首页|分布式光纤声波传感技术在煤矿带式输送机状态监测中的应用

分布式光纤声波传感技术在煤矿带式输送机状态监测中的应用

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带式输送机作为煤矿运输系统的重要组成部分,其运行状态的实时监测对保障煤矿作业的安全性至关重要.传统的状态监测技术在全面性和有效性方面存在局限,难以满足复杂工况下的监测需求.分布式声波光纤传感(DAS)技术凭借其监测长距离和高空间分辨能力的优势,为带式输送机的状态监测提供了新的解决方案.通过在带式输送机系统上布设传感光缆,可以准确捕捉沿线所有位置处的异常振动信号,通过信号分析和处理获得带式输送机各位置处的故障状态信息.介绍了 DAS技术的基本原理、系统结构,以及常见的信号处理和特征提取方法.同时,探讨了机器学习在带式输送机故障诊断中的应用,强调了其在基于DAS的带式输送机状态监测中的光明前景,最后,对DAS技术在煤矿监测中的未来发展方向进行了展望.
Application of Distributed Fiber Optic Acoustic Sensing Technology in Monitoring the Status of Coal Mine Belt Conveyors
As an important component of the coal mine transportation system,real-time monitoring of the operating status of belt conveyors is crucial for ensuring the safety of coal mine operations.Traditional state monitoring technology has limitations in comprehensiveness and efficiency,making it difficult to meet the monitoring needs under complex working conditions.Distributed Acoustic Fiber Sensing(DAS)technology,with its advantages of long-distance monitoring and high spatial resolution,provides a new solution for the status monitoring of belt conveyors.By installing sensing optical cables on the belt conveyor system,it is possible to accurately capture abnormal vibration signals at all positions along the line,and obtain fault status information at each position of the belt conveyor through signal analysis and processing.The basic principles,system structure,and common signal processing and feature extraction methods of DAS technology were introduced.At the same time,the application of machine learning in belt conveyor fault diagnosis was discussed,emphasizing its bright prospects in DAS based belt conveyor status monitoring.Finally,the future development direction of DAS technology was given an outlook on coal mine monitoring.

distributed fiber optic acoustic wavesbelt conveyorstatus monitoringsignal processingmachine learning

朱胜强、刘聪、庄德玉、刘庆文、吴昊坤

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中煤科工集团上海有限公司,上海 200030

煤炭智能开采与岩层控制全国重点实验室,上海 200030

上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海 200240

分布式光纤声波 带式输送机 状态监测 信号处理 机器学习

2024

煤矿机电
煤炭科学研究总院上海分院

煤矿机电

影响因子:0.268
ISSN:1001-0874
年,卷(期):2024.45(6)