2016年9月28日星期三

What is NFC ?



NFC operating modes have the card mode (NFC business card emulation), point to point mode (P2P mode) and the NFC card reader mode (Reader / writer mode). NFC and Bluetooth is short-range communication technology, and are integrated into mobile phones. But NFC does not require complicated setup procedures. NFC also simplifies the Bluetooth connection. NFC Bluetooth slightly better place is shorter setup, but can not reach the low-power Blutooth. NFC maximum data transfer is 424 kbit / s is much smaller than Bluetooth V2.1 (2.1 Mbit / s). Although NFC in transmission speed and distance smaller than Bluetooth, but NFC technology does not require power supply, mobile phone or mobile consumer electronics products,, NFC's more convenient to use.


Compare NFC business card with RFID smart card

NFC business card is a method of providing easy, safe, fast wireless connectivity communications, transmission range is smaller than RFID card, RFID transmission range can reach several meters or even tens of meters, but because NFC card took a unique signal attenuation technology, as opposed to RFID for NFC have from the past, high bandwidth, low energy consumption. Secondly, NFC with existing contactless smart card technology compatible, has become more and more major vendors support the official standard. Again, NFC contactless is a short-range connection protocol, providing a variety between devices easy, safe, fast and automated communications. Compared with other wireless world connectivity, NFC business card is a short-range of private communications. Finally, RFID card is applied more in production, logistics, tracking, asset management, and NFC business card is in access control, public transportation, and other areas of mobile payment plays a huge role.

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