Laser perforation apparatus operation monitoring system

Abstract

The application discloses a kind of laser perforating equipment operation monitoring systems, the system mainly is through the image of the fluctuation state of cigarette end rotation and the image of the flame generated by laser irradiation to cigarette surface;The obtained image is modeled with key image, the absolute difference between each group of obtained processed data and historical data is compared, and each group of data is compared with each other relative difference;The model built is used to cover the flame, cigarette end face and the like in the display, and the enhanced warning effect is realized by the superimposed model and the displayed pattern.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field, and particularly relates to a laser perforation equipment operation monitoring system and a state analysis method thereof. BACKGROUND

[0002] Laser perforation has been widely applied in various industries. Since the 21st century, high-energy laser has been used to perforate cigarette filters or cigarette sections, which has achieved good application effects in improving the taste of cigarettes, reducing the tar content of cigarettes, and improving the suction resistance. However, the application also reflects the pain points of narrow installation space, fast perforation speed, short laser pulse time, invisibility of far-infrared CO2 laser, large dust, and inability to quickly monitor the running state of the equipment. My granted invention patent 201810341183.1 provides a laser cigarette paper or cigarette perforation monitoring device and a discrimination detection method. The device uses a high-speed imaging sensor to quickly image and discriminate the flame generated by perforation, and monitors and adjusts the function of the obtained flame characteristic signal. The device uses the flame generated by perforation and reflects the energy and hole forming condition of perforation according to the change of the characteristic data of the flame. However, due to the large amount of dust on site, dust and oil often stick to the surface of the sensor lens, causing distortion of the flame signal collection and processing, and even unable to operate normally, often requiring shutdown for wiping to ensure the correct operation of the detection device.

[0003] The conventional observation of the running state by the human eye often affects the accurate judgment of the running state of the perforation equipment due to the responsibility, technical level, maintenance experience of the personnel, different descriptions of the flame state during operation, and subjective opinions on the swing amplitude of the cigarette during rotation. In addition, the observable area is small and low in height, and the personnel observation is not convenient, especially when observing for a long time, it is easy to get tired.

[0004] In addition, when observing with artificial glasses, the glasses cannot focus on the flame and the cigarette end face at the same time, and it is impossible to capture the moment when the cigarette end face fluctuates greatly and the flame changes greatly, losing the opportunity for quick judgment. The reason is that when the position of the cigarette does not change much (almost no fluctuation or swing), the flame generated by the laser focusing on the surface of the cigarette is stable, and the size is also stable. When the position of the cigarette fluctuates momentarily, the surface of the cigarette is a circular arc shape, causing the change of the focusing distance of the laser, thereby causing the momentary change of the size of the flame.

[0005] According to experience, whether the perforating equipment runs stably often depends on the following aspects: ① whether the focus point of laser focusing on the surface of the cigarette is at the highest point of the arc, whether the cigarette fluctuates or swings; ② whether the focusing focal length adjustment is appropriate, and whether the focal depth covers the focal length change caused by the fluctuation or swing of the cigarette; ③ the attenuation of the laser power; ④ whether the surface of the perforating drum or the cigarette poking drum is scaled, and the change of the diameter causes the change of the rotation position of the cigarette; ⑤ whether the transmission of the perforating drum and the cigarette poking drum is stable, whether the transmission gear, belt pulley and bearing are normal, and whether the abnormality will cause the swing of the cigarette to increase.

[0006] Therefore, the following factors are considered when judging the running of the perforating equipment: ① whether the end surface fluctuation or swing of the cigarette is large? Whether it exceeds the normal range of 0.2-0.5mm? ② whether the size and brightness of the flame on the surface of the cigarette within 5-20 seconds appear abnormal?

[0007] And the conclusion is:

[0008] ① Since the focal length of the focusing lens is constant, the focal depth is also constant, and when the cigarette fluctuation or swing is within a certain range of 0.2-0.5mm, if the lens position is set properly, the range of focal depth can completely cover the fluctuation range of the cigarette, at this time the flame and its data are stable.

[0009] ② When the cigarette fluctuation or swing is within a certain range of 0.2-0.5mm, but if the lens position is set improperly, the range of focal depth deviates from the fluctuation range of the cigarette and cannot completely cover the fluctuation range of the cigarette, at this time the flame and its data are also unstable.

[0010] ③ If the end surface fluctuation of the cigarette is greater than a certain range of greater than 0.6mm, even if the lens position is set properly, the focal depth range cannot cover the fluctuation range, at this time the flame is unstable and will cause abnormal changes in the flame data.

