Material change management method, device and equipment and computer readable storage medium

Abstract

A material change management method, apparatus and device, and a computer readable storage medium, relating to the technical field of engineering change, comprising: acquiring material information before and after change, the material information comprising a consumption coefficient, an actual vehicle type yield, a predicted vehicle type yield, and an initial total material amount; target time required for consuming up the materials before change is predicted based on the material information; material change implementation time is calculated based on the target time; and determining a production plan of the changed material based on the material change implementation time. Through the method and the device, the technical problems that materials are easy to omit due to manual management change and the fact progress of material change cannot reach the original switching plan due to the fact that the change time cannot be accurately predicted in the prior art can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering changes, and in particular to a material change management method, device, equipment and computer-readable storage medium. Background Art

[0002] As automobile technology develops and grows, in the production process of modern automobile companies, in order to meet consumer demand, improve product quality, and reduce manufacturing costs, a model will undergo several, dozens, or even hundreds of material changes from the beginning of trial production to the final discontinuation of production. MBOM (Manufacturing Bill of Material) manages all material information of the product. Therefore, in order to ensure the smooth implementation of material changes and do a good job of traceability management of material definitions, MBOM change management is particularly important in the modern automobile manufacturing industry.

[0003] In the related art, in the actual management change process, it is usually easy to miss materials in manual management due to the large number of material changes for each vehicle model; at the same time, the change time of some materials that are common to multiple models and have a large demand (such as standard parts, etc.) is often difficult to accurately calculate and predict, which leads to the actual progress of material changes failing to meet the original switching plan. Summary of the invention

[0004] The present application provides a material change management method, device, equipment and computer-readable storage medium, which can solve the technical problems existing in the prior art that manual management of changes is prone to omission of materials and the actual progress of material changes cannot meet the original switching plan due to the inability to accurately predict the change time.

[0005] In a first aspect, an embodiment of the present application provides a material change management method, the material change management method comprising:

[0006] Obtaining material information before and after the change, the material information including consumption coefficient, actual vehicle model production, expected vehicle model production and initial material total amount;

[0007] Based on the material information, it is estimated that a target time is required for the material to be consumed before the change;

[0008] Calculate the material change implementation time based on the target time;

[0009] A production plan for the material after the change is determined based on the implementation time of the material change.

[0010] In combination with the first aspect, in one implementation, estimating a target time required for the material to be consumed before the change based on the material information includes:

[0011] Calculate the consumption quantity of materials before the change based on the consumption coefficient, actual vehicle model production, and expected vehicle model production;

[0012] Get the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the total initial material quantity;

[0013] The time when the inventory quantity is equal to 0 or the inventory quantity is less than 0 for the first time is taken as the target time required for the material to be consumed before the change.

[0014] In combination with the first aspect, in one implementation, the consumption coefficient includes an actual consumption coefficient and an expected consumption coefficient, and the consumption quantity of the material before the change is calculated based on the consumption coefficient, the actual vehicle model output, and the expected vehicle model output, includes:

[0015] Calculate the first product between the actual consumption coefficient and the actual vehicle model production;

[0016] Calculate the second product between the estimated consumption factor and the estimated vehicle model production;

[0017] The consumption quantity of the material before the change is obtained based on the sum of the first product and the second product.

[0018] In combination with the first aspect, in one implementation, obtaining the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the initial total amount of the material includes:

[0019] Determine the total consumption quantity within the target period based on the consumption quantity of the material before the change;

[0020] Get the inventory quantity of the material before the change based on the initial total material quantity and the total consumption quantity.

[0021] In a second aspect, an embodiment of the present application provides a material change management device, the material change management device comprising:

[0022] An acquisition module, which is used to acquire material information before and after the change, wherein the material information includes consumption coefficient, actual vehicle model production, expected vehicle model production and initial material total amount;

[0023] A first calculation module, which is used to estimate the target time required for the material to be consumed before the change based on the material information;

[0024] A second calculation module, which is used to calculate the material change implementation time based on the target time;

[0025] A change plan management module is used to determine the production plan of the changed material based on the implementation time of the material change.

[0026] In conjunction with the second aspect, in one implementation, the first calculation module is specifically configured to:

[0027] Calculate the consumption quantity of materials before the change based on the consumption coefficient, actual vehicle model production, and expected vehicle model production;

[0028] Get the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the total initial material quantity;

[0029] The time when the inventory quantity is equal to 0 or the inventory quantity is less than 0 for the first time is taken as the target time required for the material to be consumed before the change.

