CN110455199A - Pcb board Pin needle height detection method and system - Google Patents
Pcb board Pin needle height detection method and system Download PDFInfo
- Publication number
- CN110455199A CN110455199A CN201910590217.5A CN201910590217A CN110455199A CN 110455199 A CN110455199 A CN 110455199A CN 201910590217 A CN201910590217 A CN 201910590217A CN 110455199 A CN110455199 A CN 110455199A
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- pin needle
- pcb board
- information
- image data
- detection method
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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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0608—Height gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses pcb board Pin needle height detection method and systems, wherein, method includes: after having the image data of Pin needle one side by obtaining pcb board, the location information of Pin needle is obtained according to image data acquisition, the preliminary elevation information and reference altitude information that Pin needle is obtained further according to the location information of Pin needle, the actual height information of Pin needle is calculated finally by resulting preliminary elevation information and reference altitude information；It solves in the prior art since pcb board Pin needle pin increases, quickly and effectively Pin needle can not be detected the technical issues of whether pcb board meets quality requirement determined, provide a kind of efficient, reliable pcb board Pin needle height detection method.
Description
Technical field
The present invention relates to pcb board Pin needle height detection technique fields, more particularly, to pcb board Pin needle height detection method
And system.
Background technique
Blob analysis: the Blob in computer vision refers to one piece of connected region in image, and Blob analysis is exactly to preceding
Bianry image after scape/background separation carries out connected domain extraction and label.
With the continuous development of science and technology, more and more electronic devices are all integrated on one piece of pcb board, to realize more
More functions saves more spaces.Since the electronic device integrated on pcb board is more and more, the pin of Pin needle also can
With increasing, very big workload is brought to whether technical staff's detection pcb board meets quality requirement.
In the prior art, artificial inspection is generallyd use to determine whether pcb board meets quality requirement by detection Pin needle height
The mode of survey carries out, the pin of Pin needle also can in the case where increasing to testing staff bring extra workload and by
Mistake is easy to appear in the mode of artificial detection.Therefore, how to be provided in the case where the pin of pcb board Pin needle increases efficient
Quickly and the detection method of automation is known as those skilled in the art's technical problem urgently to be solved.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to provide a kind of efficient, reliable pcb board Pin needle height detection method.
For this purpose, a second object of the present invention is to provide a kind of inspections of automation, high efficient and reliable pcb board Pin needle height
Examining system.
The technical scheme adopted by the invention is that:
In a first aspect, the present invention provides a kind of pcb board Pin needle height detection method comprising:
Obtain the image data that pcb board has Pin needle one side；
According to the location information of described image data acquisition Pin needle；
The preliminary elevation information and reference altitude information of Pin needle are obtained according to the positional information；
The actual height information of Pin needle is obtained according to the preliminary elevation information and the reference altitude information.
Further, the image data for obtaining pcb board and there is Pin needle one side specifically: by having blue laser
Scanner scanning described in pcb board to obtaining described image data.
Further, the location information according to described image data acquisition Pin needle specifically includes:
Described image data are read using Halcon software, obtain the preset range region of Pin needle；
The location information is obtained by the preset range region that Blob analyzes the Pin needle.
Further, the preliminary elevation information for obtaining Pin needle according to the positional information and reference altitude information tool
Body includes:
The preliminary elevation information is obtained according to the positional information；
Obtain the pcb board reference position region other than the preset range region of the Pin needle；
The reference position point for randomly choosing pcb board reference position region described at least two, obtains the reference position point pair
The elevation information answered；
Average height information, that is, the reference altitude information obtained according to the corresponding elevation information of the reference position point.
Second aspect, the present invention provide a kind of pcb board Pin needle height detecting system comprising:
Scanner with blue laser, the image data that there is Pin needle one side for obtaining pcb board to be detected；
Computer, for receiving and processing the actual height for obtaining the pcb board Pin needle to be detected after described image data
Information.
