Cat detector

D

Dan

Guest
So my cat sneaks out when people come in/out the door.
She's an indoor cat, but very sneaky. I don't mind too
much except when its like -5 out and the wife sends me
out at midnight to find the stupid cat.

How can I detect when a cat is in the doorway? I was
thinking an optical sensor about 5" from the floor in
the doorway but I don't want it to detect everything,
just this one cat. Is there some simple detector I can
make for a simple RFID tag (attached to the cats collar)?
I don't know anything about RFID tags. Where does one
even get them in small quanities (other than steal an
item of clothing with one of them embedded in it)?

I have read a little online about resonant circuits
and using a wire loop as part of a detector circuit
(I guess thats really a simple RFID tag), but I didn't
find enough info to help me build anything. For the cat,
I need something thats not powered and small enough to
attach to a cat collar.

Any helpfull thoughts?

Thanks.

dan
 
On Thu, 20 Jan 2005 20:50:20 -0600, Dan <dansix@pobox.com> wrote:

So my cat sneaks out when people come in/out the door.
She's an indoor cat, but very sneaky. I don't mind too
much except when its like -5 out and the wife sends me
out at midnight to find the stupid cat.

How can I detect when a cat is in the doorway?
Click to expand...
I want the same thing for my neighbors cat. My solution requires no
special equipment to be present in the cat.

The nasty animal has decided my door mat is a cat scratch toy and has
taken my mat that had no noticeable wear in 10 years to a worn mess in a
couple months. I poured ammonia around a few times. It continues.

Somebody's pet is just a pest to me. Any ideas how to make it go away?
 
"xray" <notreally@hotmail.invalid> wrote in message
news:ij51v01ru14tsi96fh10ootrvto8cg5cam@4ax.com...
On Thu, 20 Jan 2005 20:50:20 -0600, Dan <dansix@pobox.com> wrote:

So my cat sneaks out when people come in/out the door.
She's an indoor cat, but very sneaky. I don't mind too
much except when its like -5 out and the wife sends me
out at midnight to find the stupid cat.

How can I detect when a cat is in the doorway?

I want the same thing for my neighbors cat. My solution requires no
special equipment to be present in the cat.

The nasty animal has decided my door mat is a cat scratch toy and has
taken my mat that had no noticeable wear in 10 years to a worn mess in a
couple months. I poured ammonia around a few times. It continues.

Somebody's pet is just a pest to me. Any ideas how to make it go away?
Click to expand...
Are you in a police state or in the US?
 
xray wrote:

The nasty animal has decided my door mat is a cat scratch toy and has
taken my mat that had no noticeable wear in 10 years to a worn mess in a
couple months. I poured ammonia around a few times. It continues.

Somebody's pet is just a pest to me. Any ideas how to make it go away?
Click to expand...
Bleach instead of ammonia? High voltage (take care to limit the current
- and the voltage so shoes are adequate protection :)?


Thomas
 
On Thu, 20 Jan 2005 20:50:20 -0600, Dan wrote:

So my cat sneaks out when people come in/out the door.
She's an indoor cat, but very sneaky. I don't mind too
much except when its like -5 out and the wife sends me
out at midnight to find the stupid cat.
Click to expand...
You need to train your wife.

The damn cat will come back when it gets hungry. It knows where the can
opener is.

Let the evil thing go.

How can I detect when a cat is in the doorway?
Click to expand...
By watching when you go in or out?
....
Any helpfull thoughts?
Click to expand...
Yeah. Let the damn thing go. If your wife is _that_ addicted to cat shit,
then you should let her go too.

Good Luck!
Rich
 
On Fri, 21 Jan 2005 08:55:00 +0100, Zak wrote:

xray wrote:

The nasty animal has decided my door mat is a cat scratch toy and has
taken my mat that had no noticeable wear in 10 years to a worn mess in a
couple months. I poured ammonia around a few times. It continues.

Somebody's pet is just a pest to me. Any ideas how to make it go away?

Bleach instead of ammonia? High voltage (take care to limit the current
- and the voltage so shoes are adequate protection :)?

Nah. Just a set of parallel wires, spaced about 1/4", with alternate wires
Click to expand...
connected to opposite sides of the line.

Or you could trap it and "take it to the pound". >:->

Good Luck!
Rich
 
On Fri, 21 Jan 2005 08:50:47 GMT, the renowned Rich Grise
<richgrise@example.net> wrote:

On Thu, 20 Jan 2005 20:50:20 -0600, Dan wrote:

So my cat sneaks out when people come in/out the door.
She's an indoor cat, but very sneaky. I don't mind too
much except when its like -5 out and the wife sends me
out at midnight to find the stupid cat.

You need to train your wife.

The damn cat will come back when it gets hungry. It knows where the can
opener is.

Let the evil thing go.

How can I detect when a cat is in the doorway?

By watching when you go in or out?
...
Any helpfull thoughts?

Yeah. Let the damn thing go. If your wife is _that_ addicted to cat shit,
then you should let her go too.

Good Luck!
Rich
Click to expand...
http://www.speff.com/pic09758.jpg



Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
 
I read in sci.electronics.design that xray <notreally@hotmail.invalid>
wrote (in <ij51v01ru14tsi96fh10ootrvto8cg5cam@4ax.com>) about 'Cat
detector', on Fri, 21 Jan 2005:
Somebody's pet is just a pest to me. Any ideas how to make it go away?
Click to expand...
Get your own cat.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
 
In article <cf0ixCC06N8BFwNJ@jmwa.demon.co.uk>,
John Woodgate <noone@yuk.yuk> wrote:
I read in sci.electronics.design that xray <notreally@hotmail.invalid
wrote (in <ij51v01ru14tsi96fh10ootrvto8cg5cam@4ax.com>) about 'Cat
detector', on Fri, 21 Jan 2005:
Somebody's pet is just a pest to me. Any ideas how to make it go away?

