Product bill of material construction method and related equipment

Abstract

The invention relates to the field of information technology application, and discloses a method for constructing a product bill of materials and related equipment, and the method comprises the steps: constructing a unified product bill of materials for product systems of different specifications; correspondingly generating a proxy bill of material of the product according to the unified bill of material of the product; the method comprises the following steps: establishing an actual product bill of material, establishing a mapping relation with a product uniform bill of material according to the actual product bill of material, associating with a product agent bill of material based on the mapping relation to construct the product bill of material, and simplifying and uniformly managing the product bill of material with a complex structure through the product uniform bill of material. The processing process of each product bill of material is simplified, the automatic processing of the product bill of material is realized, and the product bill of material management is effectively carried out on different materials in the whole life cycle.

Description

Technical Field

[0001] The present invention relates to the field of information technology applications, and in particular to a method for constructing a product bill of materials and related equipment. Background Art

[0002] Bill of Materials (BOM) is widely used in the information system of manufacturing enterprises. BOM data is needed as business support in business processes such as product quotation, design, process, procurement, planning, material management, packaging, installation, and service. Different versions of BOM and their conversion forms are derived from this, such as engineering BOM (eBOM), process BOM, manufacturing BOM (mBOM), procurement BOM (pBOM), packaging BOM, installation BOM, service BOM, and cost BOM, etc., to meet different business needs. The accuracy, standardization, and timeliness of conversion between different forms and versions of BOM play an important role in the efficient and accurate application of business systems. However, the number of BOM lines for complex products is large, and the conversion rules are complex due to the differences in manufacturing conditions, business rules, product structure characteristics, etc. of each manufacturing enterprise. It often requires manual participation in processing (such as process), which is labor-intensive and takes a long time to process.

[0003] In the application process of BOM, when a material is changed, the material number or version of its hierarchical superior will also be changed. BOM change and version management, especially BOM change and management of complex products, is a difficult point in the application of PDM, ERP, MES and other systems.

[0004] In the manufacturing process of products with a high degree of standardization, such as large-scale or repetitive production, BOM can be reused in mass production, and the processing investment of BOM is controllable and the application benefits are good. However, most large-scale equipment adopts the manufacturing method of design-to-order (ETO), and usually adopts the method of project management for manufacturing management, which is a customer-oriented project-based manufacturing management method. BOM is often used only once, and the utilization rate of BOM is low; while products are often more complex, the processing workload of BOM is large; and the project life cycle is long, which is reflected in the long process cycle of early engineering plan and bidding quotation, design plan and its refinement, parts customization and manufacturing, assembly test, transportation and installation, and service. Different stages of the life cycle require the participation of BOM, which further increases the difficulty and workload of BOM management. For example, cost management, the BOMs in various stages such as bidding quotation, contract confirmation, scheme design, engineering design, manufacturing execution, and after-sales service are different, and the existing BOM management method is difficult to track and manage the process.

[0005] In the current application of manufacturing enterprise information systems, BOM physical attributes and business attributes are established on the same object (based on material coding); however, due to the manufacturing process of large equipment, product BOM construction cycle, full life cycle application, complex product structure, and variable product BOM items, the existing BOM construction and application technologies have the following difficulties:

[0006] 1. The determination of product BOMs for large equipment often lags behind business needs. Businesses that rely on BOMs in information systems cannot be carried out and can often only be conducted offline first and transferred online when conditions are met.

[0007] 2. The structure of the BOM for large equipment is complex, with many lines (thousands to tens of thousands of lines), and the degree of standardization of materials is low. The workload of BOM processing, conversion, and establishment of material master data is large and requires manual processing.

[0008] 3. For large equipment BOM, one BOM usually corresponds to one product. The utilization rate of each product BOM in the information system is low, which leads to a low input-output ratio of BOM processing.

[0009] 4. BOM has a long life cycle. Due to the continuous confirmation of user needs, the continuous refinement of design solutions and the optimization of solutions, it changes constantly during the entire life cycle. Such changes require the replacement of materials in the BOM in the information system, which is more complicated to handle. For example, after the purchase is initiated, if the user needs change, resulting in a change in the material number, all procurement operations need to be changed.

