CN104781656B - X ray checking device - Google Patents
X ray checking device Download PDFInfo
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- CN104781656B CN104781656B CN201380059007.4A CN201380059007A CN104781656B CN 104781656 B CN104781656 B CN 104781656B CN 201380059007 A CN201380059007 A CN 201380059007A CN 104781656 B CN104781656 B CN 104781656B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
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Abstract
The present invention provides a kind of X ray checking device, it is possible to obtains by interval insulant and is listed in the accurate result that the number of the multiple article within packaging material checks.X ray checking device (10) includes x-ray bombardment portion (13), X-ray test section (14) and checks control portion (20).Object product (P) includes packaging material (m1) and multiple article (G).Multiple article pass through interval insulant (m2) and are listed in the inside of packaging material.X-ray bombardment portion is to object product X-ray irradiation.The detection of X-ray test section i.e. passes through X-ray through the X-ray of object product.Check that control portion is based on the quantity through the multiple article of X-ray examination.Further, check that control portion has radioscopic image generating unit (22a), rectangle generating unit (22c), Area generation portion (22d) and number and checks enforcement division (22e).Radioscopic image generating unit generates radioscopic image based on through X-ray.Rectangle generating unit generates the rectangle comprising multiple article based on radioscopic image.The inside of rectangle is split by Area generation portion according to the information of regulation, is internally generated cut-off rule region (da) and multiple zonule (sa) at rectangle.Number checks that enforcement division is incorporated to cut-off rule region at radioscopic image, identifies each in the multiple article contained by radioscopic image, carries out the number inspection of multiple article.
Description
Technical field
The present invention relates to X ray checking device.
Background technology
All the time, it is known that a kind of (right at the article utilizing supply unit conveyance packaging material to pack
As product) while carry out x-ray bombardment, and based on the X-ray through object product (through X
Ray) carry out owing the X ray checking device that product examine is looked into.And, such as, in patent documentation 1 (day
This patent JP 2002-228761 publication) in propose can in the inside of packaging material by
The spaced apart multiple article of barrier material carry out owing the X ray checking device that product examine is looked into.
Summary of the invention
Invention to solve the technical problem that
But, the X ray checking device shown in above-mentioned document is generating based on through X-ray
Set on radioscopic image and owe mask (the マ ス Network) region that product examine is surveyed.At X in prescribed limit
Masked areas is set on the coordinate axes position of the regulation on ray image.Its result, when utilizing conveying single
When the gradient of the object product of unit's conveyance is not fixed, it is impossible to obtain number accurately and check result.
The problem of the present invention is that providing a kind of can obtain the inner utilization separating material at packaging material
The X ray checking device of the accurate result that the number of material multiple article side by side checks.
Solve the technical scheme of technical problem
The X ray checking device relating to the present invention is for checking that the X-ray examination of object product fills
Put, including x-ray bombardment portion, X-ray test section and inspection control portion.Object product includes
Package material and multiple article.Multiple article are arranged side by side at the inner utilization interval insulant of packaging material.
X-ray bombardment portion is to object product X-ray irradiation.The detection of X-ray test section is through object product
X-ray, i.e. through X-ray.Check that control portion is based on the number detecting multiple article through X-ray
Amount.Further, check control portion have radioscopic image generating unit, rectangle generating unit, Area generation portion,
And number checks enforcement division.Radioscopic image generating unit generates X ray picture based on through X-ray
Picture.Rectangle generating unit generates the rectangle comprising the multiple article shown by radioscopic image.Area generation
The inside of rectangle is split by portion according to the information of regulation, and generates cut-off rule region at rectangle inside
And multiple zonule.Number checks that cut-off rule region is incorporated to radioscopic image by enforcement division, and identifies X
Each in multiple article that ray image is comprised, carries out the number inspection of multiple article.
The X ray checking device generation relating to the present invention comprises the multiple things shown by radioscopic image
The rectangle of product.Further, it is internally generated cut-off rule region and multiple zonule at rectangle.Number checks
Cut-off rule region is incorporated to radioscopic image by enforcement division, and identifies each in multiple article, carries out
The number inspection of article.Thus, though adjacent article contacts, it is also possible to obtain number check standard
Really result.
And, number checks that enforcement division preferably basis incorporates the radioscopic image in cut-off rule region,
Identify the respective profile of multiple article, carry out the number inspection of multiple article.The image of overlapping article
Divided line region segmentation.Thus, it is possible to specify each article.
And, number checks that enforcement division preferably generates and eliminates cut-off rule region from radioscopic image
Image, i.e. process image, and carry out multiple according to the image processing multiple article that image is comprised
The number inspection of article.Owing in radioscopic image, image section at overlapping article forms border,
Therefore, it is possible to check the number of the article comprised in object product definitely.
And, number checks whether each region that enforcement division is preferably based in multiple zonule has multiple
Article, carry out the number inspection of multiple article.Thus, it is possible to judge to utilize interval insulant spaced apart
Each region with or without article.
And, check that control portion preferably has and columns information storage part.And columns information storage part deposits
Storage column number information.And column number information is at least one party in the line number arranged side by side with multiple article and columns
The information of relevant regulation.Further, Area generation portion is preferably according to also column number information, in rectangle
Portion generates multiple zonules and cut-off rule region.Due to basis also column number information by equal for cut-off rule region
Etc. ground be incorporated to radioscopic image, therefore, it can to judge the multiple article in the inside of packaging material whether by
Distinguish definitely.
And, the inside of rectangle is preferably carried out crosscutting rectilinear region by cut-off rule region.By
This, can suitably owe product examine and look into interval insulant.
And, check that control portion preferably has input acceptance division.Input acceptance division receives the information of regulation
Input.Further, the information of the regulation that Area generation portion preferably basis is received by input acceptance division,
It is internally generated multiple zonule and cut-off rule region at rectangle.Thus, it is possible to easily reflect user
Demand.
And, and columns information storage part preferably stores the line number corresponding to interval insulant and columns.And
Column number information storage part is according to the quantity in every kind of packaging material storage cut-off rule region.Thus, it is possible to root
It is automatically incorporated into cut-off rule region according to packaging material.
Invention effect
According to relating to the X ray checking device of the present invention, can obtain in the inside of packaging material profit
The accurate result checked by the number of interval insulant multiple article side by side.
Accompanying drawing explanation
Fig. 1 relates to the stereoscopic figure of the X ray checking device of an embodiment of the invention.
Fig. 2 is the skeleton diagram of the inspection line (X-ray inspection system) including X ray checking device.
Fig. 3 is the simple pie graph within the shielding box of X ray checking device.
Fig. 4 is the curve chart illustrating the example through amount of x-ray detected by x-ray detection device.
Fig. 5 is the example of the picture shown by display.
Fig. 6 is control block diagram.
Fig. 7 is the figure of the example being illustrated based on the rectangle that binary image generates.
Fig. 8 is the cut-off rule region being internally generated and the example of multiple zonule being shown in rectangle
Figure.
Fig. 9 is the flow chart of the handling process illustrating X ray checking device.
Figure 10 is the figure of the example illustrating radioscopic image.
Figure 11 is the figure of the example illustrating binary image.
Figure 12 is the figure of the example being illustrated based on the rectangle that binary image generates.
Figure 13 is the figure for rectangle fitting (Off ィ ッ テ ィ Application グ) is described.
Figure 14 is the figure for rectangle fitting is described.
Figure 15 is the figure for rectangle fitting is described.
Figure 16 is the figure for rectangle fitting is described.
Figure 17 is the figure of the process being incorporated to cut-off rule region for explanation in the inside of rectangle.
Figure 18 is the figure illustrating the example processing image.
Figure 19 is the example of the process of the X ray checking device relating to variation A for explanation.
Figure 20 is stored in relating to the example of the information in the also columns information storage area of variation B
Son.
Detailed description of the invention
Hereinafter, referring to the drawings the X ray checking device relating to embodiments of the present invention is said
Bright.
(1) the outlining of X ray checking device
Fig. 1 is the outward appearance of the X ray checking device 10 illustrating and relating to an embodiment of the invention
Axonometric chart.Further, Fig. 2 illustrates the inspection line (X-ray being built-in with X ray checking device 10
Inspection system) 100 example.Checking that line 100 carries out the inspection of the product P such as food.Check line
100 in addition to comprising X ray checking device 10, also comprises upstream supply unit 60 and dispenser
Structure 70.Upstream supply unit 60 is arranged on the upstream of X ray checking device 10.Distributor gear 70
It is arranged on the downstream of X ray checking device 10.
X ray checking device is by the product P utilizing upstream supply unit 60 to transport continuously and to come
X-ray irradiation, carries out the judgement of the quality of product P.Specifically, X ray checking device
10 judge (individual according to the number carrying out the article G that product P is comprised through the amount of x-ray of product P
Number checks).As it is shown on figure 3, product P includes multiple article G, packs the bag of multiple article G
Package material m1 and be spaced the interval insulant m2 of multiple article G inside packaging material m1.?
The inside of packaging material m1 is arranged side by side multiple article G by interval insulant m2.
When the quantity of the article G that product P is comprised is consistent with the value of regulation, X-ray examination fills
Putting 10 judgement product P is non-defective unit.Otherwise, the number of the article G comprised when product P and regulation
Value inconsistent time, X ray checking device 10 judges that product P is defective products.X-ray examination fills
The inspection result put in 10 is sent to distributor gear 70.Distributor gear 70 and line supply unit 73
Connect with defective products exhausting line 74.Distributor gear 70 will be judged as in X ray checking device 10
The product P of non-defective unit distributes to line supply unit 73, and the product P that will be deemed as defective products is distributed to not
Non-defective unit exhausting line 74.
(2) detailed description of X ray checking device
As shown in Fig. 1, Fig. 3 or Fig. 6, X ray checking device 10 mainly by shielding box 11,
Supply unit 12, x-ray irradiation device (x-ray bombardment portion) 13, (X penetrates X-ray line sensor
Line test section) 14, the display 30 of band touch panel function and control device (check control portion)
20 are constituted.
(2-1) shielding box
Shielding box 11 is to accommodate supply unit 12 described later, x-ray irradiation device 13, X-ray line biography
The box of sensor 14, control device 20 etc..The front upper of shielding box 11 except display 30 with
Outward, it is also configured with keyboard jack and on and off switch etc..Two sides of shielding box 11 are formed with opening
11a.Opening 11a is for moving into product P and taking out of inside and outside shielding box 11.Opening 11a is hidden
Cover curtain 19 to block.Shielding curtain 19 prevents the X-ray of the inside of shielding box 11 to External leakage.Hide
Cover curtain 19 to be formed by leaded rubber.When product P is by opening 11a, shielding curtain 19 is by product
P pushes open.
(2-2) supply unit
Supply unit 12 transports product P in shielding box 11.As it is shown in figure 1, supply unit 12
It is configured to be formed through the opening 11a of two sides at shielding box 11.As it is shown on figure 3, conveying is single
Unit 12 is mainly by the band 12d of endless, conveyer belt roller 12c, conveying motor 12a (with reference to Fig. 6)
Constitute.Conveyer belt roller 12c is driven by carrying motor 12a.Driving of conveyer belt roller 12c is passed through with 12d
Moving and rotate, the product P on band 12d is transported to downstream.Supply unit 12 transports product P
Setting speed that speed inputs according to operator and change.Control device 20 according to setting speed to defeated
Power transmission machine 12a carries out converting control, fine controls the conveyance speed of product P.And, conveying electricity
The conveyance speed of detection supply unit 12 is installed on machine 12a and sends to the coding controlling device 20
Device 12b (with reference to Fig. 6).
