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Constructing rule-bases for multivariable fuzzy control by self-learning Part 2. Rule-base formation and blood pressure control application

 

作者: D. A. LINKENS,   JUNHONG NIE,  

 

期刊: International Journal of Systems Science  (Taylor Available online 1993)
卷期: Volume 24, issue 1  

页码: 129-157

 

ISSN:0020-7721

 

年代: 1993

 

DOI:10.1080/00207729308949476

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

While the first part of this paper was concerned primarily with the issues of system structure and associated learning control laws, the second part presents a methodology for constructing the rule-base from learned data. The approach, based on a simplified fuzzy control model, is systematic, simple but efficient. The proposed system is applied to the problem of multivariable control of blood pressure, which is characterized by strong interactions and pure time delays in controls. It is shown that the effects of loop interaction are removed automatically by the learning scheme so that a decoupled control structure can be built. Moreover, the problem of pure part delay is easily tackled due to the iterative property. By defining some performance measures such as AD, RD, FRD and IP, the behaviour of the proposed system in terms of the learning ability (adaptability), reproducibility and robustness are evaluated through a number of simulation studies. Some important conclusions are drawn from these studies.

 

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