Method for generating pressure distribution chart of urban water supply pipeline network

Abstract

The invention relates to a method for generating a pressure distribution chart of an urban water supply pipeline network in the technical field of monitoring. The method comprises the following steps of: firstly, collecting the pressure data of nodes of a pressure measurement point, a water plant, a pumping station and the like from the water supply pipeline network by utilizing an SCADA (Supervisory Control And Data Acquisition) system; secondly, preprocessing the collected node data; thirdly, carrying out restrictive cluster analysis on a sample of the collected pressure data; fourthly, zoning the water supply pipeline network according to a clustering result, selecting a representative pressure node from each zone so as to represent the pressure level of the zone in which the representative pressure node is in; and finally, displaying different colors according to the pressure value of each zone and outputting the pressure distribution chart of the water supply pipeline network. The method adopted by the invention is simple and has high efficiency and strong robustness. If the accidents of damage and leakage occur in pipelines, the representative pressure nodes still have the representativeness of the pressure values because the pipelines of the nodes in one class are adjacent and a causal relation exists in the pressure.

Description

technical field [0001] The invention relates to a method in the technical field of monitoring, in particular to a method for generating a pressure distribution map of an urban water supply pipe network. Background technique [0002] With the improvement of industrial production capacity, the scale of urban water supply system is constantly expanding, and the complexity of water supply network is also increasing. But what follow is the increasing variety of pipe burst accidents, and many users have the phenomenon of insufficient water pressure. Through a pressure distribution map of the water supply pipe network, we can monitor and understand the pressure information of the pipe network in time, effectively locate the pipe burst, and even find high-pressure areas in advance, and take timely measures to prevent pipe burst accidents. Therefore, the generation of urban water supply pipe network pressure distribution map is an important issue in the field of water supply safety ...

AI Technical Summary

Problems solved by technology

However, neural network modeling lacks practical physical meaning, the model is difficult to understand, has a strong dependence on training data, and will produce large errors for sudden changes, and the actual use value is greatly reduced; Zhao Anyu et al. "Establishment of Hangzhou Water Supply Pipe Network Model" published in "Computer Technology" in 2008 used the British InfoWorks WS model software to carry out hydrodynamic modeling of the water supply pipe network in the main urban area of ​​Hangzhou, and the water supply pipe network model established thus The system can basically reflect the actual operation of the pipeline network

However, hydrodynamic modeling requires a comprehensive, sufficient and accurate understanding of the entire water supply network, and requires a large amount of network data. In practice, even for water supply supervision and management departments, this information is often incomplete.

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