计量学报2026，Vol.47Issue(4)：492-501,10.DOI:10.3969/j.issn.1000-1158.2026.04.03
基于多级策略的供水管道泄漏定位方法
A Water Supply Pipeline Leak Localization Method Based on a Multi-Stage Strategy
摘要
Abstract
A multilevel method for water supply pipeline leak localization is proposed,integrating leak detection and precise localization.To improve robustness under complex noise conditions,a two-stage adaptive denoising framework based on time-varying filter empirical mode decomposition(TVFEMD)is developed.In the detection stage,dynamic intrinsic principal component analysis is used to model normal-condition signals,from which compressed time-and frequency-domain features are extracted to construct dynamic and static fault indicators.In the localization stage,leak signals are decomposed into intrinsic mode functions(IMFs)using TVFEMD,and a two-stage IMF selection strategy combining cross-correlation analysis and peak prominence ratio criteria is applied to suppress stationary and random noise.Leak positions are determined using the time difference of arrival(TDOA)method.Experiments demonstrate high robustness and accuracy in noisy environments,achieving a precision rate of 98.5%for two-leak scenarios and reducing the average localization error by 20.3%compared with raw signals.关键词
几何量计量/供水管道/泄漏检测/动态内在主元分析/自适应去噪/时变滤波经验模态分解Key words
geometrial metrology/water supply pipeline/leak detection/dynamic-inner principal component analysis/adaptive denoising/TVFEMD分类
通用工业技术引用本文复制引用
苑朝,段佳鹏,张学伟,张世松,李腾霖,宋振寰,姚万业,牛杭..基于多级策略的供水管道泄漏定位方法[J].计量学报,2026,47(4):492-501,10.基金项目
国家自然科学基金(U21A20486) （U21A20486）
河北省高等学校科学技术研究项目(QN2024071) （QN2024071）
中央高校基本科研业务费专项基金(2025MS149) （2025MS149）
