CN104318277A - Commodity sale process detection device - Google Patents
Commodity sale process detection device Download PDFInfo
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- CN104318277A CN104318277A CN201410532855.9A CN201410532855A CN104318277A CN 104318277 A CN104318277 A CN 104318277A CN 201410532855 A CN201410532855 A CN 201410532855A CN 104318277 A CN104318277 A CN 104318277A
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Abstract
The invention discloses a commodity sale process detection device, comprising a shell, a conveying mechanism main motor (3), a light source head (5), a commodity in and out conveying mechanism (8), a camera (9), a code reader (10), a commodity detection device (11), a commodity inlet (12), a commodity award marking laser (13) and a commodity outlet (15). The commodity sale process detection device is simple in structure, convenient to use, and capable of conveniently and effectively detecting and marking the commodities.
Description
Technical field
The present invention relates to merchandise sales process pick-up unit.
Background technology
In prior art, the commodity with viscose paper and bar code are carried out detecting all adopting and manually carries out, inefficiency, robotization cannot be realized and carry out.
Therefore, need merchandise sales process pick-up unit to solve the problem.
Summary of the invention
The object of the invention is, in the prior art for the deficiency that the commodity with viscose paper and bar code detect, to provide commodity sales process pick-up unit.
For achieving the above object, merchandise sales process pick-up unit of the present invention can adopt following technical scheme:
A kind of merchandise sales process pick-up unit, comprises shell, conveying mechanism mair motor, commodity turnover conveying mechanism, camera, code reader, commodity pick-up unit, article portal, commodity prize makes marks laser instrument and commodity export,
The both sides of described shell respectively on be provided with article portal and commodity export, described commodity turnover conveying mechanism is arranged in the housing, one end of described commodity turnover conveying mechanism connects between described article portal and commodity export and is provided with commodity turnover conveying mechanism place, described conveying mechanism mair motor connects described commodity turnover conveying mechanism, described commodity turnover conveying mechanism comprises conveying belt, the link of described commodity turnover conveying mechanism and described article portal is provided with commodity pick-up unit, the top of described conveying belt is provided with camera, code reader and commodity prize make marks laser instrument, described camera and the commodity prize laser instrument that makes marks all is aimed at directly over commodity, described code reader aims at the bar code of described commodity.
Further, also comprise printer and printer paper, the front side of described shell is provided with prize exit slot, and described printer setup is at described prize exit slot place, and described printer paper connects described printer.
Further, also comprise reflection laser and baffle plate, described reflection laser irradiates from the side of described commodity commodity, and described baffle plate is arranged on described reflection laser and irradiates on the route of the reflected light that described commodity produce.Utilize the light of reflection laser to irradiate commodity, light, through reflection, is projected on baffle plate.Detect baffle plate glazed thread reflection strength and distinguish whether have viscose paper.To the commodity of same packaging, with or without viscose paper, light intensity has very big difference, is easy to distinguish.
Further, described reflection laser is linear red laser.Through test, red laser reflecting effect is better, easily differentiates.
Further, described baffle plate is black plate.Black is all 0 in RGB Three Channel Color image intermediate value, decreases noise.
Further, the described commodity prize laser instrument that makes marks is stripe laser.On commodity, stamp the bar shaped marking by stripe laser, conveniently commodity are detected.
Further, described commodity pick-up unit is photoelectric sensor.
Further, described article portal and commodity export share an outlet.
Further, the detection method of commercial glasses paper, comprises the following steps:
1), the image utilized on baffle plate described in collected by camera, the length of described image is identical with commodity length, and described image is RPG image;
2) the R passage of described image, is selected;
3), to image carry out VG (vertical gradient) process, obtain gradient image;
4), to the gradient image that step 3) obtains carry out Threshold segmentation, wherein, obtain segmentation figure, the background of segmentation figure is black, and effective coverage is white;
5), statistic procedure 3) in the length of effective coverage that obtains, when the length of effective coverage is greater than 75% of image length, then commercial glasses paper is complete; When the length of effective coverage is less than 75% of image length, then commercial glasses paper is incomplete.By detection of reflected fiber lengths, tobacco bale viscose paper detection method of the present invention conveniently can judge that whether complete the viscose paper of tobacco bale is, easily implement, good stability, detection speed is fast.
