source:Industry News Popular:rfid fpc tag release time:2021-11-12 09:30:00 Article author:sznbone
RFID technology introduction
The so-called RFID technology is actually the abbreviation of Radio Frequency Identification (RFID). This technology mainly uses the principle of magnetic field or electromagnetic field to realize two-way communication between devices through radio frequency, so as to realize the function of exchanging data. The biggest feature of this technology is that you can obtain information about the other party without contact. ETC is one of the more typical application scenarios. The radio wave frequency bands commonly used in RFID technology mainly include: low frequency, high frequency, ultra high frequency and microwave frequency bands.
The system is mainly composed of three parts: Reader, Tag and data management system.
1. Reader (Reader) is also called reader, which is mainly used to read the information in the electronic tag, or write the information required by the tag into the tag. According to different uses, readers are divided into read-only readers and read/write readers, which are the information control and processing center of the RFID system. When the RFID system is working, the reader sends radio frequency energy in an area to form an electromagnetic field. The size of the area depends on the transmit power. The tag in the coverage area of the reader is triggered to send the data stored in it, or modify the data stored in it according to the instructions of the reader, and can communicate with the computer network through the interface.
2. Electronic tags (Tag). The electronic tag is mainly used to store certain data information. At the same time, it will receive the signal from the reader and send the required data back to the reader. The electronic tag is generally affixed or fixedly installed on the article.
3. Data management system. Process the electronic label data transmitted from the reader for analysis, and at the same time complete the functions required by the user.
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