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Pollution source tracking and positioning information processing method of sudden water supply pipe network pollution accident

A technology of sudden pollution accidents and information processing methods, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., and can solve problems such as great influence on reliability and poor positioning of multiple pollution sources

Inactive Publication Date: 2012-05-23
TONGJI UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This method is relatively simple to calculate, but the reliability of the result is greatly affected by the number of detection points, and it is not effective for the pollution in the middle of the pipe network (non-water source nodes) and the positioning of multiple pollution sources

Method used

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  • Pollution source tracking and positioning information processing method of sudden water supply pipe network pollution accident
  • Pollution source tracking and positioning information processing method of sudden water supply pipe network pollution accident
  • Pollution source tracking and positioning information processing method of sudden water supply pipe network pollution accident

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Effect test

Embodiment 1

[0043] Such as figure 1 , figure 2 As shown, a pollution source tracking and positioning information processing method for sudden pollution accidents in a water supply pipe network includes the following steps:

[0044] 1) The collector A collects the pollutant concentration information monitored by the monitoring point, and sends it to the processor B;

[0045] 2) Processor B calculates the maximum pollutant concentration and the time of occurrence of the maximum pollutant concentration of its relevant upstream nodes through the linear rule model of the node relationship tree, and solves it step by step to obtain the maximum pollutant concentration of all nodes in the pipeline network concentration and the time at which it attains maximum pollutant concentration;

[0046] 3) Processor B judges that the node with the largest pollutant concentration is predicted to be the pollutant injection node.

[0047] The establishment process of the linear rule model of the node relat...

Embodiment 2

[0127] Taking the model diagram of a water supply pipe network as an example, this paper further elaborates the pollution source tracking and positioning algorithm and its programming implementation process. The pipe network model is shown in the attached Figure 9 .

[0128] 1. Generation of training data set

[0129] Simulate pollution injection through EPANET to obtain a training data set, and satisfy the conditions:

[0130] 1) Pollution injection node (i.e. pollution source) can be any node in the pipeline network;

[0131] 2) The duration of pollution injection is one hour;

[0132] 3) The duration of the entire simulation process of pollution is 72 hours;

[0133] 4) The concentration of pollution injection varies randomly between 2.5mg / L and 25mg / L, and the start time of pollution injection can be at any time of the day.

[0134] During a pollution injection simulation process, record the maximum pollution concentration that all nodes can reach and the time to obta...

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Abstract

The invention relates to a pollution source tracking and positioning information processing method of a sudden water supply pipe network pollution accident, which comprises the following steps that: 1) acquisition devices acquire pollutant concentration information monitored by monitoring points and transmit the pollutant concentration information to a processor; 2) the processor works out the maximum pollutant concentration of all nodes in a pipe network and the occurrence time of the maximum pollutant concentration according to the linear rule model of a node relation tree, and by conducting solution step by step, the maximum pollutant concentration of all nodes in the pipe network and the occurrence time of the maximum pollutant concentration can be worked out; and 3) the processor judges a node with the highest pollutant concentration and determines the node to be a pollutant injection node. Compared with the prior art, the method has the advantages that the pollution resource in the water supply pipe network can be rapidly and accurately positioned and the like.

Description

technical field [0001] The invention relates to a method for processing pollution source tracking and positioning information, in particular to a method for processing pollution source tracking and positioning information for sudden pollution accidents in water supply pipe networks. Background technique [0002] The water quality safety of the water supply network is increasingly concerned by the city government, water supply enterprises and even the whole society. When a pollution source enters the water supply system from an entry point, the pollutants will quickly spread throughout the pipe network, posing a huge threat to the health and life safety of residents. At present, the water quality monitoring technology of my country's urban water supply system is relatively backward, and most cities do not yet have the ability to complete online water quality monitoring. However, the threat of sudden pollution accidents in the water supply network always exists. [0003] Mos...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 信昆仑王康乐陶涛刘龙
Owner TONGJI UNIV
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