摘要
设计一种大棚智能通风系统,可根据大棚内温度、CO_2浓度自动调整百叶窗打开程度来调节大棚内自然通风程度,在一定范围内调整大棚内温度,控制CO_2浓度。大棚温度采集采用DS18B20,CO_2浓度采集采用MH-Z14A模块,温度和CO_2浓度数据发送给STM32单片机进行分析处理后,单片机控制步进电机正反转来控制百叶窗,单片机同时连接光敏电阻和DHT11模块检测光强度和湿度,并实时显示在TFT-LCD屏幕上,便于用户查看,实现大棚种植的智能化管理。
A kind of intelligent ventilation system in greenhouse is designed,which can adjust the opening degree of shutters automatically according to the temperature and CO_2 concentration in the greenhouse. The temperature of the greenhouse was collected by DS18 B20,the CO_2 concentration was collected by MH-Z14 A module,the temperature and CO_2 concentration data will be sent to STM32 single-chip Computer for analysis and processing,then,the single-chip computer controls the positive and negative rotation of the stepping motor to control the shutter. The single-chip computer also connects the photosensitive resistor and the DHT11 module to detect the light intensity and humidity and is displayed on TFT-LCD screen in real time,which is convenient for users to view and realizes intelligent management of greenhouse planting.
引文
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