Three-dimensional laser scanner station set-up and oriental device and method

A three-dimensional laser, directional device technology, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of time-consuming and labor-intensive, increasing the cost of measurement, and high performance requirements of scanners, and achieves convenient use, reduced density, and reduced Highest resolution required effect

Active Publication Date: 2018-10-12
南京数联空间测绘科技有限公司 +1
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Problems solved by technology

The disadvantage of this method is that the splicing and coordinate transformation are divided into two steps, which is time-consuming and labor-intensive.
[0007] The above-mentioned method of identifying the center of the three-dimensional point cloud of the target ball requires a relatively high

Method used

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  • Three-dimensional laser scanner station set-up and oriental device and method
  • Three-dimensional laser scanner station set-up and oriental device and method
  • Three-dimensional laser scanner station set-up and oriental device and method

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Embodiment

[0063] In this embodiment, the effective range of the object to be measured is the area covered by a sphere with a radius of 10 meters and the scanner as the center of the sphere. Use the 3D laser scanner that does not use this orientation device and method for scanning measurement. In order to use the point cloud scanning data of the black and white target to identify the position of the target center and ensure the positioning accuracy within 5mm, at least the scanning at 10 meters must be guaranteed. The point spacing of the points is within 5mm, that is, with the scanner as the center of the sphere, the angle between adjacent scanning points and the scanner is 0.0005 radians, that is, there must be a scanning point at a horizontal and vertical interval of 103″ (360 degrees). The entire The scanning station has 6284 rows and 6284 columns, with a total of 39.48 million 3D laser scanning points. In order to meet the needs of user projects, such as tunnel construction projects ...

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PUM

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Abstract

The present invention discloses a three-dimensional laser scanner station set-up and oriental device. The device comprises a digital wide-angle optical camera, a three-dimensional laser scanner and four black and white checkerboard targets; the camera is located on a horizontal cross shaft of a rotation mirror in the three-dimensional laser scanner, the four black and white checkerboard targets are arranged around the three-dimensional laser scanner, and the three-dimensional laser scanner is located on a center point of a graph encircled by the four black and white checkerboard targets. The present invention further provides a three-dimensional laser scanner station set-up and oriental method. The three-dimensional laser scanner station set-up and oriental device and method can effectively reduce the density of scanning point cloud of the scanner on the premise of ensuring transmission precision of the position and the direction of the three-dimensional laser scanner so as to save thetime of obtaining the point cloud by the scanner and reduce the requirement for the scanner to obtain the highest resolution ratio of the point cloud, and are suitable for low-cost set-up and orientation usage through the three-dimensional laser scanner.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional laser measurement and engineering measurement, and in particular relates to a station setting and orientation device and method of a three-dimensional laser scanner. Background technique [0002] As a new type of fast, high-precision, high-density measurement technology equipment, the 3D laser scanner has quickly become a high-tech equipment for 3D measurement and detection because it can quickly obtain high-precision, high-density spatial position points on the surface of objects. Compared with the traditional total station, the advantages of this device in application are mainly reflected in the rapid, comprehensive and accurate acquisition of geometric shape information on the surface of complex objects. Unlike the traditional total station and other measurement methods that obtain discrete sampling feature points on the surface of an object at a time, a scanner can obtain tens of mil...

Claims

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Application Information

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IPC IPC(8): G01S17/89G01S17/02G01S7/481G01B11/24G01C15/00
CPCG01B11/24G01C15/00G01S7/4817G01S17/89G01S17/86
Inventor 尤相骏
Owner 南京数联空间测绘科技有限公司
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