Aluminum plate printing monitoring system

Abstract

The invention discloses an aluminum plate printing monitoring system, which comprises an image monitoring processing module, a storage recording module, an error correction alarm module and a terminal control platform, and is characterized in that the image monitoring processing module acquires an aluminum plate conveying video on a conveying belt in real time, and intercepts an aluminum plate dynamic track picture in the video; the image monitoring and processing module identifies and analyzes the aluminum plate surface printing pattern in the aluminum plate dynamic track picture based on an image identification algorithm, and determines whether the aluminum plate surface printing pattern is correct or not; according to the aluminum plate printing monitoring system, by intercepting the dynamic track picture of the aluminum plate and performing multiple comparison and analysis on whether the printed pattern on the surface of the aluminum plate is qualified or not, system misjudgment caused by the light reflection phenomenon of the printed pattern on the surface of the aluminum plate is prevented, the system recognition precision is improved, and meanwhile, the system quality is improved. The system carries out numbering according to the acquisition time of the aluminum plate conveying video and the conveying sequence of the aluminum plates, determines the fixed pointing relation between the number of the aluminum plate conveying video and the number of the aluminum plates, can quickly position defective products, and improves the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of aluminum plate printing monitoring technology, and specifically to an aluminum plate printing monitoring system. Background Technology

[0002] Aluminum plate printing is a surface decoration and functional treatment technology that prints graphics on the surface of aluminum metal sheets. It typically uses processes such as offset printing, gravure printing, screen printing, or digital inkjet printing to accurately transfer designed patterns, colors, logos, or functional coatings onto a pre-treated (e.g., cleaning, passivation) aluminum plate substrate. The printed aluminum plate not only has an aesthetically pleasing decorative effect, giving products brand recognition and artistic value, but can also achieve protective functions such as weather resistance, corrosion resistance, and scratch resistance, or specific properties (e.g., conductivity, insulation) through special inks. It is widely used in building curtain walls, ceilings, home appliance panels, signage, packaging containers, and electronic device housings.

[0003] However, when printing on aluminum plates, most existing printing monitoring systems use visual sensors to detect whether the printed pattern on the aluminum plate surface is qualified, so as to handle unqualified products in a timely manner and prevent unqualified products from being mixed with qualified products. However, the pattern on the aluminum plate surface is affected by external light and produces a reflective phenomenon, which can cause the visual sensor to misjudge. This can easily lead to unqualified products flowing into qualified products or qualified products being judged as unqualified, affecting the production yield and efficiency.

[0004] Therefore, there is an urgent need for an aluminum plate printing monitoring system that can quickly locate defective products and has high identification accuracy, in order to solve the problems mentioned in the background art. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, this invention provides an aluminum plate printing monitoring system. By capturing dynamic trajectory images of the aluminum plate, multiple comparisons and analyses are performed to determine whether the printed pattern on the aluminum plate surface is qualified. This prevents misjudgment caused by reflections due to external lighting affecting the printed pattern on the aluminum plate surface, thus improving the system's recognition accuracy and efficiency. Simultaneously, the system assigns numbers based on the acquisition time of the aluminum plate conveying video and the conveying sequence of the aluminum plates, establishing a fixed directional relationship between the aluminum plate conveying video number and the aluminum plate number. This enables rapid location of defective products, improving production efficiency and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An aluminum plate printing monitoring system includes: an image monitoring and processing module, a storage and recording module, an error correction and alarm module, and a terminal control platform. The image monitoring and processing module acquires real-time video of aluminum plates conveying on a conveyor belt and captures images of the dynamic trajectory of the aluminum plates within the video. Based on an image recognition algorithm, the module identifies and analyzes the printed patterns on the aluminum plate surface in the dynamic trajectory images to confirm the correctness of the printed patterns. The storage and recording module records the aluminum plate conveying video in real-time, assigning numbers based on the acquisition time and conveying sequence of the aluminum plates, and establishing a fixed relationship between the video number and the aluminum plate number. The error correction and alarm module receives error signals from the image monitoring and processing module regarding the printed patterns on the aluminum plate surface, identifies the aluminum plate conveying video and its number containing the error information, and confirms the aluminum plate with the incorrect printed pattern based on the fixed relationship between the video number and the aluminum plate number. The terminal control platform displays the aluminum plate conveying video on a screen for staff to view.

