Radio frequency identification
refers to small electronic devices that consist of a small chip and an antenna.
The chip carries can carry about 2,000 bytes of data. The radio frequency uses
a wireless non-contact system that uses radio frequency electromagnetic fields
to transfer data. The device used for radio frequency is a unique identifier
for an object and must be scanned to retrieve identifying information. It does
not need to be positioned relative to the scanner.
Radio frequency tags are
intelligent barcodes that can talk to a networked system to track every product
that you put in your shopping cart. Instead of waiting on lines at grocery
stores, these radio frequency tags will communicate with an electronic reader
that will detect every item in the cart and ring each up almost instantly. The
reader is connected to a large network that will send information on your
products to the retailer and product manufactures. The bank will be notified
and the amount of the bill will be deducted from your account. It is also used
in many other places including: stores, warehouses, pharmacies, worksite, and
transportation systems for fare collection (subway passes and highway toll
collection). It has also been used for health care, managing assets, tracking
patients, and providing data for electronic medical records systems. Radio
frequency had made it much easier for manufactures to keep their systems
organized.
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