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Technical Brief

Wearable Virtual White Cane: Assistive Technology for Navigating the Visually Impaired1

[+] Author and Article Information
Yabiao Gao, Ka-Wai Kwok, Alex Squires, Ho Tse

College of Engineering,
University of Georgia,
Athens, GA 30602

Rahul Chandrawanshi

Indian Institute of Technology (BHU),
Indian Banaras Hindu University,
Varanasi, Uttar Pradesh 221005, India

Amy C. Nau

University of Pittsburgh Medical Center,
Pittsburgh, PA 15213

Accepted and presented at the Design of Medical Devices Conference (DMD2014), Minneapolis, MN, April 7–10, 2014.DOI: 10.1115/1.4027033

Manuscript received February 21, 2014; final manuscript received March 3, 2014; published online April 28, 2014. Editor: Arthur G. Erdman.

J. Med. Devices 8(2), 020931 (Apr 28, 2014) (2 pages) Paper No: MED-14-1062; doi: 10.1115/1.4027033 History: Received February 21, 2014; Revised March 03, 2014

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Figures

Grahic Jump Location
Fig. 1

(a) Four wearable units providing panoramic sensing data; (b) path 1 (blue) is 80 m long, where the subject encountered three T-junctions and made two right turns. Path 2 (red) is 65 m long with one T-junction, two left turns, and one set of stairs.

Grahic Jump Location
Fig. 2

(a) Key components, along with wireless charging circuit held tightly in the box. The Seeeduino controller and audible buzzer are secured tightly on the printed circuit film. (b) The sensing unit in a small box (54 × 37 × 23 mm).

Grahic Jump Location
Fig. 3

Average navigation time of five subjects

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