Continuous laser three-dimensional scanning method and device based on Gresham's law hinge principle

A Sham's law and laser three-dimensional technology, applied in the field of continuous laser three-dimensional scanning technology, can solve problems such as inability to scan three-dimensionally, high speed requirements for data acquisition systems, complex digital circuit processing, etc., and achieve fast speed, high precision, and large measurement range Effect

Pending Publication Date: 2017-05-31
广州光和光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly proposes a laser radar system that can flexibly scan and reconstruct a large range of distant objects, which solves the defects of complex digital circuit processing and high

Method used

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  • Continuous laser three-dimensional scanning method and device based on Gresham's law hinge principle
  • Continuous laser three-dimensional scanning method and device based on Gresham's law hinge principle
  • Continuous laser three-dimensional scanning method and device based on Gresham's law hinge principle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] Such as figure 1 As shown, this embodiment proposes a continuous-light laser scanning device based on Sham’s law hinge principle, including 1-diode laser, 2-laser collimation original, 3-reflector, 4-motor, 5-motion in the figure. Control part motor servo, 6-receiving telescope, 7-photoelectric detector (CCD / CMOS), 8-piezoelectric ceramic, 9-motion control part piezoelectric ceramic controller, 10-signal synchronization circuit.

[0029] The present invention proposes a continuous laser three-dimensional scanning device based on the hinge principle of Sham’s law, including a laser 1, a reflector 3, a receiving telescope 6, a photodetector 7, a signal synchronization circuit 10; a reflector 3, a receiving telescope 6 and a photoelectric The detector 7 is placed according to Sham’s law, the mirror 3 is set at the intersection of the object plane, the phase plane and the focal plane, and the angle is rotatable. The signal synchronization circuit 10 controls t...

Example Embodiment

[0030] Example 2

[0031] Compared with Embodiment 1, the present invention uses piezoelectric ceramic 8, motion control part piezoelectric ceramic controller 9, photodetector 7 is connected with piezoelectric ceramic 8, and piezoelectric ceramic controller 9 controls the up and down movement of piezoelectric ceramic 8 , And feedback a synchronization signal to control the motor 4 connected to the mirror 3. The laser collimating original 2 is placed in front of the diode laser 1, and the laser collimating original 2 is placed in front of the adjustable mirror 3.

Example Embodiment

[0032] Example 3

[0033] The continuous-light laser imaging device based on the hinge principle of Sham’s law includes a laser emitting part, a laser receiving part, an imaging part, a data acquisition and analysis part, a motion control part, a signal synchronization part; the laser emitting part, laser receiving part and imaging The part, the motion control part, and the signal synchronization part are connected; the data acquisition part is connected to the imaging part. This technology utilizes the hinge principle in Sabouraud's law, selects the rotation point through formula calculation, and rotates the mirror to change the laser scanning direction, thereby achieving the purpose of scanning.

[0034] The laser emission part mainly includes a continuous laser light source (Laser diode) and a laser collimation original. The continuous laser emitted by the laser light source is incident on the target path direction after the laser collimation original. At this time, the target e...

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Abstract

The invention discloses a continuous laser three-dimensional scanning method and device based on a Gresham's law hinge principle. The device comprises a laser, a reflecting mirror, a receiving telescope, a photoelectric detector and a signal synchronous circuit, wherein the reflecting mirror, the receiving telescope and the photoelectric detector placed according to the Gresham's law; the reflecting mirror is arranged on the crossing point of the object plane, the phase plane and the focal plane and can rotate for an angle; the signal synchronous circuit controls the photoelectric detector to follow the rotation synchronous upward and downward displacement of the reflecting mirror and always conforms to the Gresham's law; an adjustable reflecting mirror is put in front of the diode laser; the reflecting mirror reflects the laser to a target object in the environment and then reflects or reflects out a light signal; the light signal is received by the receiving telescope group; the light signal received by the receiving telescope can be gathered onto the photoelectric detector. The method and the device provided by the invention are applicable to prospective large-range object three-dimensional scanning; the rotating reflecting mirror and the upward and downward flat moving detector scanning imaging method is used; the continuous light scanning is realized; the high-precision and clear scanning image of an object in a remote position can be obtained.

Description

technical field [0001] The invention belongs to the technical field of laser three-dimensional scanning, in particular to continuous laser three-dimensional scanning technology based on the hinge principle of Sham's law. Background technique [0002] With the development of the times, we often have to analyze large-scale three-dimensional objects in large-scale construction areas or mountainous areas in order to obtain useful information. At present, the images acquired by most image acquisition devices are on a two-dimensional plane. In order to obtain the information we need more accurately, we need to obtain its three-dimensional imaging image, so various scanning imaging technologies are applied. At present, the scanning imaging technology mainly focuses on point cloud imaging, dual-camera imaging technology and traditional laser scanning technology based on Shakespeare's law. Among these three technologies, point cloud imaging and the traditional scanning technology ba...

Claims

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Application Information

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IPC IPC(8): G01S17/89G01B11/24
CPCG01B11/24G01S17/89
Inventor 赵光宇苏尼斯万贝里李颖
Owner 广州光和光科技有限公司
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