基于机理模型的现代温室湿度系统建模

温室模型定性地描述了在特定温室结构、材料的条件下,温室作物生理过程和室外气候相互作用的过程.温室湿度不仅受温室外温度、湿度、光照强度等环境因子影响,而且与作物蒸腾作用等生理过程相关.基于能量和物质平衡理论,从辐射、通风、水气、热交换等基本过程综合得出温室湿度小气候模型,研究温室湿度动态系统的各影响因素,分析小气候模型的特点.在小气候模型基础上,推导并验证了仿真模型的有效性,为研究温室输入输出建模以及控制提供了充分的模型依据.实验证明,机理模型能在一定程度上模拟温室湿度动态系统,为研究人员更好地种植作物以及温室控制提供了必要的理论基础.

Modern Greenhouse Humidity System Modeling Based on Mechanism Model

Greenhouse models can qualitatively describe the physiological process of greenhouse crops and the interaction with the outdoor climate under specific greenhouse structures and supplies.Greenhouse humidity is not only affected by the environmental factors outside the greenhouse,such as temperature,humidity,light intensity,but also releated to the physiological process of crop transpiration,etc.Based on the theory of energy and material balance,from some basic processes like radiation,ventilation,moisture and heat exchange process,we deduce the comprehensive greenhouse humidity microclimate model and analyze the characteristics of the model.On the basis of the microclimate model,we verify the validity of the obtain simulation model for greenhouse input and output modeling and control.What the experiment proves is that the mechanism model can simulate greenhouse humidity dynamic systems to some extent,which provide the theoretical basis for better crops growth and greenhouse control.