Connecting a wind sensor and Arduino to control a video projection - NYCResistor:Microcontrollers

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Message from discussion Connecting a wind sensor and Arduino to control a video projection
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Date: Tue, 13 Dec 2011 18:40:38 -0500
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Subject: Re: [NYCR:Microcontrollers] Re: Connecting a wind sensor and Arduino
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Have you considered a passive infrared (PIR) sensor?  These are commonly 
used in motion detectors.  One or more of these may do what you want.
> http://www.parallax.com/Store/Sensors/ObjectDetection/tabid/176/CategoryID/51/List/0/SortField/0/Level/a/ProductID/83/Default.aspx

Alternatively, you could try hanging some sheets of aluminum foil in the 
room and detect their movement with a reflective sensor.


On 12/13/2011 3:50 PM, Rolan wrote:
> Do ya think the Kinect would be a good fit here?
>
> ~Rolan
>
> On Dec 13, 1:42 pm, Eric Skiff<m...@ericskiff.com>  wrote:
>> Agreed - you'd probably find that any HVAC system in the space would create
>> more noise in the wind data than people moving through the space.
>>
>> Personally I would probably try to do this with a webcam and optical flow
>> analysis using OpenCV
>>
>> You can see one example of this here:http://youtu.be/QX5TlIHXhd0
>>
>> There are many other things you can do to simulate fluid/gas movement in a
>> space once you have information about which way objects are moving in a
>> field of view.
>> If you take a look at some of Grant Kot's physics simulation videos here:http://www.youtube.com/user/kotsoft?blend=8&ob=5(he was our intern here at
>> QLabs!) you'll get a sense for what you can do with optical flow data.
>>
>> -E
>>
>> On Tue, Dec 13, 2011 at 1:03 PM, Paul Strohmeier
>> <paul.strohme...@gmail.com>wrote:
>>
>>
>>
>>
>>
>>
>>
>>> you could try using piezzo electric sensors. they would trigger the
>>> projections based on the vibrations created by the peoples movements.
>>> i think using a wind sensor will probbly be a very complex undertakig in
>>> order to get useful readings from it.
>>> p.
>>> - sent from android device -
>>> On Dec 13, 2011 6:02 AM, "Alexandra Gelis"<i...@alexandragelis.com>
>>> wrote:
>>>> hello!
>>>> I am having a problem, see if some of you guys have any idea...
>>>> I need to trigger videos projected by tree projectors.
>>>> The videos should be trigger by the subtle air or wind produced by the
>>>> walking of the viewers on a room. The viewer will  be surrounding by the 3
>>>> video projections.
>>>> My first idea was to use video cameras connected with MAXmsp and create a
>>>> grid to mark and read the movement of the people on the space.
>>>> But, it will be better if  is possible to measured the air produce by
>>>> their movement, because conceptually works better with the video
>>>> installation that i working on it.
>>>> Any idea to how to resolve this?
>>>> I was wondering if there is any kind of wind sensor that can be connected
>>>> in to Arduino...
>>>> IDEAS?
>>>> I am really appreciated your help!
>>>> Thanks
>>>> Alexandra
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