For the term NFC, many people may not be very familiar with it, but often it is often seen in the mobile phone pull-down shortcut switch. Why do many mobile phones are equipped with NFC function, and what is the use of NFC? And listen to Xiaobian to give you a closer look.
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What is NFC?
NFC is the abbreviation of Near Field Communication, which is near field communication, which is a short-distance data transmission technology. It is one of the mainstream short-range communication technologies. This function has advantages and disadvantages compared with traditional Bluetooth and infrared data transmission functions. NFC has the characteristics of fast transmission speed, strong security performance and low power consumption. The combination of inductive readers, inductive cards and point-to-point functions on a single chip using NFC near field communication technology enables identification and data exchange with compatible devices over short distances. In addition, NFC has both active and passive read modes.
In fact, the items that use NFC technology exist in our lives. The bus cards necessary for commuting, the access cards used in and out of the community, the credit cards and pos machines that support flash payment, and the new train tickets are all NFC technology. product.
Where is the current mobile phone NFC widely used?
Nowadays, many smart phones are equipped with NFC chips. This seemingly inconspicuous function can bring convenience to all aspects of our lives.
data transmission
As early as the Android 4.0 era four years ago, NFC functionality was integrated into the native Android system. The back-to-back Android Beam near-field transmission function only requires two NFC phones to be connected together to transmit data through NFC. Compared with Bluetooth, a series of matching steps are saved, which is very convenient and fast.
Public transit
The bus card we use every day is actually an NFC chip, so the mobile phone with NFC function can also read the bus card. Not only can you check the bus card balance and consumption record, but also recharge the new bus card in recent years, eliminating the trouble of queuing at the recharge point. Even in some cities where public transport facilities have opened NFC payments, you can directly use the mobile phone to brush the bus, and even the card is not used.
Mobile payment
Compared with the popular QR code scanning payment, NFC is superior in security, not only non-replicable, but also does not obtain user private information. At the same time, the payment experience is more convenient and easy to use than the two-dimensional code. And as long as there is a place to support the UnionPay flash POS machine, you can simulate swiping, even in places where there is no network.
Internet of Things
In the Internet of Things, NFC's function is to connect mobile phones with other NFC-enabled products, such as home routers, which can be connected to Wi-Fi when you are close to it; some Bluetooth speakers can also be connected via NFC.
Property management
Many smartphones with NFC function also have the function of card learning. After learning the original access card, you can use the mobile phone to brush the door, eliminating the steps of Leica. However, in order to prevent people with ulterior motives from using the NFC function to steal cards, the access card is still safe to keep.
What mobile phones are currently available on the market with NFC?
In fact, since Android 4.0, Google has paved the way for various applications of NFC, but at the time NFC did not have much room for display in China, so there was no large-scale popularization, and there were very few mobile phones supporting NFC on the market. In the era of Android 7.0, whether it is a local domestic brand or a foreign brand, we can see NFC in the price machine with a price of only a thousand pieces. Today, with the booming mobile payment, the popularity of NFC is no longer the same.
Although each manufacturer has its own NFC phone, it has different main functions. For example, although Apple has been equipped with NFC chips since the iPhone 6, its NFC function can only be used for Apple Pay, and most of the NFC applications mentioned above cannot be used. Samsung can not only use Samsung Pay, but also use other features with the support of third-party applications. Xiaomi integrates “full-featured NFC†in the system, which not only supports mobile payment in the native, but also can be used as a bus card.
Seeing this, is it very important to try to use NFC-enabled mobile phones to try out various functions, or to change to an NFC-enabled mobile phone? In fact, Xiaobian seems to say that mobile phones without NFC are not critical at present. After all, mobile phones are essentially communication tools, and these features are just a icing on the cake. Perhaps after two years of support for NFC in various social infrastructures, it will become the “standard†for major mobile phones.
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