(2-3) x-ray irradiation device
As it is shown on figure 3, x-ray irradiation device 13 is arranged in the top of supply unit 12.Roentgenogram
Emitter 13 in fan-shaped range of exposures X to X-ray line sensor 14 X-ray irradiation.Irradiate model
Enclose X and extend vertically up to the feed surface of supply unit 12.Further, range of exposures X is single with conveying
Extend in sector on the direction that the conveying direction of unit 12 intersects.That is, irradiate from x-ray irradiation device 13
X-ray band 12d width extend.
(2-4) X-ray line sensor
As it is shown on figure 3, X-ray line sensor 14 is arranged in the lower section of supply unit 12.X-ray
Line sensor 14 is mainly made up of multiple x-ray detection device 14a.X-ray detection device 14a
Ground in alignment horizontal arrangement is on the direction vertical with the conveyance direction of supply unit 12.
And, each x-ray detection device 14a detection is penetrated through the X of product P and supply unit 12
Line amount (through amount of x-ray), and export based on the X-ray transparent signal through amount of x-ray.Change
Yan Zhi, X-ray transparent signal exports the X-ray transparent signal of intensity based on the X-ray passed through.
It addition, the intensity of the X-ray passed through depends on the size through amount of x-ray.Radioscopic image
Brightness (shading value) is by X-ray transparent signal deciding (with reference to Fig. 4).Fig. 4 is to illustrate to be penetrated by X
The x-ray detection device 14a detection of line line sensor 14 through amount of x-ray (detection limit)
The curve chart of example.The transverse axis of curve chart is corresponding to the position of each x-ray detection device 14a.And,
The transverse axis of curve chart is corresponding to the distance in the direction vertical with the conveyance direction of supply unit 12.And,
The longitudinal axis of curve chart represents the transit dose (inspection of the X-ray detected by x-ray detection device 14a
Measure).That is, the place that detection limit is big is shown as the radioscopic image of bright (light), and detection limit is little
Place be shown as the radioscopic image of dim (dense).It is to say, the light and shade of radioscopic image is (dense
Light) corresponding to the detection limit of X-ray.
And, X-ray line sensor 14 is also as detecting product P by fan-shaped X-ray
The sensor of the timing of range of exposures X (with reference to Fig. 3) plays a role.That is, when at supply unit 12
Band 12d on conveyance product P arrive X-ray line sensor 14 top position (range of exposures
X), time, X-ray line sensor 14 output represents the X-ray transparent of the voltage of below defined threshold
Signal (the first signal).On the other hand, product P is by after range of exposures X, and X-ray line senses
Device 14 output represents the X-ray transparent signal (secondary signal) of the voltage beyond defined threshold.Pass through
First signal and secondary signal are transfused to control device 20 described later, can detect in range of exposures X
With or without product G.
(2-5) display
Display 30 plays a role as display part and input unit.Specifically, display 30 is liquid
Crystal display.Display 30 shows the inspection result (with reference to Fig. 5) of product P.Fig. 5 is product P
The example of inspection result.Further, display 30 has the function of touch panel.Therefore, display
Device 30 receives the input of inspection parameter and the action set information that operator carries out etc..
Here, check that parameter is the number correctness for judging article G that product P comprised
Call parameter.Further, action set information is to check speed and the conveyance direction of supply unit 12
Deng information.Further, display 30 receives operator is carried out and the input of column number information.Side by side
Number information is the information that Area generation portion 22d described later is used.The inspection that display 30 is received
Parameter is stored in storage part 21 described later.Display 30 electrically connects with controlling device 20, carries out
With the signal transmitting and receiving controlling device 20.
(2-6) device is controlled
Control device 20 to be mainly made up of CPU, ROM, RAM and HDD (hard disk) etc..
Control device 20 and also there are not shown display control circuit, button inputting circuits, COM1 etc..
Display control circuit is to control the circuit that the data on display 30 show.Button inputting circuits is to take
Obtain the circuit of the key-press input data of operator's touch panel input by display 30.Communication ends
Mouthful can be connected with the network such as external equipment and LAN such as printer.
And, control device 20 also with above-mentioned conveying motor 12a, encoder 12b, x-ray bombardment
Device 13, X-ray line sensor 14 and display 30 etc. electrically connect.Control device 20 from coding
Device 12b obtains the data that the revolution of conveying motor 12a is correlated with, and grasps product P based on these data
Displacement.Further, as it has been described above, control device 20 by receiving by X-ray line sensor 14
The signal of output, the product P on the band 12d of detection supply unit 12 arrives determining of range of exposures X
Time.
And, as shown in Figure 6, control device 20 mainly as storage part 21 and 22, control portion
Wave effect.Control device 20 based on the number through the multiple article G contained by X-ray examination product P
Amount.
(2-6-1) storage part
Storage part 21 stores the various programs performed by control portion 22 and checks parameter.As it has been described above,
The touch panel function input checking parameter of display 30 is used by operator.
Storage part 21 mainly has radioscopic image memory area 21a, binary image memory area
21b columns information storage area 21c and process image memory region 21d.
(a) radioscopic image memory area
Radioscopic image memory area 21a stores to have and is given birth to image production part 22a described later
The data (view data) that the radioscopic image become is relevant.Radioscopic image includes included by product P
Packaging material m1, interval insulant m2 and multiple article G (with reference to Figure 10).
