数字存储式温湿度测量系统设计  

A Digital Storge Temperature and Humidity Measuring System

作　　者：高志滨[1] 

机构地区：[1]漳州城市职业学院电子信息工程系,福建漳州363000

出　　处：《常州工学院学报》2016年第5期35-38,共4页Journal of Changzhou Institute of Technology

摘　　要：为实现实验室实验环境检测与管理,准确测量温湿度,提出一种数字存储式温湿度测量系统设计方案。硬件电路方面,采用STC89C52RC为主控芯片,设计了单片机最小系统电路、DHT22温湿度传感器控制电路、SD卡控制电路、LCD液晶显示控制电路、按键控制电路和报警电路,并且借助Altium Designer软件完成印制电路板设计。软件系统设计包括初始化程序、温湿度采集程序、LCD液晶显示程序、SD存储卡驱动程序、按键处理程序、报警程序等。实验结果证明,数字存储式温湿度测量系统运行稳定、测量精度高。A scheme for digital storage temperature and humidity measuring system is proposed to moni- tor and control the laboratorary environment through accurate temperature and humidity measurement. For hardware circuit, the system is designed with STC89C52RC as the controlling core. The smallest system cir- cuit of single-chip microcomputer, DHT22 control circuit, SD memory card control circuit, LCD display cir- cuit, button control circuit and alarm circuit are designed. The PCB is designed by the software Altium Desig- ner. The software system includes initialization program, temperature and humidity acquisition program, LCD display program, SD memory card driver program, key handing program, alarm program, etc.. The experimental results show that the digital storage temperature and humidity measuring system is stable and precise.

关 键 词：数字存储式 温湿度测量系统 STC89C52RC DHT22 SD存储卡 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]