[0011] ④ In fact, the human eye cannot accurately observe the end surface fluctuation and the abnormality of the flame at the same time, so the above judgment conclusion often cannot be obtained quickly and requires multiple long-time and experienced observations.

[0012] It can be seen that the conventional maintenance relies on the observation, responsibility, experience and technical level of personnel, which greatly affects the equipment maintenance and management level.

[0013] Chinese patent 202110315596.4 discloses that when a human body is perforated, a scanning device is used to scan the inside of the human body to obtain the positioning of internal organs, and an AR glasses obtains the positioning of the appearance of the human body, and the two are combined to determine the accurate position of the perforation. However, as mentioned above, the device on site is small in space and large in dust, and the lens of the scanning device or monitoring device is easy to be dirty and invalid.

[0014] The information disclosed in this Background section is only for the purpose of increasing an understanding of the general context of the present application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known in this field. SUMMARY

[0015] The present application aims to provide a laser perforation equipment operation monitoring system to overcome the above-mentioned defects in the prior art.

[0016] To achieve the above-mentioned purpose, the present application provides a laser perforation equipment operation monitoring system, comprising:

[0017] An image acquisition device for acquiring images of the fluctuation state of the cigarette end rotation and the flame generated by the laser irradiation to the cigarette surface;

[0018] An input unit for inputting the pulse period, duty cycle or punch pulse length of the laser pulse of the laser perforation equipment in current operation;

[0019] A transmission unit for transmitting the data of the input unit and the images acquired by the image acquisition device to a data processing system;

[0020] A data processing system for processing the data of the input unit and the images acquired by the image acquisition device, including the data of the fluctuation operation of the cigarette end rotation, the data of the flame generated by the laser on the cigarette surface and the data of the pulse period, duty cycle or punch pulse length of the laser in current equipment operation;

[0021] The data processing system is located remotely from the equipment site and contains a modeling unit for key image modeling of the acquired images, including the flame profile, the image display model of the cigarette end surface and the column chart reflecting the performance status of the laser, and the relevant early warning information is sent out;

[0022] A data comparison unit for comparing the absolute difference between each set of processed data and historical data, and the relative difference between each set of data;

[0023] A display unit for displaying the above-mentioned established model, setting the outline of the model and / or the color of the model body according to the comparison results and the deviation size, covering the real flame, cigarette end surface, etc. in the display with the display model built, and realizing the enhanced warning effect through the superimposed model and displayed pattern.

[0024] Preferably, in the above technical solution, the image acquisition device is a movable camera attached to a mobile terminal or wearable device or a camera fixed in the field, including a collection sensor for the flame generated by the laser on the cigarette surface and a collection sensor for the image of the fluctuation operation of the cigarette end rotation, or / and.

[0025] The collection sensor or the camera fixed on the scene collects the flame and the cigarette end image respectively under the coordination of the synchronous timing pulse, and stores the corresponding data according to the timing of the synchronous pulse;

[0026] The movable camera attached to the mobile terminal or the wearable device must be selected at a proper angle to simultaneously shoot the perforated flame and the cigarette end image.

[0027] Preferably, in the above technical solution, the image collection device is one or more.

[0028] Preferably, in the above technical solution, the data processing system further comprises a data reduction processing unit, which transforms the flame data in the current laser pulse period, duty cycle or perforating pulse time into data in the same laser pulse period and duty cycle as the historical flame data through the data reduction processing unit.

[0029] A laser perforating device running state analysis method, characterized in that: after the data processing system obtains the image information, the following operations are performed:

[0030] S1 reduction: the flame data in the current laser pulse period and duty cycle are transformed into data in the same laser pulse period and duty cycle as the historical flame data through the data reduction processing unit, the reduction transformation, the establishment of a laser energy power and laser pulse period and duty cycle correspondence table in the data processing system, the acquisition of the laser output power value P0 corresponding to the laser pulse period and duty cycle of the historical data through table lookup, the acquisition of the laser output power value Pi corresponding to the laser pulse period and duty cycle of each collected image, the reduction coefficient Si = (Pi-P0) / P0, and the flame data after reduction correction:

[0031] X1=Si*X1,Xi=Si*Xi;

[0032] S2 modeling: including perforated flame single frame image or at least one frame image from continuous video image, reduction modeling of perforated flame model: identifying the flame image, measuring the height H1, waist diameter D1, shape curve F1, brightness B1 and laser pulse duty cycle T1 of the flame, and establishing the model X1 of the flame according to the obtained characteristic data X(H1, D1, F1, B1, T1);

[0033] The model X1 of the flame is projected to the actual flame, the actual cigarette end surface, the characteristic area, the characteristic device and the display parameters in the display interface in the form of contour line or whole, so as to enhance the display effect of the perforated flame, the cigarette end surface, the characteristic area and the parameters in augmented reality.

