[Hai-users] A More "Open" Security/Automation Platform

[Byron Peebles]

Brett, and others:

My thought was I could implement this on a thumb drive and avoid moving 
parts.  I just completed some
work on the Linksys NSLU2 Network Storage device.  It draws 9 watts, 
even with a USB2 "thumb drive"
connected.  A device like the NSLU2 could have a harddrive for your 
"work files" and a thumb drive for
your "run files".  I'm not endorsing the Linksys, but it is an amazingly 
extensible device.  It contains a
266 MHz 32-bit Intel processor and I now have it running as an iTunes 
server.  $80, 9W, plus storage.
(The Linksys comes out-of-the-box underclocked at 133 MHz, but the mod 
for full-speed is trivial.)

Security is always a concern.  If you mean the premise security sensors, 
that's part of my question.  If you
mean security of the system, that's got to be "in the can".

The 12v source is my personal preference.  It runs uninterrupted in the 
event of failure.  Most of the
emergency communications folks I've dealt with are using West Mountain 
Radio "powerpole" installs
that drive 12v equipment off an infrastructure of batteries and 
chargers.  This is how the telephone
company has run their network for decades.  I've been gradually 
migrating my installations to this, too.

Thanks so much for your note!  Byron

Brett Griffin wrote:

>My concern to this type of approach is it is a hard drive that is prone to
>failure, constantly turning.  How would you implement security, or is
>security not a concern?  Why your desire for a battery and no wall wart, do
>you want it mobile? 
>
>-----Original Message-----
>
>I've grown somewhat tired of the proprietary nature of the Aegis 2000 units
>I've been trying to support over the last five years, and my New years
>Resolution is to see if I can find a more "open" platform for future work.
>Now my definition of "open" is possibly a little different:  Linux-based,
>Embedded, with a decent control programming language, like Python or Perl or
>something you can buy a book about.
>
>A good example would be the Linksys NSLU2, which many people have hacked to
>provide Linux access and dedicated services.  So, I would develop my control
>routines in a more documented languages.
>
>Has anyone encountered a more open solution that doesn't require the power
>and administration of a PC?  I'm really thinking embedded is the only way to
>go,.  ( i did fool with the CPU-XA awhile ago - something more complete
>would be nice.)
>
>A plus would be for the unit to run 100% from battery, but have a charger
>instead of a wall wart power cube.
>
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