[Motmot] Using the Motmot USB device to Syncronize

[Andrew Straw]

Nateon Ajello wrote:
> Hi Andrew,
>
> Thanks for you information, I really appreciate the response.  Most of
> the cameras I have looked at that have on-board compression are
> security cameras.  They can be triggered by something called a
> "Digital Alarm Trigger," which is what makes the camera start
> recording.  This leads me to believe that it is possible to trigger it
> with the camtrig device, but its all speculation. Take a look at this
> camera:
>
> http://www.securitycameraworld.com/IP/Acti-Superior-Low-Light-Poe-Megapixel-Ip-Security-Camera.asp
>
> do you think camtrig would work on a digital alarm trigger?  Any
> information would be helpful. Thanks,

Hi Natoen,

It occurs to me that you may not need the level of synchronization that
Motmot and the CamTrig device were designed for (<1 msec). Would perhaps
a simpler solution work, such as using an audio channel to save the
data? What data rate and synchronization precision do you require?

In general, these IP security cameras don't seem to support triggering
acquisition of each frame via a voltage pulse, which is fundamental to
the Motmot and CamTrig synchronization process.

-Andrew

-- 
Andrew D. Straw, Ph.D.
California Institute of Technology
http://www.its.caltech.edu/~astraw/