Subject:
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RE: All-around-the-robot bump detection
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 18 Dec 1998 14:06:17 GMT
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Original-From:
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Jeremy Morton (Excell Data Corporation) (Exchange) <a-jeremm@exchange.microsoft!SayNoToSpam!.com>
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Viewed:
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1075 times
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The tubing is such a small diameter that I think it would take a large
surface of contact for enough air to be displaced to move a pneumatic
cylinder. Maybe with not-Lego(tm) tubing that was, maybe 1/4 to 1/2 inch
[6.35 to 12.7 mm :P ] in radius that patched into a normal Lego tube that
connected to the cylinder, it would be enough displacement. I'm pretty sure
that such a scheme would result in post-bump detection, which, while
definitely not useless at all, isn't what is always wanted [at least for me
:) ].
Jeremy Morton
a-jeremm@microsoft.com
-----Original Message-----
From: lugnet.robotics@lugnet.com [mailto:lugnet.robotics@lugnet.com]
Sent: Friday, December 18, 1998 5:52 AM
To: lego-robotics@crynwr.com
Subject: All-around-the-robot bump detection
For those of you with LEGO pneumatics, I've got a question. There seems to
be a need for an all-around-the-robot bump detector. Would this work? Wrap
soft rubber tubing around the robot, seal one end of the tube, and connect
the other to a pneumatic cylinder. Have the cylinder push on a touch switch
just short of turning it on. When the robot bumps something the pressure in
the tube goes up enough to push the switch.
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Message has 1 Reply:
 | | RE: All-around-the-robot bump detection
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| Hmmmmm, It's morning and I haven't had coffee yet so bear this in mind but it seems to me that this is a) a fairly cool scheme for post collision detection, and b)expandable to support direction detection through the use of 4 sensors. Imagine that (...) (26 years ago, 18-Dec-98, to lugnet.robotics)
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