CN103507108B - Perforating positioning apparatus and perforate localization method - Google Patents
Perforating positioning apparatus and perforate localization method Download PDFInfo
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- CN103507108B CN103507108B CN201310240030.5A CN201310240030A CN103507108B CN 103507108 B CN103507108 B CN 103507108B CN 201310240030 A CN201310240030 A CN 201310240030A CN 103507108 B CN103507108 B CN 103507108B
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Abstract
Perforating positioning apparatus of the present invention comprises: image pickup part, takes the image comprising additional mark on a printed circuit; The location determination obtaining the image of differential value, the differential value obtained at the brightness value use differential filter for image exceedes appointment threshold value, is the marginal position of mark by detection unit; Storage part, stores the coordinate representing marginal position respectively; Configuration part, centered by marginal position, setting comprises the region of the pixel count of specifying; Comparing section, compares the center brightness value in set region and average brightness value; Colored portion, when center brightness value is less than average brightness value, the color of the center in this region is enclosed the 1st color, when center brightness value is more than average brightness value, the color of the center in this region is enclosed the 2nd color, and the color in the region do not set is enclosed the 2nd color; And determination section, the region of enclosing the 1st color is determined the precalculated position for offering guide hole.
Description
Technical field
The present invention relates to a kind of perforating positioning apparatus and perforate localization method.
Background technology
When making circuit substrate (printed circuit board (PCB)), carry out following method, that is, after multiple circuit pattern is printed for 1 large-area substrate, cut off (separation) and become each circuit pattern, obtain multiple circuit substrate.When carrying out this cut-out, at least 1 pair of guide hole being arranged for circuit substrate, the insertion of this guide hole being fixed on the pilot pin etc. being arranged on processing unit (plant) and positioning, and cutting off successively.Therefore, guide hole becomes the basis of the off-position of decision-making circuit pattern, must be formed in correct position.
As the boring device forming this guide hole, use following boring device, namely, when printed circuit pattern, also printing simultaneously represents the mark of position of opening in advance, be arranged on that the X-ray video camera of boring device etc. is taken this mark and the image that obtains carries out image procossing to utilizing, perforate is carried out in the position of mark drill being moved to obtain by image procossing.An example of this kind of boring device is disclosed in patent document 1.
Mark on printed circuit board (PCB) is the core such as making glass epoxy resin be impregnated in glass fibre, and only when the one side of the resin component being formed as tabular pastes the printed circuit board (PCB) of Copper Foil, the mode remaining circular shape with this Copper Foil carries out etching and is formed.If via the X-ray of X-ray cameras observe through the printed circuit board (PCB) forming this kind of mark, the resin component that so transmitance of X-ray is high is taken whiter, and the mark that the transmitance of X-ray is low is taken more black.
When forming guide hole for mark, after an image is acquired, obtaining the brightness value of each imaging apparatus of X-ray video camera, based on appointment threshold value obtained brightness value being divided and electing as white or black, making image binaryzation.Next, in the image of binaryzation, become black part and marginal portion by leucismus by detecting, and the profile of specific markers, determine the coordinate forming guide hole according to the profile specifically marked, and offer guide hole in this position.
[background technology document]
[patent document]
[patent document 1] Japanese Patent Laid-Open 9-57695 publication
Summary of the invention
[inventing problem to be solved]
Glass fibre as the main raw material(s) of the resin component of printed circuit board (PCB) is not evenly distributed in whole of printed circuit board (PCB).Therefore, according to the position of printed circuit board (PCB) is different, the transmitance of X-ray is different.And there is respective speed in the imaging apparatus of X-ray video camera.According to these main causes, even if for such as only carrying out to resin component the image taking gained, its brightness is also different according to position difference.
Such as, resin component is taken whiter substantially, and its brightness value gets various value.That is, though get this value of brightness value 255 in a certain position, get this value of brightness value 250 etc. in different positions, its brightness value is various according to position difference.About mark, also produce the identical phenomenon that brightness value changes according to position is different.
The profile of the mark in captured image and the contrast differences of printed circuit board (PCB) large, the difference of this kind of brightness value removes by suitably setting threshold value, therefore can the profile of positively specific markers.Therefore, be able to offer guide hole in correct position.
But, as shown in Fig. 3 (a) and (b), there is gradient in the brightness of integral image, and in the different situation of the contrast differences of the resin component of captured mark and printed circuit board (PCB), be difficult to determine the threshold value based on brightness value.In such cases, owing to being difficult to the specific marginal portion becoming the profile of mark, the situation that the positional precision that therefore there is the processing coordinate of the guide hole determined by image procossing is deteriorated.Or, exist due to cannot Edge detected part and cannot the profile of specific markers, therefore become the situation of mistake.
As mentioned above, exist as in the past for the situation that captured image setting cannot be tackled based on the method for the threshold value of brightness value.Therefore, requirement suitably can determine the new skill of position printed circuit board (PCB) being offered to guide hole.
