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1.1108 Campus Solutions using RFID Technology

Project Abstract:

Introduction:

Radio frequency identification (RFID) describes a set of technologies that use radio frequencies (RF) to communicate data (a central component of which is an identity - usually a unique number). Basically, an RFID system consists of a tag, which includes the identity attached to an object and a reader that can query the tag to find out what that identity is. The technology has been advancing over the past several years and the application space has been broadening. RFID has been used for a range of activities from tracking livestock to automating supply chains to cashless payment. As a part of the curriculum, we undertook a project which broadly explores the concept of RFID.

Project Objectives:

The project covers the technical aspects of the technology, its applications and its implications for educational institutions. Following are the main objectives:

Hardware:

1.      To build the circuit of the RFID Reader/Writer using a microcontroller (89C668) and a suitable RF IC (Philips MFRC 500).

2.      To design a printed RF antenna and its suitable matching circuitry.

3.      To build a suitable interfacing circuit to connect the reader to the computer for display purposes and user interface.

Software:

1.      Development of the device drivers for the hardware reader/writer.

2.      Development of the user interfaces to demonstrate practical applications [Access Control (Library System/Ticketing) / Cashless Payment (Canteen System)].

3.      Communication between the hardware reader/writer and the tag strictly adhering to the ISO14443A standards and the communication protocols of the RF IC.

Research and Design Methodology:

1        A detailed study was undertaken for a comprehensive understanding of RF communication and its application in enabling RFID and NFC (Near Field Communication) standards and of the various components involved in the RFID system.

2        The development setup included the 89C668 microcontroller and the Philips MFRC500 (13.56 MHz). Software had to be written such that the PC acted as a large LCD display which displays information from the RC500 or 89C668 PCB through the serial port.

3        Visual Basic 6.0 was decided to be the most suitable amongst programming languages like the lower level assembly language and higher level languages, because of the following reasons:

        1.   Human readability.
        2.   Faster development time.
          3.   MS Comm Control 6.0 component for serial communication.