Grip Stabilization through Independent Finger Tactile Feedback Control
Name
sensors-20-01748.pdf
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20.43 MB
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Adobe PDF
Checksum (MD5)
476d530205fc13deb8b250f5746d0dc6
Author(s)
Fernandes Veiga, Filipe
Edin, Benoni
Peters, Jan
Date Issued
March 2020
Journal
Applied Sciences
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Veiga, Filipe et al. "Simulation of Skeletal Muscles in Real-Time with Parallel Computing in GPU." Sensors 20, 6 (March 2020): 1748 © 2020 The Author(s)
Version
Final published version
Abstract
Grip force control during robotic in-hand manipulation is usually modeled as a monolithic task, where complex controllers consider the placement of all fingers and the contact states between each finger and the gripped object in order to compute the necessary forces to be applied by each finger. Such approaches normally rely on object and contact models and do not generalize well to novel manipulation tasks. Here, we propose a modular grip stabilization method based on a proposition that explains how humans achieve grasp stability. In this biomimetic approach, independent tactile grip stabilization controllers ensure that slip does not occur locally at the engaged robot fingers. Local slip is predicted from the tactile signals of each fingertip sensor i.e., BioTac and BioTac SP by Syntouch. We show that stable grasps emerge without any form of central communication when such independent controllers are engaged in the control of multi-digit robotic hands. The resulting grasps are resistant to external perturbations while ensuring stable grips on a wide variety of objects.
MIT Department
Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
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Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3390/s20061748