The present invention completes in view of above-mentioned aspect, and object is to provide a kind of perforating positioning apparatus and the perforate localization method that suitably can determine to offer printed circuit board (PCB) the position of guide hole.
[technological means of dealing with problems]
In order to reach described object, the feature of the perforating positioning apparatus of the 1st viewpoint of the present invention is to comprise:
Image pickup part, takes comprising the image be attached to printed circuit board (PCB) offers the mark in the precalculated position of guide hole;
Detection unit, obtain the brightness value of the image taken by described image pickup part, the differential value obtained when using differential filter for the brightness value obtained exceedes appointment threshold value, be the marginal position of described mark by the location determination obtaining the image of described differential value;
Storage part, stores the coordinate representing the marginal position that described detection unit determines respectively;
Configuration part, for all marginal positions that described storage part stores, centered by each marginal position, setting comprises the region of the pixel count of specifying;
Comparing section, for the regional set by described configuration part, obtains the center brightness value of the center in region and the average brightness value in region, and calculated center brightness value and average brightness value is compared;
Colored portion, compare by described comparing section, result, when described center brightness value is less than described average brightness value, the color of the center in described region is enclosed the 1st color, when described center brightness value is more than described average brightness value, the color of the center in described region is enclosed the 2nd color, and the color in the region do not set by described configuration part is enclosed described 2nd color; And
Determination section, determines the precalculated position for offering described guide hole by the region of being enclosed the 1st color by described colored portion.
The spectral discrimination taken by described image pickup part can, when described differential value does not exceed described appointment threshold value, be also unclear image by described detection unit.
The region comprising described pixel count of specifying also can be the region comprising 5 × 5 pixels.
Described detection unit also can judge the color with the neighboring region of the area adjacency being enclosed the 2nd color by described colored portion, when the color in all of its neighbor region determined is described 1st color, described appointment threshold value is reduced.
Described 1st color also can be black, and described 2nd color also can be white.
Described differential filter also can be Sobel wave filter (Sobelfilter).
The feature of the perforate localization method of the 2nd viewpoint of the present invention is to comprise:
Image pickup step, takes comprising the image be attached to printed circuit board (PCB) offers the mark in the precalculated position of guide hole;
Determination step, obtain the brightness value of the image taken by described image pickup step, the differential value obtained when using differential filter for the brightness value obtained exceedes appointment threshold value, be the marginal position of described mark by the location determination obtaining the image of described differential value;
Storing step, stores the coordinate representing the marginal position determined by described determination step respectively;
Setting procedure, for all marginal positions stored by described storing step, centered by each marginal position, setting comprises the region of the pixel count of specifying;
Comparison step, for the regional set by described setting procedure, obtains the center brightness value of the center in region and the average brightness value in region, and calculated center brightness value and average brightness value is compared;
Tinting steps, compare by described comparison step, result, when described center brightness value is less than described average brightness value, the color of the center in described region is enclosed the 1st color, when described center brightness value is more than described average brightness value, the color of the center in described region is enclosed the 2nd color, and the color in the region do not set by described setting procedure is enclosed described 2nd color; And
Deciding step, determines the precalculated position for offering described guide hole by the region of enclosing the 1st color by described tinting steps.
[effect of invention]
According to the present invention, position printed circuit board (PCB) being offered to guide hole suitably can be determined.
Accompanying drawing explanation
Fig. 1 (a) is the plane of the major part of the perforating positioning apparatus of embodiments of the present invention, and (b) is the sectional view on the I-I line of (a).
Fig. 2 is the functional block diagram of control part.
Fig. 3 (a) is the image of the mark comprised captured by image pickup part, b () represents the figure by the brightness value (brightness step) on the A-A' line of the coordinate Y1 in the image of (a), (c) is the figure of the differential value of the brightness value use differential filter gained represented for (b).
Fig. 4 is the figure of the colorize method in region when illustrating that center brightness value is less than average brightness value.
Fig. 5 is the figure of the colorize method in region when illustrating that center brightness value is more than average brightness value.
Fig. 6 (a) represents the figure comprised by the image of the mark of X-ray shot by camera, and (b) is the figure representing the image (a) being carried out to image procossing gained.
Fig. 7 is the flow chart in order to the action determining position of opening to be described.
Fig. 8 (a) is the image that the luminance difference of the mark comprised captured by image pickup part is few, b () represents the figure by the brightness value (brightness step) on the A-A' line of the coordinate Y1 in the image of (a), (c) is the figure of the differential value of the brightness value use differential filter gained represented for (b).
Fig. 9 be represent certification mark marginal position and change the figure of threshold value.
Figure 10 is the figure of the variation that colorize method is described.
