基于单片机的药品仓库温湿度报警系统设计
本科毕业设计（论文）
学生学院 信息工程学院 专 业 测控技术与仪器 （光机电一体化方向） 年级班别 20 级（1）班 学 号 学生姓名 指导教师
20 年6月
摘 要
药品的质量关系到人的健康及生命安全，因此药品的保存至关重要，而药品仓库的温湿度影响药品的保质与药效，所以我们需要对药品仓库里的温度与湿度实时检测与控制。
本论文提出一种药品仓库的温湿度报警设计方案，该方案包括单片机最小系统、温湿度传感器检测模块DHT11、按键模块、报警模块、液晶显示模块、降温控制模块、加湿控制模块和电源部分。以STC89C52单片机最小系统作为核心控制电路，温湿度传感器检测环境的温度和湿度经过单片机计算处理后在LCD1602液晶上把温度和湿度显示出来。当实际温度大于设置温度的上限值时启动降温继电器控制降温，一直降温到下限值时停止降温。当实际湿度小于设置湿度的下限值时启动加湿继电器对室内加湿，一直加湿到设置的上限值时停止加湿。
关键词：药品仓库、单片机STC89C52、温湿度控制
Abstract
The quality of medicines relates to human health and life safety, so the preservation of medicines is vital. The temperature and humidity of the drug store affect the quality and efficacy of the drugs, so we need to check and control the temperature and humidity in the medicine warehouse.
This paper puts forward a kind of the temperature and humidity alarm design scheme of the medicine warehouse, which includes single chip microcomputer minimum system module, temperature and humidity sensor DHT11, cool button module, alarm module, liquid crystal display module, control module, humidification control module and power supply part. The minimum STC89C52 single chip system as the core control circuit, temperature and humidity testing environment temperature and humidity after a single-chip processing temperature and humidity on the LCD1602 LCD display. When the actual temperature is greater than the upper limit of temperature setting start cooling relay control cooling, cooling to the lower limit value to stop cooling. When the actual humidity less than the lower limit of set humidity start humidifying relay on indoor humidifying, humidification until the upper limit of set stops humidifying.
Keywords: Medicine warehouse; microcontroller STC89C52; temperature and humidity
control
测控技术与仪器专业毕业设计
