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A Task-Specific Analysis of the Benefit of Haptic Shared Control During Telemanipulation
First Quarter 2013 (vol. 6 no. 1)
pp. 2-12
H. Boessenkool, Assoc. EURATOM-FOM, FOM Inst. DIFFER, Nieuwegein, Netherlands
D. A. Abbink, Dept. of Biomech. Eng., Delft Univ. of Technol., Delft, Netherlands
C. J. M. Heemskerk, Heemskerk Innovative Technol. B.V., Noordwijk, Netherlands
F. C. T. van der Helm, Dept. of Biomech. Eng., Delft Univ. of Technol., Delft, Netherlands
J. G. W. Wildenbeest, Dept. of Biomech. Eng., Delft Univ. of Technol., Delft, Netherlands
Telemanipulation allows human to perform operations in a remote environment, but performance and required time of tasks is negatively influenced when (haptic) feedback is limited. Improvement of transparency (reflected forces) is an important focus in literature, but despite significant progress, it is still imperfect, with many unresolved issues. An alternative approach to improve teleoperated tasks is presented in this study: Offering haptic shared control in which the operator is assisted by guiding forces applied at the master device. It is hypothesized that continuous intuitive interaction between operator and support system will improve required time and accuracy with less control effort, even for imperfect transparency. An experimental study was performed in a hard-contact task environment. The subjects were aided by the designed shared control to perform a simple bolt-spanner task using a planar three degree of freedom (DOF) teleoperator. Haptic shared control was compared to normal operation for three levels of transparency. The experimental results showed that haptic shared control improves task performance, control effort and operator cognitive workload for the overall bolt-spanner task, for all three transparency levels. Analyses per subtask showed that free air movement (FAM) benefits most from shared control in terms of time performance, and also shows improved accuracy.
Index Terms:
Haptic interfaces,Force,Fasteners,Humans,Visualization,Accuracy,human factors experiment,Teleoperation,haptic guidance,haptic shared control,transparency,task performance
Citation:
H. Boessenkool, D. A. Abbink, C. J. M. Heemskerk, F. C. T. van der Helm, J. G. W. Wildenbeest, "A Task-Specific Analysis of the Benefit of Haptic Shared Control During Telemanipulation," IEEE Transactions on Haptics, vol. 6, no. 1, pp. 2-12, First Quarter 2013, doi:10.1109/TOH.2012.22
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