Circulating general smoke box detection system

Abstract

The embodiment of the invention discloses a circulating general smoke box detection system. The system comprises a lighting coaming, camera equipment, smoke box removing equipment and a main control unit, the camera shooting equipment is used for collecting a box body display surface image of the smoke box to be detected under the condition that the illumination coaming provides a background illumination surface; and the main control unit is used for detecting the appearance of the box body display surface image, determining the appearance compliance attribute of the cigarette box, determining the circulation container adaptation attribute of the to-be-detected cigarette box according to the identified cigarette product label information and box body label information in the box body display surface image, and determining the circulation container adaptation attribute of the to-be-detected cigarette box according to the appearance compliance attribute of the cigarette box and the circulation container adaptation attribute. Determining whether a smoke box removal signal is generated or not; and the cigarette box removing equipment is used for removing the to-be-detected cigarette box from the cigarette box conveying belt if the cigarette box removing information is received, so that the identification accuracy of the surface of the box body is improved, triple functions of appearance defect detection, label content identification and soft and hard package adaptation verification are realized, the cigarette box detection efficiency is improved, and the error rate of a cigarette product production line is reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of cigarette processing, and in particular to a circulating universal cigarette box detection system. Background Art

[0002] To implement the State Tobacco Monopoly Administration's green development mandate of "improving quality and reducing consumption," the tobacco industry is comprehensively promoting the recycling of packaging materials. Specifically, finished cigarette packaging is being upgraded from traditional disposable branded boxes to reusable universal cartons. These new reusable universal cartons (i.e., reusable tobacco transport boxes) feature a standardized design. Instead of printed fixed brand logos, they utilize a removable labeling system to distinguish between different brands and sizes. While this change significantly reduces packaging costs, it also presents new quality control challenges.

[0003] Currently, the industry generally uses traditional industrial camera-based visual inspection systems to detect obvious packaging defects. This is supplemented by manual spot checks, where quality inspectors visually check that the cigarette box labels match the products inside.

[0004] However, existing inspection technology has significant shortcomings when it comes to inspecting reusable, universal cigarette boxes. First, the system's recognition rate for temporarily affixed brand labels is low, especially when the labels are wrinkled, tilted, or reflective. Traditional technology has a high error rate in recognizing brand text. Second, its limited inspection capabilities make it impossible to simultaneously address multiple quality control requirements, including surface defect detection, label content recognition, and packaging type matching. These shortcomings have led to increased errors on cigarette production lines, seriously impacting the promotion and use of reusable cigarette boxes. Summary of the Invention

[0005] The present invention provides a circulating universal cigarette box inspection system, which collects images of the box display surface under the condition that a high-uniformity surface lighting enclosure provides a background light source, thereby improving the clarity of the collected image, thereby improving the recognition accuracy of wrinkles and reflective labels on the box surface, and realizing the triple functions of appearance defect detection, label content recognition and soft and hard package adaptation verification, thereby improving the efficiency of cigarette box inspection and reducing the error rate of the cigarette product production line as a whole.

[0006] An embodiment of the present invention provides a circulating universal cigarette box detection system, comprising: an illuminated enclosure that semi-encloses a cigarette box conveyor belt, a camera device configured on the illuminated enclosure, a cigarette box removal device, and a main control unit, wherein the main control unit establishes communication with the camera device and the cigarette box removal device respectively;

[0007] The camera device is configured to capture an image of the display surface of the cigarette box to be tested when the cigarette box conveyor belt is detected to be passing by the cigarette box to be tested, and feed the image of the display surface to the main control unit, when the lighting enclosure provides a background lighting surface;

[0008] The main control unit is configured to perform appearance inspection on the box display surface image to determine appearance compliance attributes of the cigarette box, and determine the circulation container adaptation attributes of the cigarette box to be tested based on the tobacco product label information and box label information identified in the box display surface image, and determine whether to generate a cigarette box removal signal based on the cigarette box appearance compliance attributes and the circulation container adaptation attributes;

[0009] The cigarette box removal device is configured to remove the cigarette box to be tested from the cigarette box conveyor belt when it receives the cigarette box removal information sent by the main control unit and detects that the cigarette box to be tested has passed by the cigarette box conveyor belt. A cyclic universal cigarette box detection system.

[0010] Optionally, the lighting enclosure that semi-encloses the cigarette box conveyor belt includes: a top lighting enclosure, a first side lighting enclosure, and a second side lighting enclosure, and the number of the camera device includes multiple;

[0011] The multiple camera devices include: a first camera device arranged at the entrance end of the lighting enclosure, a second camera device arranged at the exit end of the lighting enclosure, a third camera device arranged at the top lighting enclosure near the entrance end, a fourth camera device arranged at the top lighting enclosure near the exit end, a fifth camera device arranged on the first side lighting enclosure, and a sixth camera device arranged on the second side lighting enclosure.

