| 基于单片机的甲醛监测报警系统 |
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| 引用本文： | 仝庆华.基于单片机的甲醛监测报警系统[J].雁北师范学院学报,2011,27(2). |
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| 作者姓名： | 仝庆华 |
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| 作者单位： | [1]中北大学信息与通信工程学院,山西太原030051 ;[2]山西大同大学物理与电子科学学院,山西大同037009 |
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| 基金项目： | 山西省普通高等学校大学生创新性实验项目 |
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| 摘 要： | 此监测显示报警系统主要由单片微型计算机作为控制核心,通过气体传感器采集信号、信号放大,数模转换,按键控制,并经过LED显示报警电路显示结果。从甲醛气体传感器出来的微电流信号,经过信号放大电路将信号放大,再通过A/D转换器将模拟电流信号转换成数字信号送入单片机80C51内,然后由单片机及时进行处理。如果甲醛浓度超标,单片机便会发出一系列信号去控制相关的报警设备。
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| 关 键 词： | 传感器 单片机80C51 报警电路 |
Formaldehyde Display and Alarm Detector based on SCM |
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| TONG Qing-hua.Formaldehyde Display and Alarm Detector based on SCM[J].Journal of Yanbei Teachers College,2011,27(2). |
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| Authors: | TONG Qing-hua |
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| Institution: | TONG Qing-hua1,2(1.School of Information and Communicatin Engineering,North University of China,Taiyuan Shanxi,030051,2.School of Physics and Electronics Sciene,Shanxi Datong University,Datong Shanxi,037009) |
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| Abstract: | Formaldehyde display and alarm detector include the formaldehyde gas sensor,signal amplification circuit,A/D conversion,SCM 80C51,display circuit,keyboard control,alarm circuit and so on.To begin with,micro-electric current signal from the sensor is enlarged by the signal amplification circuit,in the second place,it is converted the digital signal by A/D conversion,finally,it is ran into 80C51 and is handled by it.If the density of formaldehyde is above standard,the signal chip computer will generate a train of signals to control connected the alarm equipments. |
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| Keywords: | formaldehyde gas sensor SCM 80C51 alarm and display instrument |
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