HapticV1, Main, Exploration, bibRecord, 002715

Stable multi-user interaction with cooperative haptic virtual environments by a modification of passive set-position modulation

Identifieur interne : 002715 ( Main/Exploration ); précédent : 002714; suivant : 002716

Stable multi-user interaction with cooperative haptic virtual environments by a modification of passive set-position modulation

Auteurs : R. Jaberzadeh Ansari [Iran] ; M. Zareinejad [Iran] ; S. M. Rezaei [Iran] ; K. Baghestan [Iran] ; N. Sarli [Iran]

Source :

IET control theory & applications : (Print) [ 1751-8644 ] ; 2012.

RBID : Pascal:13-0064241

Descripteurs français

Pascal (Inist)
- Interface utilisateur, Coopération, Réalité virtuelle, Passivité, Téléopération, Réseau virtuel, Sensibilité tactile, Station travail, Ethernet, Réseau local, Canal transmission, Délai transmission, Perte transmission, Canal transmission avec perte, Instabilité, Fidélité, Gigue, Oscillation, Boucle fermée, Rigidité, Simulation ordinateur.
Wicri :
- topic : Réalité virtuelle, Réseau local.

English descriptors

KwdEn :
- Closed loop, Computer simulation, Cooperation, Ethernet, Fidelity, Instability, Jitter, Local network, Lossy channel, Oscillation, Passivity, Remote operation, Stiffness, Tactile sensitivity, Transmission channel, Transmission loss, Transmission time, User interface, Virtual network, Virtual reality, Workstation.

Abstract

This study is concerned with interaction in multi-user/cooperative haptic virtual environments. In such systems, users can haptically interact with a shared virtual world from numerous workstations over an Ethernet local area network. Characteristics of communication channels, such as delay, jitter and packet loss, can potentially investigate undesirable oscillations/instability. Passivity as a benchmark for stability, specifically in the stability analysis of coupled systems like teleoperations or haptics, has the disadvantage of being overconservative. Hence, it compromises fidelity of interaction. Passive set-position modulation (PSPM), which was first used to impose teleoperation closed-loop passivity is utilised in this study for a networked virtual haptic environment. Enforcing the closed-loop passivity of multi-user haptic interaction, this approach allows virtually all ranges of stiffness to be rendered by numerous users no matter what the network circumstances are. The new modified PSPM framework was validated through some simulations and experiments.

Affiliations:

Iran

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000226
to stream PascalFrancis, to step Curation: 001073
to stream PascalFrancis, to step Checkpoint: 000202
to stream Main, to step Merge: 002743
to stream Main, to step Curation: 002715

Le document en format XML

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<front><div type="abstract" xml:lang="en">This study is concerned with interaction in multi-user/cooperative haptic virtual environments. In such systems, users can haptically interact with a shared virtual world from numerous workstations over an Ethernet local area network. Characteristics of communication channels, such as delay, jitter and packet loss, can potentially investigate undesirable oscillations/instability. Passivity as a benchmark for stability, specifically in the stability analysis of coupled systems like teleoperations or haptics, has the disadvantage of being overconservative. Hence, it compromises fidelity of interaction. Passive set-position modulation (PSPM), which was first used to impose teleoperation closed-loop passivity is utilised in this study for a networked virtual haptic environment. Enforcing the closed-loop passivity of multi-user haptic interaction, this approach allows virtually all ranges of stiffness to be rendered by numerous users no matter what the network circumstances are. The new modified PSPM framework was validated through some simulations and experiments.</div>
</front>
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Stable multi-user interaction with cooperative haptic virtual environments by a modification of passive set-position modulation

Stable multi-user interaction with cooperative haptic virtual environments by a modification of passive set-position modulation

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri