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Topic: Sensor to detect a person? (Read 162 times) previous topic - next topic

jamesjamesz8

Hi. I am creating a project that will be attached on to a helmet.

 I am wondering which sensor would be best to detect when the helmet is being worn by a person.
I was looking into the PIR sensors if those work?

terryking228

I would suggest an infrared LED beamed from one ear towards the other, and an infrared phototransistor as the receiver.

Should work, probably even in the case of some elected officials...
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jremington

Do you mean that if a person puts the helmet on his/her head, the helmet will recognize that action?

If so, a microswitch would work fine.


wilfredmedlin

Or maybe some kind contacts in the buckle (if it has one, and if it's important that it's secured)

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robtillaart

#4
Jan 26, 2018, 10:44 am Last Edit: Jan 26, 2018, 10:46 am by robtillaart
I would suggest an infrared LED beamed from one ear towards the other, and an infrared phototransistor as the receiver.

Should work, probably even in the case of some elected officials...
LOL

Note: the beam should not be continuously checking, just once per second or so.
Overheating will not happen fast but still
Rob Tillaart

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wvmarle

Overheating will not happen fast but still
Let's not try it on politicians then.
Most of them are hotheads. They will overheat with such a helmet on.
Quality of answers is related to the quality of questions. Good questions will get good answers. Useless answers are a sign of a poor question.

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