What is RFID (Radio Frequency Identification)? Find out its Applications

April 20, 2017
First Published On: April 14, 2016

Radio Frequency Identification (RFID) is the wireless induction system which is similar to the function of a general bar code. A smart RFID system includes of Tag, Reader, and Application and the individual tag have its unique RFID system that equips a unique ID itself.

Simply, it is described as a technology that records the availability of an object via radio signals. It is not entirely a replacement to the barcoding system, however, it’s a complement for distant analyzing of codes. This technology is used to auto detect an object such as a package, an item or a person. To do so, it relies on RFID tags.

These are transponders which are a combination of a radio transmitter and a radio receiver which will convey the identity information to a short distance if asked.

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How does RFID work

RFID system uses three main parts; a scanning antenna, a transceiver with a decoder to interpret the date, and the RFID tag which has information managed through programming.

The scanning antenna first puts out the radio-frequency signals within a short channel. The RF radiation then provides a path of communication through transponder (RFID tag) and also makes available of the RFID tag with the vitality to communicate.

One of the key features of RFID is that it doesn’t require to have a battery, so it can remain usable for decades. The scanning antenna scan is fixed permanently to its surface, to do so handheld antennas are available as well. Which can be shaped as per user’s need.

While a RFID tag runs through the part of the scanning antenna, it identifies the activation signal from the antenna which activates the RFID chip, and it transmits the available data on its microchip.

Further, the RFID tag might be any of two types, active RFID tags, and Passive RFID tags. The active one contains their own power source; which gives benefits of long distance signaling capability. The Passive RFID tags, however, do not need batteries, and even smaller and have a virtually unlimited life span.

Source: scienceinfotec

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Application of RFID

Health or Medical: RFID system is widely supportive in a healthcare facility to achieve patient safety, employees’ security and for many operational goals. It is helpful to create a customized stand-alone system to meet the requirements of different departments such as NICU, Memory-care unit, maternity ward, Labor, and delivery etc.

The use of RFID products in the medical lab are useful to track tissue or fluid samples, to reduce the errors from data entry. Moreover, it can even track the location of the millions of proprietary pharmaceutical compounds in the libraries.

Commerce: RFID provides a platform for organizations to maintain equipment and tools or to manage access tracking, without manual data entry. It is being used to provide tags on items in retail stores. It provides a self-checkout facility and Electronic Article Surveillance (EAS) to consumers.

This is also useful in inventory management system to manage items, garments or automobiles can easily be tracked through shipping to the customer or by the factory.

Gaming: RFID installed chips provide higher security, acceleration of anti-counterfeiting functionality, and acceleration of the chip counting process. Gambling tables with RFID readers system provide facility to regularly track individual chips and allocate these chips with a player who received them.

Gun safety products: The gun management debate being an irresolvable deadlock between the dueling imperatives of preserving security and protecting freedom. The concept of RFID tags in weapons has been cited as potential agreement.

While this idea was purposed in media by sites like Forbes.com, some of the politicians at present have taken up the potentially hot political issue. However, manufacturers like Armatix have already started to producing RFID involved gun safety products.

Library System: A RFID library management mechanism enhance the effectiveness of circulation operations. While barcodes need the specific line of sight, RFID tags can be identified from different angles which enable the check-in and check-out significantly faster.

Transportation: Some of the advanced cities are using RFID for intelligent transportation systems. In New Work City, RFID readers are provided at intersections to track E-Z Pass tags as a source to manage the traffic flow.

In London, travelers have provided Oyster Cards on the tube, ferries, and buses. This can identify the traveler at the different turnstile and so the mechanism can finalize the fare.

In Melbourne, Public Transport Victoria uses Myki ticket across the tram, bus networks, and the train. The system is based on RFID mechanism.

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