CPMPS manufacturing resource servitization reconstruction method and system based on reconstruction opportunity driving

Abstract

The invention discloses a CPMPS manufacturing resource servitization reconstruction method and system based on reconstruction opportunity driving, and is applied to the technical field of intelligent manufacturing, and the method comprises the steps: packaging manufacturing resources into a modularized manufacturing resource service directory; determining an optimal reconstruction time point of the modular production system by adopting a reconstruction opportunity triggering strategy; performing manufacturing resource service matching on the modular production system based on the manufacturing resource service directory and the optimal reconstruction time point to obtain a plurality of reconstruction schemes; and selecting an optimal reconstruction scheme from the plurality of reconstruction schemes, and carrying out implementation and simulation verification on the optimal reconstruction scheme.

Description

Technical Field

[0001] The present invention relates to the field of intelligent manufacturing technology, and in particular to a CPMPS manufacturing resource service-oriented reconstruction method and system driven by reconstruction timing. Background Art

[0002] In recent years, with the large-scale application of new information and communication technologies such as the Internet of Things and 5G, intelligent features such as decoupling and decentralized control of manufacturing resources have been realized, and the modularization and information-physical integration characteristics of production systems have become more prominent. The intelligent manufacturing model characterized by information-physical integration has become the main direction of future manufacturing development. Under the intelligent manufacturing model, the Modular Production System (MPS) meets flexible production needs through dynamic reconstruction based on intelligent features such as decoupling and decentralized control of modular resources. For example, Audi Automobile Company of Germany pointed out in its smart factory planning strategy report that the traditional assembly line production system will be replaced by a modular factory that inherits the "dynamic modular production" technology of vertical integration and product customization production, and ultimately establishes a highly flexible personalized product and digital production model for the enterprise through modular dynamic reconstruction. At present, the traditional reconstruction model with physical systems as the core can no longer meet the MPS reconstruction requirements under new features, and the dynamic reconstruction of MPS integrating information features has become the research focus of the industry. In the face of the dynamic reconstruction requirements of MPS, not only advanced manufacturing and information and communication technologies are needed as a basis, but also a systematic reconstruction method is needed.

[0003] In order to design a suitable manufacturing resource reconstruction plan, this application takes the flexibility improvement of the modular production system under customized production mode (CPPMPS) as the core goal, and focuses on the problem of integrated modeling, reconstruction and simulation verification of CPMPS, and proposes a CPMPS manufacturing resource service-oriented reconstruction method and system based on reconstruction timing. Summary of the invention

[0004] The purpose of this application is to provide a CPMPS manufacturing resource service-oriented reconstruction method and system driven by reconstruction timing, aiming to solve the above-mentioned problems.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] The present application provides a CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction opportunity drive, including:

[0007] Encapsulate manufacturing resources into a modular manufacturing resource service catalog;

[0008] The optimal reconstruction time point of modular production system is determined by using reconstruction timing trigger strategy;

[0009] Based on the manufacturing resource service catalog and the optimal reconstruction time point, performing manufacturing resource service matching on the modular production system to obtain several reconstruction schemes;

[0010] An optimal reconstruction scheme is selected from the plurality of reconstruction schemes, and the optimal reconstruction scheme is implemented and verified by simulation.

[0011] Furthermore, in the step of using the reconstruction timing trigger strategy to determine the optimal reconstruction time point of the modular production system, the following steps are specifically included:

[0012] The reconstruction timing trigger strategy includes: event triggering, trend prediction, processing functions, production capacity and reconstruction cost of the modular production system;

[0013] The event trigger is a stress response to a corresponding event in the modular production system;

[0014] The trend prediction detects and judges the service performance of the modular production system and predicts the reconstruction time point of the modular production system; wherein the time interval of the regular detection is dynamically adjusted using a preset algorithm;

[0015] The processing function, production capacity and reconstruction cost of the modular production system are specifically as follows: the processing function and production capacity of the modular production system are regarded as the complexity of the operation of the modular production system, and the complexity of the modular production system is evaluated by using the information entropy measurement method; based on the reconstruction cost, the cusp mutation model in the mutation theory is used to judge the reconstruction timing of the pre-built modular production system complexity model, and determine the optimal reconstruction time point of the modular production system.

