Title: Enhanced impedance control for an sEMG-based prosthetic using RNE approach

Authors: Papa Ekow Aiduonu; Yang Liu

Addresses: Department of Computer Science, Zhejiang University of Science and Technology, 310023, Hangzhou, China ' Department of Computer Science, Zhejiang University of Science and Technology, 310023, Hangzhou, China

Abstract: Impedance control has been a major challenge faced by most robotic limbs and arms. One of the ways of enhancing the prosthetic performance is by optimising the kinematic and dynamic systems. Therefore, based on surface electromyography (sEMG) signal, this study implemented the recursive Newton-Euler (RNE) approach to establish an effective control for a prosthetics. The model introduced a primal approach which trains the subject to utilise the prosthetic sEMG data through the use of an operator-machine communal control. Further, the study utilised the estimated kinematics of the prosthetic manipulator to measure the joint torques which is expected to activate the prosthetic robotic arm, while using the active compensation to mask the real dynamics. Finally, the research used several simulations for prosthetic grasping, control and angular velocities to show that with the incorporation of the RNE approach, impedance is efficiently managed while the prosthetic devices are better controlled by the subjects.

Keywords: recursive Newton-Euler; RNE; surface electromyography; sEMG; impedance; brain computer interface; BCI; kinematics.

DOI: 10.1504/IJESMS.2021.115517

International Journal of Engineering Systems Modelling and Simulation, 2021 Vol.12 No.2/3, pp.94 - 102

Received: 05 Sep 2020
Accepted: 14 Sep 2020

Published online: 28 May 2021 *

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