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Difference Between NFC And RFID

Jun. 08, 2020

NFC is short-range wireless communication technology. NFC is a contactless identification and interconnection technology that enables short-range wireless communication between mobile devices, consumer electronics, PCs and smart control tools. NFC provides a simple, touch-sensitive solution that allows consumers to easily and intuitively exchange information, access content and services. The operating frequency is 13.56MHz, which is 13.56Mhz NFC Card, but users using this mobile payment solution must replace the special mobile phone. This technology is currently widely used in Japan and South Korea. Mobile phone users can travel across the country with a mobile phone equipped with a payment function: their mobile phones can be used for airport boarding verification, transportation cards, credit cards, payment cards, etc. In addition, they can also have a Hotel NFC Card.

NFC Card

NFC Card

Like RFID, NFC information is also transmitted through the electromagnetic induction coupling of the wireless frequency part of the spectrum, but there are still big differences between the two. First, NFC is a wireless connection technology that provides easy, secure, and fast communication, and its transmission range is smaller than RFID. Second, NFC is compatible with existing contactless smart card technology and has become a formal standard supported by more and more major manufacturers. Third, NFC is also a short-range connection protocol that provides easy, secure, fast and automatic communication between various devices. Compared with other connection methods in the wireless world, NFC is a close-range, private communication method.

NFC, infrared, and Bluetooth are all non-contact transmission methods. They have different technical characteristics and can be used for various purposes. There is no difference between the technology itself.

The NFC mobile phone has a built-in NFC chip, which increases the two-way data transmission function than the original RFID Sticker. This advancement makes it more suitable for electronic money payment; especially the RFID cannot achieve, mutual authentication and dynamic encryption and one-time keys ( OTP) can be implemented on NFC. NFC technology supports a variety of applications, including mobile payments and transactions, peer-to-peer communication, and information access on the move. With an NFC mobile phone, people can connect with the entertainment services and transactions they want, anywhere, anytime, and on any device, to complete payments, get poster information, and more. NFC devices can be used as contactless smart cards, reader-writer terminals for smart cards, and device-to-device data transmission links. Their applications can be divided into the following four basic types: for payment and ticket purchase, for electronic tickets, For smart media and for exchanging and transmitting data.

The difference between NFC and RFID:

First, NFC integrates contactless card readers, contactless cards, and point-to-point functions into a single chip, and RFID must have a reader and a tag. The NFC mobile phone has a built-in NFC chip, which forms part of the RFID module. It can be used as an RFID passive tag to pay fees; it can also be used as an RFID reader for data exchange and collection, and it can also perform data communication between NFC mobile phones. 

Second, the transmission range of NFC is smaller than that of RFID. The transmission range of RFID can reach several meters, even tens of meters. However, because NFC adopts a unique signal attenuation technology, NFC has a short distance, high bandwidth, and low energy consumption compared to RFID. 

Third, the application direction is different. NFC looks more at consumer electronic devices communicating with each other, and active RFID is better at long-distance identification. With the popularization of the Internet, mobile phones, as the most direct smart terminal of the Internet, will inevitably cause a technological revolution. Like the standard configuration of Bluetooth, USB, GPS, etc., NFC will become the most important standard configuration of mobile phones in the future. Technology, mobile payment, watching movies, and subway can all be realized, and it will play a greater role in our daily life.

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