NFC ( Near Field Communication )

NFC ( Near Field Communication ) by Philips and Sony Company jointly developed by NFC is a non-contact recognition and Internet technology, on mobile devices, consumer electronics, PC and intelligent control instrument for the short distance wireless communication. NFC provides a simple, touch solutions, so that consumers can easy to exchange information, access to the content and services.

Summary

Near field communication ( Near Field Communication, NFC ), also known as the short distance wireless communication, is a short range high frequency wireless communication technology, to allow electronic equipment for non-contact point to point data transmission ( to within ten cm ) data exchange. This technique consists of a contactless radio frequency identification ( RFID ) evolved, and downward compatibility to RFID, first by Philips, Nokia and Sony advocate push, mainly for mobile phone and other handheld devices in may. Due to the near field communication with natural security, therefore, NFC was found in areas such as mobile phone payment has great application prospects.

NFC non-contact card reader, card and peer-to-peer ( Peer-to-Peer ) functions into a single chip, as the consumer lifestyle created too many to count the new opportunity. This is an open platform for wireless network interface, can be fast, active set, as well as virtual connector, services in the existing honeycomb network, Bluetooth and wireless 802.11 equipment.

NFC compatible with Sony's FeliCaTM card and has been widely established contactless smart card architecture, the architecture based on ISO 14443 A, use the Philips MIFARE? Technology. In order to promote the development and popularization of NFC, Philips, Sony, Nokia has created a non-profit industry association -- the NFC forum, promote the implementation of NFC technology and standardization, to ensure that equipment and services between collaboration. At present, the NFC forum in the world has more than 70 members, including: MasterCard International, Panasonic electronics industry limited company, Microsoft, Motorola, NEC, Renesas, Samsung, Dezhou equipment manufacturing company and Visa international organization.

The world's first commercial release of NFC: * Germany, RMV ( RMV ) April 19, 2006, Nokia, Philips, and Germany Vodafone company of Frankfurt area public transit network operators RMV ( Rhein-Main Verkehrsverbund ) announced that, in successfully for a period of 10 months of field test, a short distance wireless communication ( NFC ) technology to be put into commercial. At present, Nokia 3220 mobile phone has integrated NFC technology, can be used as an electronic ticket, but also in the local retail stores and attractions as loyalty card discount. Hanau city of about 95 residents now simply brush your compatible mobile phone, can enjoy NFC type bus mobile ticketing convenience.

Technical advantages

As with the RFID, NFC information is through the spectrum in radio frequency portion of the electromagnetic induction coupling transfer, but there is a big difference between the two. First of all, NFC is a free, safe, rapid communication of wireless connection technology, the transmission range is smaller than RFID, RFID transmission range can reach a few meters, or even tens of meters, but because the NFC adopted a unique signal attenuation, relative to the RFID NFC has a near distance, high bandwidth, low energy consumption. Secondly, NFC and existing contactless smart card technology compatibility, has become the major manufacturers to support more and more formal standards. Once again, NFC or a close connection protocol, with a variety of equipment, safety, easy quick and automatic communication. And in the wireless world other connection mode, NFC is a close secret communication. Finally, RFID were more widely in the production, logistics, tracking, asset management, and NFC is in access control, public transportation, mobile phone payment within the field of play a huge role.

At the same time, NFC is also superior to infrared and Bluetooth transmission. As a consumer oriented transaction mechanism, NFC faster than infrared, more reliable and easier, not to infrared that must be strictly aligned to transmit data. Compared with Bluetooth, NFC for short distance trade, applicable to the exchange of financial information or sensitive personal information and other important data; Bluetooth can make up the shortcoming of NFC communication distance, suitable for long distance data communication. Therefore, NFC and Bluetooth complement each other, common existence. In fact, fast and lightweight NFC protocol can be used to guide between two devices Bluetooth pairing process, promote the use of bluetooth.

NFC mobile phone built-in NFC chip, comprising part of the RFID module, can be used as a RFID passive tag use -- used to pay expenses; also can be used as a RFID reader -- used for data acquisition and transfer. NFC technology supports a wide variety of applications, including mobile payment and transaction, peer-to-peer communication and mobile information access. Through the NFC mobile phone, people can be in any place, any time, by any device, and they hope to get the entertainment services associated with the transaction, thereby completing payment information, obtain poster. The NFC device can be used as a contactless smart card, smart card reader terminal and equipment to a data transmission link, its application can be divided into the following four basic types: for payment and electronic ticket, ticket, used for intelligent media and for exchange, data transmission.