基于微控制器的模糊控制算法实现

Implementation of fuzzy control algorithm based on microcontroller

为了在微控制器中实现模糊控制算法,在Matlab/Simulink环境中建立了自动洗衣机的模糊控制系统。基于该模糊控制系统,首先建立数据提取模型,并通过M文件编写算法,提取数据,得到了二维数组;然后建立RTW(Real-Time Workshop)自动代码生成模型,并将所得二维数组导入模型的2-D Lookup Table模块,利用Matlab软件的RTW功能生成自动代码,分析代码中的二维查表插值算法;最后,将该算法写入微控制器,并进行了试验验证。结果表明,微控制器的运行结果与模型的离线仿真结果基本一致,所设计模糊控制器能够满足控制的实时性和精度要求。

In order to realize the fuzzy control algorithm in the microcontroller,a fuzzy control system of the automatic washing machine is established in the Matlab/Simulink environment.Based on the fuzzy control system,the data extraction model is established,and a two-dimensional array is obtained by M-file algorithm.Then,the RTW automatic code generation model is established,and the two-dimensional array is imported into the 2-D Lookup in the model.The table module uses the RTW function in Matlab to generate automatic code,analyzes the two-dimensional Look-up Table interpolation algorithm in the code,and finally writes the algorithm into the microcontroller for experimental verification.The results show that the operating results of the microcontroller are basically the same as the offline simulation results of the model,which can meet the real-time and accuracy requirements.