[0010] 5. BOM changes throughout the entire life cycle of the product. Different materials are often used during the quotation, design, and use process. The material changes of BOM at different stages cannot be directly compared and analyzed. Summary of the invention

[0011] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to provide a method for constructing a product material list and related equipment to solve the technical problem in the prior art of how to manage and efficiently utilize the product material list of complex products throughout their life cycle.

[0012] The present invention is achieved through the following technical solutions:

[0013] In a first aspect, the present invention provides a method for constructing a product bill of materials, comprising:

[0014] Build a unified product bill of materials for product systems with different specifications;

[0015] Generate the product's proxy material list according to the product's unified material list;

[0016] Build the actual product bill of materials, and establish a mapping relationship with the product unified bill of materials based on the actual product bill of materials. Based on the mapping relationship, associate it with the product's proxy bill of materials to realize the construction of the product bill of materials.

[0017] Preferably, the specific process of constructing a unified product bill of materials for product systems of different specifications is as follows:

[0018] Obtaining several product bills of materials, extracting structural features of the several product bills of materials, wherein a common structure is extracted according to the structural features;

[0019] Establish a tree hierarchy of the unified product bill of materials according to the common structure, and encode the items of the unified product bill of materials according to the tree hierarchy;

[0020] The encoded tree hierarchy is decomposed and merged, and the product material list items are determined according to the decomposed and merged tree hierarchy according to the factory business requirements and the granularity of business management;

[0021] Assign an abstract material to each product BOM item, determine the material master data of the abstract material, and encode it;

[0022] Business master data is established based on the material master data of the encoded abstract material to drive the operation of the business system and complete the construction of the unified material list of the product.

[0023] Furthermore, the product material list items are determined by the factory business needs and the granularity of business management, wherein the determination method includes packaging a group of materials to form abstract materials, and performing the same business operations on different businesses at the same time, wherein the different businesses include planning business, procurement business, warehousing business, manufacturing business, packaging business and installation business.

[0024] Preferably, the specific process of generating the proxy bill of materials of the product according to the unified bill of materials of the product is as follows:

[0025] Specify the product number, obtain the unified bill of materials for the product, copy the structure of the unified bill of materials, and generate the virtual material of the product's proxy bill of materials based on the abstract material in the unified bill of materials. The material code is combined with the product number to generate the proxy bill of materials for the product.

[0026] Furthermore, the proxy bill of materials of the product corresponds to the unified bill of materials of the product through a structure code, and the virtual material reuses the business attributes of the abstract material in the unified bill of materials of the product.

[0027] Preferably, the approach to constructing the actual product bill of materials includes constructing the actual product bill of materials based on instantiating the materials of the unified product bill of materials and through an assembly structure based on the product design.

[0028] Preferably, establishing a mapping relationship between the actual product bill of materials and the unified product bill of materials includes establishing a root node correspondence, an intermediate node correspondence, and a leaf node correspondence between the actual product bill of materials and the unified product bill of materials.

[0029] In a second aspect, the present invention further provides a system for constructing a product bill of materials, based on the above-mentioned method for constructing a product bill of materials, comprising:

[0030] Product BOM building module, used to build a unified product BOM for product systems with different specifications;

[0031] Product BOM generation module, used to generate the product's proxy BOM according to the product's unified BOM;

[0032] The mapping relationship establishment module is used to construct the actual product material list, and establish a mapping relationship with the product unified material list based on the actual product material list, and realize the construction of the product material list based on the mapping relationship.

[0033] In a third aspect, the present invention further provides a mobile terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for constructing a product bill of materials as described above when executing the computer program.

[0034] In a fourth aspect, the present invention further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the method for constructing a product bill of materials as described above.

[0035] Compared with the prior art, the present invention has the following beneficial technical effects:

[0036] The present invention provides a method for constructing a product bill of materials, which systematically constructs a unified product bill of materials for products of different specifications; generates a proxy bill of materials for a product according to the unified product bill of materials; constructs an actual product bill of materials, and establishes a mapping relationship with the unified product bill of materials according to the actual product bill of materials, and associates the proxy bill of materials with the product based on the mapping relationship to realize the construction of the product bill of materials, and simplifies and uniformly manages the complex product bill of materials through the unified product bill of materials, simplifies the processing process of each product bill of materials, and realizes the automatic processing of the product bill of materials. In addition, by generating a proxy bill of materials for a product in an information system, business is not carried out when the actual product bill of materials is not ready, and the system operation is not constrained by the actual product bill of materials, and the product bill of materials management of different materials is effectively performed throughout the life cycle.

