CN116957423B

CN116957423B - Production environment monitoring and regulating method and system for packaging film production line

Info

Publication number: CN116957423B
Application number: CN202311216391.6A
Authority: CN
Inventors: 党宇; 谭彪
Original assignee: Zhangjiagang Hefu New Material Technology Co ltd
Current assignee: Zhangjiagang Hefu New Material Technology Co ltd
Priority date: 2023-09-20
Filing date: 2023-09-20
Publication date: 2024-01-12
Anticipated expiration: 2043-09-20
Also published as: CN116957423A

Abstract

The application relates to the technical field of film production, and provides a production environment monitoring and controlling method and system for a packaging film production line. And carrying out relevance analysis based on the film processing record data, obtaining a relevance data set with a relevance analysis result being greater than or equal to a relevance threshold, setting a performance index expected threshold for film performance indexes, carrying out optimal design on controllable environmental factors to generate an environmental factor expected threshold, and carrying out dynamic regulation and control on environmental factor monitoring information of a film production line according to the environmental factor expected threshold. The method can solve the technical problems that the production environment interferes with the film production and further causes the film production defect due to less intervention on the environment where the film is produced in the prior art, and has the technical effects of reducing the interference of the production environment on the film production quality, guaranteeing the production stability of the packaging film and further improving the production quality of the packaging film.

Description

Production environment monitoring and regulating method and system for packaging film production line

Technical Field

The application relates to the technical field of film production, in particular to a production environment monitoring and regulating method and system for a packaging film production line.

Background

Today, with the continuous expansion of the application range of films and the increase of environmental awareness, film production is always in a rapid development period. However, due to the limitations of the state of the art, the intervention in the environment in which the film is produced is not sufficient, resulting in the occurrence of production defects.

It can be found from the whole preparation process of film production that the change of environmental factors produces interference to certain links in the film production process, thereby adversely affecting the quality of the film. For example, the temperature is too high, which can lead to the reduction of the thermal stability of the film material and even the generation of adverse reactions such as thermal decomposition; excessive humidity may affect the rate of film growth, lead to uneven thickness distribution of the film, and the like. In the current production practice, the influence of the production environment on the film production is not fully paid attention, and the environmental adjustment is less in the production treatment process.

In summary, the prior art has the technical problem that the production environment interferes with the film production and causes defects of the film production due to less intervention on the environment of the film production.

Disclosure of Invention

Based on the above, it is necessary to provide a method and a system for monitoring and controlling the production environment for a packaging film production line, which can reduce the interference of the production environment on the film production quality, ensure the production stability of the packaging film, and further improve the production quality of the packaging film.

A production environment monitoring and controlling method for a packaging film production line comprises the following steps: acquiring film processing record data of a first production node of a film production line; performing relevance analysis based on the film processing record data to obtain a relevance data set with a relevance analysis result being greater than or equal to a relevance threshold, wherein the relevance data set comprises film performance indexes and controllable environmental factors; setting a performance index expected threshold for the film performance index, and optimally designing the controllable environmental factor to generate an environmental factor expected threshold; and dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold.

A production environment monitoring and control system for a packaging film production line, the system comprising: the processing record acquisition module is used for acquiring film processing record data of a first production node of the film production line; the data association analysis module is used for carrying out association analysis based on the film processing record data to obtain an association data set with an association degree analysis result being greater than or equal to an association degree threshold value, wherein the association data set comprises a film performance index and a controllable environment factor; the optimal design execution module is used for setting a performance index expected threshold value for the film performance index, optimally designing the controllable environmental factor and generating an environmental factor expected threshold value; and the dynamic regulation and control execution module is used for dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold value.

A computer device comprising a memory storing a computer program and a processor which when executing the computer program performs the steps of:

acquiring film processing record data of a first production node of a film production line;

performing relevance analysis based on the film processing record data to obtain a relevance data set with a relevance analysis result being greater than or equal to a relevance threshold, wherein the relevance data set comprises film performance indexes and controllable environmental factors;

setting a performance index expected threshold for the film performance index, and optimally designing the controllable environmental factor to generate an environmental factor expected threshold;

and dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold.

A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

The production environment monitoring and controlling method and system for the packaging film production line solve the technical problems that in the prior art, the production environment interferes with the film production and further causes film production defects due to less environmental intervention in film production, and the technical effects of reducing the interference of the production environment on the film production quality, guaranteeing the production stability of the packaging film and further improving the production quality of the packaging film are achieved.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

FIG. 1 is a schematic flow chart of a method for monitoring and controlling production environment for a packaging film production line according to one embodiment;

FIG. 2 is a schematic flow chart of a correlation analysis of film processing record data in a production environment monitoring and controlling method for a packaging film production line according to an embodiment;

FIG. 3 is a block diagram of a system for monitoring and controlling a production environment for a packaging film production line according to one embodiment;

fig. 4 is an internal structural diagram of a computer device in one embodiment.

Reference numerals illustrate: the processing record acquisition module 1, the data association analysis module 2, the optimal design execution module 3 and the dynamic regulation execution module 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

As shown in fig. 1, the present application provides a production environment monitoring and controlling method for a packaging film production line, including:

s100, acquiring film processing record data of a first production node of a film production line;

specifically, in this embodiment, the packaging film is a material for packaging, covering or protecting commodities, and is usually made of plastic or a composite material, and has the functions of moisture protection, dust protection, oxidation protection, fresh keeping and the like, and common packaging films include polyethylene films, bubble films and nylon films. The plurality of production devices for accomplishing the specific production purpose are arranged in a certain order to form a complete film production line, which is a production line for processing and producing packaging films.

