Problem, Solution = gerbils??

  • Thread starter Watson A.Name - \"Watt Su
  • Start date
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Watson A.Name - \"Watt Su

Guest
I and probably a lotta other people have a chronic problem that is in
need of a simple solution. We're about to move into a new bldg and I
have to do a lotta install'ns of PCs, etc., so I'm under the desk a lot.
Every room in the new bldg has the motion sensors that turn off the
lights after a few minutrd, and I have to continually get up and wave my
arms to reactivate the sensors.

Some of the sensors are PIR motion detectors, and some are ultrasonic.
The US ones could be fooled with a fan in front of the sensor, But how
can I fool a PIR motion sensor? I have to have a warm, moving body in
front of the sensor, maybe a caged animal? Or a long wave IR generator
that moves or generates an intermittent output. I've ruled out candles
or other flames for safety reasons. A friend suggested a Lavalamp might
work, but I don't think I want to wait ten or twenty minutes to warm it
up. Maybe one of those old lamps with the rotating picture and fan
blades on top, that turns by convection currents from the light bulb
heat. I know that the IR output from IR LEDs is much too short a
wavelenght. Any ideas? Thanks.

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
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Watson A.Name - "Watt Sun, the Dark Remover" wrote:

[snip]

up. Maybe one of those old lamps with the rotating picture and fan
blades on top, that turns by convection currents from the light bulb
heat. I know that the IR output from IR LEDs is much too short a
wavelenght. Any ideas? Thanks.
Click to expand...
A candle? Or would the flicker not be enough?
 
On Sun, 11 Jul 2004 16:11:43 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:

I and probably a lotta other people have a chronic problem that is in
need of a simple solution. We're about to move into a new bldg and I
have to do a lotta install'ns of PCs, etc., so I'm under the desk a lot.
Every room in the new bldg has the motion sensors that turn off the
lights after a few minutrd, and I have to continually get up and wave my
arms to reactivate the sensors.

Some of the sensors are PIR motion detectors, and some are ultrasonic.
The US ones could be fooled with a fan in front of the sensor, But how
can I fool a PIR motion sensor? I have to have a warm, moving body in
front of the sensor, maybe a caged animal? Or a long wave IR generator
that moves or generates an intermittent output. I've ruled out candles
or other flames for safety reasons. A friend suggested a Lavalamp might
work, but I don't think I want to wait ten or twenty minutes to warm it
up. Maybe one of those old lamps with the rotating picture and fan
blades on top, that turns by convection currents from the light bulb
heat. I know that the IR output from IR LEDs is much too short a
wavelenght. Any ideas? Thanks.
Click to expand...
3' long board with incandescent light bulbs on each end, plus a timer
to cycle them appropriately ???

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
 
Jim Thompson <thegreatone@example.com> says...
"Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:

I and probably a lotta other people have a chronic problem that is in
need of a simple solution. We're about to move into a new bldg and I
have to do a lotta install'ns of PCs, etc., so I'm under the desk a lot.
Every room in the new bldg has the motion sensors that turn off the
lights after a few minutrd, and I have to continually get up and wave my
arms to reactivate the sensors.

Some of the sensors are PIR motion detectors, and some are ultrasonic.
The US ones could be fooled with a fan in front of the sensor, But how
can I fool a PIR motion sensor? I have to have a warm, moving body in
front of the sensor, maybe a caged animal? Or a long wave IR generator
that moves or generates an intermittent output. I've ruled out candles
or other flames for safety reasons. A friend suggested a Lavalamp might
work, but I don't think I want to wait ten or twenty minutes to warm it
up. Maybe one of those old lamps with the rotating picture and fan
blades on top, that turns by convection currents from the light bulb
heat. I know that the IR output from IR LEDs is much too short a
wavelenght. Any ideas? Thanks.

