[wplug] Security System?

[Rob Knapp]

> On Tue, Oct 09, 2007 at 11:26:32AM -0400, Rob Knapp wrote: 
> > [...] 
[snip]

> It is possible; you can use "motion -c ..." to specify separate 
> config files with different video devices. 
> 

That might be enough, although I'll also take a look at ZoneMinder.

> > It looks like I"m going to need 3 tv cards (one for each camera), a 
> > big HD (160GB), and some way to get the video off the computer 
> > (DVD-R or something). 
> 
> A cheaper alternative may be to use a 4:1 video mux (google for "video 
> quad mux"), if the resolution is sufficient. This takes 4 analog 
> video sources and produces 1 analog output with 4 quadrants, which you 
> then digitize on your computer. 

This is interesting, for both solutions.  I'm assuming that this is a hardware device that I plug all the cameras into and then plug the output of the muxer into the bttv card?   That is actually a pretty sweet solution to the problem.



> 
> > Will I need to upgrade the CPU? (I _think_ it depends on the card I 
> > get... if the card does the MPEG on-board, I should be fine... if it 
> > offloads it to the cpu, then I'd need a bigger CPU.) Also, we'll 
> > need some kind of ventilated enclosure so that someone couldn't just 
> > break in and walk off with the CPU. 
> 
> I'm using the quad mux approach on an old 400MHz PII with a vanilla 
> bttv tuner card; it works fine. 
> 
> -- 
> Eric Cooper e c c @ c m u . e d u 
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