Dissertations / Theses on the topic 'Architectures de contrôle holonique'
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Barbosa, José. "Proposition d’une architecture holonique auto-organisée et évolutive pour le pilotage des systèmes de production." Thesis, Valenciennes, 2015. http://www.theses.fr/2015VALE0008/document.
The manufacturing world is being deeply challenged with a set of ever demanding constraints where from one side, the costumers are requiring products to be more customizable, with higher quality at lower prices, and on other side, companies have to deal on a daily basis with internal disturbances that range from machine breakdown to worker absence and from demand fluctuation to frequent production changes. This dissertation proposes a manufacturing control architecture, following the holonic principles developed in the ADAptive holonic COntrol aRchitecture (ADACOR) and extending it taking inspiration in evolutionary theories and making use of self- organization mechanisms. The use of evolutionary theories enrich the proposed control architecture by allowing evolution in two distinct ways, responding accordingly to the type and degree of the disturbance that appears. The first component, named behavioural self- organization, allows each system’s entity to dynamically adapt its internal behaviour, addressing small disturbances. The second component, named structural self-organization, addresses bigger disturbances by allowing the system entities to re-arrange their rela- tionships, and consequently changing the system in a structural manner. The proposed self-organized holonic manufacturing control architecture was validated at a AIP-PRIMECA flexible manufacturing cell. The achieved experimental results have also shown an improvement of the key performance indicators over the hierarchical and heterarchical control architecture
Valette, Etienne. "Vers une approche anthropocentrée des architectures de contrôle pour les systèmes intelligents de production." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0140.
Last decades have seen the growth in size and complexity of industrial systems and flows (both physical and informational). Hyper competitive markets, demand atomization and customer requirements level increase have brought about the need to combine the robustness and performance of centralized systems with the responsiveness of decentralized systems. For the 20 last years, the relevance of these Hybrid Control Architectures (HCA) has been demonstrated through numerous works. However, they are today hardly present in the industrial landscape. This situation could find some of its roots in a certain lack of genericity and/or Human-System acceptability. In this research work, the explored path consists in proposing a reference formal framework for the design, modelling, simulation, visualization and evaluation of complex systems' constitutive components and interactions/relations. The purpose of this framework is to bridge the genericity gap identified for Holonic and Hybrid Control Architectures Design regarding complex Multi-Agent Systems (MAS), but also to promote human inclusion into these. To this end and to promote the socio-technical representation of systems, the proposed relationships model is grounded on the nature of human societies' ones
Louati, Thamer. "Etude et réalisation d’un contrôle isoarchique de flux de personnes via des capteurs biométriques et infotroniques." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4308.
The proposed work deals with the intelligent control, isoarchic and multicriteria of people flow in a restricted area. Our proposal is a control system based on a multimodal biometrics and RFID which are considered as two secured complementary techniques for robust and flexible people flow control. Multimodal biometrics is used for more reliable individual recognitions and the RFID for securing and storing supervised individuals identity information. This system is completely decentralized and the decision related to a control access request is made autonomously at each gate of each controlled area. The internal entities which participate to the decision making process respond to the holonic paradigm concepts and principles. The automatic gate opening is conditioned with several criteria conjunction (biometrics identifications, RFID identification, access permissions, authorized paths, status of the zone at time t, etc.). A multicriteria decision aid method is thus deployed in each access gate to merge biometrics identifications responses and to automatically treat the real-time access authorization requests. First, a state of art related to the biometric recognition, the contribution of multimodal biometric, the RFID technology and the physical access control based on biometric, was done. Then, an intelligent, isoarchic and multicriteria control of people flow system was proposed, including the use of multimodal biometric and RFID. At the end, a system simulation test bed was implemented to control prisoners flow in a jail. It supports the integration of various biometrics and RFID technologies
Indriago, Carlos. "Application du paradigme holonique aux systèmes de contrôle hybrides." Nantes, 2015. https://archive.bu.univ-nantes.fr/pollux/show/show?id=f9d22c8d-ecf1-40bd-9175-af76b71d2eaa.
Several studies typically arise from the interaction of discrete planning algorithms and continuous processes, normally called hybrid control systems. It consists in three distinct levels, the controller, the plant and the interface. Hybrid control systems are conventionally modeled by switching patterns using the whole system instead of atomic resource. Therefore, the reconfiguration process is complex because it must take into account the system as a whole, making the hybrid control systems inflexible and more susceptible to uncertainties. The need for flexibility thus leads several teams to investigate the application of holonic paradigm to hybrid control systems. The objective of this document is to demonstrate the possibility to apply almost directly a holonic discrete-event based reference architecture to hybrid control systems. To do this, it is proposed a model called holonic hybrid control model (H2CM) derived from the PROSA architecture application on hybrid control systems. Two study cases were taken for verifying the proper operation of the proposed model; the first is a typical example from the hybrid systems literature call switched arrival systems and a second is an example from a real process in industrial electricity generation process, specifically a Combined Cycle Plant (CCP). Both study cases were simulated in Java and a series of experiments looking for measure flexibility, autonomy, cooperativeness, performance and stability were applied
Gamboa, Quintanilla Francisco. "Couplage des Architectures Holonique et Orientée-Services pour la Conception de Systèmes de Production Agiles." Nantes, 2015. https://archive.bu.univ-nantes.fr/pollux/show/show?id=64061e32-a0b3-4a56-92ad-2d4da2fa5239.
