A brief introduction and application of NFC cards

An RFID card is an IC card that uses RFID technology. It can replace many IC cards (including credit cards) in various applications such as shopping mall card swiping, public transport cards, access control, tickets, and admission tickets. A major advantage of this method is that the card is powered through the RF field of the contactless reader, allowing it to function even if the host device (such as a mobile phone) is out of power. Similar to RFID...

       NFC cardInformation is also transmitted via electromagnetic induction coupling in the radio frequency portion of the spectrum, but there are still significant differences between the two. First, NFC is a wireless connectivity technology that provides easy, secure, and fast communication, but its transmission range is smaller than RFID. Second, NFC cards are compatible with existing contactless smart card technology and have become an official standard supported by an increasing number of major manufacturers. Third, NFC is also a short-range connectivity protocol, providing easy, secure, fast, and automatic communication between various devices. Compared to other connectivity methods in the wireless world, NFC is a short-range, private communication method.