Production management system, production simulation device, production simulation method, and production simulation program

Abstract

To provide a production management system, a production simulation device, a production simulation method, and a production simulation program that can efficiently simulate review of a production plan accompanied by a change to master information.SOLUTION: A production management system includes: a production control unit that manages master used for production control; and a production simulation unit that acquires master information included in the master from the production management unit and performs, on the basis of the master information, production simulation. The production simulation unit is configured to be able to execute, on the basis of reservation master information that is different from existing master information included in the current master, the production simulation.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a production management system, a production simulation device, a production simulation method, and a production simulation program. [Background technology]

[0002] Conventionally, there is known a production plan improvement support system that includes a production simulator that performs a simulation based on master data related to production capacity and that serves as basic information when performing work, a master data correction unit, a production index calculation unit that determines a production index value, and a production index evaluation unit (for example, Patent Document 1). In the production plan improvement support system of Patent Document 1, the master data correction unit is configured to correct values ​​related to production capacity in the master data based on actual production results data for a certain period in the past, and create corrected master data.

[0003] In addition, in the production plan improvement support system of Patent Document 1, the production simulator is configured to perform a first production simulation that simulates future production conditions using the corrected master data and actual production data up to the present. Furthermore, the production index evaluation unit is configured to compare a first production index value for a predetermined period from the past to the present with a second production index value for a predetermined period from the present to the future that is based on future production forecasts obtained by the first production simulation.

[0004] If the evaluation result of the production index evaluation unit is that the first production index value is greater than the second production index value, the master data correction unit creates improved master data by correcting the corrected master data with reference to the improvement scenario data, and the production simulator performs a second production simulation to execute a process for determining the production index value. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-174334 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the production plan improvement support system of Patent Document 1, in order to perform a simulation of future production status as described above, it is necessary to create corrected master data that reflects the corrections. Therefore, in the production plan improvement support system of Patent Document 1, even if, for example, as a result of consideration, it is desired to maintain the original master data, it is necessary to correct the corrected master data again and create original master data, which results in the problem of unnecessary man-hours.

[0007] Furthermore, in the production plan improvement support system of Patent Document 1, even if it is desired to change the master data in the future, in order to perform a production simulation based on the changed master data, it is necessary to modify the master data at the time of the simulation. Therefore, in the production plan improvement support system of Patent Document 1, changes to the master data may cause problems at the time of the simulation or in the immediate future.

[0008] One aspect of the present invention is a production management system, a production simulation device, a production simulation method, and a production simulation program that can efficiently simulate the review of a production plan that involves changes to master information. [Means for solving the problem]

[0009] A production management system according to one aspect of the present invention comprises a production management unit that manages masters used for production management, and a production simulation unit that acquires master information contained in the masters from the production management unit and performs a production simulation based on the master information, wherein the production simulation unit is configured to be able to perform the production simulation based on reserved master information that differs from existing master information currently contained in the masters.

[0010] A production simulation device according to one aspect of the present invention includes a control unit that acquires master information contained in a master used for production management and performs a production simulation based on the master information, and the control unit is configured to be able to execute the production simulation based on reserved master information that is different from existing master information currently contained in the master.

[0011] A method according to one aspect of the present invention acquires master information contained in a master used for production management, and a production simulation device that performs a production simulation based on the master information executes the production simulation based on reserved master information that is different from existing master information currently contained in the master.

[0012] A program according to one aspect of the present invention acquires master information contained in a master used for production management, and causes a production simulation device that performs a production simulation based on the master information to acquire reserved master information that is different from existing master information currently contained in the master and perform the production simulation.

[0013] According to a production management system, a production simulation device, a production simulation method, and a production simulation program of one aspect of the present invention, the production simulation can be executed based on reservation master information that differs from the existing master information contained in the current master, and therefore, it is possible to efficiently simulate the review of a production plan that involves changes to master information. [Effects of the Invention]

[0014] According to the production management system, production simulation device, production simulation method, and production simulation program of one aspect of the present invention, it is possible to efficiently simulate the review of a production plan that involves changes to master information. [Brief explanation of the drawings]

