基于单片机温湿度检测控制.doc
文本预览下载声明
基于单片机的温湿度检测与控制
专 业:通信工程 学 号:20100610080203
学生姓名: 张艳 指导老师: 黄德昌
摘要
温湿度等环境参数是气象环保、煤矿工业、精准农业等领域的主要因素,对其实时、准确的监测显得非常关键。设计智能的环境参数无线监测系统来解决上述难题显得尤为必要。
本次设计是采用MSC-51系列单片机中的AT8951和DHT11的低成本的温湿度的检测系统。单片机、温湿度传感器、显示模块、报警器以及键盘等部分由温湿度传感器及字符型液晶模块构该系统电路简单、工作稳定、集成度高,调试方便,测试精度高,具有一定的实用价值。关键词AT89S51 DHT11
ABSTRACT
Environmental parameters, such as temperature and humidity, sunshine is the main factors to meteorological environmental protection, coal mine industry, precision agriculture, so actually and accurate monitoring is very critical. So, designing a intelligent environmental parameters monitoring system to solve the problem is necessary.
This design is the use of MSC-51 Series MCU AT89S51 and DHT11 in the low-cost temperature and humidity detection system. This design includes the design of hardware and system software design. Hardware circuit includes a microcontroller, temperature and humidity sensors, display module, the alarm and the keyboard 5, the DHT11 temperature and humidity sensor and 1602 constitute a system of character LCD module display module, the system circuit is simple, stable, high integration, commissioning Convenient, high precision, has some practical value. Temperature and humidity control circuit in which the temperature and humidity sensors and compare the value of the preset temperature alarm circuit, the user input required pre-default value, when the actual temperature and humidity measurements of temperature and humidity is greater than the preset value, an alarm signal (bee Buzzer beep). Software part includes the main program, display routines, subroutines side temperature and humidity.
Through the design, manufacturing and testing , the system can realize stable and accurate monitoring the environment temperature and humidity in the large area and complex environment, and can send the results to the screen , and achieve the desired goals. This system can be widely used in meteorological environmen
显示全部