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Academic literature on the topic 'Robot sous-marins autonome'
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Dissertations / Theses on the topic "Robot sous-marins autonome"
Salgado, Jimenez Tomas. "Contribution à la commande d'un robot sous-marin autonome de type torpille." Montpellier 2, 2004. http://www.theses.fr/2004MON20208.
Full textPham, Hoang Anh. "Coordination de systèmes sous-marins autonomes basée sur une méthodologie intégrée dans un environnement Open-source." Electronic Thesis or Diss., Toulon, 2021. http://www.theses.fr/2021TOUL0020.
Full textThis thesis studies the coordination of autonomous underwater robots in the context of coastal seabed exploration or facility inspections. Investigating an integrated methodology, we have created a framework to design and simulate low-cost underwater robot controls with different model assumptions of increasing complexity (linear, non-linear, and finally non-linear with uncertainties). By using this framework, we have studied algorithms to solve the problem of formation control, collision avoidance between robots and obstacle avoidance of a group of underwater robots. More precisely, we first consider underwater robot models as linear systems of simple integrator type, from which we can build a formation controller using consensus and avoidance algorithms. We then extend these algorithms for the nonlinear dynamic model of a Bluerov robot in an iterative design process. Then we have integrated a Radial Basis Function neural network, already proven in convergence and stability, with the algebraic controller to estimate and compensate for uncertainties in the robot model. Finally, we have presented simulation results and real basin tests to validate the proposed concepts. This work also aims to convert a remotely operated ROV into an autonomous ROV-AUV hybrid
Bazeille, Stéphane. "Vision sous-marine monoculaire pour la reconnaissance d'objets." Brest, 2008. http://www.theses.fr/2008BRES2023.
Full textIn underwater context, traditional sensing methods like sonar are used at large range for detection and classification of objects. For a few years, the sonar sensor has been complemented by a vision sensor more efficient at short range for the approach, the object recognition and the intervention phases. Indeed, the camera has noticeable advantages like for example high resolution, simple interpretation or low cost. Today, it equips nearly any scientific, industrial or military underwater vehicles. Currently, underwater vehicles are rather distance controlled by a manipulator, and automatic processing is really uncommon. However, automatic processing is an essential technology for the AUV development. These kinds of vehicles are very popular today with the expansion of the market related to the security and the exploitation of the marine resources. This thesis aims at supplying the required advances and promoting the use of video technologies. The proposed study addresses the problem of automatic processing for underwater objects recognition, with a particular focus on man-made objects. Observed underwater scenes are traditionally simpler but more limited in depth than urban scenes or inside building scenes. Nevertheless, this context presents very specific difficulties like lighting variations and water turbidity which limit visibility and degrade considerably images. As a consequence processing is difflcult and require the development of new robotic vision algorithms
Vega, Emanuel Pablo. "Conception orientée-tâche et optimisation de systèmes de propulsion reconfigurables pour robots sous-marins autonomes." Thesis, Brest, 2016. http://www.theses.fr/2016BRES0067/document.
Full textIn this PhD thesis, the optimization of the propulsion and control of AUVs is developed. The hydrodynamic model of the AUVs is examined. Additionally, AUV propulsion topologies are studied and models for fixed and vectorial technology are developed. The fixed technology model is based on an off the shelf device, while the modeled vectorial propulsive system is based on a magnetic coupling thruster prototype developed in IRDL (Institut de Recherche Dupuy de Lôme) at ENI Brest. A control method using the hydrodynamic model is studied, its adaptation to two AUV topologies is presented and considerations about its applicability will be discussed. The optimization is used to find suitable propulsive topologies and control parameters in order to execute given robotic tasks, speeding up the convergence and minimizing the energy consumption. This is done using a genetic algorithm, which is a stochastic optimization method used for task-based design.The results of the optimization can be used as a preliminary stage in the design process of an AUV, giving ideas for enhanced propulsive configurations. The optimization technique is also applied to an IRDL existing robot, modifying only some of the propulsive topology parameters in order to readily adapt it to different tasks, making the AUV dynamically reconfigurable
Jalaoui, Abdellah El. "Gestion contextuelle de tâches pour le contrôle d'un véhicule sous-marin autonome." Montpellier 2, 2007. http://www.theses.fr/2007MON20145.
Full textBaccou, Philippe. "Navigation et positionnement sur une balise d'engins sous-marins autonomes." Montpellier 2, 2001. http://www.theses.fr/2001MON20172.
Full textDe, Césare Cédric. "Acquisition de mosaïques d'images complètes à l'aide d'un engin sous-marin autonome." Nice, 2009. http://www.theses.fr/2009NICE4055.