[0034] S3 data comparison:

[0035] Comparison of flame model data: compare flame model X1 with historical data X0 in the cloud server or data server in height H0, waist circumference diameter D0, body curve F0, brightness B0, laser pulse duty cycle T0, calculate the absolute deviation value ΔX1= (X1-X0) (H1-H0), (D1-D0), (B1-B0), (F1-F0), (T1-T0) and relative deviation value ΔX1%= (X1-X0) / X0 (H1-H0) / H0, (D1-D0) / D0, (B1-B0) / B0, (F1-F0) / F0, (T1-T0) / T0, obtain data set 1;

[0036] Or compare each frame of image Xi after the origin of the continuous video image with the historical data X0 in the data processing system, including height H0, waist circumference diameter D0, body curve F0, brightness B0, laser pulse duty cycle T0, calculate the absolute deviation value ΔXi= (Xi-X0) (Hi-H0), (Di-D0), (Bi-B0), (Fi-F0), (Ti-T0) and relative deviation value ΔXi%= (Xi-X0) / X0 (Hi-H0) / H0, (Di-D0) / D0, (Bi-B0) / B0, (Fi-F0) / F0, (Ti-T0) / T0, obtain data set 2;

[0037] Or compare each frame of image Xi after the origin of the continuous video image with the established flame model X1 in feature data, calculate the absolute deviation value ΔXi= (Hi-H1), (Di-D1), (Bi-B1), (Fi-F1) and relative deviation value ΔXi%= (Xi-X1) / X1, obtain data set 3;

[0038] Comparison of cigarette end face model data: compare each frame of image Yi in the continuous video image with the established cigarette model Y1 in feature data, calculate the fluctuation or swing distance L of cigarette position relative to Y1, take its maximum value MAX-Li, obtain data set 4;

[0039] The comparison also includes that when the same pulse timing, the relative deviation value ΔXi%= (Xi-X0) / X0 of flame model data Xi and historical data X0 is obtained, and the corresponding cigarette end face model data Yi is obtained, data set 5 is obtained;

[0040] S4: display frame setting: including model contour line or model body color setting and display interface setting information display frame setting:

[0041] Cigarette position and maintenance warning display box: when the relative deviation of laser pulse duty cycle T is less than 5%, there is more than one data in data group 1, data group 2, especially data group 2, whose relative deviation value ΔXi% exceeds 5%-8%, that is, it is determined that the cigarette position setting is inaccurate or the drum and cigarette transfer wheel needs maintenance, the corresponding information box is flickered and the data is displayed; or, the relative deviation value ΔXi% of a certain data in data group 5 exceeds 5%-8% at the same time the fluctuation or swing distance L of cigarette Yi is greater than 0.3-1.2mm, that is, it can be determined that the cigarette transfer wheel needs maintenance, the corresponding information box is flickered and the data is displayed;

[0042] Laser and optical path efficiency warning display box: when the relative deviation of laser pulse duty cycle is greater than 5%, the relative deviation value ΔXi% of other data in data group 1, data group 2, especially data group 2 is less than 5%-8%, that is, it can be determined that the efficiency of laser energy and optical path has decreased, the corresponding information box is flickered and the data is displayed;

[0043] Maintenance warning display box: compared with data group 3, if the relative deviation value in any one group of data is less than 5%-8%, that is, the contour line of the flame model is set to white, and the corresponding display box displays the information that the equipment maintenance state is good;

[0044] Compared with data group 3, if the relative deviation value in one group of data exceeds 5%-8%, that is, the contour line of the flame model is set to yellow, and the corresponding display box displays the yellow warning that the equipment needs cleaning and maintenance;

[0045] Compared with data group 3, if the relative deviation value in two or more groups of data exceeds 5%-8%, preferably 6%, that is, the contour line of the flame model is set to orange, and the corresponding display box displays the orange warning that the equipment needs cleaning and maintenance, and the optical path needs cleaning;

[0046] Compared with data group 4, if the fluctuation or swing distance L of Yi, taking the maximum value MAX-Li, is less than 0.3-1.2mm, that is, the contour line of the cigarette end face model is set to white, and the corresponding display box displays the information that the cigarette runs stably;

[0047] Compared with data group 4, if the fluctuation or swing distance L of Yi, taking the maximum value MAX-Li, is greater than 0.3-1.2mm, that is, the contour line of the cigarette end face model is set to red, and the corresponding display box displays the red warning that the equipment needs cleaning and maintenance, and the cigarette position needs adjustment.

