Search results for "robotic"

showing 6 items of 636 documents

Enhancing innovation capability and business opportunities : cases of SME-oriented applied research

2012

roboticskilpailukykyetätunnistussoveltava tutkimussensoriverkotmahdollisuusSMEssimulationcollaborationyrityksetyhteistyörobotiikkainnovaatiotinnovaatiotoimintainnovation capabilityapplied researchliiketoimintasimulointiRFID technologywireless sensor networkspienet ja keskisuuret yrityksetbusiness opportunities
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On the Stability of the Soft Pendulum With Affine Curvature: Open-Loop, Collocated Closed-Loop, and Switching Control

2022

This letter investigates the stability properties of the soft inverted pendulum with affine curvature - a template model for nonlinear control of underactuated soft robots. We look at how changes in physical parameters affect stability and equilibrium. We give conditions under which zero dynamics corresponding to a collocated choice of the output is (locally or globally) stable or unstable. We leverage these results to design a switching controller that stabilizes a class of nonlinear equilibria of the pendulum, which can drive the system from one equilibrium to another.

soft roboticsControl systemsControl and OptimizationStability criteriaGravityRoboticsEmerging control applicationsSettore ING-INF/04 - AutomaticaPotential energyTorqueControl and Systems EngineeringStability of nonlinear systemsRobotsEmerging control applications stability of nonlinear systems robotics.
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Kinematic and Elastostatic Design Optimisation of the 3-DOF Gantry-Tau Parallel Kinematic Manipulator

2009

Published version of an article in the journal: Modeling Identification and Control. Also available from the publisher:http://dx.doi.org/10.4173/mic.2009.2.1 One of the main advantages of the Gantry-Tau machine is a large accessible workspace/footprint ratio compared to many other parallel machines. The Gantry-Tau improves this ration further by allowing a change of assembly mode without internal link collisions or collisions between the links and end-effector. The reconfigurable Gantry-Tau kinematic design obtained by multi-objective optimisation according to this paper gives the following features: 3-D workspace/footprint ration is more than 3.19, lowest Cartesian stiffness in the workspa…

staticsparallel manipulatorComputer scienceVDP::Technology: 500::Mechanical engineering: 570::Machine construction and engineering technology: 571Parallel manipulatorControl engineeringKinematicslcsh:QA75.5-76.95Computer Science ApplicationsComputer Science::RoboticsIdentification (information)Control and Systems EngineeringModeling and Simulationlcsh:Electronic computers. Computer scienceManipulatorStaticsSoftwareModeling, Identification and Control: A Norwegian Research Bulletin
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Étude d'un système de stéréo-vision hybride

2013

National audience; On considère dans ce travail un système de vision hybride fixe composé d'une caméra fisheye et d'une caméra PTZ dans un environnement rigide. Nous souhaitons être en mesure d'orienter la caméra mécanisée sur une cible visible depuis l'image omnidirectionnelle de manière à obtenir une image de bonne définition de l'objet d'intérêt à partir de la caméra PTZ. Nous proposons dans cet article d'utiliser la modélisation sphérique des images ainsi que les propriétés de la géométrie épipolaire afin d'initialiser la localisation de la cible dans la caméra PTZ.

suivi de cible[INFO.INFO-CV] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV][INFO.INFO-RB] Computer Science [cs]/Robotics [cs.RO][ INFO.INFO-RB ] Computer Science [cs]/Robotics [cs.RO]système de vision hybride[INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV][INFO.INFO-RB]Computer Science [cs]/Robotics [cs.RO]Caméra fisheyePTZcalibration[ INFO.INFO-CV ] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]
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Extraction d'un graphe de navigabilité à partir d'un nuage de points 3D enrichis

2017

International audience; Ce travail se place dans le cadre général du projet ANR pLaTINUM lié à la navigation autonome et plus parti-culièrement à la génération de cartes pour la navigation basée perception. Il consiste à développer une nouvelle méthode pour résumer une carte 3D (un nuage dense de points 3D) et extraire un graphe de navigabilité facilitant l'utilisation de cette carte par des systèmes de navigation à ressources matérielles limitées (smart-phones, voitures, robots.. .). Cette méthode vise à ex-traire les régions les plus saillantes de l'environnement étudié afin de construire une carte récapitulative. Ce processus de résumé de carte basé sur la vision est appliqué d'une façon…

vision[INFO.INFO-CV] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]ToneNavigabilitéMapping[INFO.INFO-RB] Computer Science [cs]/Robotics [cs.RO][ INFO.INFO-RB ] Computer Science [cs]/Robotics [cs.RO]Exposure Fusion[INFO.INFO-RB]Computer Science [cs]/Robotics [cs.RO][INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]nuage 3DperceptionRetinex
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Underwater Multirobot Cooperative Intervention MAC Protocol

2020

This work introduces a Medium Access Control (MAC) protocol designed to allow a group of underwater robots that share a wireless communication channel to effectively communicate with each other. The goal of the Underwater Multirobot Cooperative Intervention MAC (UMCI-MAC) protocol presented in this work is to minimize the end to end delay and the jitter. The access to the medium in UMCI-MAC follows a Time Division Multiple Access (TDMA) strategy which is arbitrated by a master, which also has the capability to prioritize the transmission of some nodes over the rest of the network. Two experiments have been carried out with a team of four Autonomous Underwater Vehicles (AUV) in order to comp…

wireless networksaccess protocolsGeneral Computer ScienceComputer scienceUnderwater communicationsEnd-to-end delayTime division multiple accessThroughput02 engineering and technologyteleroboticsTelecomunicació0203 mechanical engineering0202 electrical engineering electronic engineering information engineeringWirelessGeneral Materials ScienceJitterbusiness.industryNetwork packetWireless networkComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSGeneral Engineering020302 automobile design & engineering020206 networking & telecommunicationsApplication layerunderwater communicationslcsh:Electrical engineering. Electronics. Nuclear engineeringremotely operated vehiclesbusinessCommunications protocolRobotsProtocols de xarxes d'ordinadorslcsh:TK1-9971Underwater acoustic communicationComputer networkCommunication channelIEEE Access
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