How does the Active Tag RFID work?

Can any body provide the link for

How does the Active Tag RFID works & all stuff related to it?

Thank you in Advance

Tag classification according to EPC
http://www.epcglobalinc.org/standard...r-20071101.pdf


Class-1: Identity Tags (normative)
Passive-backscatter Tags with the following minimum features:
? An electronic product code (EPC) identifier,
? A Tag identifier (TID),
? A 'kill' function that permanently disables the Tag,
? Optional password-protected access control, and
? Optional user memory.

Class-2: Higher-Functionality Tags
Passive Tags with the following anticipated features above and beyond those of Class-1 Tags:
? An extended TID,
? Extended user memory,
? Authenticated access control, and
? Additional features (TBD) as will be defined in the Class-2 specification.

Class-3: Semi-Passive Tags
Semi-passive Tags with the following anticipated features above and beyond those of Class-2 Tags:
? An integral power source, and
? Integrated sensing circuitry.

Class-4: Active Tags
Active Tags with the following anticipated features above and beyond those of Class-3 Tags:
? Tag-to-Tag communications,
? Active communications, and
? Ad-hoc networking capabilities.

some links
http://www.amtel-security.com/products/rfid_tags.html
http://www.themanufacturer.com/us/co...ctive_RFID_tag
http://www.wavetrend.net/products_tags.aspx


Regards
GV

Thanks dude...

But I want files related to the working of RFID active tags

Anyways thanks for the help!

hi,

Active tags work on proprietary protocols. there is no standard protocol which governs its operation. To my knowledge the tags transmit its unique ID every 1 or 10 secs and the reader keeps listening for the unique ID . The reader receives the unique id and sends the unique ID to application software