RFID is a radio frequency identification technology, a handheld reader, which is a type of automatic identification technology. Conceptually, RFID is similar to bar code scanning. For bar code technology, it attaches the encoded bar code to the target and uses a dedicated scanning reader to transmit information from strip magnet to scan read and write using optical signals. RFID uses a dedicated RFID reader and a dedicated RFID tag that attaches to the target, using frequency signals to transmit information from the RFID tag to the RFID reader. RFID applications are ubiquitous, and research has said that RFID technology will replace barcodes and QR codes to lead the trend of electronic labels.
RFID technology will replace barcodes and QR codes
According to the explanation provided by the National Internet of Things QR code public service platform, the two-dimensional code is an information technology that records data in a plane by a certain geometric shape, compared to one-dimensional bar code, RFID (radio frequency) and other technologies. The two-dimensional code can carry a large amount of information in a small area, the printing and reading costs are lower, the security and confidentiality are stronger, the recognition efficiency is higher, and the magic of being able to "passively take the initiative".
In fact, the two-dimensional code is based on one-dimensional bar code to expand another dimension, using a rectangular pattern to represent binary data, Yang insisted that the length and width of the two-dimensional bar code are recorded in the data, can accommodate 1850 uppercase Letters or 2710 digits or 1108 bytes or more than 500 Chinese characters, dozens of times higher than the content that ordinary barcodes can store. Not only that, but you can also encode information such as pictures, sounds, text, fingerprints, and URLs. At the same time, the three vertices of the square QR code are used as "positioning points", and the reader can read and recognize from any direction by recognizing the positioning points. And many users have an experience when scanning QR codes - they don't need to be completely clear, and sometimes even a part of the QR code can be read.
“When the supermarket cashier scans the bar code of the product, the bar code on the plane such as the box is easy to sweep, but for example, the uneven items such as taro and vegetables, the bar code sometimes cannot be swiped out, but has to be manually entered,†Shanghai University of Technology Management Professor Yang Jianzhen, deputy dean of the college, director of the Policy and Legal Committee of the China Electronic Commerce Association, and member of the National Article Coding Technical Committee, said, "The QR code has a strong fault tolerance. When the QR code is damaged or bent due to perforation, fouling, When you fold, you can still read it. Even if the damage area reaches 50%, it can still be recovered."
At the same time, RFID technology relies on the wireless radio frequency automatic identification technology on the Internet to make non-contact, long-distance, transmissive and mobile identification of items, so that items can be produced, stored, transported, distributed, sold to consumers. All links in the supply chain are tracked in real time, and the product logistics information is automatically recorded to realize the automation of product logistics information. At the same time, the traceability of the logistics information is automatically tracked to achieve the best anti-counterfeiting effect.
RFID technology has the advantages of absolute anti-counterfeiting, encryption technology, inability to reuse, full traceability, and information control. It can better reduce labor costs, improve work efficiency, reduce investment in anti-counterfeiting and counterfeiting, and improve product quality. RFID technology is the core technology of the Internet of Things, which will bring about tremendous changes in the logistics information industry. Developed countries are relying on the Internet and RFID technology to establish an international Internet of Things system. The era of international Internet of Things is coming soon. RFID tags are an indispensable means of identification for articles entering the international Internet of Things. It is reported that RFID technology has been widely used in the European and American markets. With the development of RFID technology in the Chinese market and the reduction of the price of RFID tags, RFID tags will replace barcodes and QR codes.
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