CN115452850A - Infusion bag imaging system - Google Patents
Infusion bag imaging system Download PDFInfo
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- CN115452850A CN115452850A CN202211144999.8A CN202211144999A CN115452850A CN 115452850 A CN115452850 A CN 115452850A CN 202211144999 A CN202211144999 A CN 202211144999A CN 115452850 A CN115452850 A CN 115452850A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
- F21V19/0055—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by screwing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/15—Adjustable mountings specially adapted for power operation, e.g. by remote control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/34—Supporting elements displaceable along a guiding element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/9081—Inspection especially designed for plastic containers, e.g. preforms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/155—Coordinated control of two or more light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/403—Lighting for industrial, commercial, recreational or military use for machines
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- Immunology (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses an infusion bag imaging system, which belongs to the technical field of image processing and comprises a detection carrier, an illumination array mechanism, a camera, an industrial personal computer and a PLC (programmable logic controller); the detection carrier is located right above the illumination array mechanism, the camera and the illumination array mechanism are controlled to be matched with each other through a PLC (programmable logic controller), the PLC is respectively connected with the detection carrier, the illumination array mechanism and the industrial personal computer, and the industrial personal computer is respectively connected with the camera and the PLC. The intelligent detection system has the advantages that the intelligent detection system has strong detection compatibility aiming at foreign matters in transparent infusion bags with different filling amounts and different shapes, and potential damage to the infusion bags is reduced by detecting the foreign matters in the infusion bags in a flat lying mode; the infusion bag detection bottleneck of 500ml and above charge can be effectively broken through, the mixed line production products of different charge specifications and different shapes can be simultaneously detected, the image acquisition after the bright and dark background switching is completed at the same station is realized, the space and the number of cameras and industrial personal computers are saved, and the detection efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of image processing, and particularly relates to an infusion bag imaging system.
Background
The foreign matter detection rule of the transfusion liquid cannot contain any fixed particles or suspended matters which can be seen by naked eyes, such as precipitates, glass chips, fibers and other foreign matters, and the minimum size of the recognized foreign matters can reach 50um. Once the unqualified product containing foreign matters is delivered into the body of a patient, immeasurable risks are brought to the life safety and health of the patient, and the safety and health of the infusion patient are seriously harmed, so that the foreign matters in the infusion liquid must be strictly checked in order to ensure the medication safety.
However, the prior infusion bag has different filling amounts of 50ml to 4000ml due to the requirement of the production process, the appearance shapes of different pharmaceutical factories are different, and even some production lines need to carry out mixed production on the transparent infusion bag, so that the same production line can produce products with different filling amounts, and even the transparent infusion bags with the same specification have different shapes. Under the condition of common illumination, shadow areas appear on the edges of the infusion bag, foreign matter imaging in the shadow areas is submerged by the background, and pictures with high enough contrast cannot be provided for image recognition software. Therefore, the edges of many infusion bags cannot be detected, and if the shapes of the infusion bags are changed, the detection difficulty of foreign matters on the edges of different infusion bags is higher.
The individual light inspection equipment adopts a rotary emergency stop mode for detection, so that foreign matters on the edge of the infusion bag are gathered to the center of the infusion bag to realize detection. But infusion bag material itself is soft, and the drawback of rotatory detection mode has just prominently shown: the rotation can distort and deform the infusion bag to influence imaging; more importantly, the infusion bag with the filling capacity of more than 100ml is influenced by the self weight of the filled liquid, the deformation of the bag body is more serious, the damage to the hanging part of the infusion bag due to rotation is larger, the damage and leakage of the infusion bag are easily caused, the detection mode of the hanging infusion bag is not suitable for the detection of a large-capacity transparent infusion bag, and no detection equipment can detect products with the filling capacity of more than 500ml at present. Therefore, a flat lying imaging detection system compatible with transparent infusion bags with different loading amounts and different shapes is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the infusion bag imaging system provided by the invention can realize the imaging of transparent liquid bags with different sizes, shapes and thicknesses; so as to reduce the imaging blind area of the liquid bag; the contrast of foreign matters in the image with the background is increased, and the detection requirement is met; the invention has light structural design, reduces the inertia of the detection module, and increases and decreases the detection efficiency and stability.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: an infusion bag imaging system comprises a detection carrier, an illumination array mechanism, a camera, an industrial personal computer and a PLC;
the detection carrier is located right above the illumination array mechanism, the camera and the illumination array mechanism are controlled to run in a mutually matched mode through a PLC, the PLC is respectively connected with the detection carrier, the illumination array mechanism and an industrial personal computer, and the industrial personal computer is connected with the camera.
