International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
ULTRASONIC SMART GLASS FOR VISUALLY IMPAIRED PEOPLE M.Muralitharan1, A.Anandhan2, A.Thirumalai vasan3, S.Kalaimani4 4Assistant Professor, Department of Mechatronics, Sri Manakula Vinayagar Engineering College, Puducherry, India 123 U.G. Student, Department of Mechatronics, Sri Manakula Vinayagar Engineering College, Puducherry, India
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ABSTRACT- This concept offers an innovative approach to
"Ultrasonic Glasses for Visually Impaired People" uses modern technology and user-centered design approaches to help close the gap that separates those who are visually impaired from their surroundings. This initiative aims to improve the quality of life for visually impaired people by empowering them to manage their daily lives with greater freedom and dignity through increased awareness, accessibility, and empowerment.
improve navigation for people with visual impairments by integrating glasses with ultrasonic technology. The Node MCU module, a flexible microcontroller, is used by the system to provide real-time data processing and communication. The smart glass identifies impediments around the user by incorporating ultrasonic sensors into its structure. It then gives the user intelligent feedback in the form of tactile or audible indications. The main goal of this project is to provide an efficient and affordable assistive technology that increases the mobility and freedom of people who are blind or visually impaired. The goal of the smart glass prototype is to increase obstacle detection accuracy while maintaining user-friendliness through the smooth integration of hardware elements and software algorithms. Key Words: NodeMCU module, real-time data processing, Ultrasonic sensors, Tactile and audible indications…
1. INTRODUCTION An inventive idea called "Ultrasonic Glasses for Visually Impaired People" aims to give those who are visually impaired more freedom and safety when navigating their environment. In order to improve users' mobility and confidence, this project aims to give users real-time environmental awareness and help through the integration of innovative technologies into a wearable gadget.
Figure -1: A Step
2. WORKING Using a buzzer and NodeMCU, the "Ultrasonic Glasses for Visually Impaired People" project helps users navigate their surroundings with an easy-to-understand but effective concept. The primary components of the system and how these are connected are shown in the block diagram shown in Figure. 2.
The project's main component is the strategic insertion of ultrasonic sensors within a pair of glasses. These sensors keep a constant eye on the user's surroundings, picking up items and obstacles in their route (like stairs and steps as illustrated in Figure 1). The technology uses sophisticated signal processing algorithms to determine the distance to identified obstacles and gives the user instant feedback.
Ultrasonic Sensor Detection: The glasses are equipped with ultrasonic sensors, typically mounted on the frame. These sensors continuously emit ultrasonic waves and measure the time it takes for the waves to bounce back after hitting obstacles in the user's path. This data is crucial for detecting obstacles and determining their distance from the user.
Depending on the user's needs and preferences, the ultrasonic glasses use either visual clues, tactile vibrations, or auditory warnings as its feedback systems. By informing the user of potential difficulties nearby, these alerts allow the user to securely and confidently move past barriers. By offering contextual information and facilitating seamless interaction with the surrounding environment, these elements further improve the user experience.
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NodeMCU Data Processing: The ultrasonic sensor sends distance data to the NodeMCU microcontroller, which processes this information in real-time. The NodeMCU calculates the distance to detected obstacles based on the time delay of the ultrasonic waves.
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