Tezislər / Theses

 
The electronic long cane (ELC):
 
ELC is a development of the traditional 
cane in order to provide an accurate detection of the objects that are around 
the user. A small grip of the cane consists of an embedded electronic circuit 
that includes an ultrasonic sensor for detection process, micro-motor 
actuator as the feedback interface, and a 9 V battery as a power supplier. 
This grip is able to detect the obstacles above the waistline of the blind 
person. A tactile feedback through a vibration will be produced as warning to 

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THE 3
rd
 INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS 
dedicated to the 99
th
anniversary of the National Leader of Azerbaijan Heydar Aliyev
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a close obstacle. The frequency of the feedback will be increased as the blind 
person gets closer to the obstacle.
 
Proposed work 
We created one of the simple smart canes for our experiment. It 
incorporates the following components, which includes an ultrasonic sensor 
to detect obstacle in front of the visually impaired person, a buzzer for alerting 
person through speech output. We were able to define duration using 
Arduino software which read the echoPin and returned the travel time of the 
sound wave in microseconds. After that, the distance between the object and 
the ultrasonic sensor could be calculated by applying distance formula which 
is duration multiply by speed of the sound divided by two. When the distance 
is less than 15 cm, the buzzer will make sound and led will be on. 
It should be noted at this stage that this work has been thoroughly carried 
out in order to design and implement an articulate walking bolt for the blind. 
The Smart Stick acts as a versatile interface for easy and comfortable 
internal and external mobility for visually impaired people in the next phase 
of more supportive apps. It's safe and affordable. It offers low cost, reliable, 
lightweight, low power and efficient navigation with fast, quick response times. 
Wireless connectivity between components of the device will enhance the 
additional features of this instrument and increase the range of ultrasound 
sensors and incorporate technologies to measure the intensity of obstacles 
approaching. With this approach, our targets in all of the developing countries 
were particularly addressed towards visually impaired and blind people. In this 
analysis the machine built can only sense obstacles and humidity.
References
1. [Akshay Pillewan, Satyam Bhivgade, Vicky Burde, Lucky Sarjare, Shabaz Khan, Manish 
Nagrare, 
Smart Blind Stick, 2021
] 
2. [Dr.Sreeja Mole S.S., C.H.Ramya, L.Anusha, K.Soumya and K.Purnachander, 
Sensor 
Based Assistive Device for Visually Impaired People
] 
3. [Izaz Khan, Shah Khusro, Irfan Ullah, 
Technology-assisted white cane: evaluation and future 
directions, 2018
] 
4. [Wafa Elmannai and Khaled Elleithy, 
Sensor-Based Assistive Devices for Visually-Impaired 
People: Current Status, Challenges, and Future Directions, 2017
] 

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