RE: Occupancy Detection

["Jonathan Twyford" <ukha@xxxxxxxxxxxxxxxxx>]

Frank

> Not yet ;-)....When i was an apprentice back in the seveties ( in
N.I.)  i
> use to buy components from them....When i joined the list and people
posted
> emails referring to Craplins i thought there was another component
dist ;-))
> ........

Well I am surprised I haven't been blocked from the list for mentioning
them :-)

> Are you using them for Occupancy detection ???

In a way I am. I am experimenting with my own system, If it is not
triggered for 10 minutes the PIC it interfaces to reports that there is
no one present. So where it is positioned facing my desk it will pick up
my motion but further then 4 meters away it can be a bit hit and miss
depending on the amount of motion. I am currently trying to find a
sensor I heard about that works off body temperature rather then PIR
motion.

Jon

-----Original Message-----
From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
Sent: 19 November 2004 23:02
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Occupancy Detection

Hi Jon

> Hasn't Maplins world domination of the world reached Oz yet ;-)

Not yet ;-)....When i was an apprentice back in the seveties ( in N.I.)
i
use to buy components from them....When i joined the list and people
posted
emails referring to Craplins i thought there was another component dist
;-))
........

> The range of them is not that good, I would say up to 4 meters to be
> reliable with small amounts of motion, but within that distance I
can't
> fault them. I have one that covers my desk, and it is constantly
> triggering even when I am just typing at my computer.

Are you using them for Occupancy detection ???

Frank




----- Original Message -----
From: "Jonathan Twyford" <ukha@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Saturday, November 20, 2004 9:51 AM
Subject: RE: [ukha_d] Occupancy Detection


>
>
>
> > Thats good to hear .....Since im based inMelbourne ( Oz)  its
easier
> to
> > source from Ozitonics...
>
>
> Hasn't Maplins world domination of the world reached Oz yet ;-)
>
> > Are they sensitive Jon ???
>
> The range of them is not that good, I would say up to 4 meters to be
> reliable with small amounts of motion, but within that distance I
can't
> fault them. I have one that covers my desk, and it is constantly
> triggering even when I am just typing at my computer.
>
> Jon
>
>
>
> -----Original Message-----
> From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
> Sent: 19 November 2004 22:23
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Occupancy Detection
>
> Hi Jon
>
> >             These can also be purchased from maplins (YD85G) at
7.99
> > each. I have tried these and found them very good.
>
> Thats good to hear .....Since im based inMelbourne ( Oz)  its easier
to
> source from Ozitonics...
> Are they sensitive Jon ???
> Thanks
> Frank
>
>
> ----- Original Message -----
> From: "Jonathan Twyford" <ukha@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Saturday, November 20, 2004 9:14 AM
> Subject: RE: [ukha_d] Occupancy Detection
>
>
> >
> >             Frank
> >
> >             These can also be purchased from maplins (YD85G) at
7.99
> > each. I have tried these and found them very good.
> >
> >             Cheers
> >
> >             Jon
> >
> > -----Original Message-----
> > From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
> > Sent: 19 November 2004 21:22
> > To: ukha_d@xxxxxxx
> > Subject: [ukha_d] Occupancy Detection
> >
> > Hi All
> >         Im currently using my security pirs for Security  and
> Occupancy
> > detection but find that they are not responsive enough for
Occupancy
> > detection  at times .....Im thinking of using a little 5v pir
head
> and
> > connect it into my Probe system (no need for further
wiring)....The
> > Probe
> > system normally reports the status of Probes when
"Requested" this
> > obviously
> > isnt suitable ...so i intend to dedicate Probe 6 in each Zone for
> > "Occupancy
> > Pir" and then continually Poll probe 6 on each zone and
report back
to
> > Homevision / xPL via the i/o and serial interfaces the status of
each
> > pir....
> > and hopefully i will have a more reliable Occupancy detection
> > system....So
> > im hoping the little pir heads are quite sensitive..
> >
> > Check out the link for the little pir heads...under security and
> > survellience part number k76
> > http://www.ozitronics.com/
> >
> > More Soon
> > Frank
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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