Views:1 Author:Site Editor Publish Time: 2018-06-15 Origin:Site
RFID and NFC are two closely related wireless communication technologies that are used globally for a vast number of applications such as access control, asset tracking and contactless payments. RFID was first patented in 1983 and is the precursor to NFC, so we will begin there.
Radio Frequency Identification (RFID)
RFID tag (RFID: Radio Frequency Identification) is a tagging technology which can be either passive, active, or a combination of both, and it can give long read range of up to 100 meters. RFID tag can help long range tracking applications since it doesn’t need a direct line of sight for the information to be read. RFID is used for a wide range of solutions. We’ve given a very basic example above (the microchipping of family pets) but RFID is a solution that crosses many industries and forms from asset tracking, inventory management and tool tracking through to race timing, attendee tracking and access control.
Near Field Communication (NFC)
RFID is used for a wide range of solutions. We’ve given a very basic example above (the microchipping of family pets) but RFID is a solution that crosses many industries and forms from asset tracking, inventory management and tool tracking through to race timing, attendee tracking and access control.
1.NFC is capable of two way communication and can therefore be used for more complex interactions such as card emulation and peer-to-peer (P2P) sharing.
2.NFC is limited to communication at close proximity, typically a few cm, although distances up to ten times this are theoretically possible.
3. Only a single NFC tag can be scanned at one time.
The requirement for close proximity can make NFC a more secure option. This, together with NFC’s ability for two way communications, has made it an ideal choice for contactless payments.
Arguably, this is perhaps the most important difference between NFC and RFID. Partly driven by the requirement for mobiles to be able to make contactless payments, almost all modern smartphones are now NFC enabled. Most mobile NFC devices can read tags compliant to ISO/IEC 14443 and many can also read tags compliant with ISO 15693 .
NFC-enabled phones offer both businesses and day-to-day users slick and intuitive communication between mobile phones and between a mobile phone and an NFC tag. Examples include file sharing via Android Beam, instant connection setups between electronic devices and the ability to link everyday objects such as posters to online content.