A food packaging workshop production line efficiency management system

Abstract

The invention relates to the field of production line efficiency management, and provides a food packaging workshop production line efficiency management system, wherein a data acquisition module acquires historical environmental temperature and humidity data of the workshop production line and performance parameter data of packaging materials, a material analysis module establishes performance models of different packaging materials under various temperature and humidity combinations, and calculates the comprehensive weights between temperature, humidity and performance, a production initialization module configures the environmental parameters of the initial food packaging workshop production line according to the material analysis module, a quality tracing module traces the specific links where problems occur in food packaging, a comprehensive efficiency management module performs efficiency management including personnel and resources according to the analysis results of the material analysis module, and performs process efficiency management based on the tracing results of the quality tracing module; the invention improves production efficiency by determining the weights and rules of the influence of temperature and humidity on material performance, and carrying out personnel task allocation, resource management and environmental parameter adjustment according to the analysis results.

Description

Technical Field

[0001] The invention relates to the field of production line efficiency management, in particular to a food packaging workshop production line efficiency management system. Background Art

[0002] With the rapid development of the food industry, consumers' requirements for the quality and safety of food packaging are constantly increasing. In order to meet market demand and ensure the quality of food during storage and transportation, the production efficiency and quality control of food packaging workshops have become crucial. Among the many influencing factors, high temperature and high humidity environment is a special and challenging working condition faced by many food packaging workshops. For example, in label pasting, whether it is a combination of paper labels and plastic packaging or plastic labels and plastic packaging, high temperature and high humidity may cause problems in label pasting; in terms of packaged food quality, high temperature is more likely to accelerate the deterioration of food and easily cause packaged food to be damaged; at the same time, the mechanical properties of packaging materials are also affected, thereby affecting the shelf life, flavor and packaging integrity of food and other aspects of packaging performance. These have prompted the exploration and development of production line efficiency management technology for this environment.

[0003] At present, some food packaging workshops have begun to adopt some basic technical means to deal with production environment management. For example, in terms of equipment management, some companies have installed basic equipment monitoring systems, which can simply record the operating status of the equipment, such as startup, shutdown, and operating time, so that when the equipment fails, historical operating data can be viewed to assist maintenance personnel in troubleshooting. In the quality control link, some companies have also introduced conventional sampling inspection processes, which roughly judge the quality of the entire batch of products by conducting quality inspections on the samples taken, and manually record and organize the inspection data for subsequent analysis of quality trends. In terms of production process connection, each process is arranged to be operated in sequence according to the established production plan and process flow chart, and there are relatively fixed methods of material transfer and information communication between each process.

[0004] However, the prior art still has the following deficiencies:

[0005] At present, when packaging problems occur in food packaging, a large amount of rework will be caused, thus affecting the efficiency of the workshop production line. Traditional sampling inspection and manual data recording are inefficient and inaccurate. Although the existing quality traceability can locate obvious problem links and machine failures, it cannot clearly analyze the environmental problems within the links. For example, the delayed impact of changes in temperature and humidity in the workshop on packaging. The sudden rise in humidity causes the packaging material to absorb moisture. There is no obvious change in the early stage, but after packaging is completed, the paper box continues to absorb moisture and becomes soft and deformed. For example, when the product is transferred to a high temperature environment, the packaging material will have gaps or the label will lift due to thermal expansion and contraction.

[0006] After checking that the machine is fault-free, it is difficult to quickly identify the dominant factors of temperature and humidity and their impact on material properties because there may be a nonlinear relationship between the packaging materials and the temperature and humidity. This leads to the inability to adjust the production process parameters and take remedial measures in a timely manner, causing the same quality problems to occur repeatedly, seriously hindering the efficient operation of the production process and exacerbating the company's production efficiency and quality risks. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a food packaging workshop production line efficiency management system, which collects historical temperature and humidity and packaging material performance data and analyzes and models to determine the weights and rules of the impact of temperature and humidity on material performance, and carries out personnel task allocation, resource management and environmental parameter adjustment based on the analysis results, so as to effectively improve production efficiency and reduce quality risks, so as to solve the problems in the prior art.

