Radio Frequency Identification (RFID)

RFID is not a new technology. It has been widely used in warehouse and supermarket for prevent theft. Not until recently, many libraries begin to research the possibility of using it to replace traditional barcode systems for ciculation.

So what is RFID? Generally, it works in this way: there are microchips to tag library materials and the library card, enabling patrons to check out items by walking through a self-service station equipped with an antenna that emits low-frequency radio waves. When an RF tag (transponder) passes through the electromagnetic zone, a reader (antenna + transceiver) decodes the data encoded in the tag's integrated circuit, passing it to a computer that automatically links data from the physical item(s) to the patron record that corresponds to the library card. Line-of-sight is not required for this noncontact system. RFID technology may eventually replace the barcode and optical technology in library circulation systems. Tags are available in various shapes and sizes for use in a wide range of applications, with read/write capability for interactive applications. (from ODLIS)

Richard W. Boss's article "RFID Technology for Libraries" summerized some advantages and disadvantages of implementing this technology in libraries. The advantages include rapid charging/discharging, simplified patron self-charging/discharging, high reliability, high-speed inventorying, automated materials handling, long tag life, etc. The disadvantages include high cost, vulnerability to compromise, removal of exposed tags, exit sensor problems, perceived invasion of patron privacy, etc. If you are interested, please read the entire article.

Tagging Books to Prevent Theft by Kendra Mayfield

RFID in Libraries - Introduction to the Issues by Mats G. Lindquist

Choosing Your RFID Library Solution by VTLS

Personal Privacy and Use of RFID Technology in Libraries by Vinod Chachra et al.

RFID Poses No Problem for Patron Privacy by David Dorman

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