Optical Cable Monitoring For Railway Communication Network And Resource Management System

In the era of rapid development of information technology,optical fiber communication technology plays a major role and can become the main transmission medium in the railway communication network,mainly based on its high transmission speed and large transmission capacity.The continuous,reliable and efficient operation of optical fiber plays an important role in the railway communication network business.At present,the most important issue for the railway communication related departments to solve the problem is how to strengthen the management of optical fiber resources in the railway communication network and improve its maintenance efficiency.In view of the current situation of optical cable resources in railway communication network and the requirements of railway communication network for optical cable resource management,through the secondary development,the application of optical cable monitoring and resource management system to A railway station communication network has been realized.Firstly,in order to realize the visual management and fault location of fiber resources in the railway communication network through GIS technology,this paper uses Google Maps API technology to fragment the map and use the offline map to load the cable resources in the railway communication network.The optical cable resource line is uniformly coded according to the requirements,which is specifically divided into the management of the cable section facility resource points in the railway communication network,the management of the routing segments between the resource points,and the management of the optical cable section.At the same time,the fault location algorithm based on reserved length is designed.Combined with OTDR technology,the fault point can be accurately displayed on Google Map when the cable is faulty.The software of this design is carried out in the electric station of station B of Railway Bureau A.The pilot operation,through data analysis and sorting,meets the technical requirements of the railway fiber monitoring system.Secondly,in the face of the needs of server operation and maintenance in the railway communication network,this paper designs and implements the virtualized environment of the optical cable monitoring server.The services and databases provided to the cable monitoring system software are run separately on different virtual servers.The failover cluster is deployed in Windows Server 2016,and the services required for cable monitoring are deployed on the nodes provided by the cluster.Or when the operation fails improperly,the cable monitoring system can be free from the influence of these factors,quickly realize the failover on the deployed node,does not affect the efficient operation of the monitoring service,and achieves the effect of decentralization of the service.Finally,the Ovirt-based optical cable monitoring and resource management virtualization platform was tested,and the hosts of each monitoring station were managed by Web access,and the hardware resources were rationally utilized to realize the memory and CPU of the software server running the optical cable monitoring system.The dynamic allocation of resources such as storage,the virtualization platform Ovirt distributes the distribution of the server through the management engine,can view the operation of the optical cable monitoring server,reconfigure the computing node,and view the storage and network utilization of the server.When the computing node of the cable monitoring system fails,the cable monitoring system can operate normally.Through this improvement,the traditional optical cable monitoring system can be more in line with the railway field application requirements,and provides a reference for improving the safety of the railway communication network.