Re: moving away from the remote-control paradigm

[Stuart Grimshaw <stuart@xxxxxxx>]

What you want are occupancy sensors, like the BIK sensors, which detect
occupancu rather than movement.

I have one 95% constructed so expect a report sometime.

On Wednesday 08 August 2001 16:45 pm, Mark McCall wrote:
> Remember reading way back at the start about this guy that had two IR
beams
> in his door frame.  Order they were broken in gave direction of travel
and
> central controller kept a count of people as they went in and out so
it
> didn't turn lights out until it knew there was no one left in the
room.
>
> He couldn't figure out why lights were still on one time and no one
was in
> the room.  Then he remembered he'd carried a chair into the room which
was
> slightly in front of him and seen as another person :-)
>
> Nothing's perfect in this game.
>
> M.
>
>   ----- Original Message -----
>   From: Mark Harrison
>   To: ukha_d@xxxxxxx
>   Sent: Wednesday, August 08, 2001 4:39 PM
>   Subject: RE: [ukha_d] moving away from the remote-control paradigm
>
>
>   Kieran,
>
>   Thanks.
>
>   Is there some way of sensing not just that I've been through a
doorway
>   (broken a beam), but to tell which DIRECTION I was going in.
>
>   Given that there are only 2 of us in the house, it wouldn't be
beyond
>   the wit of man to be able to say that "person enters
room", ROOM IS NOW
>   OCCUPIED, "person enters room", "person leaves",
"person leaves", ROOM
>   IS NOW EMPTY ... type of thing, but this is contingent on being able
to
>   detect the diffence between "enters" and
"leaves".
>
>   Regards,
>
>   Mark Harrison
>   Head of Systems, eKingfisher
>
>         Yahoo! Groups Sponsor
>
>
>
>
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>   http://www.automatedhome.co.uk
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--

Stuart Grimshaw <stuart@xxxxxxx>
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