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Virtual Fixtures and Automatic Mode Switching for Teleoperation Tasks

[+] Author Affiliations
Michael R. Wrock, Scott B. Nokleby

University of Ontario Institute of Technology, Oshawa, ON, Canada

Paper No. DETC2012-70161, pp. 745-751; 7 pages
doi:10.1115/DETC2012-70161
From:
  • ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4: 36th Mechanisms and Robotics Conference, Parts A and B
  • Chicago, Illinois, USA, August 12–15, 2012
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-4503-5
  • Copyright © 2012 by ASME

abstract

In this work a novel command strategy is presented for tele-operating a mobile-manipulator system. To test its effectiveness, the command strategy was implemented on the mobile-manipulator system “Omnibot MMS”. The Omnibot MMS is teleoperated using a three degree-of-freedom haptic joystick and is controlled by driving either the base or the manipulator using an intuitive automatic mode switching command strategy. Virtual fixtures are used to provide additional information to the operator about the configuration of the Omnibot MMS, as well as increase accuracy and decrease errors. Through testing it was shown that new operators increased performance faster using the novel command strategy, and both accuracy and efficiency were improved, when compared to the traditional method of control using two joysticks.

Copyright © 2012 by ASME

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