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[DPRG] ORC
Subject: [DPRG] ORC
From: Steve Hassenplug
steve at teamhassenplug.org
Date: Wed May 21 08:46:26 CDT 2008
BTW, I'm sure I'm just one of many out-of-town people watching the ORC
discussion. Wish I could have been there.
I almost found someone to rebuild my robot in Dallas, and bring it out. I'm
not sure how it would have done, but it should would have made a respectable
showing.
I may need to add this to my 2009 schedule. :)
>
> Seems reasonable. The main point is that the robot must track its location
> continuously, and that would seem to mitigate against a technique of
> stopping
> to take readings from time to time. Odometry is bound to drift over time,
> especially in outdoor environments, of which a level asphalt parking lot
> is probably as good as it gets. So ultimately some other form of
> correction
> is needed. However, as a sequence for learning, wheel encoder based
> odometry
> is, I think, the right starting place, and we had a lot of success with
> that at the outdoor contest last month.
>
I had a friend tell me he's planning on reading his compass (and GPS),
then point the robot the correct direction, and let it run at full speed for
a while, before reading the compass & GPS again to make a course
correction. I'm pretty sure if I attempt to tell him how poorly that would
work, it would only make him more determined to show me otherwise.
While I think a robot that can raise & lower its compass would be pretty
cool ("up periscope") I'm sure it would create a lot of extra complexity,
and have a negative effect on robot performance. But, it would be great to
see...
Now, I need to finish reading through my "ORC Lessions Learned" e-mails.
Steve
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