矿用分布式测温主机光纤异常受力信号过滤模型研究  

Research on the filtering model of abnormal force signals in the fiber optic of distributed temperature measurement hosts for mining

作　　者：王博文 WANG Bowen(Ccteg Chongqing Researchinstitute,Chongqing 400039,China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《自动化与仪器仪表》2025年第3期38-41,46,共5页Automation & Instrumentation

摘　　要：光纤测温主机利用光波的拉曼散射原理,对环境的温度进行实时监测。由于矿井下的工作环境极为苛刻,光纤在长距离敷设后容易受到异物(跌落煤块,机械设备)等挤压形变,导致光波的传输出现异常,从而发出无效告警信号。无效告警信号会极大干扰煤矿安全监控系统的可靠性和稳定性,给生产作业带来很大困扰。在深入分析测温主机光波拉曼散射原理的基础上,提出了基于非线性多项式的光纤受力异常信号测温带分段过滤模型。通过实验分析,证明模型能够准备识别光路中的非环境温度影响产生的异常数据,极大提升了光纤测温主机的可靠性和有效性。The fiber optic temperature measurement host utilizes the principle of Raman scattering of light waves to monitor the temperature of the environment in real-time.Due to the extremely harsh working environment in mines,optical fibers are prone to compression deformation caused by foreign objects(falling coal blocks,mechanical equipment) after long-distance laying,leading to abnormal transmission of light waves and issuing invalid alarm signals.Invalid alarm signals can greatly interfere with the reliability and stability of coal mine safety monitoring systems,causing great difficulties to production operations.On the basis of in-depth analysis of the principle of Raman scattering of optical waves in temperature measurement hosts,this article proposes a segmented filtering model for fiber optic abnormal force signal temperature measurement band based on nonlinear polynomials.Through experimental analysis,it has been proven that the model can prepare to identify abnormal data generated by non environmental temperature effects in the optical path,greatly improving the reliability and effectiveness of the fiber optic temperature measurement host.

关 键 词：光纤测温 拉曼散射 欧几里得距离 斯托克斯光 反斯托克斯光 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]