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Compliance Control and Human–Robot Interaction: Part II — Experimental Examples

Pipe, Tony; Khan, Said G.; Herrmann, Guido; Lenz, Alexander; Grafi, Mubarak Al; Pipe, Anthony G.; Melhuish, Chris

Authors

Tony Pipe

Said G. Khan

Guido Herrmann

Alexander Lenz

Mubarak Al Grafi

Chris Melhuish Chris.Melhuish@uwe.ac.uk
AVC - Advanced Technologies & Professor of Robotics & Autonomous Systems



Abstract

Compliance control is highly relevant to human safety in human–robot interaction (HRI). This paper presents multi-dimensional compliance control of a humanoid robot arm. A dynamic model-free adaptive controller with an anti-windup compensator is implemented on four degrees of freedom (DOF) of a humanoid robot arm. The paper is aimed to compliment the associated review paper on compliance control. This is a model reference adaptive compliance scheme which employs end-effector forces (measured via joint torque sensors) as a feedback. The robot's body-own torques are separated from external torques via a simple but effective algorithm. In addition, an experiment of physical human robot interaction is conducted employing the above mentioned adaptive compliance control along with a speech interface. The experiment is focused on passing an object (a cup) between a human and a robot. Compliance is providing an immediate layer of safety for this HRI scenario by avoiding pushing, pulling or clamping and minimizing the effect of collisions with the environment.

Journal Article Type Article
Publication Date Jan 1, 2014
Journal International Journal of Humanoid Robotics
Print ISSN 0219-8436
Publisher World Scientific Publishing
Peer Reviewed Peer Reviewed
Volume 11
Issue 03
Pages 1430002
APA6 Citation Khan, S. G., Herrmann, G., Lenz, A., Al Grafi, M., Pipe, A. G., & Melhuish, C. (2014). Compliance Control and Human–Robot Interaction: Part II — Experimental Examples. International Journal of Humanoid Robotics, 11(03), 1430002. https://doi.org/10.1142/S0219843614300025
DOI https://doi.org/10.1142/S0219843614300025
Keywords compliance, impedance, humanoids, optimal adaptive control, HRI, pHRI
Publisher URL http://dx.doi.org/10.1142/S0219843614300025
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