[explanation of symbol]
10 perforating positioning apparatus
11 workbench
11a processing region
11b transports path
12R, 12LX radiation exposure source
13R, 13LX ray imaging machine
14R, 14L perforate drill
15 substrate detecting sensors
16 control parts
17
18 move into mouth
101 printed circuit board (PCB)s
161 image pickup parts
162 detection units
163 storage parts
164 configuration parts
165 comparing sections
166 colored portion
167 determination sections
200 images
201 marks
202 edges
B1, b2 right-hand member lateral edges scope
XL1, XL2 left end side edge
XR1, XR2 right-hand member lateral edges
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.
The perforating positioning apparatus 10 of present embodiment be as in Fig. 1 (a) with in plane, Fig. 1 (b) with shown in the sectional view on I-I line, comprise workbench 11, a pair x-ray bombardment source 12R, 12L, a pair X-ray video camera 13R, 13L, a pair perforate drill 14R, 14L, substrate detecting sensor 15 and control part 16.
Workbench 11 is substantially horizontally configured on platform 17.Workbench 11 comprises: processing region 11a, in order to load the printed circuit board (PCB) 101 of handling object, and carry out irradiation and the perforate operation of X-ray; And conveyance path 11b, in order to load the printed circuit board (PCB) 101 of handling object, and conveyance is to processing region 11a.Printed circuit board (PCB) 101 be to Fig. 1 Y direction conveyance and take out of.
A pair x-ray bombardment source 12R, 12L are configured on the upside of workbench 11 respectively.X-ray bombardment source 12R, 12L are according to the control of control part 16, and produce X-ray, (printed circuit board (PCB) 101 on workbench 11) irradiates downwards.
A pair X-ray video camera 13R, 13L are respectively according to the control of control part 16, receive self-corresponding x-ray bombardment source 12R, 12L to irradiate and the X-ray of printed circuit board (PCB) 101 through handling object, the image that the position alignment on printed circuit board (PCB) 101 marks is taken.
A pair perforate drill 14R, 14L according to the control of control part 16, utilize cylinder etc. along the vertical direction (Z-direction) mobile, rotate, in the assigned address perforate of printed circuit board (PCB) 101 by motor etc.
X-ray bombardment source 12R, X-ray video camera 13R and perforate drill 14R are configured to utilize XY platform etc. to move to X-direction and Y direction as one group.Similarly, x-ray bombardment source 12L, X-ray video camera 13L and perforate drill 14L are configured to utilize XY platform etc. to move to X-direction and Y direction as one group.
Substrate detecting sensor 15 comprises optical sensor, microswitch etc., and detects the printed circuit board (PCB) 101 along conveyance path 11b conveyance, sends detection signal to control part 16.
Control part 16 comprises CPU(CentralProcessingUnit, central processing unit) (central processing unit), storage device etc., and carry out action according to the control program being stored in storage device, control each portion.As shown in Figure 2, control part 16 plays function as image pickup part 161, detection unit 162, storage part 163, configuration part 164, comparing section 165, colored portion 166, determination section 167.Next, the function in each portion is described.
Image pickup part 161 1 receives the detection signal sent from substrate detecting sensor 15, just control a pair x-ray bombardment source 12R, 12L, a pair X-ray video camera 13R, 13L, as shown in Fig. 3 (a), the image 200 comprising the position alignment mark 201 be attached in advance on printed circuit board (PCB) 101 is taken.Position alignment mark 201 is for determining position printed circuit board (PCB) 101 being offered to guide hole.Based on the position with the mark 201 captured by image pickup part 161, following process is utilized to determine to offer the position of guide hole.And herein, as mentioned above, mark 201 is only pasting in the printed circuit board (PCB) 101 of Copper Foil in the one side of the resin component being formed as tabular, and the mode remaining circular shape with Copper Foil carries out etching being formed.Therefore, if utilize X-ray video camera to take this mark 201, so resin component is taken whiter, and mark 201 is taken more black.
Detection unit 162 obtains the brightness value (brightness step) of the image 200 of the mark 201 taken by image pickup part 161, whether the differential value obtained based on using differential filter for brightness value (brightness step) exceedes appointment threshold value, and process decision chart is as the edge 202 of the mark 201 on 200.Herein, differential filter is such as any wave filter at the edges 202 for extracting mark out such as Sobel wave filter, Pu Ruiweite wave filter (Prewittfilter), Laplace filter (Laplacianfilter).And, specify threshold value to change according to used differential filter or differential value, and be any.And the edge of described mark, refers to edge, the boundary position of the mark 201 on image 200.Specifically, detection unit 162 scan image 200 obtains brightness value, result, such as, on the A-A' line of the coordinate Y1 of the Y-direction by image 200, obtain the distribution map as the brightness value of Fig. 3 (b).
