Re: Home IR Control

[Frank Mc Alinden <Frank.Mc.Alinden.21y9t4@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Robert Green Wrote:
> "Frank Mc Alinden" wrote:
>
>
> Hi Bobby
>
>
> >The problem I have with SAF is that X-10 gear will plunge
> >people into darkness if they stop moving.  Your system feature
> reminded me
> >that if I am going to keep the lites from going out, I need to
> monitor
> >things like IR activity in a room.
>
> I made a prototype  probe for my probe system which i called a "Vacany
> Probe".....It has a small very sensitive pir head attached to it and
> also an ir receiver..so if either movement or ir detected it would
> retrigger a 5 minute timer ....Homevision  would  request the status of
> this probe every 5 minutes  and update a counter as required...If no
> movement or ir  after 15 minutes the lights would be turned off.......
>
> >"The Busy led is quite useful as it indicates to users in All zones
> that ir
> >is being transmitted by someone and therefore not to send ir until the
> red
> >led extinguishes."
>
> Yes this is quite useful indeed....I can also tell if Homevision has
> recognised the ir signal that was sent by  how long the busy indicator
> is on....If received ok it will stay on for less than a second...if not
> approx 5 seconds .......
>
> Need to remember though my system is a " ir transport system" it does
> not decode or encode any ir signals....Homevision does this in my
> case....
>
> I also have a prototype serial interface which allows xPL to send tx
> zone commands and also reports to xPL which zone the ir signal came
> from...in this setup i have used the USBUIRT as the ir decoder/encoder
> as it has an xPL plugin.........
>
> >Thanks for the info.  What's the conversion rate between AU and US
> these
> >days?
>
> The Oz dollar is approx  75 cents US...
>
> HTH
> Frank


--
Frank Mc Alinden