[0012] Optionally, the box display surface image includes: a box cover surface image, a box bottom surface image, a main display surface image, a first side surface image, and a second side surface image;

[0013] The first camera device is used to capture the image of the bottom surface of the box, the second camera device is used to capture the image of the box cover surface, the third camera device and the fourth camera device are used to capture the image of the main display surface, the fifth camera device is used to capture the first side image, and the sixth camera device is used to capture the second side image.

[0014] Optionally, the main control unit is also used to: perform appearance damage detection on the box display surface image to determine the appearance damage attribute of the cigarette box; perform sticker detection on the box display surface image to determine the compliance attribute of the sticker; perform label information detection on the box display surface image to determine the label integrity attribute; determine the appearance compliance attribute of the cigarette box based on the appearance damage attribute of the cigarette box, the compliance attribute of the sticker and the label integrity attribute.

[0015] Optionally, the main control unit is further used to: perform label information detection on the box display surface image to determine the tobacco product category label information, box label information and legal traceability label information; and determine the label integrity attribute based on the tobacco product category label information, the box label information and the legal traceability label information.

[0016] Optionally, the sticker compliance attribute includes at least one of a sticker fit attribute, a sticker neatness attribute, and a sticker integrity attribute.

[0017] Optionally, the main control unit is also used to: identify the tobacco product label information and the box label information in the box display surface image; extract the tobacco product soft and hard pack label information from the tobacco product label information, and extract the box soft and hard pack quasi-capacity label information from the box label information; and determine the circulation container adaptation properties of the cigarette box to be tested based on the adaptability results of the tobacco product soft and hard pack label information and the box soft and hard pack quasi-capacity label information.

[0018] Optionally, the main control unit is further configured to generate a cigarette box removal signal if the cigarette box appearance compliance attribute is an appearance non-compliant attribute and / or the circulation container adaptation attribute is a container non-adaptive attribute.

[0019] Optionally, the circulating universal cigarette box detection system further includes: a display screen; the main control unit is further used to generate cigarette box rejection reason information based on the cigarette box appearance compliance attributes and the circulating container adaptation attributes if a cigarette box removal signal is generated; the display screen is used to display the cigarette box rejection reason information to the user.

[0020] Optionally, the entrance end of the lighting enclosure further includes: a photoelectric sensor; the photoelectric sensor is configured to send an activation trigger signal to the camera device when sensing the passage of the cigarette box to be tested, so that the camera device captures the image of the box display surface of the cigarette box to be tested when receiving the activation trigger signal.

[0021] The technical solution of an embodiment of the present invention provides a circulating universal cigarette case detection system, which includes: an illuminated enclosure that semi-encloses a cigarette case conveyor belt, a camera device configured on the illuminated enclosure, a cigarette case removal device, and a main control unit, wherein the main control unit establishes communication with the camera device and the cigarette case removal device respectively; the camera device is configured to capture an image of the case display surface of the cigarette case to be tested when the cigarette case conveyor belt is detected to pass through the case, while the illuminated enclosure provides a background lighting surface, and feed the image of the case display surface back to the main control unit; the main control unit is configured to perform appearance inspection on the case display surface image to determine the appearance compliance attributes of the cigarette case, and determine the circulation container adaptation attributes of the cigarette case to be tested based on the tobacco product label information and case label information identified in the case display surface image, and determine whether to generate a cigarette case removal signal based on the cigarette case appearance compliance attributes and the circulation container adaptation attributes; the cigarette case removal device is configured to, upon receiving the cigarette case removal information sent by the main control unit, remove the cigarette case to be tested from the cigarette case conveyor belt when the cigarette case conveyor belt is detected to pass through the case. The circulating universal cigarette box inspection system proposed in the technical solution of this embodiment collects images of the box display surface with the background light source provided by the high-uniformity surface lighting enclosure, thereby improving the clarity of the collected image and the recognition accuracy of wrinkles and reflective labels on the box surface, thereby accurately realizing the triple functions of appearance defect detection, label content recognition and soft and hard package adaptation verification, improving the efficiency of cigarette box inspection and reducing the error rate of the cigarette product production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings introduced here only illustrate some of the embodiments to be described by the present invention, and are not exhaustive. A person skilled in the art can derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 A schematic structural diagram of a circulating universal cigarette box detection system provided by an embodiment of the present invention;

[0024] Figure 2 See the structural diagram of the lighting enclosure involved in the embodiment of the present invention and the schematic diagram of the installation positions of multiple devices;

[0025] Figure 3 Schematic diagram of a display surface of a box according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Example 1

[0030] Figure 1 This is a schematic structural diagram of a circulating universal cigarette box detection system provided by an embodiment of the present invention. This embodiment is applicable to the situation where the circulating universal cigarette box detection system is used to detect universal cigarette boxes passing through a conveyor belt.

