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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 speed requirements of the data acquisition system in the traditional laser radar scanning system, and improves the The defect that the traditional scanning technology based on the law of sand cannot scan in 3D

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

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Embodiment 1

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

[0029] A continuous laser three-dimensional scanning device based on the hinge principle of Sham's law proposed by the present invention includes a laser 1, a reflector 3, a receiving telescope 6, a photoelectric detector 7, and 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 reflector 3 is set at the intersection of the object plane, the phase plane and the focal plane, and can be rotated at an angle, and the signal synchronization circ...

Embodiment 2

[0031] Compared with Embodiment 1, the present invention connects the piezoelectric ceramics 8 through the piezoelectric ceramics 8, the motion control part piezoelectric ceramics controller 9, the photodetector 7, and the piezoelectric ceramics controller 9 controls the piezoelectric ceramics 8 to move up and down , and feed back a synchronous signal to control the motor 4 connected to the mirror 3 . The laser collimation original 2 is placed in front of the diode laser 1 , and the adjustable mirror 3 is placed in front of the laser collimation original 2 .

Embodiment 3

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

[0034]The laser emitting part mainly includes a continuous laser light source (Laser diode) and a laser collimation element. The continuous laser light emitted by the laser source is incident on the direction of the target path after passing through the laser collimation element. At th...

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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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