[0008] A food packaging workshop production line efficiency management system, comprising:

[0009] A data acquisition module, which includes a temperature sensor and a humidity sensor as well as a sensor for monitoring the performance of packaging materials, and is used to collect historical environmental temperature and humidity data of the food packaging workshop production line and performance parameter data of packaging materials at different production stages;

[0010] A material analysis module, which is data-connected to the data acquisition module and performs analysis based on the temperature and humidity data and material performance data collected by the data acquisition module, and includes a performance model unit and a weight calculation unit. The performance model unit is used to establish performance models of different packaging materials under various temperature and humidity combinations, and the weight calculation unit is used to calculate the comprehensive weight between temperature, humidity and performance;

[0011] A production initialization module, which is data-connected to the material analysis module and is used to configure the environmental parameters of the initial food packaging workshop production line according to the packaging material performance model established by the material analysis module;

[0012] A quality tracing module, which is distributed in every link of the food packaging production line and is used to trace the specific link where the problem occurs when there is a problem with the food packaging;

[0013] An integrated efficiency management module, which is data-connected with the quality tracing module and the material analysis module, manages the efficiency of personnel and resource utilization according to the analysis results of the material analysis module, and manages the process efficiency based on the tracing results of the quality tracing module;

[0014] The visualization module is connected to the comprehensive efficiency management module and is used to provide a visualization interface to display the analysis or calculation results of each module of the system.

[0015] Preferably, the performance model unit establishes the performance model of each material as follows:

[0016] Assume that the collected temperature and humidity data and material performance data sample set is ,in represents the sample set, Indicates A sample set, Indicates The temperature value of each sample, Indicates Sample humidity values, Indicates The material performance value corresponding to each sample is is the index of the sample;

[0017] First, the data is normalized to map the values ​​of temperature, humidity and material performance parameter sets to the interval [0,1]. , the normalized formula is:

[0018]

[0019] in, , ; n is the total number of samples, superscript It means normalized data; similarly, for humidity The normalized formula is:

[0020]

[0021] in, , ;

[0022] For material performance values The normalized formula is:

[0023]

[0024] in, , ;

[0025] After the data processing is completed, the sample set Based on temperature and humidity Perform clustering to establish a classification model; randomly initialize K cluster centers , j is the index of the cluster center data sample, and K cluster centers are K different combinations of temperature and humidity;

[0026] For each sample , calculate its distance to each cluster center The Euclidean distance d is:

[0027]

[0028] The sample Assign to the nearest cluster center Cluster formation ;

[0029] Recalculate the cluster center of each cluster using the formula:

[0030]

[0031]

[0032] in Representation Cluster The number of samples in ;

[0033] Repeat the above process: calculate the distance from the sample to the cluster center, assign clusters, and recalculate the cluster center of each cluster until the cluster center no longer changes, and then stop. The material performance classification model is established.

[0034] Preferably, the calculation process of the weight calculation unit is as follows:

[0035] For each cluster , calculate the mean of the material properties within the cluster :

[0036]

[0037] For each sample set in the cluster , calculate its similarity with other samples in the cluster based on temperature and humidity , using the cosine similarity formula:

[0038]

[0039] Among them, r is the cluster The index of other samples except i in ;

[0040] Calculate the weighted similarity of each sample The weight required for calculation is the difference between the corresponding sample and the mean of the material properties within the cluster. :

[0041]

[0042]

[0043] Calculate the weights of the effects of temperature and humidity on material properties within the cluster; represents the weight, and Represented as temperature and humidity in cluster The weight within

[0044]

[0045]

[0046] in and Cluster Mean internal temperature and humidity;

[0047] The comprehensive weight is determined according to the proportion of the number of samples in each cluster to the total number of samples. , calculate the comprehensive weight of the impact of temperature and humidity on material properties and :

[0048]

[0049]

[0050] Through the above similarity calculation principle, the comprehensive weights of the effects of temperature and humidity on material properties are determined, providing a basis for subsequent decision-making.

[0051] Preferably, the quality traceability module includes a traceability unit, a plurality of validation units and a monitoring and judgment unit;

[0052] The multiple validation units are respectively arranged at the handover stage between each link in the production line, and are used to validate the working conditions of the previous link based on relevant packaging specifications to confirm whether there is any problem with the food packaging;

[0053] The tracing unit performs tracing based on the validation results, takes the validation link where the validation unit is located as an index, locates the link where the packaging problem occurs, and determines the specific cause of the packaging problem, which includes equipment reasons, environmental reasons, and personnel reasons;

[0054] The monitoring and judging unit includes a temperature sensor and a humidity sensor and is connected to the production line equipment to obtain the equipment operation parameters. Based on the traceability result of the traceability unit, it is judged whether the cause of the packaging problem is the equipment problem by comparing whether the equipment parameters are normal. After the judgment result is that it is not an equipment failure problem, it is judged based on the material performance model established by the material analysis module whether the packaging material is affected by temperature or humidity to cause the packaging problem. If so, the judgment result is transmitted to the comprehensive efficiency management module.

