WO2016079843A1 - Production plan adjustment assisting device and production plan adjustment assisting method - Google Patents

Production plan adjustment assisting device and production plan adjustment assisting method Download PDF

Info

Publication number
WO2016079843A1
WO2016079843A1 PCT/JP2014/080755 JP2014080755W WO2016079843A1 WO 2016079843 A1 WO2016079843 A1 WO 2016079843A1 JP 2014080755 W JP2014080755 W JP 2014080755W WO 2016079843 A1 WO2016079843 A1 WO 2016079843A1
Authority
WO
WIPO (PCT)
Prior art keywords
production plan
information
production
date
product
Prior art date
Application number
PCT/JP2014/080755
Other languages
French (fr)
Japanese (ja)
Inventor
奈央美 泉
雅康 宇於崎
五十嵐　健
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2014/080755 priority Critical patent/WO2016079843A1/en
Publication of WO2016079843A1 publication Critical patent/WO2016079843A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/04—Manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

Definitions

  • the present invention relates to a production plan adjustment support device and a production plan adjustment support method.
  • a production plan for producing the product by the required delivery date is drawn up.
  • the master information about the relevant factory such as the bill of materials, item master, information on transportation between processes, and information on the load on the manufacturing entity during manufacturing, Based on order information from the market, customers, etc., and transaction information such as back-order information already ordered from parts suppliers, etc., the production process of the parts and production capacity necessary for the production of the corresponding products is performed.
  • the production process of the parts and production capacity necessary for the production of the corresponding products is performed.
  • each piece of information on the production plan and adjusted production plan for a given product is read from the storage device, the difference in work completion timing in the same process is calculated between the production plan and the adjusted production plan, and the calculation result is given Output to the terminal or display device, and receive a resource adjustment instruction for eliminating the divergence from a predetermined terminal or input device, and execute a process of generating a production plan with the resource information adjusted according to the adjustment instruction
  • a production plan adjustment support device (see Patent Document 1) is proposed.
  • inventories increase with the production of products, and management costs also increase.
  • there is a wasteful cost and the period from the input of various resources for product production to the collection of payment after product delivery is long.
  • cash flow will decrease, which may become a problem related to the foundation of company management.
  • An object of the present invention is to provide a technique that enables planning and adjustment of a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market. .
  • the production plan adjustment support device of the present invention that solves the above-described problems is a master information including at least a parts table of a predetermined product and information on a production capacity at a manufacturing facility, order information for the product, and parts constituting the product.
  • Transaction information including at least inventory status and procurement status information, a storage device for storing, the required quantity and required delivery date indicated by the order information as constraints, the parts table and production capacity information, and the parts
  • At least the process of allocating the parts that make up the ordered product and the allocation process of the production capacity are performed to generate a production plan, and the delivery date indicated by the production plan is earlier than the required delivery date.
  • the allocation process and the allocation process are executed again under the condition that the delivery date related to the product approaches the required delivery date.
  • An arithmetic unit for executing adjustment processing of the production plan characterized in that it comprises a.
  • the production plan adjustment support method of the present invention includes master information including at least a bill of materials of a predetermined product and information on production capacity at a manufacturing facility, order information for the product, inventory status of parts constituting the product, and An information processing apparatus including a storage device for storing transaction information including at least information on procurement status, and the information on the parts table and the production capacity, with the required quantity and the required delivery date indicated by the order information as constraints
  • master information including at least a bill of materials of a predetermined product and information on production capacity at a manufacturing facility, order information for the product, inventory status of parts constituting the product
  • An information processing apparatus including a storage device for storing transaction information including at least information on procurement status, and the information on the parts table and the production capacity, with the required quantity and the required delivery date indicated by the order information as constraints
  • a production plan is generated by performing at least the allocation process of the parts constituting the ordered product and the allocation process of the production capacity, and the delivery date indicated by the production plan is the request If it is earlier than the delivery date, the allocation
  • the present invention it is possible to make and adjust a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market.
  • FIG. 1 is a diagram illustrating a configuration example of a production plan adjustment support apparatus according to the present embodiment.
  • the production plan adjustment support apparatus 1 shown in FIG. 1 is capable of planning and adjusting a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market.
  • the production plan adjustment support apparatus 1 according to the present embodiment includes a hardware configuration illustrated in FIG. 1, for example.
  • the production plan adjustment support device 1 of the present embodiment includes an auxiliary storage device 10 configured by an appropriate nonvolatile storage device such as an SSD (SolidolState Drive) or a hard disk drive, and a main memory configured by a volatile storage device such as a RAM.
  • the device 30 and the auxiliary storage device 10 are provided with an arithmetic device 20 such as a CPU for performing overall control of the device itself by executing the program 100 by reading it into the main storage device 30 and performing various determinations, calculations and control processes.
