Cigarette carton detection system

Abstract

The invention discloses a cigarette carton box detection system. The system comprises a detection unit, a display execution unit, a control unit and an acquisition and access unit, wherein the control unit is respectively connected with the detection unit, the display execution unit and the acquisition and access unit; the detection unit is used for collecting appearance information of target cigarette boxes on the conveying belt; the control unit is used for performing quality detection according to the appearance information of the target cigarette carton, determining a quality detection result of the target cigarette carton, and generating an execution instruction of the target cigarette carton according to the quality detection result; the display execution unit is used for displaying the appearance information and the quality detection result of the target cigarette carton, and rejecting the target cigarette carton according to an execution instruction; and the acquisition and access unit is used for storing the appearance information and the quality detection result of the target cigarette box. Through the technical scheme of the invention, effective detection of the cigarette carton box can be realized, and the detection efficiency and accuracy of the cigarette carton box are improved.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette production and processing, and in particular to a cigarette box detection system. Background Art

[0002] The production of cigarette cases is the last process in the production of the rolling and packaging workshop. The production of conventional cigarette cases is mainly done by stacking cigarette strips through a case packer, with 25 cigarettes in a stack. The case packer pushes two stacks of cigarette strips into a cigarette box, then seals and folds the box, seals it with tape, and affixes a No. 1 engineering code and brand label to a fixed position on the outside of the case. In this way, cigarette cases are produced one by one and sent to the warehouse through a conveyor belt. During the production and transportation process, cigarette cases may have quality problems such as missing strips, collisions, unrelated box conditions, wrong brand labels, damaged cigarette boxes, and unsealed sealing tapes.

[0003] At present, manual inspection is usually used to inspect the quality of the finished cigarette cases. However, this inspection method based on manual experience cannot unify the inspection standards, which reduces the accuracy of cigarette case inspection. In addition, for multiple inspection items, it is necessary to inspect them one by one, which is time-consuming and labor-intensive, reducing the efficiency of cigarette case inspection. Summary of the invention

[0004] The present invention provides a piece cigarette box detection system to realize effective detection of the piece cigarette box, thereby improving the detection efficiency and accuracy of the piece cigarette box.

[0005] According to one aspect of the present invention, a cigarette box detection system is provided, comprising: a detection unit, a display execution unit, a control unit, and a collection and access unit, wherein the control unit is connected to the detection unit, the display execution unit, and the collection and access unit respectively;

[0006] A detection unit, used to collect appearance information of the target cigarette box on the conveyor belt;

[0007] A control unit, used to perform quality inspection according to the appearance information of the target cigarette box, determine the quality inspection result of the target cigarette box, and generate an execution instruction of the target cigarette box according to the quality inspection result;

[0008] A display execution unit, used to display the appearance information and quality inspection results of the target cigarette box, and to reject the target cigarette box according to the execution instruction;

[0009] The collection and access unit is used to store the appearance information and quality inspection results of the target cigarette box.

[0010] According to another aspect of the present invention, a cigarette box detection method is provided, comprising:

[0011] The appearance information of the target cigarette box on the conveyor belt is collected by the detection unit;

[0012] The control unit performs quality inspection according to the appearance information of the target cigarette box, determines the quality inspection result of the target cigarette box, and generates an execution instruction of the target cigarette box according to the quality inspection result;

[0013] The appearance information and quality inspection results of the target cigarette box are displayed through the display execution unit, and the target cigarette box is rejected according to the execution instruction;

[0014] The appearance information and quality inspection results of the target cigarette box are stored through the acquisition and access unit.

[0015] The technical solution of the embodiment of the present invention is connected with the detection unit, the display execution unit and the collection and access unit respectively through the control unit; the detection unit is used to collect the appearance information of the target piece cigarette box on the conveyor belt; the control unit is used to perform quality inspection according to the appearance information of the target piece cigarette box, determine the quality inspection result of the target piece cigarette box, and generate the execution instruction of the target piece cigarette box according to the quality inspection result; the display execution unit is used to display the appearance information and quality inspection result of the target piece cigarette box, and reject the target piece cigarette box according to the execution instruction; the collection and access unit is used to store the appearance information and quality inspection result of the target piece cigarette box, so as to realize the effective inspection of the piece cigarette box and improve the inspection efficiency and accuracy of the piece cigarette box.

[0016] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a structural schematic diagram of a cigarette box detection system provided according to Embodiment 1 of the present invention;

[0019] Figure 2 is a structural schematic diagram of a preferred cigarette box detection system provided according to Embodiment 1 of the present invention;

[0020] Figure 3 4 is a flow chart of a cigarette box detection method provided according to Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", "target", etc. in the specification 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 data 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 that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] Embodiment 1

[0024] Figure 1 This is a schematic diagram of the structure of a cigarette box detection system provided in Embodiment 1 of the present invention. Figure 1 As shown, the system includes: a detection unit 110, a display execution unit 120, a control unit 130, and a collection and access unit 140, and the control unit 130 is connected to the detection unit 110, the display execution unit 120, and the collection and access unit 140 respectively;

[0025] The detection unit 110 is used to collect appearance information of the target cigarette box on the conveyor belt;

[0026] The control unit 130 is used to perform quality inspection according to the appearance information of the target cigarette box, determine the quality inspection result of the target cigarette box, and generate an execution instruction of the target cigarette box according to the quality inspection result;

[0027] A display execution unit 120, used to display the appearance information and quality inspection results of the target cigarette box, and to reject the target cigarette box according to the execution instruction;

[0028] The collection and access unit 140 is used to store the appearance information and quality inspection results of the target cigarette box.

