Dissertations / Theses on the topic 'Identification de systèmes robotiques'
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Laroche, Edouard. "Identification et Commande Robuste de Systèmes Électromécaniques." Habilitation à diriger des recherches, Université Louis Pasteur - Strasbourg I, 2007. http://tel.archives-ouvertes.fr/tel-00354139.
Full textCe mémoire est organisé autour des trois systèmes applicatifs traités. A chacun d'entre eux est consacré une partie distincte. Puisqu'une grande partie des problématiques scientifiques traitées est transversale et abordée pour plusieurs systèmes, j'ai choisi de les introduire dans la première partie de ce rapport.
Nasser, Habib. "Systèmes mécatroniques à base d’observateurs embarqués pour la surveillance et le pilotage de Systèmes Automatisés à Structures Variables." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4326.
Full textThis thesis deals with the modeling, simulation and control of mechatronic systems. Symbolic computation software Maple was used to generate several models with different targets for diagnosis purposes, monitoring and driver assistance. These models based both on robotic and energetic approaches, highlight the properties and characteristics of the vehicle dynamics according to the trajectory and allow to achieve Fault , Detection and Isolation (FDI) development. This initial work led to mechatronics and energy analysis applied to All Terrain Vehicles (ATV). A dynamic spiting of the studied vehicle in several functional blocks was carried out. The evolution of the coupling terms was studied and defining a global energetic sub-division for the whole system. Within the framework of the ANR project, a 16 degrees of freedom (DOF) dynamic model was developed for a farm grape harvester (G7) and for C5 car. Dynamic parameters Identification using real data in driving simulation environment proposed by Oktal (SCANeR Studio). Regarding the robust observers development, the sliding mode theory was applied. The road profiles (slope, tilt,drift) are estimated with observers. The criterion of rollover has been tested on the dynamics of a Citroen C5 car and on the G7.240.In order to have an experimental demonstrator a device using the new Arduino technology containing a set of sensors has been developed. In a last part, the dynamic behaviour of an electric kart with the field-oriented control (FOC) of its electrical engine are given. With Matlab/Simulink software and Bond Graph, a simulator of the electrical Kart has been developed
Mahé, Antoine. "Identification de systèmes par réseaux de neurones pour la commande prédictive." Electronic Thesis or Diss., CentraleSupélec, 2020. http://www.theses.fr/2020CSUP0010.
Full textDeveloping mobile robotic allow to address ever more complex task autonomously.This thesis is part of the GRoNe project which aim at improving knowledge and experimentation on this topic. In this context automation is a key element. Developing efficient control algorithm is a step in that direction. Model predictive control has shown good result and interesting advantages in mobile robotic. Implementing this algorithm require precise system modelling in order to predict their evolution. In robotic modelling is usually solved by system identification. In this context machine learning is often a powerful tool. In order to model robotic system, data collection of their behaviour both in simulation and on the real platform have been collected. Several neural network architecture have been compared. Collected sample may not correspond to the condition of target task making part of the training irrelevant. A solution to that problem is to use prioritization during the training. Two prioritization scheme are compared. Modelling is only a step toward control. Thus it is important to test the obtained model as part of the whole control algorithm. The application of this controller to a drone and a boat, in simulation as well as on the real platform, allow to study its advantages. In the end a model train with prioritization is used in a model predictive controller on the real boat to perform shore following in an artificial lac
Le, Van Luong. "Identification de systèmes dynamiques hybrides : géométrie, parcimonie et non-linéarités." Electronic Thesis or Diss., Université de Lorraine, 2013. http://www.theses.fr/2013LORR0102.
Full textIn automatic control, obtaining a model is always the cornerstone of the synthesis procedures such as controller design, fault detection or prediction... This thesis deals with the identification of a class of complex systems, hybrid dynamical systems. These systems involve the interaction of continuous and discrete behaviors. The goal is to build a model from experimental measurements of the system inputs and outputs. A new approach for the identification of linear hybrid systems based on the geometric properties of hybrid systems in the parameter space is proposed. A new algorithm is then proposed to recover the sparsest solutions of underdetermined systems of linear equations. This allows us to improve an identification approach based on the error sparsification. In addition, new approaches based on kernel models are proposed for the identification of nonlinear hybrid systems and piecewise smooth systems
Canart, Régis. "Contribution à la commande adaptative et prédictive." Lille 1, 1997. http://www.theses.fr/1997LIL10143.
Full textLe, Van Luong. "Identification de systèmes dynamiques hybrides : géométrie, parcimonie et non-linéarités." Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-00874283.
Full textAl, Mohammad Hussam A. "Contribution à la coordination commande-perception tactile dans les systèmes d'assemblage automatisés." Paris 11, 1985. http://www.theses.fr/1985PA112086.
