NDLI: Development of a Braille Display using Piezoelectric Linear Motors

Content Provider	IEEE Xplore Digital Library
Author	Hyun-Cheol Cho Byeong-Sang Kim Jung-Jun Park Jae-Bok Song
Copyright Year	2006
Description	Author affiliation: Dept. of Mech. Eng., Korea Univ., Seoul (Hyun-Cheol Cho; Byeong-Sang Kim; Jung-Jun Park; Jae-Bok Song)
Abstract	The refreshable Braille displays for visually impaired people should be portable and capable of real-time display. To this end, the actuators used to move Braille dots should be small and lightweight. So far various actuators such as solenoids, piezoelectric materials, electroactive polymers have been suggested, but these actuators have not been very successful for various reasons. In this research, piezoelectric linear motors were adopted for this purpose. These actuators can provides the response time fast enough to offer real-time display, and are small and lightweight enough to be employed for a portable device. In this paper, the details of the proposed Braille cell consisting of six piezoelectric linear motors are discussed. The electrical circuit to drive the motors is also introduced. Various tests have been conducted for seven visually impaired people. These tests for the prototype Braille display system show that it can deliver the Braille information which can be well recognized by visually impaired people
Starting Page	1917
Ending Page	1921
File Size	5795367
Page Count	5
File Format	PDF
ISBN	8995003847
DOI	10.1109/SICE.2006.315344
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-18
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	The Institute of Control, Automation and Systems
Subject Keyword	Computer displays Solenoids Piezoelectric materials Polymers Shape memory alloys Piezoelectric actuators Delay Circuit testing System testing Personal digital assistants Piezoelectric linear motor Braille cell Braille display
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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