Further, the barcode label detection method of band bar code commodity, marks in band bar code bar code region, comprises the following steps:
1), to band bar code commodity take pictures, obtain the image being with bar code commodity;
2), process in early stage: gradient conversion is carried out to the image of band bar code commodity, obtains gradient image;
3), barcode position in the image of band bar code commodity is positioned;
4), Threshold segmentation is carried out to bar code area image and form binary map;
5) binary map, obtained step 4) is carried out erosion operation and is obtained mark shape.The barcode label detection method of band bar code commodity of the present invention marks in band bar code bar code region, and detection method is simple, and stability is high, is suitable for the commodity of different brands Different Package, and the relative positional accuracy for camera and band bar code commodity is less demanding.
Beneficial effect: merchandise sales process structure of the detecting device of the present invention is simple, easy to use, can detect commodity and mark easily and effectively.
Accompanying drawing explanation
Fig. 1 is the structural representation in merchandise sales process pick-up unit front;
Fig. 2 is that merchandise sales process pick-up unit C-C is to diagrammatic cross-section;
Fig. 3 is the stereographic map of merchandise sales process pick-up unit;
Fig. 4 is the detection schematic diagram of tobacco bale viscose paper detection method;
Fig. 5 is the process flow diagram of tobacco bale viscose paper detection method;
Fig. 6 is the process flow diagram of the barcode label detection method of band bar code commodity.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Refer to shown in Fig. 1, Fig. 2 and Fig. 3, merchandise sales process pick-up unit of the present invention, comprises shell, conveying mechanism mair motor 3, commodity turnover conveying mechanism 8, camera 9, code reader 10, commodity pick-up unit 11, article portal 12, commodity prize makes marks laser instrument 13 and commodity export 15.
Shell is provided with article portal 12 and commodity export 15, commodity turnover conveying mechanism 8 is arranged in shell, and one end of commodity turnover conveying mechanism 8 connects article portal 12, and conveying mechanism mair motor 3 connects commodity turnover conveying mechanism 8.Preferably, article portal 12 and commodity export 15 share an outlet, and so only need open an outlet on shell can finish the work, and the forward and reverse that only need control conveying mechanism mair motor 3 can realize the turnover of commodity.Commodity turnover conveying mechanism 8 comprises conveying belt, and commodity turnover conveying mechanism 8 is provided with commodity pick-up unit 11 with the link of article portal 12, and preferably, commodity pick-up unit 11 is photoelectric sensor, and its model is E3Z-D81.The top of conveying belt is provided with camera 9, code reader 10 and commodity prize and makes marks laser instrument 13.Commodity prize makes marks laser instrument 13 for stripe laser.On commodity, stamp the bar shaped marking by stripe laser, conveniently commodity are detected.Camera 9 and the commodity prize laser instrument 13 that makes marks all is aimed at directly over commodity 14, and code reader 10 aims at the bar code of commodity 14.
Also comprise printer 6 and printer paper 7, the front side of shell is provided with prize exit slot, and printer 6 is arranged on prize exit slot place, and printer paper 7 connects printer 6.
Also comprise reflection laser 1 and baffle plate, reflection laser 1 irradiates from the side of commodity 14 commodity 14, and baffle plate is arranged on reflection laser 1 and irradiates on the route of the reflected light that commodity 14 produce.Utilize the light of reflection laser to irradiate commodity, light, through reflection, is projected on baffle plate.Detect baffle plate glazed thread reflection strength and distinguish whether have viscose paper.To the commodity of same packaging, with or without viscose paper, light intensity has very big difference, is easy to distinguish.Wherein, preferably, reflection laser 1 is linear red laser.Through test, red laser reflecting effect is better, easily differentiates.Baffle plate is black plate, and black is all 0 in RGB Three Channel Color image intermediate value, decreases noise.
Refer to shown in Fig. 4 and Fig. 5, for tobacco bale, the detection method of concrete tobacco bale viscose paper is as follows:
Tobacco bale viscose paper detection method of the present invention, utilizes laser instrument to irradiate tobacco bale in the side of tobacco bale, the route of laser instrument reflected light arranges baffle plate, and wherein, baffle plate is black baffle plate.Black is all 0 in RGB Three Channel Color image intermediate value, decreases noise.Laser instrument is linear red laser.Through test, red laser reflecting effect is better, easily differentiates.And tobacco bale viscose paper detection method of the present invention adopts the length of detection of reflected light to determine that whether viscose paper is complete, so adopt linear red laser.
