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Today's Topics:
1. Re: Second threshold at same camera (Dave Howorth)
2. Re: Second threshold at same camera (walexand)
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Message: 1
Date: Fri, 25 Oct 2019 23:21:23 +0100
From: Dave Howorth <d...@howorth.org.uk>
To: motion-user@lists.sourceforge.net
Subject: Re: [Motion-user] Second threshold at same camera
Message-ID: <20191025232123.4c344...@acer-suse.lan>
Content-Type: text/plain; charset=US-ASCII
On Fri, 25 Oct 2019 19:35:30 +0200
walexand <w.alexan...@gmx.de> wrote:
> On 25.10.19 14:42, Ruslan Matveev wrote:
> > I would solve this problem in a different way: cat's collar with
> > ESP on it.
>
> Cat's collar is a bad idea at all. Have you ever seen a strangled cat
> hanging in a tree?
Cat's collars are so last-century. Or should that be last-millenium?
Nowadays, all responsible owners have their cats (and other pets)
microchipped. Some humans have them as well. Indeed that's how our cat
flap knows to admit our cats but keep other cats out. (Though I admit
our cats don't seem to understand the distinction yet).
So why not trigger it on recognition, or failed recognition, of a
microchip ID?
> No, I want to solve it with motion. Motion behaves perfectly,
> regarding threshold level and mask_file. If only I had higher
> programming skills... sigh
>
>
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------------------------------
Message: 2
Date: Sat, 26 Oct 2019 13:45:11 +0200
From: walexand <w.alexan...@gmx.de>
To: motion-user@lists.sourceforge.net
Subject: Re: [Motion-user] Second threshold at same camera
Message-ID: <013b6e77-86da-aa04-0785-d117b210f...@gmx.de>
Content-Type: text/plain; charset=utf-8; format=flowed
Dear Motion-users,
big thanks fo all your hints and conributions.
Sorry for my late answer but it has been nighttime in Germany ;-)
@Dave:
My cat is already chipped and I use a chip controlled cat flap. It works
fine. But it is not that easy to build at home a RFID reader for the pet
chip and to decode the chip number.
@PaulIV:
Yes, a second mask would solve my problem. Do I have to subscibe to some
developers forum to upvote issue935?
@rmbusy:
A second camera would be the most simple solution. I will do it, if
evrything else fails.
@Ronnie:
A second instance of motion running on the same Raspberry accessing the
same camera would not work. I'm utilizing the built in Raspberry Camera.
Thats why the whole thing works so elegant. Every hardware is in a tiny
box and every function works in software. Thats why I mostly wanted to
do it in software, by defining a second (higher) threshold level in the
detection loop, that triggers my external script.
To solve my problem I would do as follows:
1 (mostly preferred): Begging the program developers for help to show me
the bit of code, where the motion detection happens, so that I only have
to copy some "if" branch to define the second threshold.
2: Finding the relevant code myself and UNDERSTAND IT.
3. Using a second camera or a second pair of Raspberry Zero and RaspiCam
with hardware signal output to drive my magnet water valve.
Thank you for all your help and if anybody has the "golden idea" please
feel free to post it.
Regards
Alex
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