Single Channel Based Interference‐Free and Self‐Powered Human–Machine Interactive Interface Using Eigenfrequency‐Dominant Mechanism
-
Published:2024-01-29
Issue:
Volume:
Page:
-
ISSN:2198-3844
-
Container-title:Advanced Science
-
language:en
-
Short-container-title:Advanced Science
Author:
Ding Sen1,
Zhao Dazhe2,
Chen Yongyao3,
Dai Ziyi1,
Zhao Qian1,
Gao Yibo4,
Zhong Junwen2,
Luo Jianyi3,
Zhou Bingpu1ORCID
Affiliation:
1. Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Avenida da Universidade, Taipa Macau 999078 China
2. Department of Electromechanical Engineering University of Macau Avenida da Universidade, Taipa Macau 999078 China
3. Research Center of Flexible Sensing Materials and Devices School of Applied Physics and Materials Wuyi University Jiangmen 529020 China
4. Shenzhen Shineway Technology Corporation Shenzhen Guangdong 518000 China
Abstract
AbstractThe recent development of wearable devices is revolutionizing the way of human–machine interaction (HMI). Nowadays, an interactive interface that carries more embedded information is desired to fulfill the increasing demand in era of Internet of Things. However, present approach normally relies on sensor arrays for memory expansion, which inevitably brings the concern of wiring complexity, signal differentiation, power consumption, and miniaturization. Herein, a one‐channel based self‐powered HMI interface, which uses the eigenfrequency of magnetized micropillar (MMP) as identification mechanism, is reported. When manually vibrated, the inherent recovery of the MMP causes a damped oscillation that generates current signals because of Faraday's Law of induction. The time‐to‐frequency conversion explores the MMP‐related eigenfrequency, which provides a specific solution to allocate diverse commands in an interference‐free behavior even with one electric channel. A cylindrical cantilever model is built to regulate the MMP eigenfrequencies via precisely designing the dimensional parameters and material properties. It is shown that using one device and two electrodes, high‐capacity HMI interface can be realized when the magnetic micropillars (MMPs) with different eigenfrequencies have been integrated. This study provides the reference value to design the future HMI system especially for situations that require a more intuitive and intelligent communication experience with high‐memory demand.
Funder
Science and Technology Development Fund
Guangdong Provincial Department of Science and Technology
Universidade de Macau
Science, Technology and Innovation Commission of Shenzhen Municipality
Subject
General Physics and Astronomy,General Engineering,Biochemistry, Genetics and Molecular Biology (miscellaneous),General Materials Science,General Chemical Engineering,Medicine (miscellaneous)