[Canberrauav] notes from today's flight test
tridge at samba.org
Wed Dec 14 16:16:36 EST 2011
Thanks for the notes! If anyone would like to see some of the photos
from today, see here:
we were asked to get some photos of CMAC from the air for the website to
show off the new runway and taxi ways.
> * solve smearing problems with chameleon cameras. What settings are
> wrong? how to reproduce on the bench? how to detect smearing from the
Would somebody else like to volunteer to look into this and solve it? We
get it with both the colour and mono cameras. The skills needed are C
programming, and time to play with camera settings (and read the very
detailed manual). We could also put in a support request with PtGrey.
I will give the cameras to whoever has time to look into this.
> * BUG - debayer program not garbage collecting properly
I've reduced this a bit now, but there seems to be an underlying problem
with the OpenCV library.
> * ubiquity modem has a dodgy connection somewhere, intermittent power
> failure (and it takes 30 seconds to reboot, after the cable-jiggling
> makes the light come back on). While this was useful for testing
> multiple data link features, we've done that now so it should probably
> be fixed :) One option would be to replace the CAT cable (and perhaps
> use braid to isolate the socket from mechanical stress), or replace
> the POE injector with a direct power connection with a high
> reliability connector (eliminate one possible source).
it would be good to have a volunteer to look into this. If I gave you
the radio over Christmas could you look at this Chris?
> * BUG: using the multi-link features, when sending new parameters to
> the plane from the GCS, the state model of each link is not updated
> with the new parameter value (unless parameter explicitly "fetched").
> * BUG: episodic latency (stutters ~3s duration) on one link but not
> the other is causing some grief. May be a buffering issue (where;
> xbee? ubiquity? software blocking?). May need to find and fix
> buffering issue, and also handle message asynchronicity differently.
I'll look into these this week.
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