near field communication
DESCRIPTION
TRANSCRIPT
![Page 1: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/1.jpg)
NEAR FIELD COMMUNICATION
Presented By:Dheeraj Raja
![Page 2: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/2.jpg)
What is NFC??? • A short range, high frequency, low bandwidth and wireless
communication technology between two devices.• Based on RFID Technology.• Mainly aimed for mobile & handheld devices.
![Page 3: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/3.jpg)
Evolution of NFC• 2002- The technology was jointly developed by
Philips & Sony.• 2004- Nokia, Philips and Sony established the NFC
Forum.• 2006- Initial specifications for NFC tags are given.• 2006- Nokia 6131 was the first NFC enabled Phone.• 2010- Samsung Nexus S was the first Android NFC
enabled Phone.
![Page 4: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/4.jpg)
Working Principle• NFC works on the principle of RFID (Radio Frequency
Identification).• Types of Coupling in RFID:
BackScatter Coupling Capacitive Coupling Inductive Coupling.
![Page 5: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/5.jpg)
Operation Of NFC
• Near field communication is based on inductive-coupling.
• NFC works using magnetic induction between two antennas located within each other's 'near field’.
![Page 6: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/6.jpg)
Modes of Operation
![Page 7: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/7.jpg)
Modes Of Operation
• In Active mode, both devices with NFC chip generates an electromagnetic field and exchange data.
Two NFC enabled devices transfer-ring data in active mode
![Page 8: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/8.jpg)
Modes of Operation• In Passive mode, there is only one active device and
the other uses that field to exchange information.
A NFC-enabled mobile phone is paired with a RFID-tagged "smart poster"
![Page 9: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/9.jpg)
Applications of NFC
• NFC applications can be split into the following three basic categories:
Touch and GoTouch and ConfirmTouch and Connect
![Page 10: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/10.jpg)
Applications Of NFC• Touch and Go Applications such as access control or transport/event
ticketing, where the user needs only to bring the device storing the ticket or access code close to the reader. Example for picking up an Internet URL from a smart label on a poster.
Touch and go Mode of application
![Page 11: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/11.jpg)
Applications Of NFC• Touch and Confirm Applications such as mobile payment where the user has to
confirm the interaction by entering a password or just accepting the transaction.
![Page 12: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/12.jpg)
Applications Of NFC• Touch and Connect
Linking two NFC-enabled devices to enable peer to peer transfer of data such as downloading music, exchanging images or synchronizing address books.
Data transfer via NFC
![Page 13: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/13.jpg)
NFC Specifications
• NFC operates at 13.56 MHz and at rates ranging from 106 kbit/s to 424 kbit/s.
• NFC always use an initiator and a target; the initiator actively generates an RF field that can power a passive target.
Initiator Device
Target
![Page 14: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/14.jpg)
Comparison with Existing Technology
![Page 15: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/15.jpg)
Advantages Of NFC
• High convenience to the user, because the data exchange is done by bringing two mobiles together.
• Secure communication. • No special software. • No manual configuration and settings.• No search and pair procedure.
![Page 16: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/16.jpg)
Limitations Of NFC
• The system has the limitation that it can be operated only with devices under a short range i.e around 10 cm.
• The data transfer rate is very less at about 106kbps, 212 kbps and 424kbps.
![Page 17: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/17.jpg)
Some Devices using NFC Technology
• Nexus S• Google Nexus S 4G • Samsung Galaxy S II • Samsung Galaxy Note • Galaxy Nexus• Nokia 6212 Classic• Nokia 6131 NFC
![Page 18: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/18.jpg)
Devices with NFC Technology
![Page 19: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/19.jpg)
Future of NFC• New generations of iPhone, iPod and iPad products
would reportedly be equipped with NFC capability which would enable small-scale monetary transactions.
• Recently, Microsoft announced that all Windows 8 Phone devices will make use of the NFC technology.
![Page 20: Near field communication](https://reader035.vdocument.in/reader035/viewer/2022062616/54b6eb714a7959ff2d8b4669/html5/thumbnails/20.jpg)