Method and system for collecting, transmitting and processing three-dimensional laser surveying and mapping data of building

Abstract

The invention discloses a method and a system for collecting, transmitting and processing three-dimensional laser surveying and mapping data of a building. The system comprises a mobile terminal, a fast plane collector, a three-dimensional laser scanner, a portable router, a data transmission holder, a computer terminal and a database. According to the invention, the plane graph of the building can be rapidly collected through the rapid plane collector; the mobile terminal is used for planning and recording the scanning fixed point position, transmitting a point cloud file in real time, mastering field work in real time, reasonably planning site setting and conveniently checking building surveying and mapping data; data are automatically processed and stored through a data management platform and a database, so that the problem of insufficient data integrity caused by incomplete field information, incapability of self-inspection and disordered data names in traditional data arrangement work is solved; and a data user can browse and process the point cloud file through a computer terminal by logging in a webpage of the data management platform, so that the software and hardware requirements of point cloud file processing are reduced, the universality is enhanced, and the building surveying and mapping cost is saved.

Description

technical field [0001] The invention relates to the field of architectural surveying and mapping, in particular to a method and system for acquiring, transmitting and processing architectural three-dimensional laser surveying and mapping data. Background technique [0002] Generally, when collecting 3D data of a building, it is very important to plan the scanning fixed-point position of the 3D scanning device reasonably, and for different surveying and mapping objects, the focus of data collection is also different; since data users will not be on site at any time , and the scanning operators have limited understanding of the surveying and mapping data of the building, they may not be able to accurately understand the thoughts of the data users, and cannot accurately record and communicate the site conditions in a timely manner, resulting in the insufficient scanning fixed-point position of the 3D laser scanner planned by the scanning operator , which may eventually lead to ...

AI Technical Summary

Problems solved by technology

[0002] Generally, when collecting 3D data of a building, it is very important to plan the scanning fixed-point position of the 3D scanning device reasonably, and for different surveying and mapping objects, the focus of data collection is also different; since data users will not be on site at any time , and the scanning operators have limited understanding of the surveying and mapping data of the building, they may not be able to accurately understand the thoughts of the data users, and cannot accurately record and communicate the site conditions in a timely manner, resulting in the insufficient scanning fixed-point position of the 3D laser scanner planned by the scanning operator , which may eventually lead to the inability to collect complete and reasonable architectural surveying and mapping data

[0003] And the general collection of architectural surveying and mapping data is collected through multiple 3D scanning devices at the same time. Due to inconsistent operation progress of each device and poor communication between operators, it is impossible to objectively evaluate the progress of data collection. Therefore, traditional architectural 3D scanning surveying and mapping data often The density of data collection and the number of point cloud files will be increased to ensure the integrity of the data as much as possible, but this will result in a large amount of redundant data, and even so, it cannot be avoided that the data is not complete due to errors in planning the scanning position

[0004] At the same time, in the traditional construction data collection and mapping, due to the inconvenient self-examination of the scanning fixed-point position of the 3D scanning equipment and the surveying and mapping data on site, it is necessary to transfer the collected data back to the computer after the on-site collection work is completed, so that the completeness of the data can be verified Therefore, some data at certain scanning points are often missed and not collected, resulting in incomplete surveying and mapping data

[0005] The processing of traditional architectural 3D surveying and mapping data requires professional processing software, which requires high hardware equipment such as computers, and the software needs to be purchased separately, and the data cannot be shared with other computers through the software, which has poor versatility

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