Subject:
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Re: latest results
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Newsgroups:
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lugnet.org.us.laflrc
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Date:
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Wed, 16 Nov 2005 16:08:25 GMT
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Viewed:
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8817 times
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> OK, I remember now. It's sort of pattern-matching with the pattern being
> encoded by the position of the sensors instead of software (which, incidently,
>
> 1) The sensor geometry is usually determined by optomizing the line following,
> so usually repositioning the sensor array means you aren't optimized for
> following the line. It's a trade-off, and it may work.
>
> 2) You better come into a well-known zig-zag at *very* close to a head-on entry
> angle - no wiggling allowed! Simple if there's a long (enough) straight prior to
> the zig-zag, but it might imply keeping speeds low, which might *not* be a good
> trade-off in this event.
These are things I just didn't have time to test. My newest line following robot
"Twisted" was made to follow a line with six inch radius turns. I spent a great
deal of time working on it, and have at least four or five scrap prototypes on my
working table to show for it. I was trying to build a robot that could go over 3
ft/sec, which I did.
And, you know, at the speed it's going, a sensor will totally cross the
line in about 20 ms.
I also just realized if the line is under two of the sensors for any length
of time, then it goes to zero sensors, it's most likely in a zig-zag... hmm.
Steve
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Message has 1 Reply:
 | | Re: latest results
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| (...) I never took the time to think about this in those terms...hmmm...I will have to think about the impact of this to my approach... (...) Or a break in the line...either way, go straight... And, as a side note, I rebuilt Sniffer on Sunday and (...) (21 years ago, 16-Nov-05, to lugnet.org.us.laflrc, FTX)
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Message is in Reply To:
| | Re: latest results
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| (...) encoded by the position of the sensors instead of software (which, incidently, would make it very tunable at run-time - hold the sensors onto 12L axles projecting forward, for instance, so you can slide them back and forth). Hmm. That should (...) (21 years ago, 16-Nov-05, to lugnet.org.us.laflrc)
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