3' long board with incandescent light bulbs on each end, plus a timer
to cycle them appropriately ???
Click to expand...
^That would work. I would put two or three bulbs in series ay each
end to reduce annoying visible light output and to make the bulbs
last practically forever.

--
Guy Macon, Electronics Engineer & Project Manager for hire.
Remember Doc Brown from the _Back to the Future_ movies? Do you
have an "impossible" engineering project that only someone like
Doc Brown can solve? My resume is at http://www.guymacon.com/
 
"Randy Day" <ruthal@sasktel.nex> wrote in message
news:10f3i7b67a05j71@corp.supernews.com...
Watson A.Name - "Watt Sun, the Dark Remover" wrote:

[snip]

up. Maybe one of those old lamps with the rotating picture and fan
blades on top, that turns by convection currents from the light bulb
heat. I know that the IR output from IR LEDs is much too short a
wavelenght. Any ideas? Thanks.

A candle? Or would the flicker not be enough?
Click to expand...
As I stated, and you deleted, I would *not* consider candles and flames
because of safety and fire concerns. Thanks, anyway.
 
"Jim Thompson" <thegreatone@example.com> wrote in message
news:8ri3f01kc3u2tt1e5fmjg8ukbfg9mko00n@4ax.com...
On Sun, 11 Jul 2004 16:11:43 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:

I and probably a lotta other people have a chronic problem that is in
need of a simple solution. We're about to move into a new bldg and I
have to do a lotta install'ns of PCs, etc., so I'm under the desk a
lot.
Every room in the new bldg has the motion sensors that turn off the
lights after a few minutrd, and I have to continually get up and wave
my
arms to reactivate the sensors.

Some of the sensors are PIR motion detectors, and some are
ultrasonic.
The US ones could be fooled with a fan in front of the sensor, But
how
can I fool a PIR motion sensor? I have to have a warm, moving body
in
front of the sensor, maybe a caged animal? Or a long wave IR
generator
that moves or generates an intermittent output. I've ruled out
candles
or other flames for safety reasons. A friend suggested a Lavalamp
might
work, but I don't think I want to wait ten or twenty minutes to warm
it
up. Maybe one of those old lamps with the rotating picture and fan
blades on top, that turns by convection currents from the light bulb
heat. I know that the IR output from IR LEDs is much too short a
wavelenght. Any ideas? Thanks.

3' long board with incandescent light bulbs on each end, plus a timer
to cycle them appropriately ???

...Jim Thompson
--
Click to expand...
I take it you mean an astable flip-flop that drives the lamps
alternately. I'm wondering if the abrupt switching will keep the PIR
sensor triggered. I'm thinking that long wave IR would come from a lamp
that's not even glowing visibly. Maybe just a dull glow. Since the IR
all goes into the same sensor, are two separate IR sources really
needed? Maybe I should experiment with just a single lamp..
 
"Watson A.Name -

I take it you mean an astable flip-flop that drives the lamps
alternately. I'm wondering if the abrupt switching will keep the PIR
sensor triggered. I'm thinking that long wave IR would come from a lamp
that's not even glowing visibly. Maybe just a dull glow. Since the IR
all goes into the same sensor, are two separate IR sources really
needed? Maybe I should experiment with just a single lamp..
Click to expand...

** A PIR sensor is a passive infrared **movement** detector - so they do
not respond to fixed lights being turned on and off in the usual way. They
might respond to a flashing light though - if you get the rate right.





......... Phil
 
Watson A.Name - "Watt Sun, the Dark Remover" wrote:

[snip]

As I stated, and you deleted, I would *not* consider candles and flames
because of safety and fire concerns. Thanks, anyway.
Click to expand...
Oops. That'll teach me to skim a bit more closely...
 