(b) binary image memory area
Binary image memory area 21b stores to have and is generated with image production part 22a described later
The relevant data (binaryzation data) of binary image.Binary picture seems that radioscopic image is by two
Image after value process, in order to only demonstrate the packaging material m1 included by product P, separating material
Multiple article G (with reference to Figure 11) in material m2 and multiple article G.It addition, be stored in binaryzation
Binary image in image memory region 21b and the number relevant to the radioscopic image before binarized
Store explicitly according to (view data).
(c) columns information storage area
And 21c storage in columns information storage area is for being generated in rectangle generating unit 22c described later
Information (and column number information) (ginseng being internally generated cut-off rule region da and zonule sa of rectangle sq
According to Fig. 8).And column number information is the multiple article G phases being arranged side by side with the inside at packaging material m1
The information closed.Specifically, and column number information refers to " line number " that be arranged side by side with multiple article G
The information (information of regulation) that at least one party in " columns " is correlated with.And column number information in other words,
It is to separate the information that the mode of multiple article G is relevant to interval insulant m2.Such as, it is used for checking figure
Product P shown in 3 is necessary and in column number information, includes expression line number: 2, columns: 3
Information.Further, for checking necessary to the product P being packaged with article G in the way of shown in Fig. 8
And in column number information, include expression line number: 4, columns: the information of 3.
D () processes image memory region
Process storage in image memory region 21d and process image.Processing image is to be examined by number described later
Look into the image that enforcement division 22e generates.Specifically, process image to refer to be incorporated in binary image
Image after cut-off rule region da based on also column number information.It addition, process image memory region 21d
The image that processes of middle storage is also associated with the view data of storage in radioscopic image memory area 21a
Ground storage.
(2-6-2) control portion
Control portion 22 is by performing the various programs of storage in storage part 21, as image production part (X
Ray image generating unit) 22a, input acceptance division 22b, rectangle generating unit 22c, Area generation portion 22d,
Number checks that enforcement division 22e and good no detection unit 22f play a role.
(a) image production part
Image production part 22a according to detected by X-ray line sensor 14 through amount of x-ray system
Make radioscopic image.Specifically, image production part 22a penetrates with tiny time interval acquirement X
The X-ray transparent signal that each x-ray detection device 14a of line line sensor 14 is exported, and base
Intensity (brightness) in the X-ray transparent signal obtained generates radioscopic image.That is, image is raw
One-tenth portion 22a when product P is by range of exposures X (with reference to Fig. 3) of fan-shaped X-ray, based on
The X-ray transparent signal that each x-ray detection device 14a is exported, generates the X comprising product P
Ray image.With or without product P in range of exposures X, exported by X-ray line sensor 14
Signal judges.
Image production part 22a is by the intensity with the X-ray obtained by each x-ray detection device 14a
The data of each tiny time interval that (brightness) is relevant, connect according to time series with rectangular
Get up, generate the radioscopic image about product P.The X-ray generated by image production part 22a
Image is stored in radioscopic image memory area 21a.
And, image production part 22a generates the binary image of radioscopic image.Specifically,
The shading value of the threshold value of regulation with each pixel constituting radioscopic image is compared by image production part 22a
Relatively, it is judged that whether the shading value of each pixel of composition radioscopic image is below the threshold value of regulation, and incites somebody to action
Radioscopic image binaryzation.Wherein, it is stipulated that threshold value refer to for identifying the multiple things contained by product P
Product G and the part beyond it and the threshold value that sets.Specifically, image production part 22a carries out image
The filtration treatment of data, for constituting in whole pixels of radioscopic image, bright through X-ray
Degree (intensity) represents with the gray scale (255) corresponding to white beyond the pixel of defined threshold, for
Pixel below defined threshold is to represent corresponding to the gray scale of black (0).It addition, generate with image
The data (binaryzation data) that the binary image that portion 22a is generated is relevant are stored in above-mentioned two-value
Change in image memory region 21b.
(b) input acceptance division
Input acceptance division 22b receives inspection parameter and the action inputted from display 30 by operator and sets
Determine the various information such as information.And, input acceptance division 22b receives defeated from display 30 by operator
The also column number information entered.The information that input acceptance division 22b is received is stored in storage part 21.
It addition, as it has been described above, and column number information be stored in and columns information storage area 21c in.
(c) rectangle generating unit
Rectangle generating unit 22c generates the rectangle sq (ginseng comprising multiple article G based on radioscopic image
According to Fig. 7).Specifically, rectangle generating unit 22c obtain be included in binarized after X ray picture
Minimum rectangle sq (rectangle fitting) as multiple article G of display in (binary image).
More specifically, rectangle generating unit 22c by X-axis is generated vertical line and parallel line,
It is passed in binary image the high order end of multiple article G of display, low order end, topmost,
The part of lower end, thus try to achieve the rectangle sq (with reference to Figure 13 to Figure 16) comprising multiple article G.
And, as shown in Figure 13 to Figure 16, rectangle generating unit 22c with binary image is a bit
Benchmark, makes binary image rotate with predetermined angular (being 10 ° in present embodiment) every time, often revolves
Turn a binary image, obtain and comprise multiple article G of display in postrotational binary image
Rectangle sq.Rectangle generating unit 22c is specified from the multiple rectangle sq rotating binary image and try to achieve
Rectangle (minimum rectangle) sq that area is minimum.
(d) Area generation portion
The inside of rectangle sq is entered by Area generation portion 22d according to also column number information (information of regulation)
Row segmentation.In other words, Area generation portion 22d rectangle sq be internally generated cut-off rule region da and
Multiple zonule sa (with reference to Figure 17).It addition, the rectangle sq that inside is split by Area generation portion 22d
It is the minimum rectangle sq specified by rectangle generating unit 22c.
