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
From: Dan Lavin <dan...@verizon.net>
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Subject: Re: [NYCR:Microcontrollers] Re: Connecting a wind sensor and Arduino
to control a video projection
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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.
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?
> 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.
>> On Tue, Dec 13, 2011 at 1:03 PM, Paul Strohmeier
>>> 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.
>>> - sent from android device -
>>> On Dec 13, 2011 6:02 AM, "Alexandra Gelis"<i...@alexandragelis.com>
>>>> 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...
>>>> I am really appreciated your help!
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