What is different between RFID and NFC?

With the continuous development of society, RFID tags have developed rapidly in all walks of life. Now the market is getting bigger and bigger, and many people can't distinguish the difference between RFID tags and NFC tags. Today, Shenzhen Xinye Intelligent Manufacturer 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 signal transmission between two objects with similar geographic locations. RFID tags 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. detailed 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 several 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 groups 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, and asset management, while NFC plays a huge role in fields such as access control, public transportation, and mobile payment. 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 electronic wallet. Putting the mobile phone close to 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 a radio frequency, passes through the coil of the electronic tag, generates a signal, and the reader reads and decodes the information 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 the integration of the reader and the transponder into the same chip. It can satisfy information exchange, content access, service exchange between any two wireless devices, and make it more simple. The relationship between the two is that NFC can be considered as 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, and there are insecure factors; this is the reason why NFC proposed. If you use some special signal acquisition 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.

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