The first production node is a production node which greatly changes the physical and chemical properties of the packaging film on a film production line, for example, an extruded film is heated and stretched to further improve the strength, transparency, smoothness and the like, and the stretched film is cooled by a cooling roller to eliminate residual stress, so that the film has a cooling node with better stability and flatness.

The first production node is generally provided with a processing device, film processing record data of the first production node are obtained, and the film processing record data specifically comprise processing device control parameter record data, packaging film semi-finished product physical and chemical property acquisition record and first production node environment record data.

S200, carrying out relevance analysis based on the film processing record data to obtain a relevance data set with a relevance analysis result being greater than or equal to a relevance threshold, wherein the relevance data set comprises film performance indexes and controllable environmental factors;

in one embodiment, as shown in fig. 2, performing a correlation analysis based on the film processing record data, and obtaining a correlation data set with a correlation analysis result greater than or equal to a correlation threshold, where the correlation data set includes a film performance index and a controllable environmental factor, a method step S200 provided in the present application further includes:

S210, acquiring non-environmental factor recording data based on the film processing recording data;

s220, screening out the film processing record data of which the non-environmental factor record data does not accord with a non-environmental factor preset interval, and obtaining a data cleaning result, wherein the data cleaning result comprises environmental factor record data and performance index characteristic value record data;

s230, carrying out correlation analysis on the environmental factor record data based on the performance index characteristic value record data of the film performance index to obtain the controllable environmental factor.

In one embodiment, based on the performance index feature value record data of the film performance index, performing correlation analysis on the environment factor record data to obtain the controllable environment factor, and the method provided in step S230 further includes:

s231, carrying out relevance analysis on the inner environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining an inner environment factor with a first relevance analysis result being greater than or equal to a first relevance threshold value, and adding the inner environment factor into a first type controllable factor of the controllable environment factor;

And S232, carrying out relevance analysis on the external environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining a second type controllable factor of which the second relevance analysis result is greater than or equal to a second relevance threshold value and adding the second type controllable factor into the controllable environment factor.

In one embodiment, the method steps provided herein further comprise:

s232-1, the environment factors comprise the inner environment factor and the outer environment factor;

s232-2, setting a first factor characteristic preset interval for the inner environmental factors and a second factor characteristic preset interval for the outer environmental factors;

s232-3, screening the data cleaning results of the environmental factor record data which accord with the first factor characteristic preset interval to obtain a first screening result; and

s232-4, screening the data cleaning results of the external environment factor record data which accord with the second factor characteristic preset interval to obtain a second screening result;

s232-5, performing correlation analysis on the characteristic value record data of the performance index and the environmental factor record data of the second screening result to obtain the first type controllable factor;

S232-6, carrying out correlation analysis on the performance index characteristic value record data and the external environment factor record data of the first screening result to obtain the second type controllable factor.

Specifically, in this embodiment, the non-environmental factor record data is processing equipment control parameter record data of a non-environmental element, including a plurality of sets of processing equipment control parameters. The film processing record data specifically comprises processing equipment control parameter record data (non-environmental factor record data), packaging film semi-finished product physical and chemical property acquisition record (performance index characteristic value record data) and first production node environment record data (environmental factor record data).

And acquiring non-environmental factor recording data based on the film processing recording data, and presetting a non-environmental factor preset interval, wherein the non-environmental factor preset interval is a value interval of a plurality of processing equipment control parameters, and when each processing equipment control parameter in a certain group of non-environmental factor recording data falls into the non-environmental factor preset interval, the packaging film production of a first production node based on the group of non-environmental factor recording data is considered to have no interference effect on the physical and chemical properties of the produced film.

Traversing the non-environmental factor record data according to the non-environmental factor preset interval as a data screening reference to obtain a plurality of groups of non-environmental factor record data which do not accord with the non-environmental factor preset interval in the non-environmental factor record data, obtaining a plurality of groups of packaging film semi-finished product physical and chemical property acquisition records and first production node environment record data corresponding to the non-environmental factor record data in the film processing record data based on the plurality of groups of non-environmental factor record data obtained by screening, deleting the non-environmental factor record data together to obtain a data cleaning result, wherein the data cleaning result comprises a plurality of non-environmental factor record data, a plurality of environmental factor record data and a plurality of performance index characteristic value record data, and a plurality of data in the data cleaning result have a mapping relation based on the packaging film production result. According to the method, the device and the system, the data cleaning is carried out based on the non-environmental factor preset interval, so that the environmental factor record data and the performance index characteristic value record data of the first production node for removing the influence of the production and processing equipment parameters on the physical and chemical properties of the film production result are obtained, the interference factors are eliminated, and the influence of the production environment in the first production node on the film processing performance is analyzed singly.

The film performance indexes comprise tensile strength, transparency, smoothness and the like, and the characteristic value record data of the performance indexes are tensile strength values, transparency indexes, smoothness indexes and the like which are obtained based on special physicochemical property testing equipment and correspond to the tensile strength, the transparency, the smoothness and the like.

