From: scooter@btopenworld.com   
      
   anyone?   
      
   On Tue, 07 Oct 2003 18:47:34 +0530, scooter    
   wrote:   
      
   >I'm trying to create a fuzzy controller for a vehicle to enable it to   
   >steer around traffic cones. The controller will output a crisp value   
   >equal to a steering force. Unfortunately I've run into a problem when   
   >creating the rule set   
   >   
   >Let's say I have these simple fuzzy variables:   
   >   
   >DISTANCE_TO_CONE = {CLOSE, AVERAGE, FAR}   
   >   
   >POSITION_TO_CONE = {TO_LEFT, TO_CENTER, TO_RIGHT}   
   >   
   >STEERING = {STEER_LEFT, STEER_FORWARD, STEER_RIGHT}   
   >   
   >now how do I create a rule such that if the cone is directly ahead and   
   >close to the vehicle the vehicle will steer to the left *or* to the   
   >right?   
   >   
   >It seems that I can only create a  rule that makes the vehicle steer   
   >in one direction:   
   >   
   >if CLOSE and TO_CENTER then STEER_LEFT   
   >   
   >   
   >Is there a way I can overcome this problem? Is defining the   
   >POSITION_TO_CONE variable as follows a possibility?   
   >   
   >POSITION_TO_CONE = {FAR_LEFT, SLIGHTLY_LEFT, SLIGHTLY RIGHT,   
   >FAR_RIGHT}   
   >   
   >If so how would this system then deal with a value equally situated in   
   >SLIGHTLY_LEFT &  SLIGHTLY RIGHT?   
   >   
   >   
   >thanks   
   >   
   >   
   >   
   >   
      
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