基于超弱光栅传感阵列的钻机违法入侵地铁线路识别定位方法  

A method for identifying and locating illegally invading subway lines by drilling rigs based on ultra-weak Bragg fiber optic grating sensing array

作　　者：李盛[1] 邱阳 南秋明 甘维兵[1] 蒋锦朋 LI Sheng;QIU Yang;NAN Qiuming;GAN Weibing;JIANG Jinpeng(National Engineering Research Center of Fiber Optic Sensing Technology and Networks,Wuhan University of Technology,Wuhan 430070,China;School of Information Engineering,Wuhan University of Technology,Wuhan 430070,China;Xiaomi Inc,Wuhan 430070,China)

机构地区：[1]武汉理工大学光纤传感技术与网络国家工程研究中心,武汉430070 [2]武汉理工大学信息工程学院,武汉430070 [3]小米科技有限责任公司,武汉430070

出　　处：《振动与冲击》2022年第20期202-207,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金(61875155,52108472);湖北省自然科学基金(2020CFB144)。

摘　　要：实时监测和及时报警地铁线路上方钻机的违法入侵对地铁安全管理十分重要。分布式光纤传感技术是一种满足长距离、远程实时监测需求的有效手段。为及时发现和定位地铁线路上方钻机违法入侵,超弱光栅传感阵列被用于采集钻机入侵事件引起的分布式振动响应。基于钻机设备发动机的振动信号特征,提出了可实时识别并定位钻机违法入侵的方法。现场试验结果表明,提出方法具有抵抗地面及地下交通荷载干扰的能力,可以及时、准确地识别和定位模拟的钻机违法入侵事件。Real-time monitoring and timely warning of illegal intrusion of drilling rigs above the subway line are significant for subway safety management.Distributed optical fiber sensing technology is an effective measure to meet the needs of long-distance,remote real-time monitoring.To detect and locate the illegal intrusion of drilling rigs above the subway line in time,the ultra-weak fiber optic Bragg grating sensing array was used to collect the distributed vibration response caused by the drilling rig intrusion event.Based on the vibration signal characteristics of the drilling rig equipment engine,a method that can identify and locate the illegal intrusion of the drilling rig in real time was proposed.Field test results show that the method can resist ground and underground traffic load interference,and can accurately and timely identify and locate simulated drilling rig intrusion events.

关 键 词：违法入侵 地铁隧道 超弱光纤布拉格光栅 分布式振动 钻机 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]