Inlämning av Examensarbete / Submission of Thesis

Lujiao Tan , pp. 46. ING/School of Engineering, 2012.

The work

Författare / Author: Lujiao Tan
Titel / Title: Takagi-Sugeno and Mamdani Fuzzy Control of a Resort Management System
Abstrakt Abstract:

By means of fuzzy set theory as well as Takagi-Sugeno and Mamdani fuzzy controller, this paper presents the investigation of a Resort Management System implemented by a combination of a T-S model and a Mamdani model. It demonstrates the procedure of the specific premise parameters identification and consequence parameters identification performed by regression knowledge in the T-S model, and the process of the fuzzification, the rule base creation and the defuzzification with COG technique in the Mamdani model. Therefore, an aggregation between T-S controller and Mamdani controller applied in the field of management by a novel angle is illustrated, which, as a result, devotes an improved management system that shares great convenience in the control process when combined with mathematics.

Moreover, a modification of the conventional Takagi-Sugeno and Mamdani controller is demonstrated in conjunction with fuzzy operations t-norms and OWA by adjusting the -value, which is used in the calculation of final outputs in the T-S model and the computation of rule consequences in the Mamdani model. The algebraic intersection, bounded intersection as well as the -parameter t-norm are the t-norms which are going to be introduced. Besides, we have tested that t-norms generate the same alpha values when the membership degrees meet the boundary with the value of 1 or 0 while OWA can still yield a well-balanced result different from the one computing by minimum operation. Nevertheless both t-norms and OWA are able to shift the alpha-value in a well-adjusted way when the membership degrees lie in the interval [0,1]. A tendency has been shown that alpha-value tends to decrease by means of t-norms and OWA operations and consequently, the final outputs appear to be reduced.

Ämnesord / Subject: Mathematics\General
Mathematics\Analysis
Nyckelord / Keywords: Fuzzy set theory, Takagi-Sugeno Controller, Mamdani Controller, Resort Management System, T-norms, OWA

Publication info

Dokument id / Document id: houn-8rxunw
Program:/ Programme Mathematical Modelling and Simulation
Registreringsdatum / Date of registration: 02/29/2012
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)

Context

Handledare / Supervisor: Elisabeth Rakus-Andersson
Examinator / Examiner: Håkan Lennerstad
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00

Files & Access

Bifogad uppsats fil(er) / Files attached: bth2012tan.pdf (1085 kB, öppnas i nytt fönster)