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A method and system for supplementing and perfecting urban underground drainage network data

A drainage pipe network and data technology, which is applied in the field of data supplementation and improvement methods and systems for urban underground drainage pipe networks, can solve the problems of fast and reasonable without data supplementation and improvement.

Active Publication Date: 2020-08-28
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this paper analyzed the rule model and method of urban pipe network spatial data quality inspection, and proposed rules for automatic inspection of pipe network data, it did not propose a fast and reasonable plan for data supplementation

Method used

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  • A method and system for supplementing and perfecting urban underground drainage network data
  • A method and system for supplementing and perfecting urban underground drainage network data
  • A method and system for supplementing and perfecting urban underground drainage network data

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Effect test

Embodiment 1

[0066] A method for supplementing and perfecting urban underground drainage pipe network data, such as figure 1 As shown, step 100 is executed to mark the pipe type, manually analyze the pipe diameter thresholds of main pipes and branch pipes according to the existing pipe diameter data, and distinguish the pipelines into main pipes and branch pipes according to the pipe diameter thresholds.

[0067] Step 110 is executed to fill the pipe diameter or section shape data according to the topology. Calculate the included angle of all the pipelines connected to the pipeline, assign the pipe width of the pipeline with the smallest included angle to the pipeline, and include the included angle between the main pipe and the main pipe and / or the branch pipe and the branch pipe. The calculation method of the included angle includes the following steps:

[0068] Step 111, calculate the cosine value cosθ for each pipeline through the position of the upstream and downstream nodes, the cal...

Embodiment 2

[0073] like figure 2 As shown, a system for supplementing and improving urban underground drainage network data includes a pipe marking module 200 , a data filling module 210 , a DEM setting module 220 and an elevation filling module 230 .

[0074] Pipe marking module 200: used for pipe type marking, manually analyzing the pipe diameter thresholds of main pipes and branch pipes according to the existing pipe diameter data, and distinguishing pipelines into main pipes and branch pipes according to the pipe diameter thresholds.

[0075] Data filling module 210: used to fill pipe diameter or section shape data according to the topology, calculate the included angles of all pipelines connected to the pipeline, and assign the pipe width of the pipeline with the smallest included angle to the pipeline. Wherein, the included angle includes the included angle between the main pipe and the main pipe and / or the branch pipe and the branch pipe. The calculation method of the included an...

Embodiment 3

[0079] The present invention provides a scheme for automatically supplementing and perfecting urban pipe network data attributes by combining the pipe network topology structure with the actual situation of the actual pipe network project. data support.

[0080] Digitize the urban pipeline network data. The digitalized pipeline attributes include upstream bottom elevation, downstream bottom elevation, pipe diameter, pipeline type (main pipe or branch pipe), buried depth and other parameters. The digital model is as follows: image 3 shown.

[0081] In the process of digitizing the underground drainage pipe network, there are data missing and business applications cannot be carried out. The methods for automatically supplementing and improving urban pipe network data include pipeline type marking, pipe diameter or section shape data filling, pipeline reference DEM setting, and topology Relational filling elevation, filling elevation according to buried depth and other processe...

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Abstract

The invention provides an urban underground drainage pipe network data supplementing and perfecting method and system, and the method comprises the steps: marking a pipe type, and also comprises the following steps: filling pipe diameter or section shape data according to topology; setting a pipeline reference DEM; filling elevation according to the topological relation; and filling the elevationaccording to the default burial depth. The invention provides an urban underground drainage pipe network data supplementing and perfecting method and system. A scheme for automatically supplementing and perfecting urban pipe network data attributes is provided, and data of an urban underground water pipe network can be automatically and quickly supplemented and perfected by utilizing a method forrealizing data supplementing based on a spatial relationship and a method for filling an elevation value based on pipeline gradient.

Description

technical field [0001] The invention relates to the technical field of underground drainage pipe networks, in particular to a method and system for supplementing and perfecting urban underground drainage pipe network data. Background technique [0002] The digitalization of urban pipe network data includes data such as plane coordinates, ground elevation, upstream pipe bottom elevation, downstream pipe bottom elevation, pipe diameter or cross-sectional shape, etc. Business needs. [0003] Yan Yuyao's master's thesis "Design and Implementation of Urban Pipeline Network Spatial Data Quality Inspection System" published on "China University of Geosciences (Beijing)" in 2012, takes urban pipe network spatial data as the main research object, and analyzes and studies a large amount of spatial data On the basis of the norms and standards, according to the division of different quality elements and the characteristics of data models, the techniques and methods of quality control a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/904G06F16/909G06Q50/26
CPCG06F16/904G06F16/909G06Q50/26
Inventor 胡昌伟崔洁赵永鹏臧文斌刘媛媛李敏刘业森李匡郝晓丽徐美
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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