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 idea as barcode besides that the method 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 doesn’t necessarily want a tag or label to be visible to read the data stored.
RFID tags fall into two classes, active or passive. Active tags have an inner 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 up to 1 MB. Passive RFID tags would not have an exterior power source and instead use the power generated from the reader. They’re therefore lighter, cheaper, and zinedine01 have an unlimited lifetime of operation, unlike active tags have a ten-12 months 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-power integrated circuit connected to an antenna and a protective packaging is used to enclose it relying 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, generally referred to as an interrogator. Tags are additionally called inlays and transponders. In technical phrases an inlay is simply a tag on a flexible substrate ready for conversion right into a smart label. The smart label can extend the fundamental 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 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 via fog and snow, heat and dust, and other environmentally powerful conditions the place barcodes or some other optical identification systems would fail. Their high reading speeds are another advantage despite the fact that RFID technology is more expensive.
At current virtually each RFID implementation is different due to the performance necessities and price factors besides the signal transmission restrictions. They are used where barcodes prove inadequate however that doesn’t men that RFID technology will replace barcodes. The market is big enough for both to proceed side by side.