The environmental factors are environmental characteristics of the first production node, the environmental factors comprise the inner environmental factors and the outer environmental factors, and the outer environmental factors are internal environmental factors of production processing equipment in the first production node in the packaging film production process of the first production node, including but not limited to temperature factors, humidity factors and atmosphere factors. The external environmental factor is the external environment in which the processing equipment is located in the first production node, including but not limited to a temperature factor, a humidity factor, an air composition factor.

The environment factors comprise the inner environment factors and the outer environment factors, the environment factor record data comprise outer environment factor record data and inner environment factor record data, the inner environment factor record data comprise, but are not limited to, temperature data, humidity data and atmosphere data (nitrogen content) in the process of producing the internal environment of the processing equipment in the first production node in the process of producing the packaging film for the first production node, and the outer environment factor record data comprise, but are not limited to, temperature data, humidity data and air composition data in the environment of the processing equipment in the first production node.

It should be understood that when the value of the lining environment factor changes within a certain interval, the lining environment factor has no influence on the production quality of the packaging film, so the embodiment sets a first factor characteristic preset interval for the lining environment factor, the first factor characteristic interval includes a plurality of value change intervals of the lining environment factor, and when the first production node performs the packaging film production, the processing equipment lining environment data all meet the first factor characteristic preset interval, so that the lining environment factor has no influence on the production quality of the packaging film.

For example, the first factor characteristic preset interval may be determined by the following procedure:

when the inner environmental factor data is temperature, humidity and nitrogen content, the outer environmental factor data is temperature, humidity and air composition, the outer environmental factor data is fixed as a standard value, the inner environmental temperature and humidity are kept unchanged as the standard value, in the film production process of the processing equipment based on the first node, the nitrogen content is continuously changed to produce packaging films, the film performance is detected, and the nitrogen content node with the film performance reaching a qualified value and the performance changed for the second time is used as a nitrogen content factor characteristic preset interval in a first factor characteristic preset interval; controlling the nitrogen content to be in a nitrogen content factor characteristic preset interval, controlling the temperature to be constant, continuously changing the internal environment humidity value in the film production process by processing equipment based on a first node, carrying out packaging film production, detecting the film performance, and taking an air humidity node with the film performance reaching a qualified value and the performance changed for the second time as a humidity factor characteristic preset interval in the first factor characteristic preset interval; controlling the nitrogen content to be in a nitrogen content factor characteristic preset interval, controlling the nitrogen content to be in a humidity factor characteristic preset interval, continuously changing the internal environment temperature value in the film production process of processing equipment based on a first node, producing packaging films, detecting the film performance, and taking a temperature value node with the film performance reaching a qualified value and the performance changing for the second time as a temperature factor characteristic preset interval in the first factor characteristic preset interval; the humidity factor characteristic preset section, the nitrogen content factor characteristic preset section and the temperature factor characteristic preset section form the first factor characteristic preset section.

The data cleaning result comprises environmental factor recording data and performance index characteristic value recording data, the environmental factor recording data and the performance index characteristic value recording data have a mapping relation based on specific packaging film production results, and one packaging film production result corresponds to one group of environmental factor recording and performance index characteristic value recording.

And calling lining environment factor record data based on the data cleaning result, and screening the data cleaning result of which the lining environment factor record data accords with the first factor characteristic preset interval to obtain a first screening result, wherein the first screening result is lining environment factor record data, outer environment factor record data and performance index characteristic value record data of which the lining environment factor record data accords with the mapping relation of the first factor characteristic preset interval. In the embodiment, the data screening is performed by setting the first factor characteristic preset interval, so that the first screening result of single-dimension variable analysis is ensured, wherein the obtained packaging film production result is only related to the external environment factor.

The first screening result is inner environment factor record data, outer environment factor record data and performance index characteristic value record data which have mapping relation based on a plurality of packaging film production results, wherein the inner environment factor record data belongs to invalid data which has no influence on the performance index characteristic value, the discarding process is carried out, and the association relation between the outer environment factors and the performance index characteristic is determined by gray association degree analysis.

Specifically, the performance indexes of the film comprise tensile strength, transparency, smoothness and the like, and the characteristic value record data of the performance indexes are tensile strength values, transparency indexes, smoothness indexes and the like which are obtained based on special physicochemical property testing equipment and correspond to the tensile strength, the transparency, the smoothness and the like.

And obtaining external environment factor record data and performance index characteristic value record data corresponding to the same packaging film production result in the first screening result, thereby obtaining tensile strength values- (temperature data, humidity data and air composition data), transparency indexes- (temperature data, humidity data and air composition data) and smoothness indexes- (temperature data, humidity data and air composition data) of the plurality of packaging film production results.

And performing correlation analysis processing on the characteristic value record data of the performance indexes of the plurality of packaging films, namely the external environment factor record data, as input data of gray correlation analysis to obtain a second correlation analysis result, wherein the second correlation analysis result is a tensile strength value- (temperature factor correlation, humidity factor correlation and air component factor correlation), a transparency index- (temperature factor correlation, humidity factor correlation and air component factor correlation), a smoothness index- (temperature factor correlation, humidity factor correlation and air component factor correlation of the production results of the plurality of packaging films.