In order to achieve responsiveness, flexibility, cost reduction and increased productivity, companies searching for solutions to conventional manufacturing control in terms of robustness, adaptability, rapid configuration and an efficient use of resources. The Holonic and Service-oriented Architectures have been proposed as solutions for the conception of such kind of systems, the former ( in the manufacturing), providing flexibility at the control level, the latter ( in the computer science) at a process level. The combination of both has been recognized as a very attractive solution for the design of the Next Generation Manufacturing Systems. However, the integration of the concept of services needs new models to adapt to the manufacturing context, specifically for process planning and scheduling. This work proposes a product driven Service Oriented Holonic Manufacturing System architecture (SoHMS) as a methodology for modeling flexible production systems with a set of models and prescriptive methodologies for its specification. As models, we contribute with a manufacturing service model (MService) and a computational Flexible Petri-Net based Process Model; an orchestration protocol and strategies for the Integrated Process Planning and Scheduling of such processes for the effective and efficient exploration of solutions while dealing with the problem of combinatorial complexity; as well as the holonic models and protocols forming the SoHMS architecture. As methodologies, we propose a framework for: conceiving manufacturing services and processes specifications, the creation of an application service-ontology, and a methodology for modeling flexible petri- net models
Mehat, Jean. "Contrôle et programmation des architectures pyramidales." Paris 8, 1989. http://www.theses.fr/1990PA080475.
Control and programmation of computers built with processing elements interconencted through a pyramidal netzork are studied. The introduction places the study in the context of computers built since world war ii, and definies parallelism and simd architectures. In chapter 2, the proprieties of pyramidal interconnection networks are described, and compared with thoses of hypercubes and meshes; existing massively parallel pyramid machines pclip, gam, papia and sphinx are described. In chapter 3, algorithms illustrgting processing on the pyramids are presented; two modes of programming these machines: hierarchical and unanimous, are distinguished. In chapter 4, a controller for the pyramid based on control transmission is described ; it allows synchronization in the order of 100ns, and identification of processes. For the exchanges through the anonymous ports interconnenction the processing elements of adjacent levels. In the chapter 5, a programming language implementing the concepts presented in chapters 3 and 4 is described. After exposing the points not solved by pyr-e, a-pyramidel architectures that would benefit from its adaptation are described in the conclusion
Rouhana, Nicolas. "Architectures de contrôle de qualité de service." Paris 6, 2001. http://www.theses.fr/2001PA066368.
Cortes, Buitrago Gloria. "Simulations et contrôle pédagogique : architectures logicielles réutilisables." Université Joseph Fourier (Grenoble), 1999. http://www.theses.fr/1999GRE10165.
Simão, Jean Marcelo. "Contribution au Développement d'un Outil de Simulation de Systèmes Holoniques de Production et Proposition d'un Meta-Modèle de Contrôle Holonique." Phd thesis, Université Henri Poincaré - Nancy I, 2005. http://tel.archives-ouvertes.fr/tel-00083042.
L'HMS contient aussi le Contrôle Holonique (HC) qui doit organiser proprement les collaborations des holons pour atteindre de l'agilité. En effet, le développement des HMS demande des outils d'ingénierie d´aide au projet et aux tests. Dans cette thèse, il est proposé un meta-modèle pour HC dont les systèmes dérivés sont simulés dans un outil appelé ANALYTICE II. Cet outil présente une séparation précise entre les entités de contrôle du haut niveau et les ressources émulées.
Premièrement, avant de proposer le meta-modèle pour l´HC, l'holonification de ressource est proposée dans cet environnement. Chaque Resource-HL est obtenue à l'aide d'une ressource virtuelle qui permet d'accéder des données et des services d'une ressource émulée au haut niveau de contrôle. Par la suite, il est proposé le meta-modèle pour l´HC, sur les Resource-HLs, dans une orientation au processus.
L'essence de la solution est inspirée des concepts des Systèmes à Base de Règles (RBS) où les relations causales du contrôle sont traitées par des entités appelées Rules. Le processus d'inférence dans ce genre de RBS a été obtenu grâce à des collaborations basées sur notifications. Les Resource-HLs notifient les Rules par milieu de la connaissance factuelle, comme leurs états. Chaque Rule notifié délibère au moment approprié sur l'exécution d´une certaine action de contrôle.
L'inférence se passe dans une chaîne de notifications grâce à une composition de Resource-HLs et de Rules basées sur agents. Ce type d'inférence apporte des avantages pour l'HC tels que la haute réactivité et le découplage des éléments. Il permet aussi la création de mécanismes coopératifs pour répondre aux besoins du contrôle comme le déterminisme et la résolution de conflits. De plus, cette approche de contrôle orientée aux règles permet d´obtenir une implémentation et une expression cohérentes du contrôle.
Les mécanismes de contrôle sont émergés à partir de la connaissance causale de contrôle exprimée par des experts dans les Rules. Des experts sont exclusivement impliqués dans la connaissance de contrôle appropriée pour exploiter les flexibilités du système en cherchant de l'agilité. En outre, certains experts pourraient être des agents artificiels pour traiter de façon automatique la connaissance des Rules. En résumé, cette solution de HC orientée au processus traite simultanément un ensemble de sujets de contrôle encore en s'agitant d'une solution indépendante et aussi ouverte.
En fait, l'ouverture de la solution permet son interprétation comme une solution orientée au produit. Le contrôle orienté au produit est une tendance pour trouver de l'agilité via le découplage des demandes de production et ses exécutions en utilisant des entités comme les Smart-Product-HLs. Chaque Smart-Product-HL concerne un ordre de production spécifique et personnalisée. Les Smart-Product-HLs, avec une certaine autonomie, utilisent les Resource-HLs pour répondre à ses besoins de production.
Dans l'interprétation du meta-modèle, leurs interactions sont organisées en utilisant les Rules pour la coopération des Resource-HLs qu'empêchent des comportements impropres du système. Dans ce contexte, l'exécution des Rules dépend de l'intérêt explicite des Smart-Product-HLs dans leurs utilisations. En quelque sorte, chaque Smart-Product-HL utilise des Rules comme un genre d'expert. La solution a été appliquée dans un ensemble d´exemples en ANALYTICE II qui ont présenté une certaine indépendance de la simulation, celle-ci parce que chaque système de contrôle n'est pas conscient que les Resource-HLs et les Smart-Product-HLs sont simulés.