"Watson A.Name - "Watt Sun, the Dark Remover""
<NOSPAM@dslextreme.com> wrote in message
news:10f3vv7j4k8pq07@corp.supernews.com...
:
: "Phil Allison" <philallison@tpg.com.au> wrote in message
: news:40f1f943$1@dnews.tpgi.com.au...
: >
: > "Watson A.Name -
: >
: > > I take it you mean an astable flip-flop that drives the
lamps
: > > alternately. I'm wondering if the abrupt switching will
keep the
: PIR
: > > sensor triggered. I'm thinking that long wave IR would
come from a
: lamp
: > > that's not even glowing visibly. Maybe just a dull glow.
Since the
: IR
: > > all goes into the same sensor, are two separate IR sources
really
: > > needed? Maybe I should experiment with just a single
lamp..
: > >
: >
: >
: > ** A PIR sensor is a passive infrared **movement**
etector - so
: they do
: > not respond to fixed lights being turned on and off in the
usual way.
: They
: > might respond to a flashing light though - if you get the
rate
: right.
:
: Maybe a lamp behind a slowly rotating fan? Maybe a lamp
reflected off a
: moving mirror?

Why not just remove the cover and flip
the override switch?

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me



---
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Checked by AVG anti-virus system (http://www.grisoft.com).
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"Phil Allison" <philallison@tpg.com.au> wrote in message
news:40f1f943$1@dnews.tpgi.com.au...
"Watson A.Name -

I take it you mean an astable flip-flop that drives the lamps
alternately. I'm wondering if the abrupt switching will keep the
PIR
sensor triggered. I'm thinking that long wave IR would come from a
lamp
that's not even glowing visibly. Maybe just a dull glow. Since the
IR
all goes into the same sensor, are two separate IR sources really
needed? Maybe I should experiment with just a single lamp..



** A PIR sensor is a passive infrared **movement** detector - so
they do
not respond to fixed lights being turned on and off in the usual way.
They
might respond to a flashing light though - if you get the rate
right.
Click to expand...

Maybe a lamp behind a slowly rotating fan? Maybe a lamp reflected off a
moving mirror?

> ........ Phil
 
"Watson A.Name "
"Phil Allison"

** A PIR sensor is a passive infrared **movement** detector - so
they do not respond to fixed lights being turned on and off in the usual
way.
They might respond to a flashing light though - if you get the rate
right.

Maybe a lamp behind a slowly rotating fan? Maybe a lamp reflected off a
moving mirror?
Click to expand...

** Or maybe a lamp with a a row of dancing girls in front ??




........... Phil
 
"Bill Garber" <willy46pa@comcast DOT net> wrote in message
news:QcidnZGdePtQnW_d4p2dnA@comcast.com...
"Watson A.Name - "Watt Sun, the Dark Remover""
NOSPAM@dslextreme.com> wrote in message
news:10f3vv7j4k8pq07@corp.supernews.com...
:
: "Phil Allison" <philallison@tpg.com.au> wrote in message
: news:40f1f943$1@dnews.tpgi.com.au...
:
: > "Watson A.Name -
:
: > > I take it you mean an astable flip-flop that drives the
lamps
: > > alternately. I'm wondering if the abrupt switching will
keep the
: PIR
: > > sensor triggered. I'm thinking that long wave IR would
come from a
: lamp
: > > that's not even glowing visibly. Maybe just a dull glow.
Since the
: IR
: > > all goes into the same sensor, are two separate IR sources
really
: > > needed? Maybe I should experiment with just a single
lamp..
:
:
:
: > ** A PIR sensor is a passive infrared **movement**
etector - so
: they do
: > not respond to fixed lights being turned on and off in the
usual way.
: They
: > might respond to a flashing light though - if you get the
rate
: right.
:
: Maybe a lamp behind a slowly rotating fan? Maybe a lamp
reflected off a
: moving mirror?

Why not just remove the cover and flip
the override switch?
Click to expand...
I suppose I could do that for one room with a lot of PCs. But I'd
probably spend too much time diong that if I have a few dozen rooms to
do, each with a one or two PCs. The newer switches don't have
ON-Auto-OFF, just Auto and Off, so one can't defeat the sensor. I've
opened up switches to adjust the sensitivity or time, but I've never
seen one with an overrride. It sure would be convenient if I had a box
that I could just carry from one room to another. Thanks.

