Subject:
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Re: Localization and the RCX
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Fri, 8 Sep 2000 02:09:38 GMT
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Viewed:
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1496 times
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Jerry Weinberg wrote:
> We're working on a project that requires an
> autonomous robot to manage the localization problem.
>
> We started by trying just dead-reckoning.
> We've tried a number of different gearing set-ups
> and wheel configurations, including using a dual
> differential, but all have significant drift making
> the calculations off quite a bit.
>
> One possibility would be to use a compass as a way
> to check the amount of error in direction. Then we
> could put in an error correction routine. Has anyone
> successfully wired a compass sensor to the RCX?
>
> Another possibility is to use landmark detection.
> But the limited sensor input makes this difficult.
> Anyone have experience with this?
I've played with this only a bit. With tech the way it is right now I've
come up with the following ideas.
1. The robot's playing area is painted from black to white. Where the
top left is all white and the bottom right all black with a constant
gradient from one to the other. This would allow you to know where the
bot was in relation to the play area. Direction is another matter.
2. I've been looking for a compass that returns the direction as a
resistance. Where 0 (N) is 0 or full resistance and 359 is the opposite.
I haven't found an electronic compass cheap enough for myself to play
with yet. Anyone have any ideas?
Not perfect solutions but a start.
Dean
--
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Message is in Reply To:
 | | Localization and the RCX
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| We're working on a project that requires an autonomous robot to manage the localization problem. We started by trying just dead-reckoning. We've tried a number of different gearing set-ups and wheel configurations, including using a dual (...) (24 years ago, 6-Sep-00, to lugnet.robotics.rcx)
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