[0037] Furthermore, the present invention can greatly simplify the business process based on the product bill of materials in the information system of the manufacturing enterprise, greatly shorten the processing time of the product bill of materials, reduce the workload, and improve the use efficiency of the product bill of materials. The product bill of materials processing logic based on the existing system does not require a lot of customization and can meet the key business requirements of large and complex product bills of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Flowchart of a method for constructing a product bill of materials in an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the structure of the bill of materials of a product and its mapping relationship in an embodiment of the present invention;

[0040] Figure 3 is a mapping relationship between the actual product bill of materials items and the product unified bill of materials items in the embodiment of the present invention;

[0041] Figure 4 A schematic diagram of multiple views and versions of a unified bill of materials for a product in an embodiment of the present invention;

[0042] Figure 5 A flowchart of constructing a unified bill of materials for a product in an embodiment of the present invention;

[0043] Figure 6 A schematic diagram of the construction and application process of a product bill of materials in an embodiment of the present invention;

[0044] Figure 7 It is a schematic diagram of the system structure of the product bill of materials in an embodiment of the present invention;

[0045] In the figure: 1-product bill of materials construction module; 2-product bill of materials generation module; 3-mapping relationship establishment module. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0048] The purpose of the present invention is to provide a method for constructing a product bill of materials and related equipment. The main method is to extract the common characteristics of a series of products according to the functional structure, establish a unified product bill of materials, and instantiate the product bill of materials based on the unified product bill of materials as a proxy bill of materials for the product. The actual product bill of materials is associated with the proxy bill of materials of the product by establishing a mapping relationship with the unified product bill of materials.

[0049] The present invention separates the management purpose (business plane) of the product bill of materials from the product manufacturing purpose (manufacturing plane) in the application process of the traditional product bill of materials: in the business plane, the product proxy bill of materials is used in a simplified information system to realize various business application functions based on the product bill of materials, which not only realizes the management of the entire life cycle of the BOM, but also meets the changes of the product bill of materials during the entire life cycle. In the on-site manufacturing application link (such as CNC machining) of the manufacturing plane, the physical product bill of materials is used. The product bill of materials of this method is simple to process and can meet most business needs. This solves the technical problem of how to manage the product bill of materials for different materials throughout the entire life cycle in the prior art.

[0050] See also Figure 1 In one embodiment of the present invention, a method for constructing a product bill of materials is provided, comprising:

[0051] Step 1: Build a unified product bill of materials for product systems with different specifications;

[0052] Specifically, the specific process of building a unified product bill of materials for product systems with different specifications is as follows:

[0053] Select the bill of materials of one or more products with the most complex structures and extract the structural features of the products.

[0054] According to the product structure relationship, build a tree-like hierarchical structure of the unified bill of materials of the product;

[0055] The decomposition and merging of hierarchical structures determine the product bill of materials items at the appropriate granularity based on the factory business needs; the product bill of materials items can package a group of materials and perform the same business operations for different businesses, such as planning, procurement, warehousing, manufacturing, packaging, installation, etc.

[0056] Among them, the product bill of materials items determined by the factory business needs and the granularity of business management can be determined according to business needs, and the definition of the unified product bill of materials items can be established, including packaging a group of unrelated materials; taking a subset of component sub-components; taking a component and streamlining its sub-components; and omitting middleware that does not require business management;

[0057] Among them, the unified product bill of materials items can establish the following mapping rules based on the actual product bill of materials items:

[0058] One product unified bill of materials item corresponds to 0 actual bill of materials items (one to zero): This means that the function item does not need to be implemented in this product and the unified bill of materials item can be deleted (optional).

