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What is nfc(3)
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Transcript

  • 1. Presented By SK. Fahad
  • 2. What is NFC• NFC is a short-range wireless technology.• NFC provides unique advantages over other available wireless technologies.• The design includes a near-field transmitter and receiver to send data from one computer to another
  • 3. How NFC Works :NFC is based on RFIDtechnology that usesmagnetic field inductionbetween electronicdevices in closeproximity. For twodevices to communicateusing NFC, one devicemust have an NFCreader/writer and onemust have an NFC tag.
  • 4. Benefits & Features:• Not restricted to 1-to-1 communication• Multiple devices in a small area can communicate with each other using the same frequency.• Maximum transfer bit rate of 800kbps.• No special software is required.• Operation at a frequency of 13.5 MHz• No ethical concerns due to range
  • 5. ApplicationSocial networking:NFC can be used in socialnetworking situations, such as sharingcontacts, photos, videos or files, and enteringmultiplayer mobile games.
  • 6. ApplicationPayment by NFC:Instant payments and coupon deliveryusing your handset, as we do withyour credit card or debit card.
  • 7. ApplicationIdentity documents:The NFC Forum promotes the potential for NFC-enabled devices to act as electronic identitydocuments and keycards. As NFC has a short rangeand supports encryption, it may be more suitablethan earlier, less private RFID systems.
  • 8. Bluetooth Low Aspect NFC Bluetooth EnergyRFID compatibl ISO 18000-3 active active eStandardisation ISO/IEC Bluetooth SIG Bluetooth SIG bodyNetwork Standa ISO 13157 etc. IEEE 802.15.1 IEEE 802.15.1 rd Network Type Point-to-point WPAN WPAN Cryptography not with RFID available available ~100 m (class Range < 0.2 m ~50 m 1) Frequency 13.56 MHz 2.4–2.5 GHz 2.4–2.5 GHz Bit rate 424 kbit/s 2.1 Mbit/s ~1.0 Mbit/s Set-up time < 0.1 s <6s < 0.006 s < 15 mA Power varies with < 15mA (read) (transmit or consumption class receive)
  • 9. Comparing with other wirelesstechnology:
  • 10. Disadvantages:•Data transfer rate is small comparedto blue tooth and other wirelesscommunications.•No protection in data modification.•No protection in eavesdropping.