基于单片机的温湿度检测报警系统设计  

Temperature and Humidity Detection System Based on MCU

作　　者：尹华涛[1] 武林俊[1] 

机构地区：[1]河南工业大学信息科学与工程学院,郑州450001

出　　处：《价值工程》2016年第29期135-136,共2页Value Engineering

摘　　要：系统采用数字输出温湿度复合传感器DHT11和具备低耗能、高性能的8位单片机——AT89S51以及高集成的LCD1206字符型液晶显示模块、蜂鸣报警器组成温湿度检测报警器,用户只需通过按键来设定一个符合自身的温湿度范围,系统检测出的实际温湿度数值,经过系统的数据处理,与预先设定的温湿度范围值进行对比,当实际数值超出预先设定时,报警模块电路便开始工作,即发声报警并输出数字信号。软件部分包括主程序、显示模块子程序和测温湿度子程序。The system is combined with a calibrated digital output temperature and humidity sensors, DHT11, a low energy consumption, high-performance 8-bit microcontroller, AT89S51, a high integrated LCD1206 character LCD display module, alarm buzzer.For physical manipulation, the user simply pull on a button to meet with their own temperature and humidity range. The actual temperature and humidity value is detected by the system, after the data processing system, and the temperature and humidity range of pre-setting value comparison, when the actual value exceeds the pre-settings, alarm module circuit will be work, that is audible alarm to alert user. The system need software part, which is comprised by the main program,（display module） and subroutine（temperature and humidity）subroutines.

关 键 词：AT89S51单片机 LCD1206显示器 DHT11传感器 蜂鸣报警器 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]