摘要
在现代生产领域,温湿度的监测与控制应用广泛,对于监测技术的研究也越显重要。鉴于国内外温湿度测量技术的发展现状,基于AT89C51单片机和DHT11数字式温湿度传感器设计实现了一个温湿度监测系统。硬件电路包括微控制器模块、数据采集模块、显示电路、报警电路以及按键设置5个部分,用户可通过按键设定温湿度上下限,当测得的数据超出所设定的范围时发出报警信号(蜂鸣器蜂鸣)。软件部分由主程序和各部分子程序构成。系统精确度较好,在日常环境监测以及生产活动中都有一定的应用价值。
In today＇s production society,temperature and humidity detection and control system is used widely. Based on the current situation of the temperature and humidity detection syetem in china or abroad,this paper uses MCU AT89C51 and DHT11 to design a practical temperature and humidity detection system. Hardware design includes MCU module,DHT11 sensors module,display circuit,the alarm and key control design. Temperature and humidity upper and lower limits can be setted by users,and when the true temperature and humidity exceed this limits,the bee Buzzer beep will receive an alarm signal. Software includes main program and subroutines. This system is in better precision and of high values in daily detectation and real production.
出处
《微型机与应用》
2016年第6期32-34,共3页
Microcomputer & Its Applications
