Subject:
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2D positioning ???
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 8 Dec 1999 12:55:47 GMT
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Viewed:
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599 times
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I realise this is an open ended question but I will ask anyhow.
We (as I have mentioned a number of times, probably maing in RCX newsgroup)
have
6 RCX's that we wish to make into a demo for school kids.
Ideally that demo would involve some sort of cooperation. To achieve this we
need to know where each robot is relative to the other robots. We can do one
dimensional position control using a gradient fill pattern from one end of the
"arena" to the other. It is the second dimension which has us stuck.
At this point we really don't have a concrete idea of what our demo will be
(ideas accepted and appreciated) but it seems that any sort of cooperative task
is going to require relative position information.
Has anyone out there used an overhead mounted camera to do this sort of thing?
Was it sucessful? We were reading about the roboCup soccer and the overhead
camera thing was the method they used. However we are not sure what sort of
resources (time and hardware) would be required to pull this level of image
manipulation and calculations off.
Any ideas and help appreciated
thanks
michael
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Message has 4 Replies:
 | | Re: 2D positioning ???
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| michael yates <michael.yates@stude...le.edu.au> wrote in message news:FMFAKz.9uE@lugnet.com... (...) I realize this might be a lot simpler than you are looking for, but I'll offer it up anyway. Over 50 years ago a guy named W. Grey Walter built (...) (25 years ago, 8-Dec-99, to lugnet.robotics)
| | | Re: 2D positioning ???
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| (...) I plan to try this myself once I test the robot controllers in simulation. In "Reactive Visual Control of Multiple Non-Holonomic Robotics Agents," the CMU team says that they use a frame grabber with frame rate transfer from a 3CCD camera. A (...) (25 years ago, 9-Dec-99, to lugnet.robotics)
| | | Re: 2D positioning ???
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| (...) task (...) With an overhead camera you may find it easiest to use the IR port on the RCX to beacon the robots position. With the coordinating PC sending out a poll message addressed to individual robots. Most video see IR signals very well and (...) (25 years ago, 10-Dec-99, to lugnet.robotics)
| | | Re: 2D positioning ???
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| (...) Hi! I have tried a method for 2D positioning, and it works if you don't need a high precision. It might be refined for higher precision, but I didn't try it. It is a variant of the gradient fill pattern. There are several ways to do it. The (...) (25 years ago, 10-Dec-99, to lugnet.robotics)
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