DocumentCode :
2529011
Title :
Exploration of different parameter selection in fuzzy control applications on microcontroller
Author :
Phongpensri, C. ; Sripanomwan, K.
Author_Institution :
Dept. of Comput., Silpakorn Univ.
fYear :
2008
fDate :
19-21 Nov. 2008
Firstpage :
1
Lastpage :
6
Abstract :
In this paper, we explore memory usage and speed of execution when developing fuzzy applications on a microcontroller. To develop a fuzzy system, various parameters need to be select. Different parameters result in different degrees of accuracy and give different memory cost and execution time. In the experiments, we consider two typical controllers: fuzzy fan control and fuzzy pendulum. We target at PIC18F8722 microcontroller. We implement the example various fuzzy APIs in C for the microcontroller for testing the characteristics of typical fuzzy programs. We explore the tradeoff between the memory cost, and speed. The results show that using table lookup for fuzzy set approach is faster than the calculation. Max-min inference is not always faster than max-product operation. The code size for the example fuzzy program is around 20-30K. The number of instructions increases when we use complex fuzzy inference operation and defuzzification. The data size is increased linearly when the size of fuzzy sets grows.
Keywords :
fuzzy control; fuzzy set theory; microcontrollers; pendulums; table lookup; PIC18F8722 microcontroller; fuzzy control applications; fuzzy set approach; fuzzy system; max-min inference; max-product operation; memory usage; parameter selection; table lookup; Computer architecture; Consumer electronics; Costs; Fuzzy control; Fuzzy sets; Fuzzy systems; Hardware; Microcontrollers; Table lookup; Testing; Embedded Systems; Fuzzy Applications; Microcontroller; PIC18F8722;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
TENCON 2008 - 2008 IEEE Region 10 Conference
Conference_Location :
Hyderabad
Print_ISBN :
978-1-4244-2408-5
Electronic_ISBN :
978-1-4244-2409-2
Type :
conf
DOI :
10.1109/TENCON.2008.4766647
Filename :
4766647
Link To Document :
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