[0015] [Figure 1]FIG. 1 is a functional block diagram showing a production management system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram showing the production management device according to this embodiment. [Figure 3] FIG. 3 is a schematic diagram showing a production simulation device according to this embodiment. [Figure 4] FIG. 4 is a schematic diagram showing a master change reservation device according to this embodiment. [Figure 5] FIG. 5 is a diagram showing an example of order information according to this embodiment. [Figure 6] FIG. 6 is a diagram showing an example of product information according to this embodiment. [Figure 7] FIG. 7 is a diagram showing a product information registration screen for product A according to this embodiment. [Figure 8] FIG. 8 is a diagram showing a product information registration screen for part A1 according to this embodiment. [Figure 9] FIG. 9 is a diagram showing a product information registration screen for part A2 according to this embodiment. [Figure 10] FIG. 10 is a diagram showing a product information registration screen for part A3 according to this embodiment. [Figure 11] FIG. 11 is a diagram showing an example of the results of the production simulation according to this embodiment. [Figure 12] FIG. 12 is a diagram showing product information of product A when part A2 according to this embodiment is produced in-house. [Figure 13] FIG. 13 is a diagram showing a product information registration screen for part A2 in the case where part A2 is manufactured in-house according to this embodiment. [Figure 14] FIG. 14 is a diagram showing the results of a production simulation in the case where the part A2 according to this embodiment is produced in-house. [Figure 15] FIG. 15 is a diagram showing the results of a production simulation in the case where the part A3 according to this embodiment is produced in-house. [Figure 16] FIG. 16 is a flowchart showing a series of processes executed by the production management system of this embodiment. [Figure 17]FIG. 17 is a flowchart showing a series of processes executed by the production management system of this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] The best mode for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0017] [Overall configuration of the production management system according to this embodiment] FIG. 1 is a functional block diagram showing a production management system according to an embodiment of the present invention. First, a production management system 1 according to an embodiment of the present invention will be outlined with reference to Fig. 1. As shown in Fig. 1, the production management system 1 according to this embodiment generally comprises a production management device 10 that functions as a production management unit, a production simulation device 100 that functions as a production simulation unit, and a master change reservation device 200 that functions as a master change reservation unit.

[0018] FIG. 2 is a schematic diagram showing the production management device according to this embodiment. 2, the production management device 10 includes an input unit 20, a display unit 30, a control unit 40, and a storage unit 50. The production management device 10 according to this embodiment is, for example, an electronic computer such as a desktop personal computer, a laptop computer, or a tablet terminal.

[0019] The input unit 20 is composed of input devices such as a keyboard, a mouse, a touchpad, a joystick, etc., and by operating the input unit 20, in addition to the information input function normally required in the production management device 10, it is possible to perform operations such as changing the product information 54 described below.

[0020] Fig. 7 is a diagram showing a product information registration screen for product A according to this embodiment. Fig. 13 is a diagram showing a product information registration screen for part A2 when part A2 according to this embodiment is manufactured in-house. The display unit 30 has a display as a display device. In addition to the screen display functions normally required in the production management device 10, the display unit 30 displays a product information registration screen 32 and the like. As shown in FIGS. 7 and 13 , the product information registration screen 32 includes a configuration information display area 32a, a configuration information change reservation button 32b, a configuration information change reservation tab 32c, a process information display area 32d, a process information change reservation button 32e, and a process information change reservation tab 32f. On the product information registration screen 32, the user can check product information 54 of products and parts and change the product information 54.

[0021] As shown in Fig. 7, the configuration information display area 32a displays information about component parts (described later) of the product or part displayed on the product information registration screen 32. By selecting the configuration information change reservation button 32b, a configuration information change reservation tab 32c is created, as shown in Fig. 13. The configuration information change reservation tab 32c is a tab that displays changes to the information about the component parts.

[0022] The configuration information change reservation tab 32c displays information about the component parts after the change of the product or part displayed on the product information registration screen 32. The information about the component parts displayed on the configuration information change reservation tab 32c is information about the newly input component parts (reservation master information, which will be described later) or information similar to the information about the component parts displayed in the configuration information display area 32a (copied existing master information, which will be described later).

[0023] The user can register changes to the information about the component by entering new information about the changed component in the configuration information change reservation tab 32c, or by editing information similar to the information about the component displayed in the configuration information display area 32a. The user can also reserve a change to the information about the component (a change to the product information 54) in the master change reservation device 200 by entering a specified date and time in the configuration information change reservation tab 32c. If multiple change reservations, as described below, have been made, multiple configuration information change reservation tabs 32c are displayed, one for each specified date and time. The specified date and time can also be changed after the change reservation has been made.

[0024] The process information display area 32d displays information about the process (described later) of the product or part displayed on the product information registration screen 32. By selecting the process information change reservation button 32e, a process information change reservation tab 32f is created, as shown in Fig. 13. The process information change reservation tab 32f is a tab that displays the changes to the information about the process.

[0025] The process information change reservation tab 32f displays information related to the process after the change of the product or part displayed on the product information registration screen 32. The information related to the process displayed in the process information change reservation tab 32f is information related to the newly entered process (reservation master information) or information similar to the information related to the process displayed in the process information display area 32d (copied existing master information).