The beneficial effects of the invention are: the invention designs an intelligent detection system with strong detection compatibility for foreign matters in transparent infusion bags with different filling amounts and different shapes through a detection carrier, an illumination array mechanism, a camera, an industrial personal computer and a PLC (programmable logic controller); the invention reduces the potential damage to the infusion bag by detecting the way that the infusion bag lies flat; the invention can effectively break through the detection bottleneck of infusion bags with the filling amount of 500ml or more, realize the simultaneous detection of products produced by mixed lines with different filling amounts, specifications and shapes, realize the image acquisition after the bright background and the dark background are switched at the same station, save the space and the number of cameras and industrial personal computers, and improve the detection efficiency.
Further, the detection carrier comprises metal workpieces at two ends, a vertical connecting piece, a diffuse reflection plate, a top reinforced connection reflection plate, a bottom toughened glass tray and a toughened glass fixing block;
the both ends metal worked piece is through the recess and the vertical connecting piece cooperation of taking the screw to utilize the screw fixation, diffuse reflection board and both ends metal worked piece are through the recess cooperation of taking the screw to utilize the screw fixation, the top reinforcement is connected the top inclined plane cooperation of reflector panel and both ends metal worked piece, and is utilized the screw fixation, bottom toughened glass tray passes through the through-hole and cooperates with both ends metal worked piece, the toughened glass fixed block passes through the through-hole and cooperates with bottom toughened glass tray to utilize the screw to pass bottom toughened glass tray and toughened glass fixed block to fix on both ends metal worked piece.
The beneficial effects of the above further scheme are: through above scheme, let the image area bigger, the imaging definition is higher, the formation of image blind area is littleer, can end the whole imaging detection system and traditional link joint structure, chain structure, lead screw structure or guide rail structure's transport mechanism height match, has created a new detecting system, and this kind of new detecting system is higher than traditional lamp and has examined system efficiency, stability is stronger, the compatibility is better.
Still further, the length, width and height of the detection carrier are larger than the size of the infusion bag, and the infusion bag is arranged inside the detection carrier.
The beneficial effects of the further scheme are as follows: according to the invention, the infusion bag is arranged in the detection carrier, and the potential damage to the infusion bag is reduced by detecting the infusion bag in a lying manner.
Still further, the illumination array mechanism comprises an array light source support bottom plate, an array light source support side plate, a vertical irradiation linear light source fixing part, a bottom plate light source fixing part, a side irradiation strip light source, a side irradiation strip light fixing part, a side irradiation strip light angle adjusting part, a light source controller, a background switching bottom plate, a background switching slide rail, a background switching slide block, a background switching connecting part, a background switching cylinder and a background switching cylinder support frame;
the array light source support bottom plate is connected with the array light source support side plate through screws, the vertical irradiation linear light source is connected with the vertical irradiation linear light source fixing piece through screws, the vertical irradiation linear light source fixing piece is connected with the array light source support bottom plate through screws, the bottom plate light source and the bottom plate light source fixing piece are in threaded fit and fixed through screws, the bottom plate light source fixing piece is matched on a step of the vertical irradiation linear light source fixing piece and fixed through screws, the side irradiation linear light fixing piece is fixed with a back connecting groove of the side irradiation linear light source through screws, the side irradiation linear light fixing piece is matched with a side plate of the array light source support through screw holes and fixed through screws, the background switching slide rail is matched with the array light source support side plate through screw holes and fixed through screws, the background switching slide block runs linearly on a background switching slide rail, the background switching bottom plate is matched with the background switching slide block through screw holes and connected with a background switching slide block through screws, the background switching connecting piece is matched with the background switching bottom plate through screw holes and fixed through screws, the background switching slide block is connected with a background switching cylinder through a background switching cylinder, and the background switching cylinder is connected with a background switching cylinder through screw;
the light source controller controls the bottom plate light source, the side irradiation strip-shaped light source and the vertical irradiation linear light source to emit light;
the camera is fixed right above the illumination array mechanism through a camera array bracket.