Full textIn this thesis, we describe the dynamic command of a manipulator having six degrees of freedom. This command is shown to have kinematic and dynamic optimal properties. In part 2 a trajectory generation algorithm is presented. This algorithm is used for a manipulator or robot for non-null speed movements in Cartesian space. In the third and the fourth parts, we describe the tactile sensor which has been developed, and its use in grasping and in identifying object images
Brunot, Mathieu. "Identification of rigid industrial robots - A system identification perspective." Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/20776/1/BRUNOT_Mathieu_20776.pdf.
Full textTout, Bilal. "Identification of human-robot systems in physical interaction : application to muscle activity detection." Electronic Thesis or Diss., Valenciennes, Université Polytechnique Hauts-de-France, 2024. https://ged.uphf.fr/nuxeo/site/esupversions/36d9eab3-c170-4e40-abb6-e6b4e27aeee2.
Full textOver the last years, physical human-robot interaction has become an important research subject, for example for rehabilitation applications. This PhD aims at improving these interactions, as part of model-based controllers development, using parametric identification approaches to identify models of the systems in interaction. The goal is to develop identification methods taking into account the variability and complexity of the human body, and only using the sensor of the robotic system to avoid adding external sensors. The different approaches presented in this thesis are tested experimentally on a one degree of freedom (1-DOF) system allowing the interaction with a person’s hand.After a 1st chapter presenting the state-of-the-art, the 2nd chapter tackles the identification methods developed in robotics as well as the issue of data filtering, analyzed both in simulation and experimentally. The question of the low-pass filter tuning is addressed, and in particular the choice of the cut-off frequency which remains delicate for a nonlinear system. To overcome these difficulties, a filtering technique using an extended Kalman filter (EKF) is developed from the robot dynamic model. The proposed EKF formulation allows a filter tuning depending on the known properties of the sensor and on the confidence on the initial parameters estimations. This method is compared in simulation and experimentally to different existing methods by analyzing its sensitivity to initialization and filter tuning. Results show that the proposed method is promising if the EKF is correctly tuned.The 3rd chapter concerns the continuous identification of the parameters of the model of a passive system interacting with a robotic system, by combining payload identification methods with online identification algorithms, without external sensors. These methods are validated in simulation and experimentally with the 1-DOF system whose handle is attached to elastic rubber bands to emulate a passive human joint. The analysis of the effects of the online methods tuning highlights a necessary trade-off between the convergence speed and the accuracy of the parameters estimates. Finally, the comparison of the payload identification methods shows that methods identifying separately the robotic system and the passive human parameters give better accuracy and a lower computation complexity.The 4th chapter deals with the identification during the human-robot interaction. A quadratic stiffness model is proposed to better fit the passive human joint behavior than a linear stiffness model. Then, this model is used with an iterative identification method based on outlier rejection technique, to detect the human user muscle activity without external sensors. This method is compared experimentally to a non-iterative method that uses electromyography (EMG), by adapting the 1-DOF system to interact with the wrist and to allow the detection of the flexor and extensor muscle activity of two human users. The proposed iterative identification method not using EMG signals achieves results close to those obtained with the non-iterative method using EMG signals when a model that correctly represents the passive human joint behavior is selected. The muscle activity detection results obtained with both methods show a satisfactory level of similarity compared to those obtained directly from EMG signals
Fellouah, Rabah. "Contribution au diagnostic de pannes pour les systèmes différentiellement plats." Phd thesis, INSA de Toulouse, 2007. http://tel.archives-ouvertes.fr/tel-00206317.
Full textBahloul, Abdelkrim. "Sur la commande des robots manipulateurs industriels en co-manipulation robotique." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS511/document.
Full textIn this thesis, we were interested in the control of industrial manipulators in co-manipulation mode with a human operator for the handling of heavy loads. First, we have presented an overview of existing studies in this framework. Then, we have addressed the modeling and the identification of dynamic parameters for the Denso VP-6242G robot. We have used the OpenSYMORO software to calculate its dynamical model. After a detailed presentation of the method for identifying the robot's parameters, we have applied it to the case of our robot. This allowed us to obtain a vector of the parameters which guarantees a positive definite inertia matrix for any configuration of the robot, as well as a good quality of reconstruction of the torques in the case of constant joint velocities or in the case of variable ones over time. To continue, we have detailed the new features that have been proposed for the online trajectory generator, for which the control scheme is based on. We have presented a method for estimating the operator's force from the measurements of the interaction force between the robot and the operator, while taking into account for the penalization of the operator's force in order to have an information of this last which allows to generate a trajectory that respects the limits of workspace. Some tests of the trajectory generator simulating different possible scenarios have allowed us to check the effectiveness of the new proposed features. The generator makes it possible to produce a trajectory in the three-dimensional workspace according to the direction of the force applied by the operator, which contributes to fulfill the requirement of transparency that is sought in a co-manipulation. In the last part, we have presented and validated, in simulation, an impedance control whose reference trajectories are delivered by the proposed generator. The obtained results have shown a good trajectory tracking. On the other hand, the satisfaction of the virtual bounds of the workspace has also been nicely taken into account. However, the corresponding articular trajectories can cross the bounds defined to preserve the integrity of the robot
Srour, Ali. "Planification robuste pour systèmes robotiques." Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. http://www.theses.fr/2024URENS072.