[0026] The user can register changes to the information about the process by entering new information about the changed process in the process information change reservation tab 32f, or by editing the same information as the information about the process displayed in the process information display area 32d. The user can also reserve a change to the information about the process (a change to the product information 54) in the master change reservation device 200 by entering a specified date and time in the process information change reservation tab 32f. If multiple change reservations have been made, multiple process information change reservation tabs 32f are displayed, one for each specified date and time. The specified date and time can also be changed after the change reservation has been made.

[0027] Furthermore, the display unit 30 may be configured as a touch panel (touch screen) having the functions of the input unit 20. When the display unit 30 is configured as a touch panel, the user can perform various operations on the production management device 10, such as changing the product information 54, by operating the display unit 30, for example.

[0028] The configurations of the input unit 20 and the display unit 30 are not limited to those described above, and any configuration having equivalent functions (for example, a display means or input means that can be used remotely) can be used instead of the input unit 20 and the display unit 30, and is not limited to this.

[0029] The control unit 40 is configured, for example, by an integrated arithmetic processing device having a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit). The control unit 40 is also configured to register order information 52 and product information 54.

[0030] FIG. 5 is a diagram showing an example of order information according to this embodiment. Specifically, when an order is received from a business partner, order information 52 is passed to the production management device 10, as shown in Fig. 5. In this embodiment, the order information 52 includes the order recipient (business partner), the delivery date of the product, the product name of the product, and the quantity of the product to be ordered. The control unit 40 is configured to register the order information 52 in an order master 51 (to be described later) in the storage unit 50.

[0031] FIG. 6 is a diagram showing an example of product information according to this embodiment. Simultaneously with the order information 52, drawings and CAD (Computer Aided Design) information relating to the product are sent to the production management device 10. As shown in Fig. 6, the control unit 40 is configured to disassemble the product into its component parts based on the drawings and CAD information, design the processing procedures (processes) for each part, create product information 54, and register it in a product master 53 (described later) in the storage unit 50.

[0032] Fig. 8 is a diagram showing a product information registration screen for part A1 according to this embodiment, Fig. 9 is a diagram showing a product information registration screen for part A2 according to this embodiment, and Fig. 10 is a diagram showing a product information registration screen for part A3 according to this embodiment. Product information 54 shown in Figure 6 is information relating to "Product A." "Product A" is composed of "Part A1," "Part A2," and "Part A3," as shown in Figures 6 and 7. "Part A1" is produced in-house, and as shown in Figure 8, it is composed of only a single "Part A1," and is a part that cannot be disassembled into further component parts. "Part A2" and "Part A3" are outsourced, and as shown in Figures 9 and 10, they are not disassembled into further component parts.

[0033] Furthermore, the control unit 40 is configured to manage masters used for production management. Specifically, the control unit 40 is configured to manage an order master 51, a product master 53, and an equipment master 55 (described later) stored in the storage unit 50.

[0034] The storage unit 50 has a storage medium such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and stores various data in a readable and writable manner. As shown in Fig. 2, the storage unit 50 stores an order master 51, a product master 53, and an equipment master 55. Furthermore, the storage unit 50 stores programs required for controlling each part of the production management device 10.

[0035] The order master 51 has registered therein a plurality of pieces of order information 52. The product master 53 has registered therein a plurality of pieces of product information 54. The equipment master 55 has registered therein equipment information 56 relating to the equipment used in each process. The product information 54 includes information relating to component parts and information relating to the process.

[0036] FIG. 3 is a schematic diagram showing a production simulation device according to this embodiment. 3, the production simulation device 100 includes an input unit 110, a display unit 120, a control unit 130, and a storage unit 140. The production simulation device 100 according to this embodiment is, for example, an electronic computer such as a desktop personal computer, a notebook computer, or a tablet terminal.

[0037] The input unit 110 is composed of input devices such as a keyboard, mouse, touchpad, joystick, etc., and by operating the input unit 110, in addition to the information input function normally required in the production simulation device 100, it is possible to perform operations such as issuing instructions for the production simulation, which will be described later.

[0038] The display unit 120 has a display as a display device. In addition to the screen display function normally required in the production simulation device 100, the display unit 120 displays the results of the production simulation and the like.

[0039] The display unit 120 may be configured as a touch panel having the functions of the input unit 110. When the display unit 120 is configured as a touch panel, the user can, for example, operate the display unit 120 to perform various operations on the production simulation device 100, such as issuing instructions for the production simulation.

[0040] The configurations of the input unit 110 and the display unit 120 are not limited to those described above, and any configuration having equivalent functions (for example, a display means or input means that can be used remotely) can be used in place of the input unit 110 and the display unit 120, and is not limited to this.

[0041] The control unit 130 is configured, for example, by an integrated processing unit having a CPU and a GPU. The control unit 130 is also configured to acquire master information contained in the master from the production management device 10 and perform a production simulation based on the master information.

