Subject:
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Re: Line Followers
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 16 Nov 1999 17:29:29 GMT
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Original-From:
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Paul Speed <PSPEED@avoidspamAUGUSTSCHELL.COM>
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Viewed:
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750 times
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Actually,
My thoughts were of mounting it geared in such a way that
the light sensor traces a circular path without ever actually,
itself, rotating. Imagine mounting to some kind of rotating assembly
and then mounting that to the end of an arm. As the arm turns the
assembly also turns, but in the opposite direction. Then the only
challenge is keeping the cable out of the machinery.
However, since the devil is in the details I figured I would
try it first before expanding on the idea. :)
-Paul (pspeed@progeeks.com, http://www.progeeks.com/)
Wes Matchett wrote:
>
> Perhaps the light sensor could be placed at the end of a vertical arm that
> swings in a cone pattern. This would prevent the twisting of connectors.
>
> -Wes
>
> Paul Speed wrote:
> >
> > Hello,
> >
> > After various discussions here about maze walkers and synchro
> > 'bots, I decided to try my hand at YASB (yet another synchro 'bot).
> > Furthermore, I decided that instead inverting the problem as Ralph
> > did, that I would turn it inside out by having a solid black line that
> > traces the path of the maze instead of having walls.
> >
> > This means that I will need an efficient way of tracking the
> > line and detecting junctions. Initially I will leave the maze
> > "square", but I hope to be able to generalize in the future.
> >
> > My idea is to simulate having multiple light sensors by
> > using one light sensor to sample in several places. Imagine a light
> > sensor moving around in a circle sampling discrete points along this
> > circle. Standard methods have been discussed for various forms of
> > rotation sensors but I think a "touch sensor pressed by a gear"
> > type has some elegance when considering that the touch sensor could
> > probably be stacked on the same port with the light sensor.
> >
> > I will leave solutions to the problem of keeping the light
> > sensor cable from getting twisted as an exercize for the reader.
> > (heh) At least until I've built a working example. Speculation is
> > always so much easier than proving that it will work. :)
> >
> > -Paul (pspeed@progeeks.com, http://www.progeeks.com/)
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Message is in Reply To:
 | | Re: Line Followers
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| Perhaps the light sensor could be placed at the end of a vertical arm that swings in a cone pattern. This would prevent the twisting of connectors. -Wes (...) (25 years ago, 16-Nov-99, to lugnet.robotics)
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