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RFID or Radio Frequency Identification, is the new technology talked about for product identification and data storage that can be utilized the place barcodes fail. It’s based mostly on the same idea as barcode besides that the tactic of encoding data is totally 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 inside battery with a read and write option, permitting modification of data. The memory measurement of the tag is variable with some tags having memory area of up to 1 MB. Passive RFID tags shouldn’t have an exterior energy source and instead use the power generated from the reader. They are therefore 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 cannot be changed 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 surround 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, usually referred to as an interrogator. Tags are also called inlays and transponders. In technical phrases an inlay is just a tag on a flexible substrate ready for conversion right into a smart label. The smart label can lengthen the essential functioning of RFID by combining barcode technology and human readable information. Smart labels embody 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 convenience 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 other environmentally powerful conditions where barcodes or another optical identification systems would fail. Their high reading speeds are another advantage even though RFID technology is more expensive.

At current nearly each RFID implementation is different as a result of performance requirements and cost factors besides the signal transmission restrictions. They’re used the place barcodes prove inadequate however that does not males that RFID technology will exchange barcodes. The market is big enough for each to proceed side by side.

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