VHDL Implementation for Fuzzy Logic Temperature Controller

Provided by: International Journal of Computer Applications
Topic: Hardware
Format: PDF
In this paper, the authors illustrate an implementation of fuzzy logic based temperature controller using VHDL in Modelsim 6.4. Now-a-days, fuzzy controller designs have become valuable in large number of applications. There are three basic steps for fuzzy logic controller i.e. fuzzification of inputs, defuzzification of outputs, and rule base. In this designed temperature controller there are 2-inputs, 1-output and 5-membership functions. According to the 2 inputs (temperature and humidity), the output (speed of air conditioner) is controlled based on relation between the fuzzy set (low, med, high, dry, moist and wet) of the 2 input variables.

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