The beneficial effects of the further scheme are as follows: through above scheme, can make light source control range bigger, illumination is more even, and the formation of image blind area is littleer, and furthest lets various foreign matters can both highlight characteristic information.
Furthermore, the array light source support bottom plate and the array light source support side plate are both subjected to local hollow weight reduction treatment.
The beneficial effects of the further scheme are as follows: through the scheme, the whole light source is more sufficient in installation space, and the installation of light sources of different models is compatible, so that the whole weight of the equipment is reduced, and the installation and maintenance are convenient.
Still further, the illumination array mechanism comprises a dark background working position and a bright background working position;
aiming at the situation that the background switching bottom plate completely covers the bottom plate light source, and when the light of the bottom plate light source cannot penetrate through the background switching bottom plate, the lighting array mechanism is in a dark background working position;
when the background switching bottom plate does not shield light above the bottom plate light source, the illumination array mechanism is processed at a bright background working position.
The beneficial effects of the above further scheme are: according to the invention, the dark background working position and the bright background working position are arranged on the lighting array mechanism, so that image acquisition after bright and dark background switching is completed at the same station, the space, the number of cameras and industrial personal computers are saved, and the detection efficiency is improved.
Still further, the camera is used by matching a high-resolution camera and a macro lens.
The beneficial effects of the above further scheme are: the invention can realize the depth of field requirement of detection with the loading of more than 500ml by matching the high-resolution camera and the macro lens, overcomes the defect of insufficient depth of field of imaging of the traditional detection system, and ensures that the whole liquid bag can be imaged clearly.
Still further, the parameters of the high resolution camera and the macro lens satisfy the following conditions:
ΔL＝ΔL1+ΔL2
ΔL1＝FδL2/(f2+FδL)
ΔL2＝FδL2/(f2-FδL)
where Δ L, Δ L1, and Δ L2 represent the depth of field, the front depth of field, and the rear depth of field, respectively, F represents the lens aperture value, δ represents the allowable circle diameter, L2 represents the focus distance, and F2 represents the lens focal length.
The beneficial effects of the above further scheme are: the imaging distance is controlled, the overall size of the equipment is reduced, and the defect of insufficient imaging depth of field of the traditional detection system is overcome.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic view of the inspection vehicle according to the present invention.
Fig. 3 is a schematic diagram of an array illumination mechanism of the present invention.
Fig. 4 is a schematic view of an imaging system of the present invention.
Wherein: 1-detection carrier, 101-metal workpieces at two ends, 102-vertical connecting piece, 103-diffuse reflection plate, 104-top reinforced connection reflector plate, 105-bottom toughened glass tray, 106-toughened glass fixing block, 2-lighting array mechanism, 201-array light source support bottom plate, 202-array light source support side plate, 203-vertical irradiation linear light source, 204-vertical irradiation linear light source fixing piece, 205-bottom plate light source, 206-bottom plate light source fixing piece, 207-side irradiation strip light source, 208-side irradiation strip light fixing piece, 209-side irradiation strip light angle adjusting piece, 210-light source controller, 211-background switching bottom plate, 212-background switching slide rail, 213-background switching slide block, 214-background switching connecting piece, 215-background switching cylinder, 216-background switching cylinder support frame, 3-camera, 4-industrial personal computer, 5-PLC, 6-camera array support, 7-motor and 8-transfusion bag.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1, the invention provides an infusion bag imaging system, which comprises a detection carrier 1, an illumination array mechanism 2, a camera 3, an industrial personal computer 4 and a PLC5; detect carrier 1 and be located illumination array mechanism 2 directly over, camera 3 and illumination array mechanism 2 pass through PLC5 control and match the operation each other, and PLC5 is connected with detection carrier 1, illumination array mechanism 2 and industrial computer 4 respectively, and industrial computer 4 is connected with camera 3.
In the embodiment, the invention realizes the flat lying imaging detection of the transparent infusion bags with different loading amounts and different shapes through the infusion bag imaging system, has the detection function of strong compatibility, rapidness, stability and no secondary belt damage, and meets the online detection requirements of different pharmaceutical factories on the mixed line production of various transparent infusion bags.
