A water supply network pollution source tracking and positioning method based on user complaint information

A technology for tracking and positioning, water supply pipe network, applied in the field of pollution source tracking and positioning, can solve the problem that there is no pollution source positioning technology, and achieve the effect of good pollution source identification ability, fast calculation speed and high calculation accuracy rate

Active Publication Date: 2019-06-14
TONGJI UNIV
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  • Application Information

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Problems solved by technology

[0006] To sum up, although there have been a lot of research on pollution source location, there is no pollution source location technology widely used by my country's water companies.

Method used

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  • A water supply network pollution source tracking and positioning method based on user complaint information
  • A water supply network pollution source tracking and positioning method based on user complaint information
  • A water supply network pollution source tracking and positioning method based on user complaint information

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Experimental program
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Embodiment

[0039] Such as figure 1 , figure 2 , image 3 As shown, a water supply network pollution source tracking and positioning method based on convolutional neural network and user complaint information includes the following steps:

[0040] 1) Use the location information of user complaints to generate a pollution matrix, and screen out a set of candidate nodes for candidate pollution sources;

[0041] 2) Calculate the Chebyshev distance to measure the similarity between the pollutant diffusion patterns of each candidate node, and divide the candidate nodes;

[0042] 3) Increase the lag time of random complaints on the basis of various pollutant diffusion modes, and construct user complaint samples;

[0043]4) Divide the above samples into training set, verification set and test set to train, verify and test the convolutional neural network respectively to evaluate the effectiveness of the model and use it for the location of pollution sources of real pollution events.

[0044...

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Abstract

The invention relates to a water supply pipe network pollution source tracking and positioning method based on user complaint information. The method comprises the following steps of S1, generating apollution matrix by using position information complained by a user; S2, judging the similarity among the candidate nodes and dividing the similarity; S3, increasing random complaint lag time and constructing a user complaint sample; And S4, carrying out training verification test on the convolutional neural network by using the complaint sample of the user, and applying the convolutional neural network to actual pollution source tracking and positioning. Compared with the prior art, according to the real-time user complaint information after the pollution accident happens, the user complaintmode recognition is adopted for pollution source positioning, the good pollution source recognition capability is achieved for water source pollution and non-water-source pollution, and certain robustness is achieved for uncertainty of the user complaint lag time. In the cities with incomplete pipe network water quality on-line monitoring equipment, the system has the advantages that the pollutionsource position can be quickly positioned, and the emergency response capability of cities to pipe network water quality accidents is enhanced.

Description

technical field [0001] The invention relates to a method for tracking and locating pollution sources, in particular to a method for tracking and locating pollution sources in water supply pipe networks based on user complaint information. Background technique [0002] The urban water supply network is the main way for residents to obtain drinking water. The safety of the water supply system directly affects the safety of residents' water use, and is also an important factor in ensuring social stability and economic development. The safe water supply of the water supply network refers to meeting the requirements of users in terms of water quality, water quantity and water pressure at the same time as possible on the premise that the factory water quality is qualified and there is sufficient water volume and pressure at the lowest possible cost. The water quality of the factory water can generally meet the national water quality standard after water treatment. There are often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06N3/04
CPCG01N33/18G06N3/08G06N3/045Y02A20/152F17D5/00G06N3/04G06N3/084G06Q50/06
Inventor 信昆仑孙炼颜合想陶涛李树平王嘉莹
Owner TONGJI UNIV
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