What is NFC/RFID tag? NFC/RFID electronic tags are also called radio frequency tags, smart tags. NFC/RFID tag contains NFC/RFID chip, using RFID radio frequency identification as the basic technology to complete data storage, reading and other operations, data is stored in the NFC/RFID chip. Unlike other tags, when we use NFC/RFID tags, we usually don’t need to be able to see where the tag is, as long as we know where it is located. This is because NFC/RFID tags send and receive radio frequencies of specific frequencies ( A type of electromagnetic wave) to complete communication with the corresponding NFC/RFID reader device, and it is penetrative. It does not need to be exposed like bar code tags and laser tags, so that the corresponding equipment can scan and read.
The structure of NFC/RFID tags
NFC/RFID chip and corresponding antenna are the basic components of NFC/RFID tag. Of course, in actual use, NFC/RFID tags are often encapsulated in different packages, such as the inside of the packaging box and the inside of the bottle cap.
RFID technology is divided into low frequency, high frequency, UHF and UHF according to different frequency bands. NFC is a kind of RFID, namely high frequency RFID. NFC tag chips account for a small proportion, but they have the most complex structure and the highest process requirements. Of course, the antenna design is also very important, and it must be matched with the chip. For example, the frequency of the NFC chip is 13.56MHz, and it follows the ISO/IEC14443A, ISO/IEC14443B, and ISO/IEC 15693 protocols. The corresponding antenna design and the UHF RFID chip that follows ISO18000 will be different.
So what is the difference between NFC/RFID tags and ordinary tags?
First: Unlike ordinary tags such as barcodes that require one-to-one reading of data, NFC/RFID readers can read and write data one-to-many to the corresponding tags.
Second: The penetration of radio frequency technology. NFC/RFID tags can be operated in a non-contact manner without the need to expose the tags for scanning.
Third: NFC/RFID tags have low environmental requirements and can work in a variety of harsh environments. The tags are not easily damaged and do not affect reading.
Fourth: It can be highly accurate, rapid, and large-scale recognition and recognition, so it can be used for fast moving objects.
Fifth: Automation, intelligence, reduce manual operation. This is why NFC/RFID tags are called smart tags, and they play an important role in intelligent construction, such as smart homes and smart transportation.