In this embodiment, the inspection vehicle 1 includes two-end metal workpieces 101, a vertical connector 102, a diffuse reflection plate 103, a top reinforced connection reflection plate 104, a bottom tempered glass tray 105, and a tempered glass fixing block 106; the two-end metal workpiece 101 is matched with the vertical connecting piece 102 through a groove with a screw hole and is fixed by screws, the diffuse reflection plate 103 is matched with the two-end metal workpiece 101 through a groove with a screw hole and is fixed by screws, the top part is fixedly connected with the reflection plate 104 and is matched with the top inclined plane of the two-end metal workpiece 101, and is fixed by screws, the bottom toughened glass tray 105 is matched with the two-end metal workpiece 101 through a through hole, the toughened glass fixing block 106 is matched with the bottom toughened glass tray 105 through a through hole and is fixed on the two-end metal workpiece 101 through the bottom toughened glass tray 105 and the toughened glass fixing block 106 by screws. The length, width and height of the detection carrier 1 are larger than those of the infusion bag 8, and the infusion bag 8 is arranged inside the detection carrier 1.
In the embodiment, as shown in fig. 2, the detection carrier 1 is formed by matching metal workpieces 101 at two ends with a vertical connecting piece 102 through a groove with a screw hole, and then fixing the metal workpieces 101 at the two ends by screws, wherein the metal workpieces 101 at the two ends are made of SUS304 stainless steel materials with medical requirements; the diffuse reflection plate 103 is matched with the metal workpieces 101 at the two ends through the groove and then fixed by screws; the top reinforcing connection reflecting plate 104 and the two-end metal machined parts 101 are matched through the top inclined planes of the two-end metal machined parts 101 and are fixed by screws, the top reinforcing connection reflecting plate 104 is made of SUS304 stainless steel, and double-sided mirror polishing treatment is carried out; the bottom toughened glass tray 105 is made of high-transparency, corrosion-resistant and scratch-resistant toughened glass with through holes and is matched with the metal workpieces 101 at the two ends through the through holes; the toughened glass fixing block 106 is made of SUS304 stainless steel, is matched with the bottom toughened glass tray 105 through a through hole, and finally penetrates through the toughened glass fixing block 106 and the bottom toughened glass tray 105 through screws to be fixed on the metal workpieces 101 at two ends. The whole detection carrier 1 is matched with the roller slide block on the detection conveying mechanism through the through hole on the vertical connecting piece 102 and is fixed through screws. The length, width and height of the whole detection carrier 1 are larger than the outer size of the largest infusion bag 8, the infusion bag 8 can be completely filled in the detection carrier 1, and the infusion bag 8 can be completely and effectively detected as long as the infusion bag 8 is in the detection carrier 1, so that the functions of wire mixing and compatible detection are realized.
In this embodiment, the lighting array mechanism 2 includes an array light source support bottom plate 201, an array light source support side plate 202, a vertical irradiation linear light source 203, a vertical irradiation linear light source fixing member 204, a bottom plate light source 205, a bottom plate light source fixing member 206, a side irradiation strip light source 207, a side irradiation strip light fixing member 208, a side irradiation strip light angle adjusting member 209, a light source controller 210, a background switching bottom plate 211, a background switching slide rail 212, a background switching slide block 213, a background switching connecting member 214, a background switching cylinder 215, and a background switching cylinder support frame 216; the array light source support bottom plate 201 is connected with the array light source support side plate 202 through screws, the vertical irradiation linear light source 203 is connected with the vertical irradiation line light source fixing member 204 through screws, the vertical irradiation line light source fixing member 204 is connected with the array light source support bottom plate 201 through screws, the bottom plate light source 205 is in threaded fit with the bottom plate light source fixing member 206 and is fixed by screws, the bottom plate light source fixing member 206 is fitted on the step of the vertical irradiation line light source fixing member 204 and is fixed by screws, the side irradiation strip light fixing member 208 is fixed with the back connecting groove of the side irradiation strip light source 207 through screws, the side irradiation strip light fixing member 208 is fitted with the side irradiation strip light angle adjusting member 209 through holes and is fixed by the side irradiation strip light angle adjusting member 209, the side irradiation strip-shaped light angle adjusting piece 209 is matched with the array light source support side plate 202 through a threaded hole and is fixed by screws, the background switching slide rail 212 is matched with the array light source support side plate 202 through a threaded hole and is fixed by screws, the background switching slide block 213 linearly runs on the background switching slide rail 212, the background switching bottom plate 211 is matched with the background switching slide block 213 through a screw hole and is connected by screws, the background switching connecting piece 214 is matched with the background switching bottom plate 211 through a threaded hole and is fixed by screws, the background switching cylinder support frame 216 is fixed with the array light source support bottom plate 201 through screws, and the background switching connecting piece 214 is connected with the background switching cylinder 215 through screws and runs along with the background switching cylinder 215; the light source controller 210 controls the bottom plate light source 205, the side irradiation strip light source 207 and the vertical irradiation linear light source 203 to emit light; the camera 3 is fixed right above the illumination array mechanism 2 through the camera array support 301, and the array light source support bottom plate 201 and the array light source support side plate 202 are both subjected to partial hollow weight reduction treatment.
