Gunnar wrote:
>In my opinion a good home automation system has a server in the cellar
>or somewhere else. This should be a quite capable machine, as it can be
Most important a lot of HD space. We are talking atleast 25GBs here IMO.
>b) web- and mailserver (if you have a permanent internet connection)
I think proxy is more important then web, of course a permanent internet
connection would be used, but that would be necisary anyway since the video
and radio would come from it.
>and there are controllers for the hot and cold water tabs, coffee
>machine, everything spread throughout the house where necessary,
Not to forget small microphones that transmit data to the server (if the
noise reach a certain level, sending nothing seems very useless).
>including small machines playing the server-hosted audio and video
>files, "real" (but not necessarily fast) computers, IR transceivers in
>every room for portable equipment, computer-controlled alarm clocks...
Yes, so when do you think it's out in the shops? 10 years? Or do we have to
do it all by ourselves?
>All this is linked somehow. As i do not know very much about networking,
>my suggestion is to have two networks: A fast one like Ethernet-100 for
>computers, video displays and such, and a slower, simpler one like I2C
>for the controller equipment.
The faster info can be sent from the server the better. Otherwise there's a
potential risk that the data sent "clogs up" and delays other transmissions.
I don't know the speed of I2C. But two seperated networks would probably be
the best sollution. But it might be able to use a single one, that would
make it easier to draw the cables.
>On the software side i would suggest Linux as OS for the server,
>whatever you like as OS for the computers, QNX for video players or
>such, and no OS for the controllers (you really do not need an OS for
>just transmitting a state via I2C...)
>That's for the really automation interested people... And you need
>someone to write all that software...
I see you share my dream, if only I had enough money so I could start
experimenting with setting parts of it up (voice recognition not counted
since I don't know a thing about that).
//Bernie
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