  • a network device for using the production plan adjustment support device 1 connected to a client terminal (not shown), a display device (not shown) such as a display, and an input device (not shown) such as a keyboard and a mouse. (Shown) may be provided.
  • the transaction information storage unit 120 is stored at least.
  • the master information storage unit 110 in the above-described auxiliary storage device 10 stores parts table information 111, item information 112, inter-process information 113, process capability information 114, item load information 115, and calendar information 116.
  • the transaction information storage unit 120 stores order information 121, order remaining information 122, and inventory information 123.
  • the parts table information 111 includes, for example, a parent part 201 such as a finished product, a child part 202 constituting the parent part, and each product having each item of the number 203 of the parent part and the child part.
  • the parts table 117 is stored.
  • the information includes the parent-child relationship of items and the necessary number of child items that make up the parent item.
  • the item information 112 is a table having items of an item 301, a process 302, and a manufacturing LT (lead time) 303, and is manufactured among the processes and processes in which the item is defined.
  • Each item related to the item has information of manufacturing LT as information. Note that items for which the manufacturing LT is not defined are purchased items and items procured from the supplier.
  • inter-process information 113 is a table having items 401, a supply source process 402, a use destination process 403, and a supply LT 404, as shown in FIG. (Supply source process ⁇ use destination process) and LT at the time of supply are included as information.
  • the process capability information 114 is a table having items of the process 501 and the production capability 502, and has an upper limit value of the production capability of the process as information.
  • the item load information 115 is a table having items of an item 601, a process 602, and a unit load amount 603, and the unit load amount in the corresponding process when producing each item.
  • “Unit load amount ⁇ production quantity” is the total load amount required for manufacturing the corresponding item.
  • the calendar information 116 is a table having items of a process 701 and a holiday 702, and has a holiday (non-working day) for each process as information.
  • the corresponding day set in the item of the holiday 702 of the calendar information 116 has no free capacity in the corresponding process.
  • the order information 121 is a table having items of an order number 801, an item 802, a requested quantity 803, a requested delivery date 804, and a priority 805, and uniquely identifies an order from a customer.
  • the order number 801 to be used is an identifier, and the corresponding order information is held.
  • the above-described priority 805 is an index for deciding which order to process when executing each process related to generation and adjustment of a production plan for each order (order information) (priority). In descending order). For example, priorities such as orders from important customers and orders related to main products are higher, orders such as orders from customers with frequent order cancellations are lower, and are set in advance by a predetermined administrator. Yes. For orders with high priority, parts and production capacity are preferentially assigned, and production plans are generated and adjusted. In the present embodiment, the priority setting method is not limited.
  • the priority may be calculated and set by the production plan adjustment support apparatus 1 using a predetermined algorithm with a predetermined value such as a requested delivery date as an input, in addition to the case where the predetermined administrator sets the priority as described above.
  • the priority value is 1 or more, and the smaller the number, the higher the priority.
  • the orders are all the items of the final product, but those related to the semi-finished product (intermediate product) may be assumed.
  • the remaining order information 122 is a table having items of an ordering party 901, an item 902, an ordering quantity 903, and a scheduled receipt date 904.
  • the information on the unreceived part that is, the information on the remaining order, and the information on the scheduled date of receipt of the unreceived part.
  • the inventory information 123 is a table having items of an item 1001, a process 1002, and an inventory quantity 1003, and has inventory information of each item.
  • the functions of the production plan adjustment support apparatus 1 in this embodiment are the production plan creation unit 130 and the output data creation unit 140.
  • the arithmetic device 20 of the production plan adjustment support device 1 reads the corresponding program 100 from the auxiliary storage device 10 and loads it into the main storage device 30.
  • the functions of each program are realized by execution.
  • the production plan creation unit 130 is a function for acquiring each piece of information that the master information storage unit 110 and the transaction information storage unit 120 have, and generating a production plan and adjusting it.
  • the production plan creation unit 130 creates and holds production plan information 131, MRP expansion information 132, and load allocation result information 133 along with the processing.
  • the production plan information 131 includes, as a key, the production plan number 1101 that uniquely identifies the generated production plan, as shown in FIG. 11, the item 1102 that is the production target in the production plan, its required quantity 1103, the request
  • This is a set of records in which values corresponding to the items of the work completion date 1104 and the priority 1105 are associated.
  • Each record of the production plan information 131 is generated by assigning a production plan number 1101 for each order, that is, order information in the order information 121 (FIG. 8).
  • the requested work completion date 1104 in the production plan information 131 is set with the requested delivery date 804 of the order in the original order information 121.
  • the requested work completion date 1104 is a work completion date required to satisfy the requested delivery date 804 indicated by the order from the customer.
  • finishing date refers to the date when the manufacture or procurement of the corresponding product or part can be completed (the same applies hereinafter).
  • the MRP development information 132 uses the production plan number 1201 common to the production plan number 1101 in the production plan information 131 described above as a key and the product to be produced in the corresponding production plan.
  • MRP information information regarding MRP (Material (Requirements Planning) development such as the quantity to be procured. Therefore, it is assumed that the above-described production plan creation unit 130 includes a general program corresponding to MRP and can be appropriately called and executed.
