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Subject: 
All-around-the-robot bump detection
Newsgroups: 
lugnet.robotics
Date: 
Fri, 18 Dec 1998 13:51:51 GMT
Viewed: 
1022 times
  
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.



Message has 2 Replies:
  Re: All-around-the-robot bump detection
 
(...) Nice idea, just one problem though... It gives you no idea as to the direction of the collision so the robot would need some other means of locating the cause of the collision and taking remedial action. Still, if you can solve that problem... (26 years ago, 18-Dec-98, to lugnet.robotics)
  Re: All-around-the-robot bump detection
 
(...) I haven't actually tried this, but I can hardly imagine that the pressure generated from just squeezing one small part of the tube is sufficient to extend a cylinder and press a touch sensor. The pressure generated will probably just "vanish" (...) (26 years ago, 18-Dec-98, to lugnet.robotics)

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