And presetting a second association threshold value, wherein the second association threshold value is used for judging whether a strong association relation exists between one external environment factor change and a certain performance index according to the environment factor association mean value. And adding the external environment factors which are larger than or equal to a second association threshold value in the second association analysis result into second type controllable factors of the controllable environment factors, wherein the second type controllable factors are a plurality of groups of smoothness performance indexes- (temperature factors and humidity factors) and a plurality of groups of transparency performance indexes- (temperature factors and air component factors).

The method comprises the steps of setting a first factor characteristic interval for the inner environmental factor, setting a second factor characteristic preset interval for the outer environmental factor, and screening the data cleaning result of the outer environmental factor record data which accords with the second factor characteristic preset interval to obtain a second screening result by adopting the same method for obtaining a first screening result.

And obtaining a second type of controllable factor based on gray correlation analysis, setting a second correlation threshold in the same method, performing correlation analysis on the inner environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining an inner environment factor with a first correlation analysis result being greater than or equal to a first correlation threshold, wherein the first type of controllable factor and the second type of controllable factor are added into a first type of controllable factor of the controllable environment factor, and the first type of controllable factor and the second type of controllable factor are collectively called as the controllable environment factor.

According to the embodiment, the first type controllable factors and the second type controllable factors are determined through analysis, so that the factors influencing the performance of the packaging film are determined based on single variable analysis, and the technical effect of providing a regulating object for regulating the environmental factors subsequently is achieved, and the film production stability and the qualification rate are improved.

S300, setting a performance index expected threshold value for the film performance index, and optimally designing the controllable environmental factor to generate an environmental factor expected threshold value;

in one embodiment, a performance index expected threshold is set for the performance index of the thin film, the controllable environmental factor is optimally designed, and the environmental factor expected threshold is generated, and the method provided in the application further includes:

S310, acquiring a film performance mapping model, wherein the film performance mapping model comprises a first mapping sub-model which maps the first type controllable factors to the film performance indexes and a second mapping sub-model which maps the second type controllable factors to the film performance indexes;

s320, mapping the first type controllable factor adjustment value according to the first mapping sub-model to obtain a first mapping result;

s330, mapping the second type controllable factor adjustment value according to the second mapping sub-model to obtain a second mapping result;

s340, superposing the first mapping result and the second mapping result to obtain a third mapping result;

s350, when the third mapping result meets the expected threshold of the performance index, setting the expected threshold of the environmental factor according to the first type controllable factor adjustment value and the second type environmental factor adjustment value.

In one embodiment, the method steps provided herein further comprise:

s351, when the adjustment times of the controllable environmental factors are larger than or equal to an expansion analysis threshold, constructing an environmental factor fitness function according to the film performance index, wherein the larger the output value of the environmental factor fitness function is, the smaller the deviation degree between the controllable environmental factors and the performance index expected threshold is;

S352, inputting the third mapping result of the generated environmental factors into the environmental factor fitness function to obtain M fitness output values, wherein M is the same as the third mapping result in number;

s353, expanding the N groups of environment factor adjustment values of the N third mapping results with the M fitness output values being greater than or equal to a first fitness threshold by g generations to obtain an environment factor expansion result;

s354, screening the environmental factor expansion result according to the film performance mapping model and the environmental factor fitness function to obtain the environmental factor expected threshold value, wherein the method comprises the following steps:

mapping the environmental factor expansion result according to the film performance mapping model, and constructing the environmental factor expected threshold according to the environmental factor expansion result meeting the performance index expected threshold;

s355, when the environmental factor expansion result meeting the performance expected threshold is zero, processing the environmental factor expansion result according to the environmental factor fitness function, and constructing the environmental factor expected threshold according to the environmental factor expansion result which is greater than or equal to a second fitness threshold, wherein the second fitness threshold is greater than the first fitness threshold.

In one embodiment, the method step S3530 further includes:

s353-1, according to the controllable environment factors, constructing a high-dimensional space coordinate system, wherein the dimension of the high-dimensional space coordinate system is the same as the types and the number of the controllable environment factors, and coordinate positioning is realized by environment factor adjustment values;

s353-2, setting single generation expansion constraint quantity and expansion constraint window;

s353-3, traversing N groups of g-1 generation environment factors with the g-1 generation fitness being greater than or equal to the first fitness threshold, and expanding in the high-dimensional space coordinate system based on the single generation expansion constraint number and the expansion constraint window to obtain an environment factor expansion result;

s353-4, wherein the expansion constraint window is a three-dimensional space window with a preset diameter in the high-dimensional space coordinate system, the central coordinate of the expansion constraint window is set as the positioning coordinate of the N groups of g-1 generation environmental factors during expansion, and expansion is uniformly distributed in the expansion constraint window based on the single generation expansion constraint quantity.

Specifically, in the present embodiment, the thin film performance mapping model includes a first mapping sub-model that maps from the first type of controllable factor to the thin film performance index, a second mapping sub-model that maps from the second type of controllable factor to the thin film performance index, the first mapping sub-model including a mapping model of a plurality of performance index feature values, and the second mapping sub-model including a mapping model of a plurality of performance index feature values.

The second type of controllable factor is exemplified as a smoothness performance index- (temperature factor, humidity factor), the second type of controllable factor record data input by the smoothness performance index mapping model in the second mapping model is exemplified as temperature data and humidity data, and the output result is exemplified as a smoothness index.