[0042] FIG. 11 is a diagram showing an example of the results of the production simulation according to this embodiment. Specifically, as shown in FIG. 1, the control unit 130 is configured to acquire existing master information required for the production simulation from the order master 51, product master 53, and equipment master 55 of the production management device 10, and to perform the production simulation.

[0043] In this embodiment, the existing master information is at least one of the order information 52 of the order master 51, the product information 54 of the product master 53, and the equipment information 56 of the equipment master 55 stored in the memory unit 50 of the production management device 10.

[0044] For example, as shown in Fig. 11, the control unit 130 executes a production simulation of the production load and displays the results of the production simulation on the display unit 120. The results of the production simulation shown in Fig. 11 are the results of simulating the ratio of the production load and production capacity of the welding process on a weekly basis. The production simulation includes orders received before a production instruction is issued.

[0045] The control unit 130 is also configured to be able to execute a production simulation based on reservation master information that differs from the existing master information included in the current master. Specifically, as shown in Fig. 1, the control unit 130 is configured to acquire necessary reservation master information from a reservation master 241 (described later) of the master change reservation device 200 and execute a production simulation.

[0046] In this embodiment, the current master is at least one of the order master 51, the product master 53, and the equipment master 55 stored in the storage unit 50 of the production management device 10.

[0047] The control unit 130 having such a configuration is configured to simulate the production load before the specified date and time specified in the reservation acceptance process described below based on existing master information, and to simulate the production load after the specified date and time based on reservation master information.

[0048] In the production management system 1 according to this embodiment, if production arrangements have already been instructed, the production schedule is fixed and cannot be changed. However, if production arrangements have not yet been instructed, the production load can be adjusted by changing the process design of parts and considering in-house or outsourcing of parts based on the results of a production simulation performed based on existing master information and reservation master information.

[0049] Furthermore, by utilizing reservation master information, it is possible to carry out not only the above-mentioned simulation of in-house production of parts that are scheduled to be outsourced, but also, for example, simulation of changes in production load due to equipment updates, and simulation of production load that takes into account a decrease in capacity during equipment maintenance.

[0050] The storage unit 140 has a storage medium such as an HDD or SSD, and stores various data in a readable and writable manner. As shown in Fig. 3, the storage unit 140 stores a production simulation program 141. Furthermore, the storage unit 140 stores programs necessary for controlling each part of the production simulation device 100.

[0051] The production simulation program 141 causes the production simulation device 100 to acquire reservation master information that is different from the existing master information included in the current master and execute a production simulation.

[0052] FIG. 4 is a schematic diagram showing a master change reservation device according to this embodiment. 4, the master change reservation device 200 includes an input unit 210, a display unit 220, a control unit 230, and a storage unit 240. The master change reservation device 200 according to this embodiment is, for example, an electronic computer such as a desktop computer, a laptop computer, or a tablet terminal.

[0053] The input unit 210 is composed of input devices such as a keyboard, mouse, touchpad, joystick, etc., and by operating the input unit 210, in addition to the information input function normally required in the master change reservation device 200, operations such as canceling a change reservation, as described below, can be performed.

[0054] The display unit 220 has a display as a display device. In addition to the screen display function normally required in the master change reservation device 200, the display unit 220 displays a change reservation screen (not shown) that displays a list of change reservations, etc.

[0055] The display unit 220 may be configured as a touch panel having the functions of the input unit 210. When the display unit 220 is configured as a touch panel, the user can perform various operations on the master change reservation device 200, such as canceling a change reservation, by operating the display unit 220, for example.

[0056] The configurations of the input unit 210 and the display unit 220 are not limited to those described above, and any configuration having equivalent functions (for example, a display means or input means that can be used remotely) can be used in place of the input unit 210 and the display unit 220, and is not limited to this.

[0057] The control unit 230 is configured, for example, by an integrated processing unit having a CPU and a GPU. The control unit 230 is also configured to be able to update the master by overwriting existing master information with reserved master information at a predetermined date and time.

[0058] Specifically, the control unit 230 is configured to be able to execute a reservation acceptance process that accepts reservations for changing master information, and a master change process that automatically overwrites existing master information with the reservation master information set in the reservation acceptance process at a specified date and time specified in the reservation acceptance process.

[0059] Furthermore, the control unit 230 is configured to be able to execute a reservation cancellation acceptance process that accepts the cancellation of a changed reservation accepted in the reservation acceptance process, a designated date and time determination process that determines whether the designated date and time specified in the reservation acceptance process has passed, and a reservation cancellation process that cancels the changed reservation specified in the reservation cancellation acceptance process if it is determined that the designated date and time has not passed.

