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Two-dimensional-laser-radar-based method for measuring three-dimensional scanning system of hopper-shaped container

A two-dimensional laser radar, three-dimensional scanning technology, applied in measurement devices, radio wave measurement systems, instruments, etc., can solve the problems of unrealistic use and high price of three-dimensional laser radar.

Active Publication Date: 2017-07-07
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

However, 3D lidar is expensive, and it is not realistic to use it in the loading process of ordinary civilian enterprises

Method used

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  • Two-dimensional-laser-radar-based method for measuring three-dimensional scanning system of hopper-shaped container
  • Two-dimensional-laser-radar-based method for measuring three-dimensional scanning system of hopper-shaped container
  • Two-dimensional-laser-radar-based method for measuring three-dimensional scanning system of hopper-shaped container

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Embodiment Construction

[0025] combined with Figure 1-6 The present invention is described in detail.

[0026] established as figure 1 The 3D scanning system shown.

[0027] The system is installed directly above the scanned container, and completes the scanning of the container by rotating the scanning plane of the two-dimensional laser radar 1 to realize three-dimensional scanning. The hardware used in the system includes: two Two-dimensional laser radar 1, rotary table 2, motor 3, bracket 4, computer 5 and calibration parts 6 equipped with point cloud data storage and processing programs, the scanning plane of two-dimensional laser radar 1 is located at the front end of the laser radar, perpendicular to the side of the laser radar . The two-dimensional laser radar 1 is installed on the table of the rotary table 2, and the motor 3 is installed on the side of the rotary table 2, driving the table of the rotary table 2 to complete the rotation on the horizontal plane, and then driven to be instal...

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Abstract

The invention relates to a two-dimensional-laser-radar-based method for measuring a three-dimensional scanning system of a hopper-shaped container. The method comprises: a measuring system is calibrated; a calibration element is moved away and a hopper-shaped container is arranged right below a two-dimensional laser radar; a computer equipped with point cloud data storage and processing programs sends a rotation instruction to motor and sends a scanning instruction to the two-dimensional laser radar simultaneously, so that the motor drives a workbench to make rotation and the two-dimensional laser radar installed on the work bench to scan a measured object; data obtained by scanning are stored into the computer with the point cloud data storage and processing programs, the computer carries out simplification processing on the data to transform the simplified data into ones in a three-dimensional point cloud manner, and the three-dimensional point cloud is drawn at a computer screen; and triangular mesh construction is carried out on the three-dimensional point cloud to restore a three-dimensional mesh model of the hopper-shaped container, and extraction of boundary data of the hopper-shaped container is carried out and thus appearance dimensions like the length, width, and depth of the hopper-shaped container are calculated.

Description

technical field [0001] The invention relates to a three-dimensional scanning system for a bucket-shaped container and a measurement method thereof, in particular to a measurement method for a three-dimensional scanning system for a bucket-shaped container based on a two-dimensional laser radar. Background technique [0002] Lidar has the advantages of fast ranging speed, high precision, and intuitive measurement information, and has been more and more widely used in military, aviation, and civil fields. At present, lidar is mainly divided into two types: two-dimensional lidar and three-dimensional lidar. Two-dimensional laser radar can only obtain distance and angle information on a single scanning plane, which is stored in the form of polar coordinates, and the image obtained after post-processing is only a two-dimensional image of the scanned object on the laser radar scanning plane. Dimensional contour plot. The 3D laser radar can rotate the scanning plane while scannin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/89G01S7/497
CPCG01S7/497G01S17/89
Inventor 黄风山马帅张付祥
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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