> Bill @ GarberStreet Enterprizez };-)
 
"Phil Allison" <philallison@tpg.com.au> wrote in message
news:40f2044e$1@dnews.tpgi.com.au...
"Watson A.Name "
"Phil Allison"

** A PIR sensor is a passive infrared **movement** detector -
so
they do not respond to fixed lights being turned on and off in the
usual
way.
They might respond to a flashing light though - if you get the
rate
right.

Maybe a lamp behind a slowly rotating fan? Maybe a lamp reflected
off a
moving mirror?



** Or maybe a lamp with a a row of dancing girls in front ??
Click to expand...
Girls or gerbils, I'd settle for any warm body. Just as long as its's
moving. But I'd have to pay the girls for their time...

.......... Phil
Click to expand...
 
"Watson A.Name - "Watt Sun, the Dark Remover""
<NOSPAM@dslextreme.com> wrote in message
news:10f42lu14b75vdc@corp.supernews.com...
:
: "Bill Garber" <willy46pa@comcast DOT net> wrote in message
: news:QcidnZGdePtQnW_d4p2dnA@comcast.com...
: >
: > "Watson A.Name - "Watt Sun, the Dark Remover""
: > <NOSPAM@dslextreme.com> wrote in message
: > news:10f3vv7j4k8pq07@corp.supernews.com...
: > :
: > : "Phil Allison" <philallison@tpg.com.au> wrote in message
: > : news:40f1f943$1@dnews.tpgi.com.au...
: > : >
: > : > "Watson A.Name -
: > : >
: > : > > I take it you mean an astable flip-flop that drives the
: > lamps
: > : > > alternately. I'm wondering if the abrupt switching
will
: > keep the
: > : PIR
: > : > > sensor triggered. I'm thinking that long wave IR would
: > come from a
: > : lamp
: > : > > that's not even glowing visibly. Maybe just a dull
glow.
: > Since the
: > : IR
: > : > > all goes into the same sensor, are two separate IR
sources
: > really
: > : > > needed? Maybe I should experiment with just a single
: > lamp..
: > : > >
: > : >
: > : >
: > : > ** A PIR sensor is a passive infrared **movement**
: > etector - so
: > : they do
: > : > not respond to fixed lights being turned on and off in
the
: > usual way.
: > : They
: > : > might respond to a flashing light though - if you get
the
: > rate
: > : right.
: > :
: > : Maybe a lamp behind a slowly rotating fan? Maybe a lamp
: > reflected off a
: > : moving mirror?
: >
: > Why not just remove the cover and flip
: > the override switch?
:
: I suppose I could do that for one room with a lot of PCs. But
I'd
: probably spend too much time diong that if I have a few dozen
rooms to
: do, each with a one or two PCs. The newer switches don't have
: ON-Auto-OFF, just Auto and Off, so one can't defeat the sensor.
I've
: opened up switches to adjust the sensitivity or time, but I've
never
: seen one with an overrride. It sure would be convenient if I
had a box
: that I could just carry from one room to another. Thanks.

True, most newer ones only can be set OFF.
How about a cheap pendulum clock on a stand?
It would constantly be moving over the sensor.

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me



---
This email ain't infected, dude!

Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.708 / Virus Database: 464 - Release Date: 6/19/04
 
"Bill Garber" <willy46pa@comcast DOT net> wrote in message
news:sYOdnV2Sv5BshW_dRVn-uA@comcast.com...
"Watson A.Name - "Watt Sun, the Dark Remover""
NOSPAM@dslextreme.com> wrote in message
news:10f42lu14b75vdc@corp.supernews.com...
:
: "Bill Garber" <willy46pa@comcast DOT net> wrote in message
: news:QcidnZGdePtQnW_d4p2dnA@comcast.com...
:
: > "Watson A.Name - "Watt Sun, the Dark Remover""
: > <NOSPAM@dslextreme.com> wrote in message
: > news:10f3vv7j4k8pq07@corp.supernews.com...
: > :
: > : "Phil Allison" <philallison@tpg.com.au> wrote in message
: > : news:40f1f943$1@dnews.tpgi.com.au...
: > :
: > : > "Watson A.Name -
: > :
: > : > > I take it you mean an astable flip-flop that drives the
: > lamps
: > : > > alternately. I'm wondering if the abrupt switching
will
: > keep the
: > : PIR
: > : > > sensor triggered. I'm thinking that long wave IR would
: > come from a
: > : lamp
: > : > > that's not even glowing visibly. Maybe just a dull
glow.
: > Since the
: > : IR
: > : > > all goes into the same sensor, are two separate IR
sources
: > really
: > : > > needed? Maybe I should experiment with just a single
: > lamp..
: > :
: > :
: > :
: > : > ** A PIR sensor is a passive infrared **movement**
: > etector - so
: > : they do
: > : > not respond to fixed lights being turned on and off in
the
: > usual way.
: > : They
: > : > might respond to a flashing light though - if you get
the
: > rate
: > : right.
: > :
: > : Maybe a lamp behind a slowly rotating fan? Maybe a lamp
: > reflected off a
: > : moving mirror?
:
: > Why not just remove the cover and flip
: > the override switch?
:
: I suppose I could do that for one room with a lot of PCs. But
I'd
: probably spend too much time diong that if I have a few dozen
rooms to
: do, each with a one or two PCs. The newer switches don't have
: ON-Auto-OFF, just Auto and Off, so one can't defeat the sensor.
I've
: opened up switches to adjust the sensitivity or time, but I've
never
: seen one with an overrride. It sure would be convenient if I
had a box
: that I could just carry from one room to another. Thanks.

True, most newer ones only can be set OFF.
How about a cheap pendulum clock on a stand?
It would constantly be moving over the sensor.

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me



---
This email ain't infected, dude!

Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.708 / Virus Database: 464 - Release Date: 6/19/04
Click to expand...
Portable light source, then forget the room lights.

Charles
 
"Bill Garber" <willy46pa@comcast DOT net> wrote in message
news:sYOdnV2Sv5BshW_dRVn-uA@comcast.com...
"Watson A.Name - "Watt Sun, the Dark Remover""
NOSPAM@dslextreme.com> wrote in message
news:10f42lu14b75vdc@corp.supernews.com...
:
: "Bill Garber" <willy46pa@comcast DOT net> wrote in message
: news:QcidnZGdePtQnW_d4p2dnA@comcast.com...
:
: > "Watson A.Name - "Watt Sun, the Dark Remover""
: > <NOSPAM@dslextreme.com> wrote in message
: > news:10f3vv7j4k8pq07@corp.supernews.com...
: > :
: > : "Phil Allison" <philallison@tpg.com.au> wrote in message
: > : news:40f1f943$1@dnews.tpgi.com.au...
: > :
: > : > "Watson A.Name -
: > :
: > : > > I take it you mean an astable flip-flop that drives the
: > lamps
: > : > > alternately. I'm wondering if the abrupt switching
will
: > keep the
: > : PIR
: > : > > sensor triggered. I'm thinking that long wave IR would
: > come from a
: > : lamp
: > : > > that's not even glowing visibly. Maybe just a dull
glow.
: > Since the
: > : IR
: > : > > all goes into the same sensor, are two separate IR
sources
: > really
: > : > > needed? Maybe I should experiment with just a single
: > lamp..
: > :
: > :
: > :
: > : > ** A PIR sensor is a passive infrared **movement**
: > etector - so
: > : they do
: > : > not respond to fixed lights being turned on and off in
the
: > usual way.
: > : They
: > : > might respond to a flashing light though - if you get
the
: > rate
: > : right.
: > :
: > : Maybe a lamp behind a slowly rotating fan? Maybe a lamp
: > reflected off a
: > : moving mirror?
:
: > Why not just remove the cover and flip
: > the override switch?
:
: I suppose I could do that for one room with a lot of PCs. But
I'd
: probably spend too much time diong that if I have a few dozen
rooms to
: do, each with a one or two PCs. The newer switches don't have
: ON-Auto-OFF, just Auto and Off, so one can't defeat the sensor.
I've
: opened up switches to adjust the sensitivity or time, but I've
never
: seen one with an overrride. It sure would be convenient if I
had a box
: that I could just carry from one room to another. Thanks.

