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c6jones720
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Preliminary Python - 2007/07/17 17:11 This thread discusses the Content article: Preliminary Python

I havnt driven my robot about yet but wonder does the height of the robot cause any issues with collision detection and obstacle avoidance?

Also I dont know anyone else has seen this but its Rodney Brooks talking at the British computer Society, he shows a load of Linux based open source programs for navigating robots around the home and or battlefield.

http://www.bcs.org/server.php?show=ConWebDoc.12425

It might be worth watching just to get a few ideas.
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jamesbruton
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Re:Preliminary Python - 2007/07/17 17:28 Yes - the main issue is that the beak sensors are just under the height of chairs and coffee tables (and point down). However, my coffee table has a lower level on it so this is no problem - it's quite reflective though so often the robot sees it as a drop instead of an object because the IR sensor sees 'into' the mirror image I guess.

Of course you could add other senors and use some rudimentary vision processing with the web cam to detect other objects too - perhaps some IR senors pointing upwards...
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c6jones720
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Re:Preliminary Python - 2007/07/17 18:35 Yeah Im sort of surprised that hasnt been done yet. <- I stand corrected

Post edited by: c6jones720, at: 2007/07/17 11:21
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jamesbruton
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Re:Preliminary Python - 2007/07/17 18:42 It has, check out SENS-O-RAMA
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jamesbruton
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Re:Preliminary Python - 2007/07/17 19:45 You could probably fit an ultrasonic / IR sensor facing up in the top of the beak sensor just for tables and chairs (get your Dremel out).

Although, one other aproach would be to spin the Bot around to 'scan' for table/chair legs with the skirt IR sensors, then attempt to work out that if two legs are close enough together that you shouldn't try to drive between them.

I still quite like the idea of fitting a motorised scanning sensor in a drive bay so you don't have to rotate the whole Bot.
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c6jones720
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Re:Preliminary Python - 2007/07/17 20:58 I'd rather just mount everything in the head and move that about
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