Abstract

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Title:: Design of Intelligent Control System in Greenhouse Based on Double Fuzzy Controller

Author(s):: XING Xijun; SONG Jiancheng; LIN Lingyan; (Shanxi Key Laboratory of Mining Electrical Equipment and Intelligent Control,Taiyuan University of Technology/National & Provincial Joint Engineering Laboratory of Mining Intelligent Electrical Apparatus Technology,Taiyuan，Shanxi 030024)

Keywords:: greenhouse; multiple variables; fuzzy control; ZigBee; distributed control

Abstract:: In the view of the problems existing in greenhouse control systems in China,such as few control variables,low degree of intelligence and backward communication mode,etc,an intelligent control system in greenhouse based on double fuzzy controller was designed.Distributed network structure is adopted in the system,and the PLC is used to control the system.The acquisition of environmental parameters used ZigBee wireless sensor technology.The intelligent control algorithm selected double fuzzy control method to control the temperature,humidity,light intensity and carbon dioxide concentration.The intelligent information centralized monitoring platform was designed by the development platform of Kingview,which could realize the display,storage and analysis of date.After the field debugging and operation in the demonstration base.The results showed that，the system could accurately collect various environmental variables in the greenhouse,and realize adaptive intelligent control,so as to achieve the suitable environment for greenhouse crop growth.It had a certain reference value for the research work of intelligent planting of greenhouse crops in the future.