Abi-Farraj, Firas. "Contributions aux architectures de contrôle partagé pour la télémanipulation avancée." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S120/document.
While full autonomy in unknown environments is still in far reach, shared-control architectures where the human and an autonomous controller work together to achieve a common objective may be a pragmatic "middle-ground". In this thesis, we have tackled the different issues of shared-control architectures for grasping and sorting applications. In particular, the work is framed in the H2020 RoMaNS project whose goal is to automatize the sort and segregation of nuclear waste by developing shared control architectures allowing a human operator to easily manipulate the objects of interest. The thesis proposes several shared-control architectures for dual-arm manipulation with different operator/autonomy balance depending on the task at hand. While most of the approaches provide an instantaneous interface, we also propose architectures which automatically account for the pre-grasp and post-grasp trajectories allowing the operator to focus only on the task at hand (ex., grasping). The thesis also proposes a shared control architecture for controlling a force-controlled humanoid robot in which the user is informed about the stability of the humanoid through haptic feedback. A new balancing algorithm allowing for the optimal control of the humanoid under high interaction forces is also proposed
Ribeiro, Christiane. "Contributions au contrôle de l'affinité mémoire sur architectures multicoeurs et hiérarchiques." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00685111.
Pousa, Ribeiro Christiane. "Contributions au contrôle de l'affinité mémoire sur architectures multicoeurs et hiérarchiques." Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENM030/document.
Multi-core platforms with non-uniform memory access (NUMA) design are now a common resource in High Performance Computing. In such platforms, the shared memory is organized in an hierarchical memory subsystem in which the main memory is physically distributed into several memory banks. Additionally, the hierarchical memory subsystem of these platforms feature several levels of cache memories. Because of such hierarchy, memory access costs may vary depending on the distance between tasks and data. Furthermore, since the number of cores is considerably high in such machines, concurrent accesses to the same distributed shared memory are performed. These accesses produce more stress on the memory banks, generating load-balancing issues, memory contention and remote accesses. Therefore, the main challenge on a NUMA platform is to reduce memory access latency and memory contention. In this context, the main objective of this thesis is to attain scalable performances on multi-core NUMA machines by controlling memory affinity. The first goal of this thesis is to investigate which characteristics of the NUMA platform and the application have an important impact on the memory affinity control and propose mechanisms to deal with them on multi-core machines with NUMA design. We focus on High Performance Scientific Numerical workloads with regular and irregular memory access characteristics. The study of memory affinity aims at the proposal of an environment to manage memory affinity on Multi-core Platforms with NUMA design. This environment provides fine grained mechanisms to manage data placement for an application by using compilation time and architecture information. The second goal is to provide solutions that show performance portability. By performance portability, we mean solutions that are capable of providing similar performances improvements on different NUMA platforms. In order to do so, we propose mechanisms that are independent of machine architecture and compiler. The portability of the proposed environment is evaluated through the performance analysis of several benchmarks and applications over different platforms. Last, the third goal of this thesis is to design memory affinity mechanisms that can be easily adapted and used in different parallel systems. Our approach takes into account the different data structures used in High Performance Scientific Numerical workloads, in order to propose solutions that can be used in different contexts. We evaluate the adaptability of such mechanisms in two parallel programming systems. All the ideas developed in this research work are implemented in a Framework named Minas (Memory affInity maNAgement Software). Several OpenMP benchmarks and two real world applications from geophysics are used to evaluate its performance. Additionally, Minas integration on Charm++ (Parallel Programming System) and OpenSkel (Skeleton Pattern System for Software Transactional Memory) is also evaluated
Jalier, Camille. "Communication et contrôle dans les architectures homogènes de circuits pour télécommunications." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20033/document.
This PhD research aims to solve challenges about control and communication in the design of digital embedded systems for 4G telecom applications. The application complexity added to the increasing productivity gap force to think about new design methodologies and the underlying architectures. Several new research directions is proposed in this work. A methodology for design space exploration and a digital architecture based on homogeneous and flexible processing units interconnected by a Network-on-Chip is proposed. A processing unit is a cluster of DSPs controled by a MIPS processor to compute telecom applications. To meet low power constraints, we propose optimization techniques based on resource management including task migration
Braneci, Mohamed. "Protocoles de contrôle d'erreurs pour des nouvelles architectures de réseaux de telecommunications." Paris, ENST, 1997. http://www.theses.fr/1997ENST0048.
Chotin-Avot, Roselyne. "Architectures matérielles pour l'arithmétique stochastique discrète." Paris 6, 2003. http://hal.upmc.fr/tel-01267458.
Heudin, Jean-Claude. "Architectures fondées sur la connaissance pour l'exécution et le contrôle de processus complexes." Paris 11, 1988. http://www.theses.fr/1988PA112347.
This thesis describes studies upon Knowledge-based architectures for real-time control of complex processes. We first introduce a definition of complexity based on three major attributes: parallelism, Real-time and Knowledge. After a careful study of Real-time programming and Knowledge-based related techniques, we present a Real-time distributed executive, called KOSTM, based on an original encoding by means of behavior rules and declarative tasks. But, the use of Artificial Intelligence techniques magnifies the efficiency problem. J Thus, to solve this problem, we design a tagged-RISC architecture for an efficient execution of symbolic processing. As a conclusion we give results and lay out future extensions of this research
Sandt, Frédéric. "Architectures de contrôle pour robots mobiles : vers une conception orientée contraintes du superviseur." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10083.
Adouane, Lounis. "Architectures de contrôle comportementales et réactives pour la coopération d'un groupe de robots mobiles." Phd thesis, Université de Franche-Comté, 2005. http://tel.archives-ouvertes.fr/tel-00128160.
