RFID stands for radio frequency identification. It is the latest technology where radio frequency an electromagnetic wave is used to communicate between RFID tag and RFID reader.
RFID is an automatic identification and data capture (AIDC) technology. Wherein it automatically detects the devices, collects data from the RFID tag and this data is analyzed and sends back real-time alert if necessary. This collected stored permanently in the computer system.
This technology consists of RFID Tag, RFID reader, antenna, controller, and server for data storage. Digital data is encoded in the RFID tag which contains information regarding the product. This data is passed on to the reader by using radio waves. Most important property of this technology is it does not requires line of sight and range varies from cm to meters. Only these key features make it superior to other technologies.
Type of RFID
There are three types of RFID that are differentiated on the basis of frequency ranges of electromagnetic waves.
- Low Frequency having 30-300 KHz radiofrequency
- High Frequency having 13.56 MHz radiofrequency
- Ultra-High Frequency having 300-3000 MHz radiofrequency
There are two types of RFID tags
- Active RFID tag
- Passive RFID tag
Application of RFID has no limits, neither it is limited to any particular sector, it can be used in any process, any industry, from minute to huge tasks.