Subject:
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Re: Line Following by Humans versus Bots
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 18 Nov 1999 16:26:29 GMT
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Original-From:
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Paul Speed <pspeed@augustschell.+spamcake+com>
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Viewed:
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814 times
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Graham Stalker-Wilde wrote:
>
> In lugnet.robotics, Soh Chio Siong writes:
> >
> > I would really like to know who or how was it decided that bots
> > should follow a single line in the first place. Is it just to
> > save on black paint or the number of light sensors?
> > Any clues?
>
> A single black line (of any width) on a white background *is* two
> white lines on black background.
Heh, good point.
>
> The real question is: what is the optimal width for the line?
> (given the number of sensors available)
Incidentally, in my robot I have solved my moving light
sensor problem. Now I'm left to the tedium of properly linking all
four corners of my synchro platform now that I can't just freely
run things through the center.
It's only in the prototype phase so I hesitate to provide
any pictures. It basically uses two of the largest gears linked
by one of the little eight tooth gears in the middle. I then mount
each end of a beam to the same point on each large gear. I now
have a place to mount my light sensor that moves in a circle without
twisting the cable. And the circle is just slightly smaller then
one of the large gears. So far it works pretty well.
Now I just have to finish the rest so that I can try it
out. This really makes optimal line width vs. flexible program an
interesting challenge. Since I can always sample more points around
the circle... or sample faster... or... to work around non-optimal
line widths.
If only I could play with my lego all day,
-Paul (pspeed@progeeks.com, http://www.progeeks.com/)
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Message is in Reply To:
 | | Re: Line Following by Humans versus Bots
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| (...) a single line in (...) sensors? (...) A single black line (of any width) on a white background *is* two white lines on black background. The real question is: what is the optimal width for the line? (given the number of sensors available) -g (25 years ago, 18-Nov-99, to lugnet.robotics)
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