CN112149657A - Cigarette surface character and pattern detection system - Google Patents
Cigarette surface character and pattern detection system Download PDFInfo
- Publication number
- CN112149657A CN112149657A CN202011103830.9A CN202011103830A CN112149657A CN 112149657 A CN112149657 A CN 112149657A CN 202011103830 A CN202011103830 A CN 202011103830A CN 112149657 A CN112149657 A CN 112149657A
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- electrically connected
- chip
- industrial camera
- cigarette
- detection system
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 210000003437 trachea Anatomy 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 230000002950 deficient Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000002566 Capsicum Nutrition 0.000 description 1
- 235000005206 Hibiscus Nutrition 0.000 description 1
- 235000007185 Hibiscus lunariifolius Nutrition 0.000 description 1
- 244000284380 Hibiscus rosa sinensis Species 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/70—Denoising; Smoothing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20024—Filtering details
- G06T2207/20032—Median filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention relates to the technical field of detection equipment, and discloses a cigarette surface character and pattern detection system which comprises an industrial camera arranged on a transmission device, wherein a shielding strip is adhered to one end of the industrial camera facing the transmission device, a processing device is electrically connected with the industrial camera, and a pneumatic removing device electrically connected with the processing device is arranged on the transmission device, and the lens part of the industrial camera is shielded by the shielding strip, so that the industrial camera only shoots a part of area which is easy to make mistakes on the cigarette outer surface character and pattern, the original detection problem of hundreds of thousands of pixels is converted into the detection problem of hundreds of pixels, and the detection speed of the cigarette outer surface character and pattern is improved on the basis of ensuring the detection quality.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a cigarette surface character and pattern detection system.
Background
The method is characterized in that characters which are used for marking brand information are printed on the outer surface of a cigarette, if more characters and patterns or less characters and patterns on the surface of the cigarette are defective cigarettes, the characters and patterns on the surface of the cigarette are detected, a machine vision system is adopted to carry out online detection on cigarette production, and then the found cigarettes with the defective characters on the surface are removed.
However, the production speed of cigarettes on the production line is close to tens of thousands of cigarettes per minute, the detection time of each cigarette is only a few milliseconds on average, if the cigarettes are processed by adopting a chip with general processing capacity, the processing speed is far from the production speed of the cigarettes, and if the cigarettes are processed by adopting a chip with high-performance processing capacity, the cost is too high.
Disclosure of Invention
In view of the above, the present invention provides a system for detecting characters and patterns on a cigarette surface, which can simultaneously achieve the speed and cost of cigarette detection.
The invention solves the technical problems by the following technical means:
a cigarette surface character and pattern detection system comprises a conveying device and an industrial camera arranged on the conveying device, wherein a shielding strip is adhered to one end, facing the conveying device, of the industrial camera, a processing device is electrically connected with the industrial camera, and a pneumatic removing device is electrically connected with the processing device and is arranged on the conveying device; the industrial camera comprises a camera body and a cover body, wherein the camera body is electrically connected with the processing equipment, the cover body is detachably connected with the camera body, the cover body is positioned between the camera body and the conveying equipment, and the shielding strip is adhered to the cover body.
Furthermore, the detection system further comprises a first lighting device and a second lighting device, the first lighting device and the second lighting device are irradiated on the conveying device at an included angle, the number of the industrial cameras is two, and the two industrial cameras are respectively located on the refraction lines of the first lighting device and the second lighting device.
Furthermore, the processing equipment comprises a median filter and a chip assembly, the median filter is electrically connected with the industrial camera, the chip assembly is electrically connected with the median filter, and the pneumatic removing equipment is electrically connected with the chip assembly.
Furthermore, the processing equipment further comprises a binarization processor, the binarization processor is electrically connected with the median filter, and the chip assembly is electrically connected with the binarization processor.
Furthermore, the chip assembly comprises a data conversion chip and a threshold value judgment chip, the data conversion chip is electrically connected with the binarization processor, the threshold value judgment chip is electrically connected with the data conversion chip, and the pneumatic removing equipment is electrically connected with the threshold value judgment chip.
