基于单片机的室内智能通风控制系统设计-论文

天津职业技术师范大学Tianjin University of Technology and Education

毕业设计

专业：电气技术教育

班级学号：电气0812班-3号

学生姓名：***

指导教师：张国香教授

二〇一三年六月

天津职业技术师范大学本科生毕业设计

基于单片机的室内智能通风控制系统设计Design of Indoor Intelligent Ventilation Control

System Based on MCU

专业班级：电气0812班

学生姓名：陈晓艳

指导教师：张国香教授

学院：自动化与电气工程学院

2013年6月

摘要

目前，国内大部分住宅室内的污染状况令人担忧。室内空气污染不仅破坏人们的工作和生活环境，而且直接威胁着人们的身体健康。新型的建筑材料带来的日用化学品进入住宅，成为室内严重的污染源;另外，空调的普及使室内通风率明显的下降。这些都造成了室内污染的累积，导致室内的空气质量严重恶化。由于上述种种原因，造成我国大部分居住建筑的通风状况相对较差，基本上不能满足我国《室内空气标准》的有关规定。

在自然通风不能满足需要的时候，往往可以通过机械通风方式来改善室内的热环境和空气质量。论文所研究的室内环境调节系统充分利用温度传感器模块实现智能检测当前环境温度，通过对建筑物室内温度，进而控制送风设备，达到智能调节建筑物室内环境的目的，以此改善室内空气品质，使人们在室内居住的环境更加舒适。

本系统采用层次化、模块化设计。整个系统由数据采集系统、单片机控制系统组成。系统以单片机AT89S52为核心，以DS18B20系列温度传感器等作为测量元件，通过单片机与传感器相连，达到测温控制电机风扇的系统。此系统描述了测温传感器DS18B20与单片机的硬件连接，软件编程设计和各个模块系统进行了分析。此系统可以实时对温度的测量和显示，可通过红外遥控进行需要通风的温度设置。此系统使用起来非常方便、体积小、灵敏度较高、节能、成本低等优点。

关键词：空气品质；单片机；温度；传感器

ABSTRACT

Currently, most houses' indoor pollution is a disturbing problem. Indoor air pollution not only destroy people's working and living environment, but also threat to people's health. New building materials brought chemicals into the house and become the most serious indoor pollution, In addition, the popularization of the air-conditioner decreased the room ventilation significantly. These all resulted to the accumulation of indoor pollution, led to serious deterioration of indoor air quality. All these reasons resulted the worse ventilation condition of most buildings in our country, and basically can not meet the relevant provisions of China's "indoor air quality standards."

When natural ventilation can not meet our need, we often use mechanical ventilation to improve the indoor thermal environment and air quality. The environment regulating system in this paper make full use of temperature sensor module to realize the intelligent detection of the current temperature, through the temperature test in buildings, we can control the air supply equipment to monitor the indoor environment of buildings intelligently in order to improve indoor air quality, so that comfort the living environment indoors.

The system uses a hierarchical and modular design. The whole system consists data acquisition system and microprocessor control system. MCU AT89S52 is the core of the system, and DS18B20 series of temperature sensors is the measure element. Through the connection of microcontroller and the sensors, we can achieve to measure the temperature of fan motor control system. This system describes the hardware connection of the temperature sensor DS18B20 and the MCU, analyzed the software design and programming each module system. This system can be real-time temperature measurement and the display can be performed via the infrared remote control to set the temperature of air. This system has small size, high sensitivity, low cost ,energy-saving and it is easy to use.

Key Words：Air quality；Microcontroller；Temperature；Sensor