Re: Re: X10 Motion detection

[ian.bird@xxxxxxxxxxxxxxxxxxxxxxx]

Not quite true. You are correct as far as you go but occupancy ones tend
to be a lot more sensitive than the 'standard' ones and of course a bit
more expensive. A lot of them have different fields of view too e.g.
overhead looking down 360 type. Lots of choices ;-))

Ian






"Marcus Warrington" <marcusw@xxxxxxx>
21/06/2004 14:02
Please respond to ukha_d


To:     <ukha_d@xxxxxxx>
cc:
Subject:        [ukha_d] Re: X10 Motion detection


Thanks to everyone for the advice on PIRs for room occupancy.

Since the only difference between occupancy and alarm PIR is the pulse
count, I assume that I could set them to trigger on a single pulse but
then set the "controller" (i.e. PC) to ignore any
"false" single counts ?

I'm thinking of also putting some IR receivers (and possible transmitters)
in the ceiling, can these be run on the same piece of cat5e as the PIR
(like running Telephone and Ethernet over a single cat5e cable) ?

Thanks

Marcus






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