WHAT IS RFID?
Radio-frequency identification (RFID) is the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects.
A device called a reader sends an electromagnetic signal to the tag. Upon receiving the reader’s signal, the tag transmits its code to the reader. when an item embedded with an RFID tag moves past the RFID reader, the reader receives the tags unique identification information and the reader the either records the information, initiates an action (s.g alarm) or sends it on to the central application database for record, alarm or tracking purposes.
By monitoring Tag ID's, the RFID System can track the presence and location of a tagged object as it moves through the organisation.
USES OF RFID
SECURITY AND AUTHENTICATION
the application of RFID is known as Electronic Article Surveillance (EAS). EAS helps you increase the security of a system.
TRACK AND TRACE
Tracking the location of a particular object helps you monitor its movements.
In an industry, many types of equipment are subjected to hundreds of steps.
ENVIRONMENT SENSING AND MONITORING
you can integrate RFID technology with devices that sense and monitor various environmental conditions.
BENEFITS OF RFID
Each item has a unique ID, therefore each item can be individually tracked.
REDUCED HUMAN INTERVENTION
This reduces the error cost and labour involvement.
BETTER TIME MANAGEMENT
As items are scanned automatically, many can be scanned simultaneously thus more items can be scanned in less time.
REAL TIME INFORMATION FLOW
the scanned information is updated in "real-time" across the supply chain.
WHY USE RFID?
Storage capacity between 128 bytes and 8 kilobytes
No line of sight or contact required
Enhanced data security (authentication and encrypted data transfer)
Can operate in harsh, dirty and humid environments
Several tags can be read simultaneously
Read / write functionality (reprogrammable)
Storage capacity of 100 bytes
Require visual contact between scanner and barcode
No guarantee of security to data. Any scanner can read any barcode
Cannot be read when dirty or heavily scratched
Scanner can read only one barcode at a time
Cannot reprogram the contents of a barcode