RFID · VS · Traditional Barcode 2004-07-14 13:36 Recently, reports about RFID are frequently met with media. According to a report, the three RFID Industry Alliance submitted the RFID standard recommendation to the RFID standard settlement agency "Epcglobal" in Brussels. According to the industry, with the establishment of RFID technology standards, RFID will eventually replace barcode identification technology, and become the protagonist of the commodity label market. RFID has accelerated, and the market value has risen sharply. The degree of market payment is rising, so that RFID has become one of the most popular vocabulary in 2004. RFID (RADIO FREQUENCY IDENTIFICTION) radio RF identification technology is one of non-contact automatic identification technology. Unlike the traditional barcode, the optical electric effect is different. The RFID tag does not have to manually operate, and the product information can be automatically sent to the reader without manual operation. Although RFID is an earlier technology, it has shown a major development situation in recent years. At the end of April 2003, the world's third largest supermarket giant Metro (Metro) in Germany, launched the world's first RFID technology concept shop - "Future Store"; Subsequent, retail giants Wal-Mart (Wal-Mart The largest 100 suppliers required to install RFID tags on all cargo boxes and trays before New Year's Day in 2005; US Food and Drug Administration fda joined RFID camp in early 2004, and claimed all imports in the future Drugs must be added electronic labels to ensure the supervision and management of drugs. There are indications that RFID is accelerating the commercialization process, becoming a retail, logistics industry hot mainstream technology trend, and market consulting firm Forres Ter is one of the four major development trends in the 2004 IT industry. A series of market surveys conducted by RFID show that the market value of RFID is very considerable. According to research institutions, about 5,000 RFID systems have been installed in the world, and the actual annual sales of approximately $ 964 million; to 2008, the total market for RF identification labels will reach $ 31 billion. . RFID can play the biggest advantage in the retail industry, so its market share will also be maximized in the retail industry. According to market research firm IDC, only RFID software, hardware and service costs will increase from $ 8.5 million in 2008 to nearly $ 1.3 billion in 2008. RFID is not in any emerging technique by the extent of market attention. In the List of RFID camp, we can find that from all parties to promote the strong power of RFID. In terms of market demand, the world's top retail giant Wal-Mart, Tesco (Tesco), Metro requires that the goods provided by their suppliers must have RFID tags; in the intermediate software development, Microsoft, Oracle Oracle, SUN and other IT master announced the development of RFID software development; in hardware equipment, Alien, Philips, IBM, etc. announced a strategic alliance for increasingly mature RFID smart card markets; in terms of technical standards, headquarters is located in the US Mass Institute of Technology ( MIT) AUTO-ID CENTER and Japan Ubiquitous ID Center also proposed independent RFID technology standards. RFID is compared to barcodes, which can complete the automatic reading of the tag content; the height data integration can be recorded for more information on the product; the readable write-only function supported by RFID makes it in the goods More powerful in circulation. The traditional bar code technology is to utilize the photoelectric effect, and the optical signal is converted into an electrical signal using the barcode reader, and then read the information "stored" "stored" of the barcode.
The traditional barcode is a "myopia" that can only be "recognized" when it is close to the barcode recognizer; the RFID tag is different, it can continue to transmit radio waves or passively, as long as it is in RFID Within the reception range of the reader, it can be "inducted" and correctly identifies that the transmission and receiving distance of the reader can be shorter, depending on its own output power and the frequency of use, from a few centimeters to dozens of meters. Wait. Since the radio waves have a powerful penetration, we have a distance, even the goods inside, even in the box or other packaging container, without disassembling the packaging of the product; in addition, RFID's scanning speed is also the traditional barcode technology. In contrast, the RFID reader can read the related data of the product from the RF tag every 250 milliseconds. At the same time, RFID supports batch processing, the barcode tag requires a recognition, and the RFID reader can process more than 200 labels at the same time. In terms of processing data, the advantage of RFID is very obvious. The RFID tag has an uncomprivible capacity advantage with existing barcode labels. Regarding the "massive", China Standardization Association, the Chinese Standardization Association, the Chinese Standardization Association, Wang Shujun, "RFID's capacity is enough to be a code for each rice, which can accommodate 2 of the 96th code, 26.8 billion code". The current one-dimensional EAN / UPC barcode has a capacity of several tens of characters, and the largest two-dimensional barcode (PDF417) can only store 2,725 numbers, which can only act as a marking data. And you can't directly describe the product. If we want to know about the product, you must establish a database represented by the code in advance to the index field, and then enter the database by reading the barcode. If we use the RFID tag, we don't have such a big discount. The capacity of the RFID tag can be maximized to dozens of Keries according to the needs of users, and it is fully capable of incorporating a product introduction of a product of thousands of words. The user can not only know the price, origin, manufacturer, product precautions such as the product, but can even read some of this product. Of course, the premise is that this information should be written to the label by the manufacturer. RFID supports readable write. The information in the traditional barcode is read-only. If you want to change the content inside, add new information, you can only re-print a bar code, the old bar code is abandoned; and the RFID tag supports information writing, you can After the label is manufactured, read and write through the RFID will be written at any time you want to add information. This is specifically useful for nodes in logistics. A cargo, from the manufacturer to the retailer, the target transport started ground, the transfer location, termination location and the target can be written to the RFID tag. In this way, on the one hand, it clarifies the relationship between the parties in the circulation, improves logistics efficiency; on the other hand, a piece of goods from the factory to consumers, how many links, users can know that they can know one clear, there is It is conducive to improving the transparency of commodity transactions, allowing consumers to buy goods. Once you have purchased the goods with RFID tags, you can also hit your own information so that you don't have to bring your invoice when you are lost, or when you need to repair, you don't have to bring your invoice. The information on the label can confirm you. Ownership of the goods. In addition, RFID also has the advantages of long service life, high security, low environmental requirements. The longest life of the RFID tag can reach more than 10 years. It has the waterproof, anti-magnetic, high temperature resistance and other performance of the barcode; in the case of snow, fog, ice, all kinds of stains, etc. The optical identification technology of traditional barcodes will fail, while RFID is still working properly.
