Intelligent Greenhouse Control System

ABSTRACTION In this paper, a set of fast; precise and high performance intelligent greenhouse control system was set up by using computer technology ,fuzzy control technology and computer simulation technology .It is designed to control the indoor environment parameters such as temperatureJiumidity~CO2 pressure and light intensity .The greenhouse is composed of control module ,raining module, shining-void module, heater module, drift module. The monitor and control system in this designation is composed of sensor module, A/D module, D/A module, control module and actuator module. It used VC-H-6.O as its programming environment to finish the real-time monitor and control function such as real-time data collection ,real-time data showing,real-time data graphics drawing, real-time control parameter modiflng, etc. The system is a nonlinear, large lagging, multiple input and output object. It is hard to found the precise model and difficult to attach a satisfactory effection in conventional control mothods. So we had also studied in the system抯 control methods . In this paper, the firzzy control is introduced into the control system to control the environmental parameters .We founded the artificial decouple rules to solve the couples among the input quantities. We also used the simulation tools ?SIMULINK ?in Matlab to simulate the output of the control system .We get the simulation figure provided that the controled object is a quadratic system .From the control graphics we can analysis and compare the difference between different control methods. My research is designed in the principle of cultivation greenhouse of maoershan experimental woodland. In this designation ,we not only considered of the ecology and social effect but also developed flowers, crops, and other high effective plants. We fly to get the largest economic effect by using the modem technical methods sufficiently~ correctly and effectively. The designation of the intelligent greenhouse control system has the important meanings to improve the Green-coverage of our country and to build of our cities and ecology environment It is possible to cultivate and produce plants industrialy. This research must accelerate the development of our foresfly undertaking and improve the inclusion of technique in forestry production.