Further, the pcb board Pin needle height detecting system further includes the fixed device of pcb board, and the pcb board is fixed
Device is for fixing the pcb board to be detected.
Further, the pcb board Pin needle height detecting system further includes fixed frame and ball-screw apparatus, the PCB
Board fixer is fixedly connected in the ball of the ball-screw apparatus；The fixed frame includes longitudinal carrier and horizontal support,
The horizontal support is set to the surface of the fixed device of the pcb board and, the longitudinal direction parallel with the fixed device of the pcb board
Bracket is connected with the horizontal support by readily removable fixing piece, and the scanner with blue laser is installed on the laterally branch
On frame.
Further, the scanner with blue laser is set to the 106mm right above the pcb board to be detected
Place.
The beneficial effects of the present invention are:
Pcb board Pin needle height detection method in the present invention, the image data that there is Pin needle one side by obtaining pcb board
Afterwards, the location information that Pin needle is obtained according to image data acquisition obtains the preliminary height of Pin needle further according to the location information of Pin needle
Information and reference altitude information calculate the reality of Pin needle finally by resulting preliminary elevation information and reference altitude information
Elevation information；It solves in the prior art since pcb board Pin needle pin increases, quickly and effectively Pin needle can not be detected to come
The technical issues of whether pcb board meets quality requirement determined, a kind of efficient, reliable pcb board Pin needle height detection is provided
Method.
Detailed description of the invention
Fig. 1 is a specific embodiment flow chart of pcb board Pin needle height detection method in the present invention；
Fig. 2 is the specific embodiment flow chart that the location information of Pin needle is obtained in the present invention；
Fig. 3 is a specific embodiment system block diagram of pcb board Pin needle height detecting system in the present invention；
Fig. 4 is a specific embodiment structural schematic diagram of pcb board Pin needle height detecting system in the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
As shown in figure 3, pcb board Pin needle height detecting system in the present invention comprising scanner with blue laser and
Computer；Wherein, the scanner with blue laser is used to scan the image data that pcb board to be detected has Pin needle one side, and
The image data is transmitted in computer, after computer receives image data, image data is analyzed and processed to obtain
The actual height information of pcb board Pin needle to be detected；It solves in the prior art since Pin needle pin excessively leads to testing staff
Workload increases and is easy to appear the detection incomplete technical problem of Pin needle.
Specifically, in the present embodiment, the scanner with blue laser, which gets pcb board to be detected, to be had referring to Fig. 2
The image data of Pin needle one side and after being transmitted to computer, computer reads the image data by Halcon software, according to setting
To obtain the preset range region of Pin needle, preset range region is border circular areas for fixed threshold value difference, the border circular areas it is straight
Diameter is 2 to 3 times of the Pin needle diameter, and the Pin needle is in the border circular areas.Obtain the preset range region laggard one of Pin needle
Step is analyzed to obtain the location information of Pin needle by Blob, scans according to the location information of Pin needle and with blue laser
The image data that instrument obtains can be obtained the preliminary elevation information of Pin needle on the location information, and be labeled as H1.Obtain Pin needle
Preset range region after, remove Pin needle preset range region outside be pcb board reference position region, at random from pcb board ginseng
Selection at least two reference position point in the band of position is examined, such as takes 2 points and this 2 points is learnt according to the image data of acquisition
Elevation information, be expressed as Hc1 and Hc2, then reference altitude information HC are as follows:At this point, it can be learnt that Pin needle
Actual height: H=H1-HC.
