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Topic: Capture people sitting on a bench (Read 4457 times) previous topic - next topic

HazardsMind

What about a few photoresistors or a strip of photoresistors? If the bench has gaps between the wood or plastic beams, you could tuck the photoresistor between them. If some one sits down, the photoresistor value will change indicating a person is there. And photoresistors are very small, so it should fit easily between the gaps.
I wouldn't put the photoresistors where the person actually sits down, but on the part where the persons back leans against the bench, this way if someone puts a bag down, the photoresistor wont get covered and no incorrect readings.
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1ChicagoDave

What about a handful of capacitive sensors under the bench? They can have a range into the tens of centimeters and should work through non conductive materials (e.g. wooden bench).

Grumpy_Mike

Capture people sitting on a bench?

Have a large metal clamp come out of either side of the back rest an grab them. Then have an ether spray to knock them out.

dc42


Capture people sitting on a bench?

Have a large metal clamp come out of either side of the back rest an grab them. Then have an ether spray to knock them out.


I was going to suggest dropping a large net.
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snusmumriken

I would go for the loosened plank + microswitch, hooked up to an Ardulog (www.hobbtronics.co.uk).  Very small (easily hidden under the plank), very cheap, very effective, not going to be triggered by birds or squirrels.

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