摘要我国是能源消耗大国，随着工业的不断发展，煤炭等化石燃料的消耗在我国的能源消耗中占有较大比重，因此煤炭燃烧产生的烟道气体的监测与控制相当重要。通过对烟道气体检测与控制能有效地提高煤炭燃烧率，减轻环境污染问题。46098
本课题以C8051F005单片机为核心，结合C语言编程，设计了烟道气体测控系统。该系统通过红外气体成分分析仪对烟道气体进行实时分析，确定烟道气体成分，再经升温、冷凝等温度控制输出控制信号，从而控制相关阀门，改善煤炭燃烧效率，降低污染气体的排放。系统采用C语言编程，同时输出信号处理后通过LCD液晶显示屏显示相关信息，具有良好的人机交互界面，同时能够准确直观的展示煤炭燃烧情况以及烟道气体的主要成分比。
本文主要介绍了该烟道气体测控系统的设计思路，硬件选用与构成，程序编写逻辑，以及系统在设计与调试过程中遇到问题后的解决方法。
毕业论文关键词: 烟道气体；C8051F005；C语言编程；LCD显示；
ABSTRACT
China is a big country in energy consumption, along with the continuous development of industry, the consumption of fossil fuels such as coal in China's energy consumption occupies a larger proportion, so coal combustion flue gas monitoring and control is very important. Through the detection and control of flue gas can effectively improve the combustion rate of coal, reducing environmental pollution problems.
This topic with C8051F005 as the core, combined with C language programming, the flue gas control system is designed. The system by means of infrared gas analyzer component of flue gas for real-time analysis, determine the flue gas composition, again by heating, condensation temperature control output control signal to control valves, improve combustion efficiency of coal, reducing emissions of polluting gases. System uses C language programming, while the output signal processing through the LCD display relevant information, has a good man-machine interface, at the same time accurate intuitive shown coal combustion and flue gas is the main component ratio. 
This paper mainly introduces the design of the flue gas measurement and control system, including hardware selection, programming logic, as well as the solution of the problem in the design and debugging process.
Keywords: flue gas; C8051F005; C language programming; LCD display;
目  录
第一章  绪论    1
1.1设计的意义    1
1.2设计的内容    1
1.3发展背景    1
第二章  总体方案设计    3
2.1设计方案    3
2.2工作原理    3
2.2.1主要参数    3
2.2.2控制对象    4
2.2.3工作原理    4
第三章  系统硬件设计    5
3.1硬件选用    5
3.1.1 C8051F005芯片    5
3.1.2红外气体分析仪    6
3.1.3液晶屏（320*240）    7
3.1.4 继电器    7
3.1.5开发板电路介绍    7
3.2 主电路设计    8
3.2.1设计思路    8
3.2.2温度控制    8
3.2.3气体百分比测控    9
3.2.4总体电路原理图    10
3.2.4.1通信接口电路（RS232）    10
3.2.4.2 LCD电路设计    12
3.2.4.3继电器电路    12
3.2.4.4单片机电源电路设计    13
3.2.4.5单片机晶振电路和复位电路设计    14
结束语    16
致谢    17
参考文献    18 C8051F005单片机烟道气体测控系统硬件部分设计+电路图:http://www.751com.cn/zidonghua/lunwen_47755.html