Research On Monitoring And Control System Of Groups Of Rice Seedling Shed Environment

Along with the development of facilities agriculture, rice seedlings factory has become themain way of cultivating rice seedlings. And on rice seedlings group in the midst of implementationof the environmental monitoring, rice seedlings for providing the best growth environment willbecome the seedlings factory in the process of extremely important one annulus.According to the water environmental system has many technologies tent variables, largeinertia and nonlinear characteristics, this design using fuzzy predictive control theory, theseedlings to analyze the data and environment, determined the rail of tent reliable environmenttemperature, humidity the rate of change fuzzy regression forecasting model. Through to theforecast period Settings, in great degree offset the seedlings tent environment system of hysteresiseffect, which could well to avoid the excessive control and actuator frequent action situations.The system of fuzzy controller chose double input, and single output of two dimensionalmodel of fuzzy controller, membership function using triangle membership functions. At theconclusion of the seedlings production experience designed on the basis of the fuzzy control ruletable. In the control application, the first through the software to input variables fuzzed, againthrough the inquires the fuzzy control rule table get to control the amount of fuzzy value, finallythrough to the output of the fuzzy to get accurate control volume.The system uses the PC and the combination of a machine control mode, overcome when usedalone single-chip microcomputer control memory space is small, can only simple calculationfaults. The system to be able to store large amounts historical data, and can be compared to thehistorical data and routine operations. And it is simple, reliable, strong anti-jamming, and easy tomaintenance of advantage, have very good promotion prospects.