Low Frequency RFID Based Object Identification System f or Blind People: RFASSIST

Radio Frequency Identification (RFID) technology has applications from retail sector tohealthsector.This paper presents a low frequency RFID based Object Identification System (RFASSIST) that has been produced to help blind people toidentify various objects . RFID appears as an effective solution to provide object identification. The paper alsogives an overview of the RFID technology. RFASSIST uses an8-bit PIC Microcontroller to interface RFID Reader Module. RFID reader tracks an object carrying passive RFID tag in an indoor environment.Microcontroller processes signals received from RFID reader. To provide assistance to the blind, the framework combines RFID based object identification with audio messages. It also displays the objects name on LCD. This project stores the date and time of identification of object on PC using RS232 serial communicatio n. The data was successfully stored in computers memory which can be later usedas a databasein certain applications. During the course of the project indoor experiments have been conducted. This systemsuccessfullyidentified various objects for application domains such as home care, library management, toll gate etc. for blind.

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