[0029] In this embodiment, the detection unit 110 may refer to a device for collecting appearance information of the sealed cigarette boxes during the conveying process. The detection unit 110 may be arranged near the conveyor belt that transports the target cigarette boxes into the warehouse. The target cigarette box may refer to a packaging box of sealed cigarette boxes that needs to be quality inspected. The appearance information may refer to the cigarette box information related to the pre-set quality inspection items. For example, the pre-set quality inspection items may include but are not limited to damaged cigarette boxes and unsealed sealing tapes; the appearance information corresponding to the quality inspection item may be the image information corresponding to each surface of the target cigarette box.

[0030] The control unit 130 may refer to a device that determines the quality inspection result of the target cigarette box according to a preset quality inspection standard, and controls the display execution unit 120 according to the quality inspection result. The quality inspection result may refer to the inspection result of the quality inspection item to which the collected appearance information belongs. The quality inspection result can be used to characterize the quality of the target cigarette box. For a variety of appearance information, each quality inspection item to which each appearance information belongs has its own corresponding quality inspection result. The execution instruction may refer to an operation instruction for controlling the display execution unit 120. If at least one quality inspection result among the multiple quality inspection results is an unqualified result, the generated execution instruction is an instruction to reject the target cigarette box and not put it into storage.

[0031] The display execution unit 120 is a device that can be used to display specific information to the staff and perform rejection or storage operations on the target cigarette box. The acquisition and access unit 140 is a device that is used to obtain and store the appearance information and quality inspection results of the target cigarette box.

[0032] Specifically, after the sealing operation is completed, the conveyor belt transports the sealed target cigarette box to the warehouse, and the transportation of the target cigarette box will not stop. In the process of the conveyor belt transporting the target cigarette box to the warehouse, the detection unit 110 will collect the appearance information of the target cigarette box on the conveyor belt, and send the collected appearance information of the target cigarette box to the control unit 130. The control unit 130 receives the appearance information of the target cigarette box transmitted by the detection unit 110, and performs quality inspection according to the appearance information of the target cigarette box, determines the quality inspection result of the target cigarette box, and generates the execution instruction of the target cigarette box according to the quality inspection result, and sends the appearance information, quality inspection result and execution instruction of the target cigarette box to the display execution unit 120. The display execution unit 120 receives the appearance information, quality inspection result and execution instruction of the target cigarette box transmitted by the control unit 130 and sends them to the display execution unit 120, and displays the appearance information and quality inspection result of the target cigarette box to the staff, and removes the target cigarette box according to the execution instruction, or does not take action to keep the target cigarette box in the warehouse. The collection and access unit 140 can collect the appearance information of the target cigarette box from the detection unit 110 and the quality inspection result of the target cigarette box from the control unit 130 ; the collection and access unit 140 can also collect the appearance information and quality inspection result of the target cigarette box from the display execution unit 120 .

[0033] For example, the collection and access unit 140 can only store the appearance information and quality inspection results of the target cigarette boxes that are stored in the warehouse, so that users can conduct traceability query access to the outbound products. The collection and access unit 140 can also store the appearance information and quality inspection results of all target cigarette boxes that undergo quality inspection, so that the staff can conduct traceability query on the information of the cigarette production process, and analyze whether there are problems in each production link.

[0034] The technical solution of the embodiment of the present invention is connected to the detection unit 110, the display execution unit 120 and the collection and access unit 140 respectively through the control unit 130; the detection unit 110 is used to collect the appearance information of the target piece cigarette box on the conveyor belt; the control unit 130 is used to perform quality inspection according to the appearance information of the target piece cigarette box, determine the quality inspection result of the target piece cigarette box, and generate the execution instruction of the target piece cigarette box according to the quality inspection result; the display execution unit 120 is used to display the appearance information and quality inspection result of the target piece cigarette box, and reject the target piece cigarette box according to the execution instruction; the collection and access unit 140 is used to store the appearance information and quality inspection result of the target piece cigarette box, so as to realize the effective inspection of the piece cigarette box and improve the inspection efficiency and accuracy of the piece cigarette box.

[0035] On the basis of the above technical solution, the detection unit 110 includes: an intelligent camera and a piece cigarette box in-place sensor group; the piece cigarette box in-place sensor group is used to detect the transportation position of the target piece cigarette box on the conveyor belt, and send a first in-place signal to the control unit 130 when the transportation position reaches the photo taking position; the control unit 130 is also used to generate an image acquisition signal according to the received first in-place signal, and control the intelligent camera to acquire the appearance image of the target piece cigarette box on the conveyor belt according to the image acquisition signal; the intelligent camera is used to acquire the appearance image of the target piece cigarette box on the conveyor belt, and send the appearance image to the control unit 130.

[0036] Among them, the smart camera refers to a camera that can automatically focus according to the object being photographed and automatically fill in the light according to the shooting environment. The piece cigarette box in-place sensor group may include multiple piece cigarette box in-place sensors. One or more piece cigarette box in-place sensors are used to implement the information collection trigger sensor corresponding to the preset quality inspection items. The transportation position may refer to the current position of the target piece cigarette box. The photo taking position may refer to the pre-set position for taking an image of the target piece cigarette box. The first in-place signal may be used to inform the control unit 130 that it is necessary to control the smart camera to capture the image. The image acquisition signal may refer to the signal used by the control unit 130 to control the smart camera to capture the image. The appearance image may refer to the complete image of each surface on the packaging box of the target piece cigarette box.

[0037] In this embodiment, six smart cameras are arranged. Each smart camera shoots one side of the outer packaging of the target cigarette box, so that the six smart cameras can shoot the target cigarette box in all directions without blind spots. The conveyor belt is a conveyor belt with a hollow middle, so that the image of the sixth side that is in contact with the conveyor belt can be captured without turning over the target cigarette box. Multiple smart cameras can synchronously capture the appearance image of the target cigarette box, or asynchronously (sequentially) capture the appearance image of the target cigarette box.

