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- From: nagle@netcom.com (John Nagle)
- Subject: Re: ARS MAGNA Robot Simulator now available
- Message-ID: <1992Nov10.010954.9656@netcom.com>
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- References: <1d8v7pINNgbc@TERMINATOR.AI.CS.YALE.EDU>
- Date: Tue, 10 Nov 1992 01:09:54 GMT
- Lines: 28
-
- engelson-sean@cs.yale.edu (Sean Philip Engelson) writes:
- > Now Available
- > ARS MAGNA
- > The Abstract Robot Simulator
- >
- >... Lately attention has turned to planning for more realistic
- >domains in which micro-world simplifying assumptions do not hold.
- >simple enough to support controlled experimentation.
- >ARS MAGNA's environment and robot models are based on
- >current robotics research, so that the domain is reasonably realistic.
- >At the same time, we abstracted away from many (though not all)
- >real-world details of kinematics and motor control.
-
- Despite being called a "robot simulator", this is a world modeller
- without much reality. It's a 2D grid world, and it is basically
- predicate-oriented,
- not geometry-oriented. The robot is modelled as a point with "sensors",
- "effectors", and "internal carrying capacity", in a world with "walls"
- and "things". You code a planning program in "nisp" (a LISP dialect)
- which does such things as calling "hand-grasp-desig", commanding a
- designated hand to grasp an object. This succeeds or fails, depending
- on the contents of nearby cells, and sometimes fails randomly, so the
- planner has to be able to recover from errors. That's the lowest level
- of detail supported. No kinematics, no dynamics, no gravity, no inertia,
- no friction, etc.
-
-
- John Nagle
-