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Unread 15-07-2012, 10:23
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AKA: James Killian
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Re: [FRC Blog] Einstein Report Released

Quote:
Originally Posted by Greg McKaskle View Post
Let's look for a mechanism by which the alliance color could influence the failure.
...
Please explain the mechanism or let this one die. It is a small sample size and robots in elims do not swap bumpers.
Greg McKaskle
Thanks for the detailed analysis on this. I cannot explain the mechanism as I am not an expert in networking. I just observed one side having a signifcant amount of failures in the report. Since no-one acknowledged this in the report I wanted to... on the long shot chance that maybe (just maybe)... like tracing wires to a defected part... there could be something there.


Quote:
Originally Posted by Greg McKaskle View Post
The Einstein fields were usually measured to use 25Mbits. I wouldn't want to use g networks, and n needs a clean channel to achieve lots of throughput, but the channel bandwidth is not taxed by vision cameras ... yet. mp4 compression will work fine if both camera and laptop have codecs. The cRIO doesn't.
Greg McKaskle
Thanks very much for these numbers! Looking forward to seeing how they distrubute the network capping in future documents. One thing I'll want to determine is if the mp4 offerred by say the 1101, is if it actually uses p and b frames... or if it is i frame only. I know AVCHD like canon vixia does a great job with compression by using delta frames accordingly.


Quote:
Originally Posted by Greg McKaskle View Post
1. How about no. FIRST staff, experts, and the 12 Einstein teams in attendance were each asked if they approve of the report findings. All agreed. Explain why they would all have the same agenda?
Greg McKaskle
I don't think so either.
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