In addition, in the present embodiment, pcb board Pin needle height detecting system is specifically included: objective table 100, ball referring to Fig. 4
Feed screw apparatus 200, pcb board fixed device 300, horizontal support 520, readily removable fixing piece 600, swash with blue at longitudinal carrier 510
The scanner 700 and computer 800 of light；Wherein, objective table 100 is used to support the whole knot of pcb board Pin needle height detecting system
Structure (computer 800 can decide whether to be placed on objective table 100 according to actual needs)；The fixed device of pcb board for it is fixed to
Pcb board 400 is detected, so that it is not quasi- enough so as to cause the data information of acquisition that shaking will not be generated when detecting pcb board 400
Really；Readily removable fixing piece 600 to be set on horizontal support 520 for fixing longitudinal carrier 510 and horizontal support 520
Scanner 700 with blue laser is located at the 106mm right above pcb board 400 to be detected.By the way that pcb board is fixed device
300 are fixedly connected with the ball of ball-screw apparatus 200, so that ball-screw apparatus drives when detecting pcb board to be detected
The fixed device 300 of pcb board moves, and realizes the detection process of automation.Scanner with blue laser obtains pcb board to be detected
After image data with Pin needle one side, image data is transmitted to by computer 800 by data connecting line 900 and is handled.
Pcb board Pin needle height detecting system in summary, which solve pass through artificial detection pcb board in the prior art
Pin needle pin low efficiency, the insecure technical problem of testing result；Provide a kind of automation, high efficient and reliable pcb board
Pin needle height detecting system.
Referring to Figures 1 and 2, pcb board Pin needle height detection method is provided in the present embodiment comprising:
S01 obtains the image data that pcb board has Pin needle one side；
S02 is according to the location information of described image data acquisition Pin needle；
S03 obtains the preliminary elevation information and reference altitude information of Pin needle according to the positional information；
S04 obtains the actual height information of Pin needle according to the preliminary elevation information and the reference altitude information.
It is specific:
The image data for obtaining pcb board and there is Pin needle one side specifically: swept by the scanner with blue laser
The pcb board is retouched to obtain described image data.
The location information according to described image data acquisition Pin needle specifically includes:
Described image data are read using Halcon software, obtain the preset range region of Pin needle；
The location information is obtained by the preset range region that Blob analyzes the Pin needle.
The preliminary elevation information and reference altitude information of the Pin needle of acquisition according to the positional information specifically include:
The preliminary elevation information is obtained according to the positional information；
Obtain the pcb board reference position region other than the preset range region of the Pin needle；
The reference position point for randomly choosing pcb board reference position region described at least two, obtains the reference position point pair
The elevation information answered；
Average height information, that is, the reference altitude information obtained according to the corresponding elevation information of the reference position point.
The Principle of Process that the above method is realized can be cross-referenced corresponding with above-mentioned pcb board Pin needle height detecting system, herein
It does not do and excessively repeats.
By above-mentioned pcb board Pin needle height detection method, solve in the prior art since pcb board Pin needle pin increases
It is more, quickly and effectively Pin needle can not be detected the technical issues of whether pcb board meets quality requirement determined, be provided
A kind of efficient, reliable pcb board Pin needle height detection method.
It is to be illustrated to preferable implementation of the invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (8)
1.PCB plate Pin needle height detection method characterized by comprising
Obtain the image data that pcb board has Pin needle one side；
According to the location information of described image data acquisition Pin needle；
The preliminary elevation information and reference altitude information of Pin needle are obtained according to the positional information；
The actual height information of Pin needle is obtained according to the preliminary elevation information and the reference altitude information.
2. pcb board Pin needle height detection method according to claim 1, which is characterized in that the acquisition pcb board has
The image data of Pin needle one side specifically: by pcb board described in the scanner scanning with blue laser to obtain the figure
As data.
3. pcb board Pin needle height detection method according to claim 2, which is characterized in that described according to described image number
It is specifically included according to the location information for obtaining Pin needle:
Described image data are read using Halcon software, obtain the preset range region of Pin needle；
The location information is obtained by the preset range region that Blob analyzes the Pin needle.
4. pcb board Pin needle height detection method according to claim 3, which is characterized in that described to be believed according to the position
Breath obtains the preliminary elevation information of Pin needle and reference altitude information specifically includes:
The preliminary elevation information is obtained according to the positional information；
Obtain the pcb board reference position region other than the preset range region of the Pin needle；
The reference position point for randomly choosing pcb board reference position region described at least two, it is corresponding to obtain the reference position point
Elevation information；
Average height information, that is, the reference altitude information obtained according to the corresponding elevation information of the reference position point.
