Milli-scale cellular robots that can reconfigure morphologies and behaviors simultaneously

Xiong Yang, Rong Tan, Haojian Lu, Toshio Fukuda and Yajing Shen ()
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Xiong Yang: City University of Hong Kong
Rong Tan: City University of Hong Kong
Haojian Lu: City University of Hong Kong
Toshio Fukuda: Nagoya University
Yajing Shen: City University of Hong Kong

Nature Communications, 2022, vol. 13, issue 1, 1-11

Abstract: Abstract Modular robot that can reconfigure architectures and functions has advantages in unpredicted environment and task. However, the construction of modular robot at small-scale remains a challenge since the lack of reliable docking and detaching strategies. Here we report the concept of milli-scale cellular robot (mCEBOT) achieved by the heterogeneous assembly of two types of units (short and long units). Under the magnetic field, the proposed mCEBOT units can not only selectively assemble (e.g., end-by-end and side-by-side) into diverse morphologies corresponding to the unstructured environments, but also configure multi-modes motion behaviors (e.g., slipping, rolling, walking and climbing) based on the on-site task requirements. We demonstrate its adaptive mobility from narrow space to high barrier to wetting surface, and its potential applications in hanging target taking and environment exploration. The concept of mCEBOT offers new opportunities for robot design, and will broaden the field of modular robot in both miniaturization and functionalization.

Date: 2022
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DOI: 10.1038/s41467-022-31913-0

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