Design and Application of Radio Frequency Identification Systems

[kittustar]

Design and Application of Radio Frequency
Identification Systems

Abstract

The recent world, development of effective technologies for linking the object
wireless information is being prompted in various fields. Radio frequency identification
(RFID) is the latest technology for automatic identification which allows the transmission
of a unique serial number wirelessly. The purpose of this paper is to review RFID systems
and its various components infrastructure. The components and features are still under
research and being integrated in existing systems to create a marketable and potential new
system.

Introduction

RFID (Radio Frequency Identification) is an automatic identification method. The great appeal of
RFID technology allows storing and reading the data without requiring either contact or a line of sight between the tag and reader. RFID consists of three basic component such as transponder (tag),
interrogator (reader) and antenna. In a typical communication sequence, RFID system performs a number of functionalities between reader and tag. RFID reader emits a continuous RF carrier sine
wave. When a tag enters the RF field of the reader, the tag receives energy from the field. Further,
receiving sufficient energy, it begins to modulate the carrier signal to the data storage on the tag. The
modulating carrier signal is resonated from the tag to the reader.

RFID Standard

RFID systems do not support lack of standards. These standards are normally describes the physical
and the page link layers, covering aspects such as the air interface, anti-collision mechanisms,
communication protocols and security functions. Several RFID standards exist and their applications
are under debate within the RFID development community.

RFID Privacy, Legislation and Security

According to consumer scenarios, it has been updated the performance ability to use RFID to track a
customer's movement around the global market. This concept is not new for modern consumers.
Nowadays a number of customers are familiar with closed circuit television (CCTV) tracking.
However, RFID tracking logs are significantly smaller than CCTV output and are machineprocessable.
According to S. J. Engberg et al. (2004) approaches, as an invasion of privacy, many
people are accepted RFID tracking technology. Furthermore, there have more advantage when
shopkeeper encoded the records that are traceable to identifiable customers.