作　　者： ;

机构地区： 广东石油化工学院

出　　处： 《广东石油化工学院学报》 2013年第4期42-46,共5页

摘　　要： 传统模拟式温度、湿度传感器通常存在复杂的校准和标定问题。使用DHT11数字型温湿度复合型传感器,设计了一种基于AT89C52单片机温湿度监控和报警系统。系统可以实时将当前环境温湿度数字显示在液晶LCD上,实现温湿度的监控功能,并且可以设定温度和湿度的上下限,当系统检测到当前温湿度超出界限时可以通过蜂鸣器智能报警。研制出来的系统精度高、功耗低、使用方便,可以满足日常生活和工厂环境等的温湿度监控需要。 Becatuse of the complicated calibration problem of the classical ＇analog sensors of temperature, and humidity, a new type of temper- ature and humidity monitoring and alarm system is designed, which is based on a MCU AT89C52 and a digital temperature and humidity se- nor DHTI I. The system can display the temperature and humidity of environment on LCD at real time, thus the monitoring function is real- ized. In addition, the upper and lower limits of temperature and humidity can be set. When the temperature or humidity is beyond the limit, the system will alarm through a buzzer. The system is manufactured and can operate with high accuracy, low power assumption and conve- niently. It can satisfy the temperature and humidity monitoring requirements in daily life and factory environment.

关 键 词： 温度监测 湿度监测 单片机 报警系统

领　　域： [自动化与计算机技术] [自动化与计算机技术]