[0016] Furthermore, in the step of matching the manufacturing resource services of the modular production system based on the manufacturing resource service catalog and the optimal reconstruction time point to obtain a plurality of reconstruction schemes, the following steps are specifically included:

[0017] Taking the initial manufacturing resource configuration of the modular production system as a reference point;

[0018] Retrieving manufacturing resource services for the modular production system through the manufacturing resource service directory;

[0019] The corresponding matching mechanism is used to perform logic configuration and semantic analysis, and the modular production system is analyzed according to the manufacturing resource service directory and the reference point to obtain several reconstruction schemes of the modular production system.

[0020] Furthermore, the step of selecting the best reconstruction scheme from the plurality of reconstruction schemes and implementing and simulating the best reconstruction scheme specifically includes the following steps:

[0021] According to the optimal reconstruction scheme, the modular production system is reconstructed in the physical space and the information space; the reconstruction of the modular production system includes: reconstruction at the manufacturing resource level, reconstruction at the unit level, and reconstruction at the system level;

[0022] After the reconstruction, data modeling is performed on the modular production system, including adding, modifying and deleting manufacturing resources.

[0023] Furthermore, the manufacturing resource level is reconstructed as follows:

[0024] Evaluate the production capacity of the modular production system. If it meets the preset new production task requirements, perform manufacturing resource service matching based on the initial manufacturing resource configuration to obtain a corresponding reconstruction plan.

[0025] Conduct reconstruction evaluation on the reconstruction plan after matching manufacturing resource services to determine whether the current reconstructed modular production system needs system reconstruction;

[0026] If the evaluation result shows that the unit-level reconstruction is needed, the modular production system unit-level reconstruction is carried out; if the evaluation result shows that the unit-level reconstruction is not needed, the manufacturing resource-level reconstruction is implemented;

[0027] Based on the pre-built manufacturing resource model library of the modular production system, a virtual production system of the modular production system is constructed in the information space; based on the digital simulation platform, the virtual production system is simulated and verified;

[0028] If the virtual production system described in the simulation results runs normally, the current reconstruction plan is implemented, and the corresponding manufacturing resource directory is adjusted and the corresponding manufacturing resource model library is updated to complete the reconstruction of the manufacturing resource level of the modular production system; if the reconstructed manufacturing resource service in the simulation results cannot correctly execute the preset production tasks, the digital simulation platform is used for simulation based on manual adjustments, and the problem is re-examined until the reconstructed manufacturing resource service in the simulation results runs normally.

[0029] Furthermore, the unit level is reconstructed as follows:

[0030] When the reconstruction of the manufacturing resource level does not meet the processing functions and production capabilities required by the preset new production tasks, the modular production system is reconstructed at the unit level;

[0031] The unit-level reconstruction is performed based on the manufacturing resource-level reconstruction.

[0032] Furthermore, the system-level reconstruction is as follows:

[0033] Based on the unit-level reconstruction, the system-level reconstruction is carried out;

[0034] The reconstruction of the system level is the highest level reconstruction, and when the reconstruction of the system level is completed, the reconstruction of the modular production system is completed.

[0035] This application proposes a system for a CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction opportunity drive, including:

[0036] Packaging module: packaging manufacturing resources into a modular manufacturing resource service catalog;

[0037] Analysis module: Use the reconstruction timing trigger strategy to determine the optimal reconstruction time point of the modular production system;

[0038] Reconstruction configuration module: based on the manufacturing resource service catalog and the optimal reconstruction time point, the modular production system is matched with manufacturing resource services to obtain several reconstruction schemes;

[0039] Implementation module: selects the best reconstruction scheme from the plurality of reconstruction schemes, and implements and simulates the best reconstruction scheme.

