Skip to main content

What is Near Field Communication: Explained

NFC i.e. Near Field Communication is a way of communication between two electronic devices one among which is mostly a portable device such as smartphones. These devices can communicate with each other when brought within 4 cm of range. NFC is being used in various ways such as sharing photos,  making mobile payments, getting information of posters etc. This process requires atleast one of the devices involved to have internet access.

This is a short distance wireless mode of communication which involves two devices : Active device and Passive device.

The NFC device can work in three modes:
- NFC peer-to-peer
- NFC reader/writer mode
- NFC card emulation

NFC peer-to-peer:
In this both the devices are active devices that is both devices generates radio waves through which they communicate with each other. Only one device generates radio waves at a time and receiver connects to it and receives the shared files and when another device is active the first one does not generate the signals. The radio waves are generated at the carrier frequency of 13.56 Mhz.

NFC Reader/Writer:
In this one device is active and other device is passive. In this user access the information from the NFC tag using Smartphones. Active device reads/writes the data to NFC using the principle of electromagnetic induction. NFC device sends the radio waves at carrier frequency of 13.56 Mhz. Whenever the active device is brought withing the range it generates radio waves which are detected by the chip in passive device which in turn generates power for chip and activates it for transferring the information stored in it. Once the device is powered up the chip responds back by the technique known as Load Modulation. In this technique the tag uses internal clock of chip and generates auxiliary frequency of 848 khz.

NFC Card emulation:
This is similar to NFC reader/writer in which one device is portable such as smartphones and are mostly used for making mobile payments. Both the devices involved are active devices. In this our smartphone work as passive smart card, therefore do not generate radio waves and responds back to requested data by payment terminal. Its operating principle is similar to reader/writer mode.

Various Applications of NFC:
NFC is being used for profile sharing, pairing different devices, mobile payments, information sharing using smart posters and business cards, home automation, health care, library systems and personal usage etc.
Just by using NFC brightness of embient lights in room can be changed. It can be used for changing the temperature of the AC as well as in auto close doors.

Comments

  1. You wrote a great blog post explaining about Near Field Communication. I hope to read more blog from you in the future. NFC Tagify is one of the leading NFC products and services providers in the UK. NFC Tagify offers contactless NFC tags, PVC business cards, NTAG stickers, chips, anti-metal/on metal and many customised NFC products. NFC Tagify manufacture products to comply with NFC Forum specifications. NFC Tagify also offers NFC tag encoding in bulk.

    ReplyDelete

Post a Comment

Popular posts from this blog

How IoT will impact online gaming industry.

Internet of Things, also known as IoT, is a hot tech that is on everybody’s lips. It is a network of physical devices such as vehicles, home appliances and other electronic devices through internet connectivity which enables these objects to connect and exchange data. There are endless opportunities in IoT, when you start connecting things with things, humans with humans, or humans with things. Nowadays this hot tech has become an important part of our lives. Companies are earning huge amount of money by connecting devices and their revenue chart have skyrocketed. Gaming industry is one of the major industry which is impacted by IoT, and it’s most significant impact is on online gaming, whether they are consoles or online gambling. Impact of IoT on Casinos: One of the key area which has flourished over time is gambling industry. Online casinos have been effected by the growth of IoT. Playing poker or blackjack remotely without going to the casinos is of huge advantage as peop...

How to make Explosion Box

This is something which is more attractive and breathtaking to be given as a gift, the Explosion Box. As the name explains, it explodes with a lot of things in it on opening. It includes various items in it which adds to its beauty. If you are a crafts person, then you are going to love this. Grab your scissors and papers and try your hands on this. Be ready with these: - a pair of scissors - colored sheet of paper Follow these steps: 1. Take a sheet of paper of size 9cm X 9cm as shown in figure i. 2. Now fold inward at gap of 3cm in both directions horizontally and vertically as shown in figure ii. 3. Make diagnal folds outward as shown in figure iii and keep this aside. 4. Now take another sheet of paper of dimensions 8cm X 8cm and repeat step 2. 5. Cut along the edges marked in yellow in figure iv. 6. After cutting, place the pink portion marked in figure v over the yellow portion and paste making a pocket and figure will appear like figure vi. 7. Take one more sheet...

Bitcoin vs Dogecoin: All you need to know about these cryptocurrencies

Cryptocurrencies have been a hot investment from past 12 months. Nowadays everyone is keen to invest in cryptocurrencies due to their high return values and Dogecoin has increased tremendously, it was created as a meme cryptocurrency, started as a joke in 2013, featuring a Shiba Inu dog and it has emerged as a tough competition to the cryptocurrency giant Bitcoin. The recent rise of Dogecoin has been fueled by tweets of Tesla CEO Elon Musk and other celebrities. The Origin It all started in 2009 when a person named Satoshi Nakamoto created Bitcoin. After some time the white paper was published providing details regarding how Bitcoin could be used to build a new financial system and reduce the transaction costs by eliminating the need for financial institutions. In 2013 the Dogecoin was created as a jest. There was also a tweet by Adobe employee quote "Investing in Dogecoin, pretty sure it's the next big thing." At the time, Dogecoin didn't exist and his comment poked ...