NFC is an abbreviation for Near Field Communication, Chinese called Near Field Communication Technology. Today Hi Rent will give you a look at NFC, I hope to be able to help you.
Hi rent first take you to understand the working principle of NFC, NFC by Sony and Philips in 2003 joint development, a non-contact identification, interconnection, distance within 10cm of short-distance communication technology, running frequency of 13.56MHz, transmission speed of 106Kbit / s, 212Kbit / and 424Kbit / s three, through electromagnetic induction coupling for information transmission. After understanding the working principle, let's talk about how NFC can help our daily lives.
Access control card: With the popularity of electronic door locks, the key is not a necessary item to go out, the probability of forgetting to bring an access control card is getting higher and higher, if you forget to bring it one day, you can only wait at the door when you go home, but fortunately, today's mobile phones will have NFC functions, we only need to simulate the information of the access control card in advance to the mobile phone, you can use the mobile phone to open the access control, this is really super practical, after all, no one should go out and forget to bring the mobile phone, right?
Bus, subway card: compared to the access control card, bus, subway card forget to bring or lose the probability is higher, although now the bus will basically have a ride code, but every time to go to the point is still more troublesome, and the subway generally does not support the brush ride code, can only go to buy a one-way ticket, if you encounter the rush hour, it is inevitable to wait in line, but after using NFC, these problems can be solved; Not only that, when the physical bus and subway cards need to be recharged, they can also be realized through the NFC function.
Mobile payment: Similarly, you can use the NFC function to simulate the bank card in advance, when we only need to put the mobile phone in front of the POS machine after shopping, we can use the bank card to pay, which is convenient and fast.
The above is the scene that we often use in our daily life, but the function of NFC is not limited to this, and we need to explore and use it by ourselves. Today Hi Rent will take you to understand these, the next issue, Hi Rent will continue to take you to understand other relevant knowledge of mobile phones.