What is NFC unlocking?

NFC unlock? I believe that many people are still very strange to hear the word for the first time, and they don't even know what it means. The full name of NFC is Near Field Communication, which is also called "near field communication". The straightforward point is that communication technology can only be used at close range. This technology was invented by Philips and Sony as early as 2003. There are already many application scenarios in China, such as public transportation and subway mobile payment in some cities. But the application of NFC technology with smart locks has been a matter of the past few years.

NFC mainly has two modes, one is active mode, in which NFC terminal can recognize and read NFC information; one is passive mode, in which NFC terminal is similar to subway card, other reading The device can read its information. The smart lock uses NFC technology to read the mobile phone information and then unlock it. The essence of the lock is not much different from the card unlocking, just turning the card into a mobile phone. The smart lock adopts this connection method, which can bring a lot of convenience to the mobile phone family.

Why didn't smart locks have previously adopted NFC-style unlocking on a large scale? Europe, Japan, South Korea and other countries do not require networking when using smart locks. According to the truth, NFC will have greater demand. The fact is that they have adopted Bluetooth on a large scale. This is mainly because Bluetooth can be used at a greater distance, and NFC must be close to unlock, Bluetooth transmission rate is much higher than NFC, and also supports multi-point transmission. Although NFC saves electricity and is very efficient to use, its disadvantages are too obvious. In addition, due to the high cost of early promotion, its use range is much smaller. In the field of domestic smart locks, not only fingerprints, passwords, and Bluetooth are added, but also identification methods such as networking, face, finger artery, and iris have been added. NFC is not so important in the face of fingerprint and networking.

So is NFC necessary for use on smart locks? NFC has an advantage in saving power and opening smart locks efficiently. The mobile phone has become an unlock card, making it easier for people who don't leave their mobile phones. In general, NFC's application scenarios are still many, and the prospects are also very large. Mobile phone NFC unlocking as a new unlocking method for smart locks can also bring a More convenient life experience for everyone, which is worthy of recognition.