[0031] like Figure 1 As shown, the circulating universal cigarette box detection system 10 includes: an illuminated panel 101 that semi-surrounds the cigarette box conveyor belt 00, a camera device 102 configured on the illuminated panel 101, a cigarette box removal device 104 and a main control unit 103, and the main control unit 103 establishes communication with the camera device 102 and the cigarette box removal device 104 respectively.

[0032] The lighting panel 101 is a plate-like structure that semi-encloses the cigarette box conveyor belt 00. It houses a uniform surface light source, such as an LED light panel or a diffuse reflector. Its primary function is to provide a stable background lighting environment for the camera 102. The lighting panel 101 is a semi-enclosed structure, which can be understood as surrounding a portion of the conveyor belt, such as a U- or L-shaped layout, to ensure that the display surface of the cigarette boxes is completely covered as they pass by. The lighting panel 101 acts as a background light source, creating a high-contrast background through uniform illumination, reducing ambient light interference and highlighting key features such as the cigarette box outline and labeling. The camera 102 is a visual sensor mounted on the lighting panel 101, such as an industrial camera or smart camera, that captures images of the cigarette box surface. Using optical imaging technology, it converts the physical characteristics of the cigarette box under test into a digital image for analysis and processing by the main control unit 103. The cigarette box removal device 104 is an automated mechanical device that, based on instructions from the main control unit 103, quickly and accurately removes non-compliant cigarette boxes from the conveyor belt. In particular, the cigarette box removal device is configured on the production line behind the camera device. The main control unit 103 exchanges data and transmits control instructions with the camera device 102 and the cigarette box removal device 104 through a specific communication method to ensure that all components of the system work in coordination.

[0033] In this embodiment, the camera device 102 is used to capture the box display surface image of the cigarette box to be tested when it is detected that the cigarette box conveyor belt 00 is passing by the cigarette box to be tested, and feed the box display surface image back to the main control unit 103 under the condition that the lighting enclosure 101 provides a background lighting surface; the main control unit 103 is used to perform appearance detection on the box display surface image, determine the appearance compliance attributes of the cigarette box, and determine the circulation container adaptation attributes of the cigarette box to be tested based on the tobacco product label information and box label information identified in the box display surface image, and determine whether to generate a cigarette box removal signal based on the cigarette box appearance compliance attributes and the circulation container adaptation attributes; the cigarette box removal device 104 is used to remove the cigarette box to be tested from the cigarette box conveyor belt 00 when it is detected that the cigarette box conveyor belt 00 is passing by the cigarette box to be tested, if the cigarette box removal information sent by the main control unit 103 is received.

[0034] Among them, the background lighting surface refers to a uniform and soft lighting plane, which is used to provide a standardized backlight environment for cigarette box inspection. The cigarette box to be tested refers to a circulating universal cigarette box on the conveyor belt that is currently being inspected by the system, and the cigarette box to be tested carries tobacco products. The box display surface image refers to the image of the outer surface of the cigarette box to be tested, which is illuminated by the light source of the lighting enclosure 101 and photographed by the camera device 102 during the transportation process. The appearance compliance attribute of the cigarette box is a quantitative evaluation result of whether the external physical state of the cigarette box meets the preset standards based on the box display surface image, which is one of the core indicators of quality inspection. The appearance compliance attribute of the cigarette box may include appearance compliance attributes or appearance non-compliance attributes.

[0035] Tobacco product label information refers to the specialized label data affixed or printed on the outside of a cigarette box that identifies the properties of the tobacco product. Box label information specifically refers to the identification data related to the properties of the packaging container itself, printed or affixed directly to the outer packaging of the cigarette box.

[0036] The recycling container adaptation attribute refers to an indicator used by the system to determine whether the cigarette box is compatible with the packaging attributes of the current cigarette product by analyzing the cigarette product label information and the cigarette box label information. The recycling container adaptation attribute can include a container adaptation attribute or a container non-compatibility attribute.

[0037] In the tobacco industry, recyclable universal cigarette boxes distinguish between soft-pack and hard-pack designs. Hard-pack cigarette boxes are used to carry tobacco products packaged in hard boxes. The lining material of hard-pack cigarette boxes is hard plastic or reinforced cardboard. The structural strength is higher and the pressure resistance is higher to prevent collapse. In terms of space utilization, they should be arranged closely to reduce shaking. Soft-pack cigarette boxes are used to carry tobacco products packaged in soft boxes. The lining material of soft-pack cigarette boxes is flexible foam or shock-proof lining. The structural strength emphasizes shock resistance and anti-friction. In terms of space utilization, buffer space should be reserved to avoid squeezing. If a hard-pack cigarette box carries tobacco products packaged in soft boxes, that is, a "hard box for soft use", tobacco products are prone to packaging damage during transportation and storage. Therefore, the adaptability of a cigarette box to the current packaging properties of the tobacco products can be quantified through the adaptability properties of the recyclable container.

