Total station and three-dimensional laser scanning combined large-scale maritime work equipment measuring method

Abstract

The invention specifically relates a total station and three-dimensional laser scanning combined large-scale maritime work equipment measuring method, and solves the problem that a conventional measuring method of existing large-scale maritime work equipment cannot measure concealed positions thereof. The method includes the following steps: a. control measurement points are arranged around large-scale maritime work equipment and are intervisible; b. space coordinates of the control measurement points are measured; c. targets are arranged around a three-dimensional laser scanner, and ensuring the number of targets of the same name between adjacent measuring stations is larger than 3; d. the three-dimensional laser scanner calculates space coordinates of point cloud data; e. the total station measures space coordinates of the targets of the same name and of large-scale maritime work equipment welding points; f. the point cloud data and the space coordinates of the targets of the same name measured by the total station are imported into point cloud processing software, thereby improving matching precision of overall point cloud; and g. the point cloud processing software is used to select by clicking to obtain the welding points of concealed positions of the large-scale maritime work equipment. The total station and three-dimensional laser scanning combined large-scale maritime work equipment measuring method obtains three-dimensional coordinates of each welding point of the large-scale maritime work equipment.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for precise measurements over vast areas without having to use expensive specialized tools or devices that require physical contact from outside sources like radar systems. It uses multiple levels of lightweight rodings attached to an object called a tower to accurately determine their dimensions along different directions. By integrating these data into larger units, it becomes more accurate than current techniques such as triangulation.

Problems solved by technology

The technical problem addressed in this patented text relates to accurately measuring oceanographic facilities that have been installed on land or waterways after production without causing damage from environmental conditions like temperatures, manufacturers' specifications, disturbances caused by waves, and other external influences. Current systems require expensive laboratory measurements which may only provide partial results with limited detail but also result in discontinuity between measured points over time.