論文

国際誌
2020年12月

Generation of diverse insect-like gait patterns using networks of coupled Rössler systems.

Chaos (Woodbury, N.Y.)
  • Shunki Kitsunai
  • ,
  • Woorim Cho
  • ,
  • Chihiro Sano
  • ,
  • Supat Saetia
  • ,
  • Zixuan Qin
  • ,
  • Yasuharu Koike
  • ,
  • Mattia Frasca
  • ,
  • Natsue Yoshimura
  • ,
  • Ludovico Minati

30
12
開始ページ
123132
終了ページ
123132
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1063/5.0021694

The generation of walking patterns is central to bio-inspired robotics and has been attained using methods encompassing diverse numerical as well as analog implementations. Here, we demonstrate the possibility of synthesizing viable gaits using a paradigmatic low-dimensional non-linear entity, namely, the Rössler system, as a dynamical unit. Through a minimalistic network wherein each instance is univocally associated with one leg, it is possible to readily reproduce the canonical gaits as well as generate new ones via changing the coupling scheme and the associated delays. Varying levels of irregularity can be introduced by rendering individual systems or the entire network chaotic. Moreover, through tailored mapping of the state variables to physical angles, adequate leg trajectories can be accessed directly from the coupled systems. The functionality of the resulting generator was confirmed in laboratory experiments by means of an instrumented six-legged ant-like robot. Owing to their simple form, the 18 coupled equations could be rapidly integrated on a bare-metal microcontroller, leading to the demonstration of real-time robot control navigating an arena using a brain-machine interface.

リンク情報
DOI
https://doi.org/10.1063/5.0021694
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/33380047
ID情報
  • DOI : 10.1063/5.0021694
  • PubMed ID : 33380047

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