[0038] In this embodiment, the camera device 102 is used to capture the box display surface image of the cigarette box to be tested when it is detected that the cigarette box conveyor belt 00 is passing by the cigarette box to be tested, and feed the box display surface image back to the main control unit 103 under the condition that the lighting enclosure 101 provides a background lighting surface; the main control unit 103 is used to perform appearance detection on the box display surface image, determine the appearance compliance attributes of the cigarette box, and determine the circulation container adaptation attributes of the cigarette box to be tested based on the tobacco product label information and box label information identified in the box display surface image, and determine whether to generate a cigarette box removal signal based on the cigarette box appearance compliance attributes and the circulation container adaptation attributes; the cigarette box removal device 104 is used to remove the cigarette box to be tested from the cigarette box conveyor belt 00 when it is detected that the cigarette box conveyor belt 00 is passing by the cigarette box to be tested, if the cigarette box removal information sent by the main control unit 103 is received.

[0039] Optionally, the main control unit 103 is further configured to generate a cigarette box removal signal if the cigarette box appearance compliance attribute is an appearance non-compliant attribute and / or the circulation container adaptation attribute is a container non-compatible attribute.

[0040] In the specific application process, the semi-enclosed lighting enclosure 101 provides a uniform surface light source environment. The camera device 102 configured on the lighting enclosure 101 quickly collects high-definition images of the various surfaces of the box when the smoke box to be tested passes by, which are the box display surface images, and feeds these images back to the main control unit 103 in real time. The main control unit 103 can perform real-time analysis on these box display surface images: on the one hand, it determines the compliance attributes of the appearance of the smoke box through edge detection and defect recognition, for example, whether there is a dent greater than or equal to 2mm, or a defect greater than or equal to 5cm. 2 If there are any stains on the cigarette box, etc., then the appearance compliance attribute of the cigarette box is determined to be an appearance non-compliance attribute; otherwise, the appearance compliance attribute of the cigarette box is determined to be an appearance compliance attribute; on the other hand, the tobacco product label information and the box label information can be extracted through OCR and identification code recognition technology, so as to determine the circulation container adaptation attribute based on the tobacco product soft and hard package label information in the tobacco product label information and the box soft and hard package capacity label information in the box label information. If the cigarette box appearance compliance attribute and the circulation container adaptation attribute are compatible, it indicates that the cigarette box to be tested has no appearance problems and there is no need to generate a cigarette box removal signal. If the cigarette box appearance compliance attribute and the circulation container adaptation attribute are not compatible, it indicates that there is a problem with the cigarette box to be tested and a cigarette box removal signal needs to be generated. The cigarette box information is sent to the cigarette box removal device 104. When the cigarette box removal device 104 detects that the cigarette box conveyor belt 00 is carrying the cigarette box to be tested, the switch of the cigarette box removal device 104 is triggered, and a pneumatic push rod or a robotic arm, for example, will remove the cigarette box to be tested from the cigarette box conveyor belt 00 and accurately sort it to the repair channel, effectively ensuring the quality controllability and logistics efficiency of the circulating cigarette boxes.

[0041] The technical solution of an embodiment of the present invention provides a circulating universal cigarette case detection system, which includes: an illuminated enclosure that semi-encloses a cigarette case conveyor belt, a camera device configured on the illuminated enclosure, a cigarette case removal device, and a main control unit, wherein the main control unit establishes communication with the camera device and the cigarette case removal device respectively; the camera device is configured to capture an image of the case display surface of the cigarette case to be tested when the cigarette case conveyor belt is detected to pass through the case, while the illuminated enclosure provides a background lighting surface, and feed the image of the case display surface back to the main control unit; the main control unit is configured to perform appearance inspection on the case display surface image to determine the appearance compliance attributes of the cigarette case, and determine the circulation container adaptation attributes of the cigarette case to be tested based on the tobacco product label information and case label information identified in the case display surface image, and determine whether to generate a cigarette case removal signal based on the cigarette case appearance compliance attributes and the circulation container adaptation attributes; the cigarette case removal device is configured to, upon receiving the cigarette case removal information sent by the main control unit, remove the cigarette case to be tested from the cigarette case conveyor belt when the cigarette case conveyor belt is detected to pass through the case. The recyclable universal cigarette case inspection system proposed in this embodiment uses a highly uniform illuminated enclosure as a background light source to capture images of the case's display surface. This improves image clarity and the accuracy of identifying wrinkles and reflective labels on the case's surface. This enables accurate detection of cosmetic defects, identification of label content, and verification of soft and hard package compatibility, enhancing cigarette case inspection efficiency and reducing the error rate on the tobacco product production line.

[0042] Optionally, the circulating universal cigarette box detection system 10 further includes a photoelectric sensor, which is used to send an activation trigger signal to the camera device 102 when sensing the cigarette box to be tested passing by, so that the camera device 102 captures the box display surface image of the cigarette box to be tested when receiving the activation trigger signal.