If the brightness value for image 200 uses differential filter and obtains differential value, on the A-A' line such as by the coordinate Y1 of the Y-direction of image 200, so obtain result as shown in Figure 3 (c).Next, whether detection unit 162 process decision chart exceedes appointment threshold value as the differential value in each pixel of 200.And when differential value exceedes appointment threshold value, as shown in Figure 3 (c), the location determination obtaining the pixel of differential value is the position at the edge 202 of mark 201 by detection unit 162.
When Fig. 3 (c), the pixel be in the scope of left end side edge XL1 to left end side edge XL2 in mark 201 is detected as edge 202, and the pixel be in the scope of right-hand member lateral edges XR1 to right-hand member lateral edges XR2 is detected as edge 202.Therefore, detection unit 162 will be in from coordinate (XL1, Y1) to (XL2, the coordinate of all pixels Y1) in scope and be in from (XR1, Y1) to the coordinate of all pixels in (XR2, Y1) scope as the coordinate at the edge 202 on A-A' line, and store this value.
In fig. 3 (c), the right-hand member lateral edges scope b1 will be set to the scope of left end side edge XL2 from left end side edge XL1 on A-A' line.And, by the right-hand member lateral edges scope b2 be set to the scope of right-hand member lateral edges XR2 from right-hand member lateral edges XR1 on A-A' line.
In addition, when differential value does not exceed appointment threshold value, detection unit 162, using obtaining the position of the pixel of differential value as unclear picture position in image 200, is judged to be mistake.
Storage part 163, in the process of scan image 200, stores the coordinate that all expression detection units 162 are judged to be the pixel at the edge 202 of mark 201.
Control part 16, only to be present in the pixel of the coordinate representing the edge 202 that storage part 163 stores in image 200 for object, is implemented to adapt to binary conversion treatment.Such as only implement to adapt to binary conversion treatment to be present in pixel in edge extent b1 and edge extent b2 for object on the A-A' line shown in Fig. 3 (c).
Specifically, first, configuration part 164 sets the region such as comprising 5 × 5 pixels centered by the pixel (be called and gaze at pixel) being present in the coordinate (XL1, Y1) of the left end side edge XL1 represented on A-A' line.
Next, comparing section 165 is obtained the brightness value (center brightness value) gazing at pixel of the center being positioned at region and is obtained average brightness value (average brightness value) according to the brightness value of each pixel of forming region.Herein, described center brightness value, refers to the brightness value (gazing at the brightness value of pixel) of the pixel at the center in the region comprising multiple pixel.And described average brightness value, refers to the value of the gained that to be averaged by the brightness value of each pixel comprised in the region of multiple pixel.And when processing as 1 pixel 8 bit (1 byte), the brightness value of black becomes 0, the brightness value of white becomes 255.As shown in Figure 4, when region comprises 5 × 5 pixel, the brightness value of the pixel at the center being positioned at 5 × 5 pixels is obtained as center brightness value in configuration part 164, obtains the value of the gained that to be averaged by the brightness value of 25 each pixels as average brightness value.And comparing section 165 by center brightness value and average brightness value being compared in each region, and obtains the magnitude relationship of center brightness value and average brightness value.
Colored portion 166 compares by comparing section 165, result, as shown in Figure 4, be less than average brightness value (85=(255 × 5+80 × 5+50 × 5+20 × 10)/25 in center brightness value (50)), the color of center brightness value is set as the 1st color (such as black).And, as shown in Figure 5, colored portion 166 is average brightness value (144.8=(255 × 10+150 × 5+50 × 4+20 × 6)/25 in center brightness value (150)) more than, the color of center brightness value is set as the 2nd color (such as white).
Next, control part 16 determines as having carried out adapting to the adjacent pixel of the coordinate (XL1, Y1) of binary conversion treatment as newly gazing at pixel with this in edge extent b1, and gazes at centered by pixel by this, sets the region such as comprising 5 × 5 pixels.And control part 16 uses comparing section 165, based on the result new center brightness value and new average brightness value being compared gained, the color of pixel is newly gazed in setting.
Control part 16 carries out identical process to all pixels be in edge extent b1 until till arriving the coordinate (XL2, the Y1) of+X side of edge extent b1.When control part 16 is judged as terminating for the adaptation binary conversion treatment of all pixels in edge extent b1, terminates the adaptation binary conversion treatment for edge extent b1, start the adaptation binary conversion treatment for edge extent b2.
So, control part 16 implements described adaptation binary conversion treatment for all edge extent of the coordinate at the edge 202 stored based on storage part 163.
And the color in the region beyond the edge extent that storage part 163 stores by colored portion 166 encloses the 2nd color.Colored portion 166 encloses the 1st color by the color in the edge extent at the edge 202 by comprising mark 201, the color except this region is enclosed the 2nd color, and changes the color of the image 200 of attach mark 201.As shown in Figure 6 (b), the image 200 of color through changing forms the ring-type of hollow.
