Study Of Intelligence Greenhouse Control System Based On Adaptive Prediction Fuzzy Controller

Facility agriculture is an important part of our country's agriculture industry sustainable development. Modern greenhouse is the essence of the facility agriculture and the core of the industrialized agriculture. To built a greenhouse is to create a climatic conditions that can fit crop to grow and build a artificial meteorological environment that can eliminate the restrict , which the temperature brings to the growth of the crop.Further more, hothouses can overcome the restrict that environment brings to the growth of the crop. It can make different crops grow in the unfitted seasons and decrease the effect of the season. So it cast off the dependence that crop to natural condition partial or complete. Aiming at the domestic greenhouse control system status, the paper bases on a lot of domestic and overseas greenhouse control papers, put adaptive prediction technology, fuzzy control technology, computer control technology, SCM control technology and serial communication technology into greenhouse system's design and manufacture via analyzing characteristic of the environmental factors in the greenhouse. The study develops a series of control system to achieve integrated control to the environmental factors and provide crops a well environment to grow. This system has high universality , stated intelligentize, low cost and accords to the situation of our country.The greenhouse system bases on the greenhouse system's character, primary control the four parameters including temperature, humidity, illumination degree and carbon dioxide (CO2) concentration. The system also considers the complicated situation inside the greenhouse. On one side , it is hard to built accurate mathematics matrix. On the other side, the system has strong coupling and lag capability. So the study adopts the arithmetic which combines adaptive prediction and fuzzy control to achieve integrated control to temperature and humidity and decrease the infection that coupling and lag capability brings to the system output control.The paper adopes host computer and lower computer two-level control. The host computer mainly achieve data storage, control feeding parameters to lower computer and display the real time data. The host computer control interface is compiled with VB. The lower computer mainly receive the collection value of the forward channel and send it to the host computer. The lower computer analyses and treats the collection value and the output signal through the circumscribed circuit amplifier control executive mechanism. The preliminary design to the circumscribed hardware circuit has been done in this paper.This paper put forward the control system to the greenhouse control.