[0038] On the basis of the above technical solution, the control unit 130 includes: a PLC controller and a vision controller; the PLC controller is used to generate an image acquisition signal according to the received first arrival signal, and send the image acquisition signal to the vision controller; the vision controller is used to control the intelligent camera to capture the appearance image of the target cigarette box on the conveyor belt according to the received image acquisition signal; the vision controller is also used to perform appearance detection according to the received appearance image and a preset appearance detection model, determine the appearance detection result of the target cigarette box, and send the appearance detection result to the PLC controller; the PLC controller is also used to generate a rejection instruction for the target cigarette box when the appearance detection result is an unqualified result, or generate a retention instruction for the target cigarette box when the appearance detection result is a qualified result.

[0039] Among them, the PLC controller may refer to a programmable logic controller (Programmable Logic Controller). The PLC controller may be used to inform the visual controller to control the smart camera to collect images when the target cigarette box reaches a specific position, and generate corresponding execution instructions according to the appearance detection result. The visual controller may be used to control the shooting of the smart camera, and detect the integrity of the packaging according to the appearance image. The preset appearance detection model may refer to the appearance detection model constructed by the pre-trained deep learning network. The preset appearance detection model may be used to detect the integrity of the outer packaging of the target cigarette box according to the appearance image. The preset appearance detection model may output an unqualified result when it is detected that the target cigarette box has problems such as the cigarette box being damaged or the sealing tape being unsealed. The appearance detection result may be a qualified result or an unqualified result. The execution instruction is a rejection instruction or a retention instruction. The rejection instruction may refer to an instruction to instruct the display execution unit 120 to reject the target cigarette box. The retention instruction may refer to an instruction to instruct the display execution unit 120 to retain the target cigarette box for storage.

[0040] In this embodiment, the preset appearance detection model can form a training set and a validation set of the model based on the appearance images collected historically and the corresponding completeness. The appearance images are used as model inputs, and the corresponding completeness is used as training labels. For example, the preset appearance detection model can be composed of a convolutional neural network and YOLOv7.

[0041] Exemplarily, the PLC controller generates an image acquisition signal according to the received first arrival signal, and sends the image acquisition signal to the visual controller. The visual controller controls the smart camera to acquire the appearance image of the target cigarette box on the conveyor belt according to the received image acquisition signal.

[0042] On the basis of the above technical solution, the detection unit 110 also includes: a brand label detection sensor and a barcode scanner; a cigarette box in-place sensor group, which is used to detect the transportation position of the target cigarette box on the conveyor belt, and send a second in-place signal to the control unit 130 when the transportation position reaches the scanning position; the control unit 130 is also used to generate a brand recognition signal and a barcode recognition signal according to the received second in-place signal, and send the brand recognition signal to the brand label detection sensor, and send the barcode recognition signal to the barcode recognition signal; the brand label detection sensor is used to collect the brand of cigarettes on the outer packaging of the target cigarette box according to the received brand recognition signal, and send the brand of cigarettes to the control unit 130; the barcode scanner is used to collect the No. 1 engineering code on the outer packaging of the target cigarette box according to the received barcode recognition signal, and send the No. 1 engineering code to the control unit 130.

[0043] The scanning position may refer to a pre-set position for information identification of the target cigarette box. The second in-place signal may be used to inform the control unit 130 that it is necessary to control the brand label detection sensor to perform brand identification, based on controlling the barcode scanner to perform barcode identification. The brand identification signal may refer to a signal used by the control unit 130 to control the brand label detection sensor to perform brand identification. The barcode identification signal may refer to a signal used by the control unit 130 to control the barcode scanner to perform barcode identification.

[0044] The brand label detection sensor may be a non-contact automatic identification device. The identification object of the brand label detection sensor is the brand label of the target cigarette box on the outer packaging. For example, the brand label detection sensor may capture the brand of the cigarette through an optical or radio frequency signal, and convert the brand of the cigarette into an electrical signal and transmit it to the control unit 130. The brand of the cigarette may refer to a unique code used in the tobacco industry to identify the circulation information of cigarettes. The brand of the cigarette may be expressed as a 32-bit digital inkjet code.

[0045] The barcode scanner can also be a contactless automatic identification device. The barcode scanner identifies the No. 1 engineering code on the outer packaging of the target cigarette box. The No. 1 engineering code is a product code unique to the tobacco industry. The No. 1 engineering code can be used to identify and manage the production and circulation of cigarettes and related products. The No. 1 engineering code can be expressed as a combination of 15 Arabic numerals.

[0046] In this embodiment, the PLC controller in the control unit 130 can be used to generate a brand recognition signal and a barcode recognition signal based on the received second in-place signal, and send the brand recognition signal to the brand label detection sensor, and send the barcode recognition signal to the barcode recognition signal.

[0047] For example, the appearance image of the target cigarette box taken by the smart camera can be named according to the engineering code No. 1 of the target cigarette box, so as to avoid naming the appearance image irregularly, or avoid naming it according to the image shooting time, thereby realizing accurate query of the appearance image. At present, the appearance images of multiple cigarette boxes are taken at the same time. If the appearance images are named according to the image shooting time, the appearance images taken at the same time will have the same name, resulting in the inability to accurately find the corresponding cigarette box when searching for the appearance image of a certain cigarette box later.

[0048] On the basis of the above technical scheme, the quality inspection results also include: brand and engineering code matching results; the PLC controller is also used to perform consistency matching based on the received brand number of the cigarette and the No. 1 engineering code to determine the brand and engineering code matching results of the target cigarette box; the PLC controller is also used to generate a rejection instruction for the target cigarette box when the brand and engineering code matching result is an unqualified result, or to generate a retention instruction for the target cigarette box when the brand and engineering code matching result is a qualified result.

[0049] The brand and engineering code matching result may refer to whether the brand and engineering code of the identified target cigarette box are both used to represent the same target cigarette box. If they can be represented, the brand and engineering code matching result is a qualified result. If they cannot be represented, the brand and engineering code matching result is an unqualified result.

