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Earth volume calculation method and system

A computing method and computing system technology, applied in computing, measuring device, image data processing and other directions, can solve the problem of the large limitations of UAV oblique photography technology, and achieve the effect of strong practical value

Pending Publication Date: 2020-06-05
SHANGHAI NO 4 CONSTR
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Problems solved by technology

However, in actual use at present, the use of UAV oblique photography technology has relatively large limitations, and is only suitable for projects with regular shapes.

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  • Earth volume calculation method and system

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Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 As shown, the present invention provides a method for calculating earthwork volume, comprising:

[0033] Step S1, using the UAV oblique photography technology to obtain the current terrain data of the target object;

[0034] Here, UAV oblique photography technology can be used to obtain oblique image data of the current terrain sequence, and at the same time, the coordinate information of site control points can be obtained by using measuring instruments such as total stations;

[0035] Step S2, processing the current terrain data to establish a real scene model of the current terrain;

[0036] Step S3, extracting (x, y, z) three-dimensional coordinates of each point graphic element in the terrain from th...

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Abstract

The invention provides an earthwork volume calculation method and system, and the method comprises the steps: obtaining the current situation data of a field construction site through employing an unmanned plane oblique photography technology, and generating a current situation site live-action three-dimensional model; employing a BIM model for extracting initial terrain data, generating an initial terrain curved surface model, then comparing the two models in software, and calculating the earthwork volume calculated. According to the method, the problems of difficult calculation, large workload, low efficiency, large calculation result error and the like of irregular complex earthwork volume in earthwork engineering are effectively solved, and the method has very high practical value.

Description

technical field [0001] The invention relates to an earthwork volume calculation method and system. Background technique [0002] Earthwork is an important part of the construction budget, and the rapid and accurate calculation of earthwork quantity is of great significance for saving construction investment and rationally allocating project funds. Commonly used earthwork calculation methods include grid method, cross-section method, contour method and table method. The disadvantage is that the real shape of the landform cannot be accurately represented by scattered elevation points, and the errors continue to accumulate during the calculation process. Make earthwork calculation results deviate from the exact value. [0003] The UAV oblique photography technology developed in recent years has the advantages of flexible operation, fast flight speed, low cost, and high resolution. Utilizing UAV oblique photography technology to assist the calculation of earthwork volume can gr...

Claims

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Application Information

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IPC IPC(8): G06T17/05G01B11/00
CPCG06T17/05G01B11/002
Inventor 辛佩康蔡志宏黄平张云超仇春华
Owner SHANGHAI NO 4 CONSTR
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