Design Of Power Optical Cable Fault Location System Based On GIS

At present,power optical fiber has become the medium of power communication transmission with its own advantages,carrying huge transmission tasks.Once a power optical cable failure occurs,if it cannot be handled in time,it will cause immeasurable losses to enterprises and users.At present,after a line fault occurs,it is usually the operation and maintenance personnel who rush to the communication room and the optical cable line to use an OTDR(optical time domain reflectometer)to test the distance and loss between the measurement point and the fault point.However,the OTDR only measures the distance of the optical cable,not the geographic distance.To accurately locate the fault location requires the staff to conduct line inspections,which requires a lot of time and energy,and is familiar with the staff’s work experience and geographic location.High demands.Therefore,it is imperative to efficiently,quickly and accurately determine the failure point of the optical cable.The work of this paper is as follows for the fault location of power optical cable:Comparing the advantages and disadvantages of classic OTDR curve analysis algorithms such as least squares,Fourier transform,and wavelet analysis,an improved method is proposed: based on SVM multi-class OTDR curve analysis method,the original OTDR curve data is extracted and processed with feature points.Mark,and then train the SVM multi-classifier to complete the incident classification and detection.Using the same data,comparing the classification time and classification accuracy of the above-mentioned three classic algorithms and the SVM multi-classification method,it is verified that the SVM multi-classification has obvious advantages.GIS-based power fiber optic cable fault location.In order to solve the problem of power optical fiber fault location,this article introduces GIS technology.By storing the longitude and latitude of the optical cable line,the distance from the measurement point and other information into the GIS database,the OTDR measured distance is compared with the special point in the database,and the scope of the fault point is continuously reduced.Finally,it is locked between two adjacent special points,and the latitude and longitude of the fault point is obtained and displayed in the GIS map.Design the power optical cable fault location system,realize the management of optical cable resource information,integrate the improved OTDR curve analysis method and the fault location algorithm into the system,send the fault point SMS to the staff’s mobile phone,realize the fast location of the fault point,very well The problem of long time-consuming and low accuracy of fiber optic cable fault location is solved.Applying the system to actual work,the system is feasible,easy to operate,and runs smoothly.Compared with the previous time-consuming,manpower and material resources and the need for experienced staff to locate the fault point,the positioning method of this system can be Determine the point of failure quickly,accurately and efficiently.Tests prove that the positioning error of the system can be controlled within 15 m,and the fault location time is greatly shortened.