The first mapping sub-model and the second mapping sub-model are built based on the feedforward neural network, the building methods of the first mapping sub-model and the second mapping sub-model are identical, and the building methods of the mapping sub-models are explained by building the mapping model of the smoothness index and the second type controllable factor in the second mapping sub-model.

A plurality of sets of smoothness indexes- (temperature data, humidity data) are obtained based on the first screening result of step S200. As training data for the mapping model of smoothness index and the second type controllable factor, 8:1: the data dividing method comprises the steps of dividing training data into a training set, a verification set and a test set, training and testing a mapping model of the smoothness index and the second type controllable factor based on the training set and the test set, and verifying the accuracy of an output result of the mapping model of the smoothness index and the second type controllable factor based on the verification set to obtain the mapping model of the smoothness index and the second type controllable factor, wherein the output accuracy is higher than 97%. Training and constructing a mapping model of a plurality of performance index feature values in the first mapping sub-model by adopting the same method, and constructing a mapping model of a plurality of performance index feature values in the second mapping sub-model.

And carrying out random assignment on a plurality of environmental factors in the first type of controllable factors to obtain a first type of controllable factor adjustment value, and inputting a first mapping sub-model to obtain a first mapping result, wherein the first mapping result is a plurality of performance index characteristic values.

And carrying out random assignment on a plurality of environmental factors in the second type of controllable factors to obtain a second type of controllable factor adjustment value, and inputting a second mapping sub-model to obtain a second mapping result, wherein the second mapping result is a plurality of performance index characteristic values.

And superposing the first mapping result and the second mapping result to obtain a third mapping result, and presetting a performance index expected threshold, wherein the performance index expected threshold is a plurality of performance index characteristic value taking intervals, and when the third mapping result accords with the performance index expected threshold, the first type controllable factor adjustment value and the second type controllable factor adjustment value are considered to be based on, so that the inner environment and the outer environment of the first production node are controlled, and the packaging film qualified stable production can be carried out at the first production node.

Judging whether a plurality of performance index characteristic values in the third mapping result meet the performance index expected threshold, and setting the environment factor expected threshold according to the first type controllable factor adjustment value and the second type environment factor adjustment value according to the group when the third mapping result meets the performance index expected threshold.

Presetting an expansion analysis threshold, wherein the expansion analysis threshold is the limit of the number of times of performing S320-S340 steps, performing random assignment on a plurality of environmental factors in a first type of adjustable factors based on the expansion analysis threshold to avoid wireless circulation to obtain a first type of controllable factor adjustment value, inputting a first mapping submodel to obtain the first mapping result, performing random assignment on a plurality of environmental factors in a second type of adjustable factors to obtain a second type of controllable factor adjustment value, inputting a second mapping submodel to obtain the second mapping result, and combining the first mapping result and the second mapping result to obtain a third mapping result and judging the performance index expected threshold.

When the adjustment times of the controllable environmental factors are greater than or equal to an expansion analysis threshold, an environmental factor fitness function is constructed according to the film performance index, the specific expression form of the environmental factor fitness function is not limited, and the function characteristic of the environmental factor fitness function is that the deviation degree of a third mapping result corresponding to the controllable environmental factors from the performance index expected threshold is smaller when the output value is larger.

And inputting M third mapping results corresponding to M groups of environment factor adjustment values obtained by randomly adjusting a plurality of controllable environment factors into the environment factor fitness function to obtain M fitness output values, wherein the number of M is the same as that of the third mapping results.

A first fitness threshold is preset, the first fitness threshold is a constraint of an output result of the environment factor fitness function, and when the output value of the environment factor fitness function is greater than or equal to the first fitness threshold, a group of environment factor adjustment values corresponding to the output result of the environment factor fitness function are considered to be close to environment parameters meeting the environment adjustment requirement of a first production node.

And screening the M fitness output values based on the first fitness threshold value to obtain N groups of environment factor adjustment values of N third mapping results corresponding to the N fitness output values larger than or equal to the first fitness threshold value, further expanding the N groups of environment factor adjustment values, and specifically expanding g generations, wherein g is a positive integer larger than 1.

Specifically, the method for expanding the adjustment values based on the N groups of environmental factors comprises the following steps:

and according to the controllable environmental factors, a high-dimensional space coordinate system is formed, the dimension of the high-dimensional space coordinate system is the same as the types and the quantity of the controllable environmental factors, N groups of environmental factor adjustment values are input into the high-dimensional space coordinate system for coordinate positioning, and N groups of environmental factor adjustment values correspond to N intersection points in the high-dimensional space coordinate system.

And the number of the single generation expansion constraints is set to avoid the increase of the calculated amount of the system caused by the expansion of a plurality of invalid environment factor adjustment values in a high-dimensional space coordinate system in the process of expanding a plurality of environment factor adjustment values based on N groups of environment factor adjustment values and limiting the number of groups expanded in each generation.

Setting the expansion constraint window, wherein the expansion constraint window is a three-dimensional space window with a preset diameter in the high-dimensional space coordinate system, namely a sphere with a preset diameter in the high-dimensional space coordinate system,

and based on the single generation expansion constraint quantity and the expansion constraint window, performing g generation expansion in the high-dimensional space coordinate system to obtain the environment factor expansion result, wherein the environment factor expansion result is a g generation N group environment factor adjustment value meeting the single generation expansion constraint quantity requirement.

