Radio Frequency Identification (RFID) technology allows for the tracking and identification of various objects and living beings without the need for contact or line-of-sight. RFID systems consist of tags, antennas, readers, and software, with tags capable of storing more information than barcodes and some having the ability to record environmental data. The technology has diverse applications, including in inventory management, authentication, contactless payments, and more.

1. Kandarp Vyas

2. RFID or Radio Frequency Identification is a technology that
enables
the tracking and/or identification of objects and living
things.
Unlike bar-code technology, RFID technology does not
require contact or line-of-sight for communication.

3. These are the Major Components
of an RFID System
Tags
Antennas
Interface
RFID
System
Readers
Software

4. RFID Tags can go on all kinds of objects and even on living
beings.
Tags come in many shapes and sizes.
Some Tags are battery powered, some are powered by radio
waves and do not require batteries.

5. RFID Tags are superior to bar codes:
* RFID Tags do not require line-of-sight.
* RFID Tags can store far more information than bar
codes.
* Some RFID Tags are writable, so information can be
updated as time goes on or as the tag travels to
different locations.
* Some RFID Tags have sensors that can record
information. For
example, a tag on a shipment of frozen foods could
record the temperatures that the foods were
exposed to.

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Very limited memory for numbers
 Very limited ability for arithmetic
computation

7. The Antenna receives the information from the Tag.
Communication between the Tag and the Antenna is wireless,
via radio waves and generally does not require line-of-sight.
In some cases, we can use existing Wi-Fi Network antennas for
the RFID System, eliminating the need to install RFID antennas.
The Tag sends its Antenna
info to the
Antenna
Tag
In some applications, the
Antenna also writes data onto
the Tag

8. The main functions of the Reader are :
o To receive information from the Antennas and convert it to a usable
format
o To energize and control the Antennas
Reader
Antenna
Tag

9. o The Reader sends information to a computer or network which houses
interface software known as Middleware.
o Information is now available to users. Depending on the RFID system,
the information could include: item’s current location, where it has
traveled, how much it has been used, environmental conditions it was
exposed to and more.
Reader Reader
Antenna
Tag

10. Tag Antenna Reader Interface
RFID Tags The Antennas The Readers The Interface
send pertinent pick-up the interpret the info, Software
info to the info from the organize it, then (Middleware)
Antennas Tags via radio send it to the formats the info
waves, then Interface Software so that it can talk
send that info to the user’s
to the Readers The Readers also computer/networ
control the k
Antennas

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 Tracking Animals
• Passports

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13.  Library
 Pharmaceutical
 Product Authentication
 Ticketing
 Waste Management
 Contactless Payments
 Smart Metering