Further, pneumatic rejection device includes compressed air source, trachea, solenoid valve and air cock, and compressed air source installs on transfer apparatus, tracheal one end and compressed air source intercommunication, the end of giving vent to anger of air cock is installed on the trachea towards transfer apparatus, solenoid valve, and the quantity of air cock is many, and many air cocks evenly set up on the trachea, are equipped with the valve between the two adjacent tracheas.
The invention has the beneficial effects that:
firstly, the lens part of the industrial camera is shielded by the shielding strip, so that the industrial camera only shoots the part of the region of the character and pattern on the outer surface of the cigarette, which is easy to make mistakes, the original detection problem of hundreds of thousands of pixels is converted into the detection problem of hundreds of pixels, and the detection speed of the character and pattern on the outer surface of the cigarette is improved on the basis of ensuring the detection quality.
Secondly, the invention sticks the shielding strips with different ideas on the covering body, and then connects the corresponding covering body on the camera body, so as to be convenient for carrying out the continuity of various cigarettes with different characters and patterns.
The cigarette surface character patterns on the impurity conveying equipment are irradiated by the first lighting equipment and the second lighting equipment at an included angle, so that when the cigarette is detected, two industrial cameras simultaneously obtain photos with different refraction angles, and after differential comparison, the photos are uploaded to processing equipment to be compared with a standard value, and the effect of improving the detection precision is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a cigarette surface text and pattern detection system according to the present invention;
FIG. 2 is an enlarged view of a portion of the industrial camera of the present invention;
FIG. 3 is a schematic diagram of the circuit configuration of the processing apparatus of the present invention;
wherein: 100-detection system, 10-conveying device, 11-groove, 20-industrial camera, 21-camera body, 22-cover adding body, 30-shielding strip, 40-processing device, 41-median filter, 42-binarization processor, 43-chip component, 431-data conversion chip, 432-threshold value determination chip, 50-pneumatic removing device, 51-compressed air source, 52-air pipe, 53-solenoid valve, 54-air nozzle, 55-valve, 60-first lighting device and 70-second lighting device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the cigarette surface character and pattern detection system 100 of the present invention includes a transmission device 10 for transmitting cigarettes, the transmission device 10 is made by a motor driving a rotation roller to rotate, the rotation roller driving a transmission belt to rotate, an arc-shaped groove 11 is provided on the outer surface of the transmission belt, the produced cigarettes are placed in the groove 11 for transmission, the side of the outer surface of the cigarettes on which the character and pattern is printed is upward, and the groove 11 can prevent the cigarettes from sliding and rolling freely.
An industrial camera 20 is fixed above the conveying device 10, the industrial camera 20 is of a CCD type, a lens of the industrial camera 20 faces a cigarette character pattern, a shielding strip 30 is adhered to the lens of the industrial camera 20, the shielding strip 30 shields a part of the area of the lens of the industrial camera 20, so that the industrial camera 20 only photographs places where steel marks are prone to error at the intersection of strokes and the end of strokes of the cigarette character pattern on the surface, then the photographs are transmitted to a processing device 40 to be compared with preset standard data, the processing device 40 selects a computer in the embodiment, when the photographed photographs do not accord with the standard data, the processing device 40 sends an execution signal to a pneumatic removing device 50, and the pneumatic removing device 50 starts to screen out defective cigarettes. The lens part of the industrial camera 20 is shielded by the shielding strip 30, so that the industrial camera 20 only photographs the error-prone partial region on the character and pattern on the outer surface of the cigarette, the original detection problem of hundreds of thousands of pixels is converted into the detection problem of hundreds of pixels, and the detection speed of the character and pattern on the outer surface of the cigarette is improved on the basis of ensuring the detection quality. For example, when the cigarette brand is "Tianzi", the character and pattern on the outer surface of the cigarette are two characters of "Tianzi", the place where the two characters of "Tianzi" are easy to make mistakes is generally the intersection of the strokes and the tail falling place of the strokes, and at this time, the shielding strip 30 can be used to shield part of the lens of the industrial camera 20, so that the industrial camera 20 only needs to plate the license plate at the intersection of the strokes and the tail falling place of the strokes where the "Tianzi" is easy to make mistakes. Therefore, the shape of the shielding strip 30 changes along with the character and pattern on the outer surface of the cigarette, and the shielding strip 30 with one shape corresponds to the detection of the character and pattern on the outer surface of the cigarette with one brand.
