RFID
Scanner
Technological
advances generally promise great things while also threatening to
create problems. Radio Frequency Identification (RFID) is no
exception to this general rule. An RFID system is similar in some
ways to a bar code system in that it consists of a RFID Scanner that
reads an information source. The main difference is that an RFID
scanner scans information from tags containing circuits instead of
from printed bars.
An RFID Scanner
in the room reads the tag and displays information about the suit
and accessories on a touch-screen liquid crystal display. An RFID
Scanner can pick up signals from all the chips in the sealed box,
something bar code systems can't do. In addition the cost of an RFID
Scanner is generally very low, as it uses simple well established
simple technology in simple packaging. An RFID Scanner can pick up
signals from all the chips in the sealed box, something bar code
systems can't do.
A personal RFID
Scanner could also let you reprogram tags so that other people can't
read them. Instead of rummaging through piles of paper, you could
use an RFID Scanner to retrieve the correct manuals for equipment.
If you want to compile a database of CDs, DVDs and books (handy for
an insurance inventory), you can just scan them rather than typing
in the details. If you can't find where you've left a book or disc,
you could put the RFID Scanner into search mode and carry it from
room to room until you track it down.
The RFID
Scanner reads tags on all bags at the airport selected for enhanced
screening. Even though the scanner has a high tag-detection rate, a
second RFID Scanner was installed further down on the conveyer belt
to ensure that no bag is overlooked. This second RFID Scanner is
also intended to catch any bags that were read at the first station
but were not properly diverted.
How It Works:
As the user first enters a building the RFID Scanner card on their
PDA begins to pick up signals from the nearest RFID tag. The signal
from this tag contains its location on an X, Y, and Z coordinate
system, which corresponds to an X, Y, and Z coordinate system of a
map on the PDA. The RFID Scanner card then finds its position
relative to the tag’s, and from there can find its position on the
map.
When the user
enters the building they tell the PDA the room number of their
desired location. This is done through a head set and voice
recognition software. The PDA then calculates the optimum route to
the destination. This is done through the usage of navigation
software which when given a starting location, and destination, and
a set of barriers, can deduce the optimum path of travel. This
information is them conveyed to the user in the form of directions,
from a small speaker in the head set.
As the user
moves along the path the RFID scanner is constantly tracking the
user’s progress on its map, by determining its location, from the
RFID tags. As the user’s moves out of the range of one tag, it will
move in to the range of another tag, and will continue to track the
user’s progress. This continues until the user reaches their desired
destination. Once that happens the system will enter a sleep mod
until another command is given by the user.
For example,
features of the Intelli-eye RFID Scanner: The Intelli-eye RFID
Scanner r can detect when a tag has NOT been scanned. It does this
with an in-built infra-red beam that can detect the presence of an
animal. If a tag is not read during the time the animal is detected,
an alarm will sound. Controls are provided to activate a paint
sprayer or open gates so that the animal is positively identified or
isolated. The RFID Scanner provides a bright flash indication for
each RFID scan and the alarm and paint/gate controls for non scan.
The Intelli-eye
RFID Scanner has a powerful microprocessor controlling the two-way
radio link between the scanner and the recording computer. The
Intelli-eye scanner can confirm at the scanner that each RFID tag
has been recorded. No cables are required between the scanner and
the computer. The radio link is very robust and scanners may be up
to 300 metres from the computer. The computer connects to a single
centrally located antenna that can record from up to 16 scanners in
simultaneous use.
The Intelli-eye
RFID Scanner is supplied with Intelli ScanMan the NLIS recording
software from Equinox Software. This software will run on computer
systems supplied by Equinox, Myco or Blush. The system is readily
installed by a local electrician who needs only to mount the central
antenna and provide power to each
scanner.