基于单片机的大棚温湿度控制系统设计  

Design of temperature and humidity control system in greenhouse based on MCU

作　　者：郭荣艳[1] 胡翔[1] 

机构地区：[1]周口师范学院物理与电子工程系,河南周口466001

出　　处：《周口师范学院学报》2012年第5期44-48,共5页Journal of Zhoukou Normal University

基　　金：河南省教育厅自然科学研究计划项目(No.2008B510027;No.2011B510021);周口师范学院教学改革研究项目(No.J2010016;No.J2010072)

摘　　要：针对目前温湿度控制现状,设计了一种大棚温湿度控制系统,给出了系统的硬件电路、软件设计思路.该系统以单片机AT89C52为控制中心,采用SHT71为温湿度检测元件,实时监控温湿度的变化.单片机与智能传感器相连,采集并处理传感器的测量数据;通过LCD12864实时显示温湿度的数值;当温度超出允许范围时,电机开始启动来调节温度,从而实现对整个温湿度控制系统的管理.这种温湿度控制系统具有传感精度高、易于管理等优点.According to the present situation of temperature and humidity control, a control system on temperature and humidity of greenhouse is designed, consisting of hardware circuit and software design. The system can accomplish real-- time control on temperature and humidity, taking MCU AT89C52 as control core and SHT71 as sensing element of temperature and humidity. MCU and intelligent sensors are linked together, collecting and processing measured datas with intelligent sensor. Real - time temperature and humidity values can be displayed through LCD12864. When temperature exceeds the al- lowable range, the motor will be started to adjust the temperature, so as to management and control the whole temperature and humidity system. This kind of temperature and humidity control system is easily managed with high precision.

关 键 词：AT89C52 SHT71 LCD12864 温湿度控制系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]