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A new approach for quality control of sound speakers combining type-2 fuzzy logic and fractal theory

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2 Author(s)
Melin, Patricia ; Dept. of Comput. Sci., Tijuana Inst. of Technol., Chula Vista, CA, USA ; Castillo, Oscar

We describe the application of type-2 fuzzy logic to the problem of automated quality control in sound speaker manufacturing. Traditional quality control has been done by manually checking the quality of sound after production. This manual checking of the speakers is time-consuming and has occasionally been the cause of errors in quality evaluation. For this reason, we developed an intelligent system for automated quality control in sound speaker manufacturing. The intelligent system has a type-2 fuzzy rule base containing the knowledge of human experts in quality control. The parameters of the fuzzy system are tuned by applying neural networks using, as training data, a real time series of measured sounds as given by good sound speakers. We also use the fractal dimension as a measure of the complexity of the sound signal

Published in:

Fuzzy Systems, 2002. FUZZ-IEEE'02. Proceedings of the 2002 IEEE International Conference on  (Volume:2 )

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