An approach for the measurement of distance travelled by blind and visually impaired people

M. Bousbia-Salah; A. Larbi; M. Bedda; IEEE

doi:10.1109/ICECS.2003.1301756

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Conference proceeding

An approach for the measurement of distance travelled by blind and visually impaired people

M. Bousbia-Salah, A. Larbi, M. Bedda and IEEE

10th IEEE International Conference on Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003, Vol.3, pp.1312-1315 Vol.3

2003

DOI: https://doi.org/10.1109/ICECS.2003.1301756

Abstract

Acceleration

Accelerometers

Circuits

Contacts

Distance measurement

Electronic mail

Employment

Navigation

Switches

Ultrasonic variables measurement

The research we are reporting here is part of our effort to develop a navigation system for the blind. Our long-term goal is to create a portable, self contained system that will allow visually impaired individuals to travel through familiar and unfamiliar environments without the assistance of guides. In order to overcome the imperfections of existing electronic travel aids for the blind, this paper describes then, the problem of distance measurement. The proposed system is based on the technique of using an accelerometer and double integrating its output with respect to time. This method suffers from drift problems caused by the double integration and offset of the accelerometer which are overcome by the footswitch. This footswitch is used to allow a PC through an interface card to provide frequent corrections of drift effects. From this study, more compatible navigation aids can be developed for blind pedestrians.

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Details

Title: An approach for the measurement of distance travelled by blind and visually impaired people
Creators - without role: M. Bousbia-Salah - Badji Mokhtar University
A. Larbi - Badji Mokhtar University
M. Bedda - Badji Mokhtar University
IEEE
Publication Details: 10th IEEE International Conference on Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003, Vol.3, pp.1312-1315 Vol.3
Publisher: IEEE
Identifiers: 9912383408331
Academic Unit: Al Jouf University
Language: English
Resource Type: Conference proceeding