Looks
like
an interesting challenge
Count
me
in
Oh, and we
need a
name for the project along the lines of KAT5.
Suggestions
welcome.
How about
Ha_d1
Mike Griffiths
-----Original
Message-----
From: Bird, Ian
[mailto:ian.bird@xxxxxxx]
Sent: Tue 27 March 2001
14:10
To: 'ukha_d@xxxxxxx'
Subject: RE: [ukha_d] BIK
Sensor -
who is interested?
It's fun though......
I know Bik stopped selling these as a kit and I suspect it was because
they
are tricky to set up. Could be a challenge ahead.
Ian
> -----Original Message-----
> From: Kenneth Watt [mailto:kennethwatt@xxxxxxx]
> Sent: 27 March 2001 13:29
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] BIK Sensor - who is interested?
>
>
> Ian,
>
> Thanks for the kind offer of having some boards made,
> I would definetly be interested in some of them.
>
> You might have let yourself in for more than you
> bargained for though :o)
>
> Thanks again.
>
> K.
>
> --- Ian B <I.Bird@xxxxxxx> wrote: > The testing
I
> have done so far has revealed:
> >
> > 1) Your house earth has to be good as this is used
> > as a reference when the
> > unit operates. (Ian's task number one - bury a large
> > lump of stainless
> > somewhere and connect it to the house earth. In the
> > short term I am watering
> > my earth stake!!! Wifey thinks I am mad).
> >
> > 2) They are easier to set up and more accurate if
> > you cover smaller areas. A
> > large room would need more than one sensor - cool
> > for location sensing.
> >
> > 3) You can have more than one overlapping as the
> > aerial length determines
> > the frequency (or something like that). Alter the
> > aerial length slightly and
> > there is no interferencebetween sensors.
> >
> > 4) They only detect presence within the aerials.
> > When testing on the kitchen
> > table I could virtually touch the aerial from
> > outside with no effect. Move
> > in between the wires and instant detection.
> >
> > 5) They detect in a sort of bubble shape between the
> > two aerials. It would
> > detect my hand quite high above the kitchen table
> > (read test bench) but
> > lower as I got nearer the aerials themselves.
> >
> > 6) They detect presence in one of two ways which
> > means you can detect
> > someone touching the ground or lying on the sofa but
> > not both with the same
> > detector. You would need two, one for each activity.
> >
> > There is loads more info on the above points in the
> > Bik documentation.
> >
> > Having looked at the board I made I would like to
> > get all the components
> > together before finalising anything. I suspect it
> > would be worth my while to
> > recreate this circuit in my design package and then
> > reproduce the boards. It
> > may even be worth getting a batch made 'properly' if
> > there is enough
> > interest.
> >
> > Personally I like them so, send me a note if you're
> > interested and I will
> > work with everyone to get some made.
> >
> > Ian
> >
> > -----Original Message-----
> > From: Phillip Harris
> > [mailto:phillip.harris1@xxxxxxx]
> > Sent: 25 March 2001 16:14
> > To: I.Bird@xxxxxxx
> > Subject: RE: [ukha_d] BIK Sensor
> >
> >
> >
> > Could you possibly run up a board for me too? Let me
> > know what I owe you for
> > doing so if you can. Have you have problems sourcing
> > any components?
> > Occupancy sensing is proving to be a nightmare
> > challenge!
> >
> > I know you said you had one of these already ... how
> > good are they for
> > sensing within a room? Do they have blind spots? Are
> > they affected by
> > movement in other rooms (given that they're RF I
> > believe).
> >
> > > -----Original Message-----
> > > From: Ian B [mailto:I.Bird@xxxxxxx]
> > > Sent: 25 March 2001 14:33
> > > To: ukha_d@xxxxxxx
> > > Subject: RE: [ukha_d] BIK Sensor
> > >
> > >
> > > In the process of making on now. I'll report
back
> > when it is
> > > done. I am not
> > > planning to assemble it, just make the board. I
> > will send it off to Stuart
> > > Grimshaw for the pleasure of building it.
> > >
> > > I have no doubt we will post details of how it
> > went laeter.
> > >
> > > Kenneth: if you would like one of them then let
me
> > know and I
> > > will make one
> > > for you. The more the merrier...........
> > >
> > > Ian
> > >
> > > -----Original Message-----
> > > From: Kenneth Watt
> > [mailto:kennethwatt@xxxxxxx]
> > > Sent: 25 March 2001 10:32
> > > To: UKHA
> > > Subject: [ukha_d] BIK Sensor
> > >
> > >
> > > If anyone is having boards printed for this
sensor
> > please let me know.
> > >
> > > Ta
> > >
> > > Kenneth
> > >
> > >
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
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> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
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> > >
> > >
> >
> >
> >
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>
> > ATTACHMENT part 2 image/jpeg name=Bik web1.jpg
>
>
>
>
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