[0030] In conjunction with the second aspect, in one implementation, the first calculation module is specifically configured to:

[0031] Calculate the first product between the actual consumption coefficient and the actual vehicle model production;

[0032] Calculate the second product between the estimated consumption factor and the estimated vehicle model production;

[0033] The consumption quantity of the material before the change is obtained based on the sum of the first product and the second product.

[0034] In conjunction with the second aspect, in one implementation, the first calculation module is specifically configured to:

[0035] Determine the total consumption quantity within the target period based on the consumption quantity of the material before the change;

[0036] Get the inventory quantity of the material before the change based on the initial total material quantity and the total consumption quantity.

[0037] In the third aspect, an embodiment of the present application provides a material change management device, which includes a processor, a memory, and a material change management program stored in the memory and executable by the processor, wherein when the material change management program is executed by the processor, the steps of the material change management method as described above are implemented.

[0038] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a material change management program is stored, wherein when the material change management program is executed by a processor, the steps of the material change management method as described above are implemented.

[0039] The beneficial effects brought by the technical solution provided by the embodiments of the present application include:

[0040] Based on the actual consumption coefficient, actual vehicle model output, expected consumption coefficient, expected vehicle model output, and the total initial material volume before the change, the target time required for the consumption of the materials before the change is estimated; the material change implementation time is calculated based on the target time, and then the production plan of the changed material is obtained through the material change implementation time, so that the changed material can be replaced in time when the material is changed, thereby solving the technical problems in the related technology that when changing materials, manual management is prone to omission of materials, and the calculation and prediction of the change time is inaccurate, resulting in the actual progress of the material change failing to meet the original switching plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a flow chart of an embodiment of the material change management method of this application;

[0042] Figure 2 A schematic diagram of the consumption points and consumption coefficients of two materials on different vehicle models involved in the embodiment of the present application;

[0043] Figure 3 A schematic diagram of the applicable scope and consumption coefficient of different vehicle models involved in the embodiment of the present application;

[0044] Figure 4 A schematic diagram summarizing the applicable scope and consumption coefficient of materials on different vehicle models involved in the embodiment of the present application;

[0045] Figure 5 It is a function coordinate diagram of the consumption quantity f(n) of the material before the change involved in the embodiment scheme of the present application;

[0046] Figure 6 This is a schematic diagram of the hardware structure of the material change management device involved in the embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. 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 creative work are within the scope of protection of this application.

[0048] First, some technical terms in the present application are explained to facilitate those skilled in the art to understand the present application.

[0049] MBOM: A manufacturing bill of materials used to organize and manage the materials needed to produce a product during the manufacturing process.

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0051] In a first aspect, an embodiment of the present application provides a material change management method.

[0052] In the embodiment, refer to Figure 1 , Figure 1 This is a flow chart of an embodiment of the material change management method of this application. Figure 1 As shown, the material change management method includes:

[0053] Step S10: Obtaining material information before and after the change, wherein the material information includes consumption coefficient, actual vehicle model output, expected vehicle model output and initial total material amount.

[0054] Exemplarily, it should be understood that the materials consumed before the material switching change are called pre-change materials, and the materials consumed after the material switching change are called post-change materials. In this embodiment, the material information before and after the change can be confirmed through the information in the existing information database. It should be noted that the material information before and after the change includes but is not limited to the consumption coefficients of the materials before and after the change, the actual vehicle model production, the expected vehicle model production and the initial total material, where the consumption coefficient represents the material actually consumed to produce each unit of product.

[0055] Specifically, the consumption coefficient of materials required for each model can be obtained through the production plan of the models that have been produced or are in production. Figure 2 As shown in the figure, assume that there are two materials, the right outer handle bracket and the left outer handle bracket. The material number of the right outer handle bracket is set to 9804715580, and the material number of the left outer handle bracket is set to 9804715680. On the inventory date, there are six models actually produced and the model codes are C84 / P84 / P87 / X81 / P54 / T93. Figure 2 It can be seen that the right front door of the C84 low-end model needs a right outer handle bracket and the left front door needs a left outer handle bracket. Therefore, for the C84 low-end model, the consumption coefficients of the right outer handle bracket and the left outer handle bracket are both 1; the right front door of the C84 high-end model does not need a right outer handle bracket and the left front door does not need a left outer handle bracket. Therefore, for the C84 high-end model, the consumption coefficients of the right outer handle bracket and the left outer handle bracket are both 0, and so on. Among them, the consumption point refers to the model that needs to consume the material before the change. For example, for the right outer handle bracket, its corresponding consumption points include C84 low-end model, C84 high-end model, P84 full series, P87 full series, X81 full series, P54 high-end model, P54 low-end model, T93 optional sunroof model and T93 without sunroof model.

