Newsgroups: comp.robotics
Path: brunix!sgiblab!spool.mu.edu!sol.ctr.columbia.edu!The-Star.honeywell.com!umn.edu!noc.msc.net!uc.msc.edu!apctrc!wsc!emes114!zjoc01
From: zjoc01@hou.amoco.com (Jack O. Coats)
Subject: Where Am I
Message-ID: <1993Feb3.191931.4340@hou.amoco.com>
Sender: news@hou.amoco.com
Reply-To: zjoc01@hou.amoco.com
Organization: Amoco
References: <1993Feb3.162747.26434@phx.mcd.mot.com>
Date: Wed, 3 Feb 1993 19:19:31 GMT
Lines: 14

I am wanting to build a roamer robot that will roam a pre-defined area, with
builtin obsticles.  Basically consider it a problem to mow the back yard, 
but don't mow over the flower beds.  I don't want to bury cables or install
physical obsticles.

Any suggestions?  

One options I was considering is placing reflectors (bar coded to id each one
differently) about with 2 or more always visible, then the problem is to stay
within a pre-defined polygon using the angle difference measured between
where the reflectors were observed. (If that doesn't make sense, that shows how
confused I am at times trying to solve this problem!)

.. Jack ... jocoats@amoco.com
