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DiscoverCircuits.com -- Hobby Corner
Last Updated on:
Tuesday, November 29, 2011 08:14 PM
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Pigeon Scarecrow |
| I have an area on my
roof where a large flock of pigeons like to roost. Their nesting materials
and droppings really make a mess. Often there is enough junk from them that it
clogs my roof gutters. Perhaps one way to scare them away is with a device
mounted on the roof near their favorite roosting spot. The device could
contain an infrared motion detector. |
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When it detected their motion, a spring loaded cover would suddenly pop up, like a
jack-in-the-box. The thing could be equipped with a small solar panel, which could
charge up either a super capacitor or a long life battery. After each pop up
activation, a motor would pull the cover down into the body of the box. A
solenoid brake would lock the system in place, making it ready for another cycle.
I think the device could be camouflaged to look like a standard roof vent. |
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Perhaps instead of using an infrared motion detector
to activate the device, it could just go through a cycle every 10 minutes or so.
It could also contain daylight sensor so at night, the number of activations would
be reduced to perhaps once every 30 or 60 minutes. This should extend
battery life. |
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