Production process management and control method and device, electronic equipment and storage medium

Abstract

The invention provides a production process management and control method and device, electronic equipment and a storage medium, and the method comprises the steps: for each management and control index related to statistical process control, executing the following processing: collecting production monitoring data corresponding to the management and control index in real time; calculating a real-time control limit corresponding to the control index according to the production monitoring data; determining a control limit floating condition corresponding to the management and control index according to a real-time control limit and an in-application control limit corresponding to the management and control index; and according to the floating condition, determining whether the control index applies the real-time control limit and completing production process control. Statistical process control is completed by updating and optimizing the control limits of the related management and control indexes in the production process, the calculation cost of the control limits is reduced, and the control precision of the statistical process is improved at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of production process control, and in particular to a production process control method, device, electronic device and storage medium. Background Art

[0002] Control limits are an important tool in Statistical Process Control (SPC) for monitoring and evaluating the stability and quality of production processes. Control limits are boundaries set on a control chart to determine whether a production process is in a state of control.

[0003] In most SPC cases, the calculation and application of control limits can only be achieved. However, in actual application, whether the newly calculated control limits need to be applied to the control chart can only be judged by engineers based on their experience. This not only greatly increases labor costs and time costs, but also the human judgment of whether the control limits should be applied is subject to various interferences and there are certain judgment errors, which ultimately leads to a suboptimal production control process. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide at least a production process control method, device, electronic equipment and storage medium, which completes statistical process control by updating and optimizing the control limits of relevant control indicators in the production process, reduces the cost of calculating the control limits and improves the accuracy of statistical process control.

[0005] This application mainly includes the following aspects:

[0006] In the first aspect, an embodiment of the present application provides a production process control method, the method comprising: for each control indicator involved in statistical process control, performing the following processing: collecting production monitoring data corresponding to the control indicator in real time; calculating the real-time control limit corresponding to the control indicator based on the production monitoring data; determining the floating situation of the control limit corresponding to the control indicator based on the real-time control limit and the applied control limit corresponding to the control indicator; and determining whether the real-time control limit is applied to the control indicator and completing the production process control based on the floating situation.

[0007] In one possible implementation, the control limit fluctuation corresponding to each control indicator is determined in the following manner: the real-time control limit and the application control limit corresponding to the control indicator are substituted into a given control limit change ratio calculation formula to obtain the control limit change ratio corresponding to the control indicator; the control limit change ratio is compared with the given standard control limit change ratio corresponding to the control indicator, and the control limit fluctuation corresponding to the control indicator is determined based on the comparison result.

[0008] In one possible implementation, the control limit floating situation corresponding to each control indicator is determined in the following manner: if the control limit change ratio is greater than the given standard control limit change ratio, it is determined that the control limit floating of the control indicator does not meet the floating requirement; if the control limit change ratio is less than or equal to the given standard control limit change ratio, it is determined that the control limit floating of the control indicator meets the floating requirement.

[0009] In one possible implementation, whether each control indicator applies the corresponding real-time control limit and completes the production process control is determined in the following manner: if the control limit fluctuation of the control indicator meets the floating requirement, the real-time control limit is applied to replace the application control limit with the real-time control limit; the replaced application control limit is used to complete the generation process control; if the control limit fluctuation of the control indicator does not meet the floating requirement, the real-time control limit is not applied, and the application control limit continues to be used to complete the generation process control.

[0010] In one possible implementation, the change ratio of the given standard control limit corresponding to each control indicator is determined in the following manner: determining the scope of influence of the control indicator in the overall production process control; and determining the change ratio of the given standard control limit corresponding to the control indicator based on the scope of influence.

[0011] In the second aspect, an embodiment of the present application also provides a production process control device, which includes: a collection module for collecting, in real time, production monitoring data corresponding to each control indicator involved in statistical process control; a calculation module for calculating, based on the production monitoring data, the real-time control limit corresponding to each control indicator involved in statistical process control; a determination module for determining, for each control indicator involved in statistical process control, the floating situation of the control limit corresponding to the control indicator based on the real-time control limit and the applied control limit corresponding to the control indicator; a control module for determining, based on the floating situation, whether the control indicator should apply the real-time control limit and complete the production process control.

