Radio Frequency Identification (RFID): How Does It Work?

RFID can be a phrase for “radio-frequency identification” and describes engineering whereby digital knowledge encoded in RFID tags or smart labels (defined below) are grabbed with a reader via radio waves. biometric photo can be compared to barcoding because knowledge from a bring or brand is grabbed with a device that shops the information in a database. RFID, however, has several advantages over techniques that use barcode asset checking software. Probably the most notable is that RFID label data could be read away from line-of-sight, whereas barcodes should be aligned having an optical scanner.


RFID belongs to several technologies known as Computerized Identification and Data Record (AIDC). AIDC strategies immediately recognize items, acquire information about them, and enter that information into pc methods with little or no human intervention. RFID strategies employ radio waves to accomplish this. At a straightforward level, RFID methods include three parts: an RFID draw or wise brand, an RFID audience, and an antenna. RFID tags contain a circuit and an aerial, which are accustomed to transmit data to the RFID reader (also called an interrogator). The reader then converts radio station waves to an even more usable type of data. Information gathered from the tickets is then shifted through a communications program to a bunch of computer processes, where the knowledge could be stored in a database and analyzed later.


As stated above, an RFID tag includes a circuit and an antenna. The tag consists of a defensive material that holds the pieces together and shields them from various environmental conditions. The protective material is dependent upon the application. For instance, worker ID badges containing RFID labels are usually produced from resilient plastic, and the label is embedded involving the levels of plastic. RFID tags can be found in many different shapes and sizes and are either passive or active. Passive tags are probably the most widely used because they are smaller and less expensive to implement. Passive tags should be “powered up” by the RFID reader before they can transfer data. Unlike passive tickets, productive RFID tickets have an onboard power (e.g., a battery), thus permitting them to transfer information at all times.


It can be employed in many Industries to perform such task as:

– Inventory management

– Supply chain management

– Asset tracking

– ID Badging

– Personnel tracking

– Controlling use of restricted areas

– Counterfeit prevention (pharmaceutical industry)

Although RFID technology has been around since World War II, the demand for RFID equipment is increasing fast, in part consequently of mandates issued by the U.S. The Department of Defense (DoD) and Wal-Mart requesting their manufacturers allow products and services to be traceable by RFID.

If RFID conformity is necessary, purposes that currently use barcode technology are good prospects for replacing something with RFID or some mixture of the two. RFID presents many advantages within the barcode, particularly that an RFID tag holds a lot more data about an item than a barcode scan. Furthermore, RFID tags aren’t susceptible to the damages that may be incurred by barcode labels, like ripping and smearing.

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