[0059] A unified product bill of materials item corresponds to an actual bill of materials item (one-to-one): a unified product bill of materials item corresponds one-to-one to a component or part of an actual product bill of materials item; when the actual product bill of materials is a part, the product bill of materials item has the same meaning as the traditional product bill of materials item, but the material master data attributes of the part reuse the business attributes of the material master data of the unified product bill of materials item. For example, the unified product bill of materials item description is A, 1 item, corresponding to the actual product bill of materials, 5 parts B; when the actual product bill of materials item is a component, it means that all parts under the component are processed as a whole. For example, large equipment requires a cooling unit, which needs to be purchased separately, but is a whole in the business processing process. The unified product bill of materials description is: 1 cooling unit, and the product bill of materials item mapped to the actual product bill of materials is described as XX cooling unit 4 sets. Although the cooling unit needs to use details when assembling, it is processed as a whole in the business process and does not need to be decomposed, thereby simplifying the use of the product bill of materials.

[0060] One unified product bill of materials item corresponds to multiple actual product bill of materials items (one to many): a unified product bill of materials item packages multiple actual product bill of materials items. A leaf node (last-level node) of the unified product bill of materials corresponds to multiple parts in the actual product bill of materials. Multiple parts can be part of a structural component; or they can be the same type of parts of multiple structural components. For example: the fasteners of a customized product are provided in sets. In this case, the unified product bill of materials item is described as: 1 set of fasteners; the corresponding actual product bill of materials item is the fastener list of the product, which extracts all the fasteners in the product bill of materials and is supplied by the supplier.

[0061] All product BOM items of the actual product are mapped to the unified product BOM. Each actual product BOM item has and only corresponds to one unified product BOM item.

[0062] The unified product bill of materials structure items constructed can cover all actual product bill of materials items for this series of products.

[0063] Encode the unified product bill of materials items, that is, assign a unique structure code to each product bill of materials item. The code can be used as the code of the abstract material to establish a mapping relationship with the actual material group.

[0064] Business master data is established based on the business characteristics of each product bill of materials item, such as the processing method of the material group, procurement lead time / production cycle, procurement group, warehouse location, and issuing workshop.

[0065] The unified bill of materials of the product can generally meet the use of the product bill of materials in all stages of the entire life cycle; or establish different views (versions) for conversion at different stages.

[0066] Among them, the unified product bill of materials is the super bill of materials, which is a bill of materials that meets all product structures, that is, a superset of all product bills of materials.

[0067] Step 2: Generate a proxy bill of materials for the product based on the unified bill of materials of the product;

[0068] Specifically, the specific process of generating the product's proxy material list according to the product's unified material list is as follows:

[0069] Determine the unique identification of the product, such as the product number;

[0070] Determine the unified product bill of materials, and automatically generate the structure code of the product's proxy bill of materials based on the structure code and product number of the unified product bill of materials. The product's proxy bill of materials retains the structural relationship of the unified product bill of materials, and the product's proxy bill of materials items reuse the business attributes of the unified product bill of materials items.

[0071] Adjust the business item attributes of the product's agent bill of materials according to the actual business changes of the product. For example, if the processing method of a certain item in the unified bill of materials of a product is self-made, the actual product is adjusted to outsourcing due to insufficient production capacity.

[0072] Based on the product's proxy bill of materials, business applications are carried out in ERP, MES and other systems.

[0073] Among them, the agent bill of materials for generating products includes:

[0074] Copy the unified BOM structure;

[0075] Since the unified BOM is a super BOM, unnecessary BOM items can be deleted;

[0076] Regenerate the virtual material code of this product based on the material code of the virtual material in the unified BOM.

[0077] The proxy bill of materials items of the product generated in this embodiment include the product structure code, the structure code, the material code and the unified BOM structure code.

[0078] Step 3: Build the actual product bill of materials, and establish a mapping relationship with the unified product bill of materials according to the definition rules of the actual product bill of materials items. Based on the mapping relationship, associate it with the product's proxy bill of materials to realize the construction of the product bill of materials, such as Figure 2 and Figure 3 shown.

[0079] Specifically, the product bill of materials items are determined in the actual product bill of materials, including materials (codes, names, etc.), quantities, and associated assemblies (optional), etc.;

[0080] Establish the mapping relationship between the actual product BOM items and the product unified BOM items. Based on the definition of the product unified BOM items and the actual functional requirements of the product;

[0081] according to Figure 3 As shown, the actual bill of materials items of the product are mapped according to the mapping rules of the unified bill of materials items of the product, as described below:

[0082] The root node of the actual product bill of materials, that is, the product general assembly item (root), corresponds one-to-one with the product engineering item (root) of the product's proxy bill of materials.