[0040] The present application provides a device, which includes a processor and a memory coupled to the processor, wherein the memory stores program instructions for implementing a CPMPS manufacturing resource service-oriented reconstruction method driven by reconstruction timing; and the processor is used to execute the program instructions stored in the memory to implement the CPMPS manufacturing resource service-oriented reconstruction driven by reconstruction timing.

[0041] The present application provides a storage medium storing program instructions executable by a processor, wherein the program instructions are used to execute a CPMPS manufacturing resource service-oriented reconstruction method driven by reconstruction timing.

[0042] The present application provides a CPMPS manufacturing resource service-oriented reconstruction method and system based on reconstruction opportunity drive, which has the following beneficial effects:

[0043] (1) By dynamically calling manufacturing resources and timely reconfiguring, the production system can quickly respond to market demand. At the same time, flexible manufacturing resource configuration enables the modular production system to quickly switch between different production needs, thereby improving production efficiency.

[0044] (2) Unit-level reconstruction provides a basis for system-level reconstruction, reducing the complexity and time consumption of system-level reconstruction; by reducing the reconstruction evaluation process, the reconstruction cost is further reduced and the reconstruction efficiency is improved;

[0045] (3) The reconstruction process proposed in this application promotes the innovation and application of manufacturing technology and ensures the improvement of the overall performance of the production system through the coordinated reconstruction of physical space and information space. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a flow chart of a CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive according to Example 1 of the present application;

[0047] Figure 2 This is a schematic diagram of the reconstruction process of the manufacturing resource level in the modular production system of Example 1 of the present application;

[0048] Figure 3 This is a structural diagram of a CPMPS manufacturing resource service-oriented reconstruction system driven by reconstruction timing according to Example 2 of the present application;

[0049] Figure 4 This is a schematic diagram of the device structure of Example 3 of the present application;

[0050] Figure 5 This is a schematic diagram of the storage medium structure of Example 4 of the present application. DETAILED DESCRIPTION

[0051] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0052] The following is an analysis of the solutions in the prior art in combination with related technologies.

[0053] In the modular production system (CPMPS) of customized production mode, various manufacturing resources expose their production operation functions and production capabilities in the system in the form of production services, and encapsulate them into a modular service catalog as manufacturing services that can be called by the system. CPMPS acts as a service provider by encapsulating the physical operations of manufacturing resources as services. For example, manufacturing execution resources (such as servo motors) in CPS intelligent manufacturing resources have transmission functions, and perception resources (such as RFID sensors) have perception functions. By encapsulating these manufacturing resources as manufacturing services and publishing them in the entire production system and storing them in the system model library, the system can use the corresponding matching mechanism to access and dynamically call related manufacturing resource services in real time, thereby achieving manufacturing resource service matching that matches the processing functions of the production system with the capacity requirements. Manufacturing services can also provide result aggregation by combining manufacturing resource sub-services. For example, a manufacturing resource robot can be attached with CPS intelligent manufacturing resources such as robot grippers and machine vision and basic physical manufacturing resources to realize the aggregation service form of manufacturing resources. With the assistance of reconstruction timing drive, relevant reconstruction decision optimization algorithms and expert knowledge base, the optimal reconstruction solution of CPMPS can be constructed. The reconstruction scheme is optimized at three levels: manufacturing resource level reconstruction optimization, unit level reconstruction optimization and system level reconstruction optimization.