[0048] Preferably, in the technical solution, the modeling step comprises the following steps: taking a single frame image of the cigarette end face image or at least one frame image from the continuous video image to establish a model of the cigarette end face; identifying the cigarette end face image, measuring the diameter d and the center of the circumference of the cigarette to establish a model Y1 of the cigarette end face.

[0049] Preferably, in the technical solution, the modeling step comprises the following steps: other characteristic regions or display parameters capable of reflecting the operating state of the laser perforating device are established to establish corresponding data models Z1.

[0050] Preferably, when the relative deviation of the laser pulse duty cycle T is less than 5%, if the relative deviation value △Xi% of the comparison data set 1, data set 2, and other data in data set 2 exceeds 6%, it is determined that the cigarette position setting is inaccurate or the drum or the cigarette poking wheel needs maintenance, and the corresponding information box is flickered and the data is displayed.

[0051] When the relative deviation of the laser pulse duty cycle is greater than 5%, and the relative deviation value △Xi% of the data set 1, data set 2, and other data in data set 2 is less than 6%, it is determined that the energy of the laser and the efficiency of the optical path have decreased, and the corresponding information box is flickered and the data is displayed.

[0052] Maintenance warning display box:

[0053] Comparing data set 3, if the relative deviation value in any one of the data sets is less than 6%, the contour line of the flame model is set to white, and the display box displays the information that the device is in good maintenance state.

[0054] Comparing data set 3, if the relative deviation value in one of the data sets exceeds 6%, the contour line of the flame model is set to yellow, and the display box displays the yellow warning that the device needs cleaning and maintenance.

[0055] Comparing data set 3, if the same relative deviation value in two or more data sets exceeds 6%, the contour line of the flame model is set to orange, and the display box displays the orange warning that the device needs cleaning and maintenance and the optical path needs cleaning.

[0056] Comparing data set 3, if the same relative deviation value in two or more data sets exceeds 6%, the contour line of the flame model is set to orange, and the display box displays the orange warning that the device needs cleaning and maintenance and the optical path needs cleaning.

[0057] Comparing data set 4, if the fluctuation or swing distance L of Yi is less than 0.6-0.8 mm, the maximum value MAX-Li is less than 0.6-0.8 mm, the contour line of the cigarette end face model is set to white, and the display box displays the information that the cigarette is running stably.

[0058] Compared with the data set 4, if the fluctuation or swing distance L of Yi is greater than 0.6-0.8 mm, i.e. the contour line of the cigarette end face model is set to red, and the red warning of the display frame shows that the display device needs cleaning and maintenance and the cigarette position needs adjustment.

[0059] Preferably, in the technical solution, the display unit can be a display arranged near the device site, a display of a mobile terminal or a wearable device, or a remote display.

[0060] Compared with the prior art, the present application has the following beneficial effects:

[0061] ①Solve the contradiction that the glasses cannot focus on the flame and the cigarette end face at the same time when observing by artificial glasses. The processing system or the technical personnel can capture and observe the moment when the cigarette end face fluctuation is large and the flame flicker is large, so as to obtain the opportunity for rapid judgment. Combined with the input of laser pulse period and perforation time, the home processing becomes possible, so as to realize the rapid laser and optical path efficiency judgment and display, the rapid judgment of cigarette position setting deviation, the focus lens focal length position setting deviation, the judgment and display of the perforation drum and the cigarette pushing wheel maintenance deviation, and other rapid diagnosis display functions.

[0062] ②When the cigarette jumps or swings within a certain range of 0.2-0.5 mm, if the flame and its data are stable at this time, it means that the focus lens position setting is appropriate, and the focus depth range can completely cover the cigarette jumping range, without any adjustment action and alarm. However, if the relative deviation of laser pulse duty cycle is greater than 5%, it can be determined that the laser energy and optical path efficiency have decreased.

[0063] ③When the cigarette jumps or swings within a certain range of 0.2-0.5 mm, if the flame and its data are stable at this time, it means that the focus lens position setting is appropriate, and the focus depth range can completely cover the cigarette jumping range, and the relative deviation of laser pulse duty cycle is less than 5%, without any adjustment action and alarm.

[0064] ④When the cigarette jumps or swings within a certain range of 0.2-0.5 mm, if the flame and its data are not stable at this time, it means that the focus lens position setting is inappropriate, so that the focus depth range deviates from the cigarette jumping range, and the lens focal length adjustment display and alarm are needed.