Martins, Goncalves Philippe. "Architectures de contrôle et middleware pour les réseaux de prochaines générations et évaluation de performances." Paris, ENST, 2000. http://www.theses.fr/2000ENST0024.
Limal, Steve. "Architectures de contrôle-commande redondantes à base d'Ethernet Industriel : modélisation et validation par model-checking temporisé." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2009. http://tel.archives-ouvertes.fr/tel-00468531.
Miermont, Sylvain. "Contrôle distribué de la tension d'alimentation dans les architectures GALS et proposition d'un sélecteur dynamique d'alimentation." Grenoble INPG, 2008. http://www.theses.fr/2008INPG0100.
The need for more computing power grow stronger, but constraints on power consumption of integrated circuit had never been so strong. Dynamic supply voltage scaling allows a better energy efficiency by adjusting the trade. Off between computing power and electric power. However, on circuits with numerous functional units, gains of this technique are limited if units processing load is uncorrelated. This work proposes an architecture called LDV~ based on globally asynchronous (GALS) techniques, and an innovative dynamic power supply selector, allowing fine-grain control of energy efficiency in an integrated circuit. This compact and easy to integrate power supply selector had been implemented in a 65 nm CMOS prototype and its characteristics were validated. Finally, an extension of the LDVS architecture, called LA YS, is proposed to compensate variability, which is a critical problem in new CMOS technologies, and to transform a spread in performance into a spread in energy efficiency
Limal, Steve. "Architectures de contrôle-commande redondantes à base d’Ethernet Industriel : modélisation et validation par model-checking temporisé." Cachan, Ecole normale supérieure, 2009. http://tel.archives-ouvertes.fr/tel-00468531/fr/.
This work deals with an Ethernet based protocol that specifies redundancy mechanisms. The objective is to check the specification respect to availability properties. The industrial context of this work led us to : 1) give priority to a formal method. Temporal model-checking has been selected. Indeed the protocol must be used in critical industrial control systems. Therefore a thorough verification is necessary. The protocol description depends on many temporal parameters. Consequently, a technique taking time into account has been preferred. 2) put forward a method to instantiate our model. This timed automata based model has been designed to be modular. Thus the modelling of any network architecture is possible without requiring any modelling skills from the engineer. 3) put forward abstractions in order to improve the model-checking time and memory consumption. Checked properties describe the redundancy mechanisms capability to keep communications working event in case of medium or end device failure. In order to illustrate the relevance of our proposals, we apply the method of instantiation to two types of network architecture. Then some experiments are conducted and studied
Deschamps, Rémy. "Architectures et facteurs de contrôle des systèmes fluviatiles et turbiditiques. De la caractérisation à la modélisation." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS611.
The turbiditic and fluvial systems have similarities, in particular in their morphology (incisions, channels), but many differences are notable, as regards the architecture of the deposits, and the spatio-temporal evolution of these two systems, yet genetically linked. The comparison of these systems concerns the interaction of the different physical processes involved in the origin and the behaviour of these systems, and on the architectures of the preserved deposits. Continental and deep sea systems are characterized primarily by the physical processes leading to the erosion, transport and subsequent deposition of sedimentary particles. These processes are controlled by various local or global forcing, thus shaping their morphologies that evolves in space (along the upstream-downstream profile), and over time. These systems are genetically linked and the "source-to-sink" approach includes all the continental and marine processes that contribute to sediment production, transport and deposition. Understanding these controlling factors is crucial in the understanding and the prediction of sedimentation recorded in basins, at different scales. The allocyclic and the autocyclic controlling factors are responsible for the internal organization of the sandy reservoirs, and the understanding of these different parameters will make it possible to constrain the numerical models, whose objective is, according to the scale considered (basin scale or reservoir scale), to predict the distribution of sedimentary facies (reservoirs, source rocks, seals), or to minimize the risks when producing a reservoir
Le, Mortellec Antoine. "Proposition d'une architecture de surveillance "active" à base d'agents intelligents pour l'aide à la maintenance de systèmes mobiles - Application au domaine ferroviaire." Phd thesis, Université de Valenciennes et du Hainaut-Cambresis, 2014. http://tel.archives-ouvertes.fr/tel-00947981.
Canevet, David. "Architectures électroactives polyfonctionnelles à base tétrathiafulvalène : Xérogels conducteurs et contrôle conformationnel à travers les relais calixarène et biphényle." Phd thesis, Université d'Angers, 2010. http://tel.archives-ouvertes.fr/tel-00492345.
Ferveur, Olivier. "Optimisation des architectures IP/MPLS de transport mutualisé." Phd thesis, Université Henri Poincaré - Nancy I, 2009. http://tel.archives-ouvertes.fr/tel-00418026.
Cette multi-utilisation du standard a entraîné une volonté de mutualisation au sein du coeur de réseau. Aujourd'hui, les fonctionnalités apportées par MPLS permettent une virtualisalisation des infrastructures de réseau IP sur un unique coeur , entraînant une complexification de la gestion de la ressource. Dans cette thèse, nous étudierons les possibilités actuelles de gestion de ce réseau mutualisé et nous proposerons l'adjonction d'un mécanisme de gestion appelé TDCN. Nous démontrerons les nombreuses possibilités offertes par ce nouveau système pour ainsi optimiser l'utilisation du réseau.
Lavado, Villa Luiz Fernando. "Architectures de puissance et commandes associées pour la gestion des ombrages dans les installations photovoltaïques. Power Architectures and Control Systems Associated to the Management of Shadows in Photovoltaic Plants." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00951411.
Khoukh, Abdelouahed. "Apport de la RMN diffusionnelle à l’étude des systèmes polymères : extrémités de chaîne, contrôle des architectures et auto-assemblage." Thesis, Pau, 2014. http://www.theses.fr/2014PAUU3055/document.
