On time audio alert automated intelligent system for visually impaired people

<p align="justify">India is the home of the world’s blind population. The country has around 12 million individuals with visual impairment against a global total of 39 million according to a report published by the National Programme for Control of Blindness. Visually impaired people cannot live independently. They have to depend on others for their daily activities. The major problem occurs when blind people walk on the road, they cannot detect any obstacle which puts them at risk. sometimes it causes major injuries and accidents. With the proposed system, visually impaired people can walk on the road independently. A device with internet of things (IoT) technology where smart glass is embedded with an ultrasonic sensor, sunglasses, Raspberry Pi, voice module ISD1820, and Bluetooth. This device alerts the user with audio guidance. When people walk in front of an obstacle, the device detects the obstacle and tells the user at what distance the obstacle is there. They can walk on the road comfortably and fearlessly. It gives audio alerts about obstacles to the user. The key features are it is easy to wear, lightweight, and cost-effective. Wearing smart glasses, they can walk on the road confidently like a normal human being without any guilt.</p>