Laser strip vs IR sensor for vertical door obstruction detection reliability

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#1 21672715 05 Nov 2014 14:56

Michael Dubrovsky Michael Dubrovsky

Anonymous

Post #1
21672715 05 Nov 2014 14:56

Hi, I'm working on a setup where we have a door that moves vertically and we want to ensure that it is not obstructed before we actuate it.

Here is a video:

https://docs.google.com/file/d/0B4MNxeaAC60fcWhHRVpqenZpaGM/edit?usp=docslist_api

What we are thinking is some sort of laser strip like elevators use. We tried IR, but it wasn't working very reliably (maybe we were not setting it up correctly).

Thanks for your input!

Cheers,
Mike
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#2 21672716 05 Nov 2014 19:27

Emmanuel Galleto Emmanuel Galleto

Anonymous

Post #2
21672716 05 Nov 2014 19:27

Hi Michael,

The sensor could be placed before the door or another set up would be using proximity sensor its best specially in non-contact situation.

Hope it helps,
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#3 21672717 06 Nov 2014 01:30

Ankim Tandon Ankim Tandon

Anonymous

Post #3
21672717 06 Nov 2014 01:30

Hello Mike,

have you tried curtain sensors....Keyence SL-V series and SL-C series.........but they are bulky...in size not sure you have mounting space for it.......

Or else you can brief how do you trigger this door action.....Is it solenoid or Motorised ..

I suggest for safety must put a safety label for hands off.......
#4 21672718 06 Nov 2014 01:57

Ankim Tandon Ankim Tandon

Anonymous

Post #4
21672718 06 Nov 2014 01:57

Also low cost way can try adding a spring that will attached to your door assembly.....and if door is obstructed the spring will compress and attach a metal plate to spring .....this metal plate will trigger a proximity sensor......as soon as proximity sensor is triggered retract the door....
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Laser strip vs IR sensor for vertical door obstruction detection reliability

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