A Passive Detection Method of Gas Cloud Concentration Distributions for Leaking Alkane Gas

IF 7 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Instrumentation and Measurement Pub Date : 2026-02-03 DOI:10.1109/TIM.2026.3660409

Jiani Zhou;Chen Chen;Yong Zhang;Jun Lin;Heng Piao;Feng Sun

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引用次数: 0

Abstract

Methane is the primary component of natural gas. The accurate detection of methane leakage points and concentration is crucial to ensuring safety and environmental protection. However, traditional active gas concentration detection methods are susceptible to interference from dynamic backgrounds, which makes concentration detection challenging. This article presents a passive method for detecting gas cloud concentration distributions based on a self-developed passive infrared imaging system operating in the 3.2–

$3.4~\mu $

m wavelength band. A methane detection model considering multiple influencing factors was established. During the model development, an adaptive factor was incorporated into the prediction and tracking framework of the Kalman filter to mitigate the effect of time-varying light sources on gas concentration detection performance. Experimental results demonstrate that the detection limit is 0.79%, and the relative error is less than 1.00%. The system enables real-time methane concentration detection and validates its potential for natural gas leakage detection through its industrial application in complex environments. The field test videos and the core code of the proposed method have been made publicly available at: https://github.com/1996Eric/AT-EKF

查看原文本刊更多论文

泄漏烷烃气气云浓度分布的被动检测方法

甲烷是天然气的主要成分。甲烷泄漏点和泄漏浓度的准确检测对于确保安全和环境保护至关重要。然而，传统的主动气体浓度检测方法容易受到动态背景的干扰，这给浓度检测带来了挑战。本文介绍了一种基于自主研制的被动红外成像系统的气体云浓度分布被动检测方法，该系统工作在3.2 ~ 3.4~\mu $ m波段。建立了考虑多种影响因素的甲烷探测模型。在模型开发过程中，在卡尔曼滤波的预测和跟踪框架中加入了自适应因子，以减轻时变光源对气体浓度检测性能的影响。实验结果表明，该方法的检出限为0.79%，相对误差小于1.00%。该系统能够实时检测甲烷浓度，并通过其在复杂环境中的工业应用验证了其天然气泄漏检测的潜力。该方法的现场测试视频和核心代码已在https://github.com/1996Eric/AT-EKF上公开发布

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来源期刊

IEEE Transactions on Instrumentation and Measurement 工程技术-工程：电子与电气

CiteScore

9.00

自引率

23.20%

发文量

1294

审稿时长

3.9 months

期刊介绍： Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.