温室草莓—灰霉病病菌模型的模糊控制  

Fuzzy Control of Greenhouse Strawberry-Botrytis Cinerea Model

作　　者：刘敬娜[1] 张铁[1] 赵立纯 LIU Jing-na;ZHANG Tie;ZHAO Li-chun(Department of Mathematics,Northeastern University,Shenyang 110004,China;School of Mathematics and Information Science,Anshan Normal University,Anshan 114007,China)

机构地区：[1]东北大学理学院,辽宁沈阳110004 [2]鞍山师范学院数学与信息科学学院,辽宁鞍山114007

出　　处：《数学的实践与认识》2020年第12期86-93,共8页Mathematics in Practice and Theory

基　　金：辽宁省自然科学基金项目(201800424);国家自然科学基金(11371081)。

摘　　要：针对温室草莓感染灰霉病后不能自然治愈的特点,提出了温室草莓—灰霉病病菌模型.在模型分析基础上,建立控制系统模型.针对模型,结合灰霉病病菌种群对草莓种群的危害程度,建立相应的T-S模糊模型.根据模糊控制方法设计控制器,使灰霉病病菌种群密度保持在不影响草莓种群正常生长的水平.最后,利用数值仿真验证了结论的可行性和有效性.Because the strawberry infected by Botrytis cinerea cannot be recovered naturally,the greenhouse strawberry-Botrytis cinerea model is proposed.On the basis of the qualitative analysis,the control system model is given.Based on the harm of the Botrytis cinerea population to the strawberry population,the corresponding T-S fuzzy model is built up.Using fuzzy control theory,the controllers are designed to keep the density of Botrytis cinerea population under the level which has not impacts on the growth of the strawberry population.Finally,some simulations are carried out to prove the feasibility and effectiveness of the results.

关 键 词：温室草莓—灰霉病病菌模型 模糊控制 T-S模糊模型 

分 类 号：S436.68[农业科学—农业昆虫与害虫防治] TP273.4[农业科学—植物保护]