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Two-dimensional laser scanning apparatus

A technology of scanning equipment and two-dimensional laser, applied in the direction of measuring devices, surveying and navigation, instruments, etc., can solve the problems of cumbersome calibration of measuring equipment, measurement data errors, complexity, etc., and reduce the influence of factors such as external temperature on equipment, Satisfies the requirements of ranging accuracy and is easy to operate

Inactive Publication Date: 2016-07-13
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The triangulation method requires a lot of positioning parameters in the application, and it is very cumbersome and time-consuming in the calibration of the measuring equipment. If a certain parameter in the system cannot be accurately obtained during the actual measurement, it will cause errors in the measurement data
The measurement electronics are far more complex than the pulse method

Method used

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  • Two-dimensional laser scanning apparatus
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] see Figure 1 to Figure 3 , Example 1 has a base 1, a horizontal slewing platform 2, a bracket 4, and a vertical shaft 9. The bracket 4 is fixed on the horizontal slewing platform 2, the vertical shaft 9 is fixedly connected to the base 1, and the horizontal slewing platform 2 is on the base 1. And rotating around the axis 9a of the vertical axis 9, a horizontal main horizontal axis 5 is fixed on the bracket 4; the axis 5a of the main horizontal axis 5 intersects the axis 9a of the vertical axis 9 to form a main intersection; There is a main observation device 6-1 fixed on the horizontal axis 5, and the first main observation device 6-1 is a telescope with a built-in CCD digital camera, and its collimation axis is called the first main observation line 6-1a; Line 6-1a passes through the main intersection and is perpendicular to the axis 9a of the vertical axis 9 and the axis 5a of the main horizontal axis 5; the connecting rod 13 is set on the primary observation device 6...

Embodiment 2

[0028] see Figure 4 to Figure 6 , Example 2 has a base 1, a horizontal slewing platform 2, a bracket 4, and a vertical shaft 9. The bracket 4 is fixed on the horizontal slewing platform 2, the vertical shaft 9 is fixedly connected to the base 1, and the horizontal slewing platform 2 is on the base 1. And rotating around the axis 9a of the vertical axis 9, a horizontal main horizontal axis 5 is fixed on the bracket 4; the axis 5a of the main horizontal axis 5 intersects the axis 9a of the vertical axis 9 to form a main intersection; The second main observation device 6-2 is fixed on the horizontal axis 5. The second main observation device 6-2 is a laser, and its optical axis is called the second main observation line 6-2a; the second main observation line 6-2a passes The main intersection point is also perpendicular to the axis 9a of the vertical axis 9 and the axis 5a of the main horizontal axis 5; a connecting rod 13 is provided on the No. 2 main observation device 6-2, and t...

Embodiment 3

[0035] see Figure 7 to Figure 9 , Example 3 has a base 1, a horizontal slewing platform 2, a bracket 4, and a vertical shaft 9. The bracket 4 is fixed on the horizontal slewing platform 2, the vertical shaft 9 is fixedly connected to the base 1, and the horizontal slewing platform 2 is on the base 1. And rotating around the axis 9a of the vertical axis 9, a horizontal main horizontal axis 5 is fixed on the bracket 4; the axis 5a of the main horizontal axis 5 intersects the axis 9a of the vertical axis 9 to form a main intersection; The No. 3 main observation device 6-3 is fixed on the horizontal axis 5. The No. 3 main observation device 6-3 is a laser, and its optical axis is called the No. 3 main observation line 6-3a; the No. 3 main observation line 6-3a passes through the main The intersection point is perpendicular to the axis 9a of the vertical axis 9 and the axis 5a of the main horizontal axis 5; a connecting rod 13 is provided on the No. 3 main observation device 6-3, a...

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Abstract

A two-dimensional laser scanning apparatus comprises a base, a horizontal rotary platform, a support and a vertical shaft, a horizontal main cross shaft is fixed on the support, an axis of the main cross shaft intersects with an axis of the vertical shaft, a first main observing device is fixed to the main cross shaft, a connecting rod is fixed to the first main observing device and is provided with a shaft carrier, an auxiliary s haft capable of rotating around its axis is arranged on the shaft carrier, a first auxiliary observing device is fixed to the auxiliary shaft, and a first main observing line and a first auxiliary observing line are coplanar; the two-dimensional laser scanning apparatus may be used directly for scanning without complex time-consuming calibration in advance, the influence of factors such as exterior temperature upon the apparatus is reduced, the requirement for ranging precision can be fully met, and the apparatus is convenient to operate.

Description

Technical field [0001] The invention relates to a two-dimensional laser scanning device. Background technique [0002] Laser scanning is a technique for reconstructing panoramic data and models of targets from complex entities or real scenes. Laser scanners have been successfully used in many fields, such as industrial surveying, topographic surveying, cultural relics protection, urban modeling, parallel inspection, reverse engineering and virtual reality. [0003] Ranging information plays an important role in laser scanning. According to the principle of distance measurement, it can be divided into triangulation method, pulse method and phase method. The triangulation method is that a beam of laser light is irradiated on the object, and part of the diffusely reflected laser light is imaged on the photoelectric detection device through a prism. Triangulation has many requirements for positioning parameters in application, and it is very cumbersome and time-consuming to calibrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C3/00
CPCG01C3/00
Inventor 刘浏范真
Owner JIANGSU UNIV OF TECH