The difference between NFC and RFID

- Dec 28, 2018-

The difference between NFC and RFID

Like RFID, NFC transmits information through electromagnetic induction coupling of the radio frequency portion of the spectrum, but there is a big difference between the two.

1. NFC is a wireless connection technology that provides easy, secure and fast communication. Its transmission range is smaller than that of RFID. The transmission range of RFID can reach several meters or even tens of meters. However, because NFC adopts a unique signal attenuation technology, Compared with RFID, NFC has the characteristics of close distance, high bandwidth and low energy consumption.

2. NFC is compatible with existing contactless smart card technology and has become the official standard supported by more and more major manufacturers.

3, NFC is a close-range connection protocol that provides easy, secure, fast and automatic communication between various devices. Compared to other connections in the wireless world, NFC is a close-range, private communication method.

4, RFID is more used in production, logistics, tracking, asset management, and NFC plays a huge role in the field of access control, public transportation, mobile payment.

NFC and RFID in smartphone payment applications, you know?

The difference between NFC and infrared, Bluetooth

NFC is superior to infrared and Bluetooth transmission. As a consumer-oriented trading mechanism, NFC is faster, more reliable, and much simpler than infrared, and does not have to be strictly aligned to transmit data in the infrared. Compared with Bluetooth, NFC is suitable for close-range transactions and is suitable for exchanging important information such as financial information or sensitive personal information. Bluetooth can make up for the shortcomings of insufficient NFC communication distance and is suitable for long-distance data communication. Therefore, NFC and Bluetooth complement each other and coexist. In fact, the fast and lightweight NFC protocol can be used to guide the Bluetooth pairing process between the two devices, which promotes the use of Bluetooth.

NFC and RFID in smartphone payment applications, you know?

NFC near-field payment and short-distance transmission are highly regarded by the industry, but why are they still not warm?

The key reason is that NFC is not easy to use. Various anti-intuitions, especially frustrating users, in daily life, where can ordinary people think of a certain place in a mobile phone to touch another place to achieve some functions? Knowing how many NFC people know the NFC area of their mobile phone Where? How many people can accurately align the NFC area of their mobile phone with the identification area? Can you proficiently change the identification area to the NFC area of another person's mobile phone? And, with NFC Some interaction processes need to be confirmed by both parties. Have you tried to confirm the pairing between the two mobile phone NFC pairing processes?

NFC and RFID in smartphone payment applications, you know? NFC smartphone

The answer to this series of questions is the key reason why NFC is not being used in large numbers. It is customary to say that most people can recognize that the action of "touching specific things with specific things" used in daily life is like brushing a bus card. There are two things that are essential here - the card in your hand, and the plane that looks like the recognition area. The action mode is to aim the card at the recognition area, put it, and wait for the confirmation signal. If it is successful, it can be removed. This action can't be complicated - the recognition area must be conspicuous or not. Do not know where to brush, the card must be smaller than the identification area or not know how to aim, the waiting time can not be too long, the confirmation signal should be clearly recognized.

Even with such a simple operation, you can observe how many people are taking the bus card to the screen of the card reader, and how many people have heard the error message completely unresponsive. This is the most common action in everyday life. The scenario used by mobile phone NFC is much more complicated and introduces many variables.

Take the example of mobile phone NFC payment, many people hold mobile phones and face the credit card machine. The first confusion is: Where is the identification area? On the common payment terminal, the small recognition area only has an NFC logo, and the color is made. Dark yellow is the most conspicuous way, and people who have not received knowledge instill do not know.

I found the identification area. The second confusion came: the mobile phone is much bigger than the identification area. Where do you touch it? The person who knows will find the identification area on his mobile phone. After finding it, he has to turn the identification area to the one he can't see. On the one hand, to align with the payment identification area, if there is any alignment, you have to wait for the screen to be prompted. How easy it is to frustrate this process. Moreover, how many payment system identification areas are set at the top of the screen? Note that the habit of taking the mobile phone is to hold from below, the hand will block the screen and see if the NFC payment is successful.

The payment scenario is still the best scenario for NFC. After all, I have provided you with an identification area that is not big enough but already large. The required operations are also simple, wait, see the screen to confirm the information. The use of mobile phones on mobile phones is simply anti-human.

NFC and RFID in smartphone payment applications, you know?

The trouble of using NFC is still unique, even worse than the original infrared transmission - just put the two phones on the desktop and head to the head, click on the confirmation on the screen, at least, the QR code is much stronger than NFC - Photographing with a mobile phone is a familiar step for everyone. Taking a QR code is just a few more follow-up actions. The whole process has rich and intuitive visual feedback.