Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Engineering earthwork metering method based on point cloud measurement technology

A measurement technology, engineering earthwork technology, applied in the direction of volume measurement instruments/methods, measurement capacity, measurement devices, etc., can solve the problems of poor robustness, large errors, etc., achieve fast and convenient operation, realize high automation, improve calculation accuracy and Computational Efficiency Effects

Active Publication Date: 2020-08-28
CCCC GUANGZHOU DREDGING
View PDF9 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides an engineering earthwork measurement method based on point cloud measurement technology to solve the technical problems of existing earthwork measurement methods with large errors, poor robustness, and a large amount of manual intervention

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Engineering earthwork metering method based on point cloud measurement technology
  • Engineering earthwork metering method based on point cloud measurement technology
  • Engineering earthwork metering method based on point cloud measurement technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see figure 1 , a kind of engineering earthwork measurement method based on point cloud measurement technology of the present invention, comprises the following steps:

[0048] S1, based on the target 3D terrain surface data, the initial 3D terrain surface data and the stage 3D terrain surface data, through the 3D surface interpolation method, to obtain the construction point cloud of the target terrain surface, the construction point cloud of the initial 3D terrain surface and the stage 3D terrain surface The construction point cloud of

[0049] S2, using triangular grid differentiation or Thiessen polygon grid differentiation processing on the horizontal projection of the structure point cloud to obtain the projected lattice structure grid;

[0050] S3, calculate the volume difference of the grid column column micro-element to judge whether it is cutting or filling;

[0051] S4, the volume values ​​of the prism micro-elements formed by grid division are accumulated and...

Embodiment 2

[0072] An engineering earthwork measurement method based on point cloud measurement technology has inconsistent requirements for the plane density of points in the point cloud projection matrix when performing over- and under-excavation calculations and earthwork check calculations.

[0073] For general earthworks, according to the steps described in Embodiment 1, the unprocessed point cloud ( Figure 8a and Figure 8b ) to generate a construction point cloud ( Figure 9a and Figure 9b ). When the differential grid is generated from the constructed point cloud, the triangular grid ( Figure 10 ) for the requirements of the planar density of the points in the projection lattice of the construction point cloud, compared with the Thiessen polygon grid ( Figure 11 ) will be lower.

[0074] Compared with the prior art, the present invention is an engineering earthwork calculation method based on point cloud measurement technology. The present invention adopts triangular grid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an engineering earthwork metering method based on a point cloud measurement technology. Based on the calculus thought, the operation is fast and convenient; the calculation precision and the calculation efficiency are obviously improved; the robustness is relatively high; the method is suitable for various common earthwork scenes; the calculation precision depends on the quality of the input three-dimensional terrain data; according to the method, high automation can be achieved, only a digital three-dimensional curved surface, underwater measurement data and projectionlattice arrangement parameters need to be input and designed, manual operation is remarkably reduced, and particularly, the method relates to point cloud processing, can be compatibly coupled with alaser scanning technology, an unmanned aerial vehicle photography technology and other new technologies, and has good expansibility.

Description

technical field [0001] The present invention relates to the technical field of earthwork calculation methods, and more particularly, to an engineering earthwork measurement method based on point cloud measurement technology. Background technique [0002] In the field of civil engineering, earthwork measurement, as an important basis for construction and settlement, runs through the entire construction cycle. Classical earthwork calculation methods include section method, square grid method and irregular triangular grid method. [0003] The section method is often used for earthwork calculations in narrow and long areas such as roads and embankments. Select several typical engineering sections according to the engineering design data, and assume uniform changes between adjacent sections. This method is essentially a simplified model, which is only suitable for simple construction situations. When the terrain is complex, there is a large error between the calculation result...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01F17/00
CPCG01F17/00
Inventor 殷达汪望明许向东张鹏廖曾平
Owner CCCC GUANGZHOU DREDGING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com