5.PCB plate Pin needle height detecting system characterized by comprising
Scanner with blue laser, the image data that there is Pin needle one side for obtaining pcb board to be detected；
Computer, for receiving and processing the actual height letter for obtaining the pcb board Pin needle to be detected after described image data
Breath.
6. pcb board Pin needle height detecting system according to claim 5, which is characterized in that the pcb board Pin needle height
Detection system further includes the fixed device of pcb board, and the fixed device of the pcb board is for fixing the pcb board to be detected.
7. pcb board Pin needle height detecting system according to claim 6, which is characterized in that the pcb board Pin needle height
Detection system further includes fixed frame and ball-screw apparatus, the ball of the pcb board fixed device and the ball-screw apparatus
It is fixedly connected；The fixed frame includes longitudinal carrier and horizontal support, and the horizontal support is set to the fixed device of the pcb board
Surface and parallel with the fixed device of the pcb board, the longitudinal carrier and the horizontal support are connected by readily removable fixing piece
It connects, the scanner with blue laser is installed on the horizontal support.
8. pcb board Pin needle height detecting system according to claim 7, which is characterized in that described with blue laser
Scanner is set at the 106mm right above the pcb board to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590217.5A CN110455199A (en) | 2019-07-02 | 2019-07-02 | Pcb board Pin needle height detection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910590217.5A CN110455199A (en) | 2019-07-02 | 2019-07-02 | Pcb board Pin needle height detection method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110455199A true CN110455199A (en) | 2019-11-15 |
Family
ID=68482047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910590217.5A Pending CN110455199A (en) | 2019-07-02 | 2019-07-02 | Pcb board Pin needle height detection method and system |
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| CN107941173A (en) * | 2017-12-26 | 2018-04-20 | 宁波金测自动化科技有限公司 | A kind of 3DPIN pins flatness detection technique |
| CN207487553U (en) * | 2017-12-04 | 2018-06-12 | 丹阳奇烨科技有限公司 | A kind of pcb board stitch height detecting device |
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| CN208419894U (en) * | 2018-07-03 | 2019-01-22 | 精华电子(苏州)有限公司 | PIN needle height detecting system |
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| CN109813727A (en) * | 2018-12-25 | 2019-05-28 | 苏州江奥光电科技有限公司 | A kind of pcb board weld defects detection method based on depth information |
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2019
- 2019-07-02 CN CN201910590217.5A patent/CN110455199A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333869A (en) * | 1999-01-18 | 2002-01-30 | 麦戴塔自动控制股份公司 | Method and device for inspecting objects |
| CN104807406A (en) * | 2014-01-27 | 2015-07-29 | 康耐视公司 | System and method for determining 3d surface features and irregularities on an object |
| CN205482826U (en) * | 2016-01-25 | 2016-08-17 | 深圳市昇创多维视觉科技有限公司 | Portable blue light spatial digitizer |
| CN207487553U (en) * | 2017-12-04 | 2018-06-12 | 丹阳奇烨科技有限公司 | A kind of pcb board stitch height detecting device |
| CN107941173A (en) * | 2017-12-26 | 2018-04-20 | 宁波金测自动化科技有限公司 | A kind of 3DPIN pins flatness detection technique |
| CN108534684A (en) * | 2018-03-08 | 2018-09-14 | 上海第二工业大学 | A kind of Size Measuring System and its measurement method based on Lab VIEW development platforms |
| CN208419894U (en) * | 2018-07-03 | 2019-01-22 | 精华电子(苏州)有限公司 | PIN needle height detecting system |
| CN109813727A (en) * | 2018-12-25 | 2019-05-28 | 苏州江奥光电科技有限公司 | A kind of pcb board weld defects detection method based on depth information |
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Application publication date: 20191115 |
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