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Water flow situation estimation method for urban underground drainage pipe network

A technology of drainage pipe network and water flow, applied in the field of automation, can solve problems such as difficult water flow situation

Inactive Publication Date: 2020-04-24
HANGZHOU DIANZI UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for estimating the water flow situation based on state-saturated complex networks in view of the problem that the water flow situation of the urban underground drainage pipe network in my country is difficult to be estimated in a timely and accurate manner.

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  • Water flow situation estimation method for urban underground drainage pipe network
  • Water flow situation estimation method for urban underground drainage pipe network
  • Water flow situation estimation method for urban underground drainage pipe network

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Embodiment Construction

[0074] The method for estimating the water flow situation of urban underground drainage pipe network, the specific steps are:

[0075] Step (1). Establish the state space model of the water flow situation estimation system of the urban underground drainage network.

[0076] Based on Saint-Venant's equations in hydraulic principles, a state-space model of the water flow situation in the urban underground drainage network system is established: in:

[0077] x i (k)=[x i1 T (k),x i2 T (k),x i3 T (k)] T ∈R 3 , Indicates the state vector of the water flow situation of node i at time k, the positive integer N indicates the number of nodes constituting the complex network, and the symbol means n 0 dimensional column vector, the superscript T indicates the transpose of the matrix; x i1 (k), x i2 (k), x i3 (k) represent the water level height value, water flow velocity value and water flow value of node i respectively;

[0078] the y i (k)=[y i1 T (k)y i2 T (k)]...

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Abstract

The invention discloses a water flow situation estimation method for an urban underground drainage pipe network. Various complex factors bring great difficulties to water flow situation estimation ofan urban underground drainage system. The method comprises the steps of firstly establishing a state space model of a water flow situation estimation system of the urban underground drainage pipe network, then constructing an estimator model of the water flow situation of the underground drainage pipe network, solving a water flow situation estimator of the urban underground drainage pipe networksystem, and obtaining a gain matrix of the estimator. According to the method, the underground drainage pipe network is described by using a state saturation complex network; meanwhile, a random timedelay effect in measurement data transmission is considered; through finite time mean square boundness and interference suppression performance analysis of a drainage pipe network water flow situationestimation system, a linear matrix inequality method is used for solving an estimator, timely and accurate estimation of the urban underground drainage pipe network water flow situation is achieved,and the actual safe operation requirement of an underground drainage system is met.

Description

technical field [0001] The invention belongs to the field of automation, and relates to a method for estimating the water flow state of an urban underground drainage network. The method estimates the water flow state of the urban underground drainage network based on a state-saturated complex network model, and can be used in the drainage industry of modern cities. Background technique [0002] The safe and effective operation of the urban underground drainage system is an important guarantee for industrial production and the safe and healthy life of urban residents. The flow of urban underground drainage system is affected by many factors such as residents' behavior, industrial behavior, precipitation and pipeline leakage. The diameter of underground drainage pipeline is limited, and the measurement of water flow state is subject to large external interference and the hysteresis of measurement is random. In order to reduce the overflow of pipeline sewage and realize the con...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
Inventor 何运涛陈云柏建军薛安克
Owner HANGZHOU DIANZI UNIV
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