RFID or Radio Frequency Identification, is the new technology talked about for product identification and data storage that can be utilized where barcodes fail. It’s based mostly on the same concept as barcode except that the tactic 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 doesn’t necessarily want a tag or label to be visible to read the data stored.
RFID tags fall into two categories, active or passive. Active tags have an inside battery with a read and write option, allowing modification of data. The memory size of the tag is variable with some tags having memory house of as much as 1 MB. Passive RFID tags do not need an exterior energy 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-yr span. Passive RFID tags are programmed with a particular set of data that can not be modified and zinedine01 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 is going 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 exterior reader, generally referred to as an interrogator. Tags are also called inlays and transponders. In technical terms an inlay is simply a tag on a versatile substrate ready for conversion right into a smart label. The smart label can extend the basic 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 can be read by way of fog and snow, heat and dirt, and other environmentally robust conditions where barcodes or any other optical identification systems would fail. Their high reading speeds are another advantage even though RFID technology is more expensive.
At current virtually every RFID implementation is different due to the performance necessities and value factors besides the signal transmission restrictions. They are used where barcodes prove inadequate but that doesn’t males that RFID technology will change barcodes. The market is big sufficient for both to proceed side by side.