Optical cable monitoring device

Abstract

The invention discloses an optical cable monitoring apparatus, belonging to professional field of telecommunication network maintenance. The apparatus comprises an OTDR meter, an optical cable monitoring centre server, a large distributed database, a system client end. The OTDR meter is arranged in the centre equipment room of prefectures via connection of the DCN network; optical channel selecting switching is arranged in the meter to respectively monitor optical fibers with different directions; the optical cable monitoring centre server, system client end use working ways of C / S or B / S; the system client end of the prefectures logins the optical cable monitoring centre server of provincial company via the permission; the optical cable monitoring centre server controls the OTDR meters to process test; the test data are uploaded to the optical cable monitoring centre server to process automated analysis and comparison via the DCN network, automatically generating warming and forming sorts of maintenance statements. This invention effectively enhances the optical cable maintenance efficiency and timely finds hidden troubles in the optical cable, in addition the construction cost is low and the position-setting is simple and convenient and easy for maintaining.

Description

technical field [0001] The invention belongs to the professional field of telecommunication network maintenance. Background technique [0002] As a communication optical cable carrying information, it is often damaged due to various reasons. Once the optical cable is blocked, it will cause huge economic losses and adverse social impacts. Therefore, the requirements for the quality of optical cable maintenance are getting higher and higher. At present, most of the maintenance methods adopt manual inspection and regular OTDR to measure the backup fiber. The maintenance effect of the optical cable is not ideal, and it is difficult to find the hidden dangers on the optical cable in a timely manner. When an obstacle occurs, it takes a long time to determine Whether it is a transmission equipment failure or a cable failure, this maintenance method can no longer meet the needs of the ever-expanding maintenance scale of transmission optical cables. The daily maintenance of optical c...

AI Technical Summary

Problems solved by technology

At present, most of the maintenance methods adopt manual inspection and regular OTDR to measure the backup fiber. The maintenance effect of the optical cable is not ideal, and it is difficult to find the hidden dangers on the optical cable in a timely manner. When an obstacle occurs, it takes a long time to determine Whether it is a transmission equipment failure or a cable failure, this maintenance method can no longer meet the needs of the ever-expanding maintenance scale of transmission optical cables. The daily maintenance of optical cables cannot only adopt the passive management method of "remedial work", and it is necessary to prevent the deterioration of optical fibers. Trends and eliminate hidden dangers in time

With the rapid expansion of the basic network of optical cables in the province, the interruption of optical cables has also increased year by year. In order to ensure communication, it is required to invest more maintenance forces, strengthen maintenance methods, and improve maintenance levels. However, the current optical cable maintenance system mainly It is difficult to meet higher-level maintenance requirements through decentralized and passive manual maintenance methods. The following are the outstanding problems faced in practice:

On the other hand, due to the short construction time of China Mobile's optical cable, there is an essential difference in line maintenance from China Telecom, and a large number of agent maintenance methods are used. Due to the consideration of maintenance costs, it is impossible to achieve the same level as China Telecom. , Complete line departments at all levels from the city to the county, but adopt the method of centralized setting of maintenance units. In a city, there are often only 1-2 maintenance centers (stations), and when a line failure occurs, the maintenance center ( Station) rushing to the fault point, it often takes a lot of travel time, which virtually prolongs the fault duration

Secondly, since most of the current computer rooms are unmanned aerial vehicles, when the transmission system of the primary, secondary and remote computer rooms needs to define line faults and equipment failures, there is often a problem of unmanned cooperation in the computer room, resulting in some faults being unable to be accurately judged and maintenance efficiency. Low; Third, with the further deepening of the reform of the centralized maintenance system, the technical force of on-site maintenance personnel is relatively weak, and the proficiency in instrument operation cannot be guaranteed. fourthly, the current maintenance system mainly judges faults through the maintenance agency, and due to the limitations of various factors, the transmission resource management system cannot be fully shared with the maintenance agency, and the fault judgment mainly relies on paper Data search cannot guarantee the time limit and accuracy of fault location, and it is impossible to automatically dispatch faults; fifth, according to statistics, current line faults account for 30-40% of the entire network faults, and the original maintenance system There is no effective judgment basis for the assessment of the route, which leads to great controversy over the results of the route assessment

[0005] Second, it is difficult to effectively maintain the optical cable actively

At present, under our agent maintenance system, manual inspection and regular use of OTDR to measure the backup fiber are mostly used for maintenance. The effect of optical cable maintenance is not ideal, and it is difficult to find hidden dangers on the optical cable in a timely manner.

[0007] Manual inspection can only roughly judge the fault based on the obvious changes in the physical environment on the optical cable route, and cannot detect the damage inside the optical cable in detail. The reasons for the unsatisfactory effect of regularly using OTDR to check the backup fiber are:

[0008] 1. The cost is high, and it takes a lot of labor and material resources (OTDR instruments, vehicles) to be scattered to various locations, so the number of tests is quite limited, and only one or two sampling tests per year are required, making it difficult to find problems in time;

[0009] 2. The operator needs more OTDR experience and understands the actual situation of the optical cable under test;

[0010] 3. There is a lack of reference materials, and it is impossible to compare the deterioration trend of each key event point on the optical cable, and some fault events may be missed;

[0011] 4. Lack of management in maintaining data records and updates;

[0012] 5. It is impossible to analyze the long-term trend of optical cable performance change

[0013] 3. The positioning of optical cable faults is slow and the repair time is long

[0015] 1. It takes a long time to determine whether the SDH equipment is faulty or the cable is faulty;

[0016] 2. There is a lack of effective cooperation between departments. It will take a lot of manpower and time for mobile company personnel to go to the site to cooperate with the maintenance agency; it takes at least 45 minutes from the time when the monitoring personnel discover the fault to the notification of the maintenance agency to arrive at the scene, and to locate the fault. could take an hour;

[0017] 3. Lack of means to quickly and accurately locate the exact location of the fault point

With the further enrichment of centralized construction methods, the comprehensive network management of the transmission network, the transmission resource management system, the line inspection system, and the SMS gateway have gradually become popular. The current optical cable maintenance methods cannot realize the joint application between systems to ensure the entire network Centralized monitoring and centralized maintenance

[0018] 4. How to effectively use and assess maintenance agents when maintenance tasks are heavy and corresponding personnel are lacking

However, in the current situation, when the optical cable fails, the personnel of the mobile company still need to cooperate on site, which does not really reduce the workload of mobile engineers, and there is also a lack of objective and accurate assessment methods for the maintenance quality

Images