水力发电厂SDH光纤通信链路状态监测系统设计  

Design of SDH fiber optic communication link status monitoring system for hydroelectric power plants

作　　者：徐牧 XU Mu(PowerChina Chengdu Engineering Corporation Limited,Chengdu 610072,China)

机构地区：[1]中国电建集团成都勘测设计研究院有限公司,四川成都610072

出　　处：《电子设计工程》2025年第4期53-56,61,共5页Electronic Design Engineering

基　　金：四川省科技项目(2019JFG0165)。

摘　　要：传统检测系统容易受电磁的影响,导致在水力发电厂光纤通信链路通信数据传输质量和传输的稳定性较低。因此,该文根据实际运行中水力发电厂光纤通信链路的复杂性,针对随机并发链路故障场景,设计了SDH光纤通信链路状态监测系统。系统采用WDM-3-2 DTS波分复用器和同步数字交叉连接设备SDXC来提高监测范围和数据传输质量。此外,使用华为OptiX OSN系列光纤接口板转换信号,并实行时域窗口下的数据重构方法以增强抗干扰性能。系统通过创新算法实现自动切换和链路状态监测。由系统测试结果可知,该系统监测故障点光功率为0 dBm,与实际情况一致,且监测数据仅与实际数据的误差最大为0.5 dBm。Due to the susceptibility of traditional detection systems to electromagnetic interference,the quality and stability of data transmission in fiber optic communication links in hydroelectric power plants are relatively low.Therefore,based on the complexity of fiber optic communication links in actual operation of hydroelectric power plants,this article designs an SDH fiber optic communication link status monitoring system for random concurrent link failure scenarios.The system adopts WDM-3-2 DTS wavelength division multiplexer and synchronous digital cross connect device SDXC to improve monitoring range and data transmission quality.In addition,Huawei OptiX OSN series fiber optic interface boards are used to convert signals and data reconstruction methods are implemented under timedomain windows to enhance anti-interference performance.The system achieves automatic switching and link status monitoring through innovative algorithms.According to the system test results,it can be seen that the monitoring of the fault point with an optical power of 0 dBm is consistent with the actual situation,and the monitoring data only has a maximum error of 0.5 dBm from the actual data.

关 键 词：SDH 光纤通信 链路状态监测 SDXC 2M信号自动切换路由 

分 类 号：TN929.5[电子电信—通信与信息系统]