[0065] 5. When the end face of the cigarette jumps more than a certain range of 0.6mm, the display and alarm of improper setting of the cigarette punching position, the display and alarm of whether the surface of the punching drum or the cigarette poking drum is scaled, and the display and alarm of possible damage of the transmission of the punching drum and the cigarette poking drum are sent.

[0066] 6. With the help of on-site sensors or personnel inspection, the remote, rapid, dynamic and real-time maintenance auxiliary system is realized, which does not rely on human observation, responsibility, maintenance experience and technical level, and the equipment maintenance and management level is effectively improved.

[0067] The present application solves the instability problem in current flame observation, and further obtains the performance evaluation result of laser punching by observing the jumping picture of the end face of the cigarette and the fluctuation picture of the flame at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0068] Figure 1 It is a structural schematic diagram of the present application.

[0069] Figure 2 It is a variation curve of the output power of the CO2 laser and the pulse period under different duty cycles. DETAILED DESCRIPTION

[0070] The specific embodiments of the present application will be described in detail below, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.

[0071] Unless otherwise explicitly stated, throughout the specification and claims, the term "comprise" or its variants such as "contain" or "include" will be understood to include the stated element or component, but not to exclude other elements or components.

[0072] The camera is aimed at the monitoring area, and then the monitored area and device appear in the display interface.

[0073] The camera of the client mobile terminal shoots the image or video of the selected area and device, obtains continuous video or single frame image, which is displayed on the display interface, and the video or image is transmitted to the cloud server or data server through the wireless network;

[0074] The area and device include: the flame and area formed when the high-energy laser perforates the surface of the cigarette or cigarette paper, the end face and jump when the cigarette is rolled by the cigarette poking drum, and other characteristic areas or display parameters that can reflect the running state of the laser perforation equipment.

[0075] The cloud server or data server performs the following operations according to the obtained image information:

[0076] Modeling:

[0077] The modeling of the perforation flame model includes taking a single frame image of the perforation flame or at least one frame image from continuous video images: identifying the flame image, measuring the height H1, waist diameter D1, body curve F1, brightness B1, and laser pulse duty cycle T1 of the flame, and establishing a model X1 of the flame according to the obtained characteristic data X (H1, D1, F1, B1, T1);

[0078] The modeling of the cigarette end face model includes taking a single frame image of the cigarette end face image or at least one frame image from continuous video images: identifying the cigarette end face image, measuring the diameter d and the center of the circumference of the cigarette, and establishing an end face model Y1 of the cigarette.

[0079] Other characteristic regions or display parameters that can reflect the operating state of the laser perforation device are established to establish corresponding data models Z1.

[0080] The flame model X1 is projected to the actual flame, the actual cigarette end face, the characteristic region, the characteristic device, and the display parameter in the display interface in the form of an outline or characteristic parameters to enhance the display effect of the augmented reality perforation flame, cigarette end face, characteristic region, and parameter.

[0081] Data comparison:

[0082] Comparison of flame model data:

[0083] The flame model X1 is compared with historical data X0 including height H0, waist diameter D0, body curve F0, brightness B0, and laser pulse duty cycle T0 in the cloud server or data server, and the absolute deviation value AX1 = (X1-X0) including (H1-H0), (D1-D0), (B1-B0), (F1-F0), and (T1-T0) and the relative deviation value AX1% = (X1-X0) / X0 including (H1-H0) / H0, (D1-D0) / D0, (B1-B0) / B0, (F1-F0) / F0, and (T1-T0) / T0 are calculated to obtain data set 1.

[0084] Or the continuous video image in each frame image Xi, respectively, with the historical data X0 in the cloud server or data server, including height H0, waist diameter D0, body curve F0, brightness B0, laser pulse duty cycle T0, etc. Comparison, calculate the absolute deviation value △Xi= (Xi-X0) including (Hi-H0), (Di-D0), (Bi-B0), (Fi-F0), (Ti-T0) and relative deviation value △Xi%= (Xi-X0) / X0 including (Hi-H0) / H0, (Di-D0) / D0, (Bi-B0) / B0, (Fi-F0) / F0, (Ti-T0) / T0 Obtain data set 2.

[0085] Or the continuous video image in each frame image Xi, respectively, with the established flame model X1, the feature data comparison, calculate the absolute deviation value △Xi= (Hi-H1), (Di-D1), (Bi-B1), (Fi-F1) and relative deviation value △Xi%= (Xi-X1) / X1, obtain data set 3.