[0008] Preferably, the image monitoring and processing module includes an image acquisition unit and an image processing unit. The image acquisition unit includes a camera mounted on the conveyor belt, which captures real-time video of the aluminum plate being transported above the conveyor belt. The image processing unit tracks the movement trajectory of the aluminum plate in the video of the aluminum plate being transported using optical flow, captures dynamic trajectory images of the aluminum plate, identifies and analyzes the printed patterns on the surface of the aluminum plate in multiple dynamic trajectory images, and confirms whether the printed patterns on the surface of the aluminum plate are correct.

[0009] Preferably, the storage and recording module includes: a data storage unit, an image counting and editing unit, and an aluminum plate counting and editing unit. The data storage unit records the system operation data in real time and logs the operation data for staff to view. The image counting and editing unit numbers the aluminum plates according to the acquisition time of the aluminum plate conveying video to obtain the aluminum plate conveying video number. The aluminum plate counting and editing unit numbers the aluminum plates according to the conveying sequence to obtain the aluminum plate number.

[0010] Preferably, the data storage unit is a database, which pre-stores various printed pattern information. The image monitoring and processing module identifies and analyzes the printed patterns on the aluminum plate surface based on the printed pattern information in the selected database.

[0011] Preferably, the error correction alarm module includes: a single error alarm unit, a continuous error alarm unit, and an audible and visual warning unit. The single error alarm unit receives the error signal of the printed pattern on the aluminum plate surface transmitted by the image monitoring and processing module, confirms the aluminum plate conveying video and aluminum plate conveying video number containing the error information, and identifies the aluminum plate with the erroneous printed pattern based on the fixed pointing relationship between the aluminum plate conveying video number and the aluminum plate number. The continuous error alarm unit confirms whether the printed pattern error occurs continuously based on the aluminum plate number. If three consecutive printed pattern errors occur, the continuous error alarm unit drives the audible and visual warning unit to alert personnel to check if the printing equipment is malfunctioning.

[0012] Preferably, the sound and light warning unit includes a sound and light alarm. When three consecutive incorrect printed patterns appear on the surface of the aluminum plate, the sound and light alarm will sound a buzzer and light alarm to the staff.

[0013] Preferably, the terminal control platform remotely connects to the printer, the printer prints the aluminum plate number, and the staff pastes the aluminum plate number onto the aluminum plate tooling plate to realize the aluminum plate numbering.

[0014] Compared with existing technologies, the advantages of this invention are as follows: The aluminum plate printing monitoring system proposed in this invention uses an image acquisition unit to capture real-time video of aluminum plates being transported on a conveyor belt, obtaining image information of the printed patterns on the surface of each aluminum plate. The image processing unit extracts dynamic trajectory images of the aluminum plates from the transport video, and performs multiple comparisons and analyses to determine whether the printed patterns on the aluminum plate surface are qualified. This prevents misjudgment caused by reflections due to external lighting affecting the printed patterns on the aluminum plate surface, thus improving the system's recognition accuracy and efficiency. Simultaneously, the image counting and editing unit numbers the aluminum plate transport video according to the acquisition time, obtaining an aluminum plate transport video number. The aluminum plate counting and editing unit also numbers the aluminum plates according to the transport sequence, obtaining an aluminum plate number. The single error alarm unit receives the error signal of the printed pattern on the aluminum plate surface transmitted by the image processing unit, confirms the aluminum plate transport video and aluminum plate transport video number containing the error information, and quickly locates defective products based on the fixed pointing relationship between the aluminum plate transport video number and the aluminum plate number, thereby improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a structural block diagram of an aluminum plate printing monitoring system according to an embodiment of the present invention;

[0016] Figure 2 This is a flowchart of an aluminum plate printing monitoring system according to an embodiment of the present invention. Detailed Implementation

[0017] In the description of this invention, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0018] Combination Figures 1-2 As shown, an aluminum plate printing monitoring system includes: an image monitoring and processing module, a storage and recording module, an error correction and alarm module, and a terminal control platform. The image monitoring and processing module includes an image acquisition unit and an image processing unit. The image acquisition unit includes a camera positioned above a conveyor belt, which captures real-time video of aluminum plates being transported on the conveyor belt. The image processing unit tracks the movement trajectory of the aluminum plates in the transport video using optical flow, extracts dynamic trajectory images of the aluminum plates, identifies and analyzes the printed patterns on the aluminum plate surface in multiple dynamic trajectory images, and confirms the correctness of the printed patterns. The camera positioned above the conveyor belt captures real-time video of the aluminum plates being transported on the conveyor belt and uploads the video to the system. The system acquires image information of the printed patterns on the surface of each aluminum plate. Simultaneously, the system uses the image processing unit to extract dynamic trajectory images of the aluminum plates from the transport video, performing multiple comparisons and analyses to determine the quality of the printed patterns on the aluminum plate surface. This prevents misjudgment caused by reflections due to external lighting affecting the printed patterns on the aluminum plate surface, thus improving the system's recognition accuracy and efficiency.

