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seminar on ultrasonic and voice based walking stick for the blind
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code for Arduino based ultrasonic smart blind stick
Post: #2
Introduction
The WHO (World Health Organization) survey in 2011 tells us that in the world around 1% of the human population has visual impairments and among them 10% are totally blind. The main problem with blind people is mobility. This work proposes a tool for people with visual impairment that will provide them with navigation. The long white cane is a traditional mobility tool used to detect obstacles in the path of a blind person. We are modifying this cane with some electronic components and sensors so that the cane can become intelligent cane. In this project we are using ultrasonic sensors, water sensor, buzzer, Bluetooth module. The ultrasonic sensor is used to detect any obstacles. It has detection distance of 2cm-450cm so whenever there is any obstacle in this range will alert the person. The water sensor is used to detect if there is water on the road. So the person can be aware of it. The Bluetooth module will help the person to find the stick standing away. If the person wants to find him, he / she will press a button on the remote control and the buzzer will ring and the person can get the idea where the stick is placed.
[Image: 2-c16d0c6a73.jpg]

The Smart Stick acts as a basic platform for the next More information
Difficulty to be safer. It is effective and allow. He drives To obtain good results in the detection of obstacles The user in a range of four meters, detecting stairs and
Water wells. This system offers a low cost, reliable, portable, low power Robust consumption and solution for navigation With an obvious short response time. Although the system is Hard-wired with sensors and other components, it is light in Weight. Other aspects of this system can be improved Wireless connectivity between system components, Thus, by increasing the range of the ultrasonic sensor and Implementation of technology to determine the speed of Approaching obstacles. While developing a Empowering solution, visually impaired and blind In all the developing countries they were at the top of our priorities.

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