Introduction to Smart Tags：
RFID is the abbreviation of Radio Frequency identification, namely RFID, commonly known as electronic tags, or smart tags.
1. What is RFID technology Radio frequency Identification technology RFID is a non-contact type of automatic identification technology, it uses the radio frequency to carry on the non-contact two-way communication, achieves the automatic Identification target object (electronic tag) and obtains the related data, has the high accuracy, adapts the environment to be strong, the anti-interference is strong, the operation is quick, the identification work does not need the human intervention, the service life is long, The reading distance can be near and far (several centimeters to dozens of meters), storage information is large, highly confidential (each electronic tag has a unique ID number), read and write do not need light source, can read data through external materials, can work in harsh environment, can embed or attach to different types of products,
Many of the advantages of being able to handle multiple labels at the same time. The Accenture Lab's chief scientist, Sir Alex Ferguson, believes that RFID is a breakthrough technology: "First, you can identify a single object, rather than a bar code to recognize only a certain type of object; second, radio frequency can be used to read data through external materials, and barcodes must rely on lasers to read information; You can read multiple objects at the same time, and barcodes can be read only one by one. In addition, the amount of information stored is very large.
2. Basic components of RFID
The most basic RFID system consists of three parts:
Tags (tag): Composed of coupling components and chips, each label has a unique electronic code, attached to the object to identify the target object;
Reader: Devices that read (and sometimes can write) tag information can be designed as hand-held or stationary; Antenna (antenna): transmission of RF signals between tags and readers