CN106524942A - Soldering-tin three-dimension surface scanning device - Google Patents
Soldering-tin three-dimension surface scanning device Download PDFInfo
- Publication number
- CN106524942A CN106524942A CN201611210075.8A CN201611210075A CN106524942A CN 106524942 A CN106524942 A CN 106524942A CN 201611210075 A CN201611210075 A CN 201611210075A CN 106524942 A CN106524942 A CN 106524942A
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- China
- Prior art keywords
- generating laser
- laser
- scolding tin
- laser emitter
- translation stage
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A soldering-tin three-dimension surface scanning device comprises a laser emitter I, a laser emitter II, a gigabit network camera and a translation bench. A circuit board with soldering tin is arranged on the translation bench. The laser emitter I, the laser emitter II and the gigabit network camera are arranged above the translation bench. The laser emitter I and the laser emitter II are located on two sides of the gigabit network camera. The gigabit network camera is vertical to the translation bench. The laser emitter I and the laser emitter II form 45 degree with a vertical center line of the gigabit network camera. The structure is simple and the device can scan accurately.
Description
Technical field
The invention belongs to scolding tin three-dimensional surface scanning technique field, specifically a kind of scolding tin three-dimensional surface scanning means.
Background technology
The accurate measurement of article geometrical size is an application in photoelectric detecting technology widely and practical value is non-
Often high problem.Computer vision measurement method has that contactless, accuracy is high, data are easy to process, are easy to automatically control
Advantage, thus the photoelectric measurement method based on computer vision as the indispensable technology of following productive life by many researchs
Person studies.With developing rapidly for Computer Image Processing, using computer vision methods relative to pure machine in accurate measurement
Tool method or other optical meanss have the advantages that operation simplicity, wide accommodation, high precision directly perceived, with application well
Prospect, it has also become the focus studied both at home and abroad.
Having many uses for the measuring three-dimensional profile method of object, can apply in robot navigation, vision guided navigation, monitoring manufacture
Etc. industry.Have in the technologies such as the virtual reality technology for rising in recent years simultaneously, image-based rending, three-dimensional animation
Extensively apply.In the SMT industry very high to required precision, the implementation method of the reconstructing 3 D contour of object is a lot, main to wrap
Contact and contactless two big class are included, in noncontact, optical application is the most extensive.The optical meanss of object dimensional reconstruct are again
Two class of active vision and passive vision can be divided into.Non-contacting feature optical based on active vision with intrinsic noncontact,
It is easily achieved and the advantages of higher precision, is that side head does not contact measured surface in measurement process the characteristics of this method, and surveys
Amount speed is fast, it is adaptable to the three-dimensional measurement of the various complex surface models of various soft, hard material.
The content of the invention
This application provides a kind of scolding tin three-dimensional surface scanning means, using two high-precision laser emitters, high accuracy
Mobile platform and gigabit networking image mechanism into 3 D scanning system, three of all scolding tin in whole circuit board are completed in 30 seconds
Dimension stereoscan process, and error is in 5 micrometer ranges.
For achieving the above object, the technical scheme of the application employing is：A kind of scolding tin three-dimensional surface scanning means, it is concrete to wrap
Include：
A kind of scolding tin three-dimensional surface scanning means, including：Generating laser I, the shooting of generating laser II, gigabit networking
Machine, translation stage；Circuit board with scolding tin is placed on translation stage, generating laser I, the shooting of generating laser II, gigabit networking
Machine is placed in above translation stage, and generating laser I, generating laser II are located at gigabit networking video camera both sides；The gigabit networking
Video camera is in 45 with the vertical center line of gigabit networking video camera perpendicular to translation stage, generating laser I, generating laser II
Degree.
The present invention is due to using above technical scheme, obtaining following technique effect：The application simple structure, scanning
Precisely；The 3 D stereo scanning process of all scolding tin in whole circuit board is completed in 30 seconds, and error is in 5 micrometer ranges.
Description of the drawings
The present invention 3 width of total accompanying drawing：
Principle schematics of the Fig. 1 for 2 device of embodiment；
Fig. 2 is the offset digitized map that laser lines are formed on scolding tin surface；
Fig. 3 is the three-dimensional scolding tin surface effect simulation drawing to be formed.
Number explanation in figure：1st, generating laser I；2nd, generating laser II；3rd, gigabit networking video camera；4th, translation stage；
5th, scolding tin.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
The present invention provides a kind of scolding tin three-dimensional surface scanning means, and circuit board is with translation stage linear uniform motion, circuit
When video camera shoots field, the twice laser lines on scolding tin surface can form offset to scolding tin on plate, by different time points
Offset carry out three-dimensional data reduction, finally give scolding tin three dimensional surface data information.