When N groups of environment factor adjustment values are obtained in each generation, presetting an environment factor adjustment range, namely setting the specific fitness range to perform local data change around the N groups of environment factor adjustment values, and completing expansion to obtain N groups of environment factor adjustment values meeting the requirement of single generation expansion constraint quantity multiple.

Traversing N groups of g-1 generation environment factors with the g-1 generation fitness being greater than or equal to the first fitness threshold, expanding in the high-dimensional space coordinate system based on the single generation expansion constraint number and the expansion constraint window to obtain an environment factor expansion result, wherein the environment factor expansion result is a plurality of groups of environment factor adjustment values. It should be noted that, in this embodiment, when expanding, the central coordinate of the expansion constraint window is set as the positioning coordinate of the N groups of g-1 generation environmental factors, and expansion is uniformly distributed in the expansion constraint window based on the number of single generation expansion constraints.

And mapping the environmental factor expansion result according to the film performance mapping model to obtain a plurality of third mapping results corresponding to a plurality of groups of environmental factor adjustment values in the environmental factor expansion result. Comparing a plurality of mapping results with the performance index expected threshold value to obtain Z environment factor expansion results meeting the performance index expected threshold value, extracting specific environment factors based on the Z environment factor expansion results to obtain a plurality of groups of values of a plurality of environment factors, obtaining a maximum adjustment value and a minimum adjustment value of each specific environment factor based on the plurality of groups of specific values of the plurality of specific environment factors, and constructing the environment factor expected threshold value, wherein the environment factor expected threshold value is a parameter value range of the plurality of specific environment factors, such as a temperature factor value range [ 15-37 ] DEG C in an external environment factor.

And when the environmental factor expansion result meeting the performance expected threshold is zero, setting a second fitness threshold by adopting the same method for setting the first fitness threshold, wherein the second fitness threshold is larger than the first fitness threshold.

And adopting the same method of carrying out environmental factor expansion on M groups of environmental factor adjustment values based on the first fitness threshold, processing the environmental factor expansion result according to the environmental factor fitness function, and constructing the environmental factor expected threshold according to the environmental factor expansion result which is greater than or equal to the second fitness threshold.

According to the embodiment, the first production node is obtained to carry out stable production of the packaging film, the value interval of the environmental parameter required by stable production of the packaging film is indirectly realized, the interference of the production environment on the production quality of the film is avoided, the interference influence of the environmental factor on the production of the film at the first production node is reduced, the production stability of the packaging film is ensured, and the technical effect of the production quality of the packaging film is improved.

S400, dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold.

Specifically, in this embodiment, the environmental factor monitoring information is obtained by collecting parameters of a plurality of environmental factors included in the environmental factor expected threshold through a plurality of multi-type environmental sensors disposed in a workshop where the first production node is located and a plurality of multi-type environmental sensors disposed in the processing equipment of the first production node, the environmental factor monitoring information is compared with the environmental factor expected threshold, and the environmental factors that do not meet the environmental factor expected threshold are adjusted and controlled, for example, the environmental temperature of the workshop where the first production node is located is reduced, the environmental humidity of the workshop is improved, and the like.

The embodiment realizes the technical effects of reducing the interference of the production environment on the film production quality, guaranteeing the production stability of the packaging film and further improving the production quality of the packaging film.

In one embodiment, as shown in fig. 3, there is provided a production environment monitoring and control system for a packaging film production line, comprising: the processing record acquisition module 1, the data association analysis module 2, the optimal design execution module 3 and the dynamic regulation execution module 4, wherein:

the processing record acquisition module 1 is used for acquiring film processing record data of a first production node of a film production line;

The data association analysis module 2 is used for carrying out association analysis based on the film processing record data to obtain an association data set with an association degree analysis result being greater than or equal to an association degree threshold value, wherein the association data set comprises a film performance index and a controllable environment factor;

the optimal design execution module 3 is used for setting a performance index expected threshold value for the film performance index, optimally designing the controllable environmental factor and generating an environmental factor expected threshold value;

and the dynamic regulation and control execution module 4 is used for dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold value.

In one embodiment, the system further comprises:

the processing data extraction unit is used for acquiring non-environmental factor recording data based on the film processing recording data;

the data screening execution unit is used for screening the film processing record data of which the non-environmental factor record data does not accord with a non-environmental factor preset interval to obtain a data cleaning result, wherein the data cleaning result comprises environmental factor record data and performance index characteristic value record data;

and the association analysis execution unit is used for carrying out association analysis on the environmental factor record data based on the performance index characteristic value record data of the film performance index to acquire the controllable environmental factor.

In one embodiment, the system further comprises:

the controllable factor analysis unit is used for carrying out relevance analysis on the inner environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining an inner environment factor with a first relevance analysis result being greater than or equal to a first relevance threshold value, and adding the inner environment factor into the controllable environment factor of a first type;

and the analysis result processing unit is used for carrying out relevance analysis on the external environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining a second type controllable factor, wherein the second relevance analysis result is greater than or equal to a second relevance threshold, of the external environment factor, and the second type controllable factor is added into the controllable environment factor.

