结合小波去噪与GIS地图的光缆故障定位  

Fault location technology of optical cable based on a combination of wavelet de-noising and GIS maps

作　　者：刘钰[1] 郝海泉 谭真[1] 李伟[2] 熊兰[2] 

机构地区：[1]国网重庆市电力公司市区供电分公司,重庆400015 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030

出　　处：《光通信技术》2014年第10期60-62,共3页Optical Communication Technology

摘　　要：将OTDR测试曲线通过bior3.5小波变换后的第三层高频信息进行阈值去噪,判断OTDR测试曲线的突变点,以准确获取故障点与检测点的距离。建立变电站光缆GIS地图系统,引入线性参考系统实现光缆OTDR检测与GIS技术的结合,从而将OTDR测试的线性距离转换为空间可视化位置,实现快速、准确的故障定位。The paper threshold-denoising the third layer high frequency information of the OTDR test curve which transformed by bior3.5 wavelet, locate the saltation point in order to obtain the accurate distance be- tween the fault point and the detection point in an OTDR test. The paper establish the optical cable system for GIS substations, the combination of OTDR tests for optical cables and the adoption of GIS technology is real- ized through introduce the linear reference system,which can transferred the linear distance into a spacial-vi- sualized position of OTDR tests, through this operation, rapid and precise default locations in OTDR tests can be achieved.

关 键 词：OTDR 小波变换 GIS 线性参考 故障定位 

分 类 号：TM734[电气工程—电力系统及自动化]