[0019] In one embodiment, the storage and recording module includes: a data storage unit, an image counting and editing unit, and an aluminum plate counting and editing unit. The data storage unit records system operation data in real time, creating an operation data log for staff to view. The image counting and editing unit assigns an aluminum plate conveying video number based on the acquisition time of the video. The aluminum plate counting and editing unit assigns an aluminum plate number based on the conveying order. The image counting and editing unit and the aluminum plate counting and editing unit assign numbers based on the acquisition time of the video and the conveying order, establishing a fixed relationship between the video number and the aluminum plate number. This allows for rapid location of defective aluminum plates. Specifically, the system acquires multiple aluminum plate conveying videos and assigns them numbers according to the acquisition time. Videos 1, 2, 3, 4...n are displayed. Simultaneously, based on the conveyor belt's aluminum plate transport sequence, the aluminum plates are numbered as aluminum plate 1, aluminum plate 2, aluminum plate 3, aluminum plate 4...n. This identifies the aluminum plate in video 1 as aluminum plate 1, the aluminum plate in video 2 as aluminum plate 2, the aluminum plate in video 3 as aluminum plate 3, the aluminum plate in video 4 as aluminum plate 4, and so on, until the aluminum plate in video n is identified as aluminum plate n. When the system detects that the printed pattern on the surface of the aluminum plate in video n is defective, it can quickly identify aluminum plate n as a defective product, preventing defective products from being mixed with qualified products. Furthermore, determining the location of defective products through numbering not only facilitates the later identification and unified processing of defective aluminum plates but also prevents qualified aluminum plates from stopping on the conveyor belt awaiting processing, reducing equipment downtime and improving production efficiency.

[0020] In one embodiment, the error correction alarm module includes: a single error alarm unit, a continuous error alarm unit, and an audible and visual warning unit. The single error alarm unit receives an error signal from the image monitoring and processing module regarding the printed pattern on the aluminum plate surface, confirms the aluminum plate conveying video and its number containing the error information, and identifies the aluminum plate with the erroneous printed pattern based on the fixed pointing relationship between the video number and the aluminum plate number. The continuous error alarm unit confirms whether the printed pattern error occurs consecutively based on the aluminum plate number. If three consecutive printed pattern errors occur, the audible and visual warning unit alerts the operator to check for malfunctions in the printing equipment. The system receives the error signal from the image monitoring and processing module and displays the printed pattern on the aluminum plate surface. The error signal for the printed pattern is transmitted to the single error alarm unit. The single error alarm unit confirms the aluminum plate conveying video and aluminum plate conveying video number containing the error information. Based on the fixed pointing relationship between the aluminum plate conveying video number and the aluminum plate number, it identifies the aluminum plate with the erroneous printed pattern and feeds the erroneous aluminum plate number back to the system for recording, preventing omissions during subsequent processing of defective products. At the same time, the system checks whether three consecutive aluminum plates with erroneous printed patterns have the same number. If three consecutive aluminum plates with erroneous printed patterns have the same number, the continuous error alarm unit transmits the continuous printing error signal to the audible and visual alarm unit. The audible and visual alarm unit issues a buzzer and light alarm to the staff, alerting them to check whether the printing equipment is malfunctioning.

[0021] In one embodiment, the data storage unit is a database, which pre-stores various printing pattern information. The image monitoring and processing module identifies and analyzes the printing pattern on the aluminum plate surface based on the selected printing pattern information in the database. The system selects the aluminum plate printing pattern identification information for this monitoring based on the various printing pattern information pre-stored in the database, and identifies and analyzes the printing pattern on the aluminum plate surface based on the selected printing pattern information, thereby realizing the transformation of various aluminum plate printing patterns.

[0022] In one embodiment, the terminal control platform remotely connects to the printer, which prints the aluminum plate number. The worker then pastes the aluminum plate number onto the aluminum plate fixture to achieve the aluminum plate numbering. The terminal control platform transmits the aluminum plate number edited by the system to the printer for paper printing. The worker then pastes the paper aluminum plate number onto the corresponding numbered aluminum plate fixture to achieve rapid positioning of the aluminum plate.