[0086] Cigarette end face model data comparison:

[0087] The continuous video image in each frame image Yi, respectively, with the established cigarette model Y1, the feature data comparison, calculate the cigarette position relative to Y1 fluctuation or swing distance L, take its maximum value MAX-Li, obtain data set 4.

[0088] ③Model contour line color setting and display interface information display box setting:

[0089] Laser and light path efficiency warning information display box:

[0090] When the relative deviation of laser pulse duty cycle T is less than 5%:

[0091] According to the comparison data set 1, data set 2, especially the relative deviation value △Xi% of other data in data set 2 is more than 5%-8%, preferably 6%, that is, it can be determined that the energy of the laser and the efficiency of the light path have decreased, and the information box is flickered and the data is displayed;

[0092] When the relative deviation value △Xi% of other data in data set 1, data set 2, especially data set 2 is less than 5%-8%, preferably 6%, and the relative deviation of laser pulse duty cycle is greater than 5%, that is, it can be determined that the energy of the laser and the efficiency of the light path have decreased, and the information box is flickered and the data is displayed;

[0093] Maintenance warning display box:

[0094] Compared with data group 3, if the relative deviation value in any one of the data groups is less than 5%-8%, preferably 6%, i.e. the contour line of the flame model is set to white, and the display frame displays the information that the equipment maintenance state is good;

[0095] Compared with data group 3, if the relative deviation value in one of the data groups exceeds 5%-8%, preferably 6%, i.e. the contour line of the flame model is set to yellow, and the display frame displays the yellow pre-warning that the equipment needs cleaning and maintenance;

[0096] Compared with data group 3, if the same relative deviation value in two or more of the data groups exceeds 5%-8%, preferably 6%, i.e. the contour line of the flame model is set to orange, and the display frame displays the orange pre-warning that the equipment needs cleaning and maintenance, and the light path needs cleaning;

[0097] Compared with data group 3, if the same two relative deviation values in two or more of the data groups exceed 5%-8%, preferably 6%, i.e. the contour line of the flame model is set to red, and the display frame displays the red pre-warning that the equipment needs cleaning and maintenance, the light path needs cleaning, and the focal length needs adjustment;

[0098] Compared with data group 4, if the fluctuation or swing distance L of Yi, taking the maximum value MAX-Li, is less than 0.3-1.2 mm, preferably 0.6-0.8 mm, i.e. the contour line of the cigarette end face model is set to white, and the display frame displays the information that the cigarette runs stably;

[0099] Compared with data group 4, if the fluctuation or swing distance L of Yi, taking the maximum value MAX-Li, is greater than 0.3-1.2 mm, preferably 0.6-0.8 mm, i.e. the contour line of the cigarette end face model is set to red, and the display frame displays the red pre-warning that the equipment needs cleaning and maintenance, and the cigarette position needs adjustment.

[0100] The foregoing description of specific exemplary embodiments of the application is presented for the purpose of illustration and description. It is not intended to be a limitation on the present application, as described in the specification. It will be apparent to one skilled in the art that various changes and modifications can be made to the specific embodiments described. It is intended that the scope of the application be defined by the appended claims and their equivalents.