Diffusion Ordered Spectroscopic Nuclear Magnetic Resonance (DOSY NMR 1H) makes it possible to determine physicochemical data such diffusion coefficients. While typical NMR data on the structure of molecules can be obtained, this technique also permits determinations of the physicochemical characteristics, such as molecular sizes or aggregate formation. The objective of this work was to examine how various NMR methodologies, specifically, 1 and 2 dimensional DOSY NMR, can be applied to the characterization of polymers. The first part of the manuscript relates the NMR characterization of some polymeric materials with a special interest in chain-end groups. In particular, we demonstrate the relationships between chain-ends and the polymerization methods employed. In a second part, the potential of the DOSY technique is used to determine controlled features of a radical polymerization resulting in di- and triblock architectures. Molecular weights are also determined by self-diffusion coefficient measurements. The results presented herein demonstrate that diffusional NMR can be effectively employed to understand interactions in polymeric structures. Indeed, DOSY 1H-NMR provides new interesting results concerning micellization, aggregation, encapsulation phenomena and the release of active molecules
Fonseca, Mauro Sergio Pereira. "Architectures basées sur les politiques et SLAs pour la gestion et le contrôle des services et réseaux multidomaines émergents." Paris 6, 2003. http://www.theses.fr/2003PA066254.
Benarif, Samir. "Plate-forme multi-agent pour la reconfiguration dynamique des architectures logicielles." Versailles-St Quentin en Yvelines, 2006. http://www.theses.fr/2006VERS0038.
A dynamic change to architecture is an active area of research within the software architecture community. The objective of all architecture reconfiguration, adaptation and evolution is the improvement of the quality attributes of the software architecture. Only recently the reconfiguration of software architecture at runtime has grown up considerably for the construction of reliable evolutionary systems. The structure of these systems is dynamic and continuously changing. Consequently, architectures must have the ability to react to events and perform architectural changes autonomously. In this thesis, we provide a new approach based on software multi-agent platform. Such agents are used to supervise the architecture, gather information from it and its environment, capture dynamic changes, and manage them. They monitor the components dynamically and adapt them to structural changes in the architecture. They evaluate dynamically the quality attributes of the architecture. This evaluation will ensure the correctness, robustness, security, availability, etc. As the changes take place so that the system conforms to its architecture and remains in conformance throughout its lifetime
Alami, Rachid. "Robots autonomes : du concept au robot. Architectures, représentations et algorithmes." Habilitation à diriger des recherches, Université Paul Sabatier - Toulouse III, 1996. http://tel.archives-ouvertes.fr/tel-00165562.
Pedron, Antoine. "Développement d'algorithmes d'imagerie et de reconstruction sur architectures à unités de traitements parallèles pour des applications en contrôle non destructif." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00844749.
Pedron, Antoine. "Développement d’algorithmes d’imagerie et de reconstruction sur architectures à unités de traitements parallèles pour des applications en contrôle non destructif." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112071/document.
This thesis work is placed between the scientific domain of ultrasound non-destructive testing and algorithm-architecture adequation. Ultrasound non-destructive testing includes a group of analysis techniques used in science and industry to evaluate the properties of a material, component, or system without causing damage. In order to characterize possible defects, determining their position, size and shape, imaging and reconstruction tools have been developed at CEA-LIST, within the CIVA software platform.Evolution of acquisition sensors implies a continuous growth of datasets and consequently more and more computing power is needed to maintain interactive reconstructions. General purprose processors (GPP) evolving towards parallelism and emerging architectures such as GPU allow large acceleration possibilities than can be applied to these algorithms.The main goal of the thesis is to evaluate the acceleration than can be obtained for two reconstruction algorithms on these architectures. These two algorithms differ in their parallelization scheme. The first one can be properly parallelized on GPP whereas on GPU, an intensive use of atomic instructions is required. Within the second algorithm, parallelism is easier to express, but loop ordering on GPP, as well as thread scheduling and a good use of shared memory on GPU are necessary in order to obtain efficient results. Different API or libraries, such as OpenMP, CUDA and OpenCL are evaluated through chosen benchmarks. An integration of both algorithms in the CIVA software platform is proposed and different issues related to code maintenance and durability are discussed
Kesraoui, Soraya. "Intégration des techniques de vérification formelle dans une approche de conception des systèmes de contrôle-commande : application aux architectures SCADA." Thesis, Lorient, 2017. http://www.theses.fr/2017LORIS442/document.
The design of control-command systems often suffers from problems of communication and interpretation of specifications between the various designers, frequently coming from a wide range of technical fields. In order to address the design of these systems, several methods have been proposed in the literature. Among them, the so-called mixed method (bottom-up/top-down), which sees the design realized in two steps. In the first step (bottom-up), a model of the system is defined from a set of standardized components. This model undergoes, in the second (top-down) step, several refinements and transformations to obtain more concrete models (codes, applications, etc.). To guarantee the quality of the systems designed according to this method, we propose two formal verification approaches,based on Model-Checking, in this thesis. The first approach concerns the verification of standardized components and allows the verification of a complete elementary control-command chain. The second one consists in verifying the model of architecture (P&ID) used for the generation of control programs.The latter is based on the definition of an architectural style in Alloy for the ANSI/ISA-5.1 standard. To support both approaches, two formal semi-automated verification flows based on Model-Driven Engineering have been proposed. This integration of formal methods in an industrial context is facilitated by the automatic generation of formal models from design models carried out by business designers. Our two approaches have been validated on a concrete industrial case of a fluid management system embedded in a ship
Chokor, Abbas. "Design of several centralized and decentralized multilayer robust control architectures for global chassis control." Thesis, Compiègne, 2019. http://www.theses.fr/2019COMP2514.
