Sihai network

What is the function of NFC? What's the use of NFC

What is NFC? What is the function of NFC? That is, near field communication. NFC is the abbreviation of near field communication, that is, short-range wireless communication technology. NFC, jointly developed by Philips and Sony, is a non-contact identification and interconnection technology, which can carry out short-range wireless communication between mobile devices, consumer electronics, PCs and intelligent control tools. In short, what is the function of NFC? What is the function of NFC?

What is the function of NFC? What is the function of NFC

In fact, NFC provides a simple and tactile solution that allows consumers to exchange information, access content and services simply and intuitively. NFC technology allows non-contact point-to-point data transmission between electronic devices. Within 10 cm (3.9 inches), data can be exchanged at three speeds: 106kbit / s, 212kbit / s or 424kbit / s. After understanding what the NFC function is, we have a more in-depth understanding of mobile payment, mobile card swiping and so on. Next, we will learn more about the application of NFC in detail.

NFC mode includes card simulation mode, peer-to-peer mode and reader / writer mode. NFC and Bluetooth are both short-range communication technologies, and they are integrated into mobile phones. But NFC doesn't need a complicated setup program. NFC can also simplify Bluetooth connectivity. NFC is slightly better than Bluetooth because the setup program is short, but it can't achieve the low power of blutooth. The maximum data transmission capacity of NFC is 424 kbit / s, which is far less than that of Bluetooth v2.1 (2.1 Mbit / s). Although the transmission speed and distance of NFC can't compare with Bluetooth, NFC technology doesn't need power supply. For mobile phones or mobile consumer electronic products, NFC is more convenient to use.

What is the function of NFC? What is the function of NFC

NFC is also superior to infrared and Bluetooth transmission. As a consumer oriented transaction mechanism, NFC is faster, more reliable and much simpler than infrared. It does not need to be aligned strictly to transmit data. Compared with Bluetooth, NFC is suitable for short-range transactions, and is suitable for the exchange of financial information or sensitive personal information and other important data; Bluetooth can make up for the lack of NFC communication distance, and is suitable for long-distance data communication. Therefore, NFC and Bluetooth complement each other and exist together. In fact, the fast and light NFC protocol can be used to guide the Bluetooth pairing process between two devices, which promotes the use of Bluetooth.

NFC is a wireless connection technology that provides easy, safe and rapid communication. Its transmission range is smaller than RFID. The transmission range of RFID can reach several meters or even tens of meters. However, NFC has the characteristics of short distance, high bandwidth and low energy consumption compared with RFID due to its unique signal attenuation technology. Secondly, NFC is compatible with the existing contactless smart card technology and has become a formal standard supported by more and more major manufacturers. Thirdly, NFC is also a close connection protocol, which provides easy, safe, fast and automatic communication between various devices. Compared with other connection modes in the wireless world, NFC is a kind of close range private communication mode. Finally, RFID is more used in production, logistics, tracking, asset management, while NFC plays a huge role in access control, public transportation, mobile payment and other fields.

What is the function of NFC? What is the function of NFC

Now the newly emerging NFC mobile phone has built-in NFC chip, which is part of the RFID module. It can be used as a passive RFID tag to pay for expenses; it can also be used as an RFID reader to exchange and collect data. NFC technology supports a variety of applications, including mobile payment and transaction, peer-to-peer communication and mobile information access. Through NFC mobile phones, people can connect with the entertainment services and transactions they want to get at any place, at any time, through any device, so as to complete payment, obtain poster information, etc. NFC devices can be used as contactless smart cards, smart card reader terminals and device to device data transmission links. Its applications can be divided into the following four basic types: for payment and ticket purchase, for electronic tickets, for intelligent media, and for data exchange and transmission.