In this embodiment, as shown in fig. 3, the array light source support bottom plate 201 is subjected to a partial hollow weight reduction process to facilitate light source installation and debugging, and is connected to the array light source support side plate 202 through a screw, and the array light source support side plate 202 is also subjected to a partial hollow weight reduction process; the vertical irradiation line-shaped light source 203 has a small light source divergence angle, so that light can be transmitted for a long distance, the vertical irradiation line light source fixing piece 204 is connected with the vertical irradiation line-shaped light source 203 through screws, and the vertical irradiation line light source fixing piece 204 is connected with the array light source support bottom plate 201 through screws; the bottom plate light source 205 and the bottom plate light source fixing piece 206 are matched through the threaded holes and then fixed through screws; the bottom plate light source fixture 206 is then fitted over the steps of the vertical illumination line light source fixture 204 and secured by screws. The side illumination strip-shaped light fixing member 208 is fixed to a back connection groove of the side illumination strip-shaped light source 207 by a screw; the side illumination bar light source fixing member 208 is fitted with the side illumination bar light source angle adjusting member 209 through a through hole, and then fixed by the side illumination bar light source angle adjusting member 209 by screws. The side irradiation strip-shaped light source angle adjusting piece 209 is matched with the array light source support side plate 202 through a threaded hole, the background switching slide rail 212 is matched with the array light source support side plate 202 through a threaded hole by screw fixation, the background switching slide block 213 is matched with the background switching slide rail 212 by screw fixation, and the background switching slide block 212 can linearly move on the background switching slide rail 212. The background switching base plate 211 is matched with the background switching slider 213 through a threaded hole and is connected through a screw. The background switching connector 214 is matched with the background switching base plate 211 through a threaded hole and is fixed through a screw. The background switching cylinder supporting frame 216 is fixed with the array light source support base plate 201 through screws, and the background switching connecting piece 214 is connected with the background switching cylinder 215 through screws and moves in a sliding mode along with the background switching cylinder 215.
In this embodiment, the illumination array mechanism 2 includes a dark background work position and a bright background work position; when the background switching base plate 211 completely covers the base plate light source 205 and the light of the base plate light source 205 cannot penetrate through the background switching base plate 211, the lighting array mechanism 2 is in a dark background working position; when the background switching backplane 211 does not block the light above the backplane light source 205, the lighting array mechanism 2 is in the bright background operating position.
In this embodiment, the array illumination mechanism 2 has only two working positions: a dark background work position and a bright background work position. The background switching bottom plate 211 completely covers the bottom plate light source 205, and when the light of the bottom plate light source 205 cannot penetrate through the background switching bottom plate 211, the background switching bottom plate is in a dark background working position; the background switching backplane 211 does not block light above the backplane light source 205 at all, which is in the bright background operating position.
In this embodiment, the camera 3 is used by matching a high resolution camera and a macro lens, and the parameters of the high resolution camera and the macro lens satisfy the following conditions:
ΔL＝ΔL1+ΔL2
ΔL1＝FδL2/(f2+FδL)
ΔL2＝FδL2/(f2-FδL)
where Δ L, Δ L1, and Δ L2 represent the depth of field, the front depth of field, and the rear depth of field, respectively, F represents the lens aperture value, δ represents the allowable circle diameter, L2 represents the focus distance, and F2 represents the lens focal length.
