Three-dimensional laser measurement lifting platform

Abstract

The invention discloses a three-dimensional laser measurement lifting platform, which comprises a laser projection module, a leveling module, a mobile centering module, a cylinder type lifting main body and a centering bottom plate, wherein connecting holes are designed in all functional modules and between components, the functional modules and the components are mutually connected and fixed by using screws, the laser projection module, the leveling module, the mobile centering module, the cylinder type lifting main body and the centering bottom plate are sequentially installed from top to bottom, and reinforced connection is performed on the functional modules by using reserved screw holes. The advantages lie in that the three-dimensional laser measurement lifting platform is of an automatic, simplified and intelligent concept, a problem that a centering and leveling operation cannot be performed after the platform is lifted is avoided, the scanning workload of a three-dimensional scanner in large-scale deformation monitoring for the surface of a mining area can be reduced to a great extent after the three-dimensional laser scanner is lifted, and thus the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping instruments, in particular to a three-dimensional laser measuring lifting platform. Background technique [0002] Three-dimensional laser scanners are used to monitor surface deformation in mining areas. Now most of them use tripods and bases to set up three-dimensional laser scanners, which can keep the scanners in a horizontal state, and the center of the scanners and the measurement points buried on the ground are on the same plumb line , and the erection height generally does not exceed 2m. After the instrument is centered and leveled, a GPS measurement system can be erected above the 3D laser scanner, and the precise 3D coordinates of the observation point on the ground and the center of the 3D laser scanner can be obtained at the same time, which can be used for subsequent office multi-site data. The automatic stitching process provides basic data, but it is found that the scan...

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Problems solved by technology

[0002] Three-dimensional laser scanners are used to monitor surface deformation in mining areas. Now most of them use tripods and bases to set up three-dimensional laser scanners, which can keep the scanner in a horizontal state, and the center of the scanner is on the same plumb line as the measurement point buried on the ground surface. , the erection height generally does not exceed 2m. After the instrument is centered and leveled, the GPS measurement system can be erected above the 3D laser scanner, and the precise 3D coordinates of the observation point on the ground and the center of the 3D laser scanner can be obtained at the same time, which will provide the follow-up multi-site data in the office. The automatic stitching process provides basic data, but during the measurement process, it is found that the scanner is installed at a low height, and the laser point cloud is easily blocked by ground buildings or other objects, and the effective measurement range is small, the point cloud density is sparse, and the field measurement efficiency is low.

[0003] In order to break through the occlusion of landforms, improve the quality and efficiency of scanning work, and accelerate the automation and intelligentization of surveying and mapping work, the 3D laser scanner needs to be raised during field surveys, such as 2m-10m, or even higher; based on the current At this stage, various lifting platforms such as scissor type, rack and pinion type and hydraulically driven plunger type are commonly used at home and abroad. It is found that the existing lifting platform has no lifting system that can meet the needs of measurement work, that is, the 3D laser scanner Height As the lifting platform rises, due to the influence of the terrain, it cannot be guaranteed that the 3D laser scanner is in a horizontal state, nor can it be guaranteed that the center of the scanner and the measurement point on the ground are on the same plumb line, and the higher the height, the more off-center farther away

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