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Semi-autonomous control of prosthetic hands based on multimodal sensing, human grasp demonstration and user intention

Starke, Julia 1; Weiner, Pascal ORCID iD icon 1; Crell, Markus 1; Asfour, Tamim 1
1 Institut für Anthropomatik und Robotik (IAR), Karlsruher Institut für Technologie (KIT)

Abstract:

Semi-autonomous control strategies for prosthetic hands provide a promising way to simplify and improve the grasping process for the user by adopting techniques usually applied in robotic grasping. Such strategies endow prosthetic hands with the ability to autonomously select and execute grasps while keeping the user in the loop to intervene at any time for triggering, accepting or rejecting decisions taken by the controller in an intuitive and easy way. In this paper, we present a semi-autonomous control strategy that allows the user to perform fluent grasping of everyday objects based on a single EMG channel and a multi-modal sensor system embedded in the hand for object perception and autonomous grasp execution. We conduct a user study with 20 subjects to assess the effectiveness and intuitiveness of our semi-autonomous control strategy and compare it to a conventional electromyography-based control strategy. The results show that the workload is reduced by 25.9 % compared to conventional electromyographic control, the physical demand is reduced by 60 % and the grasping process is accelerated by 19.4 %.


Verlagsausgabe §
DOI: 10.5445/IR/1000149096
Veröffentlicht am 27.07.2022
Originalveröffentlichung
DOI: 10.1016/j.robot.2022.104123
Scopus
Zitationen: 17
Web of Science
Zitationen: 13
Dimensions
Zitationen: 22
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anthropomatik und Robotik (IAR)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 08.2022
Sprache Englisch
Identifikator ISSN: 0921-8890
KITopen-ID: 1000149096
Erschienen in Robotics and Autonomous Systems
Verlag Elsevier
Band 154
Seiten Art.-Nr. 104123
Vorab online veröffentlicht am 30.04.2022
Nachgewiesen in Web of Science
Dimensions
Scopus
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