[0083] The intermediate node of the actual product bill of materials corresponds to the unified product bill of materials item, including the following situations:

[0084] One-to-one: One component or part corresponds to one unified bill of materials item.

[0085] Many-to-one: Multiple product components with the same business function are combined into one unified bill of materials item for the product.

[0086] 0 to 1: There is no corresponding item of the unified product bill of materials item in the actual product bill of materials. In this case, the unified product bill of materials item can be deleted.

[0087] One-to-zero: The actual product BOM items do not need to correspond to the product proxy BOM items. In this case, the actual product BOM items are only meaningful in terms of product composition, but not in terms of business management. For example, a component drawing that is only used for assembly does not need to be managed separately in the workshop.

[0088] The leaf nodes of the actual product bill of materials items are usually decomposed into purchased parts or raw materials, and the transformation of the intermediate nodes includes the following transformation forms.

[0089] One-to-one: A leaf node item in the actual bill of materials of a product corresponds to a leaf item in the proxy bill of materials of the product.

[0090] Many-to-one: Multiple raw materials or parts are combined according to the nature of the business. For example, multiple pipes and flanges composed of a product joint pipe assembly are ordered from the same manufacturer and can be combined for business management (such as pricing based on the weight of the whole set, whole set procurement, whole set warehousing, whole set inspection, and whole set practical use), corresponding to a unified bill of materials item, and correspondingly only one record needs to be tracked in the business system.

[0091] One-to-zero: This does not exist for leaf nodes. A leaf node in the actual bill of materials of a product must belong to the leaf node of the proxy bill of materials of a certain product.

[0092] 0 to 1: Indicates that there is no such item. This product unified bill of materials item is an optional item. The proxy product BOM can delete this item. Specify the mapped product unified bill of materials item code for the actual product bill of materials item.

[0093] The implementation principle of the method for constructing a product bill of materials provided by the present invention is as follows:

[0094] Implementation of unified product bill of materials. The implementation of unified product bill of materials in the system is similar to that of the existing system; however, the materials of unified product bill of materials items are all abstract materials; the properties of the materials are the same as the existing methods.

[0095] Implementation of the proxy bill of materials for products. The proxy bill of materials for products is the reuse of the unified bill of materials for products in specific products. Its product bill of materials retains the line number (structure code) of the unified bill of materials of products. The abstract materials of the unified bill of materials of products are recoded (the actual product bill of materials mapping of different products is different) to form the virtual materials of the proxy bill of materials. The proxy bill of materials of products adds attributes according to business needs: such as the planned quantity of the actual product bill of materials, the functional requirements of customers, the mapping progress of the actual product bill of materials, procurement and other business needs, etc.

[0096] Implementation of the actual product bill of materials. The actual product bill of materials line needs to add the product bill of materials item code corresponding to the product unified bill of materials, establish a mapping relationship with the product unified bill of materials item, and then establish a mapping relationship with the product proxy bill of materials item, that is: the actual bill of materials of the product is mounted in the virtual material of the product proxy bill of materials. At the same time, updating the mapping status, hanging on drawings and technical documents, etc., can be realized in the PDM system.

[0097] A method for constructing a product bill of materials provided by the present invention is described as follows in application:

[0098] In business systems such as ERP and MES, use the product proxy bill of materials to replace the traditional product bill of materials for application:

[0099] Reuse of product bill of materials and material business attributes. In the unified product bill of materials, the virtual material of each product bill of materials item is pre-defined with the attributes required for business processing through abstract materials, such as the processing method (purchased, self-made, outsourced), lead time (production lead time or procurement lead time), procurement group, storage location, general process requirements such as process route, equipment, tooling and other resource requirements, and general technical documents such as procurement specifications, inspection standards, and operation instructions. The proxy bill of materials of the product is automatically generated based on the unified product bill of materials. If there are a few special requirements for the product, only a small change is needed to the business attributes of the virtual material of the product, and the proxy bill of materials of the product is used to replace the actual product bill of materials for business processing. Compared with the existing method, the business attributes are assigned to each material. For each product bill of materials, it is necessary to create the material master data and fill in the business attributes according to the newly added materials for each product bill of materials, and at the same time determine the processing method, process route, etc. for each product bill of materials line. Through the reuse of the data of the unified product bill of materials, the processing workload of the product bill of materials data is reduced.

