基于STC单片机的智能化病房温控系统设计与实现

Design and research of intelligent ward temperature control system based on STC microcontroller

摘要:

该文以搭建具有模块化、智能化、精确化性质的病房温控系统为目标，对部分三甲医院现有温控系统展开了具体研究，对其现有问题展开了分析，提出和设计了一种基于STC单片机的智能化病房温控系统；该系统以PC端系统作为上位机端，单片机硬件系统作为下位机端，STC89C51作为单片机主控板块，温湿度测量使用DHT11传感器，室内CO2浓度采用T6713-5K传感器测量，并通过接口将数据传输至单片机，温湿度及CO2浓度等信息通过LCD1602显示屏展示，同时通过PID算法参数调整，实现室温调节，另外上位机端设置蜂鸣器对超出温湿度及CO2浓度阈值的进行预警；经实验测试该系统实现了病房温湿度的有效控制及病房环境数据的可视化；经实际应用满足了部分医院病房温湿度智能化控制要求，使温湿度维持在20℃-25℃和40%RH-55%RH之间

Abstract:

With the goal of building a modular, intelligent and precise ward temperature control system, this paper conducts a specific study on the existing temperature control systems of some tertiary hospitals, analyzes their existing problems, and proposes and designs a An intelligent ward temperature control system based on STC single-chip microcomputer; the system uses the PC terminal system as the upper computer terminal, the single-chip hardware system as the lower computer terminal, the STC89C51 as the single-chip main control plate, the temperature and humidity measurement using DHT11 sensor, indoor CO2 concentration using T6713 -5K sensor measurement, and transmit the data to the single-chip microcomputer through the interface, the temperature and humidity and CO2 concentration and other information are displayed on the LCD1602 display screen, and at the same time, the PID algorithm parameters are adjusted to realize the room temperature adjustment. and CO2 concentration threshold for early warning; through experimental tests, the system realizes effective control of ward temperature and humidity and visualization of ward environmental data; through practical application, it meets the requirements of intelligent control of temperature and humidity in some hospital wards, keeping the temperature and humidity at 20 ℃ Between -25°C and 40%RH-55%RH.