[0056] Based on the consumption coefficient and consumption point of each material on different models, the following can be determined: Figure 3 The applicable scope and consumption coefficient of each material on different vehicle models are shown; among them, the applicable scope on the vehicle model refers to the scope of use of the material on the vehicle model, for example, some materials are used on all vehicles, and some materials are only used on a certain vehicle model.

[0057] Since the consumption points and consumption coefficients of materials defined on the vehicle model may also change over time, please refer to Figure 4 As shown, it is necessary to calculate the summary of materials on different models every day starting from the inventory date (for example, 2024 / 01 / 01); Figure 4 It can be seen that the consumption coefficient on each model is not constant. For example, on 2024 / 01 / 05, the number of right outer handle brackets and left outer handle brackets required for the T93 model without a sunroof is increasing.

[0058] Step S20: estimating the target time required for the material to be consumed before the change based on the material information.

[0059] Among them, the target time required for the material before the change to be consumed is estimated based on the material information, including: calculating the consumption quantity of the material before the change based on the consumption coefficient, the actual vehicle model output, and the estimated vehicle model output; obtaining the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the initial total material quantity; and taking the time when the inventory quantity is equal to 0 or the inventory quantity is less than 0 for the first time as the target time required for the material before the change to be consumed.

[0060] Exemplarily, in this embodiment, the time required for the materials before the change to be consumed will be estimated through the material information before and after the change; specifically, the consumption quantity of the materials before the change can be calculated based on the consumption coefficient of the materials before the change on different vehicle models, the actual vehicle model output and the estimated vehicle model output, and then the inventory quantity of the materials before the change can be obtained from the consumption quantity of the materials before the change and the initial total amount of materials before the change; when the inventory quantity of the materials before the change is equal to 0 or the inventory quantity is less than 0 for the first time, the time corresponding to the inventory quantity being equal to 0 or the inventory quantity being less than 0 for the first time is used as the target time required for the materials before the change to be consumed. It should be noted that the target time is the time for material switching before and after the change.

[0061] Furthermore, in some embodiments, the consumption coefficient includes an actual consumption coefficient and an expected consumption coefficient, and the consumption quantity of the material before the change is calculated based on the consumption coefficient, the actual vehicle model output, and the expected vehicle model output, including: calculating a first product between the actual consumption coefficient and the actual vehicle model output; calculating a second product between the expected consumption coefficient and the expected vehicle model output; and obtaining the consumption quantity of the material before the change based on the sum of the first product and the second product.

[0062] Exemplarily, in this embodiment, for the material before the change, the consumption quantity will be calculated by using its consumption coefficient on different vehicle models and the vehicle model output. For example, the consumption coefficient of the material before the change on a certain vehicle model and the daily output of the vehicle model can be used to calculate the consumption quantity of the material before the change on the vehicle model each natural day, and then the consumption quantities on different vehicle models can be added together to get the total consumption of the material before the change on each natural day; wherein, the consumption quantity can be obtained based on the product of the consumption coefficient and the vehicle model output.

[0063] It should be noted that the consumption coefficient is divided into actual consumption coefficient and expected consumption coefficient, where the actual consumption coefficient refers to the consumption coefficient of the material before the change on the produced models, and the expected consumption coefficient refers to the consumption coefficient of the material before the change on the expected models; the model output is also divided into actual model output and expected model output, where the actual model output is the number of models that have been produced, and the expected model output is the number of models expected to be produced in the future. Therefore, the first product between the actual consumption coefficient and the actual model output, and the second product between the expected consumption coefficient and the expected model output can be calculated respectively, and the sum of the first product and the second product can be used as the consumption quantity of the material before the change.

[0064] Furthermore, in some embodiments, obtaining the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the initial total amount of the material includes: determining the total consumption quantity within the target period based on the consumption quantity of the material before the change; and obtaining the inventory quantity of the material before the change based on the initial total amount of the material and the total consumption quantity.

