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Real-time fuzzy inference based robot path planningThis project addresses the problem of adaptive trajectory generation for a robot arm. Conventional trajectory generation involves computing a path in real time to minimize a performance measure such as expended energy. This method can be computationally intensive, and it may yield poor results if the trajectory is weakly constrained. Typically some implicit constraints are known, but cannot be encoded analytically. The alternative approach used here is to formulate domain-specific knowledge, including implicit and ill-defined constraints, in terms of fuzzy rules. These rules utilize linguistic terms to relate input variables to output variables. Since the fuzzy rulebase is determined off-line, only high-level, computationally light processing is required in real time. Potential applications for adaptive trajectory generation include missile guidance and various sophisticated robot control tasks, such as automotive assembly, high speed electrical parts insertion, stepper alignment, and motion control for high speed parcel transfer systems.
Document ID
19910016317
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Pacini, Peter J.
(Research Inst. for Computing and Information Systems Houston, TX., United States)
Teichrow, Jon S.
(Togai Infralogic, Inc., Irvine CA., United States)
Date Acquired
September 6, 2013
Publication Date
August 17, 1990
Subject Category
Computer Programming And Software
Report/Patent Number
NASA-CR-188598
NAS 1.26:188598
Accession Number
91N25631
Funding Number(s)
CONTRACT_GRANT: NCC9-16
PROJECT: PROJ. AI-13
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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