition performance is measured in terms of decidability, accuracy at the equal error rate and ROC curves. Improved recognition performance is obtained using our segmentation model proposing its use for better iris recognition system.
Published: 2012

46. Parameter and Model uncertainty Analysis in Probabilistic Risk Assessment at EDF

Author: Le Duy, Tu Duong, Dieulle, Laurence, Bérenguer, Christophe, Vasseur, Dominique, Couplet, Mathieu, Duftoy, A., Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Management des Risques Industriels (EDF R&D MRI), EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF), and EDF (EDF)
Subjects: [INFO]Computer Science [cs], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2012

47. Improved Iris Recognition Using Parabolic Normalization and Multi-Layer Perceptron Neural Network

Author: Hilal, Alaa, Daya, Bassam, Beauseroy, Pierre, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Université Libanaise, Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), and Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: urogenital system, fungi, cardiovascular diseases, urologic and male genital diseases, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, female genital diseases and pregnancy complications
Abstract: International audience; Iris signature is considered as one of the richest, unique, and stable biometrics. This permits to an iris identification system to identify a person even after many years from his first iris signature extraction. In this paper we investigate a new method of iris normalization where iris features are normalized in a parabolic function. Thus iris information close to the pupil is privileged to that close to the sclera. A multilayer perceptron artificial neural network is then used to test the normalization effect and compare it with classical linear normalization method. The study is tested on CASIA V3 database iris images.accuracy at the equal error rate operating point and receiver operating characteristics curves show better results with the parabolic normalization method and thus propose its use for better iris recognition system performance.
Published: 2012

48. The APPRODYN project: dynamic reliability approaches to modeling critical systems

Author: Nicolae Brinzei, Danh Ngoc Nguyen, Gilles Deleuze, Yves Langeron, Génia Babykina, Christophe Bérenguer, Anne Barros, Antoine Grall, Slimane Medjaher, Huilong Zhang, Benoîte de Saporta, Jean-François Aubry, François Dufour, Centre de Recherche en Automatique de Nancy (CRAN), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Sciences et Technologies pour la Maitrise des Risques (STMR), Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT), EDF R&D (EDF R&D), EDF (EDF), Quality control and dynamic reliability (CQFD), Institut de Mathématiques de Bordeaux (IMB), Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS)-Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS)-Inria Bordeaux - Sud-Ouest, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS), Nada Matta, Yves Vandenboomgaerde and Jean Arlat, Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1 (UB)-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS)-Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1 (UB)-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS)-Inria Bordeaux - Sud-Ouest, and Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1 (UB)-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 0209 industrial biotechnology, Computer science, 02 engineering and technology, stochastic hybrid automaton, 01 natural sciences, Dynamic reliability, Reliability engineering, [SPI.AUTO]Engineering Sciences [physics]/Automatic, 010104 statistics & probability, [INFO.INFO-PF]Computer Science [cs]/Performance [cs.PF], 020901 industrial engineering & automation, dynamic reliability, Systems engineering, 0101 mathematics, probabilistic assessment
Abstract: Chapter 8; International audience
Published: 2012

49. Real shape inner iris boundary segmentation using active contour without edges

Author: Pierre Beauseroy, Bassam Daya, A. Hilal, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Modélisation et Sûreté des Systèmes (LM2S), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), and Université Libanaise
Subjects: Biometrics, Computer science, Iris recognition, Boundary (topology), 02 engineering and technology, urologic and male genital diseases, Hough transform, law.invention, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, law, 0202 electrical engineering, electronic engineering, information engineering, medicine, Segmentation, Computer vision, cardiovascular diseases, Iris (anatomy), Active contour model, urogenital system, business.industry, fungi, 020207 software engineering, Pattern recognition, Image segmentation, female genital diseases and pregnancy complications, medicine.anatomical_structure, 020201 artificial intelligence & image processing, Artificial intelligence, business
Abstract: International audience; Research and development in biometric recognition systems must respond to the industrial and experimental reported problems. When considering the iris recognition system, segmentation of the iris is considered as its most difficult step. Classic methodologies determine the inner and outer borders of the iris region using circular or elliptical boundary. These border shapes succeed to delimit correctly the iris region for ideal iris images it fails with non ideal images. In this paper we propose a method to detect the inner iris boundary in its real shape whatever its geometry. First circular Hough transform is used to define the pupil's region of interest, and, second active contour without edges is used to exactly segment the inner iris boundary. The method is tested on CASIA-V3 and UBIRIS databases and results are compared to Wildes' model. Visible improvements show the efficiency of the proposed method to adapt to the inner iris boundary real shape.
Published: 2012
Full Text: View/download PDF

50. Residual useful lifetime prognosis and design of control systems

Author: Langeron, Y., Grall, A., Barros, A., Christophe BERENGUER, Sciences et Technologies pour la Maitrise des Risques (STMR), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), GIPSA - Signal et Automatique pour la surveillance, le diagnostic et la biomécanique (GIPSA-SAIGA), Département Automatique (GIPSA-DA), Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Département Images et Signal (GIPSA-DIS), Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Stendhal - Grenoble 3-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), R. Virolainen & T. Aven, Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Département Images et Signal (GIPSA-DIS), and Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Stendhal - Grenoble 3-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)
Subjects: Remaining useful lifetime, Degradation, Actuator, Stochastic process, Loss of e ffectiveness, [SPI.AUTO]Engineering Sciences [physics]/Automatic
Abstract: International audience; This paper proposes to combine the deterministic behavior of a feedback control system with a stochastic degradation process. A modeling framework is suggested with an intrinsic deterioration caused by the control input and its variations. The applied command is seen as an environment covariate with states modifying the degradation level thanks to a Cox model. Consequently when degrading the actuator has a loss of eff ectiveness to carry out this command. Generally, an actuator is supposed to know several operational modes. For that purpose, two system missions are studied - slow and fast missions - with a Markov chain allowing to parameterize the sojourn times in the di fferent system states. A third order system is controlled in two ways i.e. a classical PID controller commonly used in industrial automation and an optimal control LQR. Both controllers are adjusted according to an expected residual useful lifetime. The system performances and its reliability are assessed aided with Monte Carlo simulations.
Published: 2012

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