In the embodiment, the high-resolution camera and the macro lens are used in a matched manner, so that the depth of field requirement of detection with the loading of more than 500ml can be met, and the whole infusion bag 8 can be imaged clearly. Camera 3 passes through camera array support 6 to be fixed directly over illumination array mechanism 2, and when 3 formation of image of camera, camera formation of image target surface just can cover the region that detects carrier 1 and place infusion bag 8, ensures as long as infusion bag 8 just can make the complete formation of image of infusion bag in detecting carrier 1.
In this embodiment, when the lighting array mechanism 2 is in the bright background working position: the detection carrier 1 moves right above the illumination array mechanism 2, the bottom plate light source 205 and the bottom toughened glass tray 105 of the detection carrier 1 are right below, the light source controller 210 controls the bottom plate light source 205 to emit light, the light emitting surface of the bottom plate light source 205 completely covers the bottom toughened glass tray 105, the flat surface of the infusion bag 8 is illuminated, and the front, rear, left and right circular arc regions of the infusion bag 8 are in a dark state. The light source controller 210 controls the side irradiation strip-shaped light source 207 to emit light, and the light penetrates through the bottom toughened glass tray 105 to illuminate the front end and the rear end of the infusion bag 8 in a dark state. The light source controller 210 controls the vertical irradiation linear light source 203 to emit light, the light is upwards transmitted in the vertical direction in the gap between the detection carrier 1 and the detection carrier 1, the light path is reflected to the diffuse reflection plate 612 of the detection carrier 1 after the top of the contact mirror surface is polished and the reflection plate 104 is connected in a reinforcing mode, the light is uniformly irradiated to the left side and the right side of the infusion bag 8 through the diffuse reflection plate 612, and at the moment, the left side and the right side of the infusion bag 8 are illuminated. The length, the width and the height of the detection carrier 1 can both cover the size of the infusion bag 8, so when the illumination array mechanism 2 is in a bright background working position, the light source controller 210 controls the bottom plate light source 205, the side illumination strip-shaped light source 207 and the vertical illumination linear light source 203 to emit light simultaneously, all areas of the infusion bag 8 can be illuminated, foreign matters which can be detected in the bright background in all areas of the infusion bag 8 can have sharp contrast with the background, and the requirement of image processing is met.
In this embodiment, when the lighting array mechanism 2 is in the dark background working position: the detection carrier 1 is still arranged right above the illumination array mechanism 2 and is consistent with the working position of a bright background, the light source controller 210 closes all light sources, the PLC5 controls the background switching cylinder 215 to completely push the background switching bottom plate 211 to be right above the bottom plate light source 205, at the moment, the infusion bag 8 is in a dark state, the light source controller 210 controls the side illumination strip-shaped light source 207 to emit light, the light penetrates through the bottom toughened glass tray 105, the front end and the rear end of the infusion bag 8 in the dark state are illuminated, the background switching plate 211 is dark black, under the irradiation of the side illumination strip-shaped light source 207, the light reflected by foreign matters in the infusion bag 8 enters the camera 3 to form bright spots, the background is dark areas, the foreign matters detected in the dark background in the infusion bag 8 have bright contrast with the background, and imaging requirements are met.
In this embodiment, as shown in fig. 4, the industrial personal computer 4 and the camera 3 are placed on a base plate 9 on which the imaging system is fixed, and the illumination array mechanism 2 is located below the base plate 9 on which the imaging system is fixed. After the PLC5 controls the motor 7 to move the detection carrier 1 to a designated position right above the illumination array mechanism 2, the PLC5 controls the array light source controller 210 to start a bright background working mode to control a designated light source to emit light, the PLC5 sends an in-place command to the industrial personal computer 4, the industrial personal computer 4 sends an image acquisition command to the camera 3 after receiving the in-place command, the camera 3 starts to acquire images and sends the images back to the industrial personal computer 4, the industrial personal computer 4 sends received information of the images to the PLC5 after receiving the images, the PLC5 controls the light source controller 210 to start a dark background working mode after receiving the received information of the images to control the designated light source to emit light, and meanwhile, the PLC5 controls the background switching cylinder 215 and the background switching bottom plate 211 to reach the designated position to enable a designated imaging area to meet imaging requirements. The background switches cylinder 215 and will targets in place the signal and send PLC5, and PLC5 signals industrial computer 4, and industrial computer 4 control camera 3 gathers dark background image and gathers, and camera 3 returns industrial computer 4 with gathering the image, and industrial computer 4 sends the picture again and gathers the signal that finishes and give PLC5, and PLC5 controls motor 7 again and sends next batch of detection carrier 1 and send the assigned position directly over array lighting mechanism 2. The industrial computer 4 returns the image processing result after gathering to PLC5 simultaneously, supplies PLC5 rear end letter sorting, has realized accomplishing bright dark background switching detection achievement at same station like this, reduces the hardware cost, promotes detection efficiency.
