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Specifications
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| System
hardware |
Support protocol |
ISO 15693 |
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RF frequency |
13.56 MHz |
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RF data rate |
6.62
kbps fir ISO-15693 |
|
Baud rate |
9600Kbps ~ 115,200Kbps |
|
Power consumption |
5V @ 150mA |
|
Operating distance |
10 cm |
|
Interface |
RS-232 or USB |
|
Operating temperature |
0℃ ~ 60℃ |
|
Operation humidity |
10% ~ 85% RH |
|
Tag compatibility |
TI , ST , Philips , Tag-it , HF-EPC |
|
Driver support |
Windows XP , Windows XPe and Windows
CE 5.0 |
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Introductions to RFID
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| ● Radio Frequency Identification (RFID)
is one member in the family of Automatic Identification
and Data Capture ( AIDC ) technologies and is a fast and
reliable means of identifying just about any material
object. Primarily, the two main components involved in
a Radio Frequency Identification system are the Transponder
(tags that are attached to the object) and the Interrogator
(RFID reader). Communication between the RFID reader and
tags occurs wirelessly and generally does not require
a line of sight between the devices.An RFID transponder,
considered as a next generation barcode, is a miniscule
microchip that is attached to an antenna. They come in
a wide variety of sizes, shapes, and forms and can be
read through most materials with the exception of conductive
materials like water and metal, but with modifications
and positioning even these can be overcome.An RFID reader
typically contains a module (transmitter and receiver),
a control unit and a coupling element (antenna). The reader
has three main functions: energizing, demodulating and
decoding. In addition, readers can be fitted with an additional
interface that converts the radio waves returned from
the RFID tag into a form that can then be passed on to
another system, like a computer or any programmable logic
controller. Anti-Collision algorithms permit the simultaneous
reading of large numbers of tagged objects, while ensuring
that each tag is read only once. |
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| ● Because RFID systems generate and
radiate electromagnetic waves, they are justifiably classified
as radio systems. The function of other radio services
must under no circumstances be disrupted or impaired by
the operation of RFID systems. It is particularly important
to ensure that RFID systems do not interfere with nearby
radio and television, mobile radio services (police, security
services, industry), marine and aeronautical radio services
and mobile telephones. The need to exercise care with
regard to other radio services significantly restricts
the range of suitable operating frequencies available
to an RFID system. For this reason, it is usually only
possible to use frequency ranges that have been reserved
specifically for industrial, scientific or medical applications
or for short range devices. And currently widely used
spectrums of common RFID systems are classified into three
categories, Low Frequency (LF), High Frequency (HF), and
Ultra High Frequency (UHF). |
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RFID Applications
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| ● The profitable RFID applications in
use today will continue to drive the market, and some
of these are: |
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| ● Post 9/11 has seen increasing demand
for security applications such as homeland security, employee
identification, gaining entrance and controlling access
of vehicles to buildings, gated communities, corporate
campuses and airports. Some other current uses include
waste management, automating parking and managing traffic,
the dispensing of all types of products, providing ski
lift access, the tracking of library books and more. Major
growth in the future will come from real-time location
systems, asset management, baggage handling, and cash
less payment systems. Business segments such as supply
chain management, logistics, warehousing and manufacturing
will greatly benefit from the use of RFID technology. |
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