RFID READER

RFID READER

As an indispensable part of the RFID system, the RFID reader can also be subdivided into two parts: the RFID antenna and the RFID reader. The RFID reader transmits a signal “wake-up” and transmits instructions to the RFID electronic tag through the RFID antenna, and receives the signal returned by the RFID tag. After preliminary filtering and signal processing, the acquisition and analysis of RFID tag information is completed, and useful data is interacted with the data management system through the network. The data management system can be performed by simple local software, or distributed ERP management software integrated with RFID management modules.

The communication process of the RFID system is the process in which the RFID reader gives the RFID tag information and obtains the information on the tag. Since the passive RFID tag itself has no power source, it must rely on the energy obtained from the radio frequency signal sent by the RFID reader (beam power supply technology), and the energy obtained by the RFID tag is only enough to supply the electronic tag itself, and there is no excess energy available For the radio frequency signal source to work, passive reflection modulation technology must be used to realize the communication between the RFID reader and the RFID tag. The RFID tag modulates the continuous wave radio frequency signal emitted by the reader during the response process, and then reflects the modulated radio frequency signal back, and is received and decoded by the reader to complete the information transmission function.

Application: Widely used in various radio frequency identification (RFID) systems such as logistics, personal identification, conference sign-in system, access control system, anti-counterfeiting system and production process control.