Method for identifying leaks in a water supply network based on acoustic signals

Abstract

The application discloses a method for identifying water supply pipe network leakage based on sound signals and relates to the technical field of water supply pipe network detection. The method comprises the following steps: collecting water flow rate data and leakage sound signals at a water supply pipe network, and extracting water flow rate features and leakage sound features after pre-processing the water flow rate data and the leakage sound signals; fusing the water flow rate features and the leakage sound features to obtain a comprehensive feature vector, constructing a leakage detection model based on the feature vector and a parameter combination, setting a leakage threshold according to an output result; inputting water flow rate and sound signals actually generated by the water supply pipe network into the leakage detection model after processing and feature extraction, obtaining a leakage detection result, and judging a leakage probability in combination with the leakage threshold; collecting vibration signals at the water supply pipe, analyzing vibration signal change features, and determining a water supply pipe network leakage position and a leakage hole diameter according to the change features. The application has remarkable benefits in improving detection accuracy and management level.