基于DAS技术的地下通信光缆路由寻址

Underground Communication Optical Cable Routing and Addressing Based on DAS Technology

提出一种基于分布式声波传感(DAS)技术的光缆寻址方法,在南京晓庄学院方山校区内开展实验研究,使用MATLAB对采集到的数据进行处理,得到其特征图,后使用OpenCV对该图像进行处理,在获得路由的同时计算出井内预留光缆的长度,路由巡纤结果与规划图一致。研究结果表明,DAS技术可用于通信光缆巡纤,排查光缆的线路和路由,该技术可用于光缆修复和网络扩充前对预留光纤的长度是否足够进行判断,以确定具体的修复和扩充策略,大大减少工程时间。

A fiber optic cable addressing method based on distributed acoustic sensing(DAS)technology is proposed,and the field test is conducted in the Fangshan campus of Nanjing Xiaozhuang University.The collected data is processed using MATLAB to obtain its feature map,and then processed using OpenCV to calculate the length of the reserved fiber optic cable in the well while obtaining the route.The route inspection results are consistent with the planning map.The research results indicate that DAS technology can be used for communication fiber cable inspection,inspection of fiber optic cable lines and routes.This technology can be used to identify whether the length of reserved fiber optic cables is sufficient before fiber optic cable repair and network expansion,in order to determine specific repair and expansion strategies,greatly reducing engineering time.