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Robotics Algorithm Anyone?
Message
From
13/01/2006 09:50:53
 
 
To
12/01/2006 17:18:03
Dragan Nedeljkovich
Now officially retired
Zrenjanin, Serbia
General information
Forum:
Visual FoxPro
Category:
Other
Miscellaneous
Thread ID:
01082862
Message ID:
01086518
Views:
52
>x = 3.04923748101702cms
>y = 91.9938099220752 cms
>
>OK, so you already switched to using the upper half of the coordinate plane. Then, 
>assuming we're using the righthanded version of it, the pixel offsets to the right of 
>the image center should yield x>0, and x<0 to the left. If they don't, just change the
>sign of the pixel offset, either when you're calculating it, or when you use it to 
>calculate theta.
Thank you for clarifing this for me!
>You may start measuring the error, specially the distance as the pixel size becomes 
>smaller. Move your poles away, measure the physical distance, calculate, see how 
>precise are we.
I am definitely going to try and finish my test harness this weekend. Once I get this
done, I can buy a protractor etc and start testing the accuracy over distance. I will
definitely let you know the results.
> ... Once you decide which way is the most suitable for you, we get into the really 
>interesting stuff... like, if your robot moves, and some of the space falls of the 
>map, will you try to recalculate the positions of things which are now invisible, or 
>is it "I know only what I see now"? If the former, you could do many more things than 
>what you may get from a single image.
The idea I have in mind is to record the movement of the robot, so that it can build on
it's internal mind-map as it moves around the room and finds new objects - though I
haven't really got that far yet :) You're right though; it will definitely get more
interesting (or perhaps frustrating).
>Say, when is the debut on Robot Wars? Does that show still run? I was able to watch it 
>here for a while, and I can clearly see how a non-blind robot would be in advantage.
Yeah, what happened to Robot Wars? I watched the show (on and off) a couple years ago,
and it seemed to disappear. I think the show recently moved channels for one series -
www.five.tv/programmes/robotwars - maybe you can catch the re-run?

I think my robot would be way too agile for Robot Wars :) I am planning on using a
Pocket PC mounted on a small servo humanoid. Here are a few links:

- http://www.informatik.uni-freiburg.de/~nimbro/images/robots/Kondo_Kick_PPC.jpg
- http://www.audiocubes.com/product/KONDO_KHR-1_Robot_Kit.html

I think the Japanese hold their own robot fighting tournaments with these types of
robots, I beleive using remote controls (which is cheating of-course!) Perhaps one day
I will be able to enter with an autonomous fighter!

Have a good weekend!

Best Regards
Simon
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