[0054] CPMPS is a flexible manufacturing system that can respond quickly to market demand. By adding, modifying, deleting and other operations on modular resource objects, it can quickly reconstruct the system's processing functions and production capabilities, thereby realizing the reconstruction of the system structure, system hardware and system software. This is the most direct manifestation of the high flexibility of the CPMPS system. However, despite the high flexibility of the system, if the system fails to be reconstructed at the right time and in the right way, it may cause the system to be reconstructed too frequently or rarely, which will directly increase the reconstruction cost of the production system and cause loss costs in other aspects. Therefore, it is critical to determine when to reconstruct the CPMPS, which can not only reduce the reconstruction cost of the production system, but also reduce the production losses caused by the reconstruction. By choosing the right reconstruction timing, it is possible to maximize the system benefits while ensuring that the production system remains highly flexible on the basis of efficiency and economy.

[0055] The steps to reconfigure manufacturing resources to meet the production requirements of new orders are as follows: first, determine the current configuration, which refers to the current manufacturing resource configuration of CPMPS; second, determine the manufacturing resource service catalog, which is the various types of manufacturing resources that are serviced in CPMPS and is provided to CPMPS for manufacturing resource service retrieval; then perform CPMPS manufacturing resource service matching. In the process of manufacturing resource service matching, a large number of reconfiguration schemes will be generated, some of which are not technically applicable, such as manufacturing resources that cannot be installed due to the lack of implementation technical conditions at this stage.

[0056] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0057] Example 1

[0058] See also Figure 1 , is a flow chart of a CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive according to Example 1 of the present application; the steps include:

[0059] S1: Encapsulate manufacturing resources into a modular manufacturing resource service catalog.

[0060] In this embodiment, various types of manufacturing resources in the modular production system (CPMPS), such as manufacturing execution resources, perception resources, etc., are encapsulated into a modular manufacturing resource service directory to facilitate subsequent dynamic calls.

[0061] S2: Use the reconstruction timing trigger strategy to determine the optimal reconstruction time point of the modular production system.

[0062] In this embodiment, three different reconstruction timing trigger strategies are used to make decisions on the best reconstruction timing of the production system, namely event triggering, trend prediction, processing functions, production capacity and reconstruction cost of the modular production system; the three reconstruction decisions are described in detail as follows:

[0063] Event triggering is a stress response to corresponding events in a modular production system; for example, emergency job insertion, upper-level management's requirements for production system reconstruction, etc. Good planning and design of event triggering can play an important supporting role in the stability of the production system.

[0064] Trend prediction detects and judges the service performance of the modular production system and predicts the reconstruction time point of the modular production system; the time interval of regular detection uses preset algorithms, such as machine learning and other intelligent algorithms for dynamic adjustment to better adapt to the dynamic changes of the production system. For example, machine learning algorithms are used to predict the changing trend of the service performance of the modular production system, including big data-driven manufacturing resource health status prediction, so as to judge the performance of the current modular production system and determine the optimal reconstruction time point of the modular production system, so as to implement the reconstruction of the modular production system as soon as possible, reduce the impact on production, and reduce the reconstruction cost of the system.

[0065] The processing function, production capacity and reconstruction cost of the modular production system are as follows: the processing function and production capacity of the modular production system are used as the measurement objects of the operation complexity of the modular production system, and the complexity of the modular production system is evaluated by the information entropy measurement method. Based on the reconstruction cost, the cusp mutation model in the mutation theory is used to judge the reconstruction timing of the pre-built modular production system complexity model, and determine the optimal reconstruction time point of the modular production system.

[0066] S3: Based on the manufacturing resource service catalog and the optimal reconstruction time point, manufacturing resource service matching is performed on the modular production system to obtain several reconstruction schemes.

