Decrypt common technical problems in RFID application fields in life!Spring probe company

　　Decrypt common technical problems in RFID application fields in life

　　With the rapid development of the Internet of Things, new retail, and smart industries, RFID has emerged from people’s vision. RFID has been applied to many fields, such as production line management, vehicle management, warehouse management, personnel management, asset management, cash box management, and intelligence. Bookcases, weighing management, etc. are all based on RFID technology. Through the analysis of common RFID application field technical problems, to complete the RFID project. Therefore, RFID technology is widely used, and it is also an important part of IoT perception.

　　RFID applications involve many technologies, and a series of standard problems need to be solved, including frequency bands, coding, and data storage formats. However, with the large-scale application of RFID technology in the logistics industry, the unification of RFID standards has been recognized by the industry. A simple barcode update is also used to iterate into an electronic label. The RFID system is divided into two major application systems: data collection and background data network library. Among them, the air interface between the electronic tag and the reader, the data exchange protocol between the reader and the computer, the performance of the RFID tag and the reader, and the data content coding standard of the RFID tag, etc.

　　The core of the RFID standard contention is still in the field of data content coding standards for electronic tags. At present, the main international UHF UHF RFID technology is used in the 860MHZ-960MHZ frequency band. It has a frequency band requirement that is most suitable for the management of international logistics. How to realize the coexistence of RFID and barcode is also a challenge. At present, the application fields of electronic tags are mainly containers, pallets, packing boxes, or relatively expensive items. Because some consider the cost of RFID electronic tags, it will take some time to popularize them in large quantities.

　　Data in any format can be saved on the RFID tag. GEN1 is up to 128 bits, and GEN2 is 256 bits, so you can save the code that conforms to the EPC format on the RFID tag, or you can save your own defined data. As long as it does not exceed the maximum length. The usual practice is to store only the unique identification on the RFID tag, and its corresponding data is stored in the background data. Another question is whether to store only the code or other data on the label. Only the code is stored so that the database can be queried in order to link the label on the label with specific business information, such as the product corresponding to the label. Name, production date, manufacturer, etc. And if you save these data on the label, you can display or use it directly without querying the database. How to achieve very high accuracy and reduce card leakage.

　　RFID readers make judgments based on the on-site environment and surrounding signal interference. It is the accuracy of the collected data to realize the visibility of data and the automation of the process, improve efficiency and reduce costs. RFID middleware (ie RFID Edge Server) is a very important part of the RFID application framework recommended by EPCglobal. It is responsible for realizing information interaction and management with RFID hardware and supporting equipment. Information exchange of upper-level complex applications. At present, EPCglobal has introduced corresponding specifications (ALE, application-level events) to unify and standardize the software implementation at this level.

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