Full textA key challenge for autonomous systems is operating under real-world uncertainties. Robots rely on models of their environment and themselves for decision- making, but these models are inherently approximations. Consequently, uncertain parameters can lead to significant discrepancies be- tween the intended and actual system behavior. This thesis addresses the issue of para- metric uncertainties by developing trajectories that are intrinsically robust. Through optimizing these trajectories within the closed-loop system using novel concepts of state and in- put sensitivities introduced in this work, the approach enhances robot performance in uncertain conditions. The primary goal of this thesis is to extend and apply these sensitivity-based methods for robust trajectory planning. The validity of the proposed optimization frame- work is empirically assessed through extensive statistical campaigns, both in simulations and real-world experiments, on two widely- used robotic platforms: a quadrotor drone and a robotic manipulator
Drouet, Philippe. "Modélisation, identification et compensation des erreurs de positionnement de manipulateurs à très haute précision sous chargement variable : application à un positionneur médical de patients pour le traitement du cancer par protonthérapie." Poitiers, 1999. http://www.theses.fr/1999POIT2270.
Full textBellot, Delphine. "Contribution à l'analyse et à la synthèse de schémas de commande référencée vision." Toulouse 3, 2002. http://www.theses.fr/2002TOU30211.
Full textBoisseau, Bruno. "Commande événementielle : applications aux systèmes robotiques." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT037/document.
Full textControl system theory has first been built for analog controllers. In this context, it was relevant to use a continuous framework to design a control feedback function. Nowadays, digital technologies are supplanting analog solutions due to several advantages (cost, noise, resistance, integration...). Signal is held constant between periodic triggers given by a digital clock.Event-based (or event-triggered) control aims to improve the periodic sampling scheme by proposing a method in which updates are triggered by an event function.In this thesis new event-based designs are detailled and tested on real-time systems.The most original contribution of this thesis is the use of an event-triggered design for a problem of collision avoidance between a quadrotor and a known environment
Li, Zetao. "Contribution à l'élaboration d'algorithmes d'isolation et d'identification de défauts dans les systèmes non linéaires." Phd thesis, INSA de Toulouse, 2006. http://tel.archives-ouvertes.fr/tel-00127735.
Full textBueno, Ruas de Oliveira Lucas. "Conception architecturale des systèmes robotiques orientée services." Thesis, Lorient, 2015. http://www.theses.fr/2015LORIS374/document.
Full textRobotics has experienced an increasing evolution and interest from the society in recent years. Robots are no longer produced exclusively to perform repetitive tasks in factories, they have been designed to collaborate with humans in several important application domains. Robotic systems that control these robots are therefore becoming larger, more complex, and difficult to develop. In this scenario, Service-Oriented Architecture (SOA) has been investigated as a promising architectural style for the design of robotic systems in a flexible, reusable, and productive manner. Despite the existence of a considerable amount of Service-Oriented Robotic Systems (SORS), most of them have been developed in an ad hoc manner. The little attention and limited support devoted to the design of SORS software architectures may not only hamper the benefits of SOA adoption, but also reduce the overall quality of robotic systems, which are often used in safety-critical contexts. This thesis aims at improving the understanding and systematization of SORS architectural design
Huard, Benoît. "Contribution à la modélisation non-linéaire et à la commande d'un actionneur robotique intégré pour la manipulation." Thesis, Poitiers, 2013. http://www.theses.fr/2013POIT2262/document.
Full textThe realization of dexterous manipulation tasks requires a complexity in robotic hands design as well as in their control laws synthesis. A mecatronical optimization of these systems helps to answer for functional integration constraints by avoiding external force sensors. Back-drivable mechanics allows the free-space positioning determination of such system as far as the detection of its interaction with a manipulated object thanks to proprioceptives measures at electric actuator level. The objective of this thesis is to synthesize a control law adapted to object manipulation by taking into account these mechanical properties in a one degree-of-freedom case. The proposed method is based on a robust control according to structural non-linearities due to gravitational effects and dry frictions on the one hand and with regard to a variable rigidity of manipulated objects on the other hand. The chosen approach requires a precise knowledge of the system configuration at all time. A dynamic representation of its behavior enables a software sensor synthesis for the exteroceptives variables estimation in a control law application purpose. The different steps are experimentally validated in order to justify the chosen approach leading to object manipulation
Lasserre, Patricia. "Vision pour la robotique en environnement naturel." Phd thesis, Université Paul Sabatier - Toulouse III, 1996. http://tel.archives-ouvertes.fr/tel-00139846.
Full textMansard, Nicolas. "Enchaînement de tâches robotiques." Rennes 1, 2006. http://www.theses.fr/2006REN1S097.
Full textBrener, Nicolas. "Analyse et conception de systèmes robotiques modulaires et réticulaires." Paris 6, 2009. http://www.theses.fr/2009PA066370.
