| Agriculture is Chinnese largest industry,and it is the lifeblood of the national economy.With the increment of population and the decrement of cultivated land area,how to increase the grain output of crops has become an urgent problem.Greenhouses environment parameters can be changed according to the best growing conditions of plants which can increase crop yields.In this paper,agricultural greenhouses control system has been studied by fuzzy control algorithm in order to reduce environmental impact of coupling,strong delay,nonlinearity,uncertainty and other factors.What’s more,the intelligent control for agricultural greenhouse environment is implemented in embedded control systems.Firstly,the current situation at home and abroad of agricultural plastic greenhouse elaborate control system,clear objectives and content of the study;secondly,elaborate the principles embedded systems and system migration,to prepare for embedded software development.In this paper,Real-time embedded control system is established based on the MCU and arm structure,and Real-time intelligent monitoring program for greenhouse based on WinCE system was designed.It is used in contoling agricultural greenhouses environment and it has realized the real-time intelligent monitoring;again,to fuzzy expert control system study,learn the basics of fuzzy theory,developed in accordance with the rules expert experience.agricultural greenhouse temperature,humidity,light intensity and CO2 concentration and other environmental factors are used as the fuzzy expert system’s input parameters and external shading,internal insulation,wet curtains,fans,circulation fans,side windows,sodiums,CO2 generators and heating equipments are used as the fuzzy expert system’s output parameters.Fuzzy control method is used because of the strongly coupling input parameters,it has solved the decoupling issue and has achieved the desired results;Finally,system testing and the results were analyzed and summarized. |
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