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Unread 06-01-2012, 09:15
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Joe Johnson Joe Johnson is offline
Engineer at Medrobotics
AKA: Dr. Joe
FRC #0088 (TJ2)
Team Role: Engineer
 
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Re: Running the Kinect on the Robot.

Quote:
Originally Posted by zaphodp.jensen View Post
I have a feeling that if you keep trying to fit more and more information in through the TCP/IP port, you will start having lag. If you have a second USB port, I would use a usb to serial converter to pass filtered data directly to the cRIO using a high baud rate. This would be easier to set up then a TCP/IP port, imho.
I have heard mixed reviews on this topic and I don't know who to believe.

In each case usually reliable sources tell me that 640X480 data (image and distance) CAN and CANNOT be reliably sent at 20-30 fps via the wireless router during a robot competition. Both sides are equally adamant that they are correct.

My problem is that if I guess wrong, I potentially don't find out until the first regional. Yikes!

So... ...my plan is that if we use it at all (and I am leaning toward not using it, at least this year) I want to do all the processing on the USB host (e.g. a Panda Board running an embed friendly distro of linux) we'd only be sending digested data via the TCP/IP link (e.g. the red ball is at coords X1,Y1,Z1, the blue ball is at coords X2,Y2,Z2, the floor is at Distance, Theta , Psi, a wall is at ..., ). It is hard to imagine that this would tax the link very much.

Joe J.
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Last edited by Joe Johnson : 06-01-2012 at 09:18.