Full textRosendo, Juan luis. "Techniques robustes pour le contrôle automatique des systèmes robotiques." Thesis, Brest, École nationale supérieure de techniques avancées Bretagne, 2019. http://www.theses.fr/2019ENTA0004.
Full textThis work seeks to mitigate the effects of constraints on mobile robotic systems. To this end, auxiliary control loops and robust tuning techniques are proposed. The former are proposed to mitigate the effects of constraints on the input and output of the systems through the modification of the motion parameter in path following applications.Then, PID controllers are considered as a structural constraint, given its wide use in robotics particularly at low control level. A robust tuning methodology considering this constraint is proposed which achieves good performancelevels even when facing disturbances. Finally, to deal with robustness in presence of robots nonlinearity constraints, an analysis and tuning tool for sliding mode controllers is proposed. The particularity of this tuning method, based on global optimization and interval techniques,is that it allows generating tuning maps of the parameter regions where the desired performance criterion is fulfilled. All the proposed strategies are put into practice, through real experimentation or invalidated simulators, over the AUV Ciscrea available at ENSTA Bretagne
Dubois, Michel. "MASL, Langage de controle multi-agents robotiques." Lorient, 2008. http://www.theses.fr/2008LORIS133.
Full textThe classical approach for Multi-Agent System (MAS) Control, especially autonomous and robotic ones, deals first from a microscopic point of view: each agent embed a control program with communication/synchronization primitives that enable cooperation between agents. The emergence of a global behaviour from a macroscopic point of view can only be observed afterwards. In this context, MASL offers a macroscopic and unified approach with heterogeneous and distributed calculations over deliberative, reactive or hybrid agents. In this high level language, regardless of the runtime, each concurrent agent locally decides its participation in a collective execution block named an e-block. Each e-block is an anonymous collective program that runs over an agent network following local conditions. The orchestral mode (scalar, asynchronous, synchronous) is statically fixed by a shared block attribute. The communication use shared memory, events, synchronous messages passing, and asynchronous messages passing. Heterogeneous agents are managed with heritage and polymorphism. Permeability mechanism, dealing with agent autonomy, allows an agent to dynamically filter calls to its interface in respects to the sender position in the e-block hierarchy. In dynamic task allocation of agents, auto failover and recovery, agent replacement in a robot fleet (case of agent failure, loss of a mandatory functionality for the mission) an e-block is an entry point of a collaborative work. In the case of synchronous e-block, the programming paradigm is the data parallel model with iterative task for waves of agents. Finally, MASL offers advances in the field of MAS (dynamic belonging to groups, accuracy of the pace of actions to undertake to enable a desired cooperation) and for the management of errors
Milia, Valentin. "Couplage de modèles de chimie quantique et d'algorithmes haute performance pour l'exploration globale du paysage énergétique de systèmes atomiques et moléculaires." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP095.
Full textThe primary aim of this thesis is to develop efficient methods for characterizing molecular conformations at a quantum level. Various methods devoted to the computation of molecular potential energy are reviewed, as well as the most popular potential energy surfaces (PES) global exploration schemes. In this context, a key contribution of this thesis is the coupling of the robotics-inspired Iterative Global exploration and LOcal Optimization (IGLOO) method, implemented in the MoMA software, with the quantum Density-Functional based Tight-Binding (DFTB) potential, implemented in the deMonNano software. The IGLOO algorithm integrates the motion planning Rapidly-exploring Random Trees (RRT) algorithm with local optimization and structural filtering. A proof of concept has been done through the identification of low-energy conformations of the alanine dipeptide.The IGLOO/DFTB coupling has been applied to the mapping of the PES of three close-sized molecules of the phthalate family (dibutyl phthalate DBP, benzyl butyl phthalate BBP and di-2-ethylhexyl phthalate DEHP), providing detailed insights into their different conformational landscapes. Various geometrical descriptors have been used to analyze their structure-energy relationships. Coulomb interactions, steric hindrance, and dispersive interactions have been found to drive the geometric properties and a strong correlation has been evidenced between the two dihedral angles describing the side-chains orientation of the phthalate molecules. The results demonstrate the method's capability to identify low-energy minima without prior knowledge of the PES.Furthermore, an innovative algorithm for the large-scale generation of molecular structures, including a conformational variety, is presented. It combines molecular graph generation with atom or fragment addition techniques. It is applied to provide an extensive database of 3D structures of hydrogenated amorphous carbon (a-CH) molecules. The analysis of the database generated in this study provides a comprehensive understanding of the relationship between the geometrical and electronic descriptors of a-C:H structures. These properties are compared with those of compact Polycyclic Aromatic Hydrocarbons and linear chains, representing limit cases.Finally, a review is given on methods aiming at identifying saddle points and transition paths between low-energy conformations on the PES. A first step toward the identification of transition paths between low-energy conformations using a motion planning algorithm, known as Transition-based Rapidly-exploring Random Trees (T-RRT), is presented. A similarity measure, designated as the Symmetrized Segment-Path Distance (SSPD), is used to compare the generated trajectories. Subsequently, a clustering technique, namely the Hierarchical Clustering Analysis (HCA), is employed to group similar trajectories in order to identify the common pathways, thereby providing valuable insights into the dynamics of conformational changes. The methodology has been successfully applied to the identification of low-energy paths between two minima of the alanine dipeptide PES.Overall, the research presents significant advancements in the exploration of complex molecular PES at a quantum level including (i) the IGLOO/DFTB coupling (ii) a novel algorithm for 3D structure generation of large-scale molecules and (iii) an original scheme allowing for the identification of multiple transition paths. Correlations between the structural, energetic and electronic properties have been evidenced for the polluting phthalate molecules and astrophysically relevant hydrogenated amorphous carbon (a-CH) molecules. These contributions pave the way for future research, aiming to extend these methods to larger and more complex systems
Schorsch, Julien. "Contributions à l'estimation paramétrique des modèles décrits par les équations aux dérivées partielles." Electronic Thesis or Diss., Université de Lorraine, 2013. http://www.theses.fr/2013LORR0143.