[0050] For example, if at least one of the brand number and the No. 1 engineering code is null, the brand number and engineering code matching result is also an unqualified result. The brand number and engineering code matching result can also be used to characterize the situation where the brand label is wrong or the cigarette is bumped, so that the cigarette box system has the function of brand detection.

[0051] On the basis of the above technical solution, the detection unit 110 also includes: an electronic belt scale; a piece cigarette box in-place sensor group, which is used to detect the transportation position of the target piece cigarette box on the conveyor belt, and send a third in-place signal to the control unit 130 when the transportation position reaches the weighing position; the control unit 130 is also used to generate a weight collection signal based on the received third in-place signal, and send the weight collection signal to the electronic belt scale; the electronic belt scale is used to collect the weighing result of the target piece cigarette box based on the received weight collection signal, and send the weighing result to the control unit 130.

[0052] The electronic belt scale refers to a device that can be used for weighing on a conveyor belt. The weighing position may refer to a pre-set position for weighing a target cigarette box. The third in-place signal may be used to inform the control unit 130 that it is necessary to control the electronic belt scale for weighing. The weight collection signal may refer to a signal used by the control unit 130 to control the electronic belt scale for weight collection. The weighing result may refer to the weight of the target cigarette box collected on the conveyor belt.

[0053] In this embodiment, the PLC controller in the control unit 130 may be used to generate a weight collection signal according to the received third arrival signal, and send the weight collection signal to the electronic belt scale.

[0054] On the basis of the above technical scheme, the quality inspection results also include: weight inspection results; the PLC controller is also used to perform weight inspection according to the standard weight corresponding to the target cigarette box and the received weighing result to determine the weight inspection result of the target cigarette box; the PLC controller is also used to generate a rejection instruction for the target cigarette box when the weight inspection result is an unqualified result, or to generate a retention instruction for the target cigarette box when the weight inspection result is a qualified result.

[0055] The weight test result may refer to the test result of whether the actual weight of the target cigarette box is within the error range with the standard weight. The weight test result may be used to characterize whether there are any missing cigarette rods in the target cigarette box. The standard weight may refer to the preset storage weight corresponding to each type of cigarette box.

[0056] In this embodiment, the PLC controller performs a weight detection based on the standard weight corresponding to the target cigarette box and the received weighing result. If the weight difference between the weighing result of the target cigarette box and the standard weight is greater than the preset error threshold, the weight detection result of the target cigarette box is determined to be an unqualified result; if the weight difference between the weighing result of the target cigarette box and the standard weight is less than or equal to the preset error threshold, the weight detection result of the target cigarette box is determined to be a qualified result, so that the cigarette box system has the function of missing strip detection. For example, the preset error threshold can be but is not limited to ±200 grams.

[0057] For example, according to the cigarette brand number of the target cigarette box, the whole box weight corresponding to the cigarette brand number of the target cigarette box can be determined as the standard weight of the target cigarette box from the pre-issued packing task list.

[0058] On the basis of the above technical solution, the display execution unit 120 includes: an industrial computer, a touch screen, an alarm light and a buzzer for a rejection device; the industrial computer is used to receive the appearance information and quality inspection results of the target cigarette box, and control the touch screen to display the appearance information and quality inspection results; the rejection device is used to receive the execution instruction of the target cigarette box, and reject the target cigarette box when the execution instruction is a rejection instruction; the control unit 130 is also used to generate a warning signal for the target cigarette box according to the detection type corresponding to the unqualified result, and send the warning signal to the alarm light and the buzzer; the alarm light and the buzzer are used to control the flashing of the alarm light and the sounding of the buzzer according to the received warning signal.

[0059] Among them, the quality inspection results may include but are not limited to appearance inspection results, brand and engineering code matching results and weight inspection results. If there is at least one unqualified result among the appearance inspection results, brand and engineering code matching results and weight inspection results, the quality inspection result is an unqualified result, so that parallel inspection can be performed, further improving the inspection efficiency of cigarette boxes. The warning signal can be used to control the alarm light and buzzer to operate. The alarm light and buzzer can be used to indicate specific information through the warning light and / or buzzer, and prompt the user.

[0060] In this embodiment, the PLC controller in the control unit 130 can be used to generate a warning signal for the target cigarette box according to the detection type corresponding to the unqualified result, and send the warning signal to the alarm light and buzzer. A set of alarm lights and buzzers are set separately for the appearance inspection project, and a set of alarm lights and buzzers are set together for the brand and engineering code consistency inspection project and the weight inspection project. In order to distinguish the rejection type, two different rejection alarm methods can be set. When the brand number or No. 1 engineering code of the target cigarette box is wrong (the brand number and engineering code matching result is an unqualified result), the cigarette weighing rejection alarm light will light up for 3 seconds and then go out; when the weight of the cigarette is unqualified, the cigarette weighing rejection alarm light will always be on, and it needs to be manually reset to turn it off.

[0061] On the basis of the above technical solution, the industrial computer is also used to send the system working state adjustment instruction triggered by the user on the touch screen to the control unit 130; the control unit 130 is also used to generate a display signal corresponding to the adjusted system state according to the received system working state adjustment instruction, and send the display signal to the alarm light and the buzzer; the alarm light and the buzzer are also used to control the flashing of the alarm light and the sounding of the buzzer according to the received display signal.

[0062] The system working state adjustment instruction may refer to an instruction for the user to control the adjustment of the working state of the entire piece of smoke box detection system. For example, the user may select the system working state to be adjusted on the touch screen, so that the industrial computer generates the system working state adjustment instruction according to the system working state selected by the user, and sends the system working state adjustment instruction to the control unit 130. The display signal may be used to control the alarm light and the buzzer to prompt the user of the working state of the entire piece of smoke box detection system.

[0063] In this embodiment, the PLC controller in the control unit 130 is also used to generate a display signal corresponding to the adjusted system state according to the received system working state adjustment instruction, and send the display signal to the alarm light and buzzer. Table 1 gives an example of a system working state and display phenomenon, as follows.

