Cat detector/RFID tags
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Can't seem to find who started this question, but here is a possible solution:
What may do the job is a RFID tag (radio frequency identification). This
technology is finding it's way into many areas, including retail, industrial,
medical, inventory control and tracking and many others.
At the recent Front Line show I attended (formally known as Scan Tech) in the
Chicago area, several systems were demonstrated and I believe that one of
more "kits" were available. The RFID tag is powered from an external source
and contains an antenna (loop), active device (usually some sort of receiver,
of very low power consumption) and low power transmitter. The RFID tag
typically has a code embedded in it that is sent back to a receiver that can
be used to open the door into the "cat house".
I believe that the transmitter operates at a frequency of 13.xxx Mhz and is
crystal controlled. RFID tags can be about the size of a credit card or
smaller with the outer area used for the loop antenna. The Mobil gas "Speed
Pass" uses RFID technology (I believe). But for your application, size and
weight are important (for the cat) and other frequencies may be better and/or
offer other advantages.
Get out the grid dip meter, determine the resonant frequency of the speed
pass, determine the embedded code and go to it!
Your comments, thoughts and ideas please. Burt
What may do the job is a RFID tag (radio frequency identification). This
technology is finding it's way into many areas, including retail, industrial,
medical, inventory control and tracking and many others.
At the recent Front Line show I attended (formally known as Scan Tech) in the
Chicago area, several systems were demonstrated and I believe that one of
more "kits" were available. The RFID tag is powered from an external source
and contains an antenna (loop), active device (usually some sort of receiver,
of very low power consumption) and low power transmitter. The RFID tag
typically has a code embedded in it that is sent back to a receiver that can
be used to open the door into the "cat house".
I believe that the transmitter operates at a frequency of 13.xxx Mhz and is
crystal controlled. RFID tags can be about the size of a credit card or
smaller with the outer area used for the loop antenna. The Mobil gas "Speed
Pass" uses RFID technology (I believe). But for your application, size and
weight are important (for the cat) and other frequencies may be better and/or
offer other advantages.
Get out the grid dip meter, determine the resonant frequency of the speed
pass, determine the embedded code and go to it!
Your comments, thoughts and ideas please. Burt
Comments
("Speed Pass") idea.... The Speed Pass used by Mobil Oil is pretty
small and would easily fit on a cat collar.
They (the Mobil Oil people) also told me the little embedded battery
is expected to last for "several" years...
Just be prepared to answer questions when you start waving your cat
in front of the gas pump. :-)
Cheers,
Don
--- In basicstamps@y..., burtsz@a... wrote:
> Can't seem to find who started this question, but here is a
possible solution:
>
> What may do the job is a RFID tag (radio frequency
identification). This
> technology is finding it's way into many areas, including retail,
industrial,
> medical, inventory control and tracking and many others.
>
> At the recent Front Line show I attended (formally known as Scan
Tech) in the
> Chicago area, several systems were demonstrated and I believe that
one of
> more "kits" were available. The RFID tag is powered from an
external source
> and contains an antenna (loop), active device (usually some sort of
receiver,
> of very low power consumption) and low power transmitter. The RFID
tag
> typically has a code embedded in it that is sent back to a receiver
that can
> be used to open the door into the "cat house".
>
> I believe that the transmitter operates at a frequency of 13.xxx
Mhz and is
> crystal controlled. RFID tags can be about the size of a credit
card or
> smaller with the outer area used for the loop antenna. The Mobil
gas "Speed
> Pass" uses RFID technology (I believe). But for your application,
size and
> weight are important (for the cat) and other frequencies may be
better and/or
> offer other advantages.
>
> Get out the grid dip meter, determine the resonant frequency of the
speed
> pass, determine the embedded code and go to it!
>
> Your comments, thoughts and ideas please. Burt