Full textA large variety of natural, industrial, and environmental systems involves phenomena that are continuous functions not only of time, but also of other independent variables, such as space coordinates. Typical examples are transportation phenomena of mass or energy, such as heat transmission and/or exchange, humidity diffusion or concentration distributions. These systems are intrinsically distributed parameter systems whose description usually requires the introduction of partial differential equations. There is a significant number of phenomena that can be simulated and explained by partial differential equations. Unfortunately all phenomena are not likely to be represented by a single equation. Also, it is necessary to model the largest possible number of behaviors to consider several classes of partial differential equations. The most common are linear equations, but the most representative are non-linear equations. The nonlinear equations can be formulated in many different ways, the interest in nonlinear equations with linear parameters varying is studied. The aim of the thesis is to develop new estimators to identify the systems described by these partial differential equations. These estimators must be adapted with the actual data obtained in experiments. It is therefore necessary to develop estimators that provide convergent estimates when one is in the presence of missing data and are robust to measurement noise. In this thesis, identification methods are proposed for partial differential equation parameter estimation. These methods involve the introduction of estimators based on the instrumental variable technique
Chapelle, Frédéric. "Évaluation de systèmes robotiques et comportements complexes par algorithmes évolutionnaires." Paris 6, 2002. http://www.theses.fr/2002PA066073.
Full textFoughali, Mohammed. "Vérification Formelle des Modules Fonctionnels de Systèmes Robotiques et Autonomes." Thesis, Toulouse, INSA, 2018. http://www.theses.fr/2018ISAT0033.
Full textThe goal of this thesis is to add to the efforts toward the long-sought objective of secure and safe robots with predictable and a priori known behavior. For the reasons given above, formal methods are used to model and verify crucial properties, with a focus on the functional level of robotic systems. The approach relies on automatic generation of formal models targeting several frameworks. For this, we give operational semantics to a robotic framework, then several mathematically proven translations are derived from such semantics. These translations are then automatized so any robotic functional layer specification can be translated automatically and promptly to various frameworks/languages. Thus, we provide a mathematically correct mapping from functional components to verifiable models. The obtained models are used to formulate and verify crucial properties (see examples above) on real-world complex robotic and autonomous systems. This thesis provides also a valuable feedback on the applicability of formal frameworks on real-world, complex systems and experience-based guidelines on the efficient use of formal-model automatic generators. In this context, efficiency relates to, for instance, how to use the different model checking tools optimally depending on the properties to verify, what to do when the models do not scale with model checking (e.g. the advantages and drawbacks of statistical model checking and runtime verification and when to use the former or the latter depending on the type of properties and the order of magnitude of timing constraints)
Lopez-Varela, Carmen Guadalupe. "Détection et diagnostic basés cohérence pour les systèmes à événements discrets : vers la prise en compte des erreurs de modélisation." Phd thesis, INSA de Toulouse, 2007. http://tel.archives-ouvertes.fr/tel-00244013.
Full textSlimi, Hamid. "Système d'Assistance à la Conduite pour Véhicules à Deux-Roues Motorisés." Phd thesis, Université d'Evry-Val d'Essonne, 2012. http://tel.archives-ouvertes.fr/tel-00695715.
Full textZemiti, Nabil. "Commande en Effort des Systèmes Robotiques pour la Chirurgie Mini-Invasive." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00011767.
Full textLa réponse apportée à ces questions prend ici la forme d'un système robotique bâti autour :
- d'un bras compact de cinématique sphérique ;
- d'un capteur d'efforts placé à l'extérieur du patient permettant une estimation fine des interactions distales ;
- d'une commande en effort dont la passivité est garantie pour toutes les interactions ; celle-ci est déclinée selon plusieurs modes (retour explicite, commande en impédance, téléopération à retour d'efforts).