[0064] Table 1 An example of a system working state and display phenomenon

[0065] System working status Display phenomenon Normal operation status Green light is on, red light is off, buzzer is off Debug status The green light goes out, the red light comes on, and the buzzer sounds for 5 minutes. Rejection function off state The green light goes out, the red light comes on, and the buzzer sounds for 10 minutes. Eliminate the state of missing cigarette boxes The red light is on for 5 seconds and the buzzer sounds for 5 seconds

[0066] Referring to Table 1, when the system is adjusted from other states to normal operation, the PLC controller generates a display signal of "green light on, red light off, buzzer off", and sends the display signal to the alarm light and the buzzer, so that the alarm light and the buzzer are executed according to the green light on, red light off, and buzzer off. At present, when it is detected that the system is turned off from the rejection function or is in the debugging mode, it does not have a prompt function, and it is easy to fail to remind the operator in time when the rejection is turned off or in the debugging mode, resulting in the situation that unqualified products are not rejected in time. On this basis, the piece cigarette box detection system in this embodiment has a system status detection prompt function, that is, when it is detected that the system is turned off from the rejection function or is in the debugging mode, an audible and visual alarm is performed to prompt the user of the current working status of the system in real time, so as to avoid the user from being confused about the system working status, and performing system operations that cannot be performed in a certain working state in a certain working state, such as performing piece cigarette box detection in the state where the rejection function is turned off and wanting to reject unqualified products.

[0067] Based on the above technical solution, the collection and access unit 140 includes: an industrial gateway, a storage server and a client; the industrial gateway is used to collect the appearance information and quality inspection results of the target cigarette box from the control unit 130 or the display execution unit 120, and send the appearance information and quality inspection results of the target cigarette box to the storage server; the storage server is used to store the received appearance information and quality inspection results of the target cigarette box; the client is used to respond to the user's access operation, query the access result corresponding to the access operation from the storage server, and display the access result corresponding to the access operation on the display screen.

[0068] Among them, the industrial gateway may refer to an advanced protocol conversion device. The industrial gateway can be used to connect heterogeneous networks and communication protocols to achieve intelligent interconnection between devices. The storage server may be a server independent of the detection monocular, the control unit 130, and the display execution unit 120. The storage server may be a server that does not delete the storage content when the power is off. The client allows users to access the data stored in the storage server. The access operation may refer to the operation that the user enters in a specific application of the client to query the information. The user can query the production data involved in the entire production process of the cigarette corresponding to the No. 1 engineering code by entering the No. 1 engineering code, that is, the access result.

[0069] In this embodiment, before the storage server is set up, the system can store information, such as appearance images, with little space, and in order to maintain the efficiency of equipment operation, after the system is powered on again, it will automatically clear the detection records and defect images stored before power-on. On this basis, in this embodiment, the cigarette box inspection system is equipped with an independent storage server, so that while maintaining the efficiency of equipment operation, the quality inspection results and appearance information of the cigarette boxes are completely stored, and it is easy to trace.

[0070] Optionally, an embodiment of the present invention further provides a preferred cigarette box detection system. Figure 2 A schematic diagram of the structure of a preferred smoke box detection system is given. Figure 2 As shown, the system includes: smart camera 1, smart camera 2, smart camera 3, smart camera 4, smart camera 5, smart camera 6, a cigarette box arrival sensor group, a brand label detection sensor, a barcode scanner, an electronic belt scale, a visual controller, a PLC controller, an industrial computer, a touch screen, a rejection device, an alarm light and a buzzer, an industrial gateway, a storage server and a client.

[0071] Among them, smart camera 1, smart camera 2, smart camera 3, smart camera 4, smart camera 5, smart camera 6, industrial computer and industrial gateway are all connected to the visual controller. The cigarette box arrival sensor group, brand label detection sensor, barcode scanner, electronic belt scale, industrial computer, rejection device, alarm light and buzzer, industrial gateway and visual controller are all connected to the PLC controller. The industrial computer is connected to the touch screen. The industrial gateway and the client are connected to the storage server respectively.

[0072] Specifically, six smart cameras detect six surfaces of the target cigarette box respectively. The cigarette box arrival sensor group is used to determine the arrival status of the target cigarette box. When the target cigarette box is in place, the PLC controller controls the visual controller to shoot and identify the appearance of the target cigarette box, the PLC controller controls the brand label detection sensor to identify the brand number of the target cigarette box, controls the barcode scanner to scan the No. 1 engineering code of the target cigarette box, and controls the electronic belt scale to weigh the target cigarette box; and returns the brand number, No. 1 engineering code and weighing result of the target cigarette box to the PLC controller. The appearance detection result of the target cigarette box determined by the visual controller is returned to the PLC controller. The PLC controls whether the target cigarette box is rejected based on the appearance detection result, whether the brand number correctly matches the No. 1 engineering code, and whether the weighing result meets the standard weight requirements corresponding to the brand number of the target cigarette box. The touch screen displays the appearance image of the target cigarette box, the cigarette brand number, the No. 1 engineering code, the weighing result, and the quality inspection result (including the appearance inspection result, whether the cigarette brand number correctly matches the No. 1 engineering code, and whether the weighing result meets the standard weight requirements corresponding to the cigarette brand number of the target cigarette box). The industrial gateway is used to collect inspection data, the server is used for storage, and the client can support remote access to the quality inspection results of the cigarette box.

[0073] Exemplarily, the preferred piece cigarette box inspection system can realize the appearance inspection and traceability of the piece cigarette box. Among them, 6 smart cameras are used to inspect the 6 surfaces of the target piece cigarette box. The PLC controller detects the arrival of the target piece cigarette box through the piece cigarette box arrival sensor. When the target piece cigarette box reaches the predetermined position, the PLC controller sends a shooting signal (image acquisition signal) to the visual controller. The visual controller controls the 6 smart cameras to shoot and identify the 6 surfaces of the target piece cigarette box, and judges whether the appearance quality of the 6 surfaces of the target piece cigarette box meets the preset requirements and whether the sealing quality is normal, and the judgment result is returned to the PLC controller. The PLC controller controls the rejection device to reject the target piece cigarette box with defects in the appearance of the piece cigarette box.

