sane-project-website/old-archive/1999-02/0238.html

70 wiersze
3.4 KiB
HTML

This file contains invisible Unicode characters!

This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.

<!-- received="Sun Feb 28 14:00:17 1999 PST" -->
<!-- sent="Mon, 1 Mar 1999 08:58:57 +1100 (EST)" -->
<!-- name="Nathan Hand" -->
<!-- email="nathanh@wookie.chirp.com.au" -->
<!-- subject="multiple cams" -->
<!-- id="" -->
<!-- inreplyto="" -->
<title>sane-devel: multiple cams</title>
<h1>multiple cams</h1>
<b>Nathan Hand</b> (<a href="mailto:nathanh@wookie.chirp.com.au"><i>nathanh@wookie.chirp.com.au</i></a>)<br>
<i>Mon, 1 Mar 1999 08:58:57 +1100 (EST)</i>
<p>
<ul>
<li> <b>Messages sorted by:</b> <a href="date.html#238">[ date ]</a><a href="index.html#238">[ thread ]</a><a href="subject.html#238">[ subject ]</a><a href="author.html#238">[ author ]</a>
<!-- next="start" -->
<li> <b>Next message:</b> <a href="0239.html">Oliver Rauch: "Re: 16-bit frames and interleaving"</a>
<li> <b>Previous message:</b> <a href="0237.html">Nick Lamb: "Scanimage -T backend tester [patch]"</a>
<!-- nextthread="start" -->
<!-- reply="end" -->
</ul>
<!-- body="start" -->
There have been a couple of recent burglaries in the neighbouring offices<br>
and I'm interested in putting some cheap b&amp;w cameras in my office, mostly<br>
as a deterrent but also for storing photo evidence to help out the police<br>
if (god forbid) my offices are burgled as well.<br>
<p>
It looks reasonably easy to use SANE to connect up one camera and use the<br>
sanecgi software to store continuously running images. I'd then upload my<br>
images to an offsite server (in case the servers stolen). So 1st question<br>
is: what cameras do people recommend for this sort of application?<br>
<p>
Cheap is preferred, but keeping CPU costs low is also important. I have a<br>
small battery of servers, but I'd like to keep all this scanning software<br>
on a single machine, probably a PII-333 running Linux, which will also be<br>
doing a number of other things. Another issue is cable length (need 10m).<br>
<p>
I'd also like to use multiple cameras, possibly 4 of them. Does this rule<br>
out parallel port cameras (ie, would the CPU usage sky rocket)? Would the<br>
scanners require a dedicated server (I have no idea about the bandwidth I<br>
would need here)? Are there camera "chains" designed for this purpose?<br>
<p>
I've looked at the dedicated camera/vcr setups but was unimpressed. It is<br>
impossible to monitor the cameras from the web, and getting offsite video<br>
storage costs an arm and a leg, far more (I think) than even buying a new<br>
dedicated server just for scanning and paying for additional bandwidth.<br>
<p>
What else am I missing? I've never had a scanner before, let alone one of<br>
these new fangled "computer cameras". I'd appreciate any advice.<br>
<p>
<pre>
--
Nathan Hand - Chirp Web Design - <a href="http://www.chirp.com.au/">http://www.chirp.com.au/</a> - $e^{i\pi}+1 = 0$
Phone: +61 2 6230 1871 Fax: +61 2 6230 4455 E-mail: <a href="mailto:nathanh@chirp.com.au">nathanh@chirp.com.au</a>
<p>
<p>
<pre>
--
Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a>
</pre>
<!-- body="end" -->
<p>
<ul>
<!-- next="start" -->
<li> <b>Next message:</b> <a href="0239.html">Oliver Rauch: "Re: 16-bit frames and interleaving"</a>
<li> <b>Previous message:</b> <a href="0237.html">Nick Lamb: "Scanimage -T backend tester [patch]"</a>
<!-- nextthread="start" -->
<!-- reply="end" -->
</ul>