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Unread 02-11-2014, 12:52
Greg McKaskle Greg McKaskle is offline
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FRC #2468 (Team NI & Appreciate)
 
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Re: Vision: what's state of the art in FRC?

Just to sharpen a few points.

The control packets are sent at 50Hz from the DS. The FTA counter resets at match start, so should see around 7000 packets sent during a match. 3500 lost packets is a lot, but depending on the distribution, it could mean 25Hz control with no packet loss or half the match spent disabled.

The Graphs tab of the DS shows the packet loss per second along with lag. This is later viewable using the DS Log File Viewer app. This tells you during the match how the lost packets were distributed and what the lag was. It will show any periods where the robot is disabled as well. You will find hundreds of logs to compare against at other events, practice fields, etc.

Also, the default dashboard shows the current camera settings, current bandwidth usage due to camera, and an LED is colored according to how this matches the field limits. There is also a control for enabling/disabling the camera and changing the three settings that most affect bandwidth.

I'd be happy to look at some team logs if they would post them.

Greg McKaskle