[0055] Preferably, the comprehensive efficiency management module includes a work efficiency management unit, a resource efficiency management unit and a process efficiency management unit;

[0056] The work efficiency management unit receives the weights and performance model data of the temperature and humidity impact on the performance of the packaging material from the material analysis module and the real-time temperature and humidity monitoring data of the workshop from the monitoring and judgment unit;

[0057] Based on this, the temperature and humidity related packaging operation guidelines are updated in the relevant employee training tasks, and the work task allocation strategy for employees under different temperature and humidity conditions is generated according to the packaging process complexity and workload differences corresponding to the changes in packaging material performance caused by temperature and humidity changes;

[0058] The resource efficiency management unit uses the packaging material performance model of the material analysis module and the real-time data of the monitoring and judgment unit to set a dynamic inventory warning threshold in the packaging material storage link of the production line, and automatically generates a purchase suggestion order according to the material loss rate under different temperature and humidity conditions;

[0059] The process efficiency management unit calculates the temperature and humidity adjustment amount based on the judgment result of the monitoring and judgment unit, combined with the weight of the temperature and humidity on the performance of the packaging material and the performance model data of the material analysis module, and adjusts the environmental parameters by connecting relevant equipment according to the adjustment amount to ensure the packaging efficiency of the food packaging production line.

[0060] Preferably, the process efficiency management unit first restores the normalized data in the classification model using a restoration formula;

[0061] That is, there are K kinds of workshop temperature and humidity conditions in the classification model , and the corresponding packaging material performance ;

[0062] First, find a set of data closest to the current temperature and humidity conditions from the classification model, set as And the corresponding performance , e is the index of a set of data closest to the current temperature and humidity conditions, and at the same time, find a set of temperature and humidity data that achieves the best performance of the packaging material And the corresponding best performance ;

[0063] Calculate the performance difference: ;

[0064] Temperature difference: ;

[0065] Humidity difference: ;

[0066] From the weight calculation unit, we know that the weight of temperature on packaging material performance is: , the weight of humidity on packaging material performance is ;

[0067] From the classification model, we find that the humidity is fixed as In the case of And the corresponding performance values , a temperature-performance correlation matrix is ​​constructed to represent the correlation between them, where x is the temperature performance when the humidity is fixed. In the case of , the total number of temperature value samples is sorted out from the classification model;

[0068] Determine the target performance area: Based on the performance difference, find the area with the best performance in the temperature-performance correlation matrix The set of performance values ​​closest to the specified number, let this set be , the corresponding temperature value set is ; Where y is the index of the performance value in this set;

[0069] Evaluate the temperature adjustment of different paths: For each temperature value , calculated from the temperature arrive Adjustment amount: ; and temperature arrive Performance change: ;

[0070] At the same time, considering the "jump" of performance changes, calculate Reach target performance through intermediate temperature-performance combinations The cost is calculated using a custom function to measure;

[0071] Assume the function:

[0072]

[0073] Similarly, the temperature is fixed at Calculate all humidity adjustments under the condition of ;

[0074] Select the optimal adjustment path: compare the costs of different paths and choose and The adjustment amount corresponding to the smallest path in the calculation is taken as the adjustment amount.

[0075] Preferably, when the result of the determination is that the packaging problem is not caused by the packaging material being affected by temperature and humidity, the monitoring and determination unit transmits an alarm message to the visualization module, indicating that an error may have occurred in manual operation at this stage.

[0076] Preferably, when the process efficiency management unit adjusts environmental parameters by connecting relevant equipment, it gives priority to ensuring that the adjusted temperature and humidity are not at the temperature and humidity that the staff can adapt to. The relevant equipment includes but is not limited to air conditioners, humidifiers, dehumidifiers and ventilation equipment.

[0077] Preferably, the visualization module displays the analysis or calculation results of each module of the system including the performance model of the packaging material, the traceability results of the quality traceability module, the management content of the comprehensive efficiency management module, and the initialization-related parameters of the production initialization module.

[0078] Compared with the prior art, the present invention has the following beneficial effects:

[0079] 1. The present invention realizes accurate grasp of the performance change law of packaging materials through in-depth analysis of temperature, humidity and material performance data by the material analysis module, provides scientific data support for the entire system, helps the production initialization module to reasonably configure environmental parameters, and the quality traceability module accurately locates the problem links and causes, thereby effectively avoiding production decision-making errors caused by inaccurate data and unclear analysis, and improving the accuracy and stability of production line operation.

[0080] 2. The present invention implements personnel, resource and process management based on the material analysis results through the comprehensive efficiency management module, thereby realizing the comprehensive optimization and integration of production factors. By reasonably allocating employee tasks according to changes in temperature and humidity, dynamically managing inventory and intelligently adjusting environmental parameters, it reduces packaging problems and rework caused by temperature and humidity, improves the overall production efficiency of the packaging workshop production line, reduces the company's production and operation costs and quality risks, and ensures that production activities are carried out efficiently and orderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 It is a schematic diagram of the workflow of the present invention;

[0082] Figure 2 It is a schematic diagram of the material analysis module flow of the present invention;

[0083] Figure 3 It is a schematic diagram of the workflow of the comprehensive efficiency management module of the present invention;

[0084] Figure 4 It is a schematic diagram of the calculation process of the process efficiency management unit of the present invention. DETAILED DESCRIPTION

[0085] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0086] The present invention provides a food packaging workshop production line efficiency management system, comprising:

[0087] A data acquisition module, which includes a temperature sensor and a humidity sensor and sensors for monitoring the performance of packaging materials, including a strength sensor and an air permeability sensor, etc., for collecting historical environmental temperature and humidity data of the food packaging workshop production line and performance parameter data of packaging materials at different production stages. For example, some paper packaging materials or packaging materials coated with preservatives or functional coatings may be greatly affected by high temperatures. For example, very high humidity may affect the mechanical properties of paper packaging materials, such as strength and stiffness;

[0088] A material analysis module, which is data-connected to the data acquisition module and performs analysis based on the temperature and humidity data and material performance data collected by the data acquisition module, and includes a performance model unit and a weight calculation unit. The performance model unit is used to establish performance models of different packaging materials under various temperature and humidity combinations, and the weight calculation unit is used to calculate the comprehensive weight between temperature and humidity and performance;

[0089] A production initialization module, which is data-connected to the material analysis module and is used to configure the environmental parameters of the initial food packaging workshop production line according to the packaging material performance model established by the material analysis module;

[0090] A quality tracing module, which is distributed in every link of the food packaging production line and is used to trace the specific link where the problem occurs when there is a problem with the food packaging;

[0091] An integrated efficiency management module, which is data-connected with the quality tracing module and the material analysis module, manages the efficiency of personnel and resource utilization according to the analysis results of the material analysis module, and manages the process efficiency based on the tracing results of the quality tracing module;

[0092] The visualization module is connected to the comprehensive efficiency management module and is used to provide a visualization interface to display the analysis or calculation results of each module of the system.

[0093] Embodiment 1:

[0094] like Figure 1-3 As shown, in this embodiment, in a production workshop of a food packaging company, the data acquisition module continuously collects long-term workshop temperature and humidity data as well as performance parameter data of some paper packaging materials and some paper label materials.

[0095] After the material analysis module receives these data, the performance model unit establishes a performance model for each packaging material. The performance model establishment process is as follows:

[0096] Assume that the collected temperature and humidity data and material performance data sample set is ,in represents the sample set, Indicates A sample set, Indicates The temperature value of each sample, Indicates Sample humidity values, Indicates The material performance value corresponding to each sample is is the index of the sample;

[0097] First, the data is normalized to map the values ​​of temperature, humidity and material performance parameter sets to the interval [0,1]. , the normalized formula is:

[0098]

[0099] in, , ; n is the total number of samples, superscript It means normalized data; similarly, for humidity The normalized formula is:

[0100]

[0101] in, , ;

[0102] For material performance values The normalized formula is:

[0103]

[0104] in, , ;

[0105] After the data processing is completed, the sample set Based on temperature and humidity Perform clustering to establish a classification model; randomly initialize K cluster centers , j is the index of the cluster center data sample, and K cluster centers are K different combinations of temperature and humidity;

[0106] For each sample , calculate its distance to each cluster center The Euclidean distance d is:

[0107]

[0108] The sample Assign to the nearest cluster center Cluster formation ;

[0109] Recalculate the cluster center of each cluster using the formula:

[0110]

[0111]

[0112] in Representation Cluster The number of samples in ;

[0113] Repeat the above process: calculate the distance from the sample to the cluster center, assign clusters, and recalculate the cluster center of each cluster until the cluster center no longer changes, and then stop. The material performance classification model is established.

[0114] After the performance model is established, the weight calculation unit calculates the similarity and weighted similarity between the sample and other samples based on temperature and humidity to obtain the weight of the influence of temperature and humidity on material performance in the cluster. The calculation process is as follows:

[0115] For each cluster , calculate the mean of the material properties within the cluster :

[0116]

[0117] For each sample set in the cluster , calculate its similarity with other samples in the cluster based on temperature and humidity , using the cosine similarity formula:

[0118]

[0119] Among them, r is the cluster The index of other samples except i in ;

[0120] Calculate the weighted similarity of each sample The weight required for calculation is the difference between the corresponding sample and the mean of the material properties within the cluster. :

[0121]

[0122]

[0123] Calculate the weights of the effects of temperature and humidity on material properties within the cluster; represents the weight, and Represented as temperature and humidity in cluster The weight within

[0124]

[0125]

[0126] in and Cluster Mean internal temperature and humidity;

[0127] The comprehensive weight is determined according to the proportion of the number of samples in each cluster to the total number of samples. , calculate the comprehensive weight of the impact of temperature and humidity on material properties and :

[0128]

[0129]

[0130] Through the above similarity calculation principle, the comprehensive weights of the effects of temperature and humidity on material properties are determined, providing a basis for subsequent decision-making.

[0131] After calculating the comprehensive weights of the effects of temperature and humidity on material properties and the performance model of the packaging material, these weight data are transmitted to the comprehensive efficiency management module and the production initialization module.

[0132] When the production initialization module initializes the workshop environment parameters, it arranges appropriate initialization temperature and humidity parameters according to the performance models of different packaging materials.

[0133] The comprehensive efficiency management module includes work efficiency management unit and resource efficiency management unit;

[0134] The work efficiency management unit receives the weights and performance model data of the temperature and humidity impact on the performance of packaging materials from the material analysis module and the real-time temperature and humidity monitoring data of the workshop from the monitoring and judgment unit;

[0135] After receiving the relevant data, the work efficiency management unit carries out its work based on the real-time temperature and humidity monitoring data of the workshop, as well as the weights and performance model data of the impact of temperature and humidity on the performance of packaging materials.

[0136] For example, for production links where paper packaging materials are greatly affected by temperature and humidity, such as the folding process where high humidity may cause the paper to become soft and difficult to form, workers with skilled and experienced operating skills are assigned to take charge. The operating techniques are adjusted in a timely manner to reduce the defective rate caused by fluctuations in paper properties, thereby improving the operating efficiency of personnel in this link.

[0137] The resource efficiency management unit uses the packaging material performance model of the material analysis module and the real-time data of the monitoring and judgment unit to set dynamic inventory warning thresholds in the packaging material storage link of the production line, and automatically generates purchase recommendation orders based on the material loss rate under different temperature and humidity conditions;

[0138] For example, when the ambient humidity is high and the weight of humidity on paper strength performance is large, the model determines the safety stock level before the strength is reduced to affect the packaging quality, and sets the corresponding warning threshold. Once the inventory level approaches the threshold, a purchase suggestion order is automatically generated. The generation of the purchase suggestion order also comprehensively considers the expected loss of materials under different temperatures and humidities, ensuring that the purchase volume can meet production needs without causing inventory backlogs due to excessive purchases.

[0139] At the same time, the visualization module displays the analysis or calculation results of each module of the system, including the performance model of the packaging material, the traceability results of the quality traceability module, the management content of the comprehensive efficiency management module, and the initialization-related parameters of the production initialization module.

[0140] By generating a personnel allocation strategy, the packaging operations in each link are closely connected, and employees with different skills can give full play to their advantages, effectively shortening the overall time of packaging operations and increasing the packaging output per unit time. Resource efficiency management ensures that packaging materials are supplied in a timely manner and inventory costs are controllable, avoiding production line stagnation and waiting due to material shortages, and providing both human and material guarantees for the efficient and stable operation of the production line in the food packaging workshop, so that the production line can continue to operate at a set rhythm, significantly improving the smoothness and reliability of the production line operation, and effectively promoting the efficiency management of the workshop production line.

[0141] Embodiment 2:

[0142] like Figure 1-4 As shown, in this embodiment, during the production period of the food packaging workshop in the first embodiment, multiple validation units are respectively arranged at the handover stage between each link in the production line, and are used to validate the working conditions of the previous link based on the relevant packaging specifications to confirm whether there is any problem with the food packaging;

[0143] The traceability unit performs traceability based on the validation results, using the validation link where the validation unit is located as an index to locate the link where the packaging problem occurs, and determine the specific cause of the packaging problem, which includes equipment reasons, environmental reasons, and personnel reasons;

[0144] The monitoring and judgment unit includes a temperature sensor and a humidity sensor and is connected to the production line equipment to obtain the equipment operating parameters. Based on the traceability results of the traceability unit, it is judged whether the cause of the packaging problem is due to the equipment by comparing whether the equipment parameters are normal. After the judgment result is that it is not an equipment failure problem, it is judged based on the material performance model established by the material analysis module whether the packaging material is affected by temperature or humidity. If so, the judgment result is transmitted to the process efficiency management unit in the comprehensive efficiency management module.

[0145] The process efficiency management unit calculates the temperature and humidity adjustment amount based on the judgment results of the monitoring and judgment unit, combined with the weights of the temperature and humidity on the performance of the packaging materials and the performance model data of the material analysis module, and adjusts the environmental parameters by connecting related equipment according to the adjustment amount to ensure the packaging efficiency of the food packaging production line.

[0146] The process efficiency management unit first uses the restoration formula to restore the normalized data in the classification model;

[0147] From the material analysis module, we can see that there are K types of workshop temperature and humidity conditions in the classification model , and the corresponding packaging material performance ;

[0148] First, find a set of data closest to the current temperature and humidity conditions from the classification model, set as And the corresponding performance , e is the index of a set of data closest to the current temperature and humidity conditions, and at the same time, find a set of temperature and humidity data that achieves the best performance of the packaging material And the corresponding best performance ;

[0149] Calculate the performance difference: ;

[0150] Temperature difference: ;

[0151] Humidity difference: ;

[0152] From the weight calculation unit, we know that the weight of temperature on packaging material performance is: , the weight of humidity on packaging material performance is ;

[0153] From the classification model, we find that the humidity is fixed as In the case of And the corresponding performance values , a temperature-performance correlation matrix is ​​constructed to represent the correlation between them, where x is the temperature performance when the humidity is fixed. In the case of , the total number of temperature value samples is sorted out from the classification model;

[0154] Determine the target performance area: Based on the performance difference, find the area with the best performance in the temperature-performance correlation matrix The set of performance values ​​closest to the specified number, let this set be , the corresponding temperature value set is ; Where y is the index of the performance value in this set;

[0155] Evaluate the temperature adjustment of different paths: For each temperature value , calculated from the temperature arrive Adjustment amount: ; and temperature arrive Performance change: ;

[0156] At the same time, considering the "jump" of performance changes, calculate Reach target performance through intermediate temperature-performance combinations The cost is calculated using a custom function to measure;

[0157] Assume the function:

[0158]

[0159] Similarly, fix the temperature to a fixed Calculate all humidity adjustments under the condition of ;

[0160] Select the optimal adjustment path: compare the costs of different paths and choose and The adjustment amount corresponding to the smallest path in the calculation is taken as the adjustment amount.

[0161] After the process efficiency management unit calculates the temperature and humidity adjustment amount, these adjustment amounts are used to accurately adjust the ambient temperature and humidity of the food packaging workshop production line. By connecting environmental adjustment equipment such as air conditioners, humidifiers, dehumidifiers and ventilation equipment, the temperature and humidity in the workshop are changed according to the calculated adjustment amount, so that the performance of the packaging materials is in the best state, thereby improving production efficiency.

[0162] Precise regulation of temperature and humidity can effectively reduce the rate of defective packaging due to the degradation of packaging material performance. For example, when the packaging material is paper, if the humidity is too high and the paper strength decreases, by adjusting the humidity to restore the paper to the appropriate strength, it can avoid problems such as cracking due to insufficient paper strength during the packaging process, reduce packaging rework, and improve the production efficiency of the packaging process.

[0163] At the same time, stable packaging material performance helps optimize equipment operating efficiency. Under appropriate temperature and humidity conditions, packaging materials can better cooperate with packaging equipment, reducing equipment jams and malfunctions caused by abnormalities in paper packaging materials (such as changes in viscosity and flexibility), thereby improving the overall operating speed and reliability of the equipment and ultimately improving the overall production efficiency of the production line.

[0164] The relevant data on temperature and humidity adjustment and production efficiency will also be displayed in the visualization module, allowing managers to timely understand the dynamic changes in adjustment effects and production efficiency and make more reasonable decisions.

[0165] Through precise adjustment strategies, environmental parameters are quickly adjusted to quickly restore the performance of packaging materials to an appropriate state, avoiding the extra time spent on repackaging or processing due to external factors affecting food due to packaging defects. This effectively ensures the continuous and efficient operation of the production line in the food packaging workshop, minimizes shutdowns and maintenance and material waste caused by packaging problems, and allows the production line to maintain efficient operation for a long time, greatly improving the production line's capacity utilization and economic benefits, and achieving a steady improvement in the efficiency of the workshop production line.

[0166] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A food packaging workshop production line efficiency management system, characterized in that: include: A data acquisition module, which includes a temperature sensor and a humidity sensor as well as a sensor for monitoring the performance of packaging materials, and is used to collect historical environmental temperature and humidity data of the food packaging workshop production line and performance parameter data of packaging materials at different production stages; A material analysis module, which is data-connected to the data acquisition module and performs analysis based on the temperature and humidity data and material performance data collected by the data acquisition module, and includes a performance model unit and a weight calculation unit. The performance model unit is used to establish performance models of different packaging materials under various temperature and humidity combinations, and the weight calculation unit is used to calculate the comprehensive weight between temperature, humidity and performance; A production initialization module, which is data-connected to the material analysis module and is used to configure the environmental parameters of the initial food packaging workshop production line according to the packaging material performance model established by the material analysis module; A quality tracing module, which is distributed in every link of the food packaging production line and is used to trace the specific link where the problem occurs when there is a problem with the food packaging; An integrated efficiency management module, which is data-connected with the quality tracing module and the material analysis module, manages the efficiency of personnel and resource utilization according to the analysis results of the material analysis module, and manages the process efficiency based on the tracing results of the quality tracing module; The visualization module is connected to the comprehensive efficiency management module and is used to provide a visualization interface to display the analysis or calculation results of each module of the system.

2. A food packaging workshop production line efficiency management system as claimed in claim 1, characterized in that: The performance model unit establishes the performance model of each material as follows: Assume that the collected temperature and humidity data and material performance data sample set is ,in represents the sample set, Indicates A sample set, Indicates The temperature value of each sample, Indicates Sample humidity values, Indicates The material performance value corresponding to each sample is is the index of the sample; First, the data is normalized to map the values ​​of temperature, humidity and material performance parameter sets to the interval [0,1]. , the normalized formula is: in, , ; n is the total number of samples, superscript It means normalized data; similarly, for humidity The normalized formula is: in, , ; For material performance values The normalized formula is: in, , ; After the data processing is completed, the sample set Based on temperature and humidity Perform clustering to establish a classification model; randomly initialize K cluster centers , j is the index of the cluster center data sample, and K cluster centers are K different combinations of temperature and humidity; For each sample , calculate its distance to each cluster center The Euclidean distance d is: The sample Assign to the nearest cluster center Cluster formation ; Recalculate the cluster center of each cluster using the formula: in Representation Cluster The number of samples in ; Repeat the above process: calculate the distance from the sample to the cluster center, assign clusters, and recalculate the cluster center of each cluster until the cluster center no longer changes, and then stop. The material performance classification model is established.

3. A food packaging workshop production line efficiency management system as claimed in claim 2, characterized in that: The calculation process of the weight calculation unit is as follows: For each cluster , calculate the mean of the material properties within the cluster : For each sample set in the cluster , calculate its similarity with other samples in the cluster based on temperature and humidity , using the cosine similarity formula: Among them, r is the cluster The index of other samples except i in ; Calculate the weighted similarity of each sample The weight required for calculation is the difference between the corresponding sample and the mean of the material properties within the cluster. : Calculate the weights of the effects of temperature and humidity on material properties within the cluster; represents the weight, and Represented as temperature and humidity in cluster The weight within in and Cluster Mean internal temperature and humidity; The comprehensive weight is determined according to the proportion of the number of samples in each cluster to the total number of samples. , calculate the comprehensive weight of the impact of temperature and humidity on material properties and : Through the above similarity calculation principle, the comprehensive weights of the effects of temperature and humidity on material properties are determined, providing a basis for subsequent decision-making.

4. A food packaging workshop production line efficiency management system as claimed in claim 1, characterized in that: The quality traceability module includes a traceability unit, multiple validation units and a monitoring and judgment unit; The multiple validation units are respectively arranged at the handover stage between each link in the production line, and are used to validate the working conditions of the previous link based on relevant packaging specifications to confirm whether there is any problem with the food packaging; The tracing unit performs tracing based on the validation results, takes the validation link where the validation unit is located as an index, locates the link where the packaging problem occurs, and determines the specific cause of the packaging problem, which includes equipment reasons, environmental reasons, and personnel reasons; The monitoring and judging unit includes a temperature sensor and a humidity sensor and is connected to the production line equipment to obtain the equipment operation parameters. Based on the traceability result of the traceability unit, it is judged whether the cause of the packaging problem is the equipment problem by comparing whether the equipment parameters are normal. After the judgment result is that it is not an equipment failure problem, it is judged based on the material performance model established by the material analysis module whether the packaging material is affected by temperature or humidity to cause the packaging problem. If so, the judgment result is transmitted to the comprehensive efficiency management module.

5. A food packaging workshop production line efficiency management system as claimed in claim 4, characterized in that: The comprehensive efficiency management module includes a work efficiency management unit, a resource efficiency management unit and a process efficiency management unit; The work efficiency management unit receives the weights and performance model data of the temperature and humidity impact on the performance of the packaging material from the material analysis module and the real-time temperature and humidity monitoring data of the workshop from the monitoring and judgment unit; Based on this, the temperature and humidity related packaging operation guidelines are updated in the relevant employee training tasks, and the work task allocation strategy for employees under different temperature and humidity conditions is generated according to the packaging process complexity and workload differences corresponding to the changes in packaging material performance caused by temperature and humidity changes; The resource efficiency management unit uses the packaging material performance model of the material analysis module and the real-time data of the monitoring and judgment unit to set a dynamic inventory warning threshold in the packaging material storage link of the production line, and automatically generates a purchase suggestion order according to the material loss rate under different temperature and humidity conditions; The process efficiency management unit calculates the temperature and humidity adjustment amount based on the judgment result of the monitoring and judgment unit, combined with the weight of the temperature and humidity on the performance of the packaging material and the performance model data of the material analysis module, and adjusts the environmental parameters by connecting relevant equipment according to the adjustment amount to ensure the packaging efficiency of the food packaging production line.

6. A food packaging workshop production line efficiency management system as claimed in claim 5, characterized in that: The process efficiency management unit first restores the normalized data in the classification model using a restoration formula; That is, there are K kinds of workshop temperature and humidity conditions in the classification model , and the corresponding packaging material performance ; First, find a set of data closest to the current temperature and humidity conditions from the classification model, set as And the corresponding performance , e is the index of a set of data closest to the current temperature and humidity conditions, and at the same time, find a set of temperature and humidity data that achieves the best performance of the packaging material And the corresponding best performance ; Calculate the performance difference: ; Temperature difference: ; Humidity difference: ; From the weight calculation unit, we know that the weight of temperature on packaging material performance is: , the weight of humidity on packaging material performance is ; From the classification model, we find that the humidity is fixed as In the case of And the corresponding performance values , a temperature-performance correlation matrix is ​​constructed to represent the correlation between them, where x is the temperature performance when the humidity is fixed. In the case of , the total number of temperature value samples is sorted out from the classification model; Determine the target performance area: Based on the performance difference, find the area with the best performance in the temperature-performance correlation matrix The set of performance values ​​closest to the specified number, let this set be , the corresponding temperature value set is ; Where y is the index of the performance value in this set; Evaluate the temperature adjustment of different paths: For each temperature value , calculated from the temperature arrive Adjustment amount: ; and temperature arrive Performance change: ; At the same time, considering the "jump" of performance changes, calculate Reach target performance through intermediate temperature-performance combinations The cost is calculated using a custom function to measure; Assume the function: Similarly, the temperature is fixed at Calculate all humidity adjustments under the condition of ; Select the optimal adjustment path: compare the costs of different paths and choose and The adjustment amount corresponding to the smallest path is taken as the calculated adjustment amount.

7. A food packaging workshop production line efficiency management system as claimed in claim 5, characterized in that: When the result of the determination is that the packaging problem is not caused by the packaging material being affected by temperature and humidity, the monitoring and determination unit transmits an alarm message to the visualization module, indicating that an error may have occurred in the manual operation at this stage.

8. A food packaging workshop production line efficiency management system as claimed in claim 6, characterized in that: When the process efficiency management unit adjusts environmental parameters by connecting relevant equipment, it is prioritized to ensure that the adjusted temperature and humidity are not at the temperature and humidity that the staff can adapt to. The relevant equipment includes but is not limited to air conditioners, humidifiers, dehumidifiers and ventilation equipment.

9. A food packaging workshop production line efficiency management system as claimed in claim 1, characterized in that: The visualization module displays the analysis or calculation results of each module of the system, including the performance model of the packaging material, the traceability results of the quality traceability module, the management content of the comprehensive efficiency management module, and the initialization-related parameters of the production initialization module.

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