A Multifunctional Integrated Tunnel 3D Laser Scanning Platform

Abstract

The invention discloses a multifunctional integrated tunnel three-dimensional laser scanning platform in the technical field of laser scanners, which can realize omni-directional scanning of the tunnel without depending on the track during the scanning process, and is suitable for various trackless tunnels and various Underground space structure. Including: laser scanner and integrated working platform. The laser scanner is installed on the support rod. The support rod is hinged with the integrated working platform through the ball joint assembly. The distance sensor is installed on the support rod. The laser scanner and the distance sensor are respectively connected with the data The processing device is electrically connected, the data processing device is electrically connected to the control panel, and the control panel and the data processing device are fixed on the integrated working platform; the integrated working platform is equipped with a power system, a braking system and multiple walking wheels, and the power The system drives the integrated working platform forward or backward by driving the traveling wheels, and the braking system provides braking force for the traveling wheels to stop the integrated working platform at the designated position.

Description

technical field [0001] The invention belongs to the technical field of laser scanners, and in particular relates to a multifunctional integrated tunnel three-dimensional laser scanning platform. Background technique [0002] 3D laser scanning technology, also known as real scene replication technology, is a technological revolution in the field of surveying and mapping after GPS technology. It breaks through the traditional single-point measurement method and has the unique advantages of high efficiency and high precision. 3D laser scanning technology can provide 3D point cloud data on the surface of the scanned object, collect and summarize point cloud data, and form a 3D solid model of the underground structure. [0003] During the operation of various tunnels, various diseases will appear in the tunnel structure over time, which typically include: structural dripping water seepage, concrete cracks, spalling, falling blocks and other diseases, and such diseases generally ...

AI Technical Summary

Problems solved by technology

At present, the traditional manual measurement of tunnel deformation, cracks and other tunnel diseases has low efficiency and high labor cost, which is not suitable for the current subway tunnel measurement

[0004] Existing tunnel 3D laser scanning technology is mostly used in subway tunnels or other tracked tunnels, where the scanner moves directional in the tunnel through rail cars. For trackless road tunnels or other underground structures with complex spaces, the laser scanner lacks fixed directional movement The track, the scanned data of the tunnel points are messy, unable to fit the 3D model of the tunnel, and have no use value

The conventional section scanner must keep the laser scanner vertical on the track, so as to scan the cross section of the tunnel. For the trackless underground space with complex terrain, such as slopes or uneven ground, the laser scanning conference can scan the slope of the tunnel. The cross-sectional diagram is not the cross-sectional contour diagram. The point cloud data scanned by the laser is an oblique section, which is difficult to use and cannot realize the control and detection of tunnel deformation.

Images