[0043] In this embodiment, the revolving universal cigarette case inspection system 10 achieves precise triggering control through photoelectric sensors. When a cigarette case to be inspected moves onto the conveyor belt into the inspection area, the photoelectric sensor immediately senses the case's position and sends a high-precision activation trigger signal to the camera 102, triggering it to synchronously capture an image of the case's display surface at the optimal inspection location. This ensures spatiotemporal consistency between image acquisition and cigarette case movement, preventing missed detections or ghosting. This triggering mechanism enables the system to quickly capture full-dimensional images of a single case.

[0044] Optionally, the circulating universal cigarette box detection system 10 further includes a first photoelectric sensor, which is disposed on the cigarette box removal device 104. The first photoelectric sensor is configured to activate a trigger signal to the cigarette box removal device 104 when sensing the passage of the cigarette box to be tested, so that the cigarette box removal device 104 removes the cigarette box to be tested from the cigarette box conveyor belt 00 if it receives the cigarette box removal information.

[0045] In this embodiment, the recyclable universal cigarette case inspection system 10 uses a first photoelectric sensor to precisely trigger and control cigarette case removal. When the main control unit 103 determines a cigarette case needs to be removed and generates a cigarette case removal message, the first photoelectric sensor, mounted on the cigarette case removal device 104, monitors the process in real time. Once it senses a cigarette case has reached a rejection station, it immediately sends a millisecond-level trigger signal to the removal device, driving a pneumatic push rod or robotic arm to precisely sort unqualified cigarette cases to a rework channel, while ensuring that subsequent qualified cigarette cases are not disturbed.

[0046] Optionally, the lighting enclosure 101 that semi-encloses the cigarette box conveyor belt 00 includes: a top lighting enclosure 101, a first side lighting enclosure 101 and a second side lighting enclosure 101, and the number of camera devices 102 includes multiple; the multiple camera devices 102 include: a first camera device 102 configured at the entrance end of the lighting enclosure 101, a second camera device 102 configured at the exit end of the lighting enclosure 101, a third camera device 102 configured at the top lighting enclosure 101 near the entrance end, a fourth camera device 102 configured at the top lighting enclosure 101 near the exit end, a fifth camera device 102 configured on the first side lighting enclosure 101 and a sixth camera device 102 configured on the second side lighting enclosure 101.

[0047] In this embodiment, the structural diagram of the lighting enclosure 101 and the schematic diagram of the installation positions of multiple devices are shown in FIG. Figure 2 .like Figure 2 As shown, the top lighting panel 101 is a horizontal lighting panel located directly above the conveyor belt, with a built-in evenly distributed surface light source. The first side lighting panel 101 is a vertical lighting panel located on one side of the conveyor belt, connected to the top panel at a 90° angle. The second side lighting panel 101 is a vertical lighting panel located on the other side of the conveyor belt, symmetrical to the first side panel. Figure 2Taking the movement direction of the cigarette box conveyor belt 00 from the lower right to the upper left as an example, the right side of the lighting enclosure 101 is the entrance end, and the left side of the lighting enclosure 101 is the exit end. The first camera device 102 is installed at the entrance end of the lighting enclosure 101. The second camera device 102 is installed at the exit end of the lighting enclosure 101. The third camera device 102 is installed on the top lighting enclosure 101 near the entrance end, for example, near the 1 / 4 of the entrance side; the fourth camera device 102 is installed on the top lighting enclosure 101 near the exit end, for example, near the 1 / 4 of the exit side; because the top enclosure is facing the main display surface of the cigarette box to be tested, the main display surface contains more key information and has a relatively large area. A single camera has edge distortion due to physical limitations. Therefore, dual cameras are configured to ensure that there is no blind spot on the entire top surface. The fifth camera device 102 is installed in the middle of the first side lighting enclosure 101; the sixth camera device 102 is installed in the middle of the second side lighting enclosure 101 (symmetrical to the fifth camera device 102).

[0048] Optionally, based on the above embodiment, the box display surface image includes: a box lid surface image, a box bottom surface image, a main display surface image, a first side image and a second side image; the first camera device 102 is used to capture the box bottom surface image, the second camera device 102 is used to capture the box lid surface image, the third camera device 102 and the fourth camera device 102 are used to capture the main display surface image, the fifth camera device 102 is used to capture the first side image, and the sixth camera device 102 is used to capture the second side image.