[0074] Among them, the barcode scanner identifies and records the No. 1 engineering code of the target cigarette box. The appearance images of the target cigarette box taken by the 6 smart cameras can be named after the No. 1 engineering code of the target cigarette box. The industrial gateway collects the appearance images of the target cigarette box and stores the appearance images in the storage server. The client can support users to access the appearance images of the target cigarette box. The preferred cigarette box detection system also has a status self-detection alarm prompt function, that is, when the system is manually put into debugging state or the rejection function is turned off, an audible and visual alarm is issued.

[0075] Exemplarily, the preferred cigarette box detection system can realize weighing missing bars and recording based on brand detection. Among them, when the PLC controller determines that the target cigarette box has reached the predetermined position through the cigarette box arrival sensor, the electronic belt scale weighs the target cigarette box, and the PLC controller reads the weighing result of the electronic scale. At the same time, the No. 1 engineering code of the Mubao cigarette box is read, and the brand number of the target cigarette box is read at the same time. In this way, the PLC controller obtains the brand number, No. 1 engineering code and weighing result of the target cigarette box. The PLC controller compares the identified brand number and weighing result with the pre-set standard weight corresponding to the brand number of the cigarette. When the difference is less than a certain weight (preset error threshold), the PLC controller determines that the target cigarette is light in weight and there is a missing bar in the target cigarette box, and controls the rejection device to reject the defective cigarette. In addition, the system has a brand detection function. When at least one of the brand number and the No. 1 engineering code of the target cigarette box cannot be identified, it is also a defective cigarette. The PLC controller controls the rejection device to reject the cigarette, so the system has the function of identifying the brand number of the cigarette. In order to distinguish the rejection type, two different rejection alarm modes are set. When the brand number or the No. 1 engineering code is wrong, the alarm light for the cigarette weighing and rejection will light up for 3 seconds and then go out; when the weight of the cigarette is unqualified, the alarm light for the cigarette weighing and rejection will always be on, and it needs to be manually reset to turn it off. The industrial gateway also obtains the brand number, No. 1 engineering code and weighing results of the target cigarette box from the PLC controller, as well as the corresponding judgment results (appearance inspection results, brand and engineering code matching results, and weight inspection results) and uploads them to the storage server for storage, so that users can query and trace.

[0076] In summary, the advantages of the preferred piece cigarette box detection system are: first, it has a status self-detection alarm prompt function. When the detection system is turned off and the rejection function is turned off or it is in debugging mode, it has a prompt function to promptly remind the operator to intervene in time to keep the equipment in normal status; second, the use of a storage server that is separated from the controller can increase the storage upper limit of production information (appearance images and weighing results, etc.), such as the storage time of production information for several months to a year, which is traceable; third, when checking the production information stored in the traceability history, such as appearance images, because the historically stored appearance images are named with the No. 1 engineering code, the user only needs to enter the No. 1 engineering code to know the information and status of this piece cigarette box during production; fourth, it has the function of piece cigarette weighing missing strip detection and piece cigarette brand detection, and can distinguish and prompt the reasons for rejection through alarm devices (alarm lights and buzzers). It is a relatively complete piece cigarette box quality inspection system.

[0077] The following is an embodiment of a cigarette box detection method provided by an embodiment of the present invention. This method and the cigarette box detection system of the above embodiments belong to the same inventive concept. For details not described in detail in the embodiment of the cigarette box detection method, reference can be made to the above embodiments of the cigarette box detection system.

[0078] Embodiment 2

[0079] Figure 3 A flowchart of a cigarette box inspection method is provided for the second embodiment of the present invention. This embodiment is applicable to the case where quality inspection of cigarette boxes is performed and unqualified products are presented. The method can be performed by a cigarette box inspection system. The cigarette box inspection system can be implemented in the form of hardware and / or software. The system can be configured in a vehicle. Figure 3 As shown, the method includes:

[0080] S310, collecting appearance information of the target cigarette box on the conveyor belt through the detection unit.

[0081] The cigarette box detection system includes: a detection unit, a display execution unit, a control unit, and a collection and access unit. The control unit is connected to the detection unit, the display execution unit, and the collection and access unit respectively.

[0082] S320, performing quality inspection on the target cigarette box according to the appearance information of the target cigarette box through the control unit, determining the quality inspection result of the target cigarette box, and generating an execution instruction of the target cigarette box according to the quality inspection result.

[0083] S330, displaying the appearance information and quality inspection results of the target cigarette box through the display execution unit, and rejecting the target cigarette box according to the execution instruction.

[0084] S340: Store the appearance information and quality inspection results of the target cigarette box through the collection and access unit.

[0085] The technical solution of the embodiment of the present invention is to connect the detection unit, the display execution unit and the collection and access unit respectively through the control unit; the appearance information of the target cigarette box on the conveyor belt is collected through the detection unit; the quality inspection is performed by the control unit according to the appearance information of the target cigarette box, the quality inspection result of the target cigarette box is determined, and the execution instruction of the target cigarette box is generated according to the quality inspection result; the appearance information and quality inspection result of the target cigarette box are displayed by the display execution unit, and the target cigarette box is rejected according to the execution instruction; the appearance information and quality inspection result of the target cigarette box are stored by the collection and access unit, thereby realizing effective inspection of the cigarette box and improving the inspection efficiency and accuracy of the cigarette box.