Full textDuring the last years, visual imagery has been more and more used in the underwater environment, as well as an help for navigation than as a tool for cartography allowing the study and survey of seafloors. These operations of survey consist principally in the establishment of maps of the seafloor on large zones (several km2). The constraints of the environment (depth, low absorption of light, etc…) impose as systematic the use of autonomous underwater vehicles (AUV), and this at an altitude close to the ground. The map (image mosaic) is then obtained by matching and fusing the recorded images. The current construction methods of large mosaics do not guarantee the overlap of these ones, leading to the possible existence of holes in the mosaics. However, this stake is high in order to allow the complete observation of the mission zone. It is in this context that we have developed our subject of research : “Acquisition of complete image mosaics with an autonomous underwater vehicle”. We develop an adaptive strategy that ensures the mosaic overlapping. We base our study on lawnmower trajectories and determine, at the end of each observed segment, the distance with the next segment. This distance depends on the robot relative positioning incertitude. This incertitude increasing with the time, the vehicle must recalculate its position frequently in order to not lose itself. The relief characteristics of the observed zone will define possible registration events, for which the vehicle will reset his positioning error. The more the textured region is, the higher the number of events is, and thus the vehicle can better position itself. The inter-track distance is then high. On the contrary, the less the region is informative, the lower the distance is. In our aim of inter-track distance optimisation, we risk to be confronted to low overlap image matching situations. The classical methods fail in such situations because they force the association between image localities (templates). We have established a method, based on Information Theory, that palliates this problem and take into account these ambiguities
Carlési, Nicolas. "Coopération entre véhicules sous-marins autonomes : une approche organisationnelle réactive multi-agent." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20092.
Full textUnderwater marine applications are nowadays branching into various fields covering larger and deeper zones. Performing the required tasks with the aid of AUV flotillas is a real challenge. However, the advantages of using such a new technology are numerous. Firstly, this would highly reduce the cost of the mission thanks to the distribution of this former among the various AUV: the loss of one AUV or its bad functioning will not degrade the performance of the flotilla in general. Secondly, the use of a flotilla reduces the execution time of a mission given the parallelization of certain tasks. Finally, any mission can be accomplished by the flotilla by taking into consideration the specificity of each AUV. In fact, each of these vehicles holds different characteristics rendering the global architecture heterogeneous and therefore applicable in different contexts. However, the methods concerned with multi-AUV cooperation are hindered by two main limitations: (1) the number of communications induced and (2) the management of the heterogeneity in the flotilla.The proposed approach aims at responding to these challenges. The principal idea is to combine this reactive cooperational approach with an organizational one. The reactive cooperational approach allows the exchange of simple communication signals. However, it does not help in solving the problems of cooperation that are very constrained and that mainly concern the spatial coordination of homogeneous vehicles. The first contribution in this thesis is the extension of the satisfaction-altruism approach. A new reactive decisional mechanism capable of considering the cooperative actions of various natures is proposed. The second contribution consists in specifying the context of reactive interactions based on an organizational approach. The organizational model Agent/Group/Role is used in order to have an explicit representation of the flotilla. The concepts of "group" and especially "role" are used in the attribution of the communication signals allowing the accomplishment of heterogeneous interactions with a big modularity. A new concept is therefore born and is integrated in a new software architecture called REMORA intended to equip autonomous underwater vehicles. This proposed new method has been validated through various numerical simulations in different scenarios putting at stake heterogeneous AUV
Deltheil, Caroline. "Une méthodologie pour l'analyse et la modélisation causales de systèmes hybrides complexes : application à la modélisation comportementale d'un véhicule sous-marin autonome." Châtenay-Malabry, Ecole centrale de Paris, 1998. http://www.theses.fr/1998ECAP0583.
Full textLouis, Silvain. "Système robotisé semi-autonome pour l'observation des espèces marines." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS043.
Full textThe goal of this thesis, in collaboration with a biologists team of Marbec, is to develop a semi-autonomous robotic system for marine species observation. For this, this system will have to perform the known biologist protocols as well as new protocols while proving its effectiveness compared to a diver. To achieve the protocols, we have developed the associated control laws and a mission management system to allow the construction, the formal validation and the execution of a mission. Finally, to answer the problem of feasibility of observation by a robot, we conducted the experiments in Mayotte
Books on the topic "Robot sous-marins autonome"
Chin, Cheng Siong. Intelligent Virtual System for Underwater Vehicle Piloting Using Unity(tm). Taylor & Francis Group, 2020.
Find full textChin, Cheng Siong. Intelligent Virtual System for Underwater Vehicle Piloting Using Unity(tm). Taylor & Francis Group, 2020.
Find full textChin, Cheng Siong. Intelligent Virtual System for Underwater Vehicle Piloting Using Unity(tm). Taylor & Francis Group, 2020.
Find full textIntelligent Virtual System for Underwater Vehicle Piloting Using Unity(tm). Taylor & Francis Group, 2020.
Find full text