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A Method for Layout of Monitoring Points in Water Supply Network Based on System Observability

A technology for the layout of monitoring points and water supply pipe network, which is applied in the direction of water supply devices, water supply main pipelines, water supply pipeline systems, etc., can solve the problems of poor versatility and achieve a more universal effect

Active Publication Date: 2021-02-05
江苏凯拓测控技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the monitoring point layout plan obtained by the above method is oriented to a specific target, the versatility is poor

Method used

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  • A Method for Layout of Monitoring Points in Water Supply Network Based on System Observability
  • A Method for Layout of Monitoring Points in Water Supply Network Based on System Observability
  • A Method for Layout of Monitoring Points in Water Supply Network Based on System Observability

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Embodiment Construction

[0059] In order to make the technical innovations achieved by the present invention easy to understand, the implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. Such as figure 1 As shown, the specific steps of this embodiment are as follows:

[0060] Step 1 Determination of the number of pressure monitoring points

[0061] (1) System VARX modeling

[0062] a variable selection

[0063] The exogenous variable used in VARX modeling is the inlet pressure of each water source, the endogenous variable is the historical pressure data of each node, and the output is the predicted node pressure data at the next sampling time point. Specifically, the data is divided into a training data set (including 25 days of data) and a test data set (including 5 days of data). For the total data of 30 days, it is obtained in the form of sampling simulation. The specific implementation steps are: sequenti...

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Abstract

The invention discloses a method for arranging monitoring points of a water supply pipe network based on system observability. The method firstly determines the number of pressure monitoring points; secondly selects the location of the pressure monitoring points; Also around the observability of the system, specifically, a method based on sensitivity analysis is adopted; the optimization process is aimed at improving the integrity of system operation status monitoring, and solves the laying quantity and position of flow monitoring points; the water supply network monitoring in the present invention The layout of the points takes into account the two types of hydraulic signals of pressure and flow, and is optimized based on the basic principle of system observability, which is more versatile than the general layout method.

Description

technical field [0001] The invention belongs to the field of urban water supply and relates to a method for arranging monitoring points of a water supply pipe network based on system observability. Background technique [0002] The layout of monitoring points is the prerequisite for accurate acquisition and comprehensive evaluation of the status information of the water supply network system. Throughout the domestic and foreign studies on the optimal arrangement of monitoring points in the water supply network system, they can often be divided into two categories: the purpose is to improve the accuracy of the hydraulic model of the pipe network, and the purpose is to improve the ability of anomaly detection. Specifically, the research is mostly carried out from the perspectives of parameter sensitivity, pipe network and water coverage, and relevant optimization indicators are selected according to actual application requirements, and finally the final monitoring point layout...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03B7/07G06F30/13G06F30/23
Inventor 徐哲孟煜飞何必仕陈晖
Owner 江苏凯拓测控技术有限公司