[0060] The storage unit 240 has a storage medium such as an HDD or SSD, and stores various data in a readable and writable manner. As shown in FIG. 4, the storage unit 240 stores a reservation master 241. Furthermore, the storage unit 240 stores programs necessary for controlling each part of the master change reservation device 200. The reservation master 241 includes reservation information 242. The reservation information 242 includes reservation master information of at least one of the order information 52, product information 54, and equipment information 56, and a specified date and time for overwriting the existing master information onto the reservation master information.

[0061] [Production management method according to this embodiment] 16 and 17 are flowcharts showing a series of processes executed by the production management system of this embodiment. Next, the production simulation method of the production management system 1 according to this embodiment will be described with reference to Figures 16 and 17. In the production management method of the production management system 1 according to this embodiment, the production simulation device 100 executes a production simulation based on reservation master information that differs from the existing master information included in the current master. The production simulation device 100 may execute a production simulation not only based on the reservation master information but also using both the reservation master information and the existing master information.

[0062] In this embodiment, a production simulation method for considering in-house production (updating master information) of "Part A2" and "Part A3" of "Product A" based on the results of the production simulation shown in FIG. 11 will be described, but the production simulation method of the production management system 1 is not limited to this.

[0063] The production simulation results shown in Figure 11 indicate that the production load two months from now is low and there is surplus production capacity, so it is possible to consider in-house production of parts that have been outsourced, such as "Part A2" and "Part A3." First, a production simulation method for considering in-house production of "Part A2" will be explained with reference to Figure 16.

[0064] When outsourced parts are produced in-house, the product information 54 in the product master 53 needs to be changed by disassembling and registering the constituent parts of the outsourced parts, etc., and the product master 53 needs to be updated. When "Part A2" of "Product A" is produced in-house, "Part A2" is further disassembled into constituent parts "Part A2-1" and "Part A2-2" as shown in Figure 12.

[0065] As shown in FIG. 13, the user operates the production management device 10 to change the product information 54 for "part A2" on the product information registration screen 32. Specifically, first, the user selects the configuration information change reservation button 32b on the product information registration screen 32 to create a configuration information change reservation tab 32c. Next, the user inputs (sets) information about the component parts "part A2-1" and "part A2-2," which are the component parts of "part A2," into the created configuration information change reservation tab 32c. The information about the component parts "part A2-1" and "part A2-2" may be newly created, or information about the component parts of "part A2" displayed in the configuration information display area 32a may be duplicated and edited.

[0066] The user also selects the process information change reservation button 32e on the product information registration screen 32 to create a process information change reservation tab 32f. The user then inputs (sets) information related to the process of "Part A2" into the created process information change reservation tab 32f. The information related to the process of "Part A2" is newly created.

[0067] Thereafter, the user reserves a change to the product information 54 of "Part A2" in the master change reservation device 200 (S1 in FIG. 16: master information change reservation process). At this time, if the user wants to start in-house production from one month from now, the specified date and time to be input into the configuration information change reservation tab 32c and the process information change reservation tab 32f is set to a date and time one month from now.

[0068] Then, the control unit 230 of the master change reservation device 200 accepts the change reservation for the product information 54 (information related to the component and information related to the process) of "part A2" entered in the configuration information change reservation tab 32c and the process information change reservation tab 32f of the product information registration screen 32 at the specified date and time entered in the configuration information change reservation tab 32c and the process information change reservation tab 32f (S30 in FIG. 16: reservation acceptance step). Furthermore, the master change reservation device 200 stores reservation information 242 related to the accepted change reservation in the reservation master 241 of the storage unit 240.

[0069] Thereafter, the user operates the production simulation device 100 to cause the control unit 130 of the production simulation device 100 to execute a production simulation of the production load when "Part A2" is produced in-house (S2 in FIG. 16: simulation instruction step). Specifically, first, the control unit 130 of the production simulation device 100 acquires existing master information required for the production simulation from the order master 51, product master 53, and equipment master 55 stored in the storage unit 50 of the production management device 10 (S20 in FIG. 16: existing master information acquisition step).

[0070] Simultaneously with or after the existing master information acquisition step, the control unit 130 of the production simulation device 100 acquires necessary reservation master information from the reservation master 241 stored in the storage unit 240 of the master change reservation device 200 (S21 in FIG. 16: reservation master information acquisition step). The acquired reservation master information includes the reservation master information of "Part A2".

[0071] Then, the control unit 130 of the production simulation device 100 performs a production simulation based on the acquired existing master information and reservation master information (S22 in FIG. 16: production simulation step). When performing the production simulation, the control unit 130 of the production simulation device 100 simulates the production load before the specified date and time based on the existing master information, and simulates the production load after the specified date and time based on the reservation master information.