[0100] Product BOM line conversion: The unified product BOM pre-builds multiple forms of product BOMs. Different forms of product BOMs have different structures, but the corresponding product BOM items are the same. The proxy BOMs of the products generated based on different views of the unified product BOM can meet the needs of the business, and only require minor adjustments based on business changes. For example, a unified BOM for manufacturing products and a unified BOM for boxing products are established, and specific product BOM items are combined into one box, thereby realizing automatic boxing allocation of corresponding materials and automatically generating a boxing list. The existing method requires the materials of the product to be identified and combined one by one for boxing. The present invention can improve efficiency and reduce workload.

[0101] Use the product's proxy bill of materials to run business in advance: The product's proxy bill of materials can be built in advance and used when conducting business activities, that is, before the actual product bill of materials is determined, many management activities such as planning, MRP calculation, purchase demand creation, production resource scheduling and arrangement can be completed in the system. The existing method requires the import of the actual product bill of materials to complete, but when it needs to be done in advance, it is often completed offline, or the procurement is not related to the product bill of materials.

[0102] Mapping of actual product bill of materials and instantiation of product proxy bill of materials: During the design process, the actual product bill of materials establishes a mapping relationship with the unified bill of materials of the product, and the instantiation of the product proxy bill of materials is realized through the association relationship between the unified bill of materials of the product and the proxy bill of materials of the product. During the design process, the design status and work progress can be fed back through the establishment of corresponding attributes of the product proxy bill of materials items, such as the time of initiation of the purchase order, at which point the purchase content and purchase specifications are required to be confirmed; further, the corresponding drawings or technical documents required for procurement are provided to the supplier in stages; for example, special inspection marks are established for the proxy bill of materials items of the product, and inspection specifications are required to be provided before the arrival date. Through the mapping of the proxy bill of materials items of the product and the actual product bill of materials items, the business collaboration of manufacturing and design is realized. Compared with the existing system implementation method, it is necessary to complete the demand investigation in advance and solidify it into the system. This method only needs to define the attributes and update the status to meet the needs of different businesses and simplify the implementation of the information system.

[0103] Product BOM changes and version control: When the actual product BOM changes, only the product proxy BOM items need to be version controlled. Most existing methods require the entire product BOM to be upgraded. The principle is that changes in components lead to changes in the entire machine, and all affected product BOM structure branches need to be versioned. This method isolates changes in the actual product BOM through the product proxy BOM, simplifying the system implementation of product BOM changes.

[0104] Horizontal comparison analysis of products: In the process of cost and profit analysis, different products can be compared horizontally. Based on the unified bill of materials of the product, the bill of materials, costs, etc. of the agent bills of materials of different products can be compared and analyzed. In the existing method, it is difficult to compare the bills of materials of different products horizontally due to their different structures and material codes.

[0105] Vertical comparative analysis of products: For complex product BOM products with long manufacturing cycles, materials change during the quotation, design, manufacturing, service and other business processes. The product BOM items provide different stages of the mapped actual product BOM versions based on the unified product BOM. Through the changes in the product BOM item versions, the materials and costs of the product throughout its life cycle can be tracked and analyzed. In the existing method, plan A is often used for product quotation, but plan B is used in actual production, and material coding cannot be used for automatic identification and comparison. The plans include changes in materials or inconsistent levels of refinement.

[0106] Among them, the unified bill of materials for products is used in systems related to operational business, for example, in the ERP system.

[0107] Process management: basic process processing based on the unified bill of materials of the product, such as process route division and design of special inspection requirements.

[0108] Planning and progress management: The entire life cycle of a product can be planned based on the unified bill of materials, even before the product is designed.

[0109] Procurement and material management: Materials are coded based on the unified bill of materials of the product and used as material codes. The whole process is carried out at this time. At this time, the specifications and models of the purchased materials may not have been finally confirmed.

[0110] Inspection and quality management: During inspection and analysis, quality issues are analyzed according to materials and parts.

[0111] Price comparison analysis: When comparing prices among suppliers, different suppliers have different material codes and cannot be compared directly. Use the product unified bill of materials item coding to achieve price comparison analysis between different suppliers.

