The difference between RFID tags and NFC tags

The difference between RFID tags and NFC tags

The difference between RFID tags and NFC tags

The difference between RFID tags and NFC tags

Oct 21, 2020

With the continuous development of society, RFID tags have developed rapidly in all walks of life. Nowadays, the market is getting bigger and bigger. Many people can't distinguish the difference between RFID tags and NFC tags. Today, Shenzhen smart manufacturers will share with you:

    NFC tags are developed on the basis of RFID tags. In essence, NFC is not much different from RFID, and is based on the signal transmission between two objects with similar geographic locations.

 However, there is still a difference between NFC and RFID. NFC technology adds a point-to-point communication function, which can quickly establish P2P (point-to-point) wireless communication between Bluetooth devices. NFC devices find each other and establish communication connections. The two devices of P2P communication are peer-to-peer, while the two devices of RFID communication are in a master-slave relationship.


    Some differences in technical details:


    Compared with RFID technology, NFC has some characteristics such as short distance, high bandwidth, and low energy consumption. details:


    1. NFC is only limited to the 13.56MHz frequency band! And the frequency band of RFID has low frequency (125KHz to 135KHz), high frequency (13.56MHz) and ultra high frequency (860MHz to 960MHz).


    2. Effective working distance: NFC (less than 10cm, so it has high security), RFID distance is from a few meters to tens of meters!


    3. Because it also works at 13.56MHz, NFC is compatible with the existing contactless smart card technology, so many manufacturers and related organizations support NFC, and there are many RFID standards, and the unification is more complicated (it is estimated that it is impossible to unify). Under the special needs of special industries, the corresponding technical standards can be adopted!


    4. Application: RFID is more used in production, logistics, tracking, asset management, while NFC plays a huge role in access control, public transportation, mobile payment and other fields.


    In layman's terms, NFC is a near-field payment technology developed based on RFID technology. For example, a mobile phone with NFC function is equivalent to an e-wallet. Putting the mobile phone near the deduction machine can replace your usual payment by swiping your card. Acts such as paying cash. Mainly used in mobile payment, mobile reading.


    The definition difference between RFID and NFC:


    1. RFID is a non-contact identification technology, divided into active and passive. The main working principle is that the RFID reader emits radio frequency and passes through the coil of the electronic tag to generate a signal. The reader reads the information and decodes it to complete the entire identification process. Generally, active tags (active tags) can also actively send out signals. The RFID system is mainly composed of a reader (Reader) and a transponder (Transponder).


    It automatically recognizes the target object and obtains relevant data through radio frequency signals. The recognition work does not require manual intervention and can work in various harsh environments. RFID technology can identify high-speed moving objects and can identify multiple tags at the same time, and the operation is quick and convenient.


    2. NFC is a technology that has been used more on mobile phones in recent years, mainly between two NFC devices, when they approach each other within a relatively close distance, they can exchange information with each other and complete corresponding transactions and other functions. The biggest feature of NFC is that the reader and the transponder are integrated into the same chip. It can satisfy the information exchange, content access, and service exchange between any two wireless devices, and make it more simple.


    The relationship between the two is that NFC can be considered a subset of RFID, that is, RFID with a communication distance within 10cm or 4inch is NFC. This difference is mainly due to the fact that in some applications designed for cash payments and credit cards, other devices can also receive personal RFID information under the communication distance of RFID, which is insecure; this is the reason for NFC. If you use some special signal collection equipment, you can read RFID information at a considerable distance. NFC is an extension of RFID technology; RFID can send and receive information within a distance of several meters, while NFC only allows a safe distance of 10 cm; RFID has a wide range of applications, and NFC is only used when security is required; many mobile phones are already equipped with NFC devices.