[0067] In this embodiment, after determining the optimal reconstruction time point, the manufacturing resources are reconfigured to meet the production requirements of the new order. First, the initial manufacturing resource configuration of the modular production system is used as the reference point; the manufacturing resource service of the modular production system is retrieved through the manufacturing resource service directory. Then the modular production system is matched with manufacturing resource services. In the process of matching manufacturing resource services, a large number of reconstruction configuration schemes will be produced, some of which are not technically applicable, such as manufacturing resources that cannot be installed due to the lack of implementation technical conditions at this stage. In order to reduce the search space scale of the reconfigurable solution, the corresponding matching mechanism is used for logical configuration and semantic analysis, and the modular production system is analyzed according to the manufacturing resource service directory and the reference point to obtain several reconstruction schemes of the modular production system, and the feasibility of each reconstruction scheme is determined. Finally, through the above-mentioned manufacturing resource service matching, different reconstruction configuration schemes are presented for the modular production system, and the changes in the manufacturing resource service combination, the changes in the manufacturing resource service behavior, and the changes in the manufacturing resource service directory are realized.

[0068] S4: Selecting an optimal reconstruction scheme from the plurality of reconstruction schemes, and implementing and simulating the optimal reconstruction scheme.

[0069] In this embodiment, after determining that the modular production system realizes the reconfiguration of manufacturing resources and proposing several reconfigurable configuration schemes, it is necessary to select the optimal reconfiguration scheme and finally implement it. First, the reconstruction schemes are evaluated, screened and optimized based on the expert knowledge base and related optimization algorithms, digital simulation and other technical means, and finally an optimal reconstruction scheme is selected; according to the optimal reconstruction scheme, the modular production system is reconstructed in the physical space, mainly including CPS address loading, communication configuration, protocol adaptation, hardware connection, etc., to achieve the normal operation of the production line mechanical transmission, electrification function and digital control function; secondly, the production system is reconstructed in the information space, mainly including the process route configuration reconstruction and the operation control configuration reconstruction; among them, the process route configuration reconstruction mainly includes the reconstruction of the process route according to the production process and process requirements, and the process route is associated with production factor information such as tools, materials, process documents, quality parameters, production specifications, etc.; the operation control configuration reconstruction is mainly the reconstruction of the manufacturing execution software and other control software in the production operation process; finally, after the reconstruction, the production system needs to be data modeled, including the virtualization of added, modified and deleted manufacturing resources, to realize the update of the manufacturing resource model library, and provide model support for the next reconstruction of the modular production system.

[0070] After determining the reconstruction strategy and reconstruction mechanism, the next step is to carry out the complete reconstruction step. Specifically, it is the interrelated and interactive activities that transform inputs into outputs. The reconstruction of the modular production system is the process of transforming customized production tasks into a highly flexible modular production system that meets the requirements through the operation of the production system.

[0071] This application divides the reconstruction of the modular production system into two situations. One reconstruction situation is that there are new production and manufacturing task requirements, and the current modular production system configuration meets the requirements of the new task for the system manufacturing capability and production capacity, but the manufacturing resources in the existing physical space modular production system need to be rearranged and combined, including the configuration of the modular production system also needs to be reconstructed. In addition, there is a special system reconstruction situation, in which the modular production system does not exist initially, that is, the reconfiguration starts at the initialization, rather than the reconstruction based on the original modular production system. This reconstruction process is more complicated. Another reconstruction situation is that the current modular production system configuration does not meet the system manufacturing capability requirements of the new task, and a large degree of system reconstruction process is required to meet the production requirements. Based on the above reconstruction situations of the modular production system, according to the reconstruction strategy of the modular production system, this application divides the reconstruction steps of the modular production system into reconstruction at the manufacturing resource level, reconstruction at the unit level, and reconstruction at the system level. The detailed description of each reconstruction is as follows:

[0072] See also Figure 2, which is a schematic diagram of the reconstruction process of the manufacturing resource level in the modular production system of Example 1 of the present application. First, determine whether there is a production system at present. If there is no production system, the reconstruction of the modular production system starts completely from scratch. This process is relatively complicated to build production. Since this study focuses on the reconstruction activities based on the original production system, this process belongs to the construction of the production system and does not belong to the scope of system reconstruction research. Therefore, this application does not consider this special case for the time being. If there is a production system, the production capacity of the modular production system is evaluated. If it meets the preset new production task requirements, the manufacturing resource service is matched on the basis of the initial manufacturing resource configuration to obtain the corresponding reconstruction plan. The reconstruction plan after the manufacturing resource service matching is reconstructed and evaluated to determine whether the current reconstructed modular production system requires system reconstruction; if the evaluation result is that unit-level reconstruction is required, the modular production system unit-level reconstruction is transferred to; if the evaluation result is that unit-level reconstruction is not required, the reconstruction of the manufacturing resource level is implemented.