[0049] In this embodiment, the box display surface diagram is shown in Figure 3 The recyclable universal cigarette box inspection system 10 adopts a multi-angle collaborative imaging strategy. The third and fourth cameras 102 of the top lighting panel 101 respectively capture images of the main display surface of the cigarette box from the front and rear positions, covering the entire top surface area; the fifth camera 102 of the first side lighting panel 101 and the sixth camera 102 of the second side lighting panel 101 simultaneously capture two side images, namely the first side image and the second side image; the first camera 102 at the entrance obtains the image of the bottom surface of the box from an upward angle to detect hidden damage; the second camera 102 at the exit takes an image of the box cover from a downward angle to verify the integrity of the packaging. The six cameras 102 transmit the image data of the five surfaces to the main control unit 103 in real time through spatiotemporal synchronization control, constructing a complete digital image of the cigarette box, thereby realizing all-round intelligent judgment of appearance compliance and recyclability.

[0050] Example 2

[0051] Based on the previous embodiment, this embodiment further refines the structural components of the circulating universal smoke box detection system 10 and the functions of the main control unit 103. The specific implementation methods can be found in the technical solution of this embodiment. Technical terms that are the same as or corresponding to those in the previous embodiment are not repeated here.

[0052] This embodiment provides a cyclic universal cigarette box detection system 10, which includes: an illuminated panel 101 that semi-encloses a cigarette box conveyor belt 00, a camera 102 disposed on the illuminated panel 101, a cigarette box removal device 104, and a main control unit 103. The main control unit 103 establishes communication with the camera 102 and the cigarette box removal device 104 respectively; the camera 102 is used to capture an image of the display surface of the cigarette box to be tested when the cigarette box conveyor belt 00 is detected to be passing by, under the condition that the illuminated panel 101 provides a background illumination surface, and the image of the display surface is fed back to the detection device. To the main control unit 103; the main control unit 103 is used to perform appearance detection on the box display surface image, determine the appearance compliance attributes of the cigarette box, and determine the circulation container adaptation attributes of the cigarette box to be tested based on the tobacco product label information and the box label information identified in the box display surface image, and determine whether to generate a cigarette box removal signal based on the cigarette box appearance compliance attributes and the circulation container adaptation attributes; the cigarette box removal device 104 is used to remove the cigarette box to be tested from the cigarette box conveyor belt 00 when it is detected that the cigarette box conveyor belt 00 has passed by the cigarette box to be tested if the cigarette box removal information sent by the main control unit 103 is received.

[0053] Optionally, when the main control unit 103 determines the compliance attributes of the box appearance, the main control unit 103 is also used to: perform appearance damage detection on the box display surface image to determine the appearance damage attributes of the cigarette box; perform sticker detection on the box display surface image to determine the compliance attributes of the stickers; perform label information detection on the box display surface image to determine the label integrity attributes; determine the appearance compliance attributes of the cigarette box based on the appearance damage attributes of the cigarette box, the compliance attributes of the stickers and the label integrity attributes.

[0054] Among them, the appearance damage attribute of the cigarette box refers to an indicator that quantitatively assesses the physical structural integrity of the cigarette box, reflecting whether the box has mechanical damage that affects its recycling. The sticker compliance attribute refers to an indicator that determines whether non-standard stickers on the surface of the cigarette box meet recycling specifications, such as sealing tape. The sticker compliance attribute includes at least one of the following attributes: sticker fit attribute, sticker neatness attribute, and sticker integrity attribute. The sticker fit attribute is an indicator that quantifies the tightness of the sticker's adhesion to the box surface, reflecting the physical adhesion quality of the sticker. Inspection contents may include: edge lift, detecting whether the four sides of the sticker are detached from the box, for example, a lift height of ≥0.3mm is considered unqualified; bubble area, calculating the proportion of bubbles under the sticker, for example, allowing ≤5% of the total area; glue penetration, analyzing the width of glue stains overflowing from the edge, for example, the standard value is ≤1mm. The sticker neatness attribute is an indicator that evaluates the standardization and geometric alignment of the sticker's position on the box. The inspection contents may include: position offset, comparing the deviation of the actual position with the standard template, for example, ±2mm is allowed; angle tilt, measuring the deflection angle of the sticker relative to the edge of the box, for example, the threshold is ≤3°; repeated pasting, identifying the phenomenon of multiple layers of overlapping pasting, for example, a maximum of 2 layers is allowed. The sticker integrity attribute is an indicator for evaluating the physical integrity of the sticker itself. The inspection contents may include: defect area, detecting the missing part of the sticker due to tearing and wear, for example, ≤10% of the total area is allowed; information integrity, the defect rate of key areas must be ≤3%; contamination level, the stain coverage area is ≤15%, etc. The label integrity attribute refers to the indicator for evaluating the readability, standardization and integrity of the cigarette box identity label.

[0055] In this embodiment, the main control unit 103 can use a deep learning vision algorithm to perform a triple inspection of the box display surface image. First, 3D point cloud reconstruction technology is used to identify structural damage and determine the appearance damage attribute. Second, multispectral imaging is used to analyze surface attachments and comprehensively evaluate the compliance attributes of the stickers based on fit, neatness, and completeness. OCR and QR code decoding technology are also used to verify the readability and logical validity of the label information and determine the label integrity attribute. Finally, a weighted decision model is used to calculate the appearance compliance score based on the appearance damage attribute, sticker compliance attribute, and label integrity attribute to obtain the appearance compliance attribute of the cigarette box.

