Research on OPGW optical cable failure positioning based on distributed sensing technology

As the main physical transmission carrier of the power communication network, the power communication optical cable carries various power grid management and production business. If the optical cable fails, it will affect the production and enterprise operation of the power grid. Therefore, the rapid and accurate positioning of OPGW optical cables is of great significance for the security and stability operation of the power communication network. At this stage, OPGW optical cable failure positioning is usually a signal of the distance and attenuation of the OTDR detection failure point and attenuation in the optical time domain reflex. In this article, due to the working principle of distributed sensors, using the comparison core of the optical cable failure and the frequency shift characteristics on the normal core of the norms, the accurate positioning of the optical cable failure is completed, and the accuracy of the optical cable failure positioning accuracy has been reduced from a kilometer level to to the karma level to Rice level.