Science and Technology

Computers Baggage tags equipped with radio-frequency identification will soon be available at Delhi’s Indira Gandhi International Airport.

·       Radio-frequency identification (RFID) technology Radio-frequency identification (RFID) may be a technology that uses radio waves to automatically determine varied labelled objects.

·       Radio frequency Identification (RFID) may be a wireless following technique that uses tags and readers to trace objects.

·       Transponder, receiver, and transmitter are the 3 elements of an RFID system.

·       The RFID reader continually sends radio waves of a specific frequency in the RFID system.

·       If the thing to that the RFID tag is hooked up is inside the vary of the radio waves, it provides feedback to the RFID reader, that then identifies the thing supported the feedback.

·       There are three types of RFID tags:

·       Passive tags: There is no power supply for passive tags.

·       They acquire their power from the readers’ incoming radio waves.

·       Semi-passive tags: They comprise an internal circuit with a power source, but rely on the radio waves received from the reader to transmit the response.

·       Active tags: Their internal circuit is powered by an influence supply.

·       It conjointly utilises its own power offer to send the response to the reader.

·       The Low Frequency, High Frequency, and Ultra-High Frequency bands are used by RFID systems.

·       Barcode A barcode is a printed series of parallel bars or lines of varying width used for entering data into a computer system.

·       The bars are black on a white background and vary in width and quantity depending on the application.

·       The bars represent the binary digits zero and one, that represent the digits zero to 9 processed by a digital computer.

·       These barcodes are scanned using special optical scanners called barcode readers.

·       The bulk of those codes use only totally different completely different widths of bars, but some use four.

·       Example: QR code Difference between Barcode and RFID Barcode RFID Barcodes use light to read the black-and white pattern printed on the sticky tag.

·       RFID uses radio waves to communicate data from RFID chips to readers when printed on paper or sticky labels, barcodes are more susceptible to wear and breakage, which can affect their readability.

·       RFID tags are generally placed in plastic labels or into the thing itself, creating them a lot of sturdy than barcodes.

·       Theyll solely method one tag, that too manually.

·       RFID scanners will method dozens of tags during a single second.

·       Barcodes are straightforward and simple to repeat or counterfeit.

·       RFID is a lot of sophisticated and troublesome to copy or counterfeit.

·       Barcodes need to be within the line of sight.  

RFID tags neednt be.