L'ensemble des propositions méthodologiques est validé de façon systématique sur un prototype de laboratoire développé dans le cadre de ce travail. Les expériences incluent des validations in vivo sur animal, depuis des tâches élémentaires jusqu'à l'utilisation du prototype comme "main gauche" pour une opération de cholécystectomie.
Buessler, Jean-Luc. "Architectures neuro-mimétiques modulaires : application à l'asservissement visuel de systèmes robotiques." Mulhouse, 1999. http://www.theses.fr/1999MULH0587.
Full textJoukhadar, Ammar. "Simulation dynamique et applications robotiques." Phd thesis, Grenoble INPG, 1997. http://www.theses.fr/1997INPG0069.
Full textWe describe models and algorithms designed to produce efficient and physically consistent dynamic simulations. These models and algorithms have been implemented within the RobotΦ system\cite(RAP95) which can potentially be configured for a large variety of interven\-tion-style tasks such as dextrous manipulations with a robot hand; manipulation of non-rigid objects; tele-programming of the motions of an all-terrain vehicle; and some robot assisted surgery tasks (e. G. Positioning of an artificial ligament in knee surgery). The approach uses a novel physically based modeling technique to produce dynamic simulations which are both efficient and consistent according to the laws of the Physics. The main advances over previous works in Robotics and Computer Graphics fields are twofold: the development of a unique framework for simultaneously processing motions, deformations, and physical interactions; and the incorporation of appropriate models and algorithms for obtaining efficient processing times while insuring consistent physical behaviors
Nguyen, Anh vu. "Matériaux composites à renfort végétal pour l'amélioration des performances de systèmes robotiques." Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22606/document.
Full textImprovement of the robot’s performances is a major challenge in the industrial field. In general, improvement objectives are increasing workspace, transportable capacity, speed and precision of the robot. To achieve these objectives, it must increase rigidity, reduce weight and increase damping capacity of the robot. Currently, the robots are generally made of metals: aluminum or steel, which limits their performances due to low damping capacity of these materials.Composite materials present an advantage to combine different materials, which leads to a variety of composite material properties. Among the types of reinforcements, carbon fibers show high modulus that enables robotic parts with high static rigidities to be designed. However, carbon fibers have generally a low damping capacity. Natural fibers have low density, good specific properties and high damping capacity.This thesis focuses on the improvement of the performances of the 3CRS parallel robot by using the composite material to redesign robot parts initially made of aluminum. The thesis begins with static and dynamic characterizations of the original robot. Then, the shape of segments of the robotic arms is optimized with respect to applying force on the robot. A hybrid laminated composite reinforced with carbon fibers and flax fibers is proposed for the use. This combination enables to combine the advantages of two fiber types in a composite for using in high loaded components. The structure of the new hybrid laminated composite is optimized and a composite segment is then fabricated in order to validate the design. Finally, the analysis of the new robot with composite arms is executed. The result shows that the new robot has a slightly higher rigidity, lighter mass and considerably greater damping capacity in comparison with the original robot. Therefore, the application of the hybrid composite could improve the static and dynamic performances and increases considerably the accuracy in operation of the robot 3CRS
Fragkoulis, Dimitrios. "Détection et localisation des défauts provenant des capteurs et des actionneurs : application sur un système non linéaire." Phd thesis, Université Paul Sabatier - Toulouse III, 2008. http://tel.archives-ouvertes.fr/tel-00339630.
Full textNganga-Kouya, Donatien. "Commande non linéaire hybride force/position pour les systèmes robotiques avec contraintes holonomiques." Mémoire, École de technologie supérieure, 2003. http://espace.etsmtl.ca/728/1/NGANGA%2DKOUYA_Donatien.pdf.
Full textTrad, Hatem. "Un environnement de pilotage dirigé par les objectifs pour les applications robotiques manufacturières." Chambéry, 1996. http://www.theses.fr/1996CHAMS041.
Full textSchorsch, Julien. "Contributions à l'estimation paramétrique des modèles décrits par les équations aux dérivées partielles." Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-00913579.
Full textHungr, Nikolai. "Conception et évaluation de systèmes robotiques de ponction d'aguilles percutanées sous contrôle d'imagerie médicale." Phd thesis, Université de Grenoble, 2014. http://tel.archives-ouvertes.fr/tel-00997017.
Full textAkhtar, Nadeem. "Contribution à la spécification formelle et à la vérification de systèmes multi-agents robotiques." Lorient, 2010. http://www.theses.fr/2010LORIS190.