[0086] On the basis of the above technical solution, the detection unit includes: an intelligent camera and a piece cigarette box in-position sensor group; "collecting the appearance information of the target piece cigarette box on the conveyor belt through the detection unit" may include: detecting the transportation position of the target piece cigarette box on the conveyor belt through the piece cigarette box in-position sensor group, and sending a first in-position signal to the control unit when the transportation position reaches the photo taking position; generating an image acquisition signal according to the received first in-position signal by the control unit, and controlling the intelligent camera to collect the appearance image of the target piece cigarette box on the conveyor belt according to the image acquisition signal; collecting the appearance image of the target piece cigarette box on the conveyor belt through the intelligent camera, and sending the appearance image to the control unit.

[0087] On the basis of the above technical scheme, the control unit includes: a PLC controller and a visual controller; "performing quality inspection according to the appearance information of the target cigarette box by the control unit, determining the quality inspection result of the target cigarette box, and generating an execution instruction of the target cigarette box according to the quality inspection result" may include: generating an image acquisition signal according to the received first arrival signal by the PLC controller, and sending the image acquisition signal to the visual controller; controlling the smart camera to acquire the appearance image of the target cigarette box on the conveyor belt according to the received image acquisition signal by the visual controller; performing appearance inspection according to the received appearance image and a preset appearance inspection model by the visual controller, determining the appearance inspection result of the target cigarette box, and sending the appearance inspection result to the PLC controller; generating a rejection instruction for the target cigarette box when the appearance inspection result is an unqualified result by the PLC controller, or generating a retention instruction for the target cigarette box when the appearance inspection result is a qualified result.

[0088] On the basis of the above technical scheme, the detection unit also includes: a brand label detection sensor and a barcode scanner; "collecting the appearance information of the target cigarette box on the conveyor belt through the detection unit" may include: detecting the transportation position of the target cigarette box on the conveyor belt through the cigarette box in-place sensor group, and sending a second in-place signal to the control unit when the transportation position reaches the scanning position; generating a brand recognition signal and a barcode recognition signal according to the received second in-place signal through the control unit, and sending the brand recognition signal to the brand label detection sensor, and sending the barcode recognition signal to the barcode recognition signal; collecting the brand number of the target cigarette box on the outer packaging according to the received brand recognition signal through the brand label detection sensor, and sending the brand number of the target cigarette box to the control unit; collecting the No. 1 engineering code on the outer packaging of the target cigarette box according to the received barcode recognition signal through the barcode scanner, and sending the No. 1 engineering code to the control unit.

[0089] On the basis of the above technical scheme, the quality inspection results also include: brand and engineering code matching results; "performing quality inspection according to the appearance information of the target cigarette box through the control unit, determining the quality inspection result of the target cigarette box, and generating execution instructions for the target cigarette box according to the quality inspection results" may include: performing consistency matching according to the received brand number of the cigarette and the No. 1 engineering code through the PLC controller to determine the brand and engineering code matching result of the target cigarette box; generating a rejection instruction for the target cigarette box when the brand and engineering code matching result is an unqualified result through the PLC controller, or generating a retention instruction for the target cigarette box when the brand and engineering code matching result is a qualified result.

[0090] On the basis of the above technical solution, the detection unit also includes: an electronic belt scale; "collecting the appearance information of the target cigarette box on the conveyor belt through the detection unit" may include: detecting the transportation position of the target cigarette box on the conveyor belt through the cigarette box in-place sensor group, and sending a third in-place signal to the control unit when the transportation position reaches the weighing position; generating a weight collection signal according to the received third in-place signal through the control unit, and sending the weight collection signal to the electronic belt scale; collecting the weighing result of the target cigarette box according to the received weight collection signal through the electronic belt scale, and sending the weighing result to the control unit.

[0091] On the basis of the above technical scheme, the quality inspection results also include: weight inspection results; "performing quality inspection according to the appearance information of the target cigarette box through the control unit, determining the quality inspection result of the target cigarette box, and generating execution instructions for the target cigarette box based on the quality inspection results" may include: performing weight inspection according to the standard weight corresponding to the target cigarette box and the received weighing result through the PLC controller to determine the weight inspection result of the target cigarette box; through the PLC controller, it is also used to generate a rejection instruction for the target cigarette box when the weight inspection result is an unqualified result, or to generate a retention instruction for the target cigarette box when the weight inspection result is a qualified result.

[0092] On the basis of the above technical scheme, the display execution unit includes: an industrial computer, a touch screen, an alarm light and a buzzer for a rejection device; "displaying the appearance information and quality inspection results of the target cigarette box through the display execution unit, and rejecting the target cigarette box according to the execution instruction" may include: receiving the appearance information and quality inspection results of the target cigarette box through the industrial computer, and controlling the touch screen to display the appearance information and quality inspection results; receiving the execution instruction of the target cigarette box through the rejection device, and rejecting the target cigarette box when the execution instruction is a rejection instruction; generating a warning signal for the target cigarette box according to the detection type corresponding to the unqualified result through the control unit, and sending the warning signal to the alarm light and the buzzer; controlling the flashing of the alarm light and the sounding of the buzzer according to the received warning signal through the alarm light and the buzzer.

[0093] On the basis of the above technical solution, the method also includes: sending the system working state adjustment instruction triggered by the user on the touch screen to the control unit through the industrial computer; generating a display signal corresponding to the adjusted system state according to the received system working state adjustment instruction through the control unit, and sending the display signal to the alarm light and the buzzer; controlling the flashing of the alarm light and the sounding of the buzzer according to the received display signal through the alarm light and the buzzer.

[0094] On the basis of the above technical solution, the collection and access unit includes: an industrial gateway, a storage server and a client; "storing the appearance information and quality inspection results of the target cigarette box through the collection and access unit" may include: collecting the appearance information and quality inspection results of the target cigarette box from the control unit or the display execution unit through the industrial gateway, and sending the appearance information and quality inspection results of the target cigarette box to the storage server; storing the received appearance information and quality inspection results of the target cigarette box through the storage server; responding to the user's access operation through the client, querying the access result corresponding to the access operation from the storage server, and displaying the access result corresponding to the access operation on the display screen.

