基于STM32的大棚智能通风系统的设计与研究

Design And Research of Intelligent Ventilation System for Greenhouse Based on STM32

设计一种大棚智能通风系统,可根据大棚内温度、CO2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CO2浓度。大棚温度采集采用DS18B20,CO2浓度采集采用MH-Z14A模块,温度和CO2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 CO2 concentration in the greenhouse.The temperature of the greenhouse was collected by DS18B20,the CO2 concentration was collected by MH-Z14A module,the temperature and CO2 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.