Full textOne of the most challenging tasks in software engineering for multi-agent robotic systems is to ensure correctness properties of safety and liveness. As these systems have concurrency, and often have dynamic environments, the formal specification and verification of these systems along with step-wise refinement from abstract to concrete concepts play a major role in system correctness. The problem statement is: How can a safe multi-agent robotic system be developed? Here by safe the focus is on correctness properties which can be described by a combination of safety and liveness. How can safety and liveness properties be enforced during the development of multi-agent robotic system? Our objectives are to propose a development approach based on a combination of methods and techniques that allow for formal verification and evaluation during specification definition and that is also flexible. An approach which supports analysis with respect to functional, as well as non-functional properties by step-wise refinement from abstract to concrete specifications and then formal verification of these specifications. We have analysed the development process of a robotic multi-agent system after classifying it in the major phases of requirement specifications, verification specifications, architecture specifications and implementation. Formal methods and languages are based on a solid mathematical foundation. To catch up with the complexity problems in multi-agent systems and get significant results with formal analysis, we must cope with complexity at every stage of development: from the specification phase to the analysis, design and verification phase. Formal verification can be used for exhaustive investigation of system space thus ensuring that undetected failures in the behaviour are excluded. We construct the system incrementally from subcomponents, based on software architecture. State reduction is achieved by hiding actions and minimising; property checks remain in the minimised subcomponents. Each component of a specification is described as LTS, which has all the possible states a component may reach and all possible transitions it may perform. The reasons for having a formal foundation for the languages and tools are: (1) to enable rigorous analysis of system properties; (2) to be as certain as possible that the specifications, transformations, and implementation are property-preserving and error-free; (3) to improve rigor and quality of the whole development process; (4) to provide a firm foundation during the adaptation and evolution process; (5) to improve documentation and understanding of specifications. A solution has been proposed for formal specification and verification of safety and liveness properties. Our contributions are (1) an approach based on a combination of methods to allow for formal verification and evaluation during requirement specifications, verification specifications, architecture specifications, and implementation; (2) checking safety and liveness properties of correctness during each development phase; (3) a multi-agent robotic system case study to exemplify formal specifications and verification; (4) a combination of process algebra and finite automata based techniques to define the formal specifications of our system, using a model-checking method and verifying all possible flow of concurrent executions; (5) identifying the benefits of formal methods for multi-agent robotic systems. We have used the Gaia multi-agent method for requirement specifications; Labelled Transition Systems (LTS) based finite automata techniques, which take Finite State Process (FSP) as input language for verification specification; The π-ADL dot NET is used to define architecture specifications and check the static, as well as dynamic aspects of architecture; Then the system is implemented by using Service-Oriented Architecture (SOA) based Microsoft Robotics Developer Studio (MRDS) simulation environment
Abci, Boussad. "Approche informationnelle pour la navigation autonome tolérante aux défauts : application aux systèmes robotiques mobiles." Thesis, Lille 1, 2019. http://www.theses.fr/2019LIL1I073.
Full textOver the last years, autonomous navigation for mobile robot systems has known an increasing interest from the scientific community. This is mainly due to the diversity of its applications and the different challenges that it represents. Without any human intervention, autonomous navigation must be safe, reliable and accurate. Nevertheless, it may be subject to various degradations that could compromise its objective. Indeed, external disturbances, as well as sensor and actuator faults, may affect the different aspects of autonomous navigation, which are localization, path planning and trajectory tracking. This is why we are devoting this thesis to the design of new algorithms that contribute to make the navigation system robust against external disturbances and tolerant to sensor and actuator fauts. We have adopted a residual generation based fault-diagnosis strategy combined with a robust sliding mode controller that is robust against a certain class of perturbations that are not necessary uniformly bounded. The proposed diagnostic layer is purely informational. It is based on the use of two information filters with different evolution models, and the divergences of Bhattacharyya and Kullback-Leibler for residual design. These residuals are evaluated using statistical methods, in order to detect, isolate then exclude sensor and actuator faults from the navigation system. The proposed approach is applied to different differential drive mobile-robot systems. Experimental results obtained by using the CRIStAL robotic platform, so-called PRETIL, are presented and discussed
Do, Hoang Quynh Anh. "Analyse et justification de la sécurité de systèmes robotiques en interaction physique avec l’humain." Thesis, Toulouse, INPT, 2015. http://www.theses.fr/2015INPT0025/document.
Full textRobotic systems that continuously adapt to their environment and physically interact with human are increasingly used in various fields like personal assistance or factory work. They are characterised by their ability to adapt to the environment, to take decision in the light of their perception of the environment and particularly of the human. As the failure of such systems may lead to catastrophic consequences, analysis and justification of the level of confidence in these systems with regards to safety, and furthermore their certification is a real challenge. The construction of a Safety Case is one of the means that can be used to support the certification of such systems. It is aimed at describing and justifying how every hazard has been mitigated and its severity maintained as low as reasonably possible. However, for robotic systems that have to deal with many uncertainties, there is a lack of a systematic approach to support the construction of their Safety Case and the assessment of its underlying confidence. Our research aims at contributing to the development of such a systematic approach starting with a risk analysis focusing on human-robot interactions, followed by Safety Case construction from formalized models and finally an automatic assessment of the confidence in safety argumentation. As a case study, the safety of a rehabilitation robot for strolling is analysed and justified based on the approaches developed in this thesis
Khayati, Karim. "Commande des systèmes sous frottement utilisant le formalisme LMI : application aux systèmes robotiques avec contact et aux actionneurs pneumatiques." Mémoire, École de technologie supérieure, 2006. http://espace.etsmtl.ca/530/1/KHAYATI_Karim.pdf.
