Method for optimizing surface measurement of curved surface template based on three-dimensional laser scanning technology

Abstract

The invention discloses a curved surface template surface measurement optimization method based on a three-dimensional laser scanning technology, and the method comprises the following steps: 1, carrying out the three-dimensional scanning of a curved surface template through a three-dimensional laser scanner after the curved surface template is constructed according to the design of BIM software, and obtaining the scanning point cloud data of the curved surface template; 2, processing the scanning point cloud data of the curved surface template to obtain complete template surface point cloud data; and step 3, comparing and analyzing the template surface point cloud data and the BIM model of the curved surface template. The three-dimensional laser scanning technology is utilized to directly obtain the point cloud data, the point cloud data and the BIM model are subjected to 3D contrastive analysis, the curved surface deviation is rapidly and automatically calculated, the positions which do not meet the construction standard are marked and fed back to the site for rectification, and the method plays an important role in improving the construction precision and quality.

Description

technical field [0001] The invention relates to a measurement method of a building component template, in particular to an optimization method for surface measurement of a curved template based on a three-dimensional laser scanning technology. Background technique [0002] At present, in the construction engineering survey, the measurement of the special-shaped surface is an extremely important work. The traditional measurement method is mainly to use the total station to measure the point position, and use the multi-point measurement mode to calculate the surface. Area structure surface measurement is less efficient. A large number of technical researches have been carried out on the measurement method of hyperbolic special shape at home and abroad. With the development of technology, the work efficiency and measurement accuracy in the measurement process have been improved to a certain extent, but there are still many defects, such as: calculation accuracy It is related t...

AI Technical Summary

Problems solved by technology

At home and abroad, a lot of technical research has been done on the measurement methods of hyperbolic irregular shapes. With the development of technology, the work efficiency and measurement accuracy in the measurement process have been improved to a certain extent, but there are still many defects, such as: calculation accuracy It is related to the measurement density, quality and grid size, and the data processing accuracy is low. In order to meet the measurement accuracy of special-shaped surfaces, the measurement data volume is large and there are many overlapping parts; at the same time, the measurement operation is limited by the implementation site, and the amount of post-measurement data processing Large and requires high professionalism of personnel

These defects still restrict the accuracy and efficiency of special-shaped surface measurement operations to a large extent

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