Design Of Silkworm Incubation Control System Based On Fuzzy Expert Control Technology

Silkworm egg incubation temperature and humidity controlling is important for the silkworm egg production.Incubation rooms are semi-enclosed space,the space temperature and humidity are big time-delay system,and there is uncertainty in the coupling between temperature and humidity what influenced each other.Temperature and humidity control system is difficult to establish an accurate and widely applicable mathematical models,for incubation temperature and humidity control classical control theory is hard to achieve the desired results.Fuzzy expert system is based on expert knowledge,based on fuzzy logic inference methods in a particular area or system for analysis,judgment and decision-making,and the Fuzzy expert system applied in temperature and humidity control will close to the experts control idea,will to achieve better results.We First to analyze how to control the ambient temperature and humidity during the embryonic development of silkworm eggs that to fit each stage of the anatomy and physiology,according to the incubation technical regulations and other documents,to determine the two-stage incubation control methods and to determine Scheme of the control system.design of temperature and humidity data acquisition and control node with microcontroller and used PC software to design the control algorithm.Then using wireless SOC chip to design the hardware and software of temperature and humidity acquisition and control system,designing the circuit and calculate parameters of the key elemen.And programming for each functional module and design temperature and humidity monitoring wireless network based protocol stack.Finally design fuzzy expert system with fuzzy toolbox in matlab.design data reading and display interface base on.the system use VB.net calling fuzzy expert system that have designed in matlab to get three parameters of PID control system,and then sent to the microcontroller plus Warming humidity control.the control system has been probated in Silkworm farm for two years,.he control system goes well.Fuzzy expert control technology has good practical value and promotion prospects in the field of temperature and humidity control.