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A Human-machine-interface Integrating Low-cost Sensors with a Neuromuscular Electrical Stimulation System for Post-stroke Balance Rehabilitation

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Contactless User-Interactive Sensing Display for Human-Human and Human-Machine Interactions.

Jiaqi He^1,2,3, Ruilai Wei¹, Xiaole Ma¹

¹Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China.

Advanced Materials (Deerfield Beach, Fla.)

|April 4, 2024

Summary

This summary is machine-generated.

This study introduces a large-scale, dynamic display that uses humidity-induced light for touchless interaction. This innovative sensing display enables new human-machine communication methods, especially for those with disabilities.

Keywords:

breathing monitoring contactless sensing human–machine interactions user‐interactive sensing displays visual humidity sensing

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Area of Science:

Materials Science
Human-Computer Interaction
Optoelectronics

Background:

Developing large-scale contactless user-interactive sensing displays (CUISD) is vital for advanced human-human and human-machine interactions.
Existing technologies face challenges in achieving optimal features like responsiveness, scalability, and interactivity.

Purpose of the Study:

To report a novel CUISD based on dynamic alternating current electroluminescence (ACEL) that responds to humidity.
To demonstrate the integration of a highly responsive hydrogel for subsecond humidity-induced luminescence.
To showcase the device's potential for real-time control and assistive communication.

Main Methods:

Fabrication of a stretchable, large-scale, high-resolution, multicolor ACEL layer using electrospinning and microfabrication.
Integration of a patterned silver nanofiber electrode and a hydrogel-infused luminescence layer.
Implementation of the CUISD for touchless control via humidity signals from finger movements and breathing recognition.

Main Results:

Achieved subsecond humidity-induced luminescence for dynamic display responses.
Demonstrated a stretchable, large-scale, high-resolution, multicolor CUISD.
Successfully implemented real-time control of a remote-controlled car using touchless commands.
Showcased the CUISD's capability as a visual signal transmitter for information interaction, including breathing recognition.

Conclusions:

The developed CUISD offers a novel approach to human-machine interaction through humidity-sensitive dynamic electroluminescence.
This technology has significant potential for applications in virtual/augmented reality, the metaverse, and assistive technologies for individuals with disabilities.
The study presents a paradigm shift in interactive display technology, paving the way for intuitive and versatile user interfaces.