[0073] Based on the pre-built manufacturing resource model library of the modular production system, a virtual production system of the modular production system is constructed in the information space; based on the digital simulation platform, the constructed CPMPS virtual production system is simulated to verify the rationality of the reconstruction plan, provide a corresponding basis for the implementation of the reconstruction plan and solve the hidden problems in advance, avoid problems during the initial operation after the physical space of the modular production system is reconstructed, reduce the debugging time of the modular production system after reconstruction, so that the modular production system can respond to market demand faster and improve the flexibility of the production system. If the virtual production system described in the simulation results runs normally, confirming the rationality of the reconstruction plan, the current reconstruction plan is implemented, and the corresponding manufacturing resource directory is adjusted and the corresponding manufacturing resource model library is updated to complete the reconstruction of the manufacturing resource level of the modular production system; if the reconstructed manufacturing resource service in the simulation results cannot correctly execute the preset production task, the digital simulation platform is used for simulation based on manual adjustment to re-check the problem until the reconstructed manufacturing resource service in the simulation results runs normally.

[0074] The unit-level reconstruction is: when the manufacturing resource-level reconstruction does not meet the processing functions and production capacity required by the preset new production task, the unit-level reconstruction will be carried out after the manufacturing resource-level reconstruction is completed. The unit-level reconstruction is basically similar to the manufacturing resource-level reconstruction process. The difference is that the unit-level reconstruction is based on the manufacturing resource-level reconstruction, and there is no process step to determine whether the original system exists. After the initial generation of the unit-level reconstruction plan based on the manufacturing resource service catalog, the corresponding expert knowledge or rules are used to evaluate the system reconstruction to determine whether the unit-level reconstruction meets the system processing functions and production capacity requirements of the new production task. If the evaluation result is not satisfied, a more detailed system-level reconstruction is carried out after the unit-level reconstruction. If the evaluation result is satisfied, the digital simulation platform performs simulation to verify the reconstruction plan. The specific process is similar to the manufacturing resource-level reconstruction process, so it will not be repeated here. Through the above system reconstruction process, the CPMPS unit-level reconstruction is completed.

[0075] The reconstruction of the system level is as follows: the reconstruction of the manufacturing resource level and the reconstruction of the unit level jointly lay the foundation for the reconstruction of the system level. The reconstruction process of the system level is similar to the reconstruction process of the manufacturing resource level and the unit level. The difference is that the system reconstruction evaluation process is further reduced on the basis of the unit level reconstruction. The system level reconstruction is the highest level reconstruction. Through the above system reconstruction process, the reconstruction of the system level is completed, and the reconstruction of the modular production system is completed.

[0076] To summarize, Example 1 of the present application lays a solid foundation for subsequent steps by determining the initial manufacturing resource configuration of the modular production system; constructs a manufacturing resource service catalog to achieve standardization, modularization and service-oriented manufacturing resources, which facilitates rapid retrieval and calling of the system; on this basis, adopts an appropriate matching mechanism, combines logical configuration and semantic reasoning, accurately matches manufacturing resource services, and generates multiple feasible reconstruction schemes; the present application not only improves the response speed and flexibility of the modular production system, but also optimizes resource configuration, reduces reconstruction costs, and provides a strong guarantee for efficient production under the customized production model.

