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JRM Vol.11 No.5 pp. 387-392
doi: 10.20965/jrm.1999.p0387
(1999)

Paper:

Design of a Robotic System that Plays with a Yoyo

Koichi Hashimoto and Toshiro Noritsugu

Department of Systems Engineering, Okayama University, 3-1-1 Tsushima-naka, Okayama 700-8530, Japan

Received:
April 26, 1999
Accepted:
June 4, 1999
Published:
October 20, 1999
Keywords:
nonlinear control, vision, yoyo
Abstract

Yoyo dynamics are discontinuous and highly nonlinear, and dynamic parameters are difficult to estimate precisely. Some parameters even change their sign at the loop bottom of yoyo’s trajectory. Humans predict parameter change timing visually and sense yoyo dynamics through the fingers. Designing a robot that plays with a yoyo is difficult due to a lack of sensors and dynamic equations for sensing yoyo movement. We propose eventbased formulation for this based on an energy balance model and event-driven control. Simulations and experiments verified the validity of formulation and controller design.

Cite this article as:
Koichi Hashimoto and Toshiro Noritsugu, “Design of a Robotic System that Plays with a Yoyo,” J. Robot. Mechatron., Vol.11, No.5, pp. 387-392, 1999.
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