The difference between RFID and barcode

1, the role of different

Bar code is the width of a number of black bars and blank, according to certain coding rules, to express a set of information graphical identifier. Common bar code is a large difference in reflectivity by the black bar (referred to as bar) and white bar (referred to as empty) arranged in a parallel line pattern.

RFID is a reader and tag for non-contact data communication between the radio frequency identification technology to identify the target.

2, the application of different

RFID applications are very broad, the current typical application of animal chips, car chip immobilizer, access control, parking lot control, production line automation, materials management.

Barcodes can be marked with the country of production of the item, the manufacturer, the name of the commodity, the date of production, book classification number, mail start and end locations, categories, dates and many other information, and therefore in the circulation of goods, library management, postal management, banking system and many other areas are widely used.

3, different working principles

Radio frequency identification technology through radio waves without contact with rapid information exchange and storage technology, through wireless communication combined with data access technology, and then connected to the database system, and to realize the non-contact bidirectional communication, so as to achieve the purpose of identification, for data exchange, in series, an extremely complex system. In the recognition system, through the electromagnetic wave realizes the electronic label read-write and the communication.

Barcode technology, with the development and application of computer and information technology was born, it is a set of coding, printing, identification, data acquisition and processing in a new technology.

Baidu Encyclopedia - Barcode

Baidu Encyclopedia - RFID