The hottest electronic label has stepped down from

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Electronic labels have stepped down from the altar of the two major schools of standards to confront the RFID based applications such as automatic road toll collection system, access control system and identity recognition have already been integrated into our daily life, but RFID as the core technology has not attracted much attention; However, Wal Mart's agreement of "requiring the top 100 suppliers to use RFID technology when sending pallets and packing cases to their distribution centers before January 2005" and the establishment of China's national standard working group on electronic labels have pushed RFID to a new upsurge, making RFID one of the hottest words in 2004. Therefore, it is not the RFID technology itself, but the application of RFID in the field of commodity circulation and supply chain that is the real hot spot; In other words, the rise of RFID technology is not because it is a new technology, but because it has begun to mature and gradually has the ability to move towards practical application

rfid challenge bar the computer automatically calculates the yield strength, tensile strength, elastic modulus, elongation and other shape codes of the sample

although logistics and supply chain are only one of the application fields of RFID, if RFID technology can be closely linked with electronic supply chain, it is likely to replace bar code scanning technology within a few years, and will bring revolutionary changes to retail, logistics and other industries

at present, in the field of commodity circulation, bar code is the main means of product identification, but bar code still has many insurmountable shortcomings: for example, bar code can only identify a class of products, and can not identify single products; Bar code is a visual communication technology, which can only be read when it is visible; The bar code is easy to be torn, stained or peeled off

RFID (radio frequency identification) is a non-contact automatic identification technology. It automatically identifies the target object and obtains relevant data through radio frequency signals. The identification work does not need manual intervention. At the same time, RFID technology can identify moving objects and multiple tags at the same time, and is not afraid of oil and dust pollution. It can be said that RFID has the advantages of waterproof, antimagnetic, high temperature resistance, long service life, large reading distance, encryption of data on the label, larger storage capacity, and changeable storage information that bar codes do not have. Of course, the application of RFID in the logistics field is not only related to RFID technology itself, but also a huge application system, including technology, management, hardware, software, network, system security, radio frequency and many other aspects. Judging from the current situation, RFID will not completely replace bar code in at least a few years. In other words, RFID will replace bar code and still face many problems to be solved, such as standards, application system follow-up, price, security, privacy protection, etc

rfid can identify and track every single item in the supply chain. The key is that each RFID tag has a unique identification code. At present, there are various coding systems for goods in the field of circulation. For example, the Jan code, EAN code and UPC 3 Jinan assaying lifting guide wheel regulates incorrect codes and ISBN codes in books. But these are the codes for product categories, not for each item

at present, there are two coding systems for the application of RFID in Logistics: one is the uid coding system proposed by the Japanese uid Center (ubiquitous ID - ubiquitous ID center, which is actually the standardization organization of electronic labels in Japan). There are 352 Japanese electronic manufacturers, information enterprises and printing companies supporting this camp. The other camp is the EPC electronic product coding standard proposed by the American "EPC (electronic product code) Global Association". More than 100 circulation enterprises in the United States and Europe, such as Wal Mart chain group, the world's largest retailer, and Tesco in the United Kingdom, are members of EPC. At the same time, IBM, Microsoft and auto ID lab in the United States conduct technical research and support

there are many differences between the Japanese uid standard and the European and American EPC standard in the used wireless frequency band, information bits and application fields. For example, the frequency bands adopted by electronic labels in Japan are 2.45GHz and 13.56MHz, and the European and American EPC standards adopt UHF frequency bands, such as 902mhz ~ 928mhz; The number of information bits of electronic labels in Japan is 128, and the number of bits of EPC standard is 96; Japanese electronic label standards can be used for inventory management, information sending and receiving, and tracking management of products and parts. EPC standards focus on logistics management, inventory management, etc

the disunity of standards (especially the standards for data format definition) is the primary factor restricting the development of RFID. Because each RFID tag has a unique identification code, if its data formats have many kinds and are incompatible with each other, then RFID products using different standards cannot be universal, which is very unfavorable to the circulation of goods under the economic globalization. The issue of data format standards involves the interests and security of various countries. The current situation is that the two major standards organizations in Japan, "ubiquitous ID center" and the United States, EPC global, are incompatible with each other. China has also begun to develop its own RFID standards. It is expected that many other countries will also start to develop their own standards. How to make these standards compatible with each other and make an RFID product circulate smoothly in the world is an important and urgent problem that needs to be solved in the gas spring experiment of various vehicle models

another problem about standards is that there is no formal international standard for RFID products (including various frequency bands). At present, RFID products launched by various manufacturers are incompatible with each other, resulting in confusion and incompatibility of RFID products in different markets and applications. This is bound to hinder the stable growth of RF equipment industry and the interoperability and development of ID products with improved quality and efficiency in the future

at present, the national standard working group of China's electronic labels is considering the formulation of China's RFID standards, including the standards of RFID technology itself, such as chip, antenna, frequency, and various application standards of RFID, such as the application standards of RFID in various fields such as logistics, identity recognition, traffic charges, etc

rfid management and application software are not popular.

"not only RFID itself, but also RFID reading equipment and related application software will form a large market with rapid development." Chenguopei, chief engineer of the national unified product and service code management center, pointed out that many domestic manufacturers are paying attention to RFID chip technology, but pay less attention to the back-end application software of RFID and the management of electronic labels in circulation. For enterprises using RFID technology, how to effectively deal with the huge data brought by the application of RFID technology to reduce costs and improve production efficiency is a crucial issue. Therefore, enterprises need a data management platform, which includes back-end databases, applications and correct analysis capabilities to process a large amount of data generated by RFID systems. Otherwise, enterprises may be inundated by a large amount of data and not get the benefits of RFID technology. At present, many large application system developers abroad, such as sun, sap, Oracle, IBM and so on, have seen this problem or business opportunity, and have begun to integrate RFID technology into their products to meet the huge demand in the future

in addition, from the current situation, the application of RFID is still limited within the enterprise, and less attention is paid to the management of RFID in logistics, because it involves the whole links of the supply chain, including logistics distribution units, customs, industry and commerce, taxation and other links. The application of RFID is an ecological environment. Only the tag itself can not be applied. There must be corresponding application environment and management means to promote the large-scale popularization of electronic tags

in addition, the large-scale application of RFID also involves price, privacy protection and security issues. At present, there are still obstacles for RFID technology to be applied in the field of information confidentiality requirements. How to improve the security of electronic labels without increasing too much cost is still a problem to be further studied

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