The also column number information that Area generation portion 22d receives according to input acceptance division 22b, at rectangle
Sq is internally generated cut-off rule region da and multiple zonule sa.Wherein, as shown in Figure 8, segmentation
Line region da is the rectilinear region of the inside crossing rectangle sq.Parallel with the limit constituting rectangle sq
Or vertically generate cut-off rule region da.And, zonule sa refers to by the inside at rectangle sq
Generate cut-off rule region da and in the region being internally generated of rectangle sq.That is, zonule sa is rectangle
Region beyond the da of cut-off rule region in the interior zone of sq, is the district adjacent with cut-off rule region da
Territory.
Cut-off rule region da according to and column number information by the inner homogeneous Ground Split of rectangle sq.In other words,
The cut-off rule region da generated by Area generation portion 22d is arranged in the inside of rectangle sq equably.And
And, Area generation portion 22d the size approximate equality of the zonule sa generated.
E () number checks enforcement division
Number checks that enforcement division 22e carries out the number inspection of the article G that product P is comprised.Change speech
It, number checks that enforcement division 22e carries out being arranged side by side at multiple article of the inside of packaging material m1
The number inspection of G.Number checks the radioscopic image (binaryzation after enforcement division 22e use binaryzation
Image) and by the cut-off rule region da of Area generation portion 22d generation, carry out the individual of multiple article G
Number checks.
Specifically, number checks that enforcement division 22e is incorporated to cut-off rule region da in binary image,
Generation processes image (with reference to Figure 18).As it has been described above, processing image is to be incorporated in binary image
Image based on the also cut-off rule region da of column number information.In processing image, cut-off rule region da
The gray scale of part is set to 255.That is, in processing image, cut-off rule region da is represented with white.
In other words, processing image is by the whole pixels constituting binary image, with cut-off rule region da
The pixel of overlapping part replaces to the image after white.Specifically, process image to show from two-value
Change the figure after removing the part overlapping with cut-off rule region da in the image of the article G shown by image
Picture.
Number checks that enforcement division 22e passes through the image of multiple article G that identifying processing image is comprised
Carry out number inspection.Specifically, number checks that enforcement division 22e processes whole pictures of image to composition
In element, the part being set to the color of neighbor different is specified.It is set to neighbor
The different part of color can become the part of the profile representing article G.Specifically, number inspection
Look into enforcement division 22e and obtain pixel (black picture element) continuous print part (black part being set to black
Point) area or the girth of black part.That is, number checks that enforcement division 22e will be set to adjacent
The part that the color of pixel is different is judged to constitute the pixel (contour pixel) of the profile of article G, asks
Go out the quantity (area) of the pixel surrounded by contour pixel, or the quantity (girth) of contour pixel.And
And, number checks that enforcement division 22e is by the threshold value of regulation and the area of black part or the week of black part
Length compares, and when the area of black part or the girth of black part are beyond the threshold value specified, sentences
It is set to the image that this black part is article G.On the other hand, number checks that enforcement division 22e will regulation
Threshold value compare, when the area of black part with the area of black part or the girth of black part
Or time below the threshold value that specifies of the Zhou Changwei of black part, it is determined that it not article G for this black part
Image, ignores this black part.
The quantity of the article G that number inspection enforcement division 22e determination processing image is comprised, and will sentence
Determine result to be stored in above-mentioned storage part 21.In other words, number checks that enforcement division 22e is according to process
The threshold determination of image and regulation processes the quantity of the image of the article G contained by image, and will be with judgement
Number (judgement number) the relevant information of article G be stored in above-mentioned storage part 21.
(f) good no detection unit
The number of the article G that good no detection unit 22f is judged according to number inspection enforcement division 22e, enters
The judgement of non-defective unit/defective products that row is relevant to product P.In other words, good no detection unit 22f according to deposit
The information that in storage portion 21, the judgement number of storage is relevant, carries out sentencing of the non-defective unit/defective products to product P
Fixed.
Specifically, good no detection unit 22f is by represented by the inspection parameter of storage in storage part 21
Article G's represented by the number (standard number) of article G and the information relevant to judgement number
Number compares, it is determined that the quantity of the article G contained by product P is the most correct.More specifically,
Good no detection unit 22f criterion number is the most consistent with judgement number, when standard number and judgement
When number is consistent, then it is judged to that the quantity of article G contained by product P is correct (being non-defective unit).Otherwise,
When standard number is with when judging that number is inconsistent, and good no detection unit 22f judges the article contained by product P
The quantity of G is incorrect (being defective products).
When, after the difference of non-defective unit/defective products judging product P, good no detection unit 22f exports expression
Product P is the signal (result of determination) of the meaning of in non-defective unit/defective products.By good no detection unit
The signal of 22f output is sent to distributor gear 70.Distributor gear 70 is according to good no detection unit 22f
Result of determination, product P is assigned to line supply unit 73 or defective products exhausting line 74.
(3) handling process
With reference to Fig. 9 to Figure 18, the handling process utilizing X ray checking device 10 to carry out is said
Bright.
After product P being put in X ray checking device 10, in step S1, by image production part
22a generates the radioscopic image (with reference to Figure 10) of product P.After radioscopic image generates, penetrate with X
The data (view data) that line image is relevant are stored in radioscopic image memory area 21a.Figure
After being stored in radioscopic image memory area 21a as data, enter step S2.
In step S2, image production part 22a generate the binary image (reference of radioscopic image
Figure 11).Specifically, image production part 22a by regulation threshold value with composition radioscopic image each
The shading value of pixel compares, it is judged that the shading value of each pixel whether below the threshold value of regulation, and
According to judged result, radioscopic image is carried out binaryzation.In the binaryzation data quilt that step S2 generates
It is stored in binary image memory area 21b.Then, step S3 is entered.
