| Since 1980s,our agricultural engineers and technicians have been studying on controlling technology of single environmental factors such as temperature, humidity, illumination, Carbon dioxide consistency etc. in Greenhouse. With the direction of my tutor and Prof. Yu Yongchang,I made beneficially study on the Controlling-Intelligence of the environmental parameters in modernized Greenhouse. At the same time, I designed a Set of imitative intelligence control system which attempts to apply intelligence in the Automatic-Controlling system of environmental parameters in modernized Greenhouse.The Automatic-Controlling system,in the aspect of designing hareware,mcluding Chorcing chip ,extending memory,designing the keyboard and display unit,choicing Sensor and designing executive mechanism etc. Hardware affects the stability of the system directly and it also is an important part of the system cost.The system emphasized on attempting to applyingFUZZY in the Automatic-Controlling Technology of Greenhouse environmental parameters.Fuzzy Controll is based on the theory of Fuzzy Mathematics,Fuzzy Language,Fuzzy Logical,and adopt Digital Controlling from which use of computer technology and has feedback and structure. Fuzzy Controll is a law which ,on the base of basic concept of control and human analysis experience, make it a principle which chip can make controlling .The fuzzy way classify the deviation of collecting data and setting seven grade such as PL.PM.PS.zero.NL.NM.NS.to control,thus not only save energy resources but also enhance precision.In this system,software include main program model, scanning keyboard subprogram model,collecting data subprogram model and suspending model etc. Main-program is the monitoring program of the system which initiate every part. Subprogram only realize part-function.After assembled and debugged,the imitial system achieve the expected aim.In the end,the thesis analysis the existing problem of the imitial system and point out some improving idea.
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