Radio-frequency identification (RFID) uses electromagnetic fields to automatically verify and track tags attached to objects without any human intervention. An RFID tag includes a small transponder, a receiver and a transmitter. When stimulated with an electromagnetic pulse from a nearby RFID reader, the tag transmits digital data, to identify inventory number & transmit back to the reader. RFID methods make use of radio waves to accomplish this. At an easy level, RFID systems consist of 3 components: an RFID tag or a label, a reader, and an antenna. RFID tags include an integrated circuit and an antenna, that are used to send out statistics to the RFID reader. The reader then transfers the radio waves to amplify the signal which can be read in a better form. Information collected from the tags is then transferred through a chain of communication system, where the information can be stored in a database and analyzed. The best part of RFID tag is that statistics may be read outside the line-of-sight, while barcodes ought to be aligned with an optical scanner. There are applications where RFID Technology can be used and leveraged to improvise efficiency of the overall system.
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