Radio Frequency Identification (RFID)
Radio Frequency Identification (RFID) is an automatic identification method by using RFID tag with tag antenna or transponder. It depends on the use of machines to identify objects and often linked with automatic data capture. The data will then be transferred to the computer system without human intervention. The aim is to increase efficiency, reduce data entry errors and allows staff to perform other value-added functions, such as providing customer service.
RFID consists of three components:
- An antenna or coil
- A reader (with decoder)
- A transponder (RF tag) electronically programmed with unique information
Aim of RFID:
-To reduce administrative error
-To reduce labor costs associated with scanning bar codes
-To reduce internal theft
-To reduce errors in shipping goods and overall inventory levels
How RFID works?
RFID uses radio waves to automatically identify people or objects with the help of the three components. The antenna emits radio signals to activate the tag and read and write data or information on a microchip that is attached to antenna. The microchip and the antenna are known as an RFID tag. The antenna will help the microchip to transmit information to a reader when the tag enters the radio frequency field. The reader will read and decode the radio waves into digital computer which is readable by the computer.