[0065] Exemplarily, in this embodiment, the target cycle refers to the length of time from the inventory date to the date when the material is expected to be consumed before the change. It should be understood that a production plan will be made before the production of a vehicle model. Generally speaking, the production plans that have been produced and within the next month are daily plans, and the production plans after the next month are monthly plans. However, there may be situations where the material consumption coefficient changes with the date due to changes in the material consumption point or the expiration of the material validity period. These changes will affect the entire production plan; therefore, in this embodiment, the production plan can preferably be calculated according to natural days.

[0066] Among them, this embodiment can assume that a preset date is m, which is used as a time node to distinguish the actual consumption and expected consumption of the material before the change. For example, 2024 / 01 / 01 is the inventory date for the first inventory of the material quantity. On 2024 / 01 / 30, it is necessary to count the time when the material before the change is consumed. Then 2024 / 01 / 30 is the preset date, that is, m=2024 / 01 / 30. Therefore, the actual consumption quantity of the material before the change on each natural day from the inventory date to the preset date m can be calculated by multiplying the actual consumption coefficient and the actual vehicle model production; at the same time, the expected consumption quantity of the material before the change on each natural day from the preset date m to the consumption of the material is calculated by multiplying the expected consumption coefficient and the expected vehicle model production; then the total consumption quantity in the target period is calculated by the actual consumption quantity of the material before the change on each natural day and the actual consumption quantity of the material before the change on each natural day; finally, the initial total material quantity of the material before the change and the total consumption quantity in the target period are subtracted to calculate the inventory quantity of the material before the change.

[0067] For details, see Figure 5 As shown, Figure 5 f1(n) represents the actual consumption quantity, f2(n) represents the expected consumption quantity, ∑f(n) represents the total consumption quantity of the material before the change, S P represents the total initial material quantity before the change, p represents the inventory date, m represents the preset date, and n represents the time; therefore, the consumption quantity and inventory quantity of the material before the change can be represented by the following function expression:

[0068] f1(n)=s1×z1+s2×z2+...+s r × r

[0069] f2(n)=s 1 × 1 +s 2 × 2 +...+s r × r

[0070] ∑f1(n)=fp+fp +1 +...+fm,n=p,p+1,...,m

[0071] ∑f2(n)=fm +1 +fm +2 +...,n=m+1,m+2,...

[0072] ∑f(n)=∑f1(n)+∑f2(n)

[0073] y(n)=S P -∑f(n)

[0074] In the formula, r represents the total number of vehicle models, z r represents the production volume of the rth model in a natural day; s r It represents the consumption coefficient of the material on the rth vehicle model before the change. Since the consumption coefficients of the material on different vehicle models may be different before the change, there are r different consumption coefficients in total. y(n) represents the inventory quantity. (p, p+1,…, m) represents each natural day from the inventory date of the material before the change to the preset date m. (m+1, m+2,…) represents each natural day from the preset date m to the end of the material consumption.

[0075] Specifically, for each natural day n, f1(n) and f2(n) are calculated by summing the product of the consumption coefficients of different models and the model output on that day; it can be understood that if Figure 4 As shown, if the output of each type of vehicle is 1 on 2024 / 01 / 01, the consumption of the right outer handle bracket on that day is 1*1+1*1+1*2+1*1+1*2=7. If the consumption coefficient changes, the material consumption on that day may change. For example, assuming that the output of each type of vehicle is 1 on 2024 / 01 / 05, the consumption of the right outer handle bracket on that day is 1*1+1*1+1*2+1*1+1*2+1*2=9. Calculate the material consumption quantity on each natural day before the material is changed to obtain the total consumption quantity ∑f(n); subtract the total consumption quantity from the initial total material quantity before the change to obtain the inventory quantity of the material before the change; when the inventory quantity is 0 or the inventory quantity is less than 0 for the first time, the corresponding minimum value of the variable n is the estimated time (i.e., target time) when the material before the change will be consumed in the future, which is the node of the expected switching of the change.

[0076] Step S30: Calculate the material change implementation time based on the target time.

[0077] Exemplarily, when the inventory quantity is equal to 0 or the inventory quantity is less than 0 for the first time, the corresponding time is the target time of the material before the change, and then the target time is used as the implementation time of the material change, that is, when the target time is reached, the material before the change will be completely consumed, and then the material after the change will be switched.

