Everyone should be familiar with NFC. Even if you haven’t used it in daily life, you may have heard of it. With the continuous development and popularization of NFC technology, more and more smart phones have added this function. Then, NFC What exactly is the function? What are the benefits?
What is the NFC function?
NFC is the abbreviation of Near Field Communication, which is short-range wireless communication technology. It is a wireless technology initiated by Philips and jointly promoted by famous manufacturers such as Nokia and Sony. Data transmission is carried out through electromagnetic waves. The reader emits radio frequency waves. After NFC senses the radio waves, it reflects a signal with information. Captured by the reader for identification. Combining the functions of inductive card reader, inductive card and point-to-point on a single NFC chip, it can identify and exchange data with compatible devices within a short distance, allowing smart devices to exchange data by approaching each other, or Communicate with a passive NFC tag. It has been widely used in smart phones, computers, smart homes and other equipment.
NFC application scenarios
The application of NFC communication technology has been very extensive. When NFC was just popularized in the early days, it was more used for file transmission, and two mobile phones could complete data exchange back to back. So far, NFC technology has been widely used in mobile payment, transportation, smart door card/car key, smart home and other aspects.
1. As a bus and subway card
After adding and binding the local transportation card to the mobile phone, the NFC function can usually be turned on to take the bus or subway instead of swiping the bus card. At present, this function is more commonly used on Android phones. Because Apple phones only support transportation cards in some cities, It is relatively uncommon to use.
2. Access card
The access control card (IC card, ID card) that supports NFC information exchange can bind the card information with the mobile phone that supports nfc, and then you can use the mobile phone to swipe the access control.
3. Bank card mobile payment
Add a bound bank card to your mobile wallet and use your mobile phone as a bank card. As long as you use a POS machine marked with UnionPay QuickPass, you can pay by swiping your mobile phone without a bank card.
4. Similar to Bluetooth function
Many smart bracelets and Bluetooth speakers also support NFC. The most convenient way to use NFC is to use the NFC module on the back of the mobile phone to align the bracelet and the NFC identification module on the speaker to automatically pair and connect. , no other complicated settings are required, simple and fast.
5. Point-to-point transmission
Turn on the NFC function of the mobile phone, select the files, pictures and other data to be transferred, and the two mobile phones can be transferred by touching them (both sides need to support NFC). However, the premise is that the two mobile phones must be close to within 5CM, but because the transmission speed is too slow and the distance is too short, there is still a big gap with Bluetooth, and this function also tests the compatibility between users’ mobile phones.
6. Information browsing function
NFC can also be used for product authenticity identification. Anti-counterfeiting of expensive luxury goods such as wine. Using “one-core dual-frequency” technology, consumers can scan NFCA tags to identify authenticity and obtain more detailed product information; when shopping in large shopping malls (NFC-enabled), they can also use the NFC function to inquire about a shopping mall Various promotional information, product location and price information.
Although the application of NFC technology has brought great convenience to people’s daily life, there is also a certain degree of sharing. Everyone must pay attention to protecting personal information and property safety when using it.
