Presenting braille information on two fingers using vibratory patterns from an array of shape-memory alloys

Nuttasorn Aiemsetthee, Hideyuki Sawada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, a wearable Braille display is developed to present Braille information on two fingers (an index finger and a middle finger). We use shape-memory alloy (SMA) wires as an actuator that generates micro-vibration by applying pulse current. Possible vibrating patterns are firstly examined to find the best frequency and timing for presenting Braille information on two fingers. The display has six dots to present one Braille character at one time. For Braille presentation, the actuators in the display are driven by pulse current with the same or different frequencies and different time durations. In addition, to increase recognition rate, we add a button by which a subject starts or restarts Braille presentation. Users' experiments are conducted to verify the ability of the Braille display.

Original languageEnglish
Title of host publicationProceedings - 2020 13th International Conference on Human System Interaction, HSI 2020
PublisherIEEE Computer Society
Pages322-327
Number of pages6
ISBN (Electronic)9781728173924
DOIs
Publication statusPublished - 2020 Jun
Event13th International Conference on Human System Interaction, HSI 2020 - Tokyo, Japan
Duration: 2020 Jun 62020 Jun 8

Publication series

NameInternational Conference on Human System Interaction, HSI
Volume2020-June
ISSN (Print)2158-2246
ISSN (Electronic)2158-2254

Conference

Conference13th International Conference on Human System Interaction, HSI 2020
CountryJapan
CityTokyo
Period20/6/620/6/8

Keywords

  • Braille display
  • Mobile
  • SMA wire
  • Time duration
  • Vibration frequency

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Software

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