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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

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A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
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Electrostatic Smart Textiles for Braille-To-Speech Translation.

Zhaoyang Li1, Zhe Liu1, Sumei Xu2

  • 1Department of Electromechanical Engineering and Centre for Artificial Intelligence and Robotics, University of Macau, Macau, SAR, 999078, China.

Advanced Materials (Deerfield Beach, Fla.)
|March 19, 2024
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Summary

This study introduces a wearable Braille-to-speech system using fabric-based electrostatic transducers. This innovative assistive technology translates Braille into speech with high accuracy, improving life for visually impaired individuals.

Keywords:
Braille‐to‐speech translationelectrostatic transducershuman–machine interactionloudspeakers, textiles

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Area of Science:

  • Assistive Technology
  • Wearable Electronics
  • Biomedical Engineering

Background:

  • Existing Braille-to-speech systems lack comfort and integration.
  • Auditory feedback is crucial for individuals with visual impairments and speech difficulties.

Purpose of the Study:

  • To develop a comfortable and integrated wearable Braille-to-speech translation system.
  • To utilize dual-functional electrostatic transducers for tactile sensing and speech output.

Main Methods:

  • Fabric-based dual-functional electrostatic transducers were designed and fabricated.
  • Electrostatic induction principles were applied for transducer operation.
  • Machine learning algorithms were integrated for Braille translation.

Main Results:

  • The electrostatic transducers demonstrated excellent performance, robustness, and stability.
  • The system achieved 99.09% accuracy for Braille alphabet translation.
  • The system achieved 97.08% accuracy for 40 common words translation.

Conclusions:

  • A novel wearable Braille-to-speech system using integrated fabric transducers was successfully developed.
  • This technology offers a promising advancement in assistive devices for disabled individuals.
  • The dual-functional nature of the transducers enhances system integration and comfort.