Published June 21, 2015
| Version v1
Journal article
Open
A Hands-Free Obstacle Detection and Avoidance System
Authors/Creators
- 1. Department of Engineering, The Australian College of Kuwait, Kuwait
Description
In this paper, we present a low cost hands-free detection and avoidance system designed to provide mobility assistance for visually impaired people. An ultrasonic sensor is attached to the jacket of the user and detects the obstacles in front. The information obtained is transferred to the user through audio messages and also by a vibration. The range of the detection is user-defined. A text-to-speech module is employed for the voice signal. The proposed obstacle avoidance device is cost effective, easy to use and easily upgraded.
Files
2-562-ed.pdf
Additional details
References
- D. Pascolini, S. P. Mariotti, “Global estimates of visual impairment: 2010”, British Journal of Ophthalmology, Vol. 96, No. 5, pp. 614-618, 2012
- http://www.ultracane.com/about_the_ultracane
- http://psychologydictionary.org/mowat-sensor
- http://www.techopedia.com/ definition/16446/state-diagram
- Ultrasonic Transducers Technical Notes, Olympus, 2006 (available at: www.olympus-ims.com/data/File/panametrics/UT-technotes.en.pdf)
- http://arduino.cc/en/Main/arduinoBoardUno
- Emic 2 Text-to-Speech Module (#30016), Parallax inc, 2012 (available through: Mouser Electronics Website http://www.mouser. com/ds/2/321/30016-Emic2TextToSpeech-v1.1-27211.pdf)
- LV-EZ1MaxbotixUltrasonic, Rangefinder, http://www.adafruit.com/ products/172
- Sparkfun.com. 2009. Vibration Motor-ROB-08449-SparkFun Electronics (available at: https://www.sparkfun.com/ products/8449)