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The problem with the motion sensor lights that are on the market today is that they don't give you a clue where to look. The would-be burglar could have ducked down behind a bush 5 feet off to your side and you'd never see him. This innovation would be for a motion sensor light that actually shot the
beam of light right where it detected the motion, highlighting the thief. It wouldn't be a bad idea if it took a picture while it was at it too.
Another advantage - it would tell you if there were any critters around before you ran out to your car to get something at night. The critters are alligators where I live and they like to crawl under cars.
Logitech Motion Tracker
http://www.logitech...vices/3480&cl=nz,en
They get much cheaper... this is the fancy one. [mylodon, Jun 10 2008]
Not really that much different
Auto_20Zoom-in
[AbsintheWithoutLeave, Jul 15 2008]
[link]
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security lights are the poor man's security system. I doubt there is much call for "smart" security lights until the price of this sort of thing is rock bottom. |
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Why don't you just get sentry guns like the rest of us have. |
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Regardless, have you a proposal of how to get this to work? Normal area motion sensors *don't* know where the motion is. So you're either thinking of some compound-eye thing, or perhaps using a CCD with rather nifty image processing and recognition software. |
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Custard - I was thinking of a fly's eye kind of lens where each facet had its own light beam. The bigger the object the more light beams would light up in that area. |
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[Custardguts] You can buy $50 webcams these days with the ability to track motion... they can even track faces onto motion and drive lipsynch. |
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So... regular motion detection triggers the light, and then the optical motion tracking rotates the light around. |
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This isn't a bad idea, because motion would, at least temporarily, disorient any sneak thief. The technology involved in tracking -- see webcam -- is linked already to video recodering, which would make the hooligan doubly paranoid. |
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Actually, most webcams have motion detection and motion tracking and security software. So all you need to do is tape a flashlight to the top and wire in some kind of switch. |
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So I'd say this is mostly baked, if not baked. |
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[mylodon] make up your mind , //So I'd say this is mostly baked, if not baked// |
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Noexit - Sorry, meant "ducked" not "dugged". |
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//Normal area motion sensors *don't*
know where the motion is.// They do,
at least at the sensor end of the thing.
Most sensors are divided into sectors,
and activate only when they detect a
signal moving across sectors. Hence,
the sensor has the ability - it's just not
processed. It wouldn't cost much more
to produce a sensor which could output
a signal to one of 20 pins depending on
which sector contained the signal. Then
it would be up to you to use that data
to switch on directional lighting. |
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Also, if the aim is deterrence, it'd be
more deterring for a ne'er-do-well to
find himself tracked by a light. |
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I think it's a good idea. |
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Doesn't work during the day though. |
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[MaxwellBuchanan] It's very simple motion tracking and available on random webcams on those CDs people normally just throw away. |
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I'll say mostly baked if not baked. In today's world this would be so simple to do, that if it isn't baked, I'd bet you could make a couple dollars off baking it. |
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//Most sensors are divided into sectors//
For PIR, this is rarely more than two.
The linked idea is similar.
There is a further link of mine of a motion detection system I developed that could drive a pan-tilt.
One application was in a live-fire trainer, to teach trainees to seek cover, and the pan-tilt had a paintball gun mounted on it. |
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If we could get the thieves to wear an RF tag, then the spot-light could just home in on where the signal was coming from. |
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Or attach a steel cable to a jack russel terrier. The other end of the cable attaches to a spring-loaded hook in the front of the camera. The camera pivots freely at the back. |
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When a burglar tries to sneak past, the terrier will jump up and attempt to be petted. This will pull the cable, aligning the camera, and can trigger both a bright light and a photographic still capture. |
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The burglar departs, the terrier returns to the doorstep satisfied he is still loved, and the light goes off to the relief of the neighbors. |
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