Rectangle fitting is carried out in step S3.Specifically, in step S3, by rectangle generating unit
22c obtains and comprises the rectangle sq (reference of multiple such minimums of article G of display in binary image
Fig. 7 and Figure 12).More specifically, rectangle generating unit 22c generates the line vertical with X-axis and parallel
Line so that it is by the high order end of multiple article G of display, low order end in binary image, go up most
End, the part (with reference to Figure 13 to Figure 16) of bottom.Specifically, as shown in Figure 13 to Figure 16,
Rectangle generating unit 22c, on the basis of any of binary image, makes binary image every time with regulation angle
Degree (being 10 ° in present embodiment) rotates, and often rotates a binary image, obtains and comprise rotation
After binary image in the rectangle sq of multiple article G of display.Then, rectangle generating unit 22c
The rectangle sq that area is minimum is specified from multiple rectangle sq.Afterwards, step S4 is entered.
In step S4, the inside of rectangle sq carries out splitting (with reference to Figure 17) by Area generation portion 22d.
In other words, Area generation portion 22d is according to also column number information (information of regulation), in the inside of rectangle
Generate cut-off rule region da and multiple zonule sa.Then, step S5 is entered.
In step S5, check that cut-off rule region da is incorporated to binary picture by enforcement division 22e by number
(with reference to Figure 18) in Xiang.Image is processed by being incorporated to the da generation of cut-off rule region in binary image.
Then, step S6 is entered.
In step S6, it is determined that the image of process article G contained by image.Specifically, number inspection
Look into enforcement division 22e to specify, the contour pixel in whole pixels of composition process image according to wheel
Pixel count (area) that wide pixel is surrounded or the quantity (girth) of contour pixel, it is determined that process figure
Image as contained article G.Number checks the article G contained by enforcement division 22e determination processing image
Image after, by the information relevant to the quantity of the image of the article G judged (with judge number phase
The information closed) it is stored in storage part 21.Then, step S7 is entered.
In step S7, according to the inspection parameter (threshold value of regulation) relevant to standard number and with deposit
The information that in storage portion 21, the judgement number of storage is relevant, carries out product P by good no detection unit 22f
The number inspection of contained article G.Specifically, good no detection unit 22f criterion number and sentencing
Determine number the most consistent.Wherein, when standard number is consistent with judging number, good no detection unit 22f
Judge that product P is as non-defective unit.Otherwise, when standard number and judgement number are inconsistent, good no detection unit
22f judges that product P is as defective products.Then, step S8 is entered.
In step S8, the result of determination of good no detection unit 22f shows on the display 30 (with reference to figure
5).It addition, on the display 30, except the judgement knot that display is relevant to the number inspection of product P
Really, as shown in Figure 5, it is also possible to show the image of article G simultaneously.Wherein, the article G of display
Image be to process image be processed after image (manuscript picture).Such as, manuscript seems
Process whole pixels of image eliminate from composition and be judged as not being the black of the image of article G
Image after part.
(4) feature
(4-1)
X ray checking device 10 generation relating to above-mentioned embodiment comprises in binary image contained
The rectangle sq of multiple article G.Binary picture seems the figure after radioscopic image carries out binaryzation
Picture.Further, in X ray checking device 10, cut-off rule region sa it is incorporated in the inside of rectangle sq,
Identify each in multiple article G, carry out the number inspection of article G.Thus, though adjacent
Article G contact, it is also possible to carry out high-precision number inspection.
Upstream supply unit 60 the inspection object product P of X ray checking device is transported continuously and
Come.Here, by the product P of upstream supply unit 60 conveyance not with solid relative to conveyance direction
Fixed gradient transports.That is, product P has the shape of various gradient relative to conveyance direction
Transported by supply unit 12 under state.Here, such as, in order to carry out the article contained by product P
The number inspection of G and when setting masked areas on the x-ray image, the scope in regulation is penetrated at X
Masked areas is set on the coordinate axes position of the regulation on line image.It is as a result, it is difficult to carry out accurately
Number checks.
But, X ray checking device 10 generation relating to above-mentioned embodiment comprises binary image
The rectangle sq of the image of the article G of middle display, and inside at rectangle sq is incorporated to cut-off rule further
Region da.Thus, multiple article G divided line region da segmentation of contact, therefore, it can
Result is checked to number accurately.
(4-2)
And, relate to the X ray checking device 10 of above-mentioned embodiment according to incorporating cut-off rule district
The binary image of territory da, identifies multiple respective profile of article G, carries out the individual of multiple article G
Number checks.Utilize cut-off rule region that overlapping article G is carried out image segmentation, and according to cut-off rule district
Territory generates the profile of the image of each article G.Thus, it is possible to specify each article G.
(4-3)
And, the X ray checking device 10 relating to above-mentioned embodiment generates from constituting binarized
Radioscopic image whole pixels in eliminate constitute cut-off rule region da pixel after image,
I.e., process image, and image based on the multiple article G processed contained by image, carry out multiple article
The number inspection of G.Owing to passing through to divide on the image section of article G overlapping in radioscopic image
Domain of cut da forms border, therefore, it is possible to more properly check the article contained by object product P
The number of G.
(4-4)
And, the X ray checking device 10 relating to above-mentioned embodiment has and column number information storage
Region (and columns information storage part) 21c.And columns information storage area 21c storage also columns letter
Breath.And at least one in column number information is to multiple article are arranged side by side line number and columns is relevant
Information.Further, X ray checking device 10 is based on also column number information, being internally generated of rectangle sq
Multiple zonule sa and cut-off rule region da.Due to cut-off rule region da based on and column number information and quilt
It is incorporated to binary image equably, therefore, it can judge in the inside of packaging material m1, multiple things
Whether product G is appropriately spaced.
