Subject:
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Re: THOUGHTS on mapping with Lego Robot ( added to searching walls)
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 29 May 2003 23:52:02 GMT
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Viewed:
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1487 times
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>
> It's very difficult because all of the 'dead reconing' methods out there • are
> approximate and accumulate errors.
>
> If you drive your robot 10 feet in a straight line, your software will • probably
> by 'off' by maybe a half inch, after 20 feet, you'll be off by an • inch...after
> an hour of driving around, you could be just about anywhere! Turning is
> worse still - if you drive around a zig-zag course for 10 feet, you'll • probably
> be off by many inches in position and tens of degrees in heading.
>
> You need some way for the robot to (at least periodically) do a check on
> some absolute position to reset it's internal position indicator.
I still think that Dead Reckoning could be solved by using three Spybotics
towers at the different emissions placed around and have the rcx using
polling (get message?) to determine exact location.
just a thought that has been long in my head.
mike
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