通用硬件模糊控制器研究
On the hardware realization of general fuzzy controller
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摘要: 提出了一種基于多值邏輯電路的模糊控制器硬件實現(xiàn)方案,采用規(guī)則分時進行硬件模糊推理,不同規(guī)則的推理結(jié)果合并后形成模糊輸出,經(jīng)模糊判決后形成精確量輸出。該方案的復(fù)雜性不受規(guī)則數(shù)量的影響,執(zhí)行速度不受語言變量維數(shù)的影響,該方案通過改變存儲器數(shù)據(jù)可以方便地調(diào)整隸屬度函數(shù)和模糊控制規(guī)則,克服了硬件模糊控制器靈活性差這一重大缺陷,該方案便于以VLSI實現(xiàn)。
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關(guān)鍵詞:
- 多值邏輯; 特征展開近似推理; 模糊控制器
Abstract: A new hardware realization methodology of fuzzy controller based on Multiple-Valued Logic (MVL) circuits is proposed. To the methodology, the hardware fuzzy inference process for different rule is executed in different time. The combination of the inference results of different rules makes fuzzy output, then it is changed to general output by defuzzification. According to this methodology, the complexity of the controller is free from the number of rules and the executive speed free from the dimension of fuzzy variables, furthermore, the choice of membership functions is free and the adjustment of fuzzy control rules is easy. The new methodology can be easily realized by using the very-large-scale-integration technique. -
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