Takagi-Sugeno and Mamdani Fuzzy Control of a Resort Management System
Independent thesis Advanced level (degree of Master (Two Years))Student thesis
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.
Place, publisher, year, edition, pages
2012. , 46 p.
Fuzzy set theory, Takagi-Sugeno Controller, Mamdani Controller, Resort Management System, T-norms, OWA
Mathematical Analysis Mathematics
IdentifiersURN: urn:nbn:se:bth-2661Local ID: oai:bth.se:arkivex46A32690AFB24623C12579B3007CEFC8OAI: oai:DiVA.org:bth-2661DiVA: diva2:829949
UppsokPhysics, Chemistry, Mathematics