Water supply pipe network leakage monitoring and early warning method based on time sequence analysis

Abstract

The invention discloses a water supply pipe network leakage monitoring and early warning method based on time sequence analysis. According to the method, relevance among data coming from pressure sensors distributed in different spaces and received at different times is analyzed in real time, and leakage warning is conducted after monitoring indexes exceed threshold values. The water supply pipe network leakage monitoring and early warning method includes the following steps that firstly, a leakage pressure residual matrix and real-time pressure residual vectors are established; secondly, a space-time relevance matrix is established; and thirdly, leakage monitoring and early warning are conducted. By means of the method, under the given scanning time window length (STWL), influences of model uncertainty and measurement uncertainty can be reduced, and therefore the real-time leakage recognition rate is increased, the false alarm rate (misinformation rate) is decreased, and the water supply pipe network leakage monitoring and early warning method has important significance in improving the comprehensive performance of a leakage monitoring system.

Description

technical field [0001] The invention belongs to the category of urban water supply pipe networks, and in particular relates to a water supply pipe network leakage monitoring and early warning method based on time series analysis. Background technique [0002] The development of a city is inseparable from the safety and reliability of the water supply network system. With the development of the city, the urban water supply network continues to expand, resulting in the entire water supply network becoming more complex, and the operating pressure of the network system is also increasing. When managing a huge and complex water supply network, if there is no certain scientific management, a large number of leakages will inevitably occur in the actual operation of the network, which will increase the burden on water supply companies. The development of the city must first stabilize the city's water supply system. Therefore, urban leakage management is the primary task. [0003]...

AI Technical Summary

Problems solved by technology

When managing a huge and complex water supply network, if there is no certain scientific management, a large number of leakages will inevitably occur in the actual operation of the network, which will increase the burden on the water supply enterprise

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