[0056] Optionally, the main control unit 103 is further used to: perform label information detection on the box display surface image to determine the tobacco product category label information, box label information and legal traceability label information; and determine the label integrity attribute based on the tobacco product category label information, box label information and legal traceability label information.

[0057] Among them, the statutory traceability label information specifically refers to the identification data that is mandatory to be marked in accordance with national tobacco monopoly regulations and used for product supervision throughout its life cycle.

[0058] In this embodiment, the main control unit 103 can perform a triple label analysis on the display surface image of the case: first, extracting tobacco product category label information, such as brand logo, specification model, and HS code; second, synchronously decoding case label information, such as RFID data such as cycle count and sterilization date; and third, verifying the legal traceability label information, such as checking whether the 32-digit tobacco traceability code, monopoly license number, and holographic anti-counterfeiting feature are detected, and verifying them in real time against the State Tobacco Monopoly Administration database. Thus, a weighted scoring method can be used to calculate label integrity attributes based on the integrity, readability, and logic of these three types of labels.

[0059] Optionally, when determining the adaptation properties of the circulation container, the main control unit 103 is also used to: identify the tobacco product label information and the box label information in the box display surface image; extract the tobacco product soft and hard package label information from the tobacco product label information, and extract the box soft and hard package quasi-capacity label information from the box label information; and determine the adaptation properties of the circulation container of the cigarette box to be tested based on the adaptability results of the tobacco product soft and hard package label information and the box soft and hard package quasi-capacity label information.

[0060] The label information for soft and hard tobacco product packaging refers to the product type identification printed or affixed to the tobacco product label, clearly indicating whether it is a hard or soft box packaging. The container label information for soft and hard packaging refers to the container compatibility specifications engraved on the box label, stating the applicable packaging type for the box design.

[0061] In this embodiment, the main control unit 103 uses high-precision image recognition technology to first extract the packaging type identification (hard box "H" or soft box "S") in the tobacco product label and the quasi-capacity type code (hard box "H" or soft box "S") in the box label from the box surface image, and then performs intelligent matching verification: when the tobacco product hard box identification matches the quasi-capacity type of the box and the number of cycles is within the limit, for example, hard box ≤15 times, soft box ≤8 times, it is judged to be compatible, otherwise it is uncompatible, and finally the recycling container adaptation attribute result (qualified / unqualified) is generated, avoiding extrusion deformation caused by the hard box being mistakenly installed in the soft box or space waste caused by the soft box being mismatched with the hard box, improving the adaptation accuracy, and significantly improving the use efficiency and safety of the recycling box.

[0062] Optionally, the circulating universal cigarette box detection system 10 further includes: a display screen; the main control unit 103 is further used to generate cigarette box rejection reason information based on the cigarette box appearance compliance attributes and the circulating container adaptation attributes if a cigarette box removal signal is generated; the display screen is used to display the cigarette box rejection reason information to the user.

[0063] In this embodiment, the recyclable universal smoke box inspection system 10 provides real-time quality feedback through a visual interactive interface. Specifically, when the main control unit 103 generates a smoke box removal signal, it generates structured rejection reason information based on the appearance inspection results and recyclable adaptation data. The display screen intuitively displays the specific fault classification to the operator, and highlights key issues with color grading (red for emergency and yellow for warning). Touchscreen interaction is supported for defect image comparison, ensuring a transparent and traceable quality inspection process.

[0064] The technical solution of the embodiment of the present invention provides a circulating universal cigarette box inspection system. When the main control unit determines the compliance attributes of the box appearance, the main control unit is also used to: perform appearance damage detection on the box display surface image to determine the appearance damage attributes of the cigarette box; perform sticker detection on the box display surface image to determine the compliance attributes of the stickers; perform label information detection on the box display surface image to determine the label integrity attributes; determine the appearance compliance attributes of the cigarette box based on the appearance damage attributes of the cigarette box, the compliance attributes of the stickers and the label integrity attributes. The comprehensiveness and reliability of the cigarette box appearance quality inspection are significantly improved through the intelligent fusion of the three detection dimensions. When determining the adaptability properties of the circulation container, the main control unit is also used to: identify the tobacco product label information and the box label information in the box display surface image; extract the tobacco product soft and hard package label information from the tobacco product label information, and extract the box soft and hard package quasi-capacity label information from the box label information; based on the adaptability results of the tobacco product soft and hard package label information and the box soft and hard package quasi-capacity label information, determine the adaptability properties of the circulation container of the cigarette box to be tested, and through the intelligent soft and hard package adaptation detection mechanism, effectively solve the industry problem of mixed loading and misuse of circulation cigarette boxes, and improve the adaptability of circulation cigarette boxes.