The invention has the beneficial effects that:
1. the existing light inspection system basically aims at products with regular shapes such as glass bottles, the detection of the light inspection products of soft infusion bags is difficult to realize, and the imaging area is greatly influenced by the filling amount of an infusion bag and the shape of the infusion bag, so that the detection precision is directly influenced. The invention solves the problems of uneven imaging of the transfusion soft bag and imaging difficulty of the transfusion bag with large filling amount by the autonomous optical imaging design, and can realize detection on the transfusion bags with different irregular filling amounts and different shapes by matching with an image processing software system.
2. The lamp that current infusion soft bag detected examines system still stops the vertical mode of hanging of the bag body and places and detects, and the vertical mode of just must adopting the mode of hanging the bag or pressing from both sides the bag of placing of the bag body has potential damage to infusion bag itself, especially after infusion bag dress volume exceeded 500ml, adopts the vertical mode of hanging to place the detection more easily to damage infusion bag, causes the phenomenon of the damaged weeping of infusion bag. According to the invention, through the autonomously designed optical imaging mechanism, the infusion bag is detected in a way of lying, so that the potential damage to the infusion bag is reduced.
3. Under the influence of imaging and software algorithm, the current mode of soft infusion bag detection cannot break through the detection of infusion bags with the volume of 500ml or more. The invention breaks through the detection bottleneck of the transfusion bag with the loading of 500ml or more by the autonomous optical imaging design, the cooperation with an image processing software system and the cooperation of a high-resolution camera and a macro lens.
4. The current soft infusion bag light inspection system can only detect a single product and cannot simultaneously detect products produced by mixed lines with different loading specifications and different shapes. The invention realizes the online detection of mixed line production for products with different loading and shapes by the autonomous optical imaging design and the cooperation with an image processing software system.
5. The array illumination mechanism with the autonomous optical design can complete image acquisition after bright and dark background switching at the same station, saves space, the number of cameras and industrial personal computers, and improves detection efficiency.
6. The invention finally provides the flat lying imaging detection system of the transparent infusion bags with different filling amounts and different shapes, which has the advantages of strong product compatibility, convenient operation, full-automatic, quick and stable detection function and capability of meeting the online detection requirements of different pharmaceutical factories after the mixed production of the different transparent infusion bags.
Claims (8)
1. An infusion bag imaging system is characterized by comprising a detection carrier (1), an illumination array mechanism (2), a camera (3), an industrial personal computer (4) and a PLC (5);
detect carrier (1) and be located illumination array mechanism (2) directly over, camera (3) and illumination array mechanism (2) are through PLC (5) control mutual matching operation, PLC (5) are connected with detection carrier (1), illumination array mechanism (2) and industrial computer (4) respectively, industrial computer (4) are connected with camera (3).
2. The infusion bag imaging system according to claim 1, wherein the detection carrier (1) comprises two end metal workpieces (101), a vertical connector (102), a diffuse reflector (103), a top reinforced connection reflector (104), a bottom tempered glass tray (105), and a tempered glass fixing block (106);
both ends metal worked piece (101) are through the recess and the cooperation of vertical connecting piece (102) of taking the screw to utilize the screw fixation, diffuse reflector plate (103) and both ends metal worked piece (101) are through the recess cooperation of taking the screw to utilize the screw fixation, the cooperation of top inclined plane of reflector panel (104) and both ends metal worked piece (101) is connected in the top reinforcement, and utilizes the screw fixation, bottom toughened glass tray (105) are through-hole and both ends metal worked piece (101) cooperation, toughened glass fixed block (106) are through-hole and bottom toughened glass tray (105) cooperation to utilize the screw to pass bottom toughened glass tray (105) and toughened glass fixed block (106) to fix on both ends metal worked piece (101).
