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What is RFID?
RFID is the abbreviation of the English term Radio-Frequency Identification. It is an automatic identification method that is based on storing and retrieving data without touch, remotely, by radio waves, using devices called RFID tags and RFID transponders. The technology requires the cooperation of an RFID reader with the RFID tag.

A RFID tag is a small or very small object that can be applied or embedded in principle in any product or object, but also in the body of animals or people, for the purpose of identification and tracking, using radio waves. Some tags can be read from a few centimeters to many meters away, even well over 50 m, and the tag can be out of sight of the RFID reader.

Most RFID tags contain at least two parts:
  • An integrated circuit (chip) for storing and processing information, modulating and demodulating a radio signal (RF), and other specialized functions;
  • An antenna for receiving and transmitting radio signals.
Areas of use
Today RFID technology is already used in many fields, namely:

  • In the supply chain of enterprises, to improve inventory efficiency
  • To track products during manufacturing
  • For product management
  • Time measurement in athletic races
  • Passport control
  • Application of road taxes on certain highways
  • Product tracking (the cows of a herd, the books of a library, the trans-containers of a ship)
  • Track locomotives and wagons on railways
  • Authentication of people who want to enter special areas (provided they have RFID tags implanted under their skin)
  • Guarding and inventorying in museums
Components of an RFID system
How does an RFID system work?
RFID systems are generally composed of three components:

  • reader;
  • tag (radio frequency transponder);
  • data processing system, which can be based on a computer or different microcontrollers.

RFID systems use radio frequency transmission to identify, catalog or locate items, which can primarily be objects, but also people or animals. The reader contains electronic components that release and receive a signal to and from the proximity tag, a microprocessor that checks and decodes the received data and a memory that records the resulting data, which will later be transmitted further if necessary. To enable the reception and transmission of data from the tag, the reader has an antenna connected. The antenna can be integrated into the reader housing or it can be separated, located away from the rest of the electronics. As with most radio frequency applications, to obtain good performance the diameter of the antenna must be relatively large!

Advantages of RFID tags
(compared to barcode labels):
Proximity tags do not require direct contact to work
Proximity tags are robust and maintenance-free
The speed of reading tags is much higher
Some types of tags can be rewritten
Through reuse, the price of rewritable tags decreases compared to that of barcode labels
Tags can be placed anywhere, some can even be integrated into objects
It does not require good environmental conditions, tag reading can be done through: dust, steam, dirt, mud, water, etc.
Reading can also be done through layers of non-metallic materials (paint, cardboard, plastic, wood)
Thanks to built-in verification systems, reading a proximity tag is error-free
Passive tags have a practically unlimited lifetime
Tags are almost impossible to fake
Thanks to the internal memory, the tags can store large amounts of data.
RFID readers

RFID Reader ZEBRA RFD8500

Specifications:
  • Weight:
    435 grame
  • Standard support:
    EPC Class 1 Gen 2; EPC Gen2 V2
  • Bluetooth®:
    Bluetooth® 2.1

RFID Reader ZEBRA RFD2000

Specifications:
  • Battery:
    Li-Ion 3160 mAh
  • Standard support:
    EPC Class 1 Gen 2; EPC Gen2 V2
  • Bluetooth®:
    Bluetooth® 2.1

FIX RFID Reader ZEBRA FC7500

Specifications:
  • Processor:
    Texas Instruments AM3505 (600 Mhz)
  • Power supply:
    POE, POE+ or +24V DC
  • Bluetooth®:
    Bluetooth® 2.1
RFID Antennas

RFID antenna ZEBRA AN480

Specifications:
  • Polarization:
    Right-hand circular
  • Connector:
    SMA female
  • Weight:
    1.6 lbs. / 0.75kg
  • 3bB Beam Width:
    68° in both planes

RFID antenna ZEBRA AN620

Specifications:
  • Polarization:
    Left-hand circular
  • Connector:
    N-Type Female
  • Weight:
    2.2 lbs. / 1.0kg
  • 3bB Beam Width:
    75° in horizontal plane

RFID antenna ZEBRA AN720

Specifications:
  • Polarization:
    Right-hand circular
  • Connector:
    N-Type Female
  • Weight:
    0.8 lbs. / 0.37 kg
  • 3bB Beam Width:
    100° in both planes
RFID Printers

RFID printer ZEBRA ZT421

Specifications:
  • Printer type:
    Industrial for labels
  • Interface:
    USB 2.0, RS-232 (serial), 10/100 Ethernet, , 2 x USB Host, Bluetooth
  • Memory:
    256 MB RAM / 512 MB Flash
  • Display:
    LCD, color

RFID printer ZEBRA ZT610

Specifications:
  • Printer type:
    Industrial for labels
  • Interface:
    USB, serial, Ethernet (10/100/1000 Mbit), Bluetooth
  • Memory:
    1 GB RAM / 2 GB Flash.
  • Display:
    LCD, color
RFID Tags

Zebra PolyPro RFID label roll - Boingtech BT781

Specifications:
  • Consumable type:
    RFID labels
  • Width:
    44 mm
  • Length:
    19 mm
  • Adhesive:
    Permanent

RFID Tags Omni-ID EXO600

Specifications:
  • Construction:
    ABS Rigid Plastic
  • Size (mm):
    80 x 15 x 12.5
  • Size (in):
    3.15 x 0.59 x 0.48
  • Weight (g):
    12.5

RFID Tags Omni-ID EXO750

Specifications:
  • Construction:
    ABS
  • Size (mm):
    51 x 48 x 12.6 (+/- 1.0)
  • Size (in):
    2.01 x 1.9 x 0.50 (+/- 0.04)
  • Weight (g):
    25.6
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