The previous article Xiaobian introduced the knowledge about the concept and basic structure of RFID technology. This article continued to popularize the working principle and work characteristics of RFID technology, and hoped to help everyone.
Smart home wireless technology—RFID radio frequency technology knowledge
1, RFID technology works
The basic working principle of RFID technology is not complicated. When the tag enters the magnetic field, it receives the RF signal from the reader, sends the energy stored in the chip by the energy obtained by the induced current, or sends a signal at a certain frequency. The reader reads the information and decodes it, and sends it to the central information system for data processing.
2, the performance characteristics of RFID technology
Data storage: Compared with traditional forms of tags, RFID tags have greater capacity, and the stored data can be updated at any time and can be read and written.
Reading and writing speed: compared with the bar code, it does not need alignment scanning, faster reading and writing, and can achieve multi-target recognition, motion recognition.
Easy to use: RFID tags are small, easy to package, and can be embedded directly into the product.
Security: Each RFID tag has a dedicated chip, unique serial number, it is difficult to copy, and security is more secure.
Durable: no mechanical failure, longer life, no adverse environmental impact.
Sensing effect: RFID tags are better than traditional tags.
The working principle and performance characteristics of RFID wireless radio frequency technology are introduced here. This kind of technology is widely used in the field of smart home, such as access control systems, smart lock products, etc., all of which use this technology. It is the current smart home communication technology. It is very widely used.
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