[0072] FIG. 14 is a diagram showing the results of a production simulation in the case where the part A2 according to this embodiment is produced in-house. After the production simulation is executed, the control unit 130 of the production simulation device 100 displays the results of the production simulation for the case where "Part A2" is produced in-house on the display unit 120 of the production simulation device 100, as shown in FIG. 14 (S23 in FIG. 16: Simulation result output step). If "Part A2" is produced in-house, the production load two months from now will increase, but because it does not exceed the production capacity limit, it can be seen that there is a low possibility of problems occurring during production. Therefore, the user can determine that "Part A2" can be produced in-house.

[0073] Thereafter, the control unit 230 of the master change reservation device 200 determines whether the designated date and time designated in the reservation acceptance process has arrived (S31 in FIG. 16: designated date and time determination process). If it is determined that the designated date and time has arrived (YES in S31 in FIG. 16), the control unit 230 of the master change reservation device 200 overwrites the existing master information (in this embodiment, the product information 54 of "part A2" in the product master 53 of the production management device 10) with the reservation master information set in the reservation acceptance process (S32 in FIG. 16: master change process).

[0074] In the production management device 10, the existing master information in the storage unit 50 is overwritten with the reservation master information, thereby updating the master (product master 53 in this embodiment) (S10 in FIG. 16: master update step).

[0075] Next, a production simulation method for further examining the in-house production of "Part A3" based on the results of examining the in-house production of "Part A2" will be described with reference to Figure 17. When "Part A3" of "Product A" is to be produced in-house, it is further decomposed into component parts, just like "Part A2".

[0076] The user operates the production management device 10 in the same procedure as when considering in-house production of "Part A2," changes the product information 54 of "Part A3" on the product information registration screen 32, and reserves the change to the product information 54 of "Part A3" in the master change reservation device 200 (S100 in Figure 17: master information change reservation process).

[0077] Then, the control unit 230 of the master change reservation device 200 accepts a change reservation for the product information 54 (information on component parts and information on process) of "part A3" at the specified date and time (S130 in FIG. 17: reservation acceptance step). Also, the master change reservation device 200 stores reservation information 242 related to the accepted change reservation in the reservation master 241 of the storage unit 240.

[0078] Thereafter, the user operates the production simulation device 100 to cause the control unit 130 of the production simulation device 100 to execute a production simulation of the production load when "Part A3" is produced in-house (S101 in FIG. 17: simulation instruction step). Specifically, first, the control unit 130 of the production simulation device 100 acquires existing master information required for the production simulation from the order master 51, product master 53, and equipment master 55 stored in the storage unit 50 of the production management device 10 (S120 in FIG. 17: existing master information acquisition step).

[0079] Simultaneously with or after the existing master information acquisition step, the control unit 130 of the production simulation device 100 acquires necessary reservation master information from the reservation master 241 stored in the storage unit 240 of the master change reservation device 200 (S121 in FIG. 17: reservation master information acquisition step). The acquired reservation master information includes the reservation master information of "part A3". Furthermore, if it is before the specified date and time for changing the master information of "part A2", the reservation master information of "part A2" is also included.

[0080] Then, the control unit 130 of the production simulation device 100 performs a production simulation based on the acquired existing master information and reservation master information (S122 in FIG. 17: production simulation step). When performing the production simulation, the control unit 130 of the production simulation device 100 simulates the production load before the specified date and time based on the existing master information, and simulates the production load after the specified date and time based on the reservation master information.

[0081] FIG. 15 is a diagram showing the results of a production simulation in the case where the part A3 according to this embodiment is produced in-house. After the production simulation is executed, the control unit 130 of the production simulation device 100 displays the results of the production simulation for the case where "Part A3" is produced in-house on the display unit 120 of the production simulation device 100, as shown in FIG. 15 (S123 in FIG. 17: Simulation result output step). It can be seen that if "Part A3" is produced in-house in addition to "Part A2," the production load will exceed production capacity, and there is a high possibility that problems will occur during production, such as delivery delays. Therefore, the user can determine that it would be better to outsource "Part A3" rather than produce it in-house.

[0082] In this case, the user operates the master change reservation device 200 to cancel the change reservation for "part A3" that has been set (S102 in FIG. 17: reservation cancellation step). The control unit 230 of the master change reservation device 200 accepts the cancellation of the change reservation for "part A3" that has been accepted in the reservation acceptance step (S131 in FIG. 17: reservation cancellation acceptance step).

[0083] Then, the control unit 230 of the master change reservation device 200 determines whether the specified date and time for "part A3" specified in the reservation acceptance process has passed (S132 in FIG. 17: specified date and time judgment process). If it is determined that the specified date and time for "part A3" has not passed (NO in S132 in FIG. 17), the change reservation for "part A3" specified in the reservation cancellation acceptance process is canceled (the change reservation is deleted) (S134 in FIG. 17: reservation cancellation process).

