Electronic tags are also called radio frequency tags, transponders, and data carriers; readers are also called reading devices, scanners, read heads, communicators, and readers (depending on whether the electronic tag can rewrite data wirelessly). The space (contactless) coupling of the radio frequency signal is realized between the electronic tag and the reader through the coupling element; in the coupling channel, energy transmission and data exchange are realized according to the timing relationship.
Electronic labels are a tool to improve the efficiency and accuracy of identification, and this technology will completely replace barcodes. RFID radio frequency identification is a non-contact automatic identification technology. It automatically identifies target objects and obtains relevant data through radio frequency signals. The identification work does not require manual intervention and can work in various harsh environments. RFID technology can identify high-speed moving objects and identify multiple tags at the same time, which is fast and convenient to operate.
RFID electronic tags are a breakthrough technology:
First, it can identify a single very specific object, instead of only identifying one type of object like a barcode;
Second, it uses radio frequency, which can read data through external materials, while barcodes must rely on lasers to read information;
Third, multiple objects can be read at the same time, while barcodes can only be read one by one. In addition, the amount of information stored is also very large.
