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RFID Technology - Some Primary Information
RFID or Radio Frequency Identification, is the new technology talked about for product identification and data storage that can be used the place barcodes fail. It is based mostly on the identical concept as barcode except that the method of encoding data is completely different since barcodes require a line of sight optical scan. As an automatic identification technology it reads encoded data with the aid of radio frequency waves. Its biggest advantage is that it does not essentially need a tag or label to be visible to read the data stored.
RFID tags fall into classes, active or passive. Active tags have an inner battery with a read and write option, allowing modification of data. The memory dimension of the tag is variable with some tags having memory house of up to 1 MB. Passive RFID tags wouldn't have an exterior energy source and instead use the ability generated from the reader. They are subsequently lighter, cheaper, and have an unlimited lifetime of operation, unlike active tags have a ten-yr span. Passive RFID tags are programmed with a particular set of data that can not be modified and being read-only, they operate as a license plate in a database.
Passive RFID tags have a low-power integrated circuit hooked up to an antenna and a protective packaging is used to enclose it depending on the application it goes to be used for. The IC has an on-board memory that stores data. The IC makes use of the antenna to obtain and transmit information to an exterior reader, generally referred to as an interrogator. Tags are also called inlays and transponders. In technical terms an inlay is solely a tag on a flexible substrate ready for conversion into a smart label. The smart label can prolong the essential functioning of RFID by combining barcode technology and human readable information. Smart labels embrace an adhesive label embedded with an RFID tag inlay. Thus they provide the benefits of read range and the unsupervised capability of tags, with the flexibility and comfort of on-demand label printing.
RFID systems have variable frequency ranges, and the frequency level decides their use for applications. Their biggest asset is their operation without a line-of-sight and without contact. Thus they are often read by way of fog and snow, heat and mud, and different environmentally robust conditions where barcodes or any other optical identification systems would fail. Their high reading speeds are one other advantage despite the fact that RFID technology is more expensive.
At present virtually every RFID implementation is totally different due to the performance necessities and price factors besides the signal transmission restrictions. They're used where barcodes prove inadequate but that does not men that RFID technology will replace barcodes. The market is big enough for each to continue side by side.
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