[0078] Step S40: Determine a production plan for the material after the change based on the material change implementation time.

[0079] For example, to ensure that the changed material can be switched to the machine in time when the material before the change is consumed, this embodiment will reversely formulate the production plan of the changed material according to the implementation time of the material change. For example, if a material A is changed to material B, and the estimated consumption time of material A before the change is 2024 / 01 / 01, that is, the implementation target of this material change is 2024 / 01 / 01, then the industrialization implementation plan of material B is formulated, and the industrialization production plan of material B is reversed according to the industrialization implementation cycle.

[0080] It should be understood that due to fluctuations in production plans, raw materials and semi-finished product inventories at suppliers, etc., the estimated consumption date of the materials before the change is not fixed, so it is necessary to update the input inventory and production plan information in a timely manner to calculate and update the change management plan. Therefore, after formulating the production plan for the material after the change, this embodiment will also regularly update the inventory information and production plan information of the material before the change to update the change management plan according to the latest information, so as to track the implementation of the material after the change as planned, and when the implementation of the material after the change does not meet the change plan, an alarm reminder can be issued.

[0081] In this embodiment, the target time required for the consumption of the materials before the change is estimated through the actual consumption coefficient, the actual vehicle model output, the expected consumption coefficient, the expected vehicle model output, and the total initial material amount before the change; the material change implementation time is calculated based on the target time, and then the production plan of the changed material is obtained through the material change implementation time, so that the changed material can be replaced in time when the material is changed, thereby solving the technical problems in the related technology that manual management is prone to omission of materials when changing materials, and the calculation and prediction of the change time is inaccurate, resulting in the actual progress of the material change failing to meet the original switching plan.

[0082] In summary, this embodiment establishes a change management plan based on the consumption of materials before the change to control the implementation of the change; when calculating the consumption of materials before the change, it is divided into two parts: actual consumption data and estimated consumption data, which can effectively improve the accuracy of the calculation; and automatically generates a change plan and an industrialization plan for the material after the change based on the calculation results, and monitors the actual implementation progress of the material after the change to control the implementation risk; in addition, the input inventory information and production plan can be updated regularly, thereby effectively improving the accuracy of the change plan.

[0083] In a second aspect, an embodiment of the present application also provides a material change management device.

[0084] In one embodiment, the material change management device includes:

[0085] An acquisition module, which is used to acquire material information before and after the change, wherein the material information includes consumption coefficient, actual vehicle model production, expected vehicle model production and initial material total amount;

[0086] A first calculation module, which is used to estimate the target time required for the material to be consumed before the change based on the material information;

[0087] A second calculation module, which is used to calculate the material change implementation time based on the target time;

[0088] A change plan management module is used to determine the production plan of the changed material based on the implementation time of the material change.

[0089] Furthermore, in one embodiment, the first calculation module is specifically used for:

[0090] Calculate the consumption quantity of materials before the change based on the consumption coefficient, actual vehicle model production, and expected vehicle model production;

[0091] Get the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the total initial material quantity;

[0092] The time when the inventory quantity is equal to 0 or the inventory quantity is less than 0 for the first time is taken as the target time required for the material to be consumed before the change.

[0093] Furthermore, in one embodiment, the first calculation module is further configured to:

[0094] Calculate the first product between the actual consumption coefficient and the actual vehicle model production;

[0095] Calculate the second product between the estimated consumption factor and the estimated vehicle model production;

[0096] The consumption quantity of the material before the change is obtained based on the sum of the first product and the second product.

[0097] Furthermore, in one embodiment, the first calculation module is further configured to:

[0098] Determine the total consumption quantity within the target period based on the consumption quantity of the material before the change;

[0099] Get the inventory quantity of the material before the change based on the initial total material quantity and the total consumption quantity.

[0100] Among them, the functional implementation of each module in the above-mentioned material change management device corresponds to the various steps in the above-mentioned material change management method embodiment, and its functions and implementation processes will not be repeated here one by one.

[0101] In a third aspect, an embodiment of the present application provides a material change management device, which may be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0102] Reference Figure 6 , Figure 6 Schematic diagram of the hardware structure of the material change management device involved in the embodiment of the present application. In the embodiment of the present application, the material change management device may include a processor, a memory, a communication interface and a communication bus.

[0103] The communication bus may be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0104] The communication interface includes input / output (I / O) interface, physical interface and logical interface, etc., which are used to realize the interconnection of devices inside the material change management device, and the interface used to realize the interconnection of the material change management device with other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber optic interface, an ATM interface, etc.; the user device can be a display, a keyboard, etc.