3. The infusion bag imaging system according to claim 2, wherein the length, width, and height dimensions of the test carrier (1) are larger than the dimensions of an infusion bag, and the infusion bag is placed inside the test carrier (1).
4. The infusion bag imaging system according to claim 1, wherein the illumination array mechanism (2) comprises an array light source support bottom plate (201), an array light source support side plate (202), a vertical illumination linear light source (203), a vertical illumination line light source fixing member (204), a bottom plate light source (205), a bottom plate light source fixing member (206), a side illumination strip light source (207), a side illumination strip light fixing member (208), a side illumination strip light angle adjusting member (209), a light source controller (210), a background switching bottom plate (211), a background switching slide rail (212), a background switching slide block (213), a background switching connecting member (214), a background switching cylinder (215), and a background switching cylinder support frame (216);
the array light source bracket bottom plate (201) is connected with the array light source bracket side plate (202) through screws, the vertical irradiation linear light source (203) is connected with the vertical irradiation line light source fixing part (204) through screws, the vertical irradiation line light source fixing part (204) is connected with the array light source bracket bottom plate (201) through screws, the bottom plate light source (205) is in threaded fit with the bottom plate light source fixing part (206) and is fixed by screws, the bottom plate light source fixing part (206) is matched on the step of the vertical irradiation line light source fixing part (204) and is fixed by screws, the side irradiation bar light fixing part (208) is matched with the side irradiation bar light angle adjusting part (209) through holes, the side irradiation bar light angle adjusting part (209) is fixed, the side irradiation bar light angle adjusting part (209) is matched with the array light source bracket side plate (202) through threaded holes and is fixed by screws, the background switching slider (212) is matched with the array light source bracket side plate (202) through threaded holes, the background switching slider (213) is connected with the background switching slider (213) through threaded holes and is connected with the background switching slider (213), the background switching connecting piece (214) is matched with the background switching base plate (211) through a threaded hole and is fixed through a screw, the background switching cylinder supporting frame (216) is fixed with the array light source support base plate (201) through a screw, and the background switching connecting piece (214) is connected with the background switching cylinder (215) through a screw and runs along with the background switching cylinder (215);
the light source controller (210) controls the bottom plate light source (205), the side irradiation strip light source (207) and the vertical irradiation linear light source (203) to emit light;
the camera (3) is fixed right above the illumination array mechanism (3) through a camera array bracket (301).
5. The infusion bag imaging system according to claim 4, wherein the array light source support bottom plate (201) and the array light source support side plate (202) are both partially hollowed out to reduce weight.
6. The infusion bag imaging system according to claim 5, wherein the illumination array mechanism (2) comprises a dark background work station and a light background work station;
aiming at the background, the background switching bottom plate (211) completely covers the bottom plate light source (205), and when the light of the bottom plate light source (205) can not penetrate through the background switching bottom plate (211), the illumination array mechanism (2) is in a dark background working position;
when the background switching base plate (211) does not shield light above the base plate light source (205), the illumination array mechanism (2) is processed in a bright background working position.
7. The infusion bag imaging system according to claim 6, wherein the camera (3) is adapted to be used with a high resolution camera and a macro lens.
8. The infusion bag imaging system of claim 7, wherein the parameters of the high resolution camera and the macro lens satisfy the following condition:
ΔL＝ΔL1+ΔL2
ΔL1＝FδL2/(f2+FδL)
ΔL2＝FδL2/(f2-FδL)
where Δ L, Δ L1, and Δ L2 represent the depth of field, the front depth of field, and the rear depth of field, respectively, F represents the lens aperture value, δ represents the allowable circle diameter, L2 represents the focus distance, and F2 represents the lens focal length.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211144999.8A CN115452850A (en) | 2022-09-20 | 2022-09-20 | Infusion bag imaging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211144999.8A CN115452850A (en) | 2022-09-20 | 2022-09-20 | Infusion bag imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU503287B1 (en) * | 2022-12-30 | 2024-07-01 | K/Lens Gmbh | Device and method for detecting and/or analyzing particles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU503287B1 (en) * | 2022-12-30 | 2024-07-01 | K/Lens Gmbh | Device and method for detecting and/or analyzing particles |
| WO2024141672A1 (en) * | 2022-12-30 | 2024-07-04 | K/Lens Gmbh | Apparatus and method for detecting and/or analyzing particles |
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