基于MATLAB的温室灌溉系统模糊控制的模型

Simulation of Fuzzy Expert Control for Greenhouse Irrigation System Based on MATLAB

依据温室环境与作物蒸腾之间的相互影响,结合作物生理干旱和大气干旱的因素,建立了温室模糊控制系统的MATLAB仿真模型,包括对控制变量的选取、模糊集的定义、论域等级的划分、隶属函数的选择及模糊控制规则的制定,并用Simulink对控制系统进行了仿真分析。仿真结果证明该温室灌溉模糊控制策略的有效性及合理性。

According to the mutual influence of greenhouse environment and crop transpiration,as well as the factors of physiological drought and atmospheric drought in crop,a mathematic model was constructed for the irrigation system in the greenhouse.The corresponding fuzzy expert control system for irrigation system in greenhouse was established by using the Simulink tools of MATLAB,including the choosing of variables,definition of fuzzy sets,grade partition of the universes,choosing of membership functions and establishment of the fuzzy control rules.The simulation results testified the validity and reasonability of the fuzzy control strategy for the irrigation system control in the greenhouse.