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Article

Optimization of Link Length Fitting between an Operator and a Robot with Digital Annealer for a Leader-Follower Operation

1
Waseda Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555, Japan
2
Department of Modern Mechanical Engineering, Waseda University, Tokyo 169-8555, Japan
3
Fujitsu Ltd., Tokyo 105-7123, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Thomas Bock
Robotics 2022, 11(1), 12; https://doi.org/10.3390/robotics11010012
Received: 3 December 2021 / Revised: 29 December 2021 / Accepted: 5 January 2022 / Published: 8 January 2022
(This article belongs to the Section Intelligent Robots and Mechatronics)
In recent years, the teleoperation of robots has become widespread in practical use. However, in some current modes of robot operation, such as leader-follower control, the operator must use visual information to recognize the physical deviation between him/herself and the robot, and correct the operation instructions sequentially, which limits movement speed and places a heavy burden on the operator. In this study, we propose a leader-follower control parameter optimization method for the feedforward correction necessitated by deviations in the link length between the robot and the operator. To optimize the parameters, we used the Digital Annealer developed by Fujitsu Ltd., which can solve the combinatorial optimization problem at high speed. The main objective was to minimize the difference between the hand coordinates target and the actual hand position of the robot. In simulations, the proposed method decreased the difference between the hand position of the robot and the target. Moreover, this method enables optimum operation, in part by eliminating the need for the operator to maintain an unreasonable posture, as in some robots the operator’s hand position is unsuitable for achieving the objective. View Full-Text
Keywords: robot; teleoperation; optimization; quantum annealing; Digital Annealer robot; teleoperation; optimization; quantum annealing; Digital Annealer
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MDPI and ACS Style

Otani, T.; Takanishi, A.; Nakamura, M.; Kimura, K. Optimization of Link Length Fitting between an Operator and a Robot with Digital Annealer for a Leader-Follower Operation. Robotics 2022, 11, 12. https://doi.org/10.3390/robotics11010012

AMA Style

Otani T, Takanishi A, Nakamura M, Kimura K. Optimization of Link Length Fitting between an Operator and a Robot with Digital Annealer for a Leader-Follower Operation. Robotics. 2022; 11(1):12. https://doi.org/10.3390/robotics11010012

Chicago/Turabian Style

Otani, Takuya, Atsuo Takanishi, Makoto Nakamura, and Koichi Kimura. 2022. "Optimization of Link Length Fitting between an Operator and a Robot with Digital Annealer for a Leader-Follower Operation" Robotics 11, no. 1: 12. https://doi.org/10.3390/robotics11010012

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