[0023] The aluminum plate printing monitoring system proposed by the present invention uses an image acquisition unit to capture the aluminum plate conveying video on the conveyor belt in real time, obtain the image information of the printed patterns on the surfaces of each aluminum plate, and the image processing unit intercepts the dynamic trajectory pictures of the aluminum plates in the aluminum plate conveying video, and multiple comparisons and analyzes whether the printed patterns on the aluminum plate surfaces are qualified, preventing misjudgment of the system caused by the reflection phenomenon of the printed patterns on the aluminum plate surfaces affected by external lights, improving the recognition accuracy and efficiency of the system. At the same time, the image counting and editing unit numbers according to the acquisition time of the aluminum plate conveying video to obtain the aluminum plate conveying video number, and the aluminum plate counting and editing unit numbers according to the conveying order of the aluminum plates to obtain the aluminum plate number. The single error alarm unit receives the error signal of the printed pattern on the aluminum plate surface transmitted by the image processing unit, confirms the aluminum plate conveying video and the aluminum plate conveying video number with the error information of the printed pattern on the aluminum plate surface, and quickly locates the defective products according to the fixed pointing relationship between the aluminum plate conveying video number and the aluminum plate number, improving the production efficiency.

[0024] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An aluminum plate printing monitoring system, characterized in that, include: The system comprises an image monitoring and processing module, a storage and recording module, an error correction and alarm module, and a terminal control platform. The image monitoring and processing module acquires real-time video of aluminum plates being transported on a conveyor belt and extracts images of the dynamic trajectory of the aluminum plates from the video. Based on an image recognition algorithm, the module identifies and analyzes the printed patterns on the aluminum plate surfaces in the dynamic trajectory images to confirm the correctness of the printed patterns. The storage and recording module records the aluminum plate transport video in real-time, assigning numbers based on the acquisition time and transport sequence of the aluminum plates, establishing a fixed relationship between the video number and the aluminum plate number. The error correction and alarm module receives error signals from the image monitoring and processing module regarding the printed patterns on the aluminum plates, identifies the aluminum plate transport video and its number containing the error information, and confirms the aluminum plate with the incorrect printed pattern based on the fixed relationship between the video number and the aluminum plate number. The terminal control platform displays the aluminum plate transport video on a screen for staff to view.

2. The aluminum plate printing monitoring system according to claim 1, characterized in that, The image monitoring and processing module includes an image acquisition unit and an image processing unit. The image acquisition unit includes a camera positioned above the conveyor belt, which captures real-time video of aluminum plates being transported on the conveyor belt. The image processing unit tracks the movement trajectory of the aluminum plates in the video of the aluminum plates being transported using optical flow, extracts dynamic trajectory images of the aluminum plates, identifies and analyzes the printed patterns on the surface of the aluminum plates in multiple dynamic trajectory images, and confirms whether the printed patterns on the surface of the aluminum plates are correct.

3. The aluminum plate printing monitoring system according to claim 1, characterized in that, The storage and recording module includes a data storage unit, an image counting and editing unit, and an aluminum plate counting and editing unit. The data storage unit records system operation data in real time and logs the operation data for staff to view. The image counting and editing unit numbers the aluminum plates according to the acquisition time of the aluminum plate conveying video to obtain the aluminum plate conveying video number. The aluminum plate counting and editing unit numbers the aluminum plates according to the conveying order to obtain the aluminum plate number.

4. The aluminum plate printing monitoring system according to claim 3, characterized in that, The data storage unit is a database, which pre-stores various printed pattern information. The image monitoring and processing module identifies and analyzes the printed patterns on the aluminum plate surface based on the printed pattern information selected from the database.

5. The aluminum plate printing monitoring system according to claim 1, characterized in that, The error correction alarm module includes: a single error alarm unit, a continuous error alarm unit, and an audible and visual warning unit. The single error alarm unit receives an error signal from the image monitoring and processing module regarding the printed pattern on the aluminum plate surface. It confirms the aluminum plate transport video and its video number containing the error information, and identifies the aluminum plate with the erroneous printed pattern based on the fixed pointing relationship between the video number and the aluminum plate number. The continuous error alarm unit determines whether the printed pattern error occurs consecutively based on the aluminum plate number. If three consecutive printed pattern errors occur, the continuous error alarm unit activates the audible and visual warning unit to alert staff to check for malfunctions in the printing equipment.

6. The aluminum plate printing monitoring system according to claim 5, characterized in that, The sound and light warning unit includes a sound and light alarm. When three consecutive incorrect printed patterns appear on the surface of the aluminum plate, the sound and light alarm will sound a buzzer and light alarm to the staff.

7. The aluminum plate printing monitoring system according to claim 1, characterized in that, The terminal control platform is remotely connected to the printer, which prints the aluminum plate number. The staff then pastes the aluminum plate number onto the aluminum plate tooling plate to complete the aluminum plate numbering.

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