[0012] In one possible implementation, the determination module is also used to: for each control indicator involved in statistical process control: bring the real-time control limit and the application control limit corresponding to the control indicator into a given control limit change ratio calculation formula to obtain the control limit change ratio corresponding to the control indicator; compare the control limit change ratio with the given standard control limit change ratio corresponding to the control indicator, and determine the control limit fluctuation corresponding to the control indicator based on the comparison results.

[0013] In one possible embodiment, the determination module is also used to: for each control indicator involved in statistical process control: if the control limit change ratio is greater than the given standard control limit change ratio, it is determined that the control limit float of the control indicator does not meet the floating requirement; if the control limit change ratio is less than or equal to the given standard control limit change ratio, it is determined that the control limit float of the control indicator meets the floating requirement.

[0014] In a third aspect, an embodiment of the present application further provides an electronic device comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to execute the steps of the production process control method in the above-mentioned first aspect or any possible implementation method of the first aspect.

[0015] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the production process control method in the above-mentioned first aspect or any possible implementation method of the first aspect are executed.

[0016] The embodiments of the present application provide a production process control method, device, electronic device and storage medium, including: for each control indicator involved in statistical process control, performing the following processing: real-time collection of production monitoring data corresponding to the control indicator; calculation of the real-time control limit corresponding to the control indicator based on the production monitoring data; determination of the floating situation of the control limit corresponding to the control indicator based on the real-time control limit and the applied control limit corresponding to the control indicator; determination of whether the real-time control limit is applied to the control indicator and completion of production process control based on the floating situation. The present application completes statistical process control by updating and optimizing the control limits of relevant control indicators in the production process, thereby reducing the cost of calculating the control limits while improving the accuracy of statistical process control.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A flowchart of a production process control method provided by an embodiment of the present application is shown;

[0020] Figure 2 A functional module diagram of a production process control device provided in an embodiment of the present application is shown;

[0021] Figure 3 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of illustration and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts can be implemented out of sequence, and steps without logical context can be reversed or implemented simultaneously. In addition, those skilled in the art, under the guidance of the contents of this application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0023] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0024] In the SPC cases provided by existing technologies, the calculation and application of control limits can only be achieved. However, in actual applications, whether the newly calculated control limits need to be applied to the control chart can only be determined by engineers based on their experience. This not only greatly increases labor costs and time costs, but also the human judgment of whether the control limits should be applied is subject to various interferences and has certain judgment errors, resulting in a suboptimal overall production control process.

[0025] Based on this, the embodiments of the present application provide a production process control method, apparatus, electronic device, and storage medium. Statistical process control is achieved by updating and optimizing the control limits of relevant control indicators in the production process, thereby reducing the cost of calculating the control limits while improving the accuracy of statistical process control. The details are as follows:

[0026] See also Figure 1 , Figure 1The flowchart of a production process control method provided by the embodiment of the present application is shown. Figure 1 As shown, the method provided in the embodiment of the present application includes the following steps:

[0027] S100 . For each control indicator involved in statistical process control, collect production monitoring data corresponding to the control indicator in real time.

[0028] S200. For each control indicator involved in statistical process control, calculate the real-time control limit corresponding to the control indicator based on production monitoring data.

[0029] S300. For each control indicator involved in statistical process control, determine the floating condition of the control limit corresponding to the control indicator according to the real-time control limit and the application control limit corresponding to the control indicator.

[0030] S400. For each control indicator involved in statistical process control, determine whether to apply real-time control limits to the control indicator based on the floating situation and complete production process control.

[0031] In the specific implementation, in steps S100 to S400, the present application mainly focuses on the updating and optimization of the control limits corresponding to the relevant control indicators in the statistical process control. Due to the continuous updating of production data, the control limits corresponding to each control indicator in the statistical process control are also calculated in real time. A real-time control limit is determined for each calculation. The change range of the control limit of the statistical control indicator (i.e., the control limit floating situation) is used as the condition for determining whether the real-time control limit should be applied, thereby realizing the control of the entire production process. In this process, not only the cost of calculating the control limit is reduced, but also the accuracy of statistical process control is improved.

[0032] In a preferred embodiment, the control limit fluctuation corresponding to each control indicator is determined by:

[0033] Substitute the real-time control limit and the application control limit corresponding to the control indicator into the given control limit change ratio calculation formula to obtain the control limit change ratio corresponding to the control indicator, compare the control limit change ratio with the given standard control limit change ratio corresponding to the control indicator, and determine the control limit fluctuation situation corresponding to the control indicator based on the comparison results.

