A method for detecting faults in sewer pipes

Abstract

The invention discloses a detecting method for sewer pipeline failures. The detecting method for the sewer pipeline failures comprises the following steps that a detecting device for the sewer pipeline failures is installed; acoustic response signals of a known pipeline failure-free section / large blocking pipeline / small blocking pipeline / repeated blocking pipeline / leading pipeline are obtained; signal framing is conducted; an energy entropy index, a sample entropy index and a fractal box dimension index of all signal frames are calculated; distinction degree indexes of a energy entropy characteristic set, a sample entropy characteristic set and a fractal box dimension characteristic set are calculated; the new energy entropy characteristic set with the distinction degree index being less than 0.2 is removed, a new energy entropy characteristic set, a new sample entropy characteristic set and a new fractal box dimension characteristic set are obtained, and new characteristic sets are recombined; a random forest classifier is trained with the adoption of recombined characteristic set, and a failure identification model is obtained. According to the detecting method for the sewer pipeline failures, accuracy and reliability of the detecting result are improved.

Description

technical field [0001] The invention relates to a sewer pipeline fault detection method, which belongs to the field of pipeline fault detection. Background technique [0002] The level of urbanization in my country is constantly improving. With the development of urban economy, the length of sewer pipes shows a trend of accelerated growth every year. However, due to defects in the original design or long-term use, the failure rate of sewer pipes is also very high. Among them, the blockage of pipelines is a hidden danger that threatens the safe drainage of cities. If pipeline failures cannot be detected and eliminated in time, the normal operation of urban water supply and drainage will be affected. Therefore, an efficient and accurate sewer pipe blockage detection method is very necessary for pipeline fault detection. Contents of the invention [0003] In order to solve the problem of sewer pipe blockage fault detection, the invention provides a sewer pipe fault detection...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of sewer pipe blockage fault detection, the invention provides a sewer pipe fault detection method

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