[Robotgroup] Drive a Droid proposal... How to detect the

[brooksdesign]

  The main problem my bots seem to have is that the feat and/or wheels start out nice and clean with a predictable friction then as they cruise back and forth over the dusty floor they quickly loose traction because of the dust. Or with concrete floors the rubber feet wearout real quick. 
  For the 4 second backup idea it probably would not be a problem but I was also thinking about that issue and the possability you could have some sort of dead reckoning that gets verifyed and recalibrated after every couple of moves to build up a data base or neural net to learn what to expect from differant surfaces. Way more than what would be needed for this event but something to think about for the future.
-brooks

-----Original Message-----
>From: Bryan Bishop <kanzure at gmail.com>
>Sent: Jul 9, 2008 2:30 AM
>To: The Robot Group Mailing List <robotgroup at puremagic.com>
>Subject: Re: [Robotgroup] Drive a Droid proposal... How to detect the
>
>On Wednesday 09 July 2008, brooksdesign wrote:
>> how about a reverse the last 3 or 4 seconds of commands, pause, and
>> return control to transmitter/operator.
>
>Would the frictional offset buildup within 4 seconds be too much? I need 
>to figure out how to do these sorts of calculations .. maybe just by 
>playing around with something with wheels and a servo plus a marker to 
>check for predicted position versus actual position given different 
>surfaces, masses, textures, etc. Would make a good, quick script to 
>write.
>
>- Bryan 
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