[0084] On the other hand, if it is determined that the specified date and time for "part A3" has passed (YES in S132 of FIG. 17), the control unit 230 of the master change reservation device 200 overwrites the existing master information (in this embodiment, the product information 54 for "part A2" in the product master 53 of the production management device 10) with the reservation master information set in the reservation acceptance process (S133 in FIG. 17: master change process). Through the above processes, a series of production simulation methods are executed by the production management system 1 according to this embodiment.

[0085] [Advantages of the production management system, production simulation device, production simulation method, and production simulation program according to the present embodiment] As described above, the production management system 1 according to this embodiment comprises a production management section (in this embodiment, the production management device 10) that manages the masters used for production management, and a production simulation section (in this embodiment, the production simulation device 100) that acquires master information contained in the masters from the production management section (in this embodiment, the production management device 10) and performs a production simulation based on the master information, and the production simulation section (in this embodiment, the production simulation device 100) is configured to be able to execute a production simulation based on reserved master information that differs from the existing master information contained in the current masters.

[0086] By having such a configuration, the production management system 1 according to this embodiment is configured to be able to execute a production simulation based on reservation master information that is different from the existing master information contained in the current master, and since the modified master information that one wishes to consider can be used as reservation master information in the production simulation while maintaining the original master information (existing master information in this embodiment), it has the advantage of being able to efficiently simulate the consideration of a production plan that involves changing master information.

[0087] Furthermore, since the system is configured to be able to execute a production simulation based on reservation master information while maintaining the existing master information as the current master, it has the advantage that the production simulation can be executed without causing any disruption to the business that uses the current master.

[0088] Furthermore, the production management system 1 according to this embodiment includes a master change reservation unit (in this embodiment, a master change reservation device 200) that can update the master by overwriting existing master information with reservation master information at a predetermined date and time. This configuration has the advantage of enabling existing master information to be automatically overwritten on actually considered reservation master information, thereby enabling efficient simulation of the consideration of a production plan that involves changes to master information.

[0089] Furthermore, in the production management system 1 according to this embodiment, the master change reservation unit (in this embodiment, the master change reservation device 200) is configured to be able to execute a reservation acceptance process that accepts a reservation for changing master information, and a master change process that automatically overwrites existing master information with reservation master information set in the reservation acceptance process at a specified date and time specified in the reservation acceptance process. With this configuration, when it is desired to change the master information in the future, it is possible to first perform a simulation based on the reservation master information, and then automatically update the master at the date and time when it is desired to change the existing master information to the reservation master information, which has the advantage of being able to efficiently simulate the consideration of a production plan that involves changing the master information.

[0090] Furthermore, in the production management system 1 according to this embodiment, the production simulation unit (production simulation device 100) is configured to simulate the production load before the specified date and time based on the existing master information, and to simulate the production load after the specified date and time based on the reservation master information. This configuration has the advantage that the production load before and after the specified date and time can be simulated using both the existing master information and the reservation master information, allowing efficient simulation of the review of a production plan that involves changes to the master information.

[0091] Furthermore, in the production management system 1 according to this embodiment, the production simulation unit (production simulation device 100) is configured to be able to execute a reservation cancellation acceptance process that accepts the cancellation of a change reservation accepted in the reservation acceptance process, a designated date and time determination process that determines whether the specified date and time specified in the reservation acceptance process has passed, and a reservation cancellation process that cancels the change reservation specified in the reservation cancellation acceptance process if it is determined that the specified date and time has not passed. This configuration prevents the existing master information from being overwritten until the specified date and time, and by canceling the change reservation, it is possible to cancel only the reservation master information while maintaining the existing master information. This has the advantage that if a problem occurs as a result of a production simulation based on the reservation master information, no work needs to be done to correct the existing master information, thereby enabling efficient simulation of production planning that involves changing master information.

[0092] [Variations] Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above-described embodiments. Various modifications and improvements can be made to the above-described embodiments.

[0093] For example, in the above-described embodiment, the production management system 1 has been described as having a master change reservation unit (in this embodiment, the master change reservation device 200) that can update the master by overwriting existing master information with reserved master information at a specified date and time, but this is not limited to this, and the production management system 1 does not have to have a master change reservation unit (in this embodiment, the master change reservation device 200).

[0094] In the above-described embodiment, the master change reservation unit (in this embodiment, the master change reservation device 200) has been described as being configured to be able to execute a reservation acceptance process that accepts a reservation for changing master information and a master change process that automatically overwrites existing master information with reservation master information set in the reservation acceptance process at a specified date and time specified in the reservation acceptance process, but this is not limiting. The master change reservation unit (in this embodiment, the master change reservation device 200) does not necessarily have to be able to execute the reservation change acceptance process and the master change process.