[0034] In a specific embodiment, the given control limit change ratio calculation formula is:

[0035]

[0036] In this formula, Change RatioIndicates the control limit change ratio. Ratio1 represents the real-time control limit, that is, the control limit after the change. Ratio2 represents the applied control limit, that is, the control limit before the change.

[0037] In this application, each control indicator corresponds to a pre-set given standard control limit change ratio. Based on the comparison result between the control limit change ratio corresponding to the control indicator and the given standard control limit change ratio, the control limit fluctuation situation corresponding to the control indicator can be further determined.

[0038] In a preferred embodiment, the change ratio of a given standard control limit corresponding to each control indicator is determined by:

[0039] Determine the scope of influence of the control indicator in the entire production process control, and based on the scope of influence, determine the change ratio of the given standard control limit corresponding to the control indicator.

[0040] In a specific embodiment, different given standard control limit change ratios need to be set according to different impact scopes. The given standard control limit change ratios can be set globally, set based on sites, products, or process routes, and set based on any combination of the above three. The wider the dimension on which the given standard control limit change ratio depends, the wider the scope of the given standard control limit change ratio. For example:

[0041] Global settings: Set the corresponding standard control limit change ratio based on the impact of the entire production process on the control indicators. The standard control limit change ratio corresponding to the control indicators set in this way involves the widest dimension, the broadest scope, and the lowest application priority.

[0042] Product + Process Route: Sets the change ratio of a given standard control limit corresponding to the control indicator in the two dimensions of product and process video. Its scope is the specified product code and process route code. It has a smaller scope and a higher application priority than the global setting.

[0043] Product + process route + site + parameters involved in the production process: Set the change ratio of the given standard control limit corresponding to the management and control indicators under the dimensions of product + process route + site + parameters involved in the production process. It has the smallest scope and the highest application priority.

[0044] Management and control indicators include but are not limited to measurement indicators (Measurement), failure indicators (Failure) and observation indicators (Observation).

[0045] In a preferred embodiment, step S300 includes:

[0046] For each control indicator: if the control limit change ratio is greater than the given standard control limit change ratio, it is determined that the control limit floating of the control indicator does not meet the floating requirement; if the control limit change ratio is less than or equal to the given standard control limit change ratio, it is determined that the control limit floating of the control indicator meets the floating requirement.

[0047] In a preferred embodiment, step S400 includes:

[0048] For each control indicator: if the control limit fluctuation of the control indicator meets the floating requirements, the real-time control limit is applied to replace the applied control limit with the real-time control limit, and the replaced applied control limit is used to complete the generated process control; if the control limit fluctuation of the control indicator does not meet the floating requirements, the real-time control limit is not applied, and the applied control limit is continued to be used to complete the generated process control.

[0049] Based on the same application concept, the embodiments of the present application also provide a production process control device corresponding to the production process control method provided in the above embodiments. Since the principle of solving the problem by the device in the embodiments of the present application is similar to the production process control method in the above embodiments of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0050] See also Figure 2 , Figure 2 The functional module diagram of a production process control device provided by an embodiment of the present application is shown. Figure 2 As shown, the device includes:

[0051] The collection module 500 is used to collect production monitoring data corresponding to each control indicator involved in statistical process control in real time;

[0052] A calculation module 510 is used to calculate the real-time control limit corresponding to each control indicator involved in the statistical process control based on the production monitoring data;

[0053] A determination module 520 is configured to determine, for each control indicator involved in the statistical process control, a control limit fluctuation corresponding to the control indicator based on the real-time control limit and the application control limit corresponding to the control indicator;

[0054] The control module 530 is used to determine whether to apply real-time control limits to each control indicator involved in statistical process control based on the floating situation and complete production process control.

[0055] Preferably, the determination module 520 is also used for: for each control indicator involved in statistical process control: the real-time control limit and the application control limit corresponding to the control indicator are substituted into the given control limit change ratio calculation formula to obtain the control limit change ratio corresponding to the control indicator; the control limit change ratio is compared with the given standard control limit change ratio corresponding to the control indicator, and the control limit fluctuation situation corresponding to the control indicator is determined according to the comparison result.

