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RFID Technology - Some Primary Facts
RFID or Radio Frequency Identification, is the new technology talked about for product identification and data storage that can be used where barcodes fail. It's primarily based on the identical idea as barcode except that the strategy of encoding data is totally different since barcodes require a line of sight optical scan. As an automated identification technology it reads encoded data with the aid of radio frequency waves. Its biggest advantage is that it does not necessarily need a tag or label to be visible to read the data stored.
RFID tags fall into categories, active or passive. Active tags have an internal battery with a read and write option, permitting modification of data. The memory dimension of the tag is variable with some tags having memory space of as much as 1 MB. Passive RFID tags do not have an exterior power supply and instead use the power generated from the reader. They're therefore lighter, cheaper, and have an unlimited lifetime of operation, unlike active tags have a ten-year span. Passive RFID tags are programmed with a special 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-energy integrated circuit connected to an antenna and a protective packaging is used to enclose it depending on the application it goes for use for. The IC has an on-board memory that stores data. The IC makes use of the antenna to receive and transmit information to an external reader, typically referred to as an interrogator. Tags are additionally called inlays and transponders. In technical phrases an inlay is simply a tag on a versatile substrate ready for conversion into a smart label. The smart label can prolong the fundamental 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 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 dirt, and different environmentally robust conditions the place barcodes or any other optical identification systems would fail. Their high reading speeds are another advantage regardless that RFID technology is more expensive.
At present nearly each RFID implementation is different as a result of performance necessities and price factors besides the signal transmission restrictions. They are used the place barcodes prove inadequate however that doesn't males that RFID technology will change barcodes. The market is big enough for both to proceed side by side.
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