Inventory management systems now rely on passive RFID technology for real-time automatic identification of products. For many applications, the return on investment for using RFID is acceptable. These systems must be able to capture the information of all products in stock in real time, which requires that the RFID system must be able to read 100% of all tagged items. The readability of an RFID system is a function of many variables including: tag size, orientation, placement, and interrogator antenna (IA) design. Unfortunately, for all single-antenna designs there is a “black hole” of unreadable tags. By analyzing and identifying these…

Radio Frequency identification (radio Frequency identifICation, hereinafter referred to as RFID) is a method of storing data on an electronic data carrier (such as an integrated circuit), and wirelessly performing transponder/tag (Transponder/Tag) and interrogator/ Two-way communication between readers (Interrogator/Reader), so as to achieve the purpose of identification and exchange data emerging technology. This technology can realize multi-target recognition and moving target recognition; it has anti-harsh environment, high accuracy, safety, flexibility and Scalability and many other advantages; it is convenient to realize item tracking and logistics management through the Internet, so it has received extensive attention. Therefore, RFID is recognized as…

1. Overview of traditional EAS systems With the continuous improvement of people’s living standards and the continuous evolution of lifestyles towards leisure and comfort, in shopping malls, bookstores, libraries and other occasions, open-shelf sales and open-shelf borrowing have become the main means for people to shop and borrow. It serves as a major means to improve service quality and economic benefits. But the ensuing problem is: the loss of goods and books has become a headache for merchants, which seriously damages the interests of merchants, makes the profits of merchants lose in vain, and even leads to the closure of…

Radio frequency identification technology (RFID) has the advantages of non-contact, non-line-of-sight identification, rewritable information, greater reading and writing distance, large capacity (relative to barcodes), and multiple identifications. It has been used in logistics supply chain management, production management and Control and other fields have been widely used. In the logistics industry, express service giants UPS and DHL have launched RFID system testing and practice, and the International Postal Union has also tested the use of RFID technology for international mail to improve the efficiency and quality of mail delivery. This paper discusses the application of this technology in mail processing,…

RFID (Radio Frequency Identification) is a non-contact automatic identification technology, which uses radio frequency signals to achieve non-contact information transmission through spatial coupling (alternating magnetic field or electromagnetic field) and achieves the purpose of identification through the transmitted information. The identification work does not require Manual intervention has the advantages of large data storage, readable and writable, non-contact, long recognition distance, fast recognition speed, good confidentiality, strong penetration, long life, good environmental adaptability, and the ability to identify multiple tags at the same time, and Can work in various harsh environments. In the discrete manufacturing industry, the production workshop is…

Radio frequency identification technology (RFID) is the abbreviation of Radio Frequency Identjfication, which is a non-contact identification technology and a more specific technical name for the application of radio technology in the field of automatic identification. Electronic tag is a popular name for Radio Frequency Identification (RFID). It automatically identifies the target object and obtains relevant data through radio frequency signals. The identification work does not require manual intervention and can work in various harsh environments. This electronic tag has the advantages of waterproof, antimagnetic, high temperature resistance, long life, small size, long reading distance, encrypted data storage and batch…

In actual design, the real practical trick is how to trade off these guidelines and laws when they cannot be accurately implemented due to various design constraints. Of course, there are many important RF design topics worth discussing, including impedance and impedance matching, insulating layer materials and laminates, wavelength and standing waves, etc. Careful planning under the premise of a comprehensive grasp of various design principles is the guarantee of a successful design the first time . 1. Common problems in RF circuit design 1. Interference between digital circuit modules and analog circuit modules If the analog circuit (RF) and…

Radio frequency identification technology is a non-contact automatic identification technology. It is a short-distance wireless communication system composed of electronic tags (Tag/Transponder), readers (Reader/Interrogator) and middleware (Middle-Ware). The tag in radio frequency identification is a combination of radio frequency identification tag chip and tag antenna. Tags are divided into active tags and passive tags according to their working modes. The active tag itself carries a battery to provide it with the energy required for the reader to communicate; the passive tag uses the inductive coupling or backscattering working mode, that is, the electromagnetic field or electromagnetic wave emitted by the…

RFID is a general term for radio frequency identification technology, which is the same as other identification methods such as barcodes and IC cards. Its basic function is to identify the unique identifier (UID) of the target item. The difference is that it uses radio frequency transmission to complete non-contact automatic identification. , and realize the identification of moving targets and multi-targets. RFID is also a data communication technology. It has the basic functions of the basic components of the communication system, such as sending, receiving and channeling, and transmitting information. The difference is that the information it transmits is…