The image 200 of the color of determination section 167 according to Fig. 6 (b) through changing, specific position of enclosing the mark 201 of the 1st color, determines the position for offering guide hole by the position of this mark 201.
Next, to having described formation, the action of perforating positioning apparatus 10 of function is described.
When carrying out perforate to printed circuit board (PCB) 101, as shown in Figure 1, printed circuit board (PCB) 101 is placed on workbench 11 by operating personnel, such as, transported to Y direction by printed circuit board (PCB) 101 along conveyance path 11b with handwork, certainly move into mouth 18 and be inserted in processing region 11a.
Printed circuit board (PCB) 101 1 arrives in substrate detecting sensor 15, and detection signal is just sent to control part 16 by substrate detecting sensor 15.Control part 16 responds detection signal, starts the process shown in Fig. 7.
First, the control part 16 playing function as image pickup part 161 connects x-ray bombardment source 12R, 12L, X-ray video camera 13R, 13L, as shown in Fig. 3 (a), the image 200 of the printed circuit board (PCB) 101 with the position alignment mark 201 for offering guide hole is taken (step S101).
Then, operating personnel carries out the position alignment roughly of printed circuit board (PCB) 101.In this stage, as mentioned above, utilize the process of control part 16, x-ray bombardment source 12R and 12L produces X-ray, and X-ray video camera 13R and 13L obtain respectively printed circuit board (PCB) 101 through image.Control part 16 by the display of the acquisition image of X-ray video camera 13R and 13L on a monitor.
Operating personnel's one side observes the display of monitor, and (Y direction), transverse direction (X-direction) move forwards, backwards simultaneously to make printed circuit board (PCB) 101 in the modes making position alignment mark 201 be positioned at the center of such as monitor.
Control part 16 1 detects that position alignment mark 201 is positioned at the approximate centre of monitor and stops, and will utilize not shown extruder member, and printed circuit board (PCB) 101 extruding is fixed on workbench 11.
Next, the control part 16 playing function as detection unit 162 scans captured image 200, as shown in Figure 3 (b), obtain the brightness value (brightness step of each scan line) of each pixel of image 200, and by using differential filter for brightness value (brightness step) and obtain the differential value (step S102) in each pixel.And control part 16 determines whether the differential value (step S103) having obtained all pixels.
(the step S103 when not judging the differential value of all pixels; No), as shown in Figure 3 (c), control part 16 judges whether calculated differential value exceedes appointment threshold value (step S104).Control part 16 by judging whether differential value exceedes appointment threshold value, and obtains the position of the pixel of differential value in specific image 200.
(the step S104 when differential value exceedes appointment threshold value; Yes), the edge 202(step S105 that the location determination (specific) of the pixel corresponding with calculated differential value is the mark 201 on image 200 by control part 16), continue the scanning of image 200, obtain the differential value (step S102) of other pixels.
(the step S104 when differential value does not exceed appointment threshold value; No), the location determination (specific) of the pixel corresponding with calculated differential value is the unclear picture position (step S106) on image 200 by control part 16, continues the scanning of image 200, obtains the differential value (step S102) of other pixels.Control part 16 is by repeating the process of step S102 ~ S106, and the differential value of all pixels for image 200, determine whether to exceed appointment threshold value.
(the step S103 when judging the differential value of all pixels; Yes), the control part 16 playing function as storage part 163 is stored in the coordinate (step S107) at all edges 202 in step S105 on specific image 200.
Then, as shown in Figure 3,4, the control part 16 playing function as configuration part 164 is that the pixel at edge 202 using being arranged in the coordinate storing image 200 carries out adaptation binary conversion treatment as gazing at pixel, and sets the region (step S108) comprised to gaze at 5 × 5 pixels centered by pixel.Such as, control part 16 sets all pixels of comprising in the edge extent b1 be present on the A-A' line shown in Fig. 3 (c) and is present in the region of 5 × 5 pixels centered by all pixels in edge extent b2.
Then, the control part 16 playing function as comparing section 165 obtains the average brightness value (step S109) gazing at the center brightness value of pixel and each pixel of forming region at the center being positioned at region.Then, control part 16, in each region, judges center brightness value whether as more than average brightness value (step S110).Control part 16 obtains the magnitude relationship of center brightness value and average brightness value by each region only for the edge 202 comprising mark 201, and carries out adaptation binary conversion treatment.By being defined in edge 202 as mark 201 and specific pixel using carrying out adapting to the scope of binary conversion treatment, the burden of image procossing can being alleviated, shorten image processing time.
When be judged to be center brightness value for more than average brightness value, namely center brightness value is less than average brightness value (step S110; No), the color (center brightness value) gazing at pixel is set as the 1st color (step S111) by the control part 16 playing function as colored portion 166.Specifically, as shown in Figure 4, such as when center brightness value be 50, average brightness value is 85(=(255 × 5+80 × 5+50 × 5+20 × 10)/25), center brightness value is less than average brightness value.In this case, the brightness value 50 gazing at pixel at the center becoming 5 × 5 pixels of the magnitude relationship judging brightness value is set as the 1st color (such as black (brightness value 0)) by control part 16.
