What Is The Difference And Connection Between RFID And NFC?

NFC integrates contactless card reader, contactless card and point-to-point functions into a single chip, while rfid consists of a reader and a tag. RFID can realize information reading and judgment, while NFC technology emphasizes information interaction. In layman's terms, NFC is an evolved version of RFID, and the two parties can exchange information at close range. The current NFC mobile phone has a built-in NFC chip, which forms a part of the RFID module, and can be used as an RFID passive tag for payment; it can also be used as an RFID reader for data exchange and collection, and can also be used for communication between NFC mobile phones. data communication.

The transmission range of NFC is smaller than that of RFID. The transmission range of RFID can reach several meters or even tens of meters. However, due to the unique signal attenuation technology adopted by NFC, NFC has the advantages of short distance, high bandwidth and low energy consumption compared with RFID. Features.

The application direction is different. At present, NFC is more aimed at communicating with consumer electronic devices, while active RFID is better at long-distance identification. RFID is more widely used in production, logistics, tracking, and asset management, while NFC plays a huge role in access control, public transportation, mobile payment and other fields.

1. Working frequency

The working frequency of NFC is 13.56MHz; while the working frequency of RFID includes low frequency, high frequency, ultra high frequency and so on.

2. Working distance

The working distance of NFC is theoretically 0~20cm, but in the realization of the product, due to the use of special power suppression technology, the working distance is only 0~10cm, so as to better ensure the security of the business; because RFID has different Frequency, its working distance ranges from a few centimeters to tens of meters.

3. Working mode

NFC supports both read-write mode and card mode; while in RFID, the card reader and contactless card are two independent entities and cannot be switched.

4. Communication mode

NFC supports P2P mode, RFID does not support P2P mode.

5. Standard protocol

The underlying communication protocol of NFC is compatible with the underlying communication standard of high-frequency RFID, that is, compatible with the ISO14443/ISO15693 standard. NFC technology also defines relatively complete upper layer protocols, such as LLCP, NDEF and RTD.

6. Application field

NFC technology is compatible with high-frequency RFID, so it has a wide range of applications. However, there are many RFID standards, and the unification is more complicated. Intelligence adopts corresponding technical standards in special industries or fields with special needs.