[0077] Example 2

[0078] See also Figure 3 , is a structural diagram of a CPMPS manufacturing resource service-oriented reconstruction system driven by reconstruction timing according to Example 2 of the present application; the specific contents include:

[0079] Packaging module: packaging manufacturing resources into a modular manufacturing resource service catalog;

[0080] Analysis module: Use the reconstruction timing trigger strategy to determine the optimal reconstruction time point of the modular production system;

[0081] Reconstruction configuration module: based on the manufacturing resource service catalog and the optimal reconstruction time point, the modular production system is matched with manufacturing resource services to obtain several reconstruction schemes;

[0082] Implementation module: selects the best reconstruction scheme from the plurality of reconstruction schemes, and implements and simulates the best reconstruction scheme.

[0083] Example 3

[0084] See also Figure 4 , is a schematic diagram of the device structure of Embodiment 3 of the present application. The device 50 includes a processor 51 and a memory 52 coupled to the processor 51 .

[0085] The memory 52 stores program instructions for implementing the above-mentioned CPMPS manufacturing resource service-oriented reconfiguration method driven by reconfiguration timing.

[0086] The processor 51 is used to execute program instructions stored in the memory 52 to achieve the service-oriented reconstruction of CPMPS manufacturing resources based on reconstruction timing.

[0087] The processor 51 may also be referred to as a CPU (Central Processing Unit).

[0088] The processor 51 may be an integrated circuit chip with signal processing capabilities. The processor 51 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0089] Example 4

[0090] See also Figure 5 , which is a schematic diagram of the structure of the storage medium of Example 4 of the present application. The storage medium of the embodiment of the present application stores a program file 61 that can implement all the above methods, wherein the program file 61 can be stored in the above storage medium in the form of a software product, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of each embodiment of the present invention. 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, or a computer, a server, a mobile phone, a tablet, and other devices.

[0091] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, device, article or method including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, device, article or method. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, device, article or method including the element.

[0092] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

[0093] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

[0094] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A CPMPS manufacturing resource service-oriented reconstruction method driven by reconstruction timing, characterized in that: include: Encapsulate manufacturing resources into a modular manufacturing resource service catalog; The optimal reconstruction time point of modular production system is determined by using reconstruction timing trigger strategy; Based on the manufacturing resource service catalog and the optimal reconstruction time point, performing manufacturing resource service matching on the modular production system to obtain several reconstruction schemes; An optimal reconstruction scheme is selected from the plurality of reconstruction schemes, and the optimal reconstruction scheme is implemented and verified by simulation.

2. The CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive according to claim 1 is characterized in that: The step of using the reconstruction timing trigger strategy to determine the optimal reconstruction time point of the modular production system specifically includes the following steps: The reconstruction timing trigger strategy includes: event triggering, trend prediction, processing functions, production capacity and reconstruction cost of the modular production system; The event trigger is a stress response to a corresponding event in the modular production system; The trend prediction detects and judges the service performance of the modular production system and predicts the reconstruction time point of the modular production system; wherein the time interval of the regular detection is dynamically adjusted using a preset algorithm; The processing function, production capacity and reconstruction cost of the modular production system are specifically as follows: the processing function and production capacity of the modular production system are regarded as the complexity of the operation of the modular production system, and the complexity of the modular production system is evaluated by using the information entropy measurement method; based on the reconstruction cost, the cusp mutation model in the mutation theory is used to judge the reconstruction timing of the pre-built modular production system complexity model, and determine the optimal reconstruction time point of the modular production system.

3. The CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive according to claim 1 is characterized in that: The step of matching the manufacturing resource services of the modular production system based on the manufacturing resource service catalog and the optimal reconstruction time point to obtain a plurality of reconstruction schemes specifically includes the following steps: Taking the initial manufacturing resource configuration of the modular production system as a reference point; Retrieving manufacturing resource services for the modular production system through the manufacturing resource service directory; The corresponding matching mechanism is used to perform logic configuration and semantic analysis, and the modular production system is analyzed according to the manufacturing resource service directory and the reference point to obtain several reconstruction schemes of the modular production system.