[0065] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A circulating universal smoke box detection system, characterized in that: include: an illuminated enclosure semi-enclosing a cigarette box conveyor belt, a camera device disposed on the illuminated enclosure, a cigarette box removal device, and a main control unit, wherein the main control unit establishes communication with the camera device and the cigarette box removal device respectively; The camera device is configured to capture an image of the display surface of the cigarette box to be tested when the cigarette box conveyor belt is detected to be passing by the cigarette box to be tested, and feed the image of the display surface to the main control unit, when the lighting enclosure provides a background lighting surface; The main control unit is configured to perform appearance inspection on the box display surface image to determine appearance compliance attributes of the cigarette box, and determine the circulation container adaptation attributes of the cigarette box to be tested based on the tobacco product label information and box label information identified in the box display surface image, and determine whether to generate a cigarette box removal signal based on the cigarette box appearance compliance attributes and the circulation container adaptation attributes; The cigarette box removing device is configured to remove the cigarette box to be tested from the cigarette box conveyor belt when it receives the cigarette box removal information sent by the main control unit and detects that the cigarette box to be tested has passed by the cigarette box conveyor belt.

2. The circulating universal smoke box detection system according to claim 1, characterized in that: The lighting enclosure that semi-encloses the cigarette box conveyor belt includes: a top lighting enclosure, a first side lighting enclosure, and a second side lighting enclosure, and the number of the camera equipment includes multiple; The multiple camera devices include: a first camera device arranged at the entrance end of the lighting enclosure, a second camera device arranged at the exit end of the lighting enclosure, a third camera device arranged at the top lighting enclosure near the entrance end, a fourth camera device arranged at the top lighting enclosure near the exit end, a fifth camera device arranged on the first side lighting enclosure, and a sixth camera device arranged on the second side lighting enclosure.

3. The circulating universal smoke box detection system according to claim 2, characterized in that: The box display surface image includes: a box cover surface image, a box bottom surface image, a main display surface image, a first side surface image and a second side surface image; The first camera device is used to capture the image of the bottom surface of the box, the second camera device is used to capture the image of the box cover surface, the third camera device and the fourth camera device are used to capture the image of the main display surface, the fifth camera device is used to capture the first side image, and the sixth camera device is used to capture the second side image.

4. The circulating universal smoke box detection system according to claim 1, characterized in that: The main control unit is also used for: Performing appearance damage detection on the display surface image of the cigarette box to determine the appearance damage attribute of the cigarette box; Performing sticker detection on the display surface image of the cabinet to determine the compliance attributes of the sticker; Performing label information detection on the box display surface image to determine the label integrity attribute; The appearance compliance attribute of the cigarette box is determined based on the appearance damage attribute of the cigarette box, the compliance attribute of the sticker, and the integrity attribute of the label.

5. The circulating universal smoke box detection system according to claim 4, characterized in that: The main control unit is also used for: Performing label information detection on the box display surface image to determine tobacco product category label information, box label information, and legal traceability label information; A label integrity attribute is determined based on the tobacco product category label information, the box label information, and the legal traceability label information.

6. The circulating universal smoke box detection system according to claim 4, characterized in that: The sticker compliance attribute includes at least one of a sticker fit attribute, a sticker neatness attribute, and a sticker integrity attribute.

7. The circulating universal smoke box detection system according to claim 1, characterized in that: The main control unit is also used for: Identifying tobacco product label information and box label information in the box display surface image; Extracting the label information of the soft and hard packs of the tobacco products from the tobacco product label information, and extracting the qualified label information of the soft and hard packs of the box from the box label information; Based on the compatibility results of the tobacco product soft and hard pack label information and the box soft and hard pack quasi-capacity label information, the circulating container adaptation attribute of the cigarette box to be tested is determined.

8. The circulating universal smoke box detection system according to claim 1, characterized in that: The main control unit is also used for: If the cigarette box appearance compliance attribute is an appearance non-compliance attribute, and / or the circulation container adaptation attribute is a container non-adaptation attribute, a cigarette box removal signal is generated.

9. The circulating universal smoke box detection system according to claim 1, characterized in that: Also includes: Display screen; The main control unit is further configured to generate cigarette box removal reason information based on the cigarette box appearance compliance attribute and the circulation container adaptation attribute if a cigarette box removal signal is generated; The display screen is used to display the cigarette box rejection reason information to the user.

10. The circulating universal smoke box detection system according to claim 1, characterized in that: The entrance end of the lighting enclosure further includes: a photoelectric sensor; The photoelectric sensor is used to send an activation trigger signal to the camera device when sensing the cigarette box to be tested passing by, so that the camera device captures the box display surface image of the cigarette box to be tested when receiving the activation trigger signal.

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