18-01-2013, 04:04 PM
RFID TECHNOLOGY
[attachment=47581]
WHAT IS RFID
Radio Frequency Identification Device
Holds a small amount of unique data – a serial number or other unique attributes of the item
The data can be read from a distance – no contact or even line of sight necessary
RFID HISTORY
Technology used in RFID’s was first developed in the 1920’s.
First used by Soviet’s in 1945 as an espionage tool (passive, covert listening)
First use of RFID device – 2nd world war – Brittan used RFID-like technology for Identify- Friend or Foe
COMPONENTS OF AN RFID
RFID Tag
Transponder
Located on the object
RFID Reader
Transceiver
Can read and write data to Tag
ANTENNA
TAGS
An RFID tag consist of microchip that store information and Antenna that transmits this data wirelessly to a Reader.
There are of two types of TAGS :-
1. Active TAG.
2. Passive TAG.
Active and passive only communicate when interrogated by transceiver
Active RFID Tags
Active tags have their own transmitter and power source, usually in the of a small battery. Active tags can be detected at a greater range than passive tags.
Battery Powered tags
Have much greater range – 100m
Hold much more information – Kbytes
Multiple tags can be recorded/read at once
Used for higher value items
Shipping containers
Electronic assets
Cost between $20 and $40 per item
Life between 2 – 4 years
[attachment=47581]
WHAT IS RFID
Radio Frequency Identification Device
Holds a small amount of unique data – a serial number or other unique attributes of the item
The data can be read from a distance – no contact or even line of sight necessary
RFID HISTORY
Technology used in RFID’s was first developed in the 1920’s.
First used by Soviet’s in 1945 as an espionage tool (passive, covert listening)
First use of RFID device – 2nd world war – Brittan used RFID-like technology for Identify- Friend or Foe
COMPONENTS OF AN RFID
RFID Tag
Transponder
Located on the object
RFID Reader
Transceiver
Can read and write data to Tag
ANTENNA
TAGS
An RFID tag consist of microchip that store information and Antenna that transmits this data wirelessly to a Reader.
There are of two types of TAGS :-
1. Active TAG.
2. Passive TAG.
Active and passive only communicate when interrogated by transceiver
Active RFID Tags
Active tags have their own transmitter and power source, usually in the of a small battery. Active tags can be detected at a greater range than passive tags.
Battery Powered tags
Have much greater range – 100m
Hold much more information – Kbytes
Multiple tags can be recorded/read at once
Used for higher value items
Shipping containers
Electronic assets
Cost between $20 and $40 per item
Life between 2 – 4 years