In one embodiment, the system further comprises:

an environmental factor determining unit configured to determine an environmental factor including the inner environmental factor and the outer environmental factor;

a preset interval obtaining unit, configured to set a first factor characteristic preset interval for the inner environmental factor, and set a second factor characteristic preset interval for the outer environmental factor;

The data screening execution unit is used for screening the data cleaning results of the inner environment factor record data which accord with the first factor characteristic preset interval to obtain a first screening result;

the screening result obtaining unit is used for screening the data cleaning result of the external environment factor record data which accords with the second factor characteristic preset interval to obtain a second screening result;

the environmental factor analysis unit is used for carrying out correlation analysis on the characteristic value record data of the performance index and the environmental factor record data of the second screening result to obtain the first type controllable factor;

and the association analysis execution unit is used for carrying out association analysis on the performance index characteristic value record data and the external environment factor record data of the first screening result to obtain the second type controllable factor.

In one embodiment, the system further comprises:

a mapping model construction unit, configured to obtain a film performance mapping model, where the film performance mapping model includes a first mapping sub-model that maps from the first type controllable factor to the film performance index, and a second mapping sub-model that maps from the second type controllable factor to the film performance index;

The mapping result obtaining unit is used for mapping the first type controllable factor adjustment value according to the first mapping sub-model to obtain a first mapping result;

the mapping processing execution unit is used for mapping the second type of controllable factor adjustment value according to the second mapping sub-model to obtain a second mapping result;

the mapping result superposition unit is used for superposing the first mapping result and the second mapping result to obtain a third mapping result;

and the expected threshold setting unit is used for setting the environment factor expected threshold according to the first type controllable factor adjustment value and the second type environment factor adjustment value when the third mapping result accords with the performance index expected threshold.

In one embodiment, the system further comprises:

the fitness function construction unit is used for constructing an environment factor fitness function according to the film performance index when the adjustment times of the controllable environment factors are larger than or equal to an expansion analysis threshold, wherein the deviation degree of the controllable environment factors from the performance index expected threshold is smaller when the output value of the environment factor fitness function is larger;

the fitness result output unit is used for inputting the third mapping result of the generated environmental factor into the environmental factor fitness function to obtain M fitness output values, wherein M is the same as the third mapping result in number;

The data expansion execution unit is used for expanding the N groups of environment factor adjustment values of the N third mapping results with the M fitness output values being larger than or equal to a first fitness threshold value by g generations to obtain environment factor expansion results;

the expansion result screening unit is configured to screen the environmental factor expansion result according to the film performance mapping model and the environmental factor fitness function, and obtain the environmental factor expected threshold, where the expansion result screening unit includes:

and the expected threshold construction unit is used for processing the environmental factor expansion result according to the environmental factor fitness function when the environmental factor expansion result meeting the performance expected threshold is zero, and constructing the environmental factor expected threshold according to the environmental factor expansion result which is greater than or equal to a second fitness threshold, wherein the second fitness threshold is greater than the first fitness threshold.

In one embodiment, the system further comprises:

The space coordinate construction unit is used for constructing a high-dimensional space coordinate system according to the controllable environment factors, wherein the dimension of the high-dimensional space coordinate system is the same as the types and the number of the controllable environment factors, and coordinate positioning is realized by an environment factor adjustment value;

the constraint window setting unit is used for setting the single generation expansion constraint quantity and expansion constraint windows;

the expansion result output unit is used for traversing N groups of g-1 generation environment factors with the g-1 generation fitness being greater than or equal to the first fitness threshold, expanding the environment factors in the high-dimensional space coordinate system based on the single generation expansion constraint number and the expansion constraint window, and obtaining the environment factor expansion result;

the expansion constraint window is a three-dimensional space window with a preset diameter in the high-dimensional space coordinate system, the central coordinate of the expansion constraint window is set as the positioning coordinate of the N groups of g-1 generation environmental factors during expansion, and expansion is uniformly distributed in the expansion constraint window based on the single generation expansion constraint quantity.

For a specific embodiment of a system for monitoring and controlling a production environment for a packaging film production line, reference may be made to the above embodiment of a method for monitoring and controlling a production environment for a packaging film production line, which is not described herein. The modules in the production environment monitoring and controlling system for the packaging film production line can be fully or partially realized by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 4. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used for storing news data, time attenuation factors and other data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, implements a method for monitoring and controlling a production environment for a packaging film production line.

Those skilled in the art will appreciate that the structures shown in FIG. 4 are block diagrams only and do not constitute a limitation of the computer device on which the present aspects apply, and that a particular computer device may include more or less components than those shown, or may combine some of the components, or have a different arrangement of components.

In one embodiment, a computer readable storage medium is provided, comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program: acquiring film processing record data of a first production node of a film production line; performing relevance analysis based on the film processing record data to obtain a relevance data set with a relevance analysis result being greater than or equal to a relevance threshold, wherein the relevance data set comprises film performance indexes and controllable environmental factors; setting a performance index expected threshold for the film performance index, and optimally designing the controllable environmental factor to generate an environmental factor expected threshold; and dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. The production environment monitoring and controlling method for the packaging film production line is characterized by comprising the following steps of:

dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold;

