05-12-2012, 01:07 PM
RFID Technology
RFID.pptx (Size: 842 KB / Downloads: 28)
RFID – What is it?
Radio Frequency Identification.
Technology involves:
1) Identification of physical objects.
2) Automatic Data Accessing.
Data mounted on product in encoded digital form.
Rfid evolution from past decades till now….
1940-1950—Its invested in 1948,radar define and major world war2 development.
1950-1960—laboratory experiments , explorations technology.
1960-1970—early field trails , development of the theory of RFID.
1970-1980—Explosion of rfid development, testing of rfid accelerate.
1980-1990—mainstream of rfid communication applications.
1990-2000—widely deployed and standardise.
2000-2010……onwards till now—innovative applications , involved in personal services and became part of our life now.
Components of RFID
TAGS—Attached with an object ,unique identification.
Antenna—Tag detector , creates electromagnetic
field.
Reader—Receiver of tag information , manipulator.
Communication infrastructure—Enable reader/RFID
to work through IT infrastructure.
Application software—user database/application/ interface.
Tag frequencies
Low frequency tags: It operates at less than 135khz .
Are appropriate for short range uses .
High frequency tags: It is characterised at 13.56mhz.
Used in smart cards,as mass transit card.
Ultra high frequency tags: operates at 900 mhz.
More sensitive to environmental factors,like water which absorbs the tag energy,and blocks its ability to communicate.
Points to note about RFID
RFID benefits are due to automation and optimization.
RFID is not a plug & play technology.
“One frequency fits all” is a myth.
Technology is evolving but physics has limitations.
Management of RFID infrastructure and data has been underestimated.
CONCLUsION
RFID tags will soon be tracking millions of consumer products worldwide .
The days of barcode are numbered.
This technology can completely replace barcodes.
The automotive industry makes use of small RFID tags that offer a high level of security at low cost
A lot of developments are taking place in RFID technology that will change the course of the industry, particularly in the supply chain area.