RFID data collection method principle introduction

source：Industry News Popular：rfid fpc tag release time：2022-03-18 10:04:15 Article author：sznbone

　　RFID is different from barcodes and two-dimensional codes. Both barcodes and two-dimensional codes can be considered as patterns printed on pieces of paper, encoded in black and white strips or black and white grids on the pattern, without chips. RFID is an electronic tag, the information is stored in the chip, and the chip can read and write. The printer used is also a specialized printer capable of writing information on the chip.

　　The working principle of the RFID system: the information to be sent by the reader or handset is encoded and loaded on a carrier signal of a certain frequency and sent out through the antenna, and the electronic tag entering the working area of the reader receives the pulse signal. Information can be read from or written to RFID tags. Labels can write information, which is a major advantage of RFID technology. After barcodes and QR codes are printed, they can only be read and cannot be written again.

　　RFID electronic tag: It consists of a chip and a built-in antenna. A certain format of electronic data is stored in the chip, which is used as the identifying information of the item to be identified, and is the real data carrier of the RFID system. The built-in antenna is used for communication with the RF antenna.

　　There are three categories of RFID technology products: passive RFID products, active RFID products, and semi-active RFID products. Passive RFID products do not have batteries, while active RFID products and semi-active RFID products have batteries. Semi-active RFID products have low battery power and rely on their own battery energy to maintain the to-be-activated state when not communicating with the reader.

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