Near Field Communication (NFC) is a small-range high-frequency wireless communication system, which allows the exchange of information or data within devices such as smartphones and tablets, up to 10 cm distance.
The communication system in NFC allows the transform of information over NFC compatible devices without requiring to touch the devices at once or by setting up the connection through multiple steps.
NFC maintains interoperability within various wireless communication systems such as Bluetooth and other NFC standards like Felica, famous in Japan through the NFC Forum.
Fast, secure and convenient NFC system is popular in different areas of Asia and Europe and is growing speedily over the United States.
How does NFC work?
The technology involved is deceptively simple. Evolved from radio frequency identification system, an NFC chip functions as a way of the wireless link. After activating this by another chip, amounts of information within two devices are accessible.
NFC follows the inductive coupling principle, where electrons move through conductors generating a magnetic field, while change occurs in a magnetic field, it can generate an electric field, this process is called inductive coupling.
RFID chip works on the mechanism of inductive coupling, RFID is an electronic chip, which includes some specific information related to it. While we take RFID tags near to magnetic field, it induces electricity with tag. The changing in the field then identified by the reader and decoded to interpret the information secured in the RFID tag.
If we are using RFID tag that needs to put nearby to activate, this is passive RFID. And if the RFID tag also contains Power source, it is active RFID tag.
Active RFID has more storage capability and range, however, RFID is only a single way communication, the same principles uses by NFC but it also provides two-way communication.
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Source: slideshare
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Features of NFC
Interactivity
Different applications of mobile phones such as a screen, sound, vibration, touch etc. turn NFC services interactive.
Remote Multi-Application Management
With a mobile network, benefits like customization, download, and opening/blocking are included to multi-application maintain system used in contactless cards.
Remote user management
NFC services records and send private messages via its user management functions.
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Source: programming
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Applications of NFC
Healthcare
Managing patients are one of the challenging jobs for a hospital to maintain patient easily with their regular treatment, prescribed medications etc. can handle by the use of NFC.
Travel
NFC technology facility to reduce the hassle of flying, smartphones act as identification and to handle plane tickets with all in one facility including extra facilities to the customer. Even passports can one day be stored in your smartphone.
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Advertisers can use NFC as advantages to transmitting information, deal with customers. An ad can contain link of the website, purchase properties and management of price.
Security Identification
Homeowners can implement the lock system to provide access to specific persons by using NFC reader functionality. Also, the organization can provide the secure access to employees on office or to their computers.
Also, see
What Is Li-Fi Technology? What Are The Reasons Behind Its Popularity than Wi-Fi?
What is RFID (Radio Frequency Identification)? Find out its Applications