True, most newer ones only can be set OFF.
How about a cheap pendulum clock on a stand?
It would constantly be moving over the sensor.

Bill @ GarberStreet Enterprizez };-)
Click to expand...
Well, if it isn't radiating IR, in other words a warm body, it shouldn't
trigger the motion sensor. My understanding is that the PIR sensors
were made to avoid problems that occured with ultrasonic sensors, such
as the wind blowing drapes and triggering the motion sensor. So I'd
still have to have some kind of warm body dangling from the pendulum.
That's why I suggested gerbils. But come to think of it, those little
critters are nocturnal, and sleep most of the day. So maybe not such a
good idea.
 
"Charles W. Johson Jr." <qrus19@mindsprUng.com past to present> wrote in
message news:83pIc.801$Qu5.16@newsread2.news.pas.earthlink.net...
[snip]

Portable light source, then forget the room lights.
Click to expand...
I come armed with a couple flashlights with LEDs replacing the light
bulbs, so I'm good to go in that respect. It's just that I've got only
two hands and they're usually occupied with something, so I can't hold
the flashlight on where I'm working. And besides, when one sets up PCs,
one often just sits waiting for the damned things to restart, and the
lights often go off while one is waiting. That's mighty inconvenient to
have to type in the dark. I got some LED headlamps, maybe I'll try one
of those. But they don't always shine light where it's needed, like
around a corner, or whatever.

But thank you for the idea. I just got a new brainstorm. I'll grab one
of the 375W floodlights from the maintenance dept, you know, those big
yellow things on a yellow tripod, with the big reflector that holds a 4"
tube of tungsten, might be halogen, or whatever. The construction crews
use them for doing their thing when there's no power for lights in a
building. I can just drag it from room to room and plug it in, and
screw them silly sensors! Probably a much quicker solution than trying
to fool the sensors.

> Charles
 
Question: How much would the average person who is annoyed with
motion sensors turning off on them pay for a small device that
keeps the lights on until you shut of the small decice?
 
