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Three-dimensional automatic modeling method for underground pipelines

A technology of underground pipelines and modeling methods, which is applied in the field of geographic information systems, can solve problems such as low modeling accuracy, low work efficiency, and high labor intensity, and achieve the goals of saving time, manpower, and improving 3D modeling methods Effect

Inactive Publication Date: 2018-05-25
自然资源部第六地形测量队
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Problems solved by technology

[0003] Aiming at the problems of high labor intensity, low work efficiency, and low modeling precision in the existing three-dimensional modeling method for underground pipelines, the present invention proposes a three-dimensional automatic modeling method for underground pipelines based on well chamber body expression, which not only effectively reduces the cost of modeling labor-intensive, and improves the accuracy of 3D modeling

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  • Three-dimensional automatic modeling method for underground pipelines
  • Three-dimensional automatic modeling method for underground pipelines
  • Three-dimensional automatic modeling method for underground pipelines

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Embodiment Construction

[0024] The three-dimensional automatic modeling method for underground pipelines provided in this embodiment is based on the actual needs of field operations, using ground penetrating radar, pipeline detectors, and total stations for surveying and mapping, and performing data processing and topology inspection based on the results of field surveying and mapping , automatic modeling, scene operation and other operations to achieve fast and accurate modeling.

[0025] The three-dimensional automatic modeling method for underground pipelines comprises the following steps:

[0026] 1. Field survey and mapping: use ground penetrating radar and pipeline detectors to detect underground pipelines, mark the location of pipelines on the spot, draw pipeline sketches, and then use total stations and levels to collect three-dimensional information of pipelines, which is called original pipeline data.

[0027] 2. Well chamber model classification: According to the shape and structural chara...

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Abstract

The invention relates to the geographic information system and provides a three-dimensional automatic modeling method for underground pipelines. The method comprises steps of field investigation and plotting, well chamber model classification, data standardization processing, topology checking, data association, automatic modeling and scene operation. The method is advantaged in that precise modeling of the pipelines can be rapidly and efficiently realized, a traditional underground pipeline three-dimensional modeling method is improved, modeling precision is improved, moreover, manpower is saved, and the automatic pipeline modeling time is shortened.

Description

technical field [0001] The invention relates to a geographic information system, in particular to a three-dimensional automatic modeling method for underground pipelines. Background technique [0002] Due to the rapid development of urban construction, underground pipelines are becoming more and more complex, and the two-dimensional underground pipeline detection graphic results can no longer fully express the complex spatial hierarchical relationship between pipelines. The three-dimensional visualization of pipelines is intuitive and real, so it has attracted more and more attention. The 3D visualization of pipelines requires high efficiency and precision in 3D modeling of pipelines and appendages. The pipeline is a simple linear object, its 3D expression is relatively easy, and the modeling method is relatively mature; while the well chamber of the pipeline appendage has a complex structure and various shapes, its 3D modeling is mostly done by traditional manual modeling, ...

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Application Information

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IPC IPC(8): G06T17/05G06F17/50
CPCG06F30/20G06F2113/14G06T17/05
Inventor 张云吴思王明洋彭剑秋张芳
Owner 自然资源部第六地形测量队