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

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...

AI Technical Summary

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

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