There are many classifications of RFID readers. If they are classified by communication method, they can be divided into two types: reader priority and label priority. Reader priority (RTF) means that the reader first sends RF energy and commands to the tag. The tag responds to the command sent by the reader only after it is activated and receives the complete reader command. Data information. Label Priority (TTF) means that for passive tag systems, the reader only transmits equal-amplitude, uninformed RF energy. After the tag is activated, the tag data information is backscattered. Classified by transmission direction, RFID read full duplex means when the RFID system is working
Allows tags and readers to transfer information bidirectionally at the same time. The half-duplex mode means that the RFID system only allows the reader to transmit commands or information to the tag at the same time, or the tag returns information to the reader. Classified by application mode, it can be divided into fixed readers, portable readers, integrated readers and modular readers.
RFID card readers applications
RFID card reader applications are continuously emerging from numerous companies looking to solve business problems using RFID technology. RFIDcard reader is particularly popular in marketing applications like advertising posters, smart items, and brand/item interactive experiences. The most used applications for HF RFID are access control applications, data transfer applications, and some ticketing applications.