What is NFC used for? How to use the NFC function of your phone

What is the function of NFCBefore explaining to you what the function of NFC is, let's talk about what NFC is. In fact, NFC is a kind of near-field communication technology, and to put it more bluntly, it is a short-range wireless communication technology. NFC enables short-range wireless communication between mobile devices, consumer electronics, and other tools, allowing direct exchange of information, access to content, and more.

NFC on many smartphones can only be used for exchanges and other operations at present, and because NFC is not popular enough, it is estimated that it will take some time for the vision of using NFC as an e-wallet to be realized. How to use the NFC function of the mobile phone? Below, Judun security engineers will introduce to you what functions may appear in NFC in smartphones in the future.

NFC devices are mainly used in mobile phone applications, and there are currently five main types of NFC technology used in mobile phones.

1.Access passes, such as access control, tickets and tickets, where the user can store the ticket or access code, close the device to the card reader, and can also be used for logistics management.

2.Contact-based payments, such as contactless mobile payments, allow users to place their devices close to a POS machine embedded with an NFC module to make a payment and confirm the transaction.

4.Contact browsing, users can connect NFC mobile phones to smart public utilities or posters with NFC functions on the street to browse traffic information, etc.

5.**Contact, the user can receive through the GPRS network or ** information for payment or access control functions, as mentioned above, the user can send a specific format of text message to the domestic helper's mobile phone to control the housekeeper's access to and from the home.

What is the use of the NFC function of the mobile phone?

The NFC function of the mobile phone can be used in the following aspects: Mobile payment: Through NFC technology, users can bind payment tools such as bank cards or e-wallets to the mobile phone, and complete fast and convenient payment operations in merchants that support NFC.

Access control: Some companies, schools, or public places use NFC technology to achieve access control, and users only need to swipe their mobile phones to enter. Data Transfer:

Data can be transferred very quickly between two NFC-enabled phones, such as sharing**, **, **, etc. Clock-in: In some cases, employees need to perform operations such as clock-in and clock-in through NFC reading devices to ensure the accuracy of attendance records.

NFC is a kind of near-field communication technology, with the progress of science and technology, the NFC chip is implanted into the mobile phone, with the cooperation of software, mobile payment, access control and other functions can be realized.

1. First open "Settings" and enter the settings interface.

2. Find the "Connect & Share" option, click and enter.

3. Swipe up the page to find the NFC function, and put the NFC function on.

<>5. Enter the software, you will see "Xiaomi bus", "Xiaomi door card", "mi pay" three functions, through the ** card or binding their own access control and bank card, you can use the mobile phone to swipe the card to take the bus, the mobile phone swipe card to open the door, the mobile phone card to withdraw money and other functions.

NFC stands for Near Field Communication technology, which enables short-range wireless communication between mobile devices, consumer electronics, PCs, and smart control tools, and NFC functions can be used without the assistance of other accessories. How to turn on NFC on vivo phone: Go to phone settings - other networks and connections - turn on the switch of "NFC".

If this switch is not available, it means that the model does not support NFC).

What is the NFC function of a mobile phone used for? How does it work?

What is the NFC function of a mobile phone used for? How does it work? Dear, hello, 1 first of all, NFC working mode has card mode, peer-to-peer mode and card reader mode.

NFC and Bluetooth are both short-range communication technologies, and both are integrated into mobile**. What is Mobile NFC? How does it work?

2 Then NFC slightly outperforms Bluetooth in that the setup procedure is shorter, but it can't reach the low power of Blutooth. The maximum data transfer capacity for NFC is 424 kbits, which is much smaller than Bluetooth (Mbits). Although NFC is not as fast as Bluetooth in terms of transmission speed and distance, NFC technology does not require a power supply, and it is more convenient to use NFC for mobile** or mobile consumer electronics.

What is Mobile NFC? How does it work? 3. Next, NFC is also superior to infrared and Bluetooth transmission methods.

As a consumer-facing transaction mechanism, NFC is faster, more reliable, and much simpler than IR, eliminating the need for strict alignment to transmit data like IR. Compared to Bluetooth, NFC is oriented towards proximity transactions and is suitable for exchanging important data such as financial information or sensitive personal information; Bluetooth can make up for the shortcomings of NFC communication distance and is suitable for long-distance data communication. 4 Then NFC is compatible with existing contactless smart card technology.

NFC is also a proximity connectivity protocol that provides easy, secure, fast, and automated communication between devices. Compared to other means of connectivity in the wireless world, NFC is a means of private communication in close proximity. What is Mobile NFC?

How does it work? 5Finally, NFC devices can be used as contactless smart cards, reader terminals for smart cards, and device-to-device data transmission links, and their applications can be mainly divided into the following four basic types: for payment and ticket purchase, for electronic tickets, for smart **, and for exchanging and transmitting data.

Simulate a contactless card, such as an access card, bank card, etc. The card simulation mode is mainly used in contactless mobile payment applications such as shopping malls and transportation, where users only need to hold their mobile phone close to the card reader and enter the password to confirm the transaction or receive the transaction directly. In this way, the card is powered by the RF domain of the contactless reader, which can work even if the NFC device is out of power.

In this application mode, the NFC reading device collects data from the NFC mobile phone with TAG capability, and then transmits the data to the application processing system for processing, and typical applications based on this mode include local payment, access control, electronic ticket application, etc.

The use of NFC function, taking Xiaomi mobile phones as an example, the specific steps are as follows:

1. On the main page of the phone, find the icon of "Settings" and click to enter.

<>3. Among the listed functions is the NFC module, which opens the NFC of the mobile phone and displays the ability to exchange data when the mobile phone is in contact with other devices. Some of the options at the bottom also change from gray to black when opened.

4. When NFC is used in the wallet, you can choose the default wallet, for example, you can set this option when you use the payment.

5. Touch Payment. Select those apps that can pay using this method.

6. Turn on the Android bean, which can be turned on or not. Used to share content between two devices.