RFID is the abbreviation of Radio Frequency Identification, which is radio frequency identification, commonly known as electronic label.

　　What is RFID technology?

　　RFID radio frequency identification is a non-contact automatic identification technology. It automatically recognizes the target object and acquires relevant data through the radio frequency signal. The identification work can work in various harsh environments without manual intervention. RFID technology can recognize high-speed moving objects and recognize multiple labels at the same time, which is quick and easy to operate.

　　RFID is a simple wireless system with only two basic components for controlling, detecting, and tracking objects. The system consists of an interrogator （or reader） and a number of transponders （or tags）。

　　Classification of RFID

　　RFID is divided into low frequency （LF）， high frequency （HF）， ultra high frequency （UHF）， and microwave （MW） according to the application frequency. The corresponding representative frequencies are: low frequency 135KHz, high frequency 13.56MHz, super High frequency 860M——960MHz, microwave 2.4G, 5.8G.

　　RFID is divided into passive RFID, active RFID, and semi-active RFID according to the way energy is supplied. Passive RFID read and write distance is near, the price is low; active RFID can provide farther read and write distance, but need battery power, the cost is higher, suitable for long-distance reading and writing applications.

　　What is the basic component of RFID?

　　Tag: consists of a coupling element and a chip, each tag having a unique electronic code attached to the object to identify the target object;

　　Reader: A device that reads （and sometimes writes） tag information and can be designed to be handheld or fixed;

　　Antenna: Transmits RF signals between the tag and the reader.

　　What is the basic component of RFID?

　　Tag: consists of a coupling element and a chip, each tag having a unique electronic code attached to the object to identify the target object;

　　Reader: A device that reads （and sometimes writes） tag information and can be designed to be handheld or fixed;

　　Antenna: Transmits RF signals between the tag and the reader.