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Research Article

Multimode human–machine interface using a single-channel and patterned triboelectric sensor

Zhiping Feng1, Qiang He1, Xue Wang1, Jing Liu1, Jing Qiu1, Yufen Wu2(), Jin Yang1()
Department of Optoelectronic Engineering, Key Laboratory of Optoelectronic Technology and Systems Ministry of Education, Chongqing University, Chongqing 400044, China
College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
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Human–machine interfaces play a crucial role in artificial intelligence. Here, a triboelectric interface by encoding voltage signals of opposite polarities is proposed for human–machine interfaces (HMIs). Combining the polarity and number of voltage output peak as coding information, it greatly reduces the size of the device and provides a new coding strategy. The interface attached to the ring successfully realizes intelligent control.

Abstract

Triboelectric interfaces have already been extensively researched in the area of human–machine interaction owing to their self-sustainability, low cost, easy manufacturing, and diverse configurations. However, some limitations (e.g., a large number of electrodes, multiple lines, and chunks) observed in previous works hinder the further development of human–machine interaction applications. Herein, a triboelectric encoding interface is proposed by designing the reverse polarity of the tribo-layers to encode the triboelectric output signals. Owing to the inversion of the tribo-layers and the number of strip electrodes, this encoding method can realize multipurpose interactive commands by using fewer electrodes and a simple structure only in one macroscopic triboelectric device, which greatly reduces the size of the device as well as the influence of external factors on the coded signal output. As a demonstration, a ring with the patterned triboelectric interface (15 mm × 20 mm) achieves slide presentation and remote electric device control. In addition, the triboelectric sensor has good sensitivity (1.55 V/N) and durability (> 30,000 cycles). This new encoding mode shows the high applicability of the operation mode in diversified interactive applications, which provides more design strategies for intelligent control.

Keywords

human–machine interfacessmart controltriboelectric sensorsingle electrodenanostructure

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Nano Research
Volume 15 Issue 10,
October 2022
Pages 9352-9358
DOI: 10.1007/s12274-022-4564-3
Cite this article:
Feng Z, He Q, Wang X, et al. Multimode human–machine interface using a single-channel and patterned triboelectric sensor. Nano Research, 2022, 15(10): 9352-9358. https://doi.org/10.1007/s12274-022-4564-3
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