[0095] In the above-described embodiment, the production simulation unit (production simulation device 100) has been described as being configured to simulate the production load before the specified date and time based on existing master information, and to simulate the production load after the specified date and time based on reservation master information, but this is not limiting. The production simulation unit (production simulation device 100) does not have to be able to simulate the production load before the specified date and time based on existing master information, and to simulate the production load after the specified date and time based on reservation master information. In other words, the production simulation unit (production simulation device 100) may be configured to be able to perform a simulation based on only either existing master information or reservation master information in a single production simulation.

[0096] In the above-described embodiment, the production simulation unit (production simulation device 100) has been described as being configured to be able to execute a reservation cancellation acceptance process that accepts the cancellation of a change reservation accepted in the reservation acceptance process, a designated date and time determination process that determines whether the designated date and time specified in the reservation acceptance process has passed, and a reservation cancellation process that cancels the change reservation specified in the reservation cancellation acceptance process if it is determined that the designated date and time has not passed, but this is not limiting. The production simulation unit (production simulation device 100) does not necessarily have to be able to execute the reservation cancellation acceptance process, the designated date and time determination process, and the reservation cancellation acceptance process.

[0097] In the above-described embodiment, the production management system 1 has been described as including the production management device 10, the production simulation device 100, and the master change reservation device 200, but is not limited to this. The production management system 1 may also include a device in which the functions of the production management device 10, the production simulation device 100, and the master change reservation device 200 are integrated into one device.

[0098] In the above-described embodiment, the user checks the results of the production simulation to determine whether the product and parts can be produced in-house, but the present invention is not limited to this. The production simulation device 100 may be configured to determine whether the product and parts can be produced in-house based on the results of the production simulation, and if it determines that the product and parts cannot be produced in-house, the production simulation device 100 instructs the master change reservation device 200 to cancel the change reservation.

[0099] In the above-described embodiment, the production simulation device 100 is described as executing a production simulation when instructed by a user, but this is not limiting. When the master change reservation device 200 executes a reservation acceptance process, the production simulation device 100 may automatically execute a production simulation based on the reservation master information set in the reservation acceptance process. [Explanation of symbols]

[0100] 1 Production management system 10 Production control device 20 Input section 30 Display section 32 Product Information Registration Screen 32a Configuration information display area 32b Configuration information change reservation button 32c Configuration Information Change Reservation Tab 32d Process information display area 32e Process information change reservation button 32f Process information change reservation tab 40 Control Unit 50 Storage section 51 Order Master 52 Order Information 53 Product Master 54 Product Information 55 Equipment Master 56 Equipment information 100 Production Simulation Device 110 Input section 120 Display section 130 Control Unit 140 Storage section 141 Production Simulation Program 200 Master change reservation device 210 Input section 220 Display section 230 Control Unit 240 Storage section 241 Reservation Master 242 Reservation Information

Claims

1. a production management department that manages master data used in production management; a production simulation unit that acquires master information included in the master from the production management unit and performs a production simulation based on the master information; Equipped with The production simulation unit is configured to be able to execute the production simulation based on reservation master information that is different from existing master information included in the current master. Production management system.

2. A master change reservation unit is provided that can update the master by overwriting the existing master information with the reserved master information at a predetermined date and time. The production management system according to claim 1 .

3. The master change reservation unit a reservation acceptance process for accepting a reservation for changing the master information; a master change process that automatically overwrites the existing master information with the reservation master information set in the reservation acceptance process at a specified date and time specified in the reservation acceptance process; is configured to run The production management system according to claim 2 .

4. The production simulation unit is configured to be able to simulate a production load before the specified date and time based on the existing master information, and to simulate the production load after the specified date and time based on the reservation master information. The production management system according to claim 3 .

5. The production simulation unit a reservation cancellation acceptance process for accepting cancellation of the changed reservation accepted in the reservation acceptance process; a designated date and time determination process for determining whether the designated date and time specified in the reservation acceptance process has passed; If it is determined that the specified date and time has not passed, a reservation cancellation process is performed to cancel the changed reservation specified in the reservation cancellation acceptance process. is configured to run The production management system according to claim 4.

6. a control unit that acquires master information included in a master used for production management and performs a production simulation based on the master information; The control unit is configured to be able to execute the production simulation based on reservation master information that is different from existing master information included in the current master. Production simulation device.

7. A production simulation device acquires master information included in a master used for production management and performs a production simulation based on the master information, and executes the production simulation based on reserved master information that is different from existing master information currently included in the master. Production simulation methods.

8. To acquire master information included in a master used for production management, and to cause a production simulation device that performs a production simulation based on the master information to acquire reserved master information different from existing master information currently included in the master and perform the production simulation. Production simulation program.

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