Performing relevance analysis based on the film processing record data to obtain a relevance data set with a relevance analysis result being greater than or equal to a relevance threshold, wherein the relevance data set comprises a film performance index and a controllable environment factor, and the method comprises the following steps:

acquiring non-environmental factor recording data based on the film processing recording data;

screening out the film processing record data of which the non-environmental factor record data does not accord with a non-environmental factor preset interval to obtain a data cleaning result, wherein the data cleaning result comprises environmental factor record data and performance index characteristic value record data;

performing correlation analysis on the environmental factor record data based on the performance index characteristic value record data of the film performance index to obtain the controllable environmental factor, wherein the method comprises the following steps:

performing relevance analysis on the inner environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining an inner environment factor with a first relevance analysis result being greater than or equal to a first relevance threshold value, and adding the inner environment factor into a first type controllable factor of the controllable environment factor;

Performing relevance analysis on the external environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining a second type controllable factor of which the second relevance analysis result is greater than or equal to a second relevance threshold value, wherein the second type controllable factor is added into the controllable environment factor;

wherein the method further comprises:

the environmental factors include the inner environmental factor and the outer environmental factor;

setting a first factor characteristic preset interval for the inner environmental factors and a second factor characteristic preset interval for the outer environmental factors;

screening the data cleaning results of the inner environmental factor record data conforming to the first factor characteristic preset interval to obtain a first screening result; and

screening the data cleaning results of the external environment factor record data conforming to the second factor characteristic preset interval to obtain a second screening result;

performing correlation analysis on the performance index characteristic value record data and the environmental factor record data of the second screening result to obtain the first type controllable factor;

and carrying out association analysis on the performance index characteristic value record data and the external environment factor record data of the first screening result to obtain the second type controllable factor.

2. The method of claim 1, wherein setting a performance index desired threshold for the film performance index, optimally designing the controllable environmental factor, generating an environmental factor desired threshold, comprises:

obtaining a film performance mapping model, wherein the film performance mapping model comprises a first mapping sub-model which maps the first type controllable factors to the film performance indexes and a second mapping sub-model which maps the second type controllable factors to the film performance indexes;

mapping the first type controllable factor adjustment value according to the first mapping sub-model to obtain a first mapping result;

mapping the second type controllable factor adjustment value according to the second mapping sub-model to obtain a second mapping result;

superposing the first mapping result and the second mapping result to obtain a third mapping result;

and when the third mapping result accords with the performance index expected threshold, setting the environment factor expected threshold according to the first type controllable factor adjustment value and the second type environment factor adjustment value.

3. The method as recited in claim 2, further comprising:

When the adjustment times of the controllable environmental factors are larger than or equal to an expansion analysis threshold, constructing an environmental factor fitness function according to the film performance index, wherein the deviation degree of the controllable environmental factors from the performance index expected threshold is smaller when the output value of the environmental factor fitness function is larger;

inputting the third mapping result of the generated environmental factors into the environmental factor fitness function to obtain M fitness output values, wherein M is the same as the third mapping result in number;

expanding the N groups of environment factor adjustment values of the N third mapping results with the M fitness output values being greater than or equal to a first fitness threshold by g generations to obtain environment factor expansion results;

screening the environmental factor expansion result according to the film performance mapping model and the environmental factor fitness function to obtain the environmental factor expected threshold, wherein the method comprises the following steps:

when the environmental factor expansion result meeting the performance index expected threshold is zero, processing the environmental factor expansion result according to the environmental factor fitness function, and constructing the environmental factor expected threshold according to the environmental factor expansion result which is greater than or equal to a second fitness threshold, wherein the second fitness threshold is greater than the first fitness threshold.

4. The method of claim 3, wherein expanding the N sets of environment factor adjustment values for the N third mapping results for which the M fitness output values are greater than or equal to the first fitness threshold by g generations, obtaining an environment factor expansion result, comprises:

constructing a high-dimensional space coordinate system according to the controllable environmental factors, wherein the dimension of the high-dimensional space coordinate system is the same as the types and the number of the controllable environmental factors, and coordinate positioning is realized by using the environmental factor adjustment values;

setting the number of single generation expansion constraint and expansion constraint windows;

traversing N groups of g-1 generation environment factors with g-1 generation fitness being greater than or equal to the first fitness threshold, and expanding in the high-dimensional space coordinate system based on the single generation expansion constraint number and the expansion constraint window to obtain an environment factor expansion result;

5. A production environment monitoring and control system for a packaging film production line, the system comprising:

the processing record acquisition module is used for acquiring film processing record data of a first production node of the film production line;

the data association analysis module is used for carrying out association analysis based on the film processing record data to obtain an association data set with an association degree analysis result being greater than or equal to an association degree threshold value, wherein the association data set comprises a film performance index and a controllable environment factor;

the optimal design execution module is used for setting a performance index expected threshold value for the film performance index, optimally designing the controllable environmental factor and generating an environmental factor expected threshold value;

the dynamic regulation and control execution module is used for dynamically regulating and controlling the environmental factor monitoring information of the first production node of the film production line according to the environmental factor expected threshold;

the system further comprises:

The association analysis execution unit is used for carrying out association analysis on the environmental factor record data based on the performance index characteristic value record data of the film performance index to acquire the controllable environmental factor;

the analysis result processing unit is used for carrying out relevance analysis on the external environment factor record data of the environment factor record data based on the performance index characteristic value record data of any one of the film performance indexes, and obtaining a second type controllable factor, wherein the second relevance analysis result is greater than or equal to a second relevance threshold, of the external environment factor, and the second type controllable factor is added into the controllable environment factor;

6. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 4 when the computer program is executed.

7. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 4.