Global Chassis Control (GCC) is crucial task in intelligent vehicles. It consists of assisting the driver by several automated functionalities especially for active safety and comfort purposes. Due to the fact that the dynamics of these functionalities are interconnected, thus the awaited performances are sometimes contradictory. Hence, the main task in GCC field is to coordinate the different Advanced Driving Assistance Systems (ADAS) to create synergies between the interconnected dynamics in order to improve the overall vehicle performance. Several powerful coordination strategies have already been developed either in the academic world or in the industrial one to manage these interconnections. Because the active safety needs are increasing from one side, and the technology that can be embedded into vehicles is evolving, an intense research and development is still involved in the field of global chassis control. This thesis analyzes di_erent dynamics interconnections and develops new several GCC strategies where the Active Front Steering, Active Differential Braking, and the Active Suspensions are coordinated - all together or partially - to improve the vehicle overall performance i.e. the rollover avoidance, the lateral stability, the driving comfort (maneuverability), and the ride comfort. Several multilayer architectures formed by three hierarchical layers are proposed. The lower layer represents the actuators implemented into the vehicle which generate their control inputs based on the orders sent from the middle layer. The middle layer is the control layer which is responsible to generate the control inputs that minimize the errors between the desired and actual vehicle state variables i.e. the yaw, side-slip, roll, pitch, and heave motions, regardless of the driving situation. The higher layer is the decision making layer. It instantly monitors the vehicle dynamics by di_erent criteria, then, it generates weighting parameters to adapt the controllers performances according to the driving conditions i.e. to improve the vehicle's maneuverability, lateral stability, rollover avoidance, and ride comfort. The proposed architectures di_er in the control and decision layers depending on the proposed embedded actuators. For instance, the decision layers di_er in the monitored criteria and the way the decision is taken (fuzzy logic or explicit relations). The control layers di_er in structure, where centralized and decentralized controllers are developed. In the centralized architecture, one single Multi-Input-Multi-Output optimal controller generates the optimal control inputs based on the Linear Parameter Varying (LPV)/H-infinity control technique. In the decentralized architecture, the controllers are decoupled, where the Super-Twisting Sliding Mode (STSM) technique is applied to derive each control input apart. The proposed architectures are tested and validated on the professional simulator « SCANeR Studio » and on a Full vehicle nonlinear complex model. Simulation shows that all architectures are relevant to the global chassis control. The centralized one is optimal, complex and overall stability is guaranteed, while the decentralized one does not guarantee the overall stability, but it is intuitive, simple, and robust
Jean, Xavier. "Maîtrise de la couche hyperviseur sur les architectures multi-coeurs COTS dans un contexte avionique." Thesis, Paris, ENST, 2015. http://www.theses.fr/2015ENST0034/document.
We focus in this thesis on issues related to COTS multi-core processors mastering, especially regarding hard real-time constraints, in order to enable their usage in future avionics equipment. We aim at applying existing Worst Case Execution Time (WCET) evaluation methods on a set of tasks similar to those we can find in avionics software. At runtime, tasks executed among different cores are likely to access hardware resources at the same time, e.g. the main memory. It may lead to additional delays due to hardware contention, called “interferences”. Interferences slow down embedded software within ranges that may be important. Additionnally, no bound has been established for their impact on WCET when using COTS processors, that target larger markets than avionics. We try to provide guarantees that all interferences are eliminated through software, as COTS processors do not provide adequate mechanisms at hardware level. We extend deterministic software concepts that have been developed in the state of the art, in order to make them compliant with the use of legacy software. We introduce the concept of "control software", which is functionnaly neutral, is replicated among all cores, and performs active control of core's accesses to shared resources, so that concurrent accesses are temporally isolated. We formalize and study in this thesis the problem of control software feasibility on COTS processors, and questions of efficiency with regard to legacy avionics software
Simao, Jean-Marcelo. "Contribution au développement d'un outil de simulation de systèmes holoniques de production et proposition d'un méta-modèle de contrôle holonique = A contribution to the development of a HMS simulation tool and proposition of a meta-model for holonic control = Uma contribuiçao. ." Nancy 1, 2005. http://docnum.univ-lorraine.fr/public/SCD_T_2005_0022_SIMAO.pdf.
Ben, Saad Seifallah. "Conception d'un algorithme de coordination hybride de groupes de robots sous-marins communicants. Application : acquisition optique systématique et détaillée des fonds marins." Thesis, Brest, 2016. http://www.theses.fr/2016BRES0052/document.
In the underwater environment, the needs of data acquisition have significantly increased over the last decades. As electromagnetic waves show poor propagation in sea water, acoustical sensing is generally preferred. However, the emergence of small and low cost autonomous underwater vehicles (AUV) allow for rethinking the underwater use of optical sensors as their small coverage can be significantly improved by using a fleet of coordinated underwater robots.This paper presents a strategy to coordinate the group of robots in order to systematically survey the seabed to detect small objects or singularities. The proposed hybrid coordination strategy is defined by two main modes. The first mode relies on a swarm algorithm to organize the team in geometrical formation. In the second mode, the robot formation is maintained using a hierarchical coordination. A finite state machine controls the high level hybrid strategy by defining the appropriate coordination mode according to the evolution of the mission. Before sea validation, the behavior and the performance of the hybrid coordination strategy are first assessed in simulation. The control of individual robots relies on visual servoing, implemented with the OpenCV library, and the simulation tool is based on Blender software.The dynamics of the robots has been implemented in a realistic way in Blender by using the Bullet solver and the hydrodynamic coeficcients estimated on the actual robot. First results of the hybrid coordination strategy applied on a fleet of 3 AUV’s, show execution of a video acquisition task by a group of autonomous robots controlled by vision and coordinated by a hybrid strategy
Raynal, Olivier. "Architectures de dépôts et facteurs de contrôle d'un système côtier à faibles apports sédimentaires : le littoral languedocien (Golfe du Lion, Sud de la France)." Phd thesis, Montpellier 2, 2008. http://www.theses.fr/2008MON20223.