"Watson A.Name - "Watt Sun, the Dark Remover""
<NOSPAM@dslextreme.com> wrote in message
news:10f4eee5gd6ai9e@corp.supernews.com...
:
: "Bill Garber" <willy46pa@comcast DOT net> wrote in message
: news:sYOdnV2Sv5BshW_dRVn-uA@comcast.com...
: >
: > "Watson A.Name - "Watt Sun, the Dark Remover""
: > <NOSPAM@dslextreme.com> wrote in message
: > news:10f42lu14b75vdc@corp.supernews.com...
: > :
: > : "Bill Garber" <willy46pa@comcast DOT net> wrote in message
: > : news:QcidnZGdePtQnW_d4p2dnA@comcast.com...
: > : >
: > : > "Watson A.Name - "Watt Sun, the Dark Remover""
: > : > <NOSPAM@dslextreme.com> wrote in message
: > : > news:10f3vv7j4k8pq07@corp.supernews.com...
: > : > :
: > : > : "Phil Allison" <philallison@tpg.com.au> wrote in
message
: > : > : news:40f1f943$1@dnews.tpgi.com.au...
: > : > : >
: > : > : > "Watson A.Name -
: > : > : >
: > : > : > > I take it you mean an astable flip-flop that drives
the
: > : > lamps
: > : > : > > alternately. I'm wondering if the abrupt switching
: > will
: > : > keep the
: > : > : PIR
: > : > : > > sensor triggered. I'm thinking that long wave IR
would
: > : > come from a
: > : > : lamp
: > : > : > > that's not even glowing visibly. Maybe just a dull
: > glow.
: > : > Since the
: > : > : IR
: > : > : > > all goes into the same sensor, are two separate IR
: > sources
: > : > really
: > : > : > > needed? Maybe I should experiment with just a
single
: > : > lamp..
: > : > : > >
: > : > : >
: > : > : >
: > : > : > ** A PIR sensor is a passive infrared **movement**
: > : > etector - so
: > : > : they do
: > : > : > not respond to fixed lights being turned on and off
in
: > the
: > : > usual way.
: > : > : They
: > : > : > might respond to a flashing light though - if you
get
: > the
: > : > rate
: > : > : right.
: > : > :
: > : > : Maybe a lamp behind a slowly rotating fan? Maybe a
lamp
: > : > reflected off a
: > : > : moving mirror?
: > : >
: > : > Why not just remove the cover and flip
: > : > the override switch?
: > :
: > : I suppose I could do that for one room with a lot of PCs.
But
: > I'd
: > : probably spend too much time diong that if I have a few
dozen
: > rooms to
: > : do, each with a one or two PCs. The newer switches don't
have
: > : ON-Auto-OFF, just Auto and Off, so one can't defeat the
sensor.
: > I've
: > : opened up switches to adjust the sensitivity or time, but
I've
: > never
: > : seen one with an overrride. It sure would be convenient if
I
: > had a box
: > : that I could just carry from one room to another. Thanks.
: >
: > True, most newer ones only can be set OFF.
: > How about a cheap pendulum clock on a stand?
: > It would constantly be moving over the sensor.
: >
: > Bill @ GarberStreet Enterprizez };-)
:
: Well, if it isn't radiating IR, in other words a warm body, it
shouldn't
: trigger the motion sensor. My understanding is that the PIR
sensors
: were made to avoid problems that occured with ultrasonic
sensors, such
: as the wind blowing drapes and triggering the motion sensor.
So I'd
: still have to have some kind of warm body dangling from the
pendulum.
: That's why I suggested gerbils. But come to think of it, those
little
: critters are nocturnal, and sleep most of the day. So maybe
not such a
: good idea.

Not only that, but they are dirty little buggers and
stink to the high heavens if you don't keep their
traps cleaned out regularly. :eek:)

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me



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On Sun, 11 Jul 2004 16:11:43 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:

I and probably a lotta other people have a chronic problem that is in
need of a simple solution. We're about to move into a new bldg and I
have to do a lotta install'ns of PCs, etc., so I'm under the desk a lot.
Every room in the new bldg has the motion sensors that turn off the
lights after a few minutrd, and I have to continually get up and wave my
arms to reactivate the sensors.

Some of the sensors are PIR motion detectors, and some are ultrasonic.
The US ones could be fooled with a fan in front of the sensor, But how
can I fool a PIR motion sensor? I have to have a warm, moving body in
front of the sensor, maybe a caged animal? Or a long wave IR generator
that moves or generates an intermittent output. I've ruled out candles
or other flames for safety reasons. A friend suggested a Lavalamp might
work, but I don't think I want to wait ten or twenty minutes to warm it
up. Maybe one of those old lamps with the rotating picture and fan
blades on top, that turns by convection currents from the light bulb
heat. I know that the IR output from IR LEDs is much too short a
wavelenght. Any ideas? Thanks.
Click to expand...
Now I am not quite sure what devices are being used, but all the PIR
movement sensors for lights I ahve seen can be toggled into an 'always
on' mode by quickly switching the light switch off the on.
 
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