Comprise the following steps:
1), the image utilized on collected by camera baffle plate, the length of image is identical with tobacco bale length, and image is RPG image;
2) the R passage of image, is selected;
3), to image carry out VG (vertical gradient) process, obtain gradient image; VG (vertical gradient), is the Grad of vertical direction.Due to the mirror-reflection that viscose paper is not standard after all, there is diffuse reflection situation.Make to be difficult to by target from background separation out.As shown in Figure 1.General pattern edge is all more stable, is detection horizontal line based on use occasion, so only use the value in gradient vertical direction, formula is.
4), to the gradient image that step 3) obtains carry out Threshold segmentation, wherein, obtain segmentation figure, the background of segmentation figure is black, and effective coverage is white; Wherein, preferably, the segmentation threshold of Threshold segmentation is 3-9, and this value is that stability is higher through test of many times acquired results.
5), statistic procedure 3) in the length of effective coverage that obtains, when the length of effective coverage is greater than 75% of image length, then tobacco bale viscose paper is complete; When the length of effective coverage is less than 75% of image length, then tobacco bale viscose paper is complete.The length of statistics effective coverage is more stable than statistics area, so adopt the length of statistics effective coverage to judge that whether complete viscose paper is.Length is relative to x coordinate axis, and each x coordinate has at most a point.
Preferably, be 2 sections of images by Iamge Segmentation in step 1), respectively step 2 adopted to each section of image)-5) viscose paper is detected, wherein, in step 5), image length is the length of each section of image.
The two ends of 2 sections of corresponding tobacco bales of image difference.The glass of general tobacco bale is all tear from two ends, and therefore the avulsed position of viscose paper effectively can be determined in the two ends of 2 sections of images corresponding tobacco bale respectively.
By detection of reflected fiber lengths, tobacco bale viscose paper detection method of the present invention conveniently can judge that whether complete the viscose paper of tobacco bale is, easily implement, good stability, detection speed is fast.
Refer to shown in Fig. 6, for the commodity of a band bar code, the barcode label detection method of band bar code commodity of the present invention, marks in band bar code bar code region, comprises the following steps:
1), to band bar code commodity take pictures, obtain the image being with bar code commodity;
2), process in early stage: gradient conversion is carried out to the image of band bar code commodity, obtains gradient image;
3), barcode position in the image of band bar code commodity is positioned;
4), Threshold segmentation is carried out to bar code area image and form binary map;
5) binary map, obtained step 4) is carried out erosion operation and is obtained mark shape.Wherein, the shape of erosion operation is rectangle.
Preferably, Threshold segmentation described in step 4) is ostu dynamic threshold segmentation.Ostu dynamic threshold segmentation can Automatic-searching threshold value, eliminates the impact that flashing is fixed, realizes Iamge Segmentation.
Wherein, step 2) in gradient variable be changed to x direction and y direction gradient conversion.Wherein, x direction is the length direction of band bar code commodity, and y direction is the thickness direction of band bar code commodity.
Wherein, in step 3), the method that barcode position in band bar code commodity image positions is comprised the following steps:
One, by step 2) in gradient image carry out Threshold segmentation, filter out non-edge part;
Two, the image obtained in step one is carried out closing operation process successively, the stripe edge of bar code is communicated with to get up;
Three, finding step 2) in largest connected region;
Four, determining step 3) the largest connected region bound that obtains and left and right limit, obtain the position in bar code region.The approximate region of bar code split from connected graph, but be easy to other regional connectivities incoherent, the bar code region causing segmentation is excessive, therefore also needs bound and the left and right limit of accurately determining largest connected region.