(the step S110 when being judged to be that center brightness value is more than average brightness value; Yes), the color (center brightness value) gazing at pixel is set as the 2nd color by control part 16.(step S112).Specifically, as shown in Figure 5, such as when center brightness value be 150, average brightness value is 144.8(=(255 × 10+150 × 5+50 × 4+20 × 6)/25), center brightness value is more than average brightness value.In this case, the brightness value 150 gazing at pixel at the center becoming 5 × 5 pixels of the magnitude relationship judging brightness value is set as the 2nd color (such as white (brightness value 255)) by control part 16.
Next, control part 16, for all pixels stored as edge 202 in step s 107, determines whether the magnitude relationship (step S113) that determined center brightness value and average brightness value.
(the step S113 when not judging the magnitude relationship of center brightness value and average brightness value using all pixels stored as edge 202; No), control part 16, for the pixel not judging magnitude relationship, judges center brightness value whether as more than average brightness value (step S110).Control part 16 by repeating the process of step S110 ~ S113, and for all pixels stored as edge 202 in step s 107, judges the magnitude relationship of center brightness value and average brightness value.
(the step S113 when judging the magnitude relationship of center brightness value and average brightness value using all pixels stored as edge 202; Yes), the pixel not containing edge 202, the color of all pixels that namely do not store as edge 202 and do not set in step S108 are in step s 107 enclosed the 2nd color (step S114) by control part 16.
And, the control part 16 of function is played according to the image 200 being included in attached the colorful one mark 201 in step S111, S112, S114 as determination section 167, specific region of enclosing the 1st color, according to specific result, the specific coordinate in this region is determined the position of opening (step S115) for offering guide hole.
If utilize described process to determine the position of opening of guide hole, so control part 16 makes perforate drill 14R, 14L move to X-direction and Y direction, position of opening is carried out to the position alignment of perforate drill 14R, 14L.The position alignment one of perforate drill 14R, 14L terminates, and control part 16 just makes perforate drill 14R, 14L one side rotate one side decline, offers guide hole to printed circuit board (PCB) 101.
Perforate one terminates, and control part 16 just makes perforate drill 14R, 14L stop after rising, after the post processing such as mensuration carrying out position of opening, removes the extruding of extruder member, and then, disconnect x-ray bombardment source 12R, 12L, X-ray video camera 13R, 13L.
As described above, perforating positioning apparatus 10 according to the present embodiment, can the specific position being attached to the position alignment mark 201 of printed circuit board (PCB) 101 in advance exactly.And, by carrying out adaptation binaryzation to the region comprising edge 202, even and if little and in different situation in the contrast differences of image 200, also can the position of specific markers 201.And, by only to being judged to be that the pixel at edge 202 carries out adaptation binary conversion treatment, and the burden of image procossing can be alleviated, shortening the time of carrying out image procossing.
In addition, the present invention is not limited to described embodiment, can carry out various change and application.
As shown in Fig. 8 (a) ~ (c), due to brightness value (brightness step) with low uncertainty of image 200, therefore there is differential value and do not exceed the situation of specifying threshold value.In such cases, as shown in Figure 9, detection unit 162, also can the edge 202 of marker for determination 201 by automatically threshold value being modified to less there is the mode that exceedes the differential value of threshold value based on the maximum of the differential value of edge extent b1 and edge extent b2.
And, as shown in Figure 10, when being present in the pixel in edge extent and all pixels adjacent with the pixel of enclosing the 2nd color (white) enclose the 1st color (black), the pixel shader that this also can be enclosed the 2nd color (white) by colored portion 166 will be the 1st color (black).When taking printed circuit board (PCB) 101, due to mark 201 is taken into black, the pixel be therefore present in edge extent should enclose the 1st color.But, when captured image 200 comprises noise, there is comparing section 165 and carry out misinterpretation, enclose the situation of the color of mistake.Therefore, colored portion 166 when for be present in pixel in edge extent and be black with the color in all of its neighbor region of the area adjacency enclosing white, the color also this can being enclosed the region of white encloses black.Now, detection unit 162 judges the color with the neighboring region of the area adjacency being enclosed white by colored portion 166.And detection unit 162, when the color in adjacent all of its neighbor region is black, as shown in Figure 9, also can make appointment threshold value reduce.
When detection unit 162 mistake is judged to be unclear picture position in image 200, image pickup part 161 also can be taken the image of the position judged by mistake again.And control part 16 also can carry out to operating personnel the warning that purport is unclear image.And detection unit 162 also can make appointment threshold value reduce, judge whether differential value exceedes the appointment threshold value through reducing.