At present, the forecasting of littoral evolution presents a considerable social stake. Many studies have been achieved to better understand coastal dynamics. Such dynamics are controlled by morphology, sediment supply, hydrodynamics, eustacy. . . At different time scales. At geological time scale, deposits geometry, controlled by eustacy and subsidence, is succesfully analysed where sediment supply is high. But the littoral zones present important sediment supply variability. In low sediment supply areas, the record of coastal tracts is smaller and harder to interprete. Analyses of about 250 kilometres of new VHR seismic profiles acquired along the languedocian coast (Northern Gulf of Lion, France), tens of short cores and outcrops data allowed us to determine the three-dimensional high-resolution geometry of the coastal tracts from Quaternary to present-day. This highlighted the role of alongshore dynamics in coast where direct sediment supply is low. The concepts of protected lagoon and isolated lagoon were broughted to the fore and the effect of inherited incised valley morphology was discussed. Last, a complementary study by analogue modeling of the channel incision processes controled by eustatic and climatic changes allowed to discuss the role of incised valleys in coastal areas
Raynal, Olivier. "Architectures de dépôts et facteurs de contrôle d'un système côtier à faibles apports sédimentaires - le littoral languedocien (Golfe du Lion, Sud de la France)." Phd thesis, Montpellier 2, 2008. http://tel.archives-ouvertes.fr/tel-00542897.
Jean, Xavier. "Maîtrise de la couche hyperviseur sur les architectures multi-coeurs COTS dans un contexte avionique." Electronic Thesis or Diss., Paris, ENST, 2015. http://www.theses.fr/2015ENST0034.
We focus in this thesis on issues related to COTS multi-core processors mastering, especially regarding hard real-time constraints, in order to enable their usage in future avionics equipment. We aim at applying existing Worst Case Execution Time (WCET) evaluation methods on a set of tasks similar to those we can find in avionics software. At runtime, tasks executed among different cores are likely to access hardware resources at the same time, e.g. the main memory. It may lead to additional delays due to hardware contention, called “interferences”. Interferences slow down embedded software within ranges that may be important. Additionnally, no bound has been established for their impact on WCET when using COTS processors, that target larger markets than avionics. We try to provide guarantees that all interferences are eliminated through software, as COTS processors do not provide adequate mechanisms at hardware level. We extend deterministic software concepts that have been developed in the state of the art, in order to make them compliant with the use of legacy software. We introduce the concept of "control software", which is functionnaly neutral, is replicated among all cores, and performs active control of core's accesses to shared resources, so that concurrent accesses are temporally isolated. We formalize and study in this thesis the problem of control software feasibility on COTS processors, and questions of efficiency with regard to legacy avionics software
Mestrallet, Fabien. "Architectures intégrées pour la gestion et la fiabilisation du stockage électrochimique à grande échelle." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00917065.
Frausto, Bernal Paul Axayacatl. "ICARE-S2 : Infrastructure de confiance sur des architectures de réseaux pour les services de signature évoluée." Phd thesis, Télécom ParisTech, 2004. http://pastel.archives-ouvertes.fr/pastel-00000924.
Périn, Mathieu. "Etude des architectures de systèmes et de circuits radiofréquences pour les récepteurs à faible courant de consommation dans le domaine de l'automobile." Caen, 2011. http://www.theses.fr/2011CAEN2036.
THIS THESIS DEALS WITH THE STUDY OF SYSTEM ARCHITECTURES AND LOW CURRENT CONSUMPTION RF RECEIVER CIRCUITS FOR TARGETED AUTOMOTIVE APPLICATIONS, WORKING IN SUB-GIGAHERTZ ISM BANDS. THOSE RECEIVERS HAVE TO BE MULTI-STANDARD (ETSI, FCC, ARIB…) AND MULTI-CHANNEL. THE RECEIVER CURRENT CONSUMPTION, EXCEPT THE DIGITAL PART, MUST NOT EXCEED 10 mA, LEADING TO A 40 % REDUCTION IN COMPARISON TO THE PROPOSED INDUSTRIAL BENCHMARK, DONE AT THE BEGINNING OF THIS WORK. BASED ON RF RECEIVER STATE OF THE ART AND THEORY ASSOCIATED TO THEIR DIMENSIONING IN FUNCTION OF SPECIFICATIONS AND WANTED PERFORMANCES, TWO STRATEGIES OF CURRENT CONSUMPTION REDUCTION ARE CONSIDERED. THE FIRST ONE EMPLOYS A HETERODYNE ARCHITECTURE WITH IMAGE REJECTION, BASED ON WEAVER’S STRUCTURE WITH POLYPHASE FILTER, WHERE THE CURRENT CONSUMPTION OF THE CRITICAL BLOCKS IS OPTIMIZED IN FUNCTION OF THE RECEIVER FRONT-END GAIN CONTROL. THE SECOND ONE USES A SUB-SAMPLING ARCHITECTURE, WHERE THE CURRENT CONSUMED BY THE FREQUENCY SYNTHESIZER CAN BE REDUCED. IN BOTH CASES, RF FRONT-ENDS, COMPOSED OF DIGITALLY PROGRAMMABLE VARIABLE GAIN ATTENUATORS AND LOW NOISE AMPLIFIERS, ARE IMPLEMENTED IN TWO DIFFERENT NXP SILICON PROCESSES (40 GHz TRANSITION FREQUENCY 0. 25 μm BICMOS AND 0. 14 μm RF CMOS)
Estournes, Guilhem. "Architectures et facteurs de contrôle des bassins quaternaires immergés du précontinent armoricain : exemples de la paléovallée d'Étel (Bretagne Sud) et du bassin des Ecrehou (Golfe normand Breton)." Lorient, 2011. http://www.theses.fr/2011LORIS240.
