The invention belongs to the technical field of intelligent water affair and urban disaster prevention, and provides a drainage pipeline risk early warning method,
system and device and a medium, and the method comprises the following steps: dividing risk areas through combining pipeline GIS data and historical faults, and carrying out the differentiated arrangement of temperature and strain sensing optical fibers to form a double-parameter network; synchronously acquiring data by using a demodulator,
processing the data by using a dynamic self-adaptive sliding window of a preset threshold value, and identifying abnormal segments; after multi-source fusion correction, inputting a pre-trained CNN-LSTM model to preliminarily evaluate the
event type and risk; carrying out digital twinning
simulation on consequences of moderate and above risks by using pipelines, and judging fourth-level risks; early warning is pushed according to grades, response is triggered, disposal feedback is collected, and
model parameters and risk thresholds are dynamically adjusted through
incremental learning; according to the invention, accurate capture of micro-anomaly of the drainage pipeline and real-time
quantitative assessment of risk are realized, the life cycle of the
system is prolonged, the operation and maintenance cost is reduced, and intelligent and
safe operation and maintenance of the drainage pipeline are achieved.