Three-dimensional real-time navigation method and system for earthwork construction

A navigation method and three-dimensional technology, applied in the direction of instruments, data processing applications, image data processing, etc., to achieve the effect of improving visualization, improving construction efficiency, and improving the degree of digital management

Pending Publication Date: 2022-02-08
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the lack or improvement of the existing three-dimensional navigation technology for earthwork construction, the present invention aims to provide a three-dimensional real-time navigation method and system for earthwork construction to realize three-dimensional real-time navigation for earthwork construction, so as to improve the digital management level of earthwork construction, and then improve construction efficiency

Method used

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  • Three-dimensional real-time navigation method and system for earthwork construction
  • Three-dimensional real-time navigation method and system for earthwork construction
  • Three-dimensional real-time navigation method and system for earthwork construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] [Example 1] Path navigation planning of a manned bulldozer

[0092] For the straight-line operation of manned bulldozers, the goal is to find a straight-line operation direction and make full-arrangement straight-line operations in this direction to obtain the least number of fully-covered straight-line operation paths. The optimal straight-line operation direction is determined by the minimum number of operations, in order to flatten the land without repetition. Usually, the method of bulldozing along a certain corner or a certain side of the plot is divided into several vertical sections. Therefore, the operation of the straight-line operation method The number of times is equal to the width of the working area along the vertical working direction divided by the effective bulldozing width of the bulldozer.

[0093] Scenario assumptions:

[0094] 1) One coordinate point every five meters, that is, the distance between adjacent coordinate points is five meters, which i...

Embodiment 2

[0121] [Example 2] Unmanned bulldozer construction path navigation planning and blade working surface data generation

[0122] 1.1 Overview of the problem

[0123] In subgrade engineering, the straight-line operation of unmanned bulldozers is generally similar to the goal of manned bulldozers. It is also to find a straight-line operation direction, and make full-arrangement straight-line operations in this direction, and obtain the least number of full-coverage straight-line operations path. The optimal straight-line operation direction is determined by the shortest number of operations, in order to bulldoze all the land without repetition. Usually, the method of bulldozing along the corners of the plot is divided into several verticals. Therefore, the number of vertical bulldozing in the straight-line operation method It is equal to the width of the working area along the direction of the vertical bulldozing path divided by the effective bulldozing width of the bulldozer. I...

Embodiment 3

[0157] [Example 3] Construction path algorithm for grader

[0158] 1.1 Overview of the problem

[0159] The goal of the grader operation path planning is to find a straight-line operation direction, and make a full-arrangement straight-line operation in this direction, and obtain a fully-covered straight-line operation path with the least number of times. The optimal straight-line operation direction is determined by the shortest number of operations, in order to expect the land to be completely leveled without repetition. Usually, it is divided into several vertical flats along a certain corner or a certain side of the plot. Therefore, the repeated vertical The number is equal to the width of the working area along the vertical working direction divided by the effective leveling width of the grader.

[0160] Question assumptions:

[0161] 1) One coordinate point every five meters, that is, the distance between adjacent coordinate points is five meters;

[0162] 2) The path...

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Abstract

The invention discloses a three-dimensional real-time navigation method and system for earthwork construction, and belongs to the field of construction navigation. According to the method, the three-dimensional space pose of the engineering machinery is calculated based on high-precision positioning data of the engineering machinery, and a three-dimensional scene model and a three-dimensional design model are matched according to the current three-dimensional space pose of the engineering machinery by loading three-dimensional scene model data and three-dimensional design model data of a construction site in a database. And based on the difference between the three-dimensional live-action model and the three-dimensional design model, the three-dimensional model of the part is highlighted. And according to the three-dimensional space pose of the engineering machinery, the construction track of the engineering machinery is planned in combination with the current construction stage. And a navigation line and a navigation arrow of a construction track are added on the displayed three-dimensional design model to generate a three-dimensional navigation scene. The problems of low digitization degree, non-visual construction navigation display and the like of earthwork construction for a long time are solved.

Description

technical field [0001] The invention belongs to the field of construction navigation, and more specifically relates to a three-dimensional real-time navigation method and system for earthwork construction. Background technique [0002] Earthwork construction is one of the main construction processes in construction engineering. For a long time, earthwork construction has faced problems such as low digitalization and unintuitive construction navigation display. In the existing technology, there is a lack of effective systems and working methods for earthwork construction navigation. . [0003] In the field of road driving, various forms of three-dimensional vehicle navigation software have become effective navigation means in vehicle driving. The driver can use the three-dimensional map to judge the direction to go and find the road to drive. In the process of earthwork construction, construction machinery operators lack intuitive real-time acquisition and display methods f...

Claims

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Application Information

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IPC IPC(8): G06T17/05G06T7/90G06F16/29G06Q10/04
CPCG06T17/05G06T7/90G06F16/29G06Q10/047
Inventor 尤轲丁烈云周诚陈维亚彭刚
Owner HUAZHONG UNIV OF SCI & TECH
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