Development of a motion measurement system of a long cane for Visually Impaired People in rehabilitation

Reyes Leiva, Karla Miriam and Sánchez Lara, Sergio and Jaén Vargas, Milagros Quilimara and Serrano Olmedo, José Javier (2020). Development of a motion measurement system of a long cane for Visually Impaired People in rehabilitation. In: "XXXVIII Congreso Anual de la Sociedad Española de Ingeniería Biomédica (CASEIB 2020)", 25/11/2020 - 27/11/2020, Congreso Virtual. ISBN 978-84-09-25491-0. pp. 194-197.

Description

Title: Development of a motion measurement system of a long cane for Visually Impaired People in rehabilitation
Author/s:
  • Reyes Leiva, Karla Miriam
  • Sánchez Lara, Sergio
  • Jaén Vargas, Milagros Quilimara
  • Serrano Olmedo, José Javier
Item Type: Presentation at Congress or Conference (Article)
Event Title: XXXVIII Congreso Anual de la Sociedad Española de Ingeniería Biomédica (CASEIB 2020)
Event Dates: 25/11/2020 - 27/11/2020
Event Location: Congreso Virtual
Title of Book: XXXVIII Congreso Anual de la Sociedad Española de Ingeniería Biomédica (CASEIB 2020)
Date: 2020
ISBN: 978-84-09-25491-0
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img] PDF - Users in campus UPM only - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB)

Abstract

The rehabilitation of a blind person is a systematic process where the person is dotted with tools that allow them to deal with the impairment, including the correct use of the long cane for navigation in the Orientation and Mobility training. In this process, technology as inertial measurement sensors could be included to track the motion of the cane in order to evaluate the correct use. One sensor added to the cane can provide valuable information about orientation, position, velocity and trajectory of the tip. In this research, a system was developed by adding a BNO055 inertial sensor to the lower part of the long cane in order to analyze the output with the help of Arduino, Simulink and MATLAB. A method was developed to obtain qualitative information about the movements of the long cane during the training of mobility and the reliability was tested. The tests were carried out with a real cane, in isolated situations and a controlled environment, corresponding to real techniques that will be trained during rehabilitation. The experimental results indicate that the parameters obtained in the orientation test and in the short displacement test presented a standard error ~1% in both cases and an accuracy of 98 and 97% respectively. However, for the sliding test for simulation of the diagonal technique, the difference in the value of the mean obtained with respect to the real value was 39%. Despite presenting reproducibility in tests with low standard errors, to obtain precise displacement or position value, a more complex census is required, or a new method should be developed for evaluation. The system requires further development in order to be used in the assistant program for the rehabilitation process.

More information

Item ID: 65876
DC Identifier: http://oa.upm.es/65876/
OAI Identifier: oai:oa.upm.es:65876
Deposited by: Memoria Investigacion
Deposited on: 20 Apr 2021 13:59
Last Modified: 20 Apr 2021 13:59
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM