Equipment cooperative control method and device applied to rolling and packaging production line
By monitoring and dynamically adjusting the speed of the cigarette rolling production line equipment in real time, the problems of cigarette waste and inefficiency caused by equipment failure and downtime have been solved. This has enabled the production line to operate smoothly and optimize resources, extended equipment life, and reduced energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-03-10
AI Technical Summary
The waste of cigarettes and low production efficiency caused by equipment failure and downtime in the cigarette packaging production line cannot be avoided or the waste of rejection during the start-up phase can be reduced due to the lack of effective equipment coordination and control measures.
By monitoring the operating parameters of cigarette making machines, packaging machines, and storage and conveying devices in real time, and dynamically adjusting the equipment speed, the production line can be ensured to operate smoothly during downtime, avoiding overfilling or idling of the storage tank, reducing prolonged operation of equipment at high speeds or sudden stops and starts, and achieving coordinated control of the equipment.
It improves the operating efficiency of the production line and the lifespan of equipment, reduces cigarette waste, lowers energy consumption, ensures the continuity and stability of production, and conforms to the concept of green manufacturing.
Smart Images
Figure CN121635159A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of tobacco machinery, in particular to a device cooperative control method and device applied to a cigarette making line. BACKGROUND
[0002] The key devices of the cigarette making line are composed of a cigarette making machine, a storage conveying device and a packaging machine. In the process of cigarette production, the cigarette making machine and the packaging machine inevitably stop during operation. Each time the device is started again after stopping, it will produce a rejection in the starting stage, which not only causes waste of cigarettes, but also reduces production efficiency.
[0003] In actual cigarette production, there are a large number of "small stoppages" caused by not meeting certain conditions. The processing time of this kind of stoppage is usually short, and the operator can generally solve it in a short time. However, at present, there is a lack of effective device cooperative control means, which cannot control the running speed of upstream and downstream devices when the device has a short fault stoppage, so as to avoid production interruption, reduce rejection waste in the starting stage, and ensure the effectiveness and continuity of production.
[0004] For example, when the cigarette making machine stops, if the packaging machine still runs at the original speed, the storage of the storage conveying device may rapidly decrease until the packaging machine is forced to stop when the storage is empty. When the cigarette making machine resumes operation, the storage starts to fill cigarettes, and when a certain storage amount is reached, the packaging machine resumes starting, and a certain number of single cigarette rejections will occur in the starting stage, causing waste; on the contrary, when the packaging machine stops, if the cigarette making machine continues to produce at high speed, when the storage is full of cigarettes, the cigarette making machine is forced to stop, causing production interruption, and the same rejection waste will occur when it starts again.
[0005] In order to solve the above problems, people have been seeking an ideal technical solution. SUMMARY
[0006] Therefore, it is necessary to provide a device cooperative control method applied to a cigarette making line to solve the above technical problems. The current storage of the cigarette storage conveying device is automatically adjusted to adjust the speed of upstream and downstream devices, realize cooperative control of the production line devices, prevent or reduce production interruption, improve the running efficiency of the cigarette making line, and reduce the rejection waste after the production device stops and starts.
[0007] In order to achieve the above purpose, the first aspect of the present application provides a device cooperative control method applied to a cigarette making line, comprising the following steps: In the running process of the cigarette packaging production line equipment, the running parameters of the cigarette machine, the packaging machine and the cigarette storage and conveying device are acquired in real time, the running parameters including the stop and start signals of the cigarette machine and the packaging machine and the current speed and the current storage capacity of the storage of the cigarette storage and conveying device; When the cigarette machine stops, the emptying time required for emptying the current storage capacity of the cigarette storage and conveying device at the current speed of the packaging machine is calculated according to the current storage capacity of the cigarette storage and conveying device and the current speed of the packaging machine, and the speed of the packaging machine is adjusted according to the relationship between the emptying time and the fault repair time of the cigarette machine. When the packaging machine stops, the current remaining capacity of the cigarette storage and conveying device and the current speed of the cigarette machine are acquired, the filling time required for filling the current remaining capacity of the storage of the cigarette storage and conveying device at the current speed of the cigarette machine is calculated, and the speed of the cigarette machine is adjusted according to the relationship between the filling time and the fault repair time of the packaging machine.
[0008] In the running process of the cigarette packaging production line equipment, the running parameters of the cigarette machine, the packaging machine and the cigarette storage and conveying device are acquired in real time, and the speed of the equipment is dynamically adjusted based on the stop event, so that the speed optimization can be realized without manual intervention, the operation complexity is reduced, the response speed to the fault is improved, the overall efficiency and reliability of the cigarette packaging production line are improved, resource optimization and cost saving are realized, and it is suitable for modern intelligent manufacturing environment.
[0009] Specifically, when one device stops, the speed of another device is adjusted to ensure that the production line can still operate partially during fault repair, reducing the overall downtime. The cigarette storage and conveying device serves as a key buffer, and dynamic monitoring and speed adjustment of its storage capacity help maintain the storage within a reasonable range, preventing the storage from being overfilled (which may cause blockage) or empty (which may cause downstream equipment to run out of material), thereby ensuring smooth and continuous production flow.
[0010] By accurately calculating the emptying time or filling time and comparing it with the fault repair time, product accumulation or shortage caused by speed mismatch is avoided, and waste of defective products and materials is reduced. For example, when the cigarette machine fault repair time is long, reducing the speed of the packaging machine can prevent the storage from being emptied too early and avoid wasting energy due to the idling of the packaging machine.
[0011] By avoiding long-time high-speed operation or sudden stop and start of the equipment, mechanical wear and thermal stress are reduced, thereby prolonging the service life of the cigarette machine, the packaging machine and the conveying device. At the same time, stable speed adjustment also helps to reduce the failure rate.
[0012] In the device stop event, by adjusting the speed to the optimal level, unnecessary high-speed operation is avoided, thereby saving electric energy consumption, which meets the green manufacturing concept.
[0013] Further, the speed of the packing machine is adjusted according to the relationship between the emptying time and the cigarette machine fault repair time, including: If the emptying time > cigarette machine fault repair time, the packing machine is kept running at the current speed; If the emptying time ≤ cigarette machine fault repair time, the speed value of the packing machine kept running is calculated according to the cigarette machine fault repair time and the current storage of the cigarette storage and conveying device reservoir, if the speed value ≥ the minimum running allowed speed of the packing machine, the speed value and the minimum running allowed speed of the packing machine are averaged to control the packing machine to run at the obtained average speed; if the speed value < the minimum running allowed speed of the packing machine, the packing machine is run at the minimum allowed speed.
[0014] The above scheme realizes intelligent, smooth and efficient running of the production line during the fault period through more refined decision logic. When the cigarette machine is stopped, the system does not simply maintain or stop the packing machine, but dynamically responds according to the accurate comparison of the emptying time and the fault repair time. If the emptying time is longer, it means that the inventory is sufficient, and maintaining the current speed can ensure uninterrupted production; on the contrary, if the repair time is longer, the packing machine speed is actively reduced. This speed adjustment is not blindly reduced to the minimum, but a target speed value is calculated scientifically, and the average value of the target speed value and the minimum speed allowed by the equipment is taken as the final execution speed. This averaging operation avoids the impact on production rhythm and equipment stability caused by sudden speed reduction or direct reduction to the minimum speed of the packing machine, and also ensures that the materials in the reservoir can be effectively stretched, thereby maximizing the continuous running time of the packing machine during the repair period of the cigarette machine and greatly reducing the risk of full-line shutdown.
[0015] Further, when the cigarette machine is restarted after being stopped according to the running parameters, the speed of the packing machine is maintained until the inventory of the cigarette storage and conveying device reaches 50%, and then the speed of the packing machine is restored to the speed before the cigarette machine is stopped.
[0016] The delay recovery is realized by setting a recovery threshold of 50% of the inventory, and this delay recovery strategy provides a valuable buffer period for the system, which allows the key buffer zone of the cigarette storage and conveying device to recover to a safe and stable intermediate inventory level, thereby effectively avoiding the rapid emptying of the buffer zone again or subsequent production fluctuations caused by the instant speed-up of the packing machine and the unstable start of the cigarette machine. The whole control process forms a smooth, self-adaptive and highly resilient closed loop from fault handling to recovery, which not only maximizes the use of production capacity during the fault period, but also significantly improves the equipment life and the stability and continuity of the whole production system.
[0017] Further, the speed of the packing machine is adjusted according to the relationship between the emptying time and the cigarette machine fault repair time, including: If the filling time > the packaging machine repair time, keep the cigarette machine running at the current speed; If the filling time ≤ the packaging machine repair time, calculate the speed value of the cigarette machine running according to the packaging machine repair time and the current remaining capacity of the cigarette storage conveyor device reservoir, if the speed value ≥ the minimum allowed speed of the cigarette machine, take the average of the speed value and the minimum allowed speed of the cigarette machine, control the cigarette machine to run at the obtained average speed; if the speed value < the minimum allowed speed of the cigarette machine, control the cigarette machine to run at its minimum allowed speed.
[0018] In the above scheme, instead of simply stopping or blindly reducing the speed, a dynamic trade-off is made according to the real-time remaining capacity of the storage device and the estimated repair time of the packaging machine. When the calculated filling time is shorter than the repair time, the speed of the cigarette machine is actively reduced by an algorithm - this algorithm not only calculates the theoretical speed according to the repair time and the remaining capacity, but also introduces the wisdom of taking the average of the minimum allowed speed of the device. This averaging operation effectively avoids the production fluctuation and mechanical impact caused by the direct cliff-like drop of the cigarette machine speed to the minimum value, and under the premise of ensuring that the reservoir is not filled too quickly to block, the cigarette machine is maintained at a reasonable and stable low-speed running state as much as possible, thereby maximizing the partial production capacity and avoiding the loss of complete shutdown.
[0019] Further, when the cigarette machine is stopped, when the packaging machine is restarted after being determined to be stopped according to the running parameters, the speed of the cigarette machine is maintained until the storage capacity of the cigarette storage conveyor device reaches 50%, and then the speed of the cigarette machine is restored to the speed before the cigarette machine is stopped.
[0020] Further, when the packaging machine is repaired and restarted, the system does not immediately instruct the cigarette machine to restore the high speed, but sets a key node that the storage capacity is restored to 50%. This delayed recovery mechanism gives the production line a buffer period, which ensures a stable and reliable material supply for the packaging machine in the early stage of restart, and avoids the possibility of congestion or device stress changes caused by the sudden speed increase of the cigarette machine when the system is not completely stable.
[0021] The entire control process from fault occurrence, intelligent speed reduction to smooth recovery forms a highly adaptive flexible closed loop that can effectively absorb and resolve fault impact, not only protecting the equipment and reducing material waste during the fault period, but also ensuring the continuity of the production process and the optimization of production efficiency as a whole.
[0022] The second aspect of the present application provides a device cooperative control device applied to a cigarette package production line, comprising a cigarette making machine, a packaging machine and a cigarette storage conveying device, further comprising a line-level TIMS system, wherein the line-level TIMS system executes the device cooperative control method applied to the cigarette package production line according to the first aspect.
[0023] The present application has the following advantages: by monitoring the running state of the device and the storage capacity of the storage in real time, and automatically adjusting the speed of the upstream and downstream devices according to the fault repair time, the number of discarded cigarettes during the start-up stage of the cigarette making machine and the packaging machine is effectively reduced, the running efficiency of the device is improved, and the production cost is reduced. Compared with the traditional control method, the present application realizes the cooperative control of the production line device, solves the frequent "small stop" of the production line, tries to achieve "stop without stopping production" and reduce the start-up rejection waste, improves the running efficiency of the device, and ensures the continuity and stability of production. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is the logic diagram of the cooperative control of the cigarette package production line in the present application.
[0025] Figure 2 is the design diagram of the TIMS cooperative control interface of the cigarette package production line in the present application. DETAILED DESCRIPTION
[0026] The technical solutions of the present application will be further described in detail through specific embodiments.
[0027] Example 1 The present embodiment provides a device cooperative control method applied to a cigarette package production line, as shown in Figure 1 The method comprises the following steps: During the running of the production line device, the running parameters of the cigarette making machine, the packaging machine and the cigarette storage conveying device are acquired in real time, wherein the running parameters include the stop and start signals of the cigarette making machine and the packaging machine, the current speed of the cigarette making machine and the packaging machine, and the current storage capacity of the storage of the cigarette storage conveying device.
[0028] Specifically, the minimum allowable speed of each of the cigarette making machine and the packaging machine, the fault repair time of the cigarette making machine, the fault repair time of the packaging machine, and the corresponding storage capacity required for the speed reduction of the cigarette making machine and the packaging machine are determined in advance.
[0029] When it is determined according to the running parameters that the cigarette making machine is stopped, the emptying time required for emptying the current storage capacity of the cigarette storage conveying device at the current speed of the packaging machine is calculated according to the current storage capacity of the storage of the cigarette storage conveying device and the current speed of the packaging machine, and the speed of the packaging machine is adjusted according to the relationship between the emptying time and the fault repair time of the cigarette making machine.
[0030] Specifically, after receiving the shutdown signal of the cigarette making machine, obtain the current storage capacity S of the storage device of the cigarette storage and conveying device and the current speed V0 of the packaging machine. It should be noted that here both the storage capacity S and the speed V0 are statistically obtained based on the number of cigarettes; calculate the time T1 = S / V0 required to empty the current storage capacity S of the cigarette storage and conveying device at the current speed V0 of the packaging machine.
[0031] Compare T1 with the fault repair time T of the cigarette making machine; If T1 > T, it indicates that the current storage capacity of the cigarette storage and conveying device is sufficient to support until the end of the fault handling of the cigarette making machine. Therefore, keep the packaging machine running at the current speed; If T1 ≤ T, it indicates that the current storage capacity of the cigarette storage and conveying device cannot support until the end of the fault handling of the cigarette making machine. Therefore, according to the fault repair time of the cigarette making machine and the current storage capacity of the storage device of the cigarette storage and conveying device, calculate the ideal operating speed value V of the packaging machine = S / T; Further compare the ideal operating speed with the minimum allowable operating speed of the packaging machine; If V1 ≥ Vmin, then average the ideal operating speed and the minimum allowable operating speed of the packaging machine V1 = (Vmin + V) / 2, and take V1 as the speed optimization value of the packaging machine. Write the speed optimization value into the control system of the packaging machine through the production line TIMS system to control the packaging machine to run according to the speed optimization value; If V1 < Vmin, then take the minimum allowable operating speed of the packaging machine as the speed optimization value of the packaging machine, that is, V1 = Vmin. Write the speed optimization value into the control system of the packaging machine through the packaging level TIMS system to control the packaging machine to run according to the speed optimization value.
[0032] When receiving the startup signal of the cigarette making machine again, continue to keep the packaging machine running at the current speed, and at the same time judge whether the storage capacity of the cigarette storage and conveying device reaches 50%. If it reaches 50%, then restore the speed of the packaging machine to the speed before the shutdown of the cigarette making machine.
[0033] Specifically, after receiving the shutdown signal of the packaging machine, obtain the current remaining capacity S of the storage device of the cigarette storage and conveying device and the current speed V0 of the cigarette making machine. Similarly, here both the remaining capacity S and the speed V0 are statistically obtained based on the number of cigarettes; calculate the time T1 = S / V0 required to fill the remaining capacity S of the cigarette storage and conveying device at the current speed V0 of the cigarette making machine; Compare the filling time T1 with the fault repair time T of the packaging machine; If the filling time T1 > the fault repair time T of the packaging machine, it indicates that the remaining capacity of the storage device of the cigarette storage and conveying device is sufficient to support until the end of the fault handling of the packaging machine, and the cigarette making machine keeps running at the current speed; If the filling time T1 ≤ the packaging machine failure repair time T, calculate the cigarette machine's operating speed V = S / T based on the packaging machine failure repair time and the current remaining capacity of the cigarette storage and conveying device's storage. The ideal operating speed V is further compared with the minimum allowable operating speed Vmin of the packaging machine; If the speed value V is greater than or equal to the minimum allowable operating speed Vmin of the cigarette machine, then the average of the speed value V and the minimum allowable operating speed Vmin of the cigarette machine is taken as V1 = (Vmin + V) / 2, and V1 is used as the speed optimization value of the cigarette machine. The speed optimization value is written into the cigarette machine control system through the cigarette machine TIMS system so as to control the cigarette machine to run according to the speed optimization value. If the speed value V < the minimum allowable operating speed Vmin of the cigarette machine, then the minimum allowable operating speed of the cigarette machine is taken as the speed optimization value of the cigarette machine, that is, V1 = Vmin. The speed optimization value is written into the cigarette machine control system through the production line TIMS system so as to control the cigarette machine to run according to the speed optimization value.
[0034] When the packaging machine starts again, the cigarette machine continues to run at the current speed. At the same time, it checks whether the storage capacity of the cigarette storage and conveying device has reached 50%. If it has reached 50%, the speed of the cigarette machine is restored to the speed before the packaging machine stopped.
[0035] like Figure 2 As shown, a collaborative control micro-application is deployed in the TIMS system of the cigarette and packaging production line to ensure the normal operation of the data communication and acquisition module, fault monitoring module, and speed calculation and control module. Based on actual production needs, parameters such as fault handling time, minimum speed of the cigarette and packaging machines, and storage capacity when requesting speed reduction are reasonably set. For example, the storage capacity of the storage conveyor device requesting a speed reduction of the cigarette machine is set to 90%, and the storage capacity requesting a speed reduction of the packaging machine is set to 10%.
[0036] If opened during the production process Figure 2 The "Production Line Collaborative Control" button indicates that the data communication and acquisition module continuously collects equipment operating parameters and transmits the data to the fault monitoring module and the speed calculation and control module. When the fault monitoring module detects that the cigarette machine has stopped, the speed calculation and control module obtains relevant parameters for calculation.
[0037] Assuming the cigarette machine's fault repair time is 3 minutes, if the current storage capacity of the storage and conveying device is 50,000 cigarettes and the current packaging machine speed is 10,000 cigarettes per minute, emptying the storage device would take 5 minutes, which is longer than the cigarette machine's downtime. Therefore, the packaging machine speed does not need adjustment and can remain normal. However, if the current storage capacity of the storage and conveying device is 20,000 cigarettes and the current packaging machine speed is 10,000 cigarettes per minute, emptying the storage device would take 2 minutes, which is shorter than the cigarette machine's downtime. Therefore, to ensure stable production, the packaging machine speed needs to be reduced. The minimum allowable operating speed is 6,000 cigarettes per minute. Taking the average, the recommended operating speed for the packaging machine is 8,000 cigarettes per minute. The speed calculation and control module sends the recommended speed value to the packaging machine's TIMS system through the production line-level TIMS system's collaborative control micro-application, ensuring the packaging machine operates at the recommended speed. Similarly, when the fault monitoring module detects a packaging machine stoppage, the speed calculation and control module calculates the recommended speed value for the cigarette machine according to the corresponding logic and implements control accordingly.
[0038] Regularly inspect and maintain the collaborative control system to ensure that all modules operate normally, data acquisition is accurate, and communication is stable. Adjust relevant parameters and optimize speed calculation logic as needed based on actual production conditions and equipment operating status to further improve the collaborative control effect.
[0039] It should be understood that although the steps in the flowcharts of the examples above are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order constraint on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the examples above may include multiple steps or stages, which are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.
[0040] Example 2 Based on the same inventive concept, this application also provides an equipment collaborative control device for a cigarette production line, including a cigarette rolling machine, a packaging machine and a cigarette storage and conveying device, and also includes a production line-level TIMS system, wherein the production line-level TIMS system executes the equipment collaborative control method for a cigarette production line described in Example 1.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.
Claims
1. A method for cooperative control of devices applied to a cigarette making line, characterized in that, The method comprises the following steps: During the operation of the cigarette production line equipment, the operating parameters of the cigarette machine, the packaging machine and the cigarette storage and conveying device are acquired in real time, the operating parameters including the stop and start signals of the cigarette machine and the packaging machine and the current speed and the current storage capacity of the storage of the cigarette storage and conveying device; When the cigarette machine stops, the current storage capacity of the storage of the cigarette storage and conveying device and the current speed of the packaging machine are used to calculate the emptying time required for emptying the current storage capacity of the storage of the cigarette storage and conveying device at the current speed of the packaging machine, and the speed of the packaging machine is adjusted according to the relationship between the emptying time and the fault repair time of the cigarette machine; When the packaging machine stops, the current remaining capacity of the storage of the cigarette storage and conveying device and the current speed of the cigarette machine are acquired, the filling time required for filling the current remaining capacity of the storage of the cigarette storage and conveying device at the current speed of the cigarette machine is calculated, and the speed of the cigarette machine is adjusted according to the relationship between the filling time and the fault repair time of the packaging machine.
2. The method for cooperative control of devices applied to a cigarette making line according to claim 1, characterized in that: The adjustment of the speed of the packaging machine according to the relationship between the emptying time and the fault repair time of the cigarette machine comprises: If the emptying time is greater than the fault repair time of the cigarette machine, the packaging machine is kept running at the current speed; If the emptying time is less than or equal to the fault repair time of the cigarette machine, the speed value at which the packaging machine is kept running is calculated according to the fault repair time of the cigarette machine and the current storage capacity of the storage of the cigarette storage and conveying device, if the speed value is greater than or equal to the minimum allowable running speed of the packaging machine, the speed value and the minimum allowable running speed of the packaging machine are averaged to control the packaging machine to run at the obtained average speed, and if the speed value is less than the minimum allowable running speed of the packaging machine, the packaging machine is kept running at the minimum allowable speed.
3. The method for cooperative control of devices applied to a cigarette making line according to claim 1 or 2, characterized in that: When the cigarette machine stops and is restarted, the speed of the packaging machine is kept until the storage capacity of the cigarette storage and conveying device reaches 50%, and then the speed of the packaging machine is restored to the speed before the cigarette machine stops.
4. The method for cooperative control of devices applied to a cigarette making line according to claim 1, characterized in that: The adjustment of the speed of the cigarette machine according to the relationship between the filling time and the fault repair time of the packaging machine comprises: If the filling time is greater than the fault repair time of the packaging machine, the cigarette machine is kept running at the current speed; If the filling time is less than or equal to the fault repair time of the packaging machine, the speed value at which the cigarette machine is kept running is calculated according to the fault repair time of the packaging machine and the current remaining capacity of the storage of the cigarette storage and conveying device, if the speed value is greater than or equal to the minimum allowable running speed of the cigarette machine, the speed value and the minimum allowable running speed of the cigarette machine are averaged to control the cigarette machine to run at the obtained average speed, and if the speed value is less than the minimum allowable running speed of the cigarette machine, the cigarette machine is kept running at the minimum allowable speed.
5. The method for cooperative control of devices applied to a cigarette making line according to claim 4, characterized in that: When the cigarette machine stops and is restarted, the speed of the cigarette machine is kept until the storage capacity of the cigarette storage and conveying device reaches 50%, and then the speed of the cigarette machine is restored to the speed before the cigarette machine stops.
6. The device cooperative control method applied to a cigarette production line according to claim 2 or 4, characterized in that: When the cigarette machine or the packaging machine stops, the multi-modal data of the current fault are collected in real time, features are extracted, and then input into the trained integrated learning prediction model to output the predicted value of the fault repair time as the fault repair time of the cigarette machine or the packaging machine. The training step of the ensemble learning prediction model is: Real-time acquisition and fusion of multi-modal data related to equipment failure to construct a fault data set; the multi-modal data includes: equipment fault code, fault type, equipment type, equipment model, running state time series data of the equipment within a preset time window before the fault, and maintenance work order; the running state time series data includes motor current, vibration signal, temperature, pressure, and speed fluctuation data; Preprocessing and feature extraction of multi-modal data: For the running state time series data, an automatic feature engineering tool is used to extract its time domain, frequency domain, and time-frequency domain features; For the maintenance work order, natural language processing techniques are used for keyword extraction, named entity recognition, and text vectorization to extract fault semantic features; Fuse all extracted features with equipment fault code, fault type, equipment type, and equipment model to form a multi-dimensional feature vector for model training; Based on the gradient boosting decision tree algorithm, an ensemble learning regression prediction model is constructed; the multi-dimensional feature vector obtained in the previous step is used as input, and the historical fault repair actual time length is used as output label to train and optimize the ensemble learning regression prediction model.
7. A device cooperative control apparatus applied to a cigarette making line, characterized in that: The system comprises a cigarette making machine, a packaging machine and a cigarette storage and conveying device, and further comprises a production line level TIMS system, wherein the production line level TIMS system performs the device collaborative control method applied to the cigarette making and packaging production line according to any one of claims 1-6.