The shortage of local aggragate ores (more particularily from alluvial origines) leads industrial companies to prospect for new potential ores including marine areas. The inner continental shelf (0-60 m) corresponds to the offshore extension of continental landscapes, reworked by eustatic, climatic and tectonic variations during the Quaternary (2. 6 Myrs-Today). The objective of this thesis is to characterize both the morphology and sedimentary filling of these basins, making the part of eustatic, climatic and tectonic influences on sediments onset. Two areas, chosen because of their good geological context representativeness, have been studied by seismic reflexion, surfacial coring and 3D topographic and sedimlentary reconstitutions. These two areas are 1) the Palaeo Valley of the Etel River (Southern Brittany) and 2) the Ecrehou Basin in the Normand-Breton Gulf. This study consists in an exploration of poorly known areas, carrying interests for both academic research (continental margins knowledge) and industrial sector (new potential material ores). It appaears that Atlantic inner shelf morphology corresponds to the remnant of fluvial topographies (Mid Pleistocene) several times reused since their onset and showing a poor sediments preservation capacity. The Etel Palaeo valley is only filled with transgressive tidal to marine deposits dated between 9 Kyrs BP to present. The onset of these valleys seems to respond to the evolution of quaternary climate dynamic (Mid Pleistocene Transition) and high frenquency eustatic variations since this period. In the Normand-Breton Gulf, the basin sedimentary filling presents a far better preservation capacity (preserving Early and Late Pleistocene deposits) associated to more active tectonic pattern than the Atlantique margin. This filling is dominated by tidal environnements. Basically, at the scale of the whole Armorican Massif, the tectonic forcing seems to modulate the effect of eustatic variations on sediment preservation. This latter is in any case maximum during transgressions and minimum or negative during sea lowstand periodes
Hariri, Alaa-Aldin Al. "Architectures numériques configurables pour le traitement rapide sur FPGA de codes correcteurs d’erreurs de la famille QC-LDPC." Electronic Thesis or Diss., Université de Lorraine, 2015. http://www.theses.fr/2015LORR0354.
Wireless connectivity has turned essential in a growing number of systems in nearly all the domains of activity, either professional or personal. The concerned applications and devices, very varied, must make use of ever increasing and changing protocols. This constantly incurs new constraints and requirements that can only be faced with permanent innovation effort in the fields of transmission techniques, hardware/software architectures and design methodologies. The reliable transmission of data at high data rates over noisy and hence unreliable channels, requires channel coding to be used most of the time employing error correcting codes. Of these, LDPC codes are among the most effective concerning their ability to achieve near Shannon limit performance. This makes them very attractive in many areas and standars (eg. DVB-S2 in digital television, IEEE 802.11n [WiFi] and IEEE 802.16e [WiMAX] in wireless networks). The work in this thesis proposes a new architectures that is fast and easily configurable for the coding and decoding of codes from the QC-LDPC sub-family of LDPC codes. The proposed encoder and decoder architectures target implementation on FPGA. These architectures provide processing speeds that can be very high thanks to highly parallel hardware structures. Configurable parameters relate to the target code characteristics and the desired degree of parallel processing. The proposed architectures have been validated for many QC-LDPC codes. Each time, different levels of parallel processing were selected to vary the trade-off between performance (processing speed, id. flow) and cost (hardware area requirements). Despite the constraints inherent to the choice of configurability, rather high flow rates can be achieved with reasonable level of parallelism. By limiting the level of parallelism, it is possible to greatly restrict the hardware costs without yet too much limiting the achieved throughputs
Guillot, Pierre. "Contribution à l'étude des architectures de radiocommunications à références d'horloges hautes fréquences : application des résonateurs BAW à la génération de fréquence de référence dans les systèmes de communication mobile." Phd thesis, Université Paris-Est, 2011. http://tel.archives-ouvertes.fr/tel-00674583.
Guillot, Pierre. "Contribution à l’étude des architectures de radiocommunications à références d’horloges hautes fréquences : application des résonateurs BAW à la génération de fréquence de référence dans les systèmes de communication mobile." Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST1025/document.
This thesis deals with the gigahertz range reference frequency generation. In a first part, this document presents the design of a 500 MHz oscillator in a 65 nm CMOS process using a 2 GHz Bulk Acoustic Wave resonator. A digital frequency control is implemented using a switched capacitor bank in parallel to the resonator. The tuning range is up to 500 kHz with a minimum step of 200 Hz. The oscillator core uses a differential topology and is designed for low phase noise (-128 dBc/Hz at 100 kHz offset) at low power consumption (0.9 mW). It is followed by a low noise divider which provides a 500 MHz output with a phase noise of -139 dBc/Hz at 100 kHz offset from the carrier. In a second part, we consider a method for the calibration of a BAW based frequency reference. In fact, the frequency variations of a BAW oscillator against process, supply, temperature and aging effects make difficult its use as a frequency reference. We propose here a method based on Kalman filtering to identify with high precision a behavioral model of this BAW reference, thus enabling its use in an open loop frequency tuning. A precision of 0.4 ppm is achieved
Rizzo, Audrey. "L'approche CRONE dans le domaine des architectures complexes des suspensions de véhicules automobiles : la suspension CRONE Hydractive." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14564/document.
This thesis follows some previous work of the CRONE team applied to carsuspensions. It allows to purpose one car suspension, called CRONE car suspension, whichimproves the compromise between low frequency road filtering and car holding and thecompromise between hight frequency road filtering and wheel holding. To hold the wheel acriterium on the wheel holding is developed. This criterium can be used to analyse and tunedall kind of car suspension around the wheel pulsation. Moreover, to fight against thecompromise between the driver input and the raod input, a control laws is developed andapplied to a bi-state car suspension called hydractive car suspension. Finally, the influence ofthe car suspension tuning on the vehicle dynamic and more precisely on the ESP, ABSsystems is studied and illustrated with some first experiments
Bringer, Yves. "Performances de nouvelles architectures machines pour la mise en oeuvre d'algorithmes de traitement et d'analyse d'image." Saint-Etienne, 1993. http://www.theses.fr/1993STET4024.