4. The CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive according to claim 1 is characterized in that: The step of selecting the best reconstruction scheme from the plurality of reconstruction schemes and implementing and simulating the best reconstruction scheme specifically includes the following steps: According to the optimal reconstruction scheme, the modular production system is reconstructed in the physical space and the information space; the reconstruction of the modular production system includes: reconstruction at the manufacturing resource level, reconstruction at the unit level, and reconstruction at the system level; After the reconstruction, data modeling is performed on the modular production system, including adding, modifying and deleting manufacturing resources.

5. The CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive according to claim 4 is characterized in that: The reconstruction of the manufacturing resource hierarchy is: Evaluate the production capacity of the modular production system. If it meets the preset new production task requirements, perform manufacturing resource service matching based on the initial manufacturing resource configuration to obtain a corresponding reconstruction plan. Conduct reconstruction evaluation on the reconstruction plan after matching manufacturing resource services to determine whether the current reconstructed modular production system needs system reconstruction; If the evaluation result shows that the unit-level reconstruction is needed, the modular production system unit-level reconstruction is carried out; if the evaluation result shows that the unit-level reconstruction is not needed, the manufacturing resource-level reconstruction is implemented; Based on the pre-built manufacturing resource model library of modular production system, a virtual production system of modular production system is constructed in the information space; Based on the digital simulation platform, simulating and verifying the virtual production system; If the virtual production system described in the simulation results runs normally, the current reconstruction plan is implemented, and the corresponding manufacturing resource directory is adjusted and the corresponding manufacturing resource model library is updated to complete the reconstruction of the manufacturing resource level of the modular production system; if the reconstructed manufacturing resource service in the simulation results cannot correctly execute the preset production tasks, the digital simulation platform is used for simulation based on manual adjustments, and the problem is re-examined until the reconstructed manufacturing resource service in the simulation results runs normally.

6. The CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive according to claim 4 is characterized in that: The unit level reconstruction is: When the reconstruction of the manufacturing resource level does not meet the processing functions and production capabilities required by the preset new production tasks, the modular production system is reconstructed at the unit level; The unit-level reconstruction is performed based on the manufacturing resource-level reconstruction.

7. The CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction opportunity drive according to claim 4 is characterized in that: The system-level reconstruction is: Based on the unit-level reconstruction, the system-level reconstruction is carried out; The reconstruction of the system level is the highest level reconstruction, and when the reconstruction of the system level is completed, the reconstruction of the modular production system is completed.

8. A system for the CPMPS manufacturing resource service-oriented reconfiguration method based on reconfiguration timing drive according to any one of claims 1 to 7, characterized in that: include: Packaging module: packaging manufacturing resources into a modular manufacturing resource service catalog; Analysis module: Use the reconstruction timing trigger strategy to determine the optimal reconstruction time point of the modular production system; Reconstruction configuration module: based on the manufacturing resource service catalog and the optimal reconstruction time point, the modular production system is matched with manufacturing resource services to obtain several reconstruction schemes; Implementation module: selects the best reconstruction scheme from the plurality of reconstruction schemes, and implements and simulates the best reconstruction scheme.

9. A device, characterized in that: The device includes a processor and a memory coupled to the processor, wherein the memory stores program instructions for implementing the CPMPS manufacturing resource service-oriented reconstruction method based on reconstruction timing drive as described in any one of claims 1-7; and the processor is used to execute the program instructions stored in the memory to implement the CPMPS manufacturing resource service-oriented reconstruction based on reconstruction timing drive.

10. A storage medium, characterized in that: The method stores program instructions executable by a processor, wherein the program instructions are used to execute the CPMPS manufacturing resource service-oriented reconstruction method driven by reconstruction timing as described in any one of claims 1 to 7.

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