The basic working principle of RFID technology.Animal ID Microchips Wholesaler

　　The basic working principle of RFID technology is: after the tag enters the RFID reader, it receives the radio frequency signal sent by the reader, and transmits the product information (passive tag or passive tag) stored in the chip with the energy obtained by the induced current, or The tag actively sends a signal of a certain frequency (active tag or active tag), and after the reader reads and decodes the information, it is sent to the central information system for related data processing.

　　The complete RFID system is composed of three parts: RFID reader and RFID electronic tag, which is the so-called transponder and application software system. Its working principle is that the reader emits radio wave energy of a specific frequency to drive The circuit sends the internal data, at this time, the RFID reader will receive and decode the data in sequence, and send it to the application program for corresponding processing.

　　The communication and energy sensing methods between RFID readers and electronic tags can be roughly divided into two types: inductive coupling and backscattering coupling. Generally, low-frequency RFID mostly adopts the first method, while higher-frequency RFID mostly adopts the second method.

　　The RFID reader can be a read or read/write device according to the structure and technology used, and it is the information control and processing center of the RFID system. An RFID reader is usually composed of a coupling module, a transceiver module, a control module and an interface unit. Half-duplex communication is generally used to exchange information between the reader and the tag, and the RFID reader provides energy and timing to the passive RFID tag through coupling. In practical applications, management functions such as collection, processing and remote transmission of object identification information can be further realized through Ethernet or WLAN.

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