The invention discloses an optical cable damage monitoring method,
system and device based on GAT and LSTM algorithms, and a medium, and relates to the technical field of
optical fiber communication monitoring, and the method comprises the steps: collecting an original
signal, carrying out the
noise reduction
processing, carrying out the dynamic boundary segmentation of
time series data after
noise reduction, forming a
time segment sequence, calculating the similarity between time segments through an elastic alignment mode, and carrying out the detection of the optical cable damage. The method comprises the following steps: constructing a graph structure, performing spatial
feature extraction on the graph structure, dynamically distributing importance weights among nodes, generating feature vectors, inputting the feature vectors into a
time sequence modeling unit, capturing time dependence, outputting final
time sequence features, and performing disaster type classification and position positioning based on the final
time sequence features. According to the method, the spatial-temporal characteristics are modeled cooperatively through the GAT-LSTM mixed architecture, the OTDR data are analyzed by using the graph structure, and the decoupling capability and the detection sensitivity of the optical cable composite disaster spatial-temporal propagation path are improved.