Accessible Optical Wireless Pedestrian-Support Systems for Individuals with Visual Impairment

Author

Kii, Hirotoshi ; Murata, Y. ; Oshiba, Saeko ; Nagai, Yukie ; Watanabe, Hiromi ; Iki, Shunsuke ; Kitani, Yoji ; Kuwahara, Noriaki ; Morimoto, Kenichi

Author_Institution

Grad. Sch. of Electron., Adv. Fibro-Sci., Design Eng. & Manage., Kyoto Inst. of Technol. Kyoto, Kyoto, Japan

fYear

2014

fDate

Aug. 31 2014-Sept. 4 2014

Firstpage

776

Lastpage

779

Abstract

We construct a pedestrian support system using visible-light communication with self-illuminated bollards. The system is designed for the requirements of people with weak eyesight and the elderly to notify them of danger and obstacles such as steps and signals. The luminescent color that the color temperature of 2000 K, that is orange, is suitable for communication. And we demonstrate prototype models of visible-light communication with 4PPM modulation format. Moreover, we carry out evaluation experiments with visually impaired people to determine the best distance for danger notification.

Keywords

assisted living; handicapped aids; optical communication; pedestrians; 4PPM modulation format; luminescent color; optical wireless pedestrian-support system; self-illuminated bollards; temperature 2000 K; visible-light communication; visually impaired people; Image color analysis; Legged locomotion; Light emitting diodes; Modulation; Optical transmitters; Prototypes; Receivers; bollard; pedestrian support; visible-light communication; weak eyesight;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Applied Informatics (IIAIAAI), 2014 IIAI 3rd International Conference on

Conference_Location

Kitakyushu

Print_ISBN

978-1-4799-4174-2

Type

conf

DOI

10.1109/IIAI-AAI.2014.156

Filename

6913400