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Architecture de contrôle hybride pour systèmes multi-robots mobiles

Architecture de contrôle hybride pour systèmes multi-robots mobiles
Author: Ahmed Benzerrouk
Publisher:
Total Pages: 0
Release: 2011
Genre:
ISBN:

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La complexité inhérente à la coordination des mouvements d'un groupe de robots mobiles est traitée en investiguant plus avant les potentialités des architectures de contrôle comportementales dont le but est de briser la complexité des tâches à exécuter. En effet, les robots mobiles peuvent évoluer dans des environnements très complexes et nécessite de surcroît une coopération précise et sécurisée des véhicules pouvant rapidement devenir inextricable. Ainsi, pour maîtriser cette complexité, le contrôleur dédié à la réalisation de la tâche est décomposé en un ensemble de comportements/contrôleurs élémentaires (évitement d'obstacles et de collision entre les robots, attraction vers une cible, etc.) qui lient les informations capteurs (provenant de caméras, des capteurs locaux du robot, etc.) aux actionneurs des différentes entités robotiques. La tâche considérée est la navigation en formation en présence d'obstacles (statiques et dynamiques). La spécificité de l'approche théorique consiste à allier les avantages des architectures de contrôle comportementales à la méthode de la structure virtuelle où le groupe de robots mobiles suit un corps virtuel avec une dynamique (vitesse, direction) donnée. Ainsi, l'activation d'un comportement élémentaire en faveur d'un autre se fait en respectant les contraintes structurelles des robots (e.g. vitesses et accélérations maximales, etc.) en vue d'assurer le maximum de précision et de sécurité des mouvements coordonnés entre les différentes entités mobiles. La coopération consiste à se partager les places dans la structure virtuelle de manière distribuée et de façon à atteindre plus rapidement la formation désirée. Pour garantir les critères de performances visés par l'architecture de contrôle, les systèmes hybrides qui permettent de commander des systèmes continus en présence d'évènements discrets sont exploités. En effet, ces contrôleurs (partie discrète) permettent de coordonner l'activité des différents comportements (partie continue) disponibles au niveau de l'architecture, tout en offrant une analyse automaticienne rigoureuse de la stabilité de celle-ci au sens de Lyapunov. Chaque contribution est illustrée par des résultats de simulation. Le dernier chapitre est dédié à l'implémentation de l'architecture de contrôle proposée sur un groupe de robots mobiles Khepera III.


Architecture de contrôle hybride pour les systèmes multi-robots

Architecture de contrôle hybride pour les systèmes multi-robots
Author: Ahmed Benzerrouk
Publisher: Presses Academiques Francophones
Total Pages: 220
Release: 2014-07-22
Genre:
ISBN: 9783838144030

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Les robots mobiles peuvent evoluer dans des environnements tres complexes et necessite de surcroit une cooperation precise et securisee des vehicules pouvant rapidement devenir inextricable. Dans ce livre, la specificite de la commande des systemes multi-robots proposee consiste a allier les avantages des architectures de controle comportementales a la methode de la structure virtuelle. L'activation d'un comportement elementaire en faveur d'un autre se fait en respectant les contraintes structurelles des robots (e.g. vitesses, accelerations maximales, etc.). L'objectif est d'assurer le maximum de precision et de securite des mouvements coordonnes entre les differentes entites mobiles. Pour garantir les criteres de performances vises par l'architecture de controle, les systemes hybrides permettant de commander des systemes continus en presence d'evenements discrets sont exploites. En effet, des controleurs (partie discrete) coordonnent l'activite des differents comportements (partie continue) disponibles au niveau de l'architecture. Une analyse automaticienne rigoureuse au sens de Lyapunov assure la stabilite des commutations.


Handbook of Research on Design, Control, and Modeling of Swarm Robotics

Handbook of Research on Design, Control, and Modeling of Swarm Robotics
Author: Tan, Ying
Publisher: IGI Global
Total Pages: 889
Release: 2015-12-09
Genre: Technology & Engineering
ISBN: 1466695730

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Studies on robotics applications have grown substantially in recent years, with swarm robotics being a relatively new area of research. Inspired by studies in swarm intelligence and robotics, swarm robotics facilitates interactions between robots as well as their interactions with the environment. The Handbook of Research on Design, Control, and Modeling of Swarm Robotics is a collection of the most important research achievements in swarm robotics thus far, covering the growing areas of design, control, and modeling of swarm robotics. This handbook serves as an essential resource for researchers, engineers, graduates, and senior undergraduates with interests in swarm robotics and its applications.


