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Method for monitoring illegal building based on DSM and DOM

A technology for construction and illegal construction, applied in the field of surveying and mapping geographic information, can solve the problems of cumbersome work, low efficiency, and insufficient monitoring accuracy, and achieve the effects of flexible functions, improved efficiency, task efficiency and deterrence.

Pending Publication Date: 2021-12-07
GUANGZHOU JIANTONG SURVEYING MAPPING & GEOINFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to better solve the problem that the monitoring accuracy of illegal buildings is not high enough, and the work is cumbersome and inefficient. It provides a method for monitoring illegal buildings based on DSM and DOM, which can quickly improve efficiency and improve data accuracy.

Method used

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  • Method for monitoring illegal building based on DSM and DOM
  • Method for monitoring illegal building based on DSM and DOM
  • Method for monitoring illegal building based on DSM and DOM

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1: Third-party aerial photography technical service project in Meijiang District

[0064] The main work content of this project is to take aerial photography of the target area every 7 days for key areas of about 105 square kilometers within the urban area of ​​Meijiang District, Meizhou City, comprehensively and accurately obtain the current status of buildings in the target area, and archive the aerial photography data of each period ;Establish a three-dimensional lidar-based surface elevation model and map spot comparison environment; compare the data before and after the target area, and submit the position information, coordinate parameters, and comparison picture information of the changed buildings in the target area and other related data results; The minimum requirement for the surface elevation model is a scale of 1:2000; the number of days of extreme weather such as the average annual rainfall and strong winds in Meizhou City is 142 days, and the numbe...

Embodiment 2

[0065] Example 2: Xingning City Planning and Construction Comprehensive Monitoring Project

[0066] The main work content of this project is to conduct periodic monitoring of the buildings within the 53 square kilometers of the key planning of Xingning City, and realize the rapid discovery of illegal buildings by comparing data from multiple periods. In terms of building height change monitoring, priority will be given to the height change monitoring of the main urban area of ​​Xingning City. Considering the airspace and weather factors comprehensively, the accumulative number of collections in the whole year is 32 times. In this project, the self-innovated monitoring technology means - airborne laser radar measurement technology and the latest illegal building monitoring means - the method of monitoring illegal buildings based on DSM and DOM are also used. This method can obtain places with illegal buildings with high efficiency and high accuracy, making up for the shortcomi...

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Abstract

The invention discloses a method for monitoring illegal buildings based on DSM and DOM, and the method comprises the steps: arranging an airplane and LiDAR equipment to enter, and enabling the airplane to take off for the collection of LiDAR and orthoimage data; checking point cloud data and POS data in time, and carrying out IMU and GPS combined calculation by software; liDAR data collected in field work, subjecting IMU and GPS combined calculation and control combined measurement seven parameters to data processing, and finally acquiring DSM and DOM data; obtaining a change pattern spot of the illegal building by comparing the DSM of the two-stage data, and obtaining an image comparison map of the illegal building according to the combination of the change pattern spot and the two-stage DOM data; and finally, forming a first-stage illegal building monitoring report. According to the invention, through analysis and comparison of the DSM of two periods obtained in different time periods, the height change area of the building can be obtained with high efficiency and high precision. And in combination with DOM data, the building change type can be determined. The monitoring strength of urban illegal buildings is enhanced, illegal buildings can be found in time, illegal buildings can be restrained, and unnecessary losses are reduced.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping geographic information, in particular to a method for monitoring illegal buildings based on DSM and DOM. Background technique [0002] With the development of urbanization, the appreciation space of real estate is constantly increasing, and incidents such as illegal occupation of land, new illegal buildings, and illegal buildings added to the original buildings are not uncommon. The problem of illegal buildings has become a major problem for city managers. Although many cities have established special land law enforcement departments to carry out inspections, traditional manual inspections are limited by human resources and access to information, and there are low work efficiency. With the acceleration of urban construction, a single manual method will become more and more stretched. How to use information technology to complete the supervision of illegal land use cases, and make lan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/10G06Q50/26G06F30/12G06F40/194G06K9/00
CPCG06Q10/103G06Q50/26G06F30/12G06F40/194
Inventor 吴端松温康平吴剑铭
Owner GUANGZHOU JIANTONG SURVEYING MAPPING & GEOINFORMATION TECH
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