NFC is a short-range wireless communication technology that allows two-way communication within a distance of no more than 10 centimeters.
NFC has a wide range of application scenarios, and is used in mobile payment, access cards, public transportation cards and other fields. In mobile payment, NFC can realize data transmission and exchange between cell phone and POS to complete the payment. In terms of access control card and public transportation card, NFC can realize contactless communication between card and reader for access control or bus ride. In addition, NFC can be applied to smart home, healthcare, retail and other fields.
NFC service combines near-field communication technology and mobile communication technology to realize various functions such as electronic payment, identity authentication, ticketing, data exchange, anti-counterfeiting and advertising. The near-field communication service enhances the function of cell phone, makes the user's consumption behavior gradually go electronic, and establishes a new type of user consumption and business mode.
Features of NFC
1, proximity sensing: the very short distance contact between NFC devices, so that the information can be realized between the NFC device point-to-point rapid transmission.
2, secure communication: very short distance communication is its inherent security, in order to avoid information being monitored or tampered with, NFC security mechanism can be used to ensure that the encryption/decryption system to ensure that the security of communication between devices.
3, very fast processing speed: NFC mobile devices from detection, identity confirmation to data access only 0.1s time.
4, no need for batteries: because the principle of operation is based on magnetic field induction, it does not require electricity, which can extend the life of the mobile device battery.
5, no pairing system: this technology does not use a pairing code to connect. The data transfer speed is 106Kbit/s, which enables data transfer between mobile devices.
Security: NFC technology uses security protocols to protect data and ensure safe data transmission.
Reference: Baidu Encyclopedia-NFC