RE: PIR's

["Mark Harrison" <Mark.Harrison@xxxxxxx>]

Get Homevision?

:-)

Seriously, I think that you _WILL_ need some sort of add-on hardware for th= is. There are several people on the group who are MUCH better qualified tha= n I.

Or, you could get a hardware trigger that you plugged your PIR into, which = sent an xAP message over ethernet.

M.

-----Original Message-----
From: Alex Monaghan [mailto:alex@xxxxxxx]
Sent: 30 August 2002 16:30
To: ukha_d@xxxxxxx Subject: RE: [ukha_d] PIR's


Any advise on how I can read the PIR status etc... on a PC ?

> -----Original Message-----
> From: Mark Harrison [mailto:Mark.Harrison@xxxxxxx]
> Sent: 30 August 2002 16:26
> To: ukha_d@xxxxxxx > Subject: RE: [ukha_d] PIR's
>
>
> Go for the hard-wired route then. The X-10 one is REALLY only for
> those who can't get wires in :-(
>
> -----Original Message-----
> From: Alex Monaghan [mailto:alex@xxxxxxx]
> Sent: 30 August 2002 16:21
> To: ukha_d@xxxxxxx > Subject: RE: [ukha_d] PIR's
>
>
> I'm still lifting floorboards at the moment, so an additional PIR wire= is
> not a problem.
>
> The idea would be to use the PC to determine whether to trigger an ala= rm
> event or an X10 action, we have no pets etc... so an empty house shoul= d
> (hopefully) have no PIR events. Security is an additional benefit of > installing PIR's, the main reason is for HA.
>
> > -----Original Message-----
> > From: Mark Harrison [mailto:Mark.Harrison@xxxxxxx]
> > Sent: 30 August 2002 16:11
> > To: ukha_d@xxxxxxx > > Subject: RE: [ukha_d] PIR's
> >
> >
> > Alex,
> >
> > I went the X10 route about a year ago... and I haven't needed to<= BR> > > replace the batteries yet (used Duracell). However, these are in<= BR> > > rooms with very little movement.
> >
> > With X10, you have the latency problem of sending an X10 message<= BR> > > before you can act on anything. As such, my goal is to move to > > beam-break + PIR.
> >
> > In an ideal world, I'd use hard-wired PIRs, in may case, back to<= BR> > > HomeVision. I guess that a lot hinges on whether you've got
> > suitable wiring in place.
> >
> > Finally, I keep the PIRs for the security system (which ARE
> > hard-wired) completely separate from those I use for HA. I can > > cope with HA being unreliable (1 or 2 times a year). I don't want=
> > the alarm being that unreliable.
> >
> > Regards,
> >
> > Mark
> >
> > -----Original Message-----
> > From: Alex Monaghan [mailto:alex@xxxxxxx]
> > Sent: 30 August 2002 16:07
> > To: ukha_d@xxxxxxx > > Subject: [ukha_d] PIR's
> >
> >
> > I'm in the process of rewiring and making the new installation > > X10 & general
> > HA ready.
> >
> > I've been toying with the idea of having PIR's in rooms to
> > generate triggers
> > so that I can activate lights or even generate an alarm. Not
> knowing much
> > about PIR's (other than they can detect movement and are
> generally used on
> > alarm systems), I'm after a bit of advise.
> >
> > I'm looking at 2 options,
> >
> > The 1st being the RF based X10 devices, this would be easy to
> > detect on a PC
> > via the CM12 interface and necessary X10 RF interface, but these = are =A330
> > each and 14 of these - big house :-) wouldn't be cheap.
> > How long is battery life in these units ?
> >
> > Alternatively, how easy is it to interface some ordinary burglar<= BR> > > alarm type
> > of PIR's (Maplin, Screwfix etc... have these at =A310 each) to a = PC
> > (it'll be
> > running a flavour of UNIX or BSD and a simple bit of software
> development
> > would be acceptable if needed)
> >
> > Is it easy to distinguish a small movement from a large movement,= for
> > example rolling over in bed or sitting up and getting out of bed<= BR> > > to go for a
> > pee ? If the light came on every time the SWMBO rolled over I'd > > very quickly
> > have to start uninstalling the HA stuff :-( but if a there was > nice dimmed
> > light route to the bathroom, then some real benefit from HA
> could be seen
> > and I get to keep my toys :-)
> >
> > Any suggestions or pointers to web sites ?
> >
> >
> >
> > http://www.automatedho= me.co.uk
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>
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