Specifically, the industrial camera 20 includes a camera body 21 and a capping body 22, the camera body 21 is electrically connected to the processing device 40, the capping body 22 is in threaded connection with the camera body 21, the capping body 22 is located between the camera body 21 and the conveying device 10, and the shielding strip 30 is adhered to the capping body 22; the characters and patterns of different brands are different, for example, the characters and patterns displayed by two brands of "Tianzi cigarette" and "Hibiscus king" are different, so the shapes of the shielding strips 30 required are also different, the shielding strips 30 with different shapes are pasted on the cover bodies 22 in advance, and when the brands detected by the cigarettes change, the cover bodies 22 pasted with the corresponding shapes shielding strips 30 are replaced on the camera body 21.
Specifically, the detection system 100 further includes a first lighting device 60 and a second lighting device 70, the first lighting device 60 and the second lighting device 70 are illuminated on the conveying device 10 at an included angle, the included angle between the first lighting device 60 and the cigarette is an acute angle, the number of the industrial cameras 20 is two, and the two industrial cameras 20 are respectively located on the refraction lines of the first lighting device 60 and the second lighting device 70. During cigarette detection, two industrial cameras 20 obtain photos with different refraction angles at the same time, and the photos are uploaded to a processing device 40 to be compared with a standard value after differential comparison, so that the effect of improving detection precision is achieved.
Specifically, the processing device 40 includes a median filter 41, a binarization processor 42 and a chip component 43, the median filter 41 is electrically connected to the industrial camera 20, the median filter 41 is a non-linear digital filter, and is capable of removing speckle noise and salt and pepper noise in an image, and transmitting a picture taken by the industrial camera 20 to the binarization processor 42 after performing noise reduction processing on the picture. The binarization processor 42 is electrically connected to the median filter 41, and the chip module 43 is electrically connected to the binarization processor 42. The binarization processor 42 performs binarization processing on the image, and highlights areas which are easy to generate steel seal errors on the image, so that the important areas in the image can be positioned more accurately when the chip assembly 43 receives the image information, and the detection precision is further improved. The chip assembly 43 comprises a data conversion chip 431 and a threshold value determination chip 432, the data conversion chip 431 is electrically connected with the binarization processor 42, the threshold value determination chip 432 is electrically connected with the data conversion chip 431, and the pneumatic removing device 50 is electrically connected with the data conversion chip 431. The model SN74LV161APER is adopted by the data conversion chip 431, and the model SN74LVC1G08DCKR is adopted by the threshold value judgment chip 432. After the image signal transmitted from the binarization processor 42 is received by the data conversion chip 431, the image information is converted into a data signal, and the data signal is transmitted to the threshold value determination chip 432 to be compared with the standard data. The pneumatic removing device 50 is electrically connected with the threshold value judging chip 432, and when the data received by the threshold value judging chip 432 does not accord with the standard data, the pneumatic removing device 50 is started to remove the defective cigarette from the transmission belt in response. Pneumatic rejection equipment 50 includes compressed air source 51, trachea 52, solenoid valve 53 and air cock 54, and compressed air source 51 installs on transfer apparatus 10, and the one end and the compressed air source 51 intercommunication of trachea 52, solenoid valve 53 are installed on trachea 52, and the quantity of air cock 54 is five, and five air cocks 54 evenly set up the one end of keeping away from compressed air source 51 at trachea 52, are equipped with valve 55 between two adjacent air cocks 54. The solenoid valve 53 is connected with the processing equipment 40 through a PLC, when the processing equipment 40 sends out a signal for executing when recognizing that the received image information is not in accordance with the standard data, the solenoid valve 53 is opened, the compressed air source 51 is an air compressor, high-pressure air in the air pipe 52 is sprayed out from the air nozzle 54, one end of the air outlet of the air nozzle 54 faces to a groove of a transmission belt, a through hole is formed in the groove, and the high-pressure air is sprayed out from the bottom of the groove to push out cigarettes with defects in the groove.
