Re: PIR Options

["Frank Mc Alinden" <armagh@xxxxxxx>]

Ive forgotten about that . I recall the summers back home as being hot
but
the temp was probably around 25 degrees C .Here some days here hit 
40
degrees C

Frank Mc.

Frank Mc
----- Original Message -----
From: "Rob Mouser" <rmouser@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Thursday, July 18, 2002 10:25 PM
Subject: RE: [ukha_d]PIR Options


> Frank
>
> One major problem, we dont get any hot days, crappy English summer
!!!
> :-(
> (Last couple of days have been OK though, but its set to end any
day.)
>
> Rob
>
> -----Original Message-----
> From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
> Sent: 18 July 2002 13:23
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d]PIR Options
>
>
> Oh but i do love my pulnix sensors though . Seriously though next
time
> you
> have a hot day  do a walk test of your sensors and see how
> they respond .
>
> Frank Mc
> ----- Original Message -----
> From: "psghome2002" <psghome@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Thursday, July 18, 2002 10:17 PM
> Subject: Re: [ukha_d]PIR Options
>
>
> > Kissing a PIR is a test you'd certainly want to do when there's
no
> > one around!
> >
> > --- In ukha_d@y..., "Frank Mc Alinden"
<armagh@b...> wrote:
> > > Actually Paul my thoughts were maybe it has daul contacts
,one for
> > ha
> > > control and one for alarm control . Summer time is a good
test for
> > a  pir .
> > > Go into a room when the ambient temp is around 30 or more
degrees
> > C most
> > > cheap ones you can walk up and just about kiss them before
they
> > will detect
> > > you . I  think the dual tech sensor would be more
sluggish as it
> > would
> > > require both pir + microwave to trip before alarming .
> > >
> > > Frank Mc
> > > ----- Original Message -----
> > > From: "psghome2002" <psghome@h...>
> > > To: <ukha_d@y...>
> > > Sent: Thursday, July 18, 2002 9:00 PM
> > > Subject: Re: [ukha_d]PIR Options
> > >
> > >
> > > > The new PIR sounds interesting - I would imagine it's
being
> > designed
> > > > to address the 'occupancy sensing' issue???
> > > >
> > > > --- In ukha_d@y..., "Frank Mc Alinden"
<armagh@b...> wrote:
> > > > > Hi All
> > > >
>             
I have used many different pir sensors over the
> > years
> > > > as  i
> > > > > worked  on and off in the security industry .
My personal first
> > > > choice is
> > > > > Pulnix sensors and secondly and also IMO a great
detector is
> > the
> > > > Alarmcon
> > > > > 210 sensor and 220 these are now outdated i think
the new ones
> > are
> > > > called
> > > > > 310 + 320 etc but  i used lots of them in
large commercial
> > stores
> > > > here in
> > > > > Melbourne . Also i was speaking via email to the
President of
> > > > Pulnix America
> > > > > ( a Scot) and he said that they were developing a
pir for the
> > HA
> > > > market he
> > > > > wouldnt elaborate but will let me know when its
ready. If your
> > > > interested i
> > > > > have a couple of pics on my site  and a link
to pulnix
> > sensors. I
> > > > also
> > > > > purchase my cctv stuff from them.
www.users.bigpond.com/armagh/
> > > > >
> > > > > Frank Mc
> > > > > ----- Original Message -----
> > > > > From: "psghome2002"
<psghome@h...>
> > > > > To: <ukha_d@y...>
> > > > > Sent: Thursday, July 18, 2002 7:22 PM
> > > > > Subject: Re: [ukha_d]PIR Options
> > > > >
> > > > >
> > > > > > I trialled a few different PIR's for the same
use (there's
> > been a
> > > > > > lot of discussion about this on here before).
I wanted
> > > > the 'perfect
> > > > > > PIR' that had to meet the following
criteria:
> > > > > >
> > > > > > 1) Quick triggering
> > > > > > 2) Stable so as not to give false alarms when
used as
> > security
> > > > PIR
> > > > > > 3) Looks good
> > > > > > 4) Ability to turn On/Off LED
> > > > > > 5) Interchangeable Lens for wide/curtain mode
detection.
> > > > > >
> > > > > > Point 1 is normally part dealt with by user
selectable 'pulse
> > > > count'
> > > > > > i.e. how many detection pattern 'beams' need
to be broken to
> > > > trigger
> > > > > > and the internal logic used by the detector
(and how quick it
> > > > is).
> > > > > > Generally it is best to go for a sensor that
allows a pulse
> > > > count of
> > > > > > between 1 and 4, although most will start at
2 for stability
> > (low
> > > > > > false-alarm) reasons.
> > > > > >
> > > > > > I must say that I have still not found the
ideal sensor - I
> > have
> > > > a
> > > > > > combination of:
> > > > > >
> > > > > > Alarmcom IR120C - look really good, use great
'black mirror'
> > > > > > technology (cutting down susceptibility to
sunlight and other
> > > > > > unwanted radiation) and are very stable but a
little slow to
> > > > trigger
> > > > > > + they are fairly cheap trade.
> > > > > >
> > > > > > Pyronix Magnum Ultra - (existing PIR's in my
house) - OKish
> > > > looking,
> > > > > > seem quite stable and have selectable 1/2/3
pulse count
> > making
> > > > it a
> > > > > > bit quicker to trigger when on 1.
> > > > > >
> > > > > > Optex RX-40QZ - Recommended by Comfort but
I've not tried
> > this
> > > > yet -
> > > > > > only 2/4 pulse count and detection area
doesn't look very
> > dense.
> > > > > >
> > > > > > I think the detection area density is also
important. This
> > is the
> > > > > > pattern of 'detection beams' that spread out
from the sensor
> > and
> > > > how
> > > > > > closely they are spaced. The lower the
density, the further
> > you
> > > > will
> > > > > > have to move to trigger the sensor (depending
on pulse
> > count).
> > > > This
> > > > > > is especially important if you want to detect
occupancy in,
> > say,
> > > > the
> > > > > > living room where you may sit on a sofa for
longish periods
> > of
> > > > time.
> > > > > > A high-density pattern and propper alignment
of the PIR will
> > help
> > > > > > here although you cannot guarantee that the
sensor will pick
> > up
> > > > > > small movements.
> > > > > >
> > > > > > Someone mentioned a dual tech sensor on here
a while ago.
> > > > Generally
> > > > > > these are no good as their trigger time is
pretty poor
> > (long).
> > > > They
> > > > > > use a combination of IR detection and
microwaves. This
> > particular
> > > > > > sensor gave separate outputs for both
sensors, allowing the
> > > > > > (quicker) microwave technology to be used on
it's own. The
> > > > microwave
> > > > > > bit can be difficult as it will apparently
sense through
> > walls
> > > > > > (although I've not tried one) - so siteing is
important.
> > Anyone
> > > > use
> > > > > > these - I'd love to hear if it's
successful.
> > > > > >
> > > > > > Paul.
> > > > > >
> > > > > > --- In ukha_d@y..., "Amar Nagi"
<amar@a...> wrote:
> > > > > > >
> > > > > > > I have homeseer, ocelot and I want to
set up sensors
> > around my
> > > > > > flat to
> > > > > > > indicate when a room is occupied. What
are my options ? I
> > get
> > > > a bit
> > > > > > > confused
> > > > > > > by the range of different sensors
(Pir)
> > > > > > >
> > > > > > > Any recommend anything ? I don't really
want to go for the
> > RF
> > > > x10
> > > > > > route
> > > > > > >
> > > > > > > Ps sorry I used the wrong subject line
b4.
> > > > > >
> > > > > >
> > > > > >
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