[0112] Full life cycle cost control: During the full life cycle cost accounting process, the materials selected for the quoted cost are very different from the materials finally determined in the actual design. Cost accounting is performed based on the unified bill of materials of the product, different materials are mounted at different stages, and the cost change process of a single product bill of materials item is tracked through the change of materials.

[0113] Among them, in technology-related systems such as PDM, the actual product bill of materials is used.

[0114] During product design, the actual product bill of materials items can be automatically or manually mapped based on the actual structural relationship and materials, and the drawings, process cards, inspections, and procurement specifications related to the actual product bill of materials can be automatically mounted. Among them, general technical documents are automatically mounted according to the material type; special technical documents are mounted according to the progress.

[0115] When designing a product, you can determine the implementation goals of the product's unified bill of materials items (parts that may be required) based on the outline design.

[0116] Final confirmation of procurement / manufacturing: Final confirmation based on the actual product bill of materials. For parts with a long processing cycle, confirmation can be made in stages.

[0117] Physical material inspection operation: Inspection is performed based on the parameters of the actual product bill of materials items.

[0118] Physical processing and production: Operate according to the processing parameters of the actual product bill of materials items.

[0119] The application of the proxy material list of the product in the present invention in ERP.

[0120] The business attributes of the product BOM items, such as procurement lead time and production lead time, are set in the product unified BOM. The proxy BOM of the product generated based on the product unified BOM can directly run the material requirement plan and organize production and procurement in advance.

[0121] according to Figure 4 and Figure 5 As shown in the figure, the construction process of the unified product bill of materials has different business views. The construction process is as follows:

[0122] S1, extract product features: based on the product functional structure characteristics, preliminarily determine the product structure of the unified bill of materials items.

[0123] S2, determine the product structure: define the product's bill of materials items according to business needs, establish rules for determining the product's bill of materials items, and establish the association relationship between the product's bill of materials items.

[0124] S3, specify code: specify structure code and virtual material code for the unified bill of materials item of the product;

[0125] S4, assign business attributes: assign business attributes to the unified bill of materials items of the product, such as processing method, process, lead time, purchasing group, inventory location, etc.

[0126] S5, establish conversion rules: Based on the business attributes, build other views of the product bill of materials, such as the packaging product bill of materials, on the structure of the basic product bill of materials, and determine the conversion rules.

[0127] S6, View application: Generate various views of the product bill of materials based on the conversion rules.

[0128] according to Figure 6 As shown in the figure, the construction and application process of the product bill of materials is described as follows:

[0129] K1, start product engineering and determine product number;

[0130] K2, generating a proxy bill of materials for a product based on the unified bill of materials of the product, wherein the code of the proxy bill of materials for the product is automatically generated based on the product engineering code and the item code of the unified bill of materials of the product; the proxy bill of materials for the product reuses all the data of the unified bill of materials of the product;

[0131] K3, in the process of building the actual product BOM, specifying the product unified BOM item attributes for the actual product BOM items, binding the actual product BOM to the product unified BOM, and establishing a mapping relationship with the proxy BOM;

[0132] K4, technical data related to the actual product BOM items, is automatically mounted to the product's proxy BOM items through the relationship established in K3;

[0133] K5, create the actual product bill of materials, repeating the process of K3 and K4;

[0134] K6, Update the status of the agent bill of materials for the product;

[0135] K7, based on the business of unified bill of materials of products, convert the proxy bill of materials view of products.

[0136] In summary, the present invention provides a method for constructing a product bill of materials, which constructs a unified product bill of materials for products of different specifications; generates a proxy bill of materials for products according to the unified product bill of materials; constructs an actual product bill of materials, and establishes a mapping relationship with the unified product bill of materials according to the actual product bill of materials, and associates the proxy bill of materials with the product based on the mapping relationship to achieve the construction of the product bill of materials, and manages the complex product bill of materials in a unified manner through the unified product bill of materials, simplifies the processing process of each product bill of materials, and realizes the automatic processing of the product bill of materials. And by generating a proxy bill of materials for the product in the information system, the business is carried out when the actual product bill of materials is not ready, and the system operation is not constrained by the actual product bill of materials, and the product bill of materials management of different materials is effectively performed throughout the life cycle.