Before construction measurement, a scaling board is used, the fixed thickness of this scaling board is 0.2mm, for laser rays
When the scolding tin surface for having height, laser lines offset can be formed, the offset value of this offset value and scaling board 0.2mm is changed
The height of this scolding tin is obtained in calculation.
When scolding tin at the uniform velocity moves ahead with mobile platform, the laser rays of two generating laser injections form two on platform
Road parallel lines, when there is scolding tin through camera field of photography, twice laser rays form offset, are obtained using image processing algorithm
Laser rays centre coordinate when there is each pixel of laser line position on scolding tin surface, then in obtaining and having the laser of laser rays on platform
Heart coordinate, two coordinate differences and time write file in real time, when scanning object skids off scanning area, terminate automatically Current Scan.
Embodiment 1
The present embodiment provides a kind of scolding tin three-dimensional surface scanning means, including：Generating laser I, generating laser II, thousand
Million web cameras, translation stage；Circuit board with scolding tin is placed on translation stage, generating laser I, generating laser II, thousand
Million web cameras are placed in above translation stage, and generating laser I, generating laser II are located at gigabit networking video camera both sides；Institute
Gigabit networking video camera is stated perpendicular to translation stage, during generating laser I, generating laser II are vertical with gigabit networking video camera
Heart line is in 45 degree.
Embodiment 2
The present embodiment provides a kind of scolding tin three-dimensional surface scan method, specifically includes：
S1, image is read in first, gray processing, gaussian filtering process are carried out to image；
S2, the laser lines on image are obscured using fuzzy algorithmic approach, enrich laser lines；
S3, reuse gaussian filtering and processed；
S4 and then sharpen, filter the variegated of laser line edge on image；
S5, there is each pixel position of laser rays on scolding tin surface using limit coordinate method, with laser rays vertical direction
Region of search, the pixel coordinate of all laser white points of search are formed, and then obtains the centre coordinate of laser white point, this centre coordinate
It is just the laser rays centre coordinate of this pixel；
S6, the like, each time point is stored in file all laser center coordinates, when object leaves surface sweeping region
When, twice laser rays are reduced into parallel lines, and scanning terminates automatically；Read file and build three-dimensional system of coordinate, ultimately form simulation
Three-dimensional scolding tin exterior view.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, should all be included within the scope of the present invention.
Claims (1)
1. a kind of scolding tin three-dimensional surface scanning means, it is characterised in that include：Generating laser I, generating laser II, gigabit
Web camera, translation stage；Circuit board with scolding tin is placed on translation stage, generating laser I, generating laser II, gigabit
Web camera is placed in above translation stage, and generating laser I, generating laser II are located at gigabit networking video camera both sides；It is described
Gigabit networking video camera is perpendicular to translation stage, the vertical centre of generating laser I, generating laser II and gigabit networking video camera
Line is in 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210075.8A CN106524942A (en) | 2016-12-24 | 2016-12-24 | Soldering-tin three-dimension surface scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210075.8A CN106524942A (en) | 2016-12-24 | 2016-12-24 | Soldering-tin three-dimension surface scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106524942A true CN106524942A (en) | 2017-03-22 |
Family
ID=58337544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611210075.8A Pending CN106524942A (en) | 2016-12-24 | 2016-12-24 | Soldering-tin three-dimension surface scanning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106524942A (en) |
Citations (12)
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| US7375826B1 (en) * | 2004-09-23 | 2008-05-20 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration (Nasa) | High speed three-dimensional laser scanner with real time processing |
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| CN101520309A (en) * | 2008-02-28 | 2009-09-02 | 鸿富锦精密工业（深圳）有限公司 | Imaging device |
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| CN103673901A (en) * | 2013-11-22 | 2014-03-26 | 大连日佳电子有限公司 | Solder paste thickness testing method and solder paste thickness tester |
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| CN103759671A (en) * | 2014-01-10 | 2014-04-30 | 西北农林科技大学 | Non-contact scanning method of dental cast three-dimensional surface data |
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2016
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| DE102007063041A1 (en) * | 2007-12-28 | 2009-07-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Laser light section arrangement for determining e.g. elevation profile of object, has image processing device for identifying and separating laser sectional lines from each other in recorded image, and assigning lines to respective lasers |
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Application publication date: 20170322 |