Abstract: The optical transmission system is the carrier of the power service channel, and the current post-event passive fault repair operation and maintenance mode is not enough to meet the needs of the operation and maintenance work, while the traditional proactive hidden danger prevention mode is mainly manual periodic inspection, in which the optical path performance inspection needs a lot of manpower. In this paper, the abundant northbound interface of the dedicated network management is used to collect data, design the complete optical section object and the abnormal optical path judgment algorithm, develop the automatic inspection tool of the power optical transmission system, automatically output the inspection results, and give an early warning to the abnormal optical path, so as to find hidden dangers in time to avoid the occurrence of faults and improve the level of independent operation and maintenance.

Key words: power optical transmission, automatic inspection, early warning