Claims

1. A laser perforation equipment operation monitoring system, characterized in that: an image acquisition device for acquiring images of the undulating state of the cigarette end rotation and the flame generated by laser irradiation to the cigarette surface; an input unit for inputting the period, duty cycle or duration of the perforation pulse of the laser pulse of the current running laser perforation equipment; a transmission unit for transmitting the data of the input unit and the images acquired by the image acquisition device to a data processing system; a data processing system for processing the data of the input unit and the images obtained by the image acquisition device, including the data of the undulating operation of the cigarette end rotation, the data of the flame generated by the laser on the cigarette surface and the data of the pulse period, duty cycle or duration of the perforation pulse of the current equipment operation laser; the data processing system is located remotely from the equipment site, and contains a modeling unit for key image modeling of the acquired images, including flame shape, image display model of the cigarette end surface and column chart reflecting the performance status of the laser, and issuing relevant early warning information; a data comparison unit for comparing the absolute difference between each set of processed data and historical data, and the relative difference between each set of data; a display unit for displaying the model established by the above modeling, setting the contour of the model and / or the color of the model body according to the comparison results and the deviation size, covering the real flame and cigarette end surface in the display with the display model, and realizing enhanced warning effect through the superimposed model and displayed image; the image information obtained by the data processing system is operated as follows: S1: through the current laser pulse period, the flame data under the condition of duty cycle is transformed into the same laser pulse period, the data under the condition of duty cycle of the historical flame data by the metrical transformation unit, the metrical transformation, the establishment of the corresponding table of laser energy power and laser pulse period and duty cycle in the data processing system, the acquisition of the laser output power value P0 corresponding to the laser pulse period and duty cycle of the historical data through table lookup, the acquisition of the laser output power value Pi corresponding to the laser pulse period and duty cycle of each acquisition image through table lookup, the metrical coefficient Si= (Pi-P0) / P0, the metrical corrected flame data: X1=Si*X1, Xi=Si*Xi; S2 modeling: including a single frame image of perforation flame or at least one frame image intercepted from continuous video images, metrical perforation flame model after modeling: identifying the flame image, measuring the height H1, waist diameter D1, shape curve F1, brightness B1 and laser pulse duty cycle T1 of the flame, and establishing the model X1 of the flame according to the obtained characteristic data X (H1, D1, F1, B1, T1); projecting the model X1 of the flame in the form of contour line or whole to the actual flame, actual cigarette end surface, characteristic area, characteristic device and display parameter to enhance the display effect of the actual perforation flame, cigarette end surface, characteristic area and parameter; S3 data comparison: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Comparison of flame model data: compare the flame model X1 with the historical data X0 in the cloud server or data server in height H0, waist circumference diameter D0, body curve F0, brightness B0, laser pulse duty cycle T0, calculate the absolute deviation value ΔX1= (X1-X0) specifically (H1-H0), (D1-D0), (B1-B0), (F1-F0), (T1-T0) and the relative deviation value ΔX1%= (X1-X0) / X0 specifically (H1-H0) / H0, (D1-D0) / D0, (B1-B0) / B0, (F1-F0) / F0, (T1-T0) / T0 to obtain data set 1; Or compare each image Xi after the image reduction in the continuous video image with the historical data X0 in the data processing system, including height H0, waist circumference diameter D0, body curve F0, brightness B0, laser pulse duty cycle T0, calculate the absolute deviation value ΔXi= (Xi-X0) including (Hi-H0), (Di-D0), (Bi-B0), (Fi-F0), (Ti-T0) and the relative deviation value ΔXi%= (Xi-X0) / X0 including (Hi-H0) / H0, (Di-D0) / D0, (Bi-B0) / B0, (Fi-F0) / F0, (Ti-T0) / T0 to obtain data set 2; Or compare each image Xi after the image reduction in the continuous video image with the established flame model X1 in feature data, calculate the absolute deviation value ΔXi= (Hi-H1), (Di-D1), (Bi-B1), (Fi-F1) and the relative deviation value ΔXi%= (Xi-X1) / X1 to obtain data set 3; Comparison of cigarette end face model data: compare each image Yi in the continuous video image with the established cigarette model Y1 in feature data, calculate the fluctuation or swing distance L of the cigarette position relative to Y1, take the maximum value MAX-Li to obtain data set 4; The comparison further includes that when the same pulse timing, the relative deviation value ΔXi%= (Xi-X0) / X0 of the flame model data Xi and the historical data X0 is obtained, and the data set 5 is obtained corresponding to the cigarette end face model data Yi; S4: display box setting: including model contour line or model body color setting and display interface setting information display box setting: Cigarette position and maintenance early warning display box: when the relative deviation of the laser pulse duty cycle is less than 5%, the relative deviation value ΔXi% of more than one data in data set 1 or data set 2 exceeds 5%-8%, that is, it is determined that the cigarette position setting is inaccurate or the drum and the cigarette poking wheel need to be maintained, the corresponding information box is flickered and the data is displayed; or, when the relative deviation value ΔXi% of a certain data in data set 5 exceeds 5%-8% and the fluctuation or swing distance L of the cigarette Yi is greater than 0.3-1.2 mm, it can be determined that the cigarette poking wheel needs to be maintained, the corresponding information box is flickered and the data is displayed; The warning display frame of the laser and the light path performance: when the relative deviation of the laser pulse duty cycle is greater than 5%, the relative deviation value of other data in the data group 1 or the data group 2 is less than 5%-8%, that is, it can be determined that the performance of the laser energy and the light path has decreased, the corresponding information frame is flickered and the data is displayed; The warning display frame of the maintenance: comparing the data group 3, if the relative deviation value in any one group of data is less than 5%-8%, the contour line of the flame model is set to white, and the corresponding display frame displays the information that the equipment maintenance state is good; Comparing the data group 3, if the relative deviation value in one group of data exceeds 5%-8%, the contour line of the flame model is set to yellow, and the corresponding display frame displays the yellow warning that the equipment needs cleaning and maintenance; Comparing the data group 3, if the relative deviation value in two or more groups of data exceeds 5%-8% or exceeds 6%, the contour line of the flame model is set to orange, and the corresponding display frame displays the orange warning that the equipment needs cleaning and maintenance and the light path needs cleaning; Comparing the data group 4, if the fluctuation or swing distance L of Yi is less than 0.3-1.2 mm, the maximum value MAX-Li is taken, the contour line of the cigarette end surface model is set to white, and the corresponding display frame displays the information that the cigarette runs stably; Comparing the data group 4, if the fluctuation or swing distance L of Yi is greater than 0.3-1.2 mm, the maximum value MAX-Li is taken, the contour line of the cigarette end surface model is set to red, and the corresponding display frame displays the red warning that the equipment needs cleaning and maintenance and the cigarette position needs adjustment.

