NFC Explained :-How does it work?


A lot of smartphones these days come with NFC technologies.NFC has enabled a lot of possibilities from data sharing to payments. So in this article let's understand what is NFC? and How it works?

What is NFC?
NFC stands for Near Field Communication and it basically helps compatible devices share data and communicate within a short-range. It requires at least one transmitting device, and another to receive the signal. A range of devices can use the NFC standard and will be considered either passive or active.

Passive NFC devices include tags, and other small transmitters, that can send information to other NFC devices without the need for a power source of their own. However, they don’t process any information sent from other sources, and can’t connect to other passive components. These often take the form of interactive signs on walls or advertisements.

Active devices are able to both send and receive data and can communicate with each other as well as with passive devices. Smartphones are by far the most common form of active NFC device. Public transport card readers and touch payment terminals are also good examples of the technology.

How does it work?
Now that we know what is NFC, let's understand how it works.NFC is very much like RFID but limited to 4 inches. That is why you have to hold your phone close to the contactless reader of you are using it for Payments through Apple Pay or Samsung Pay. It evolved from radio frequency identification (RFID) tech, an NFC chip operates as one part of a wireless link. Once it's activated by another chip, small amounts of data between the two devices can be transferred when held a few centimeters from each other.

The transmission frequency for data across NFC is 13.56 megahertz. You can send data at either 106, 212, or 424 kilobits per second. That’s is quick enough for a range of data transfers — from contact details to swapping pictures and music. To determine what sort of information will be exchanged between devices, the NFC standard currently has three distinct modes of operation. Perhaps the most common use in smartphones is the peer-to-peer mode. This allows two NFC-enabled devices to exchange various pieces of information between each other. In this mode, both devices switch between active when sending data and passive when receiving.

Read/write mode, on the other hand, is one-way data transmission. The active device, possibly your smartphone, links up with another device in order to read information from it. NFC advert tags use this mode. The final mode of operation is card emulation. The NFC device can function as a smart or contactless credit card and make payments or tap into public transport systems.

Where can it be used?

NFC is being used in credit cards, debit cards, mobile phones, and even smartwatches for easy and fast contactless payments. There's also Android Beam, which was implemented way back in 2011 in Android Ice Cream Sandwich 4.0 as a nifty, simple process that allows for the transfer of photos, contacts, and directions by holding two phones together.Many tech accessories like Speakers and headphones use this to quickly pair up with your phone.NFC is being used at many places and could revolutionize the transportation sector where one can board a train or a flight just using NFC as well as pay for different things.the applications are endless and individuals can deploy NFC using NFC tags for all kinds of things




Location: India

Comments

  1. Nfc TubeMay 24, 2021 at 4:58 PM

    Thankyou , your blog Is great I enjoyed reading it, for more info on NFC Business cards, you can visit our website as well

    ReplyDelete

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