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Unread 12-04-2015, 11:33
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RobotPy Guy
AKA: Dustin Spicuzza
FRC #1418 (), FRC #1973, FRC #4796, FRC #6367 ()
Team Role: Mentor
 
Join Date: Dec 2008
Rookie Year: 2003
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Re: USB Camera using too much bandwidth

Quote:
Originally Posted by MikeE View Post
One team at Northeastern had a similar issue, so there is some anecdotal evidence that the Microsoft LifeCam does not play as nicely as the Axis camera in the competition environment.
No, that means the WPILib code to stream camera data is not as reliable/bandwidth friendly as the Axis camera streaming code.

My evidence? We used mjpg-streamer to stream *2* simulataneous Lifecam camera feeds (each was 160x120, 10fps, 30% compression -- but we resized the images to a much larger resolution so our drivers could see it, works surprisingly well) from our robot to our dashboard at our regional, and to my knowledge did not receive any bandwidth complaints from the field.
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Maintainer of RobotPy - Python for FRC
Creator of pyfrc (Robot Simulator + utilities for Python) and pynetworktables/pynetworktables2js (NetworkTables for Python & Javascript)

2017 Season: Teams #1973, #4796, #6369
Team #1418 (remote mentor): Newton Quarterfinalists, 2016 Chesapeake District Champion, 2x Innovation in Control award, 2x district event winner
Team #1418: 2015 DC Regional Innovation In Control Award, #2 seed; 2014 VA Industrial Design Award; 2014 Finalists in DC & VA
Team #2423: 2012 & 2013 Boston Regional Innovation in Control Award


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Last edited by virtuald : 12-04-2015 at 11:35.