Subject:
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Re: IRPD revisited
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 18 Sep 1999 21:38:56 GMT
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Reply-To:
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mattdm@*NoMoreSpam*mattdm.org
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Viewed:
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648 times
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Pete Sevcik <lego-robotics@crynwr.com> wrote:
> range adjustment from three inches to a foot. Optical biasing can
> increase the range up to three feet. Pictures and schematic
> on http://www.flash.net/~sevcik/IRprox.htm Let me know what you
Very nice!
Although I think your statement about robots breaking apart when they hit a
wall is a bit over-dramatic. Lego creations stick together pretty well --
I've built a large number of robots with mechanical bump sensors.
That's not to say a proximity sensor isn't more cool, just that (as most
people here probably already know!) it's not as vital as you imply.
--
Matthew Miller ---> mattdm@mattdm.org
Quotes 'R' Us ---> http://quotes-r-us.org/
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Message has 2 Replies:
 | | Re: IRPD revisited
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| Matthew, I agree. Depends on the speed of the robot. If the bot is moving slow enough, touch sensors are fine. There are probably configurations with long mechanical "feelers" that will work well at higher speeds. From what I have seen, adults seem (...) (25 years ago, 19-Sep-99, to lugnet.robotics)
| | | RE: IRPD revisited
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| (...) Correct. You need to learn how to build your touch sensors in a smarter way. The most intuitive way is to have a feeler arm that presses a button when it touches the wall. The problem with this design is that your feeler has a very short range (...) (25 years ago, 20-Sep-99, to lugnet.robotics)
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Message is in Reply To:
| | IRPD revisited
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| Hi All, Dennis Clark gave us a great design for a two channel infra-red proximity detector. It works well in a large number robot designs. I have just completed an IRPD with a slightly different design point. It is a single channel detector, housed (...) (25 years ago, 18-Sep-99, to lugnet.robotics)
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