Study On Agriculture Greenhouse Control System Based On Virtual Instrument Technology

In recent years, with the development of facility agriculture which towards to intensive and scaled and the advancement of greenhouse intelligent management, greenhouse control system realizes remote communication, then realizes integration of greenhouse production and its management is an inevitable trend of the development of the modern intelligent greenhouse. Greenhouse control system is mainly based on temperature, humidity, light and wind speed, wind direction, rainfall and other climate factors of the external environment, and based on greenhouse expert system and users' parameter setting, to regulate the greenhouse temperature, humidity, ventilation, light and other environment factors through a series of control measures, and create the suitable greenhouse ecological environment which fits the growth the crops.In this paper, according to the character of environment control in greenhouse, and using sensors, data acquisition card and other hardware to automatic collect data of four major environmental factors which is greenhouse temperature, humidity, light, carbon dioxide concentration. On software, system uses LabVIEW virtual instrument platform, greatly improves accuracy of detection and control and data processing speed. And realizes real-time acquisition of greenhouse environment parameters, real-time display of acquisition information, accurate output of control signals and automatic process of data, reduces human intervention, increases stability of measurement and control syetem.