Application of MCU Technology in Facility Agriculture of the Yellow River Delta

In recent years，single chip microcomputer technology was widely applicated in many fields in China.Now，ability of resistance to natural disasters and environment control of solar greenhouses were really weak.Hardware and software of single chip microcomputer were designed with 89C51 as core component.Parts of hardware included sampling circuit，interface circuits between AD converter and single chip microcomputer，single chip microcomputer and memory circuit，etc.Parts of software were all programmed with assembly language，it included main program，data collection and digital filtering subprograms，etc.Finally，simulation experiment was did with Matlab program.Results showed that system was good at feasibility and control function.