论文--基于单片机51单片机的湿度控制器设计.doc

毕业设计说明书
基于单片机51单片机的湿度控制器设计
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提交日期: 2014 年 12 月日


摘要
随着科技的发达,以及人民生活水平的提高,人民室内生活环境不断改善,出现了空调、智能温度器、室内净化器等一系列改善人民生活条件的高科技产品。然而这并不能满足人民越来越高的生活需求,有些人提出了湿度的要求,本设计就在此基础上,设计一种基于89C51单片机控制的智能湿度控制系统。
此系统采用了DHT11系列单片集成传感器;而且,通过软件编程,再加上相应的控制电路(继电器等部分电路组成),设计出可以自动的调节当前环境的相对湿度:当室内空气湿度过高时,控制系统自动启动抽风机,减少室内空气中的水蒸气,以达到降低空气湿度的目的;当室内空气湿度过低时,控制系统自动启动蒸汽机,增加空气的水蒸气,以达到增加湿度的目的,使空气湿度保持在理想的状态;键盘设置及调整湿度的初始值,另外在设计个过程当中,考虑了处理器抗干扰,加入了单片机监视电路。
通过对基于单片机的相对湿度控制器设计,加深对传感器技术及检测技术的了解,巩固对单片机知识的掌握,并系统的复习本专业所学过的知识。
关键词:湿度控制,传感器,湿度调节
Abstract
With the development of science and technology, the improvement of and the living standards of the people, the people are improving constantly in indoor living environment, the air conditioner , intellectual temperature device , high-tech products of such people's living conditions of a series of improvement as the purifying device ,etc. in the room have appeared. But this can not meet higher and higher life demands of people , some people propose the demand for the humidity, this text is just on this basis, design one on the basis of intellectual humidity control system which 89C51 MCU controlled.
This system uses a series of monolithic integrated sensors DHT11. And, through software programming, in addition, corresponding control circuit (such some circuit as photoelectric coupling and relay ,etc. make up ), design the relative humidity of the present environment of regulation that can be automatic: When the indoor air humidity is too high, the control system starts the exhauster automatically, reduce the vapor in the indoor air, in order to achieve the goal of reducing air humidity; When the indoor air humidity is too low, the control system starts the steam engine automatically, increase the vapor of the air , in order to achieve the goal of increasing humidity , makes the air humidity keep at ideal state; The initial value of the humidity that the keyboard is set up and adjusted, in designing a course in addition, have