基于比例风险模型的光缆可用性评估

Usability evaluation of the optical fiber cable based on weibull proportional hazard model

针对光缆性能衰退时影响光缆可用性的关键因素,在光缆线路运行监测数据的基础上,提出运用威布尔比例风险模型,以光缆最大可用度为优化目标,计算得出光缆线路劣化阈值,根据阈值进行光缆可用性评估和维修决策的制定。以某光缆中继段进行实例分析,验证评估方法的准确性,该方法在全面掌握光缆运行状况和提高光缆可用性方面具有一定的应用价值。

Aiming to the key factors that affect the usability of the optical fiber cable when the performance of the optical fiber cable degrades. The Weibull Proportional Hazard Model is proposed based on the operational monitoring data of the optical fiber cable, which can calculate the fault threshold of the optical fiber cable by using the maximum usability of the optical fiber cable as the optimization objective, and make the usability e- valuation and the maintenance decisions of the optical fiber cable according to the fault threshold. A certain hop of the optical fiber cable is used as an example to verify the accuracy of the evaluation method proposed in the paper. The result shows that the proposed method in the paper has some application value in fully mas- tering the operational situation of the optical fiber cable and increasing the usability of the optical fiber cable.