Four seas network: when it comes to NFC functions, it's obviously not a new word. At present, many smart phones, including Xiaomi and Huawei, have been equipped with NFC functions. In daily life, people usually use NFC to swipe bus cards, but their cognition of other functions is limited. So today, let's take a look at the practical functions of NFC.
NFC function large scale point what functions does NFC have in addition to swiping the bus card
First, let's understand what NFC is. NFC (near field communication). It is a kind of short-range and high-frequency wireless communication technology rising in recent years. Through NFC, non-contact point-to-point data transmission can be carried out between electronic devices. This technology is evolved from contactless radio frequency identification (RFID). It is developed by Philips and Sony. Its foundation is RFID and interconnection technology. At present, it has been applied in electronic payment, identity authentication, data transmission and other fields. Let's take a look at the specific application areas of NFC.
1. Swipe the bus card
This is one of the well-known functions of NFC. Many mobile phones use this function as their selling point. As long as you complete the relevant settings on the mobile phone, you can save a variety of troublesome operations, such as card handling, card carrying, etc. as long as you swipe in the bus swipe card area, you can take a bus, and you can recharge your mobile phone at the same time.
2 seconds to bank card
At present, many mobile phones support swiping cards with mobile phones, such as Huawei's "Huawei wallet" and Xiaomi's "Xiaomi wallet". After the bank card is bound in the app, swipe the bank card directly with the back of the mobile phone close to the POS machine. And it can also be used where there is no network, which is a big advantage of NFC compared with QR code payment.
3. Swipe the access card
This requires that NFC mobile phones have the function of 'card learning'. That is, learn the original access card through mobile phone. If the access card is not encrypted, you can record the information of the card on your mobile phone. Next time you go home, you can directly use your mobile phone to brush the access card, and you don't need to bring the card. Of course, some access control systems with strict confidentiality and high security will encrypt the access cards, and may not be able to 'learn', which is also for the sake of everyone's security.
4. Mutual documents
We all know that you can use Bluetooth to transfer files. In fact, NFC function can also be used for Bluetooth transmission. As long as two mobile phones with NFC function turn on NFC function, the back of the mobile phone can be transmitted in seconds without pairing, which is faster and more convenient than Bluetooth. However, it is recommended to transfer some smaller files, because the transfer speed is limited.