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http://dx.doi.org/10.6109/jkiice.2017.21.1.99

Bidirectional BLE enabled Audible Pedestrian Signal for Visual Impaired Pedestrian  

Kim, Ju-Wan (Hyper-connected Communication Research Laboratory, ETRI)
Kim, Jungsook (Hyper-connected Communication Research Laboratory, ETRI)
Na, Dong-Gil (Hyper-connected Communication Research Laboratory, ETRI)
Kim, Hyoung-Sun (Hyper-connected Communication Research Laboratory, ETRI)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.1, 2017 , pp. 99-106 More about this Journal
Abstract
Audible Pedestrian Signal(APS) is an additional equipment to provide information about pedestrian signals in non-visual formats such as audible tones and verbal messages. It can provide information to pedestrians about the location and directions of a crosswalk, and the traffic signal status. In general, a pedestrian who is visually impaired uses a 358.5MHz wireless remote controller to activate the APS and crosses at the crosswalk with the help of the APS. The existing APS can only receive an activation message from the remote controller. Therefore, the APS has an issue, especially at intersections, that all APSs within the communication range of the remote controller are activated simultaneously. It makes to confuse the visual impaired pedestrians. In this paper, we propose a BLE-enabled APS that can enable two-way communication via Bluetooth with a smartphone. The proposed system solves the problem and provides them with additional information, so that visually impaired pedestrians can cross at the crosswalk more conveniently.
Keywords
Bluetooth; Audible Pedestrian Signal; Visual Impaired Pedestrian; Intersection; etc;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 G.-I. Choi et al, "A Research Report on Convenience Movement Conditions for the Mobility Handicapped 2014," Ministry of Land, Infrastructure and Transport, Research Report 11-1613000-000670-01, 2015.
2 National Cooperative Highway Research Program. Accessible Pedestrian Signals: A Guide to Best Practices [Internet]. Available: http://www.apsguide.org/.
3 Wayfindr. Open Standard for Audio-based Wayfinding [Internet]. Available: https://www.wayfindr.net/open-standard/.
4 Korean National Police Agency Specification, Accessible Pedestrian Signals Specification for Visually Impaired (2009. June), Korean National Police Agency, 2009.
5 W. G. Han, K. W. Shin, K. C. Choi, N. S. Kim and S. H. Sohn, "A Study on Intelligent Mobility Enhancement System for the Mobility Handicapped," The Journal of Korean Institute of Intelligent Transport Systems, vol. 9, no. 5, pp. 25-37, Oct. 2010.
6 G. H. Kwon and T. H. Han, "Development on APS (Accessible Pedestrian Signal) for Visually Impaired using GPS," Korea Road Traffic Authority Traffic Science Institute, Research Report 2014-0111-109, 2014.