How RFID Works In Tech and Revolutionizes Industries

An RFID reader sends Radio Frequency (RF) signals via an antenna. The antenna radiates the RF energy, and it is absorbed by the RFID tag attached to a good or material. The tag uses the absorbed energy to &#;power up&#; and return data from the embedded chip. The returned RF signal is captured by the reader&#;s antenna and decoded by the reader. A connected system receives the decoded input for decision making.

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Benefits

Compared to traditional barcode scanning for inventory control, RFID provides huge labor savings. Instead of a worker finding and scanning a barcode, RFID does not require direct line-of-sight. A fixed or mounted reader can capture all tags over a large area in a fraction of the time when compared to traditional 1D/2D laser scanners. With RFID components working in harmony, true inventory accuracy can be achieved in a fraction of the time a traditional cycle count requires.

Beyond labor savings and accuracy, additional security and theft mitigation is made possible with RFID. A great use case in retail is preventing theft and loss of goods by placing readers at the entry/exit and ensuring all items passing through have been paid for. In a warehouse, this same concept of increased visibility can be applied to ensure tools and equipment never leave the work area.

There are four main components required for an RFID scan transaction: a reader, an antenna, an RFID tag, and a system for processing the result(s).

Radio Frequency Identification (RFID) technology uses radio waves to identify people or objects. There is a device that reads information contained in a wireless device or &#;tag&#; from a distance without making any physical contact or requiring a line of sight.

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RFID technology has been commercially available in one form or another since the s. It is now part of our daily lives and can be found in car keys, employee identification, medical history/billing, highway toll tags and security access cards.

The United States government uses two types of RFID technology for border management&#;vicinity and proximity:

• Vicinity RFID-enabled documents can be securely and accurately read by authorized readers from up to 20 to 30 feet away.
• Proximity RFID-enabled documents must be scanned in close proximity to an authorized reader and can only be read from a few inches away.

No personal information is stored on the RFID card &#; only a number, which points to the information housed in secure databases.

Trusted traveler programs NEXUS, SENTRI, and FAST have used vicinity RFID technology to speed travelers through land border entries since .

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