Region set by configuration part 164 is not limited to the region comprising 5 × 5 pixels, as long as the region (such as comprise the region of 3 × 5 pixels, comprise the region etc. of 3 × 10 pixels) for obtaining center brightness value and average brightness value, then can be arbitrarily.
Center brightness value is not limited to the brightness value of the pixel at the center being positioned at region, and comprises the mean value etc. of brightness value of the brightness value of the pixel of the immediate vicinity being positioned at region, multiple pixels of immediate vicinity widely.And average brightness value is not limited to the addition mean value of the brightness value of each pixel, and comprises be multiplied mean value, harmonic-mean etc. widely.
As long as the 1st color, the 2nd color are mutually different colors, be then not limited to black, white, can be arbitrarily.
And the X-ray in this description is not limited to the X-ray (wavelength is the electromagnetic wave of 1pm-10nm degree) on ordinary meaning, and comprises the harmful electromagnetic wave radioactive ray such as gamma-rays, alpha ray, β ray widely.And, also can be visible ray.
Described formation, except perforating positioning apparatus, also can be widely used in using X-ray to carry out the device of any process (carry out taking, irradiation energy, analyze).
In addition, the program performed in said embodiment also can store and be distributed in floppy disk, CD-ROM (CompactDiscRead-OnlyMemory, read-only optical disc), DVD(DigitalVideoDisc, digital video disk), MO(Magneto-OpticalDisc, magneto-optic disk) etc. embodied on computer readable recording medium in, and by installing this program, perform described process.
And, also program can be stored in the disk set that the server unit of specifying on the communication networks such as internet has etc., such as, obtain overlappingly with conveyance ripple.
Above, be preferred embodiment illustrated of the present invention, but the present invention is not limited thereto kind of a specific embodiment, comprises the scope of invention and the equalization thereof recorded in claims in the present invention.
In addition, the present invention can realize various embodiment and distortion in the spirit not departing from broad sense of the present invention and scope.And, described embodiment be illustrate of the present invention, and non-limiting scope of the present invention.That is, scope of the present invention is represented by claim but not is represented by embodiment.And, the various distortion implemented in claim and in the scope of the meaning of the invention equal with it are considered as in scope of the present invention.
The present invention is No. 2012-143201, the Japanese patent application case based on filing an application on June 26th, 2012.The description of No. 2012-143201, Japanese patent application case, claim, all accompanying drawing are incorporated in this description as reference.
Claims (7)
1. a perforating positioning apparatus, comprising:
Image pickup part, takes comprising the image be attached to printed circuit board (PCB) offers the mark in the precalculated position of guide hole;
Storage part, stores the coordinate of the marginal position representing described mark respectively;
Configuration part, for all marginal positions that described storage part stores, centered by each marginal position, setting comprises the region of the pixel count of specifying; With
Determination section, determines the precalculated position offering described guide hole;
It is characterized in that, described perforating positioning apparatus comprises further:
Detection unit, obtain the brightness value of the image taken by described image pickup part, the differential value obtained when using differential filter for the brightness value obtained exceedes appointment threshold value, be the marginal position of described mark by the location determination obtaining the image of described differential value;
Comparing section, for the regional set by described configuration part, obtains the center brightness value of the center in region and the average brightness value in region, and calculated center brightness value and average brightness value is compared; And
Colored portion, compare by described comparing section, result, when described center brightness value is less than described average brightness value, the color of the center in described region is enclosed the 1st color, when described center brightness value is more than described average brightness value, the color of the center in described region is enclosed the 2nd color, and the color in the region do not set by described configuration part is enclosed described 2nd color;
Wherein, the region of being enclosed the 1st color by described colored portion is determined the precalculated position for offering described guide hole by described determination section.
2. perforating positioning apparatus according to claim 1, is characterized in that:
Described detection unit is when described differential value does not exceed described appointment threshold value, is unclear image by the spectral discrimination taken by described image pickup part.
3. perforating positioning apparatus according to claim 1 and 2, is characterized in that:
Comprise the region of described pixel count of specifying for comprising the region of 5 × 5 pixels.
4. perforating positioning apparatus according to claim 1 and 2, is characterized in that:
Described detection unit judges, with the color of the neighboring region being enclosed the area adjacency of the 2nd color by described colored portion, when the color in all of its neighbor region determined is described 1st color, described appointment threshold value to be reduced.
5. perforating positioning apparatus according to claim 1 and 2, is characterized in that:
Described 1st color is black, and described 2nd color is white.
6. perforating positioning apparatus according to claim 1 and 2, is characterized in that:
Described differential filter is Sobel wave filter.
