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阐述OTDR技术在光缆维护工作中的原理和其存在的弊端,进而提出将GIS系统与OTDR技术相结合的方法进行光缆维护的必要性,同时对如何使用GIS技术对光缆故障点进行判断进行分析。
The principle of OTDR in optical fiber cable maintenance and its disadvantages are discussed. Then the necessity of optical fiber cable maintenance is put forward by combining GIS with OTDR technology. At the same time, it is analyzed how to use GIS technology to judge the failure point of optical fiber cable.