[0137] Example 2

[0138] according to Figure 7 As shown, the present invention also provides a system for constructing a product bill of materials, based on the above-mentioned method for constructing a product bill of materials, comprising:

[0139] Product bill of materials building module 1, used to build a unified product bill of materials for product systems with different specifications;

[0140] Product bill of materials generation module 2, used to generate a proxy bill of materials for the product according to the unified bill of materials of the product;

[0141] The mapping relationship establishment module 3 is used to construct the actual product material list, and establish a mapping relationship with the product unified material list based on the actual product material list, and realize the construction of the product material list based on the mapping relationship.

[0142] Example 3

[0143] The present invention also provides a mobile terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, such as a program for constructing a product bill of materials.

[0144] Example 4

[0145] The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for constructing a product bill of materials are implemented.

[0146] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for constructing a product bill of materials, characterized in that: include Build a unified product bill of materials for product systems with different specifications; Generate the product's proxy material list according to the product's unified material list; Build the actual product bill of materials, and establish a mapping relationship with the product unified bill of materials based on the actual product bill of materials. Based on the mapping relationship, associate it with the product's proxy bill of materials to realize the construction of the product bill of materials.

2. A method for constructing a product bill of materials according to claim 1, characterized in that: The specific process of constructing a unified product bill of materials for product systems of different specifications is as follows: Obtaining several product bills of materials, extracting structural features of the several product bills of materials, wherein a common structure is extracted according to the structural features; Establish a tree hierarchy of the unified product bill of materials according to the common structure, and encode the items of the unified product bill of materials according to the tree hierarchy; The encoded tree hierarchy is decomposed and merged, and the product material list items are determined according to the decomposed and merged tree hierarchy according to the factory business requirements and the granularity of business management; Assign an abstract material to each product BOM item, determine the material master data of the abstract material, and encode it; Business master data is established based on the material master data of the encoded abstract material to drive the operation of the business system and complete the construction of the unified material list of the product.

3. A method for constructing a product bill of materials according to claim 2, characterized in that: The product material list items are determined by the factory business needs and the granularity of business management, wherein the determination method includes packaging a group of materials to form abstract materials, and performing the same business operations on different businesses, wherein the different businesses include planning business, procurement business, warehousing business, manufacturing business, packaging business and installation business.

4. A method for constructing a product bill of materials according to claim 1, characterized in that: The specific process of generating a proxy bill of materials for a product according to the unified bill of materials of the product is as follows: Specify the product number, obtain the unified bill of materials for the product, copy the structure of the unified bill of materials, and generate the materials of the proxy bill of materials for the product based on the virtual materials in the unified bill of materials. The material code is combined with the product number to generate the proxy bill of materials for the product.

5. A method for constructing a product bill of materials according to claim 4, characterized in that: The proxy material list of the product corresponds to the unified material list of the product through a structure code, constructs virtual materials in the proxy material list based on abstract materials in the unified material list of the product, and reuses the business attributes of the abstract materials in the unified material list of the product.

6. A method for constructing a product bill of materials according to claim 1, characterized in that: The construction approach of the actual product bill of materials includes constructing the actual product bill of materials based on instantiation of materials of the product unified bill of materials and through an assembly structure based on product design.

7. A method for constructing a product bill of materials according to claim 1, characterized in that: The mapping relationship between the actual product bill of materials and the unified product bill of materials is established according to the actual product bill of materials, including the corresponding root nodes, the corresponding intermediate nodes and the corresponding leaf nodes between the actual product bill of materials and the unified product bill of materials.

8. A system for constructing a product bill of materials, characterized in that: A method for constructing a product bill of materials based on any one of claims 1 to 7, comprising: A product bill of materials building module (1) is used to build a unified product bill of materials for product systems of different specifications; A product bill of materials generation module (2), used to generate a proxy bill of materials for a product according to the unified bill of materials of the product; The mapping relationship establishment module (3) is used to construct the actual product bill of materials, and to establish a mapping relationship with the product unified bill of materials based on the actual product bill of materials, so as to realize the construction of the product bill of materials based on the mapping relationship.

9. A mobile terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method for constructing a product bill of materials as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for constructing a product bill of materials as claimed in any one of claims 1 to 7 are implemented.

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