Full textThieffry, Roland. "Etude et Validation de Systèmes d'Aide à l'Autonomie des Personnes Handicapées." Paris 6, 2004. http://www.theses.fr/2004PA066320.
Full textHo, Dinh Khanh. "Gestion des ressources et de l’énergie orientée qualité de service pour les systèmes robotiques mobiles autonomes." Thesis, Université Côte d'Azur, 2020. http://www.theses.fr/2020COAZ4000.
Full textMobile robotic systems are becoming more and more complex with the integration of advanced sensing and acting components and functionalities to perform the real required missions. For these technical systems, the requirements are divided into two categories: functional and non-functional requirements. While functional requirements represent what the robot must do to accomplish the mission, non-functional requirements represent how the robot performs the mission. Thus, the quality of service and energy efficiency of a robotic mission are classified in this category. The autonomy of these systems is fully achieved when both functional and non-functional requirements are guaranteed without any human intervention or any external control. However, these mobile systems are naturally confronted with resource availability and energy capacity constraints, particularly in the context of long-term missions, these constraints become more critical. In addition, the performance of these systems is also influenced by unexpected and unstructured environmental conditions in which they interact. The management of resources and energy during operation is therefore a challenge for autonomous mobile robots in order to guarantee the desired performance objectives while respecting constraints. In this context, the ability of the robotic system to become aware of its own internal behaviors and physical environment and to adapt to these dynamic circumstances becomes important.This thesis focuses on the quality of service and energy efficiency of mobile robotic systems and proposes a hierarchical run-time management in order to guarantee these non-functional objectives of each robotic mission. At the local management level of each robotic mission, a Mission Manager employs a reinforcement learning-based decision-making mechanism to automatically reconfigure certain key mission-specific parameters to minimize the level of violation of required performance and energy objectives. At the global management level of the whole system, a Multi-Mission Manager leveraged rule-based decision-making and case-based reasoning techniques monitors the system's resources and the responses of Mission Managers in order to decide to reallocate the energy budget, regulate the quality of service and trigger the online learning for each robotic mission.The proposed methodology has been successfully prototyped and validated in a simulation environment and the run-time management framework is also integrated into our real mobile robotic system based on a Pioneer-3DX mobile base equipped with an embedded NVIDIA Jetson Xavier platform
Babet, Fabrice. "Modélisation par équations aux dérivées partielles des retards pour la commande des systèmes robotiques télé-opérés." Orléans, 2008. http://www.theses.fr/2008ORLE2043.
Full textCoste-Manière, Ève. "Synchronisme et asynchronisme dans la programmation des systèmes robotiques : apport du langage Esterel et de concepts objets." Paris, ENMP, 1991. http://www.theses.fr/1991ENMP0273.
Full textJacquet, William. "Paradigme connexionniste pour l'apprentissage de fonctions robotiques : applications aux problèmes d'asservissement visuel de bras manipulateurs." Mulhouse, 2001. http://www.theses.fr/2001MULH0650.
Full textMendoume, Minko Ignace Davy. "Identification des systèmes dynamiques stochastiques." Phd thesis, Clermont-Ferrand 2, 2005. https://tel.archives-ouvertes.fr/tel-00676619/document.
Full textScesa, Vincent. "Contrôleurs neuronaux dynamiques et apprentissage : du perfectionnement des algorithmes à leur application temps réel sur des systèmes robotiques." Versailles-St Quentin en Yvelines, 2006. http://www.theses.fr/2006VERS0009.
Full textHow can we control a system that is difficult to model or with an incomplete knowledge?When theorical modeling reaches its limits, the cooperation between observation, learning and experience could answer this question and fill the lack of conventional techniques. This thesis gives a complete view of how to carry out this kind of control methodology for complex dynamical systems. Through a proposed classification of the current control techniques, the algorithm choices are first exposed (CTRNN networks - Continuous Time Recurrent Neural Networks - and BPTT learning -BackPropagation Through Time). To enable the stabilization and the amelioration of their behaviour, adaptations and improvements are then proposed and experimentally validated. Next, the algorithmic principles carried out to follow the real time constraints of our applications shows a way to implement this controller in industrial electronic units. At last, the experiments carried out on two polyarticulated dynamical systems: the road simulator of the BIA company and the biped robot of the LISV laboratory, confronts the developed methodology with real applications and associated constraints. A discussion on the use of our controller for the command of this kind of system is finally given
Kazan, AbdulKarim. "Intégration des aspects robotiques, tolérancement et comportement mécanique pour la conception assistée par ordinateur de systèmes poly-articulés." Grenoble INPG, 2003. http://www.theses.fr/2003INPG0072.
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