基于气体扩散模型的气体源定位系统  

Gas source location system based on gas diffusion model

作　　者：潘新平 郑艳华[1] 林荣列 王婉芝 陆奕海 黄清辉 陈锐贤 Pan Xinping Zheng Yanhua Lin Ronglie Wang Wanzhi Lu Yihai Huang Qinghui Chen Ruixian(School of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China)

机构地区：[1]广州大学物理与电子工程学院,广州510006

出　　处：《国外电子测量技术》2017年第9期72-76,共5页Foreign Electronic Measurement Technology

基　　金：国家自然科学基金(60971093);大学生创新项目(201511078063);广东省高等教育教学改革项目;广东省攀登计划项目(pdjh2017b0395)资助

摘　　要：为了快速准确地确定气体泄漏源的位置,利用无风连续泄漏点源浓度的扩散模型,提出了基于加权质心算法的气体源定位法。采用气敏传感器阵列对目标区域的气体浓度进行检测,并通过ZigBee无线传感器网络把收集的数据反馈给协调器,协调器把打包好的数据传递给主处理器,处理器依靠测量的结果计算出气体源位置,并可视化显示。在目标区域为4m×4m,以乙醇蒸汽为实验目标气体进行气体源定位实验。结果表明,平均定位结果相对误差不超过6%,验证了该方法的准确性。In order to quickly and accurately determine the position of gas leakage source,the weighted centroid method is proposed.The gas sensors are placed near the gas leakage detection area and the data collected from wireless sensor network nodes is sent to the coordinator through ZigBee wireless sensor network.Then,the packaged data coming from the coordinator is passed to the main processor and the location of the gas source is calculated by the main processor based on the weighted centroid method by using the measurement results and the results are displayed.Experiments with ethanol vapor as the target gas are conducted and the relative positioning error is no more than 6%in a area of 4m×4m,and the correction of the gas source position method is illustrated.

关 键 词：气体扩散模型 加权质心算法 STM32处理器 ZIGBEE无线传感器网络 气体源定位 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]