Control design and experimental evaluation of the 2D CyberWalk platform

  • Alessandro De Luca*
  • , Raffaella Mattone
  • , Paolo Robuffo Giordano
  • , Heinrich H. Bulthoff
  • *Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    27 Citations (Scopus)

    Abstract

    The CyberWalk is a large size 2D omni-directional platform that allows unconstrained locomotion possibilities to a walking user for VR exploration. In this paper we present the motion control design for the platform, which has been developed within the homonymous European research project. The objective is to compensate the intentional motion of the user, so as to keep her/him always close to the platform center while limiting the perceptual effects due to actuation commands. The controller acts at the acceleration level, using suitable observers to estimate the unmeasurable intentional walker's velocity and acceleration. A moving reference position is used to limit the accelerations felt by the user in critical transients, e.g., when the walker suddenly stops motion. Experimental results are reported that show the benefit of designing separate control gains in the two orthogonal directions (lateral and sagittal) of a frame attached to the walker.

    Original languageEnglish
    Title of host publication2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009
    Pages5051-5058
    Number of pages8
    DOIs
    Publication statusPublished - 2009 Dec 11
    Event2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009 - St. Louis, MO, United States
    Duration: 2009 Oct 112009 Oct 15

    Publication series

    Name2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009

    Other

    Other2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009
    Country/TerritoryUnited States
    CitySt. Louis, MO
    Period09/10/1109/10/15

    Bibliographical note

    Funding Information:
    ACKNOYJLEDGEMENT. This research was partially supported by GNSAGA of CNR and was done while the second author was at the University of Rome supported by a grant within the Italian Hungarian cultural exchange program.

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Vision and Pattern Recognition
    • Human-Computer Interaction
    • Control and Systems Engineering

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