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[DPRG] Re: Robo-magellan

Subject: [DPRG] Re: Robo-magellan
From: Dan Gates topazx2 at yahoo.com
Date: Tue Sep 28 17:38:37 CDT 2004

David,
 There are some pictures posted on the PARTS list's photo section.
-Dan



--- "David P. Anderson" <dpa at io.isem.smu.edu> wrote:

> Hi Ted,
> 
> Congratulations!  (Also very cool looking bot!)
> 
> Thanks for the recap.  
> 
> So, it seems like GPS did not turn out to be too useful on this small
> of
> a scale?  That's interesting to know.  I think that I read that Doug
> is considering not even giving out GPS coordinates for next year's
> event,
> if I understood correctly.
> 
> It does seem like the navigation contest, as it was orignally styled,
> became a cone-touching contest, (as I analyzed to no avail in the
> original
> request for comments, see SRS message #18121 and #18142).  And then,
> when
> nobody actually touched any cones, there was no objective method left
> to
> measure and rank the robots' actual navigation abilities, not
> surprisingly.
> 
> Is than an accurate description?
> 
> So at that point it became a subjective contest, with the judges
> having
> to make up unpublished criteria on the spot for a speculative
> conclusion
> as to who had the greatest chance of success:  "Most Likely to
> Succeed."
> 
> Seems like a slipperly slope.
> 
> Oh well, congratulations once again to you and Doug and Larry and to
> Servo
> Magazine and everyone who worked so hard to produce this event.  I
> think its
> a huge step in the direction of getting our experimental robots off
> their
> specialized contest courses and out into the real world.  Most cool.
> 
> best,
> dpa
> 
> Here's some links to the original observations on the Request for
> Comments, 
> for folks not on the SRS email list:
> 
> http://groups.yahoo.com/group/SeattleRobotics/message/18121
> http://groups.yahoo.com/group/SeattleRobotics/message/18142
> 
> 
> > It was an amazing event.  There were four cones laid out in the
> Seattle
> > center.  Three of them were bonus cones.  To win the $1000 prize,
> you had to
> > navigate to the final cone from the starting point faster than
> anyone else,
> > which was about 500 feet away, with many obstacles in the
> way...trees,
> > rocks, park benches, outdoor trash cans, decorative sculptures...a
> whole
> > bunch of stuff I never anticipated seeing.  There was definitely,
> no
> > straight-shot way to get from the start to the finish.  If you went
> to a
> > bonus cone first, you got a multiplier applied to your time.  The
> time was
> > scored on the best of best of three attempts.  Out of the 10 robots
> that
> > showed up, none of them touched a cone, on any attempt.   So,
> nobody won the
> > cash prize.   They ended up judging the winners of 1st, 2nd and 3rd
> place
> > based upon two criteria, who went the farthest, and who had the
> greatest
> > chance of success based upon their performance, and the technology
> equipped
> > on the robot.
> > 
> > The event starting line was in a wooded area, with a narrow path
> leading out
> > of it, and up onto a lawn area.  Most of the robots never got out
> of the
> > woods by their 2nd attempt.  Most of them got hung up on a rock, or
> a tree
> > or hit a railing, or pole or something.  The trees and the big
> building near
> > the starting line, gave trouble to those who had a working GPS, so
> it made
> > for an interesting start.
> >  
> > We had some major GPS problems on our robot (which is a long story)
> so, at
> > the last minute, I went in and modified our algorithm to navigate
> using only
> > the compass.  I totally anticipated we were going to loose, big
> time.
> > Anyway, it worked out better than expected, and we got very far,
> and took
> > 2nd place.  Needless to say, I was quite surprised.
> > 
> > The guy who won the event got very close to the final cone, within
> 50 feet,
> > but the robot decided to take a path that lead him through a narrow
> space
> > between a tree and a garbage can, and he got stuck.  He didn't have
> much in
> > the way of proximity sensors on-board, but he did have a very-nice,
> > articulated frame design, that almost gave him the abilty to
> un-stick
> > himself.  I imagine next year he will have a sonar array on his
> bot.
> > 
> > I think next year someone will win the cash prize for sure.  I
> thought the
> > event organizers did a great job for the first time of the event
> too.  There
> > were a lot of spectators....I would guess about 100 people or so. 
> It was
> > like watching a golf tournament.  This huge crowd following a robot
> through
> > the Seattle center to see how it would fare...and then you would
> hear a big
> > cheer when it cleared an obstacle, or ran into something....it was
> really
> > fun for the spectators as well as the competitors.  I think the SRS
> is onto
> > something good with this event.
> > 
> > It was a lot of work to build the robot, and the competition was
> excellent!
> > Now that we have something built, we are already planning our
> strategy for
> > next year. Dave, I definitely would like to see you there next year
> with an
> > entry!
> > 
> > 
> > - Ted 
> > 
> > -----Original Message-----
> > From: David P. Anderson [mailto:dpa at io.isem.smu.edu] 
> > Sent: Monday, September 27, 2004 12:11 PM
> > To: dprglist at dprg.org
> > Subject: [DPRG] Re: Robo-magellan
> > 
> > Ted,
> > 
> > So, how did you do this weekend?  Did you complete the course?
> > Did anyone?  Any post-event diagnoses?
> > 
> > best,
> > dpa
> > 
> > 
> > > 
> > > 
> > > Thanks!  I guess I should take a photo or two with a coke can or 
> > > something in there for reference.  The wheels are 12" in
> diameter.  
> > > They are go-kart wheels.
> > >
> > >- Ted
> > >
> > -----Original Message-----
> > From: David P. Anderson [mailto:dpa at io.isem.smu.edu]
> > Sent: Wednesday, September 15, 2004 10:59 AM
> > To: ted at larsonland.com
> > Cc: dprglist at dprg.org
> > Subject: Re: [DPRG] Robo-magellan...
> > 
> > Ted,
> > 
> > Excellent!  It really doesn't look that heavy.  How large diameter
> are the
> > wheels? 
> > 
> > dpa
> > 
> > > Dave,
> > > 
> > > I finally put some pictures on my website of our Robo-Magellan
> robot.  
> > > I will try to shoot some vide of it roaming around later in the
> week.
> > > 
> > > http://www.tedlarson.com/robots/odyssey.htm
> > > 
> > > Enjoy!
> > > 
> > > - Ted
> > >  
> > > 
> > > -----Original Message-----
> > > From: David P. Anderson [mailto:dpa at io.isem.smu.edu]
> > > Sent: Wednesday, September 08, 2004 11:45 AM
> > > To: ted at larsonland.com
> > > Cc: dprglist at dprg.org
> > > Subject: Re: [DPRG] serial baudrate converter
> > > 
> > > Ted, how's your Robomagellan comming?  Any pictures?
> > > 
> > > thanks,
> > > dpa
> > > 
> > _______________________________________________
> > DPRGlist mailing list
> > DPRGlist at dprg.org
> > http://list.dprg.org/mailman/listinfo/dprglist
> > 
> 
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> 



		
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