Radio frequency identification technology is a use of radio waves for non-contact two-way communication automatic identification technology.
I. Definition of radio frequency identification technology
Radio frequency identification technology is a kind of automatic identification technology using radio waves for non-contact two-way communication. It can automatically recognize the target object and obtain relevant data through electromagnetic induction. Because of the advantages of automatic identification, fast reading and writing, high density, high reliability, long service life, radio frequency identification technology is widely used in various fields such as production, logistics, medical care, transportation, etc.?
Two, the working principle of radio frequency identification technology
1, the label (Tag): RFID system in the tag consists of a chip and antenna. Each tag has a unique electronic code that can store information about the item, such as the date of production, manufacturer, etc.. The tag can be attached to the item, or embedded in the item.
2, the reader (Reader): RFID system in the reader is responsible for sending radio frequency signals, and receive the response signal from the tag. The reader is usually connected to a computer and other data processing equipment in order to process the received data.
3, the antenna (Antenna): Antenna is the communication medium between the tag and the reader. Label antenna is responsible for receiving RF signals from the reader, and send label data to the reader. Reader antenna is responsible for sending RF signals and receive response signals from the label.
4, process: when the tag enters the reader magnetic field, it will sense the RF signal from the reader, and produce inductive current, and then the data stored in the tag chip to send to the reader. By decoding and processing the received data, the reader can realize the fast and accurate identification and management of items.
RFID applications
I. Logistics management
By attaching RFID tags to the items, it can realize the fast and accurate tracking and management of the items. In the logistics process, vehicles, containers and other means of transportation can be monitored in real time to improve logistics efficiency and reduce transportation costs.
Two, production management
In the production line, you can realize automated production management through RFID technology. By recognizing the product RFID tags, you can quickly access production data and track production progress, improve production efficiency and product quality.