Get your own cat.
Click to expand...
Yes, ideally a large tom short hair semi-wild cat. If you get one as good
as I had, you won't have trouble with other cats coming in your yard. For
that matter you won't have trouble with dogs either.

Barring that, some pet stores sell stuff that cats hate the smell of. It
seems to really work.

--
--
kensmith@rahul.net forging knowledge
 
In article <pan.2005.01.21.08.55.46.99468@example.net>,
Rich Grise <richgrise@example.net> wrote:
[...]
The damn cat will come back when it gets hungry. It knows where the can
opener is.
Click to expand...
Actually it may not. An in door cat can become lost easily. The the
outdoors map has not been downloaded into the route finding software.

--
--
kensmith@rahul.net forging knowledge
 
xray <notreally@hotmail.invalid> wrote:
On Thu, 20 Jan 2005 20:50:20 -0600, Dan <dansix@pobox.com> wrote:

So my cat sneaks out when people come in/out the door.
She's an indoor cat, but very sneaky. I don't mind too
much except when its like -5 out and the wife sends me
out at midnight to find the stupid cat.

How can I detect when a cat is in the doorway?

I want the same thing for my neighbors cat. My solution requires no
special equipment to be present in the cat.

The nasty animal has decided my door mat is a cat scratch toy and has
taken my mat that had no noticeable wear in 10 years to a worn mess in a
couple months. I poured ammonia around a few times. It continues.

Somebody's pet is just a pest to me. Any ideas how to make it go away?
Click to expand...
Piss on the door.
(or on the cat, if you can hit it.)
The smell reportedly deters cats.
 
"Don Pearce" <donald@pearce.uk.com> wrote in message
news:41f44b76.37387250@news.plus.net...
No, you go to the local zoo and ask for a bottle of tiger piss. Spread
a bit of that around and there won't be a cat for miles.
Click to expand...
Just exactlly how does the zoo collect tiger piss?
 
On Fri, 21 Jan 2005 11:04:54 -0800, "Richard Henry" <rphenry@home.com>
wrote:

"Don Pearce" <donald@pearce.uk.com> wrote in message
news:41f44b76.37387250@news.plus.net...

No, you go to the local zoo and ask for a bottle of tiger piss. Spread
a bit of that around and there won't be a cat for miles.

Just exactlly how does the zoo collect tiger piss?
Click to expand...
Well, it is certainly true that you only take the piss out of a tiger
once...

d

Pearce Consulting
http://www.pearce.uk.com
 
I read in sci.electronics.design that Richard Henry <rphenry@home.com>
wrote (in <tncId.4841$hu.2781@fed1read01>) about 'Cat detector', on Fri,
21 Jan 2005:
"Don Pearce" <donald@pearce.uk.com> wrote in message
news:41f44b76.37387250@news.plus.net...

No, you go to the local zoo and ask for a bottle of tiger piss. Spread
a bit of that around and there won't be a cat for miles.

Just exactlly how does the zoo collect tiger piss?


Very, very carefully.
Click to expand...
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
 
On Fri, 21 Jan 2005 05:12:24 -0500, Spehro Pefhany wrote:

On Fri, 21 Jan 2005 08:50:47 GMT, the renowned Rich Grise
richgrise@example.net> wrote:

On Thu, 20 Jan 2005 20:50:20 -0600, Dan wrote:

So my cat sneaks out when people come in/out the door.
She's an indoor cat, but very sneaky. I don't mind too
much except when its like -5 out and the wife sends me
out at midnight to find the stupid cat.

You need to train your wife.

The damn cat will come back when it gets hungry. It knows where the can
opener is.

Let the evil thing go.

How can I detect when a cat is in the doorway?

By watching when you go in or out?
...
Any helpfull thoughts?

Yeah. Let the damn thing go. If your wife is _that_ addicted to cat shit,
then you should let her go too.

Good Luck!
Rich

http://www.speff.com/pic09758.jpg


ROFLMAO!
Click to expand...

Thanks!
Rich
 
"Guy Macon" <_see.web.page_@_www.guymacon.com_> wrote in message
news:10v1bj8rrt0r298@corp.supernews.com...
Brian wrote:

Are you in a police state or in the US?

Yes.

Are you a primate or a mammal?
Click to expand...
By your answer, I wish you ultra-liberal goofball butt would move to
Australia.
 
Brian wrote:
"Guy Macon wrote...

Brian wrote:

Are you in a police state or in the US?

Yes.

Are you a primate or a mammal?

By your answer, I wish you ultra-liberal goofball butt
would move to Australia.
Click to expand...
My friends down at Libertarian Party HQ will be rather
amused that I have suddenly become a ultra-liberal... :)
 
On Fri, 21 Jan 2005 16:28:56 +0100, Rene Tschaggelar <none@none.net>
wrote:


Unless you really want to stick to hightech stuff to
solve trivial problems, there are more foolprof
solutions. For whatever reason a cat of mine chooses
to pee on shoes. So how can I prevent the cat from
reaching this area ? Since this cat doesn't jump more
than 60cm, I made an 80cm high gate from some plywood
that separates this area from the rest.

80cm is less than three feet. What did you do to this cat? Cut off
Click to expand...
its feet when you declawed it?:)
--
Thaas
 
Thaas wrote:
80cm is less than three feet. What did you do to this cat? Cut off
its feet when you declawed it?:)
Click to expand...
Anyone who declaws a cat should have the last joint of every finger
removed with a machete. Then, their home should be filled with feral
cats to scratch every piece of furniture to shreds.
 
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