(4-5)
And, binary image is being generated by the X ray checking device 10 relating to above-mentioned embodiment
The inside of rectangle sq, cross rectilinear region, the inside of rectangle sq split equably.Logical
Crossing this mode, (number inspection) is looked in the deficient product examine that can carry out being applicable to interval insulant m2.
(4-6)
And, in the X ray checking device 10 relating to above-mentioned embodiment, by input acceptance division
22b receives the various information inputted by display 30.Input acceptance division 22b receives and includes and columns
The input of the various information of information.Area generation portion 22d is received according to by input acceptance division 22b
Information, be internally generated multiple zonule sa and cut-off rule region da at rectangle sq.Thus, may be used
Easily to reflect the demand of user.
(5) variation
(5-1) variation A
In the X ray checking device 10 relating to above-mentioned embodiment, by Area generation portion 22d
Generate the cut-off rule region da (and zonule sa) of the inside of segmentation rectangle sq, then, cut-off rule
By number, region da checks that enforcement division 22e is merged in binary image.Specifically, number
Check that enforcement division 22e is by overlapping with cut-off rule region da in whole pixels of composition binary image
The pixel of part replaces to white, be would indicate that the image section of article G of overlap by white line separately.
Further, number checks that enforcement division 22e is replaced according to by the pixel with cut-off rule region da lap
Become the image after white, the number of article G is judged.
Wherein, as shown in figure 19, number check enforcement division can also by binary image also
Enter both rectangle sq and cut-off rule region da, to multiple zonule sa every generated in rectangle sq
Whether one region decision exists the image of article G, thus judges product of owing.Specifically, as above institute
Stating, number inspection enforcement division generates the process image after binary image is incorporated to cut-off rule region da,
And each in the image of the multiple article G contained by identifying processing image.And, number inspection is held
Row portion judges whether the article G identified is included in each in multiple zonule sa.Its knot
Really, it is possible to determine that with or without article G in each zonule sa being spaced by interval insulant m2.I.e., it is possible to
Judge whether article G is suitably arranged in the inside of packaging material m1.
(5-2) variation B
In the X ray checking device 10 relating to above-mentioned embodiment, by input acceptance division 22b
Receive and column number information is stored in and in the 21c of columns information storage area, Area generation portion 22d
Inside according to also column number information segmentation rectangle sq.Here, and in the 21c of columns information storage area
The multiple line numbers to the kind corresponding to interval insulant m2 and the relevant information of columns can also be stored.
Specifically, as shown in figure 20, and columns information storage area 21c can also store and will be spaced
The kind of material m2 be associated with line number and columns after multiple information.And column number information in other words,
Memory area 21c can also generate necessary to the sa of zonule according to every kind of interval insulant m2 storage
Information.
And, and columns information storage area 21c can also store the kind corresponding to interval insulant m2
" quantity of cut-off rule region da " of class, to substitute " line number " of the kind corresponding to interval insulant m2
" columns ".I.e., it is possible to the product P shown in Fig. 3, storage expression X-direction: 2, Y-axis
Direction: the information of 1, to the product P shown in Fig. 8, stores and represents X-direction: 2, Y direction:
The information of 3.
In either case, by being pre-selected between the product P as inspection object
Barrier material m2, can be automatically incorporated into the cut-off rule region da corresponding to interval insulant m2.
(5-3) variation C
Relate to the X ray checking device 10 of above-mentioned embodiment according to the article G's contained by product P
Number, carries out the judgement of product quality.Here, X ray checking device 10 except article G
Beyond number, it is also possible to judge to carry out the good no judgement of article G according to defect.Wherein, defect refers to
Each article G does not have complete shape, but has the state of defect.Defect judges can also be according to place
Reason image is carried out.It addition, when carrying out defect and judging, it is contemplated that the image of article G is due to segmentation
Line region da and the situation of defect, be preferably previously set the threshold value with width.
And, X ray checking device 10 can also judge each thing according to the shading value of radioscopic image
The weight of product G, and the defect judgement of each article G is carried out according to the weight judged.
And, X ray checking device 10 is while carrying out above-mentioned inspection, it is also possible to carry out foreign body
Check.
Symbol description
10 X ray checking devices, 11 shielding boxs, 12 supply units, 13 x-ray bombardments
Device (x-ray bombardment portion), 14 X-ray line sensors (X-ray test section), 14a X penetrate
Line detection devices, 20 control devices (checking control portion), 21 storage parts, 21a X ray picture
As memory area, 21b binary image memory area, 21c columns information storage area, 21d
Process image information memory area, 22 control portions, 22a radioscopic image generating unit, 22b defeated
Enter acceptance division, 22c rectangle generating unit, 22d Area generation portion, 22e number check enforcement division,
The good no detection unit of 22f, 30 display, 70 distributor gears, 80 line supply units, 90 not
Non-defective unit exhausting line, 100 inspections line (X-ray inspection system)
Citation
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2002-228761 publication
Claims (8)
1. an X ray checking device, comprises packaging material and at described packaging material for checking
The object product of the internal multiple article being arranged side by side by interval insulant, described X-ray is examined
Look into device to include:
X-ray bombardment portion, to described object product X-ray irradiation；
X-ray test section, detection, through X-ray, should be through described through X-ray
The described X-ray of object product；And
Check control portion, based on the described quantity through the plurality of article of X-ray examination,
Described inspection control portion has:
Radioscopic image generating unit, generates radioscopic image based on described through X-ray；
Rectangle generating unit, generates vertical line and parallel line, so that passing through to the axle of regulation
The high order end of the plurality of article of display in described radioscopic image after binarized,
Right-hand member, topmost, the part of bottom, thus generate and comprise the rectangle of the plurality of article；
Area generation portion, splits the inside of described rectangle according to the information of regulation,
Described rectangle be internally generated cut-off rule region and multiple zonule；And
Number checks enforcement division, is incorporated to described cut-off rule region in described radioscopic image,
Identify each in the plurality of article contained by described radioscopic image, carry out described many
The number inspection of individual article.
