Introduction To NFC

The full Chinese name for NFC is Near Field Communication Technology. NFC is developed on the basis of non-contact radio frequency identification (RFID) technology combined with wireless interconnection technology. It provides a very safe and fast communication method for various electronic products that are increasingly popular in our daily life. "Near field" in the Chinese name of NFC refers to radio waves that are adjacent to electromagnetic fields. Because radio waves are actually electromagnetic waves, they follow the Maxwell equation. Electric and magnetic fields undergo alternating energy conversion during the process of propagating from the transmitting antenna to the receiving antenna, and enhance each other during the conversion. For example, the radio signals used in our mobile phones are propagated using this principle, which is called far field communication. Within 10 wavelengths of an electromagnetic wave, the electric field and magnetic field are independent of each other. At this time, the electric field has little significance, but magnetic fields can be used for short distance communication, which we call near-field communication.
The near-field communication service combines near-field communication technology and mobile communication technology, achieving multiple functions such as electronic payment, identity authentication, ticketing, data exchange, anti-counterfeiting, advertising, and so on. It is a new type of service in the field of mobile communication. Near field communication services have enhanced the functionality of mobile phones, enabling users to gradually move towards electronic consumption behavior, and establishing a new type of user consumption and business model.
The application of NFC technology has received widespread attention worldwide, with different roles such as telecom operators and mobile phone manufacturers at home and abroad launching application trials. Some international associations and organizations are also actively engaged in standardization development. According to the prediction of relevant institutions in the industry, mobile applications based on near-field communication technology will become the next killer application of mobile value-added services.