Low Cost GPS and GSM Based Navigational Aid for Visually Impaired People

2016 ◽  
Vol 92 (4) ◽  
pp. 1575-1589 ◽  
Author(s):  
Rahul Dhod ◽  
Gurmohan Singh ◽  
Gagandeep Singh ◽  
Manjit Kaur
Keyword(s):  
Visually Impaired ◽  
Low Cost ◽  
Visually Impaired People ◽  
Impaired People ◽  
Navigational Aid

Low cost audio based intelligent guidance system for visually impaired people

2020 ◽  
Vol 24 (03) ◽  
pp. 515-520
Author(s):  
Vattumilli Komal Venugopal ◽  
Alampally Naveen ◽  
Rajkumar R ◽  
Govinda K ◽  
Jolly Masih
Keyword(s):  
Visually Impaired ◽  
Low Cost ◽  
Guidance System ◽  
Visually Impaired People ◽  
Impaired People

scholarly journals A Hands-Free Obstacle Detection and Avoidance System

2015 ◽  
Vol 5 (3) ◽  
pp. 801-804
Author(s):  
M. Abdul-Niby ◽  
M. Alameen ◽  
O. Irscheid ◽  
M. Baidoun ◽  
H. Mourtada
Keyword(s):  
Obstacle Avoidance ◽  
Visually Impaired ◽  
Low Cost ◽  
Cost Effective ◽  
Obstacle Detection ◽  
Text To Speech ◽  
Voice Signal ◽  
Visually Impaired People ◽  
Impaired People ◽  
The Voice

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.

scholarly journals Development of a low-cost senor based aid for visually impaired people

2016 ◽  
Vol 2 (1) ◽  
pp. 727-730
Author(s):  
Nora Loepthien ◽  
Tanja Jehnichen ◽  
Josephine Hauser ◽  
Benjamin Schullcke ◽  
Knut Möller
Keyword(s):  
Learning Process ◽  
Visually Impaired ◽  
Low Cost ◽  
Tactile Feedback ◽  
Economic Aspects ◽  
Visually Impaired People ◽  
Impaired People ◽  
The Subject ◽  
Pass Through

AbstractThe aim of the project is the development of an aid for blind or visually impaired people, considering economic aspects as well as easy adaptability to various daily situations. Distance sensors were attached to a walking frame (rollator) to detect the distance to obstacles. The information from the sensors is transmitted to the user via tactile feedback. This is realized with a number of vibration motors which were located at the upper belly area of the subject. To test the functionality of the aid to the blind, a testing track with obstacles has been passed through by a number of volunteers. While passing the track five times the needed time to pass through, as well as the number of collisions, were noticed. The results showed a decline in the average time needed to pass though the testing track. This indicates a learning process of the operator to interpret the signals given by the tactile feedback.

Passive Haptic Learning of Taiwanese Braille Writing for Visually Impaired Individuals

2020 ◽  
Author(s):  
Chien-Hsing Chou ◽  
Yi-Zeng Hsieh ◽  
Shih-Syun Lin ◽  
Tao-Jen Yang ◽  
Wei-An Chen ◽  
...  
Keyword(s):  
Visually Impaired ◽  
Learning Strategy ◽  
Low Cost ◽  
Teaching System ◽  
Visually Impaired People ◽  
Impaired People ◽  
Practice Mode ◽  
Input Module ◽  
Haptic Learning ◽  
User Friendly

In this article, a passive haptic learning method for Taiwanese Braille writing was developed for visually impaired individuals through the employment of an effective user-friendly learning strategy. This system was designed with portability and low cost by applying the learning concept of passive haptic learning. This system designed a pair of gloves for visually impaired people to study Braille writing. Furthermore, we also designed a Braille writing teaching system for visually impaired people to learn and practice the Braille writing. Depending on the learning content, the corresponding vibration motors on the glove fingertips vibrate to produce the Taiwan Braille input gestures. The visually impaired people then feel tactile vibration feedback from the glove fingertips. In addition, the corresponding auditory feedback is provided from the Braille writing teaching system. After receiving a series of tactile vibration feedback, user’s finger muscles could memorize the corresponding Braille input gestures by the passive haptic learning. In the practice mode, the teaching system randomly selects practice content and announces the selected content in an auditory manner. Visually impaired users must then input the corresponding Braille codes by using the Braille writing input module. This mode can further reinforce users’ memorization of correct Braille codes for Mandarin characters.

scholarly journals An Innovative Approach to Build a Low Cost Braille Embosser

2020 ◽  
pp. 823-826
Author(s):  
Vaibhavi Naik ◽  
Amey Joshi ◽  
Ritesh Gupta ◽  
Kaustubha Pavaskar ◽  
Prajakta Tanksali
Keyword(s):  
Visually Impaired ◽  
Low Cost ◽  
Normal Person ◽  
Text File ◽  
Image Processing Techniques ◽  
Visually Impaired People ◽  
Impaired People ◽  
Processing Techniques ◽  
Reading Interest ◽  
Maximum Content

Visually impaired people have to deal with various challenges since they cannot see anything with their eyes and even some visually impaired people are not able to read the content of their interest so they fail to gain knowledge from reading as much as a normal person can obtain. Visually impaired people have some content available in the braille format that they can read but not all content of their reading interest is available in the braille format. Therefore, braille embosser will help to make available the maximum content of their reading interest in the braille format at an affordable cost. In this project, the user will have to upload an image of blinds reading interest, which is to be converted in the braille format. Initially, we will extract the text from a text image and save the text file using different image processing techniques. Then each character stored in the text file will be converted to the respective braille format using ASCII values and then converted text will be embossed using the braille embosser, which will make the content available for the blind community.

scholarly journals Design of smart stick for visually impaired people using Arduino

2019 ◽  
Vol 6 (6) ◽  
pp. 58-71
Author(s):  
Ramiz Salama ◽  
Ahmad Ayoub
Keyword(s):  
Visually Impaired ◽  
Low Cost ◽  
Ultrasonic Sensor ◽  
World Health ◽  
Blind People ◽  
Independent Manner ◽  
C Language ◽  
Visually Impaired People ◽  
Impaired People ◽  
Health Organization

Nowadays, blind or impaired people are facing a lot of problems in their daily life since it is not easy for them to move, which is very dangerous. There are about 37 million visually impaired people across the globe according to the World Health Organization. People with these problems mostly depend on others, for example, a friend, or their trained dog while movıng outside. Thus, we were motivated to develop a smart stick to solve this problem. The smart stick, integrated with an ultrasonic sensor, buzzer and vibrator, can detect obstacles in the path of the blind people. The buzzer and vibration motor are activated when any obstacle is detected to alert the blind person. This work proposes a low-cost ultrasonic smart blind stick for blind people so that they can move from one place to another in an easy, safe and independent manner. The system was designed and programmed using C language. Keywords: Arduino Uno, Arduino IDE, ultrasonic sensor, buzzer, motor.

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