I did a popular science report on NFC before. In order to prepare the report, I consulted some information and shared it with you here. Personally, I am relatively familiar with RFID technology, and the connection between the two technologies is generally described in the reply. When the iphone 5 was released, the configuration of its performance parameters received widespread attention. The new IOS6 supports LTE, as well as a larger screen and a thinner body. However, there is another point that has attracted everyone's attention, "no NFC"NFC, near field communication, its communication distance is generally considered to be within a few centimeters, theoretically within 20cm. In 2004, Nokia, Philips and Sony established the NFC forum origin.
In essence, NFC is an evolutionary technology of RFID. In 2004 and 2005, two protocol standards were released, namely ISO/IEC 18092: 2004ISO/IEC 21481: 2005. The above two protocols are derived from the earlier RFID protocol ISO/IEC 14443, which is the 13.56MHz RFID that is now more peer-to-peer. protocol standard. The second editions of the above two NFC protocols are ISO/IEC 18092: 2013 (NFCIP-1) ISO/IEC 21481: 2012 (NFCIP-2) NFC is compatible with Sony's FeliCaTM standard and Philips' MIFARE standard and other basic parameters You can refer to the Wikipedia entry for details, including the data transmission rate, communication mode, and working mode. The video of the NFC function demonstration of the Mi 2A mobile phone. I think it is the first time I have the most direct experience of NFC technology. I suggest friends who are interested. You can search and watch, very interesting. Of course, the earlier NOKIA has already done it. In 2006, the Nokia 6131 was the first mobile phone (not a smartphone, of course) to support NFC technology. In 2010, the Samsung Nexus S with Android 2.3 was the first Android phone to support NFC. At present, it is believed that NFC will have a wide range of applications in the field of mobile payment. I don’t know much about the specific debates here, so I dare not say more. I suggest that you can search widely. In July 2013, Beijing Mobile launched the "Mobile NFC Mobile Phone Card", which can be easily realized by swiping the mobile phone to take the bus, subway, and small purchases. I have also seen the promotion of China Telecom for Ebay. I don’t know whether the NFC mobile phone card of Beijing Mobile is the real NFC technology, but as far as I know, the form of YiPay should be in the form of RFID SIM, that is, its essence RFID technology, not NFC, because it does not integrate NFC hardware into the mobile phone, but only improves the SIM card, which can only realize the one-way communication function of the tag. The real NFC can realize three communication modes, that is, it can be used as a reader and a tag at the same time. Of course, it can also realize point-to-point communication like Bluetooth. Of course, its communication distance is very short. The communication rate is relatively low. Relatively speaking, NFC is characterized by its ultra-short connection time, which is generally considered to be less than 0.1s. Applications including smart posters can be easily implemented using NFC technology. We can see vending machines such as Weiluocheng and Youbao in many places. Now there are identifications that support RFID technology, and mobile payment attempts are also being made. If NFC technology can also be introduced for payment in the future, I think Think this will be more convenient and more secure and reliable. NFC can basically explain from its technical source that there is no future in theoretical research, and more should be promoted in application. It has matured and grown along with the protocol standard of RFID technology since its birth. During the preparation of the report, I feel that the prospect of NFC technology is very good, but there may be no special attention in the past year, and the voice about NFC on the Internet seems to be much smaller. A simple analysis of the reasons may be due to the rapid development of various identification technologies, such as fingerprint identification, which has been introduced by Apple, is squeezing the living space of NFC. However, I personally still feel that since giants like Samsung are already trying, and NFC also has its unique advantages, I think it still has a chance to usher in an explosion. Personally look forward to it.
