Taking the temperature and humidity demand of crops in agricultural glasshouses as the research object,re-al-time monitoring of soil water content,light intensity and indoor temperature of agricultural glasshouses is conducted to ensure the temperature and humidity demand of crops through irrigation method,shading strategy and ventilation strategy.The programmable controller(PLC)is used to set up the temperature and humidity control system,which is divided into soil moisture,light intensity and indoor temperature information acquisition,using the upper computer to analyse and process the data,and generate commands according to the control program.It is also possible to view the temperature and humid-ity situation of the agricultural greenhouse through the upper computer and at the same time adjust the temperature and humidity in the agricultural greenhouse by automatic or manual adjustment.
关键词
PLC/农业大棚/温湿度控制系统/控制策略/上位机
Key words
PLC/agricultural greenhouse/temperature and humidity control system/control strategy/upper computer
维普
万方数据