7. a perforate localization method, comprising:
Image pickup step, takes comprising the image be attached to printed circuit board (PCB) offers the mark in the precalculated position of guide hole;
Storing step, stores the coordinate of the marginal position representing described mark respectively;
Setting procedure, for all marginal positions stored by described storing step, centered by each marginal position, setting comprises the region of the pixel count of specifying; With
Deciding step, determines the precalculated position offering described guide hole;
It is characterized in that, described perforate localization method comprises further:
Determination step, obtain the brightness value of the image taken by described image pickup step, the differential value obtained when using differential filter for the brightness value obtained exceedes appointment threshold value, be the marginal position of described mark by the location determination obtaining the image of described differential value;
Comparison step, for the regional set by described setting procedure, obtains the center brightness value of the center in region and the average brightness value in region, and calculated center brightness value and average brightness value is compared; And
Tinting steps, compare by described comparison step, result, when described center brightness value is less than described average brightness value, the color of the center in described region is enclosed the 1st color, when described center brightness value is more than described average brightness value, the color of the center in described region is enclosed the 2nd color, and the color in the region do not set by described setting procedure is enclosed described 2nd color;
Wherein, the region of enclosing the 1st color by described tinting steps is determined the precalculated position for offering described guide hole by described deciding step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012143201A JP5908351B2 (en) | 2012-06-26 | 2012-06-26 | Drilling position determination device, drilling position determination method, and program |
| JP2012-143201 | 2012-06-26 |
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| Publication Number | Publication Date |
|---|---|
| CN103507108A CN103507108A (en) | 2014-01-15 |
| CN103507108B true CN103507108B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310240030.5A Active CN103507108B (en) | 2012-06-26 | 2013-06-17 | Perforating positioning apparatus and perforate localization method |
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| Country | Link |
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| JP (1) | JP5908351B2 (en) |
| CN (1) | CN103507108B (en) |
| TW (1) | TWI513384B (en) |
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| JP2019174288A (en) * | 2018-03-28 | 2019-10-10 | リコーエレメックス株式会社 | Inspection system |
| JP7126849B2 (en) * | 2018-04-13 | 2022-08-29 | 株式会社ディスコ | processing equipment |
| CN113894445B (en) * | 2021-12-09 | 2022-02-15 | 广东佛智芯微电子技术研究有限公司 | Chip surface punching method based on integration of optical detection and automatic correction |
| CN117415883B (en) * | 2023-12-18 | 2024-02-23 | 工业云制造(四川)创新中心有限公司 | Intelligent process decision optimization method in cloud manufacturing environment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375648A (en) * | 2006-01-30 | 2009-02-25 | 精工精密有限公司 | Boring method and boring device |
| JP4566883B2 (en) * | 2005-10-27 | 2010-10-20 | 王子製紙株式会社 | Jamming prevention device and jamming prevention method for flat cutter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2561166B2 (en) * | 1990-03-26 | 1996-12-04 | 株式会社精工舎 | Method and device for punching printed circuit board |
| JP2985045B2 (en) * | 1994-11-30 | 1999-11-29 | セイコープレシジョン株式会社 | Drilling method and X-ray drilling device using X-ray |
| JP3499080B2 (en) * | 1995-06-06 | 2004-02-23 | セイコープレシジョン株式会社 | Drilling apparatus for printed circuit board and drilling method using the same |
| JP3372419B2 (en) * | 1996-02-26 | 2003-02-04 | 松下電工株式会社 | Object recognition method |
| JP3689587B2 (en) * | 1999-04-16 | 2005-08-31 | 日本特殊陶業株式会社 | Printed wiring board |
| FR2802847B1 (en) * | 1999-12-24 | 2002-03-29 | Lectra Systemes Sa | TREATMENT SYSTEM WITH PROTECTION DEVICE FOR SECURE TREATMENT TABLE. |
| JP2003266384A (en) * | 2002-03-11 | 2003-09-24 | Kasai Kogyo Co Ltd | Piercing cutter |
| JP4165871B2 (en) * | 2002-03-15 | 2008-10-15 | キヤノン株式会社 | Position detection method, position detection apparatus, and exposure apparatus |
| AU2003280602A1 (en) * | 2002-10-30 | 2004-05-25 | Toppan Printing Co., Ltd. | Wiring pattern inspection device, inspection method, detection device, and detection method |
| JP4338405B2 (en) * | 2003-01-15 | 2009-10-07 | パナソニック株式会社 | Size measuring system and size measuring device |
-
2012
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-
2013
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4566883B2 (en) * | 2005-10-27 | 2010-10-20 | 王子製紙株式会社 | Jamming prevention device and jamming prevention method for flat cutter |
| CN101375648A (en) * | 2006-01-30 | 2009-02-25 | 精工精密有限公司 | Boring method and boring device |
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| Publication number | Publication date |
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| TW201401945A (en) | 2014-01-01 |
| CN103507108A (en) | 2014-01-15 |
| JP2014006803A (en) | 2014-01-16 |
| JP5908351B2 (en) | 2016-04-26 |
| TWI513384B (en) | 2015-12-11 |
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