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Subject: 
Re: !!! Laser attachments for Mindstorms !!!
Newsgroups: 
lugnet.robotics
Date: 
Thu, 28 Oct 1999 17:44:44 GMT
Original-From: 
Kay Neuenhofen <KAY.NEUENHOFEN@ENG.ihatespamSUN.COM>
Viewed: 
1828 times
  
> > Yes, plus two touch sensors to implement bumpers. Otherwise, you won't
> > know when you hit an obstacle. That leads to sensor multiplexing, as
> 
> Why, if you're keeping track of motion? I mean, if you suddenly stop, it's
> probably safe to assume you've hit something. :)

Depending on the wheels/tracks your bot has, and the surface it moves on,
there is often a good chance that you will experience slippage, i.e. the
bot will be blocked but the wheels/tracks are still moving. Bumpers are
a decent way to compensate for that (or you you can get really fancy and
use a (non-Lego) 3D positioning sensor).



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