Alt-BEAM Archive

Message #00969



To: BEAM List beam@corp.sgi.com, Noam Rudnick rudnick1@cwix.com
From: dennison dennlill@buffnet.net
Date: Wed, 24 Feb 1999 21:42:24 -0500
Subject: [alt-beam] Re: reversing bitbot



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When considering reversing the entire bot, the trick is all in the sensor p=
lacement. You don't actually need a 'total reverse' swtich. If you have rig=
ht reverse, and left reverse lets say, then if your bot run's head on into =
a wall, then both sensors will be triggered. As a result it will reverse di=
rectly away, however this isn't so likely a senario (depenidng on sensor pl=
acement again) That both sensors are triggered at the same time.If the bot =
comes into the wall at any sort of angle, then one side will start reversin=
g before the other. The advantage of this is that the 'randomness' of direc=
tion of the robot is increased, so your bot dosen't back up and run forward=
again. It almost ensures that you will get some directional variation. Als=
o the Nu's are an advantage becuase they provide for some sensor preprocess=
ing meaning that your sensors sensistivity can be 'tuned'.

Dennison =

=

=

=

How do you expect the robot to actually back up when one motor is not a=
t all affected by the Nu controlling the other motor. What makes you think=
it will not continue to go forward?
=

Noam


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t =

your sensors sensistivity can be 'tuned'.
 

Dennison 


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How do you expect the robot to actuall=
y back up =

when one motor is not at all affected by the Nu controlling the other =

motor.  What makes you think it will not continue to go =

forward?

 

Noam





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