X ray checking device the most according to claim 1, wherein,
Described number checks that enforcement division is penetrated based on the described X incorporating described cut-off rule region
Line image, identifies the respective profile of the plurality of article, carries out the number of the plurality of article
Check.
X ray checking device the most according to claim 1 and 2, wherein,
Described number checks that enforcement division generates and removes described segmentation from described radioscopic image
Image behind line region, i.e. process image, and described many based on contained by described process image
The image of individual article, carries out the number inspection of the plurality of article.
X ray checking device the most according to claim 1 and 2, wherein,
Described number check enforcement division based on the plurality of zonule each in whether there is institute
State multiple article, carry out the number inspection of the plurality of article.
X ray checking device the most according to claim 1 and 2, wherein,
Described inspection control portion also has and columns information storage part, and described and column number information is deposited
The storage of storage portion is relevant at least one party in the line number that the plurality of article are arranged side by side and columns
As described in regulation information and column number information,
Described Area generation portion is based on described and column number information, being internally generated of described rectangle
The plurality of zonule and described cut-off rule region.
X ray checking device the most according to claim 1 and 2, wherein,
Described cut-off rule region is the rectilinear region of the inside crossing described rectangle.
X ray checking device the most according to claim 1 and 2, wherein,
Described inspection control portion also has input acceptance division, and described input acceptance division receives described
The input of the information of regulation,
The letter of the described regulation that described Area generation portion receives based on described input acceptance division
Breath, is internally generated the plurality of zonule and described cut-off rule region at described rectangle.
X ray checking device the most according to claim 5, wherein,
Described and that the storage of columns information storage part is corresponding with described interval insulant described line number
With described columns.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2012268110A JP5864404B2 (en) | 2012-12-07 | 2012-12-07 | X-ray inspection equipment |
| JP2012-268110 | 2012-12-07 | ||
| PCT/JP2013/081604 WO2014087862A1 (en) | 2012-12-07 | 2013-11-25 | X-ray inspection device |
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| CN104781656A CN104781656A (en) | 2015-07-15 |
| CN104781656B true CN104781656B (en) | 2016-08-31 |
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| WO (1) | WO2014087862A1 (en) |
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| JP6363735B2 (en) * | 2015-01-20 | 2018-07-25 | 株式会社イシダ | Inspection device |
| JP6512035B2 (en) * | 2015-08-28 | 2019-05-15 | 日立金属株式会社 | Automatic inspection method and automatic inspection apparatus |
| JP6673165B2 (en) * | 2016-11-29 | 2020-03-25 | 株式会社島津製作所 | X-ray inspection equipment for batteries |
| JP6539893B1 (en) * | 2018-01-26 | 2019-07-10 | 株式会社 システムスクエア | Inspection line |
| JP7485543B2 (en) * | 2020-05-15 | 2024-05-16 | 東芝Ｉｔコントロールシステム株式会社 | Non-destructive Inspection Equipment |
| CN113759431B (en) * | 2021-06-09 | 2023-08-11 | 同方威视技术股份有限公司 | Security data association method and device and X-ray security system |
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| JP2002228761A (en) * | 2001-02-02 | 2002-08-14 | Anritsu Corp | X-ray foreign mater detector and method of detecting defective in the detector |
| JP2005127962A (en) * | 2003-10-27 | 2005-05-19 | Anritsu Sanki System Co Ltd | X-ray inspection system |
| CN101802595A (en) * | 2007-09-26 | 2010-08-11 | 株式会社石田 | Examination apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2362711B (en) * | 2000-05-25 | 2004-09-08 | Spectral Fusion Technologies L | Analysis of samples |
| US6449334B1 (en) * | 2000-09-29 | 2002-09-10 | Lunar Corporation | Industrial inspection method and apparatus using dual energy x-ray attenuation |
| JP2005031069A (en) * | 2003-06-19 | 2005-02-03 | Ishida Co Ltd | X-ray inspection apparatus |
| JP3860144B2 (en) * | 2003-07-04 | 2006-12-20 | アンリツ産機システム株式会社 | X-ray inspection equipment |
| GB2449239B (en) * | 2007-05-14 | 2009-11-04 | Spectrum Inspection Systems Ltd | X-ray imaging |
| JP5358073B2 (en) * | 2007-08-10 | 2013-12-04 | ライオンエンジニアリング株式会社 | Package inspection system and inspection method |
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2012
- 2012-12-07 JP JP2012268110A patent/JP5864404B2/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228761A (en) * | 2001-02-02 | 2002-08-14 | Anritsu Corp | X-ray foreign mater detector and method of detecting defective in the detector |
| JP2005127962A (en) * | 2003-10-27 | 2005-05-19 | Anritsu Sanki System Co Ltd | X-ray inspection system |
| CN101802595A (en) * | 2007-09-26 | 2010-08-11 | 株式会社石田 | Examination apparatus |
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| Publication number | Publication date |
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| CN104781656A (en) | 2015-07-15 |
| WO2014087862A1 (en) | 2014-06-12 |
| JP5864404B2 (en) | 2016-02-17 |
| JP2014115138A (en) | 2014-06-26 |
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