光散射式早期烟雾浓度测量及报警系统的研究.doc

光散射式早期烟雾浓度测量及报警系统的研究
专业名称:光学
申请人姓名:但侨生
导师姓名:黄佐华
摘要
随着科技的进步和经济建设的发展,各种类型的建筑物对火灾自动报警控制
系统提出了更高的要求。特别是目前正在我国逐步兴起的智能建筑中,就更是
如此。据估计近两年火灾自动报警和消防联动控制系统的年需求量约达20多
亿元人民币。相关部门和公司在各类烟雾传感器组成的探测器的研发上都投入
了很大的物力和财力。
本文探讨并比较了各种烟雾浓度测量仪和烟雾报警器的优缺点,依据光散射原理,设计和完成了一套光散射式早期烟雾浓度测量及报警系统。该系统以高功率激光二极管DH650-40-3(5)为发射光源,阵列型硅光电池作为接收器;以芯片OP07设计放大电路,模数转换芯片TLC2543和主控芯片STC89C52为微控制器件,工业字符型液晶LCD1602为输出数值显示屏。确定了系统总体设计方案和具体电路结构。具体所做的工作如下:
,分析了各种烟雾报警器的原理、性能指标和优缺点。
,对系统的元件、光路、气室、放大电路和单片机电路等部分进行了分析与设计。
,包括系统浓度测量的稳定性、线性和定标等工作内容。
:%,分辨率为。
关键字:烟雾探测,浓度测量,功率补偿,浓度定标,线性,稳定性
INVESTIGATIVE OF LIGHT SCATTERING EARLY SMOKE CONCENTRATION MEASUREMENT AND ALARM SYSTEM
Major: Optics
Name: Qiaosheng Dan
Supervisor: Zuohua Huang
ABSTRACT
With the development of technology and economic,People care more about automatic fire-alarm system for various types of buildings currently,especially when intelligent building is gradual increase in China. It is estimated that it costs about 20 billion RMB for the automatic fire alarm and fire control linkage system in the Past two years. Relevant departments panies have invested a lot in research and developing on smoke detector consisting of types of sensor.
This article discusses pares advantages and disadvantages of various smoke concentration meter and smoke alarm, based on light scattering principle, design pletion of a series of light scattering type early smoke concentration measurement and warning systems.
The system uses the high power laser diode (DH650-40-3 (5)) for the emission source, the array-type silicon photovoltaic cells as a receiver and design amplifier with OP07, TLC2543 and STC89C52 for the micro-control devices, LCD1602 display the output. Then we have made the system design programs and designed specific circuit structure. Specifically the work done as follows:
1. Summary of the development of domestic and foreign smoke concentration measurement and a