[0095] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0096] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cigarette box detection system, characterized in that: include: A detection unit, a display execution unit, a control unit and a collection and access unit, wherein the control unit is connected to the detection unit, the display execution unit and the collection and access unit respectively; A detection unit, used to collect appearance information of the target cigarette box on the conveyor belt; A control unit, used to perform quality inspection according to the appearance information of the target cigarette box, determine the quality inspection result of the target cigarette box, and generate an execution instruction of the target cigarette box according to the quality inspection result; A display execution unit, used to display the appearance information and quality inspection results of the target cigarette box, and to reject the target cigarette box according to the execution instruction; The collection and access unit is used to store the appearance information and quality inspection results of the target cigarette box.

2. The system according to claim 1, characterized in that The detection unit includes: a smart camera and a smoke box arrival sensor group; The cigarette box arrival sensor group is used to detect the delivery position of the target cigarette box on the conveyor belt and send a first arrival signal to the control unit when the delivery position reaches the photographing position; The control unit is further used to generate an image acquisition signal according to the received first arrival signal, and control the intelligent camera to acquire the appearance image of the target cigarette box on the conveyor belt according to the image acquisition signal; The smart camera is used to collect the appearance image of the target cigarette box on the conveyor belt and send the appearance image to the control unit.

3. The system according to claim 2, characterized in that The control unit includes: a PLC controller and a visual controller; A PLC controller, used for generating an image acquisition signal according to the received first in-position signal, and sending the image acquisition signal to the vision controller; A visual controller, used for controlling the intelligent camera to acquire the appearance image of the target cigarette box on the conveyor belt according to the received image acquisition signal; The visual controller is further used to perform appearance inspection according to the received appearance image and the preset appearance inspection model, determine the appearance inspection result of the target cigarette box, and send the appearance inspection result to the PLC controller; The PLC controller is also used to generate a rejection instruction for the target cigarette box when the appearance inspection result is an unqualified result, or to generate a retention instruction for the target cigarette box when the appearance inspection result is a qualified result.

4. The system according to claim 1, characterized in that The detection unit also includes: a brand label detection sensor and a barcode scanner; The cigarette box arrival sensor group is used to detect the delivery position of the target cigarette box on the conveyor belt and send a second arrival signal to the control unit when the delivery position reaches the code scanning position; The control unit is further used to generate a brand recognition signal and a barcode recognition signal according to the received second in-place signal, and send the brand recognition signal to the brand label detection sensor, and send the barcode recognition signal to the barcode recognition signal; The brand label detection sensor is used to collect the brand number of the target cigarette box on the outer packaging according to the received brand recognition signal, and send the brand number of the target cigarette box to the control unit; The barcode scanner is used to collect the No. 1 engineering code on the outer packaging of the target cigarette box according to the received barcode recognition signal, and send the No. 1 engineering code to the control unit.

5. The system according to claim 4, characterized in that The quality inspection results also include: brand and engineering code matching results; The PLC controller is also used to perform consistency matching based on the received brand number of the cigarette case and the No. 1 engineering code to determine the matching result of the brand number and engineering code of the target cigarette case; The PLC controller is also used to generate a rejection instruction for the target cigarette box when the result of matching the brand number and the engineering code is an unqualified result, or to generate a retention instruction for the target cigarette box when the result of matching the brand number and the engineering code is a qualified result.

6. The system according to claim 1, characterized in that The detection unit also includes: an electronic belt scale; The cigarette box arrival sensor group is used to detect the delivery position of the target cigarette box on the conveyor belt and send a third arrival signal to the control unit when the delivery position reaches the weighing position; The control unit is further used to generate a weight collection signal according to the received third arrival signal, and send the weight collection signal to the electronic belt scale; The electronic belt scale is used to collect the weighing result of the target cigarette box according to the received weight collection signal, and send the weighing result to the control unit.

7. The system according to claim 6, characterized in that The quality test results also include: weight test results; The PLC controller is also used to perform weight detection according to the standard weight corresponding to the target cigarette box and the received weighing result, and determine the weight detection result of the target cigarette box; The PLC controller is also used to generate a rejection instruction for the target cigarette box when the weight detection result is an unqualified result, or to generate a retention instruction for the target cigarette box when the weight detection result is a qualified result.

8. The system according to claim 1, characterized in that The display execution unit includes: an industrial computer, a touch screen, a rejection device alarm light and a buzzer; The industrial computer is used to receive the appearance information and quality inspection results of the target cigarette box and control the touch screen to display the appearance information and quality inspection results; The rejecting device is used to receive the execution instruction of the target cigarette box and reject the target cigarette box when the execution instruction is a reject instruction; The control unit is also used to generate a warning signal for the target smoke box according to the detection type corresponding to the unqualified result, and send the warning signal to the alarm light and buzzer; The alarm light and buzzer are used to control the flashing of the alarm light and the sounding of the buzzer according to the received warning signal.

9. The system according to claim 8, characterized in that The industrial computer is also used to send the system working state adjustment instruction triggered by the user on the touch screen to the control unit; The control unit is further used to generate a display signal corresponding to the adjusted state of the system according to the received system working state adjustment instruction, and send the display signal to the alarm light and the buzzer; The alarm light and buzzer are also used to control the flashing of the alarm light and the sounding of the buzzer according to the received display signal.

10. The system according to claim 1, characterized in that The acquisition and access unit comprises: Industrial gateways, storage servers, and clients; The industrial gateway is used to collect the appearance information and quality inspection results of the target cigarette box from the control unit or the display execution unit, and send the appearance information and quality inspection results of the target cigarette box to the storage server; A storage server, used to store the received appearance information and quality inspection results of the target cigarette box; The client is used to respond to the user's access operation, query the access result corresponding to the access operation from the storage server, and display the access result corresponding to the access operation on the display screen.

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