[TriLUG] Interior security camera

Thu Jul 28 13:22:01 EDT 2016

Well this camera is only 720p, but it is cheap and easy:

http://www.bhphotovideo.com/c/product/1174598-REG/optex_watchman_outdoor_battery_powered_camera.html

No computer connection needed.

There are a lot of surveillance cameras that have SD memory cards.  These
have the advantage of not needing a connection to anything but power.  Some
are easy to hide, others are a visible deterrent.

On the Linux side.  20 years ago I used Video4Linux and some proprietary
image processing software to do motion capture using a gray scale camera
running 640x480 pixels at 30 FPS.  The true capture and process rate was
about 7.5 FPS.  It took all of a day to get it working.  Today, I would use
OpenCV and expect about 10 FPS at 1080p in color.

Good luck,
Charles Fischer

On Thu, Jul 28, 2016 at 12:48 PM, Matt Flyer via TriLUG <trilug at trilug.org>
wrote:

> Years ago, back when I was in school, I worked in a retail music store.
> We noticed that started coming up short periodically, usually $5 or $10
> and it occurred to me that we had recently introduced a new employee to
> running the register and that it was happening when he was on duty.
>
> The next morning, I was scheduled to work with this employee and I made
> sure that I rang the register during the morning.  Just before lunch
> time, I sent him out to go get change and while he was gone I balanced
> the cash drawer.  When he returned, I told him I was going to lunch and
> made sure to take an extra long one.  When I came back, the first thing
> I did was balance the drawer again. Low and behold, it was exactly $5
> short when it had been dead on before.  He saw me doing this and smiled
> at me, but we never spoke of it.
>
> He was fired the next day.
>
> Instead of a camera, are there any 'low tech' solutions, such as I did
> above, that you could employ?
>
> On Thu, 2016-07-28 at 12:17 -0400, C TC via TriLUG wrote:
> > The Pi w/camera in a DIY "book" enclosure sounds like a win here.
> >
> > Just a note on this situation. Dealt with this a couple of decades
> > back;
> > while part-owning a bar. We told everyone that the till seemed short
> > a few
> > times and if it didn't add up correctly (+/- $1.00) twice .. they
> > risked
> > losing a job.
> > In the end, we saved a bunch of $ by hiring a new cashier, instead of
> > buying
> > a camera setup.
> >
> >
> >
> >
> >
> >
> >
> >
> > On Thu, Jul 28, 2016 at 12:01 PM, Grawburg via TriLUG <trilug at trilug.
> > org>
> > wrote:
> >
> > >
> > > The Pi is a consideration, my only concern was whether or not the
> > > camera
> > > has high enough definition. I have enough experience with the Pi
> > > (I'd use a
> > > Pi 3) to set it up.  The problem we are facing is that we think one
> > > of the
> > > cashiers is skimming money and can't prove it without
> > > evidence.  Finding a
> > > suitable enclosure will be the next issue.
> > >
> > > Brian Grawburg
> > >
> > >
> > > -----Original Message-----
> > > From: "Roger" <RogerB at bronord.com>
> > > To: "Grawburg" <grawburg at myglnc.com>, "Triangle Linux Users Group
> > > General
> > > Discussion" <trilug at trilug.org>
> > > Date: 07/28/16 11:52 AM
> > > Subject: Re: [TriLUG] Interior security camera
> > >
> > > Think about raspberry Pi. The III's have built-in camera support
> > > and an
> > > I'd expect that the add-on camera is inexpensive. I posted a link
> > > recently
> > > on the list for a $57 mit, with a discount code, via lifehacker.com
> > > /
> > > Amazon.You could probably even put together a player on it to play
> > > soothing
> > > music for the cashier and customers! But, I'm not sure that I would
> > > want to
> > > be your cashier, being watched every moment!
> > >
> > > --
> > > [This was sent from a PC running Debian 7, 64-bit Linux. No
> > > Microsoft
> > > products were used.]
> > >
> > >
> > >
> > >
> > > --
> > > This message was sent to: Carl <c.crider at gmail.com>
> > > To unsubscribe, send a blank message to trilug-leave at trilug.org
> > > from that
> > > address.
> > > TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
> > > Unsubscribe or edit options on the web  :
> > > http://www.trilug.org/mailman/options/trilug/c.crider%40gmail.com
> > > Welcome to TriLUG: http://trilug.org/welcome
> > >
> --
> This message was sent to: Charles Fischer <cfischer at modernferrotype.com>
> To unsubscribe, send a blank message to trilug-leave at trilug.org from that
> address.
> TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
> Unsubscribe or edit options on the web  :
> http://www.trilug.org/mailman/options/trilug/cfischer%40modernferrotype.com
> Welcome to TriLUG: http://trilug.org/welcome
>