Raybright is system
integrator focused on providing comprehensive solution in automatic
data collection technologies such as Barcode, RFID, Smart card and
Biometrics
Radio Frequency Identification (RFID) provides a very important platform
for the identification of items, data capture and item management.
It embraces a range of data carrier technologies and associated
products that facilitate the exchange of data between a carrier
and a host information management system by means of a radio frequency
link.
The AIDC (Automatic Identification Data Capture) industry is moving
rapidly towards the use of RFID in a number of high-value and high-volume
market segments.
The primary benefit of RFID tags over barcodes is their ease of
use and reliability. RFID tags can be read or written at distances
up to several feet, while in motion, regardless of dirt or smudges,
and through intervening objects.
While in the case of a bar code the data is carried (encoded) in
the symbol’s bars and spaces and read by means of a directional
light beam the data in the RFID data carrier is contained within
the a suitable electronically-accessible memory device and read
by a far less directional electromagnetic source.
Some RFID devices are also characterised by a write capability,
also serviced by the interacting field. Each has attributes that
distinguish their advantages in particular applications.
Perhaps most significant is the fact that many RFID tags can be
read at once automatically, while barcodes have to be scanned manually,
one by one.
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RFID Components
An RFID tag consists of a microchip attached to an antenna. RFID tags
are developed using a frequency according to the needs of the system
including read range and the environment in which the tag will be
read. Tags are either active (integrating a battery) or passive (having
no battery). Passive tags derive the power to operate from the field
generated by the reader.
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.
An RFID antenna connected to the RFID reader, can be of various
size and structure, depending on the communication distance required
for a given system’s performance. The antenna activates the
RFID tag and transfers data by emitting wireless pulses.
An RFID station, made up of an RFID reader and an antenna. It can
read information stored into the RFID tag and also update this RFID
tag with new information. It generally holds application software
specifically designed for the required task. RFID stations may be
mounted in arrays around transfer points in industrial processes
to automatically track assets as they are moving through the process.
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