scholarly journals A Multidimensional Walking Aid for Visually Impaired Using Ultrasonic Sensors Network with Voice Guidance

Author(s):  
Olakanmi O. Oladayo
Author(s):  
Budi Prijo Sembodo ◽  
Moh. Thoyib

In the 4.0 era, walking aids for the visually impaired are needed, especially when the user is indoors and outdoors. There are already many tools created, one of which the author wants to make is a wristband. Components include: Ultrasonic Sensor HC-SR04, Arduino Nano, Servo SG90 Motor, and Buzzer. The stages in this study are designing hardware, designing programs, and implementing and testing tools. The testing carried out on this tool is to read the results of objects with distances of 80cm, 90cm, 100cm, 110cm and 120cm. Not only did it test the distance, it also tested the rotation angle performed by the servo motor to drive ultrasonic sensors by 0o,60o,and 120o. It aims to be able to detect in any direction. The results of this tool test have a repeatability rate of 98%, as well as a 97.33% success rate for detecting objects.


2019 ◽  
Vol 8 (2S8) ◽  
pp. 1675-1676

The point of this paper is to research the improvement of a route help for visually impaired and outwardly weakened People. It has microcontroller which has wifi inbuilt module. This guide is convenient and offers data to the client to move around in new condition, regardless of whether indoor or open air, through an easy to use interface. Then again, and so as to lessen route challenges of the visually impaired, a deterrent location framework utilizing ultrasounds and vibrators is added to this gadget. The proposed framework identifies the closest hindrance through ultrasonic sensors and it gives an alert to illuminate the visually impaired about its confinement.


2019 ◽  
pp. 15-22
Author(s):  
Norma Alejandra Ledesma-Uribe ◽  
Berenice Cardoso-Falcón ◽  
Oliva Orres-García

It is increasingly common for engineering degrees to include the teaching of programming in their curricula. The present work focuses on the teaching of basic Arduino IDE programming and implementation of an Arduino Uno board. The teaching of Arduino IDE programming is basic and can be applied to related careers such as Information Technology and Mechatronics. It is an appropriate model so that the students of these careers are motivated to visualize in concrete form the results of the programs developed by them. An Arduino Uno board was introduced as the main element, based on hardware and software principles for the implementation of programming practices whose inputs and outputs are HC-04 ultrasonic sensors and other components such as Buzzer and Micromotor. This work is based on the planning of a smart cane prototype that helps visually impaired people. These learnings acquired on basic programming in Arduino IDE, can be implemented in different projects where Arduino Uno is used


Author(s):  
Javier Ferreira ◽  
Thiago Henrique Gomes Lobato ◽  
Gustavo da Silva Vieira de Melo ◽  
Rodrigo Marques dos Santos

The numbers of elderly people are rising in countries like India and China. Most of the elderly uses a walking stick for their commuting. Also blind peoples need a walking aid for their day to day life. This work mainly focuses on the design and development of a proactive walking aid for the blind and the elderly peoples. The stick is designed mainly using a ultrasonic sensors which is fit along with the existing hardware. This work analyses various difficulties that a person with disabilities faced in their life. So this work caters or handles most of the aspect an elderly or blind is needed using Internet of Things (IoT). Apart from the ultrasonic sensors it employs a buzzer that beeps when a person or object is approaching in front of the stick. Whenever a person with the stick get hit or stuck somewhere for a predefined time, then an alert along with the GPS coordinates sent to the emergency contact. Most of the literature supports a stick with reactive in nature, this work supports a proactive approach as it predicts the object at a distance rather than after it touches the stick. This system also employs machine learning algorithms to predict the nature of the person using the stick. Our results have shown that the stick can be the only aid that either an elderly or blind people can use.


2021 ◽  
Vol 21 (2) ◽  
pp. 91-96
Author(s):  
Kyungsuk Cho ◽  
Donggu Seo ◽  
Sangheon Donggu ◽  
Jongho Lee

To develop a walking aid tool that can help the visually impaired to evacuate in the event of fire, a questionnaire was devised and 100 visually impaired people were surveyed. The questionnaire was divided into four categories: fire safety education and training, self-evacuation in the event of fire, direction checking method, and applicability of an auxiliary evacuation tool. The questionnaire was conducted through a web survey and was followed by an in-depth interview with the visually impaired. The questionnaire results indicated that the respondents prefer wristband-type and conventional cane-type aid tools, which are convenient to wear and render both hands free, as evacuation walking aid tools as well as voice and touch as information sharing methods.


2021 ◽  
pp. 81-85
Author(s):  
Sonia Jenifer Rayen ◽  

This fundamental point of this task to give a voice-based route framework for the outwardly tested voice acknowledgment module and it is planned to give in general estimates object discovery and constant help through Worldwide Situating Framework (GPS) and ultrasonic sensors. This venture focuses on the advancement of an Electronic Voyaging Help (Estimated time of arrival) unit to assist the visually impaired individuals with finding an impediment free way. This Estimated time of arrival is fixed to the stick of the outwardly tested. At the point when the item is distinguished close to the stick of the outwardly hindered it cautions them with the assistance of the vibratory circuit. The outwardly tested will give the objective's name as the contribution to the voice acknowledgment module. GPS module persistently gets the scope and longitude of the current area. GPS contrasts it and the objective's scope and longitude. The outwardly tested gets the articulated headings which he wants to follow to arrive at his objective


Author(s):  
Eklas Hossain ◽  
Md Raisuddin Khan ◽  
Riza Muhida ◽  
Ahad Ali

Visually impaired people are faced with challenges in detecting information about terrain. This paper presents a new walking support system for the blind to navigate without any assistance from others or using a guide cane. In this research, a belt, wearable around the waist, is equipped with four ultrasonic sensors and one sharp infrared sensor. Based on mathematical models, the specifications of the ultrasonic sensors are selected to identify optimum orientation of the sensors for detecting stairs and holes. These sensors are connected to a microcontroller and laptop for analyzing terrain. An algorithm capable of classifying various types of obstacles is developed. After successful tests using laptop, the microcontroller is used for the walking system, named ‘Belt for Blind’, to navigate their environment. The unit is also equipped with a servo motor and a buzzer to generate outputs that inform the user about the type of obstacle ahead. The device is light, cheap, and consumes less energy. However, this device is limited to standard pace of mobility and cannot differentiate between animate and inanimate obstacles. Further research is recommended to overcome these deficiencies to improve mobility of blind people.


Author(s):  
Rashidah Funke Olanrewaju ◽  
Muhammad Luqman Azzaki Mohd Radzi ◽  
Mariam Rehab ◽  
Fawwaz Eniola Fajingbesi

<p>The joy we derive from our ability to commute and interact freely with the world as a result of our possession of sight with the naked eyes are enormous however the Visually impaired people find great difficulty in moving around freely without a human guide, especially in a new terrain. This research reports the design and fabrication process of an intelligent walking staff (iWalk) specially designed for the visually disabled individuals to argument their loss of sight, improve and ease their navigation. iWalk was designed around water and ultrasonic sensors to detect obstacles and water ahead. iWalk also has a wireless RF remote control buzzer for localization and detection in case it gets misplaced. The proposed system operability and efficiency was adequately tested using physical dataset composed of randomized locations with random obstacles and water. The proposed algorithm achieves an overall efficiency of 90% detection rate for water and ultrasonic sensor and 85.75% for the RF wireless remote control.</p>


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