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RFID reader principle
Nov 14, 2017

The basic working principle of RFID technology is not complicated: After the tag enters the magnetic field, it receives the RF signal sent by the reader and sends out the product information (Passive Tag, passive tag or passive tag) stored in the chip by the energy obtained from the induced current , Or take the initiative to send a signal of a certain frequency (Active Tag, Active Tag or Active Tag); The reader reads the information and decodes it and sends it to the Central Information System for data processing.

The rapid rise of radio frequency identification (RFID) is not only the result of technological development, but also the embodiment of application requirements. Since the 90s of the last century, various applications around RFID have sprung up like mushrooms. Today, we will briefly introduce RFID technology and one of the most important product - card reader.


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