After the use time is longer, the detection precision of the whole set of detection equipment is reduced to some extent, the valve 55 can be adjusted to be opened and closed, when a cigarette with a defective surface character pattern is found, a plurality of cigarettes around the cigarette are simultaneously removed, and the cigarettes with the defective surface character pattern can be reduced to enter the market.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (6)
1. A cigarette surface characters and patterns detecting system which characterized in that: the device comprises a conveying device and an industrial camera arranged on the conveying device, wherein a shielding strip is adhered to one end, facing the conveying device, of the industrial camera, the industrial camera is electrically connected with a processing device and a pneumatic removing device electrically connected with the processing device, and the pneumatic removing device is arranged on the conveying device; the industrial camera comprises a camera body and a cover body, wherein the camera body is electrically connected with processing equipment, the cover body is detachably connected with the camera body, the cover body is located between the camera body and conveying equipment, and the shielding strip is adhered to the cover body.
2. The cigarette surface character and pattern detection system according to claim 1, wherein: the detection system further comprises a first lighting device and a second lighting device, the first lighting device and the second lighting device are irradiated on the conveying device at included angles, the number of the industrial cameras is two, and the two industrial cameras are respectively located on the refraction lines of the first lighting device and the second lighting device.
3. The cigarette surface character and pattern detection system according to claim 2, characterized in that: the processing equipment comprises a median filter and a chip assembly, the median filter is electrically connected with the industrial camera, the chip assembly is electrically connected with the median filter, and the pneumatic removing equipment is electrically connected with the chip assembly.
4. The cigarette surface character and pattern detection system according to claim 3, wherein: the processing equipment further comprises a binarization processor, the binarization processor is electrically connected with the median filter, and the chip assembly is electrically connected with the binarization processor.
5. The cigarette surface character and pattern detection system according to claim 4, wherein: the chip assembly comprises a data conversion chip and a threshold value judgment chip, the data conversion chip is electrically connected with the binarization processor, the threshold value judgment chip is electrically connected with the data conversion chip, and the pneumatic removing equipment is electrically connected with the threshold value judgment chip.
6. The cigarette surface character and pattern detection system according to any one of claims 1 to 5, wherein: pneumatic rejection equipment includes compressed air source, trachea, solenoid valve and air cock, compressed air source installs on transfer apparatus, tracheal one end and compressed air source intercommunication, the end of giving vent to anger of air cock is towards transfer apparatus, the solenoid valve is installed on the trachea, the quantity of air cock is many, many the air cock evenly sets up on the trachea, is equipped with the valve between the double-phase adjacent trachea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011103830.9A CN112149657A (en) | 2020-10-15 | 2020-10-15 | Cigarette surface character and pattern detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011103830.9A CN112149657A (en) | 2020-10-15 | 2020-10-15 | Cigarette surface character and pattern detection system |
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| Publication Number | Publication Date |
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| CN112149657A true CN112149657A (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011103830.9A Pending CN112149657A (en) | 2020-10-15 | 2020-10-15 | Cigarette surface character and pattern detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231308A (en) * | 2021-05-08 | 2021-08-10 | 安徽银汉机电科技有限公司 | Empty head and mouth missing detector for tobacco processing |
-
2020
- 2020-10-15 CN CN202011103830.9A patent/CN112149657A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231308A (en) * | 2021-05-08 | 2021-08-10 | 安徽银汉机电科技有限公司 | Empty head and mouth missing detector for tobacco processing |
| CN113231308B (en) * | 2021-05-08 | 2024-04-26 | 安徽银汉机电科技有限公司 | Empty head and mouth-missing detector for tobacco processing |
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