基于AT89C52单片机的室内有害气体监控系统  

Design of the Indoor Noxious Gas Detector Based on AT89C52

作　　者：罗亚萍[1] 王忠庆[1] 岳晓东[1] 

机构地区：[1]中北大学信息与通信工程学院,山西太原030051

出　　处：《山西电子技术》2011年第3期29-30,共2页Shanxi Electronic Technology

摘　　要：介绍了基于AT89C52单片机的室内有害气体监控系统的软、硬件结构设计。着重说明了中红外发光二极管作为红外光源的优势;详细介绍了红外气体传感器的工作原理及其在系统数据采集中的应用;AD7896在模/数转换中的运用;最后给出了系统软件设计的主程序流程图。该系统对提高有害气体的检测效率、降低仪器成本,改善室内空气环境具有重要的现实意义。With the development of economic,the demand for improving living environment and increasing living quality is more important than before in people＇s mind.Hence,the development of an effective instrument and corresponding set of method to detect the proportion of noxious air is urgent and indispensable.Traditional infrared air analyzing device has the weak point of high making cost and low flexibility.In this paper it introduces an indoor hazardous gas safety monitor system base on AT89C52 SCM.Much emphasis is put on the reason why it utilizes MIR-LED as the infrared light source;it also points out the working principle of infrared gas sensors,how it works in data collection and the utilization of AD7896 transforming in the mold/number.Finally it puts forward the master routine flow chart of system software design.The system can boost the detection efficiency,lower the cost and improve the indoor air quality.

关 键 词：有害气体 红外光谱 中红外发光二极管 AT89C52单片机 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]