Re: [Motion-user] Help spec a security system

[Peter M. <pet...@go...>]

2007/12/10, Daniel Kasak <da...@en...>:
>
> Greetings.
>
> I'm spec'ing a security system for the block of units I live in. It will
> be a dedicated server, maybe built from 2nd-hand parts, maybe new,
> depending on requirements.
>
> I want 3 video sources minimum. I'll add more depending on costing.
>
> I want decent quality images, so we can identify people in the event of
> an issue. I'm open to suggestion on the type of camera here. I can
> imagine the cameras being between 1 metre and 10 metres from the action
> they're filming. What sort of camera do I need for these requirements?
> Are USB cameras good enough?
>
> Finally, CPU requirements. Since I have no experience with this, I have
> no idea what FPS I should be encoding at. As for resolution, probably
> 400x300 would be a minimum ( I assume ) for a decent enough image to
> identify someone. Assuming I'm encoding from, say, 3 sources, at
> whatever FPS you recommend, what kind of CPU am I looking at? I'll take
> a really wild guess and say 3 video streams @ 400x300 @ 8 fps might
> require something like an Athlon 1600XP or so?
>
> Thanks.
>
> Dan
>
>
>
Dan,

I=B4m using a Kodicom 4400R 4channel / 4chip bt878 capture card with 4 came=
ras
with 400x300 @ 25fps each (100fps total), system used to be a Sempron 2800
and now is a Athlon 64 3000+. The Sempron cpu came to it=B4s limits while
recording all four channels and watching them at the same time (via webcam
port - cambozola), the athlon runs fine, it even provides 4x25fps live
picture with the mplayer plugin.

I hope that helps.

regards,
Peter Marquardt