[0056] Preferably, the determination module 520 is also used for: for each control indicator involved in statistical process control: if the control limit change ratio is greater than the given standard control limit change ratio, it is determined that the control limit float of the control indicator does not meet the floating requirement; if the control limit change ratio is less than or equal to the given standard control limit change ratio, it is determined that the control limit float of the control indicator meets the floating requirement.

[0057] Based on the same application idea, please refer to Figure 3 , Figure 3 The following is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device 600 includes a processor 610, a memory 620, and a bus 630. The memory 620 stores machine-readable instructions executable by the processor 610. When the electronic device 600 is in operation, the processor 610 and the memory 620 communicate via the bus 630. When the processor 610 is in operation, the machine-readable instructions execute the steps of the production process control method provided in any of the above embodiments.

[0058] Based on the same application concept, an embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is run by a processor, the steps of the production process control method provided in the above embodiment are executed.

[0059] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0060] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0061] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0062] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0063] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A production process control method, characterized in that: The method comprises: For each control indicator involved in statistical process control, perform the following processing: Collect production monitoring data corresponding to the control indicator in real time; Calculate the real-time control limit corresponding to the control indicator according to the production monitoring data; Determine the floating situation of the control limit corresponding to the control indicator according to the real-time control limit and the applied control limit corresponding to the control indicator; According to the floating situation, determine whether the control indicator applies the real-time control limit and completes the production process control.

2. The method according to claim 1, characterized in that Determine the control limit fluctuation for each control indicator by: Substitute the real-time control limit and the applied control limit corresponding to the control index into the given control limit change ratio calculation formula to obtain the control limit change ratio corresponding to the control index; The control limit change ratio is compared with the given standard control limit change ratio corresponding to the control index, and the control limit fluctuation corresponding to the control index is determined according to the comparison result.

3. The method according to claim 2, characterized in that Determine the control limit fluctuation for each control indicator by: If the control limit change ratio is greater than the given standard control limit change ratio, it is determined that the control limit fluctuation of the control indicator does not meet the fluctuation requirement; If the control limit change ratio is less than or equal to the given standard control limit change ratio, it is determined that the control limit floating of the management and control indicator meets the floating requirement.

4. The method according to claim 3, characterized in that Determine whether each control indicator applies the corresponding real-time control limit and completes the production process control through the following methods: If the control limit fluctuation of the control indicator meets the fluctuation requirement, the real-time control limit is applied to replace the applied control limit with the real-time control limit; Use the replaced in-application control limits to complete the generation process control; If the control limit fluctuation of the control indicator does not meet the floating requirements, the real-time control limit will not be applied, and the applied control limit will continue to be used to complete the generated process control.

5. The method according to claim 2, characterized in that: Determine the change ratio of the given standard control limit corresponding to each control indicator by: Determine the impact of the control indicator on the entire production process control; According to the impact range, determine the change ratio of the given standard control limit corresponding to the management and control indicator.

6. A production process control device, characterized in that: The device comprises: The collection module is used to collect the production monitoring data corresponding to each control indicator involved in the statistical process control in real time; A calculation module, for calculating, for each control indicator involved in the statistical process control, a real-time control limit corresponding to the control indicator according to the production monitoring data; A determination module is used to determine the floating condition of the control limit corresponding to each control indicator involved in the statistical process control according to the real-time control limit and the application control limit corresponding to the control indicator; The control module is used to determine, for each control indicator involved in the statistical process control, whether the control indicator should apply the real-time control limit and complete the production process control according to the floating situation.

7. The device according to claim 6, characterized in that The determining module is also used for: For each control indicator involved in statistical process control: Substitute the real-time control limit and the applied control limit corresponding to the control index into the given control limit change ratio calculation formula to obtain the control limit change ratio corresponding to the control index; The control limit change ratio is compared with the given standard control limit change ratio corresponding to the control index, and the control limit fluctuation corresponding to the control index is determined according to the comparison result.

8. The device according to claim 7, characterized in that The determining module is also used for: For each control indicator involved in statistical process control: If the control limit change ratio is greater than the given standard control limit change ratio, it is determined that the control limit fluctuation of the control indicator does not meet the fluctuation requirement; If the control limit change ratio is less than or equal to the given standard control limit change ratio, it is determined that the control limit floating of the management and control indicator meets the floating requirement.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to execute the steps of the production process control method as described in any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the production process control method according to any one of claims 1 to 5 are executed.

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