Three-dimensional laser scanner fixing mechanism, and subway tunnel acquisition system and method

A technology of three-dimensional laser and fixed mechanism, which is applied in the direction of instruments, mining equipment, and cross-section drawing, can solve the problems of the influence of multiple cameras combined positioning accuracy on the overall accuracy, low measurement efficiency, and high labor cost, and achieve strong design stability and overall Good performance and saving working time

Pending Publication Date: 2018-04-20
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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  • Abstract
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Problems solved by technology

[0010] At present, the traditional manual measurement of tunnel convergence deformation and manual inspection of tunnel ring defects have low measurement efficiency and high labor costs, which are not suitable for the gradually shortened nighttime

Method used

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  • Three-dimensional laser scanner fixing mechanism, and subway tunnel acquisition system and method
  • Three-dimensional laser scanner fixing mechanism, and subway tunnel acquisition system and method
  • Three-dimensional laser scanner fixing mechanism, and subway tunnel acquisition system and method

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Example Embodiment

[0060] The embodiments of the present invention will be described in detail below. This embodiment is developed on the basis of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given.

[0061] Such as figure 1 , When scanning the 3D scene of the 3D laser scanner, the automatic motor drives the scanner body to rotate in the horizontal plane, and the laser transmitter rotates in the vertical plane.

[0062] Such as figure 2 , A schematic diagram of the installation method of the prior art 3D laser scanner, 2a. The base of the 3D laser scanner, 2b. The installation platform of the prior art 3D laser scanner.

[0063] Such as image 3 After removing the base of the 3D laser scanner, remove the base to leave enough space for wiring.

[0064] Such as Figure 4 , The instrument installation platform of the present invention.

[0065] The instrument installation platform 2 includes an upper fixed plate 201, the middle of ...

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Abstract

The invention provides a three-dimensional laser scanner fixing mechanism, a subway tunnel acquisition system and method. The subway tunnel acquisition system includes a three-dimensional laser scanner fixing mechanism, a rail car module, a distance sensor, an RFID reader and a host computer; the three-dimensional laser scanner The point cloud data of the tunnel ring is collected continuously, the distance sensor collects the mileage data in real time and transmits it to the host computer, and the RFID reader returns the read and written RFID smart label signal to the host computer in real time, and the host computer The computer completes multi-source data fusion and storage. The invention solves the problem that the automatic motor of the three-dimensional laser scanner cannot be locked in the section scanning mode, and avoids the damage to the scanner caused by misoperation. Through the integrated design of the two modules of the constant speed rail car and the 3D laser scanner, the quality of the collected data is improved, the automatic collection of tunnel deformation data and disease information is realized, the labor cost is reduced, and the detection efficiency is improved.

Description

technical field [0001] The invention relates to the field of subway tunnel detection, in particular to a three-dimensional laser scanner fixing mechanism, a subway tunnel acquisition system and method. Background technique [0002] 3D laser scanning technology is also known as real scene replication technology. The 3D laser scanner uses a horizontal automatic motor with good stability and precision, which can measure the 3D coordinates and laser reflectance values ​​of all objects in the visible scene. The laser transmitter lens of the 3D laser scanner rotates in the vertical plane, and at the same time, the automatic motor drives the scanner body to rotate in the horizontal direction to complete 360° 3D scene scanning. [0003] The 3D laser scanner also has a section scanning function. The laser emitter rotates in the vertical plane, and the 3D laser scanner does not rotate in the horizontal direction. This function is often used for mobile scanning in the tunnel to monitor...

Claims

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Application Information

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IPC IPC(8): G01B11/00G01B11/16G01C7/06E21F17/18
CPCE21F17/18G01B11/00G01B11/002G01B11/16G01C7/06
Inventor 程胜一高志强王令文许正文刘蝶徐艺文
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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