[0105] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0106] The processor may be a general-purpose processor, and the general-purpose processor may call the material change management program stored in the memory and execute the material change management method provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the material change management program is called may refer to the various embodiments of the material change management method of the present application, which will not be repeated here.

[0107] Those skilled in the art will understand that Figure 6 The hardware structure shown in the figure does not constitute a limitation on the present application, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0108] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium.

[0109] A material change management program is stored on the computer-readable storage medium of the present application, wherein when the material change management program is executed by the processor, the steps of the material change management method as described above are implemented.

[0110] Among them, the method implemented when the material change management program is executed can refer to the various embodiments of the material change management method of this application, and will not be repeated here.

[0111] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0112] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0113] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0114] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0115] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0116] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0117] The above are only preferred embodiments of the present application, and are not intended to 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 applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A material change management method, characterized in that: The material change management method comprises: Obtaining material information before and after the change, the material information including consumption coefficient, actual vehicle model production, expected vehicle model production and initial material total amount; Based on the material information, it is estimated that a target time is required for the material to be consumed before the change; Calculate the material change implementation time based on the target time; A production plan for the material after the change is determined based on the implementation time of the material change.

2. The material change management method according to claim 1, characterized in that: The target time required for the material to be consumed before the change is estimated based on the material information, includes: Calculate the consumption quantity of materials before the change based on the consumption coefficient, actual vehicle model production, and expected vehicle model production; Get the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the total initial material quantity; The time when the inventory quantity is equal to 0 or the inventory quantity is less than 0 for the first time is taken as the target time required for the material to be consumed before the change.

3. The material change management method according to claim 2, characterized in that: The consumption coefficient includes an actual consumption coefficient and an estimated consumption coefficient. The consumption quantity of the material before the change is calculated based on the consumption coefficient, the actual vehicle model output, and the estimated vehicle model output, including: Calculate the first product between the actual consumption coefficient and the actual vehicle model production; Calculate the second product between the estimated consumption factor and the estimated vehicle model production; The consumption quantity of the material before the change is obtained based on the sum of the first product and the second product.

4. The material change management method according to claim 2, characterized in that: The inventory quantity of the material before the change is obtained based on the consumption quantity of the material before the change and the initial total amount of the material, including: Determine the total consumption quantity within the target period based on the consumption quantity of the material before the change; Get the inventory quantity of the material before the change based on the initial total material quantity and the total consumption quantity.

5. A material change management device, characterized in that: The material change management device comprises: An acquisition module, which is used to acquire material information before and after the change, wherein the material information includes consumption coefficient, actual vehicle model production, expected vehicle model production and initial material total amount; A first calculation module, which is used to estimate the target time required for the material to be consumed before the change based on the material information; A second calculation module, which is used to calculate the material change implementation time based on the target time; A change plan management module is used to determine the production plan of the changed material based on the implementation time of the material change.

6. The material change management device according to claim 5, characterized in that: The first calculation module is specifically used for: Calculate the consumption quantity of materials before the change based on the consumption coefficient, actual vehicle model production, and expected vehicle model production; Get the inventory quantity of the material before the change based on the consumption quantity of the material before the change and the total initial material quantity; The time when the inventory quantity is equal to 0 or the inventory quantity is less than 0 for the first time is taken as the target time required for the material to be consumed before the change.

7. The material change management device according to claim 6, characterized in that: The first calculation module is specifically used for: Calculate the first product between the actual consumption coefficient and the actual vehicle model production; Calculate the second product between the estimated consumption factor and the estimated vehicle model production; The consumption quantity of the material before the change is obtained based on the sum of the first product and the second product.

8. The material change management device according to claim 6, characterized in that: The first calculation module is specifically used for: Determine the total consumption quantity within the target period based on the consumption quantity of the material before the change; Get the inventory quantity of the material before the change based on the initial total material quantity and the total consumption quantity.

9. A material change management device, characterized in that: The material change management device includes a processor, a memory, and a material change management program stored in the memory and executable by the processor, wherein when the material change management program is executed by the processor, the steps of the material change management method as described in any one of claims 1 to 4 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a material change management program, wherein when the material change management program is executed by a processor, the steps of the material change management method according to any one of claims 1 to 4 are implemented.

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