Concrete, ask variance by the gradient image in the x direction to largest connected region in step 4, ask the mean value a of variance, wherein, the region that variance is greater than 0.5a is bar code region, thus determines the bound b in described largest connected region.The bound b stability in largest connected region is high to utilize variance to determine,
Concrete, limit about determining largest connected region in step 4 and comprise the following steps:
(1), using 0.5b as threshold value;
(2), get the optional position in bar code region, and calculate bound piecemeal to the both sides of this position;
(3), when the bound that step (2) calculates is lower than threshold value described in step (1), be then the left and right limit in largest connected region.The basis of the bound b in the higher largest connected region of stability calculates the left and right limit in largest connected region, and stability is also higher.
Inventive principle: have bar code on each band bar code commodity, in bar code, texture is single, and background is also very stable.Be applicable to location to detect with mark, and be applicable to the band bar code commodity of Different Package.
embodiment 1:
On each band bar code commodity, have bar code, in bar code, texture is single, and background is also very stable.Be applicable to location to detect with mark, and be applicable to the band bar code commodity of Different Package.Three parts are mainly comprised for detection algorithm, process in early stage; Bar code positioning; Mark detects.
Process in early stage: the conversion (x direction and y direction gradient) mainly target image being carried out to gradient, as next step basis.
Bar code positioning: the prerequisite being whole algorithm success or not.Feature due to bar code is that strip has very strong gradient after horizontal positioned
After (Fx-Fy) conversion, bar edges has very strong response, can filter out non-edge part through fixed threshold segmentation.And each stripe edge distance of bar code is very near, the stripe edge of bar code can be communicated with after the closing operation of suitable shape through Gaussian Blur, other parts through test tape bar code commodity are difficult to reach so large.By searching the region finding bar code that largest connected region just can be rough.Also may comprise in this time domain after other uncorrelated some effects and detect, for the determination that this region is limit up and down.Bound uses the variance in Fx figure bar code region.There is very strong decay in the region exceeding bar code, and setting a ratio effectively can determine bound.The determination of left and right limit is more difficult, and in connected graph, setting height ratio can be determined, but less stable.So in next step (with empirical value comparison) process, exceed normal value.Then readjust parameters to recalculate.
Mark detects: after determining bar code region, for eliminating the fixed impact of flashing, carrying out ostu dynamic threshold segmentation form binary map to area image.Search mark shape (shape need meet a certain size and require) by Image erosion computing again, the detection marked can be realized.
The barcode label detection method of band bar code commodity of the present invention marks in the bar code region of band bar code commodity, detection method is simple, stability is high, is suitable for the commodity of different brands Different Package, and the relative positional accuracy for camera and band bar code commodity is less demanding.
Merchandise sales process structure of the detecting device of the present invention is simple, easy to use, can detect commodity and mark easily and effectively.
Claims (10)
1. a merchandise sales process pick-up unit, it is characterized in that: comprise shell, conveying mechanism mair motor (3), commodity turnover conveying mechanism (8), camera (9), code reader (10), commodity pick-up unit (11), article portal (12), commodity prize make marks laser instrument (13) and commodity export (15)
Described shell is provided with article portal (12) and commodity export (15), described commodity turnover conveying mechanism (8) are arranged in the housing, one end of described commodity turnover conveying mechanism (8) connects described article portal (12), described conveying mechanism mair motor (3) connects described commodity turnover conveying mechanism (8), described commodity turnover conveying mechanism (8) comprise conveying belt, described commodity turnover conveying mechanism (8) are provided with commodity pick-up unit (11) with the link of described article portal (12), the top of described conveying belt is provided with camera (9), code reader (10) and commodity prize make marks laser instrument (13), described camera (9) and the commodity prize laser instrument (13) that makes marks all is aimed at directly over commodity (14), described code reader (10) aims at the bar code of described commodity (14).
2. merchandise sales process pick-up unit as claimed in claim 1, it is characterized in that: also comprise printer (6) and printer paper (7), the front side of described shell is provided with prize exit slot, described printer (6) is arranged on described prize exit slot place, and described printer paper (7) connects described printer (6).
3. merchandise sales process pick-up unit as claimed in claim 1, it is characterized in that: also comprise reflection laser (1) and baffle plate, described reflection laser (1) irradiates from the side of described commodity (14) commodity (14), and described baffle plate is arranged on described reflection laser (1) and irradiates on the route of the reflected light that described commodity (14) produce.
4. merchandise sales process pick-up unit as claimed in claim 3, is characterized in that: described reflection laser (1) is linear red laser.
