基于光谱技术多气体检测系统的设计

发布时间：2018-01-21 04:14

本文关键词： 多气体检测系统设计实时监测 QT 无线传输　出处：《传感技术学报》2017年04期 　论文类型：期刊论文

【摘要】：为了实时检测多种气体的浓度,以红外光谱吸收法和电化学检测为测量原理,设计了以STM32F103为主控芯片的多气体浓度检测系统,对该系统所设计的方案进行介绍。检测系统由上位机和下位机两部分组成。下位机部分包括硬件和软件设计,以同时兼顾性能和低功耗的设计理念实现了多气体浓度实时检测及显示、超过报警阈值进行声光报警等基本功能。下位机可以通过无线传输方式与上位机进行通讯。上位机基于QT平台编写,可以实时显示气体浓度曲线,便于用户在远端进行安全监控。在对系统性能测试后,结果表明:设计的系统检测精度可以达到±3%FS,具有误差小、易操作、携带方便、工作稳定等特点,能够更好地保障工作人员的人身安全,同时远程监控能力也使检测系统具有良好的实用价值。
[Abstract]:In order to detect the concentration of many kinds of gases in real time, a multi-gas concentration detection system with STM32F103 as the main control chip is designed based on the principle of infrared spectrum absorption and electrochemical detection. The design of the system is introduced. The detection system is composed of upper computer and lower computer. The part of lower computer includes hardware and software design. The multi-gas concentration real-time detection and display is realized with the design idea of both performance and low power consumption. The lower computer can communicate with the host computer by wireless transmission. The upper computer can display the gas concentration curve in real time based on QT platform. After testing the system performance, the results show that the precision of the designed system can reach 卤3FSs, the error is small, easy to operate, easy to carry. The characteristics of stable work can better protect the personal safety of the staff, and the ability of remote monitoring also makes the detection system have good practical value.
【作者单位】：南京航空航天大学自动化学院;烟台富润实业有限公司;
【基金】：国家安监局关键技术项目(SD0143-2014AQ) 江苏省研究生培养创新工程-中央高校基本科研业务专项资金项目(SJZZ15_0039) 江苏省重点研发(社会发展)项目(BE2015725) 国家质量监督检验检疫总局公益性行业科研专项(2015424068)
【分类号】：TP274
【正文快照】： 矿井下各种有毒气体和易燃气体作为煤矿开采的伴生物,特别是CO、CH4、CO2等气体。矿井下不具备良好的通风条件[1-2],气体含量一旦增多,容易使人出现中毒现象并引起矿井爆炸事故,会对现场施工人员生命安全造成巨大的威胁。为此,国家煤矿安全监察局制定了《煤矿安全规程》,规定

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