Can Nanjing subway bus brush NFC?

You can brush your mobile phone NFC. But the mobile phone should have NFC function.

The NFC function of a mobile phone can select one of the transmission speeds of 106 kbps, 2 12 kbps or 424 kbps to send data to another device. Another kind of equipment is called target equipment (slave equipment), which does not need to generate RF field, but uses load modulation technology to send data back to the initiating equipment at the same speed.

The NFC function of mobile phone exchanges data in active and passive ways. In passive mode, the device that starts near-field communication, also called the initiating device (master device), provides a radio frequency field (RF field) during the whole communication process.

The NFC function of the mobile phone is in active mode, and both the initiating device and the target device have to generate their own RF fields for communication.

You only need the support of the mobile phone card, and you can swipe the bus card without the network. But your mobile phone must have NFC function to work properly. If the phone is turned off, it won't work. Once the phone is turned off, it will not generate its own RF field.

Extended data

The application of NFC technology in mobile phones mainly includes the following five categories:

1. Contact passes, such as access control, tickets, etc. Users only need to store tickets or access control passwords near the card reader, which can also be used for logistics management.

2. Contact payment, such as contactless mobile payment, allows users to pay by placing the device near the POS machine embedded with NFC module and confirm the transaction.

3. Contact connection, such as connecting two NFC devices for point-to-point data transmission, such as downloading music, exchanging pictures and exchanging address books.

4. Contact browsing, users can connect NFC phones to smart public telephones or street posters with NFC functions to browse traffic information.

5. Download contacts, users can receive or download information through GPRS network for payment or access control and other functions.

Baidu encyclopedia-NFC mobile phone

Baidu Encyclopedia-Near Field Communication