5. merchandise sales process pick-up unit as claimed in claim 3, is characterized in that: described baffle plate is black plate.
6. merchandise sales process pick-up unit as claimed in claim 1, is characterized in that: the described commodity prize laser instrument (13) that makes marks is stripe laser.
7. merchandise sales process pick-up unit as claimed in claim 1, is characterized in that: described commodity pick-up unit (11) is photoelectric sensor.
8. merchandise sales process pick-up unit as claimed in claim 1, is characterized in that: described article portal (12) and commodity export (15) share an outlet.
9. merchandise sales process pick-up unit as claimed in claim 3, is characterized in that: the detection method of commercial glasses paper, comprises the following steps:
1), the image utilized on baffle plate described in collected by camera, the length of described image is identical with commodity length, and described image is RPG image;
2) the R passage of described image, is selected;
3), to image carry out VG (vertical gradient) process, obtain gradient image;
4), to the gradient image that step 3) obtains carry out Threshold segmentation, wherein, obtain segmentation figure, the background of segmentation figure is black, and effective coverage is white;
5), statistic procedure 3) in the length of effective coverage that obtains, when the length of effective coverage is greater than 75% of image length, then commercial glasses paper is complete; When the length of effective coverage is less than 75% of image length, then commercial glasses paper is incomplete.
10. merchandise sales process pick-up unit as claimed in claim 1, is characterized in that: the barcode label detection method of band bar code commodity, marks in band bar code bar code region, comprise the following steps:
1), to band bar code commodity take pictures, obtain the image being with bar code commodity;
2), process in early stage: gradient conversion is carried out to the image of band bar code commodity, obtains gradient image;
3), barcode position in the image of band bar code commodity is positioned;
4), Threshold segmentation is carried out to bar code area image and form binary map;
5) binary map, obtained step 4) is carried out erosion operation and is obtained mark shape.
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| CN201410532855.9A CN104318277B (en) | 2014-10-10 | 2014-10-10 | A kind of merchandise sales process detection device |
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| CN201410532855.9A CN104318277B (en) | 2014-10-10 | 2014-10-10 | A kind of merchandise sales process detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113688650A (en) * | 2021-09-22 | 2021-11-23 | 支付宝(杭州)信息技术有限公司 | Method and device for identifying picture |
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| CN102354363A (en) * | 2011-09-15 | 2012-02-15 | 西北工业大学 | Identification method of two-dimensional barcode image on high-reflect light cylindrical metal |
| CN202700831U (en) * | 2012-07-12 | 2013-01-30 | 安徽省一一通信息科技有限公司 | Automatic commodity sorting system capable of recognizing commodities with no identity |
| CN204155298U (en) * | 2014-10-10 | 2015-02-11 | 南京大树智能科技股份有限公司 | A kind of merchandise sales process pick-up unit |
| CN204270420U (en) * | 2014-12-25 | 2015-04-15 | 佳木斯大学 | Based on the supermarket intelligent cashier settlement device of Autonomic Computing |
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2014
- 2014-10-10 CN CN201410532855.9A patent/CN104318277B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354363A (en) * | 2011-09-15 | 2012-02-15 | 西北工业大学 | Identification method of two-dimensional barcode image on high-reflect light cylindrical metal |
| CN202700831U (en) * | 2012-07-12 | 2013-01-30 | 安徽省一一通信息科技有限公司 | Automatic commodity sorting system capable of recognizing commodities with no identity |
| CN204155298U (en) * | 2014-10-10 | 2015-02-11 | 南京大树智能科技股份有限公司 | A kind of merchandise sales process pick-up unit |
| CN204270420U (en) * | 2014-12-25 | 2015-04-15 | 佳木斯大学 | Based on the supermarket intelligent cashier settlement device of Autonomic Computing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113688650A (en) * | 2021-09-22 | 2021-11-23 | 支付宝(杭州)信息技术有限公司 | Method and device for identifying picture |
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Denomination of invention: Commodity sale process detection device Effective date of registration: 20191217 Granted publication date: 20181218 Pledgee: Nanjing Bank Co., Ltd. Chengnan Branch Pledgor: Nanjing Dashu Intelligence Technology Co., Ltd. Registration number: Y2019320000367 |
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