Voice Based Navigation System for Visually Impaired People Using RFID Tag

  • A. ReshmaEmail author
  • G. M. Rajathi
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 26)


Designing an navigation system for visually impaired and blind people is one of the technical challenges for the modern society with increased reliability and service motto. This paper provides a voice based navigation system for visually impaired people in hospital environment. The ultrasonic sensor detect the obstacles around the visually impaired person in the range of 2 cm to 500 cm in front, left and right direction. Also this navigation assistant system minimizes the dependency of others to locate the exact place in the hospital. This project utilizes a RFID reader and ultrasonic sensor which are interfaced with Raspberry Pi3. RFID tags will be placed in different locations of the hospital. The location of the hospital will be stored in RFID tag using its unique identification number. The text is converted into audio signal and heared with headphone. The whole system with the sensors facilitates an obstacle avoidance system and the location identification in a hospital for visually impaired persons. A hardware setup is developed to demonstrate the working.


Raspberrypi3 RFID reader RFID tag Ultrasonic sensor 


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Electronics and Communication EngineeringSri Ramakrishna Engineering CollegeCoimbatoreIndia

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