Urban water supply pipe network operation evaluation method based on prediction

Abstract

The invention provides an urban water supply pipe network operation evaluation method based on prediction, and relates to the field of urban water supply prediction. The method comprises the following steps: firstly, proposing a mixed water demand prediction model fusing multiple correction mechanisms, and predicting the total water demand of residents in the next day in a water supply area; then providing a sequence-to-sequence based coding and decoding network structure, and performing minute-level prediction on the water pressure of each node of the pipe network; and proposing a pressure dynamic threshold value of a pipe network pressure measuring point based on prediction information, holiday and festival information and the like. By means of the method, accurate evaluation of the overall operation state of the urban water supply pipe network is achieved, and scheduling guidance is provided for water volume allocation of the urban water supply system.

Description

technical field [0001] The invention belongs to the field of urban water supply forecasting, in particular to a forecast-based urban water supply network operation evaluation method. Background technique [0002] The water supply system plays a pivotal role in urban construction and is an important part of national infrastructure and urban public utilities. It is usually composed of raw water, water pipelines, water plants and pump stations, and water supply pipe networks. The water pipeline goes to the water plant to be processed and converted into clean water, which is pressurized by the water pump unit and distributed to users by the water supply pipe network. The water supply system is very important to the rational allocation and efficient management of water resources. It determines the health and normal operation of the urban water supply network. In the scientific decision-making process of the water supply system, there are many factors to be considered, such as the...

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Problems solved by technology

[0004] 1. Most of the dispatchers of water plants and pumping stations mainly use manual judgment and other empirical dispatching. They do not fully consider the water demand of users and the water pressure of the pipe network in the future, and the use of historical data information is not comprehensive enough. , usually pay attention to the current data value, rely on the general concept of the law of residential water use, there is no specific guidance on scheduling methods, and the empirical model is relatively solid

[0005] During the scheduling process, the dispatcher mainly pays attention to the pressure of certain pipe networks in the water supply area. There is no comprehensive assessment method for the status of the water supply pipe network. Since different dispatchers have different dispatching habits, under the same situation, when the future There are large differences in the dispatching instructions and what kind of dispatching instructions are issued. Subjective factors have a great influence, and it is difficult to conduct unified management and evaluation of dispatching, which lacks rationality.

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