🚀 go-pugleaf

nagle@netcom.com (John Nagle) writes:

>epperson@adobe.com (Mark Epperson) writes:
>>What about a differential sonar, has anyone done it? I envision 
>>a set of three receivers with the center one as the only transmitter.
*deleted lines*
>      It's really time for somebody to start developing smarter sonar
>systems for robots.
*deleted lines*

When I searched in the library computer, I came across following record:

"Title: Mobile robot map making using sonar.
 Author: Zelinsky, A.
 Corporate Source: Univ of Wollongong, Wollongong, Aust
 Source: Journal of Robotic Systems v 8 n 5 Oct 1991 p 557-577
 CODEN: JRSYDB  ISSN: 0741-2223"

The abstract describes that the article deals with a method of producing high-
resolution maps of an indoor environment. The method is based on investigating
straight line segments extracted from the sonar range data describing obstacles
near the robot. The mobile robot then moves parallel to the straight line sonar
segments, in close proximity to the obstacles, continually applying sonar
barrier test. This determines whether or not a sonar line segment is a true 
obstacle edge or a false reflection.

Sounds interesting, doesn't it? Unfortunately I don't have access to this
publication myself. Would anyone who has, like to reply to me?

Henrik Bohre

  @>-+--