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 Low cost real time braille keypad for communication

2018 ◽  
Vol 7 (2.8) ◽  
pp. 77
Author(s):  
Lakshmi Prabha.P ◽  
Sanjanamenon EJ ◽  
Christina Samuel ◽  
Ganga Ramesh
Keyword(s):  
Mobile Phones ◽  
Visually Impaired ◽  
Educational Software ◽  
Low Cost ◽  
Assistive Device ◽  
Normal Person ◽  
Text To Speech ◽  
Visually Impaired People ◽  
Impaired People ◽  
Communication Methods

Visually impaired people find it challenging to use devices such as computers, and other digital/educational software like every normal person does in this technology driven world. Due to their inability to gainaccess to basic and vital information they sometimes feel excluded from the society and also limit their knowledge. Several attempts have beenmade in the recent years toimprove their communication methods such as tactile sign language, Braille glove, and Audioacces devices so on. This paper suggests an innovative assistive device, a Braille keypad, for the viually impaired that would help them use computers just like a normal person. The Braille keypad implements the Braille cells as 6 switches that can be pressed simultaneously based on the actual Braille combination in order to type a particular letter and words. The corresponding letters/words are displayed as well as can be heard by the user. A text to speech algorithm is implemented using puTTY software which would help the user confirm what he/she has typed is right. In this way it enables them to interact and communicate as well as use computers and mobile phones much like a normal person.

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 Assistive Robot For Visually Impaired People

2021 ◽  
Vol 2089 (1) ◽  
pp. 012056
Author(s):  
K.A. Sunitha ◽  
Ganti Sri Giri Sai Suraj ◽  
G Atchyut Sriram ◽  
N Savitha Sai
Keyword(s):  
Obstacle Avoidance ◽  
Visually Impaired ◽  
The Novel ◽  
Visually Impaired People ◽  
Detection And Identification ◽  
Assistive Robot ◽  
Impaired People ◽  
The Subject ◽  
Personal Assistant ◽  
Correct Path

Abstract The proposed robot aims to serve as a personal assistant for visually impaired people in obstacle avoidance, in identifying the person (known or unknown) with whom they are interacting with and in navigating. The robot has a special feature in truly locating the subject’s location using GPS. The novel feature of this robot is to identify people with whom the subject interacts. Facial detection and identification in real-time has been a challenge and achieved with accurate image processing using viola jones and SURF algorithms. An obstacle avoidance design has been implanted in the system with many sensors to guide in the correct path. Hence, the robot is a fusion of providing the best of the comfort and safety with minimal cost.

Human Computer Interface for Victims using FPGA

2015 ◽  
Vol 3 (2) ◽  
pp. 245-250
Author(s):  
M. S. Heetha ◽  
M. Shenbagapriya ◽  
M. Bharanidharan
Keyword(s):  
Speech Signal ◽  
Visually Impaired ◽  
English Language ◽  
Computer Interface ◽  
Human Computer Interface ◽  
Visually Impaired People ◽  
Education Environment ◽  
Impaired People ◽  
Visually Impaired Students ◽  
The Voice

Visually impaired people face many challenges in the society; particularly students with visual impairments face unique challenges in the education environment. They struggle a lot to access the information, so to resolve this obstacle in reading and to allow the visually impaired students to fully access and participate in the curriculum with the greatest possible level of independence, a Braille transliteration system using VLSI is designed. Here Braille input is given to FPGA Virtex-4 kit via Braille keyboard. The Braille language is converted into English language by decoding logic in VHDL/Verilog and then the corresponding alphabet letter is converted into speech signal with the help of the algorithm. Speaker is used for the voice output. This project allows the visually impaired people to get literate also the person can get a conformation about what is being typed, every time that character is being pressed, this prevents the occurrence of mistakes.

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.

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