Three-dimensional pipe network monomer query method and system based on structured data

A technology of structured data and 3D pipe network, applied in the field of data query, it can solve the problems of difficult association of business attributes, huge work of attribute linking, and inability to associate attributes in 3D pipe network model files, so as to ensure query accuracy and efficiency, Convenient data quality check, practical and effective query algorithm

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Problems solved by technology

(4) Spatial distribution is complex
[0005] Although this method can realize single query, it has the following disadvantages: (1) The model is fragmented, which is not conducive to management
In order to query single objects, the entire pipeline has to be artificially segmented. When modeling the pipe network, it is necessary to carry out single modeling for the entire range of the pipe network, that is, to model the pipe network in segments. In such a large scene, fragments There will be many models, which is not conducive to the management and maintenance of model data
(2) The process of model modification is cumbersome: model modification requires splitting the original model and then adding and assembling a new model. At the same time, it is also necessary to re-associate attribute information for the newly added or split model, and finally deal with the three-dimensional topological relationship of the model
(3) Difficulties in associating business attributes
None of the existing 3D pipe network model files can directly associate attributes in the model, and the fragmented model will make the attribute connection work huge and complicated

Method used

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  • Three-dimensional pipe network monomer query method and system based on structured data

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Embodiment 1

[0039] The embodiment of the present invention discloses a three-dimensional pipe network monomer based on structured data (the so-called "monomer" means "a single-section pipeline without a valve or a device connected to other pipelines between the starting point and the end point", and the inner diameter of the pipeline is The radii are usually equal, but the overall trend of the pipeline includes, but is not limited to, straight lines) query methods, including:

[0040] Step S1. Simplify the structural relationship between the three-dimensional pipelines into the topological relationship between the centerlines of the three-dimensional pipelines. Preferably, this step further includes: simplifying the structural relationship between the three-dimensional pipeline and the valve to the relationship between the point and the centerline of the three-dimensional pipeline.

[0041] In the step, compared to processing the topological relationship of the 3D model body, it will be s...

Embodiment 2

[0085] This embodiment discloses a three-dimensional pipe network monomer query system based on structured data, including a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor executes the computer program The program implements the steps corresponding to the above method embodiments.

[0086] To sum up, the three-dimensional pipe network monomer query method and system based on structured data respectively disclosed in the above embodiments of the present invention have at least the following beneficial effects:

[0087] (1) Reduce the number of single models to facilitate modeling and management

[0088] When modeling the 3D solid model of the pipe network, it is not necessary to establish a single model for the pipe network segment. According to the actual business requirements for model refinement, the model within the specified area can be directly exported as a single overall model, without the need to T...

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Abstract

The invention relates to the technical field of data query in electrical digital data processing, and discloses a three-dimensional pipe network monomer query method and system based on structured data so as to realize query of pipeline monomers and improve query efficiency. The method comprises the following steps: simplifying a structural relationship among three-dimensional pipelines into a topological relationship among center lines of the three-dimensional pipelines; constructing at least two sections of three-dimensional pipelines in the area in the same three-dimensional pipeline model according to the coverage area; in the three-dimensional pipe network GIS system, enabling a user to click a pipeline section needing to be inquired through a mouse; obtaining the position of a mouse, and screening out a three-dimensional pipeline center line in a preset range near the mouse; and calculating the shortest distance between each screened three-dimensional pipeline center line and the mouse, determining a pipeline corresponding to the minimum value of the shortest distance from the three-dimensional pipeline center lines with the shortest distance smaller than or equal to the radius of the corresponding pipeline as a target pipeline monomer inquired by the user, and then reading and displaying second attribute data of the target pipeline monomer.

Description

technical field [0001] The invention relates to the technical field of data query in electrical digital data processing, in particular to a three-dimensional pipe network monomer query method and system based on structured data. Background technique [0002] The municipal pipe network has the following characteristics: (1) Large scale. The pipeline network of a single factory or single-family building may exceed 10,000 sections, and the scale of the pipeline network in a small and medium-sized city can be said to be massive. (2) Wide range. In 2019, the length of China's urban artificial gas pipeline network is 10,915 kilometers; the length of urban natural gas pipeline network is 767,946 kilometers; the length of urban liquefied petroleum gas pipeline network is 4,452 kilometers; the length of urban drainage pipeline network is 743,982 kilometers; The net length is 920082 kilometers. (3) There are many types. The urban pipe network includes more than 20 types in 8 categ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F16/248G06F3/0481
CPCG06F16/2458G06F16/248G06F3/0481
Inventor 高斌刘文彬
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