RFID (Radio Frequency Identification), a wireless system that uses radio frequency to achieve the goal of identification and data exchange between reader and RFID card without contact, is divided into low frequency (LF), high frequency (HF), ultra-high frequency (UHF), and microwave (MW) according to different application frequencies, and their representative frequencies are respectively: below 135 KHz for LF, 13.56 MHz for HF, 860M~960MHz for UHF, and 2.4GHz for MW.
RFID labels, a non-contact automatic identification technology, have chips and antennas, can repeatedly write data for multiple uses and bulk reads, and save costs. What are the functions of RFID labels? The common functions and uses of RFID labels are as follows:
RFID labels can be quickly wirelessly identified and scanned; RFID labels are small in size and can be posted or hung in various positions on items, and have diverse appearances; they are resistant to pollution, durable, and resistant to high and low temperatures, and specific labels can be waterproof and dustproof, and anti-metal labels; they can be used in one-time anti-disassembly type or in reusable type; RFID labels have good signal penetration, can penetrate non-metallic materials (such as paper packaging boxes, plastic cases, etc.), and have no barrier for reading and writing in gas space; RFID labels have large storage space and information memory capacity; and high security, with multiple encryption measures in signal transmission process, and only RFID labels within the system can read and write.
The typical features of RFID labels include: outstanding physical performance, which can be encapsulated in paper media; having ID numbers to ensure anti-counterfeiting; RFID labels can store information data, and electronic management of special certificates is one of the typical application aspects. RFID label identification technology can automatically identify accurately through computer networks and data processing technology; issuing RFID labels does not require contact, and the response is sensitive and quick and convenient to use; it can be accurately identified by handheld readers (PDA) or fixed RFID readers without errors; and the system can be based on Windows or Android platforms for easy operation, installation, debugging, and maintenance as well as stability and reliability. Wireless RFID label recognition can improve item management efficiency and simplify management by setting permissions; it is easy to expand and can achieve statistical, query, tracking and other functions; and it can also realize remote communication and remote identification and query.
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