Three-dimensional laser scanning-based land expropriation and housing removal physical goods investigation method and investigation system thereof

A three-dimensional laser and survey system technology, applied in the direction of optical devices, image data processing, measuring devices, etc., can solve the problems of inability to make detailed statistics and query of topography, inconvenient adjustment and modification, high probability of error, etc., to meet the requirements of ease of use and Convenience, easy adjustment and modification, and strong applicability

Active Publication Date: 2016-12-21
JIANGSU ENG EXPLORATION & SURVEYING INST
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for investigating physical objects of land acquisition and demolition based on three-dimensional laser scanning, aiming at solving the problem of insufficient efficiency, high error probability, inconvenient adjustment and modification, and inability to make detailed statistics and inquiries in the existing physical object investigation methods for land acquisition and resettlement Topography and landform and detailed tracking and comparison of demolition workload

Method used

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  • Three-dimensional laser scanning-based land expropriation and housing removal physical goods investigation method and investigation system thereof
  • Three-dimensional laser scanning-based land expropriation and housing removal physical goods investigation method and investigation system thereof
  • Three-dimensional laser scanning-based land expropriation and housing removal physical goods investigation method and investigation system thereof

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specific Embodiment 1

[0042] Such as figure 1 As shown, the embodiment of the present invention provides a method for physical investigation of land acquisition and demolition based on three-dimensional laser scanning, including selection steps, setting steps, scanning steps, acquisition steps, processing steps, and generation steps, wherein:

[0043] The selection step is to select and determine the land acquisition and demolition area;

[0044] The setting step is to set up multiple design sites in the land acquisition and demolition area;

[0045] In the scanning step, the physical objects in the land acquisition and demolition area are scanned by a 3D laser scanning device along multiple sites to obtain topography data, land classification area data, 3D coordinate point cloud data and image data of multiple site sites;

[0046] The acquisition step is to acquire the coordinate data and elevation data of multiple set points;

[0047] The processing step is to stitch and adjust the three-dimensio...

specific Embodiment 2

[0055] Such as figure 2 As shown, the embodiment of the present invention provides a specific embodiment, and describes in detail the physical investigation method for land expropriation and resettlement based on three-dimensional laser scanning proposed in the above embodiment.

[0056] In a specific embodiment of the present invention, refer to figure 2 shown, including the following steps:

[0057] S201, preparing a three-dimensional laser scanner;

[0058] The technical requirements of the 3D laser scanner: it has a camera function and has a GPS module;

[0059] The physical survey record method based on 3D laser scanning can be:

[0060] Investigators set up 3D laser scanning equipment to scan the physical object along the predetermined site. The main content of the scan includes the following four aspects:

[0061] 1) Point information, record the three-dimensional coordinates of the current point through laser scanning at the predetermined site, and the feature el...

specific Embodiment 3

[0111] Such as image 3 As shown, the embodiment of the present invention provides a land expropriation and demolition object investigation system based on three-dimensional laser scanning, including a selection module, a setting module, a scanning module, an acquisition module, an adjustment module, and a generation module, wherein:

[0112] The selection module is used to select and determine the land acquisition and demolition area;

[0113] The setting module is used to set multiple setting points in the land acquisition and demolition area;

[0114] The scanning module is used to scan the physical objects in the land expropriation and demolition area along multiple sites with a 3D laser scanning device to obtain topographical data, land classification area data, 3D coordinate point cloud data and image data of multiple site sites;

[0115] The acquisition module is used to acquire coordinate data and elevation data of a plurality of setting points;

[0116] The adjustme...

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Abstract

The invention provides a three-dimensional laser scanning-based land expropriation and housing removal physical goods investigation method and an investigation system thereof. According to the technical scheme of the invention, firstly, the point cloud data of a target object are obtained through the three-dimensional laser scanning technology, wherein the point cloud data are composed of the three-dimensional information of topography, houses and the appendage thereof, tree vegetation, bridges, special projects, power lines, communication lines and the like. Secondly, after the treatment of the related software, a ground feature model obtained by point cloud data is matched with images, so that a high-precision three-dimensional model is obtained. The method and the system have the advantages of low cost, simplicity, feasibility, rapidness, convenience and strong applicability, and meet the requirements of usability and convenience. A three-dimensional information system supporting platform is established for the planning design of involuntary resettlement and rehabilitation and the management of land expropriation and relocation for large and medium-sized water conservancy projects, so that the working efficiency is greatly improved. The accuracy of data and the intuitiveness of real objects are guaranteed, and the adjustment and the modification are convenient in operation. Meanwhile, detailed landform data can be obtained, so that the subsequent demolition workload can be conveniently and finely tracked and compared.

Description

technical field [0001] The invention relates to the technical field of physical investigation of land acquisition and resettlement, in particular to a method and system for physical investigation of land acquisition and demolition based on three-dimensional laser scanning. Background technique [0002] At present, the physical survey of land acquisition and resettlement mainly consists of plotting topographic maps and survey data of physical quantity. The operation method is to hold the red line map of land acquisition and demolition of the project, measure the area of ​​houses and their attachments in the field, investigate the information of resident population, enterprises and institutions, etc., and plot the boundaries of villages, groups, land types, special facilities, and third lines on the spot. The internal industry sorts out and inputs the survey survey data, measures the land area, and summarizes and forms survey data results and survey reports. [0003] The curr...

Claims

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Application Information

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IPC IPC(8): G01B11/00G01B11/24G06T17/00
CPCG01B11/002G01B11/24G06T17/00
Inventor 王志林耿汉文赵亚徐加东陈永勤杜波叶瑞锋孔德博胡玉龙蒋志强段云飞戚国香吉祖湛
Owner JIANGSU ENG EXPLORATION & SURVEYING INST
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