EMAS: ElectroMagnetic Actuation System for Low-Latency Motion Transfer

EMAS (ElectroMagnetic Actuation System)は複数のユーザーが協調して行為を行う共同行為 (Joint Action)をコンピュータの介在によって生み出すための、身体運動の転送・同期システムです。

ウエアラブルマグネットと電磁石から構成される電磁駆動システムにより、16ms以下の低遅延でボタン押しなどの指運動を駆動させることができます。これらをユーザー間で相互接続することにより、複数ユーザーの運動を単方向・双方向に転送することを実現し、ユーザー間の共同行為や運動同期を引き出す事を目的としています。

本研究は、笠原研究員による、人とコンピュータが融合することで生み出される“新たな人間性“について探る研究プロジェクト “Cybernetic Humanity”の一つです。

Credit：
Daisuke Tajima (Sony Computer Science Laboratories, Inc.)
Taku Tanichi (Sony Computer Science Laboratories, Inc., Keio Media Design)
Mohammad H. Shehata (California Institute of Technology, Toyohashi University of Technology)
Shunichi Kasahara (Sony Computer Science Laboratories, Inc.)

Abstract
Joint action, performing a task together by multiple people, can be beneficial in transferring the embodied skill, establishing physical relationships, engaging multiple people, and completing the task more effectively. To facilitate real-time joint bodily action, we introduce a low-latency motion transfer system (total latency: 22.9 ± 2.0 ms, finger attraction latency: 13.7 ± 2.1 ms) using electromagnetic actuation, which allows them to share their instantaneous actions, such as pressing the button with their fingers. Our system can change the type of motion transfer at both the direction of the transfer between users (mono- or bi-direction) and the input logic (“AND” or “OR”) based on the users’ input. We will discuss its potential as a computer-assisted joint action and the possibility that the computer system orchestrates the joint action between the users or the user and the computer.

Video

Reference
Daisuke Tajima, Taku Tanichi, Shehata Mohammad H., and Shunichi Kasahara. 2022. Low-Latency Motion Transfer with Electromagnetic Actuation for Joint Action. In SIGGRAPH Asia 2022 Emerging Technologies (SA ’22 Emerging Technologies). Association for Computing Machinery, New York, NY, USA, Article 6, 1–2. https://dl.acm.org/doi/10.1145/3550471.3558399

Siggraph Asia 2022 Emerging Technologies
https://sa2022.siggraph.org/en/presentation/?id=emt_118&sess=sess219