RFID
Reader
RFID Reader is
a part of RFID hardware, are used to identify the location of assets
in virtually real time. Readers can be as simple as a loop around a
doorway to record tagged items arriving at or leaving the premises.
When attached to an asset, a tag, upon motion or upon tampering,
transmits at predefined intervals a unique identification code to a
network of transceivers, or readers.
This RFID
Reader passes the message transmissions to the server software for
decoding. The asset's movement is then graphically displayed in
virtually real time and stored. An RFID Reader, usually connected to
a Personal Computer, serves the same purpose as a barcode scanner.
It can also be battery-powered to allow mobile transactions with
RFID tags. The RFID Reader handles the communication between the
Information System and the RFID tag.
Using an RFID
Reader, the electronic identity (code in the form of several bits of
data) can be read wirelessly using radio waves. This is where it
differs from other e-tagging technologies such as barcode scanning,
which uses optical recognition. Because it uses radio waves, no line
of sight is required and RFID tags embedded inside an object can be
sensed. Further, an RFID Reader can read multiple RFID tags
simultaneously, which is not possible using barcodes. An RFID Reader
at the gate of a warehouse, for example, can immediately sense all
the RFID-tagged objects within a container as soon as the container
passes by the gate.
An RFID Reader,
which can be handheld or fixed in place, transmits a low-power radio
signal through its antenna. The radio signal powers a chip in the
tag that causes it to connect and exchange data with the RFID
Reader. The RFID Reader can then send the data on to the controlling
computer, which matches the data against its database to figure out
what the RFID tag says. The computer can use that data just like any
other data source: It can make an entry in a database or cause an
action to happen.
RFID Reader
(also called an interrogator): The reader communicates with the RFID
tag via radio waves and passes the information in digital form to a
computer system. The RFID Reader is a powerful tool for obtaining
information emitted by RFID tags. RFID tags are placed inside, or
on, a variety of items depending on the system's purpose. The tags
contain information; the amount and complexity varies depending on
the type of tag. Readers or scanners are able to retrieve the tag's
information, and change it if capable. RFID solutions are used by
different industries, and for variant
purposes.
The
sophistication and complexity of a RFID system depends on the
purpose. A simple system may be a security tag. The transceiver, and
decoder, or reader, emits electromagnetic information, at the
store's front door, for example. When the tag passes into the zone,
it is activated. Its information is received, and then the reader
sends this data to a central computer, to for example, sound the
antitheft alarm. RFID security tags are helping businesses
tremendously.
The RFID Reader
Can Be Located Anywhere: The uses and benefits of the entire RFID
system depend on the individual components. The tag is designed to
fit items of any size or shape. When the tag passes in front of the
antenna, it is activated. Antennas and transceivers can be one unit,
called an RFID Reader. The reader can decode the data inside of the
tag's silicon microchip. The more expensive chips have a 1MB memory
capacity. This concept allows real time tracking of the tags,
excellent decoding of their data, and the ability to record and
analyze the results.
Radio frequency
identification systems vary in sophistication and cost enormously.
An amusement park can outfit their patrons with id wristbands
emitting the wearer's age, so they can track the demographic of each
ride's customers. More complex applications are used in hospitals,
correctional facilities, and by governments for identification and
security purposes using a nontransferable wristband. When the tags
are more sophisticated and packaged with the antenna, the readers
can not only receive the chip's data, but can change, or update it
as well. Patient or inmate activity is monitored and recorded in
real-time, with precision and ease. RFID is providing powerful
solutions for identification purposes
worldwide.
Low Cost RFID
Reader: Combining simple radio frequency tags and a low cost RFID
reader, many businesses and organizations can reap the benefits of
radio frequency identification. The advantages of RFID are numerous,
and its applications vary.. The primary concept is communicating
data by radio waves, allowing identification using non-line-of-sight
transmission. There are impressive RFID solutions for numerous
industries.
Radio frequency
identification systems vary in complexity and design. Cost is the
primary consideration when choosing the system components. A basic
system involves three items, the RF tag with preprogrammed
information called a transponder, a transceiver, and antennae to
facilitate communication between the two. Tags can be designed to
fit any item, from an identification wristband, to a retail store
security tag. Businesses and organizations use RFID to identify,
monitor, and track items of their choice.
A Low Cost RFID
Reader Saves Money: The company or organizations implementing RFID
technology can custom develop the entire system for their needs.
When combined with computer software, the capacities of RFID are
virtually limitless. Large organizations, including governments,
hospitals, prisons, and many businesses, benefit from RFID
technology.
Innovative
applications of RFID help countless industries. Using RFID is
similar in purpose to bar code identification, but does not require
optical contact. Unlike bar codes, which represent a limited number
of numbers, an RF tag can be programmed with more information. A
simple tag may be passive and emit an ID number when activated by a
transceiver's reading, while a complicated active tag can contain up
to 1MB of memory. A low cost RFID Reader can easily read and
transmit a simple tag's information. RIFD systems are expensive, but
low- cost components are available.
Radio frequency
identification allows organizations and companies to track any item
and record its progression. Transceivers can be set in numerous
locations to respond to a tag. When a transceiver reads a tag's
information, it sends it to a computer or database to be recorded.
This information can then be analyzed or interpreted for many
reasons. Radio frequency identification helps industries worldwide
identify and track people, items, information and data, with
precision and ease.