Proximity-Detecting and Object Identifying Device for the Visually Impaired

Authors

  • Abrahaim Joshua Cerillo
  • , Jim Daniel A. Giron
  • William Edson M. Torino

Keywords:

Vision impairment, blind, moderate to severe, difficulty, ultrasonic sensor, GPS, Arduino Nano, Arduino IDE, indoor use, obstacle

Abstract

INTRODUCTION

An estimated 253 million people live with vision impairment: 36 million are blind and 217 million have moderate to severe vision impairment (WHO, 2017), this means that many among us have difficulty in participating on many activities that we perform. Frequently, blindness impacts a person's ability to perform many job functions, which can limit their career options (Sminkey, n.d.). This may dramatically affect their finances and their self-esteem. in this study, we sought to construct a device that would heavily aid those with visual impairment.

METHODS

A device equipped with ultrasonic sensors and a GPS was used. The device was constructed using various sensors and modules that revolved around the workings of an Arduino Nano microcontroller. The device had the ability to warn its user about an incoming obstacle and identify the obstacle itself. Additionally, the device was designed for indoor use. An Arduino microcontroller was used as the microprocessor of the device and was programmed with the Arduino IDE. Data was collected through quantitative means of functionality tests and evaluation forms.

RESULTS

The device was subjected to functionality tests with 10 trials and 3 repetitions. Additionally, it also underwent evaluation from its users with criteria such as: Design, Functionality, and Innovation. The functionality tests gave results of a) 80% for its detecting function and b) 70% to its identifying function. The evaluation of its users gave an output of 3.58 which indicates a rating found between "Neutral" to "Satisfied". The device showed greater performance towards its functionality and design when compared to its innovation aspect. The results also gave off a discrepancy in connection of its functionality tests and evaluated functionality which calls for a review concerning the features of the device.

DISCUSSIONS

The results demonstrated that the device performed above average, regarding its functionality and evaluation however, the need for many improvements is still present, especially its evaluation from its users. Therefore, it is seen as a fact that certain components of the device could possibly be improved or substituted with better alternatives.

Published

2019-01-18