Autonomous Vehicle Navigation

Autonomous Vehicle Navigation
Author: Lounis Adouane
Publisher: CRC Press
Total Pages: 256
Release: 2016-04-21
Genre: Computers
ISBN: 1498715591

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Improve the Safety, Flexibility, and Reliability of Autonomous Navigation in Complex EnvironmentsAutonomous Vehicle Navigation: From Behavioral to Hybrid Multi-Controller Architectures explores the use of multi-controller architectures in fully autonomous robot navigation-even in highly dynamic and cluttered environments. Accessible to researchers


Mobile Robots

Mobile Robots
Author: Janusz Bȩdkowski
Publisher: IntechOpen
Total Pages: 404
Release: 2011-12-02
Genre: Technology & Engineering
ISBN: 9789533078427

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The objective of this book is to cover advances of mobile robotics and related technologies applied for multi robot systems' design and development. Design of control system is a complex issue, requiring the application of information technologies to link the robots into a single network. Human robot interface becomes a demanding task, especially when we try to use sophisticated methods for brain signal processing. Generated electrophysiological signals can be used to command different devices, such as cars, wheelchair or even video games. A number of developments in navigation and path planning, including parallel programming, can be observed. Cooperative path planning, formation control of multi robotic agents, communication and distance measurement between agents are shown. Training of the mobile robot operators is very difficult task also because of several factors related to different task execution. The presented improvement is related to environment model generation based on autonomous mobile robot observations.


Optimization and Machine Learning

Optimization and Machine Learning
Author: Rachid Chelouah
Publisher: John Wiley & Sons
Total Pages: 258
Release: 2022-02-15
Genre: Computers
ISBN: 1119902878

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Machine learning and optimization techniques are revolutionizing our world. Other types of information technology have not progressed as rapidly in recent years, in terms of real impact. The aim of this book is to present some of the innovative techniques in the field of optimization and machine learning, and to demonstrate how to apply them in the fields of engineering. Optimization and Machine Learning presents modern advances in the selection, configuration and engineering of algorithms that rely on machine learning and optimization. The first part of the book is dedicated to applications where optimization plays a major role, and the second part describes and implements several applications that are mainly based on machine learning techniques. The methods addressed in these chapters are compared against their competitors, and their effectiveness in their chosen field of application is illustrated.


European Robotics Symposium 2008

European Robotics Symposium 2008
Author: Herman Bruyninckx
Publisher: Springer Science & Business Media
Total Pages: 372
Release: 2008-03-25
Genre: Technology & Engineering
ISBN: 3540783156

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At the dawn of the new millennium, robotics is undergoing a major transformation in scope and dimension. From a largely dominant industrial focus, robotics is rapidly expanding into the challenges of unstructured environments. Interacting with, assi- ing, serving, and exploring with humans, the emerging robots will increasingly touch people and their lives. The goal of the Springer Tracts in Advanced Robotics (STAR) series is to bring, in a timely fashion, the latest advances and developments in robotics on the basis of their significance and quality. It is our hope that the wider dissemination of research - velopments will stimulate more exchanges and collaborations among the research community and contribute to further advancement of this rapidly growing field. The European Robotics Symposium (EUROS) was launched in 2006 as an inter- tional scientific single-track event promoted by EURON, the European Robotics Network linking most of the European research teams since its inception in 2000. Since then, EUROS has found its parental home under STAR, together with the other thematic symposia devoted to excellence in robotics research: FSR, ISER, ISRR, WAFR.


Applying Inter-layer Conflict Resolution to Hybrid Robot Control Architectures

Applying Inter-layer Conflict Resolution to Hybrid Robot Control Architectures
Author: Matthew D. Powers
Publisher:
Total Pages:
Release: 2010
Genre: Mobile robots
ISBN:

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In this document, we propose and examine the novel use of a learning mechanism between the reactive and deliberative layers of a hybrid robot control architecture. Balancing the need to achieve complex goals and meet real-time constraints, many modern mobile robot navigation control systems make use of a hybrid deliberative-reactive architecture. In this paradigm, a high-level deliberative layer plans routes or actions toward a known goal, based on accumulated world knowledge. A low-level reactive layer selects motor commands based on current sensor data and the deliberative layer's plan. The desired system-level effect of this architecture is that the robot is able to combine complex reasoning toward global objectives with quick reaction to local constraints. Implicit in this type of architecture, is the assumption that both layers are using the same model of the robot's capabilities and constraints. It may happen, for example, due to differences in representation of the robot's kinematic constraints, that the deliberative layer creates a plan that the reactive layer cannot follow. This sort of conflict may cause a degradation in system-level performance, if not complete navigational deadlock. Traditionally, it has been the task of the robot designer to ensure that the layers operate in a compatible manner. However, this is a complex, empirical task.