2. The laser perforating apparatus operation monitoring system of claim 1, wherein: The image acquisition device is a movable camera attached to a mobile terminal or a wearable device or a camera fixed on the scene, which respectively acquires the flame generated by the laser on the surface of the cigarette and the image of the rotating fluctuation of the cigarette end. The acquisition sensor a and the acquisition sensor b acquire the flame and the cigarette end image respectively under the coordination of the synchronous timing pulse, and store the corresponding data according to the timing of the synchronous pulse. The camera fixed on the scene acquires the flame and the cigarette end image respectively under the coordination of the synchronous timing pulse, and stores the corresponding data according to the timing of the synchronous pulse. The movable camera attached to the mobile terminal or the wearable device must be selected at a suitable angle, and the perforation flame and the cigarette end image are shot at the same time.

3. The laser perforating apparatus operation monitoring system of claim 1, wherein: The image acquisition device is one or more.

4. The laser perforating apparatus operation monitoring system of claim 1, wherein: The data processing system further comprises a data reduction processing unit, which converts the flame data in the current laser pulse period, duty cycle or perforation pulse length into data in the same laser pulse period and duty cycle as the historical flame data through the reduction processing unit.

5. The laser perforating apparatus operation monitoring system of claim 1, wherein: The modeling step comprises the following steps: a single frame image of the cigarette end surface image or at least one frame image selected from continuous video images is used to establish the cigarette end surface model; the diameter d and the center of the circumference of the cigarette end surface image are measured to establish the cigarette end surface model Y1.

6. The laser perforating apparatus operation monitoring system of claim 1, wherein: The modeling step comprises the following steps: other characteristic areas or display parameters capable of reflecting the operating state of the laser perforating device are established into corresponding data models Z1.

7. The laser perforating apparatus operation monitoring system of claim 1, wherein: When the relative deviation of the laser pulse duty cycle is less than 5%, if the relative deviation value of other data in the comparison data group 1 or data group 2 exceeds 6%, it is determined that the cigarette position setting is inaccurate or the drum or cigarette poking wheel needs maintenance, and the corresponding information box is flickered and data is displayed; When the relative deviation of the laser pulse duty cycle is greater than 5%, and the relative deviation value of other data in the data group 1 or data group 2 is less than 6%, it is determined that the laser energy and the efficiency of the optical path have decreased, and the corresponding information box is flickered and data is displayed; Maintenance early warning display box: Comparing data group 3, if the relative deviation value in any one of the data groups is less than 6%, the contour line of the flame model is set to white, and the display box displays the information that the device is in good maintenance state; Comparing data group 3, if the relative deviation value in one of the data groups exceeds 6%, the contour line of the flame model is set to yellow, and the display box displays the yellow warning that the device needs cleaning and maintenance; Comparing data group 3, if the same relative deviation value in two or more data groups exceeds 6%, the contour line of the flame model is set to orange, and the display box displays the orange warning that the device needs cleaning and maintenance and the optical path needs cleaning; Comparing data group 3, if the same two relative deviation values in two or more data groups exceed 6%, the contour line of the flame model is set to red, and the display box displays the red warning that the device needs cleaning and maintenance, the optical path needs cleaning, and the focal length needs adjustment; Comparing data group 4, if the fluctuation or swing distance L of Yi is less than 0.6-0.8 mm, the maximum value MAX-Li is set to white, and the display box displays the information that the cigarette running is stable; Comparing data group 4, if the fluctuation or swing distance L of Yi is greater than 0.6-0.8 mm, the maximum value MAX-Li is set to red, and the display box displays the red warning that the device needs cleaning and maintenance and the cigarette position needs adjustment.

8. The laser perforating apparatus operation monitoring system of claim 1, wherein: The display unit can be a display device set near the device site, a display device of a mobile terminal or a wearable device, or a remote display device.

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