Re: [SLUG] video cameras

[Terry Collins <terryc@nospam.woa.com.au>]

Jamie Honan wrote:
> 
> Probably best to separate cameras from capture devices. Cameras
> that can produce video signal / capture devices take video signals.

The axis box is the only thing I know of that is directly networked.
Great if you want minimal hardware in an exposed situation (Yep, I can
sell it). (Note power requirements)

The problem with the cheap Jaycar, et al sugar cube cameras is light
levels as you have to provide some irising, either through software
(haven't found any yet), or manually adjust.

Allthings, http://www.allthings.com.au, have the more versatile
cameras with auto irising and weather proof mountings, but cost a lot
more. Read their www pages for a lot of info.


However, you mention IR and night time, so I gather you are planning
to IR light the area, which should fix the problem of your camera
having to respond to different light (it wont need to if it is in an
enclosed area). 

You might also consider buying some of the Oatley Electronics IR
floods in different leds to see which frequency is best for the
camera. Otherwise, for large areas, fitting IR glass to a flood light
is an options.

You might also consider a cheap videocam (auto iris, auto focus). This
is an idea based on fiddling with one recently.

If you want to do the separate camera and computer, you need 486+ with
PCI slot. I, Everything Linux and Len Chan can sell you capture cards.
I've put sugar cubes 10M away from capture card with no problems (Suse
stand at Linux Expo 2000 - well Len did, but I made the cables up
{:-).  CPU depends on how many frames per second.


> 
> Terry Collins will have stacks of info on capture cards, I'm
> sure he will reply.
> 
> (something like http://www.woa.com.au/linux/how-tos/webcaminstall.html)

This will give you some dated software stuff.

> 
> for capture, bascially bt484 type cards.
> 
> There are plenty of cheap IR cameras, e.g oatley electronics has them,
> or Jaycar.
> 
> For more professional, allthings in perth has an extensive range and
> probably lots of advice.

Their advice is "Read our webpages"
> 
> Oatley, Jaycar and allthings are on the web or grab an electronics
> australia / silicon chip.

www.oatleyelectronics.com

--
   Terry Collins {:-)}}} Ph(02) 4627 2186 Fax(02) 4628 7861  
   email: terryc@nospam.woa.com.au  www: http://www.woa.com.au  
       or terryc@nospam.zip.net.au 
   WOA Computer Services <lan/wan, linux/unix, novell>
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