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12th International Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (HAPTICS'04)
Performance Analysis of Steady-Hand Teleoperation versus Cooperative Manipulation
Chicago, Illinois, USA
March 27-March 28
ISBN: 0-7695-2112-6
Izukanne Emeagwali, Johns Hopkins University
Panadda Marayong, Johns Hopkins University
Jake J. Abbott, Johns Hopkins University
Allison M. Okamura, Johns Hopkins University
This paper compares two "steady-hand" type systems. The first is an admittance-controlled, non-backdriveable cooperative manipulation system, in which the robot and the operator simultaneously grasp and manipulate a tool. The second is a pair of haptic interfaces configured for unilateral teleoperation. A recently developed pseudoadmittance control law is applied to the master device, which attenuates the operator's high frequency input and sends a "steadied" reference position to the slave. Using a set of planar targeting tasks with varying indexes of difficulty, we found that operator movement time is similar for these two systems. However, the teleoperated system results in more targeting errors due to the limited stiffness display of the haptic interface. These results indicate that operators interact with the pseudoadmittance system as intended, but inherent physical limitations will limit applicability of this approach.
Citation:
Izukanne Emeagwali, Panadda Marayong, Jake J. Abbott, Allison M. Okamura, "Performance Analysis of Steady-Hand Teleoperation versus Cooperative Manipulation," haptics, pp.316-322, 12th International Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (HAPTICS'04), 2004
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