Question

write difference between RFID and barcode reader​

Answer 1

Answer:

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Barcode: The Differences. Barcodes are designed to be scanned one at a time whereas many RFID tags can be scanned at once. ... Barcodes require that the scanner maintain a line-of-sight with each code, while RFID is a “near field” technology, so the scanner only needs to be within range of the tag to read it.

Answer 2

Explanation:

Radio-Frequency Identification (RFID) :

It is an acronym for “radio-frequency identification” and refers to science whereby digital data encoded in RFID tags or smart labels are captured with aid of a reader by radio waves. In RFID data from a tag or label are captured via a gadget that stores data in a database. RFID, however, has quite a few benefits over systems that use barcode asset monitoring software. The most incredible is that RFID tag statistics can be examined outside line-of-sight.

An RFID tag incorporates a sensor connected to an antenna that allows transmission of data to reader. Each sensor carries a unique identifier and an RFID reader that can concurrently scan a lot of tags.

2. Barcode :

Barcode is a type of code which is machine-readable i.e. a machine-code/machine language in structure of numbers and a pattern of parallel lines of various widths, printed on a commodity and used specifically for stock control. Barcoding makes use of a scanner with a beam of light to “read” black and white traces of a barcode.

The scanner consists of a sensor that creates a signal from the mirrored or reflected light, and a decoder then interprets sign into textual content and sends it to a PC or database. Barcode scanners require line of sight and ought to “see” every barcode one at a time in order to seize data.