home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.robotics
- Path: sparky!uunet!spool.mu.edu!agate!ames!data.nas.nasa.gov!eos!aio!arabia!graves
- From: graves@arabia.uucp (Phil Graves)
- Subject: Re: How to Explore Mars
- Message-ID: <1993Jan11.180147.29030@aio.jsc.nasa.gov>
- Sender: news@aio.jsc.nasa.gov (USENET News System)
- Organization: Lockheed ESC, Houston
- References: <HAGERMAN.93Jan7224103@rx7.ece.cmu.edu> <1993Jan10.131539.21053@n1gva>
- Distribution: comp
- Date: Mon, 11 Jan 1993 18:01:47 GMT
- Lines: 44
-
- >hagerman@ece.cmu.edu (John Hagerman) writes:
- >: There has been some discussion about the tradeoffs between using one
- >: large robot and many small robots for planetary exploration. Has the
- >: Erebus experiment changed the opinion of anyone here?
-
- In article <1993Jan10.131539.21053@n1gva> fcf@n1gva (F. C. Floberg) writes:
- >I wonder about 'blending' the two philosiphies... Imagine that you had
- >one large, agile, and reasonably intelligent robot, and say, six or so
- >smaller less sophisticated ones all linked together via some sort of
- >network (on a radio link maybe?).
-
- You have "hit the nail on the head". Each type of robotic system has
- both advantages and disadvantages which might satisfy some mission
- requirements but not others. This is an intelligent compromise.
-
- Two years ago, I worked at the Space Exploration Initiative Planet
- Surface Systems office and performed feasibility studies about the
- kinds of robotic systems which were proposed for the Mars missions.
- I had no vested interest in any specific technology, and was amased
- when the technology brokers came racing out of the research centers
- and universities, trying to convince NASA to consider their robotic
- systems. As you would expect, all of the systems we considered met
- some of the requirements, but no single system could meet all of the
- requirements. It makes sense to have several different robotic
- systems.
-
- The idea of multiple specialized robotic systems for Lunar/Mars
- exploration is supported by two general guidelines: 1) decoupling,
- so that if one system performing one part of the mission fails, it
- does not prevent other systems from completing other mission goals,
- and 2) redundancy, so that if one system fails, another systems can
- take its place.
-
- Oh! I forgot about the fact that we need a really big budget, and a
- launch vehicle capable of getting all this equipment there. Maybe
- we can live with just one tiny robot ...
- :)
-
-
- --
- **************************************************************
- Philip Lee Graves, Lockheed-ESC, Houston, TX
- graves@arabia.jsc.nasa.gov
- **************************************************************
-