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Re: moving away from the remote-control paradigm
- To: ukha_d@xxxxxxx
- Subject: Re: moving away from the remote-control paradigm
- From: patrickl@xxxxxxx
- Date: Wed, 08 Aug 2001 16:46:14 -0000
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
> On the specifics, I'm more interested in being able to anwer "is
this
> room occupied" rather than "who's in it". I'm guessing
that I could
> answer the question "how many in this room" with 98%
accuracy,
though.
How important is the time frame?
It would be relatively easy to build an IR transmitter which you
clipped to yourself and sent a unique code every n seconds. With an
IR receiver in each room, you'd then know not only whether a room was
occupied but who was in each room as well. The obvious pitfalls with
collision avoidance can be dealt with by varying n seconds randomly
+/- a fraction each cycle.
As long as this isn't your only means of detecting presence - it
should be ok. You obviously wouldn't want to use it to switch lights
on, but for setting heating preferences / music choice, routing phone
calls etc. should be ok.
Patrick
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