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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 (...) (26 years ago, 18-Dec-98, to lugnet.robotics)
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| | Re: All-around-the-robot bump detection
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(...) 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)
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| | Re: All-around-the-robot bump detection
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(...) 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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| | Re: All-around-the-robot bump detection
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How 'bout this as an alternative. A flexable containment, possibly the moderate diameter rubber tube, inside which are two circuits. One is a continuous metal strip which runs along the inside edge of the outside wall of the tube. The second is a (...) (26 years ago, 18-Dec-98, to lugnet.robotics)
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| | RE: All-around-the-robot bump detection
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There is an example on the net somewhere of building it just like this using the bend sensors ripped out of a Mattel PowerGlove. -Kerry -----Original Message----- From: Dennis Parker [mailto:dparker@onr.com] Sent: Friday, December 18, 1998 6:55 AM (...) (26 years ago, 19-Dec-98, to lugnet.robotics)
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| | Re: All-around-the-robot bump detection
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to Dennis Parker's point OK so you get this tube wired up to act as a switch. What's the energy drain on your batteries? What are the voltages required to exceed the limit value of the actuator? It sounds more accurate than an air filled tube (...) (26 years ago, 20-Dec-98, to lugnet.robotics)
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