  • the production plan creation unit 130 described above corresponds to the item 1202 corresponding to the item 1102 defined in each production plan of the production plan information 131 (FIG. 11) as the part level 1203 of each item 1202 in the MRP expansion information 132. Is set to “0”.
  • the production plan creation unit 130 indicates that the part level related to the child item of the item of the above-described part level “0” is “1”, the part level of the child item is “2”,. 117, that is, a part level value is assigned according to a hierarchy between items in BOM (Bill Of Material).
  • the required work completion date 1208 in the MRP development information 132 is the same as the value of the required work completion date 1104 in the production plan information 131 (FIG. 11) described above, and only the record of the part level “0”, that is, the MRP information is retained. is doing.
  • the earliest work completion date 1206 in the MRP development information 132 is the earliest work completion date of the part of the corresponding item in the corresponding process, while the optimum work completion date 1207 is a re-production of the corresponding production plan in order to reduce inventory. It is the work completion date obtained by adjusting.
  • the MRP development information 132 in FIG. 12 indicates a state after execution of the production plan adjustment support method of the present embodiment. At least the item of optimal work completion date 1207 is blank before the adjustment process of the production plan is executed.
  • the load allocation result information 133 described above includes the item 1302, the process 1303, the quantity 1304, and the earliest using the production plan number 1301 common to the production plan number 1201 in the MRP expansion information 132 described above as a key.
  • This is a set of records in which the values of the items of the allocation date 1305 and the optimal allocation date 1306 are associated with each other.
  • This load allocation result information 133 is a production plan creation unit for each record of the MRP expansion information 132 described above, that is, MRP information for which the production capability is defined in the process capability information 114 (FIG. 5).
  • a table 130 is generated by executing load allocation.
  • the earliest allocation date 1305 is the date when the earliest load allocation is possible for the corresponding process
  • the optimal allocation date 1306 is the load allocation date after the adjustment of the above production plan.
  • the production plan creation unit 130 of the main storage device 30 holds information on the free capacity for each day in each process at that time.
  • this vacant capacity information is not shown in a table or the like, but is shown in the development examples of FIGS. 24 to 28 and FIGS. 30 to 33 instead.
  • the output data creation unit 140 in the production plan adjustment support apparatus 1 acquires each piece of information that the transaction information storage unit 120 has, and further adjusts the adjustment result difference from the production plan information 131 created by the production plan creation unit 130 described above.
  • This is a function for creating output data such as information 141 (FIG. 14) and post-adjustment order information 142 (FIG. 15) and outputting the output data to an appropriate external device.
  • the adjustment result difference information 141 and the adjusted order information 142 will be described later.
  • the production plan adjustment support apparatus 1 in the present embodiment adopts a system date as a reference date used for production plan adjustment processing, and sets the date to “4/1”.
  • the setting form of the reference date is not limited to an example in which the system date is adopted, and a setting given as an input value from the outside may be set. --- Example of processing procedure ---
  • FIG. 16 is a diagram showing a flow example 1 of the production plan adjustment support method according to the present embodiment.
  • the production plan creation unit 130 of the production plan adjustment support device 1 creates production plan information 131 from the order information 121 in step 1600.
  • the production plan creation unit 130 of the present embodiment sets the production plan number 1101 in the production plan information 131 shown in FIG. 11 to “production plan 1” for the order whose order number 801 in the order information 121 shown in FIG. Create a production plan.
  • production plans for other orders in the order information 121 are created in the same procedure.
  • the production plan creation unit 130 extracts each value of the item 802, the requested quantity 803, the requested delivery date 804, and the priority 805 from each record in the order information 121, and this is extracted from the production plan information 131.
  • the production plan information 131 is created by setting the items 1102, the requested quantity 1103, the requested work completion date 1104, and the priority 1105 as the same values.
  • step 1700 the production plan adjustment support apparatus 1 is necessary for each production plan (“production plan 1” to “production plan 3” in the example of FIG. 11) in the production plan information 131 described above.
  • the quantity of parts is obtained using the parts table 117 and the production plan information 131 of the parts table information 111.
  • the production plan creation unit 130 identifies the child parts and the number of items 1102 defined in the production plan information 131 from the parts table 117 of the parts table information 111 and configures the item 1102. Calculate the number of required child parts.
  • the production plan creation unit 130 specifies a process defined in the item information 112 for manufacturing or procurement of the child parts. In this way, the production plan creation unit 130 that has obtained the information on the number of child parts and the process for a predetermined item registers the information in the columns 1205 and 1204 of the corresponding item 1202 in the MRP expansion information 132.
  • the production plan creation unit 130 repeats this procedure for each production plan in the production plan information 131 until the child parts are not defined in the parts table 117 of the parts table information 111 (purchased from the supplier).
  • the production plan creation unit 130 determines from the record of “production plan 1” in the production plan information 131 that the item to be produced in “production plan 1” is “product A”, its required quantity is “10”, Each value indicating that the requested construction completion date 1104 is “4/7” is read. Similarly, the production plan creation unit 130 identifies a record in which the item is “product A” in the item information 112 and reads “shop 1” as the value of the process 302 in the record.
  • the production plan creation unit 130 generates a record in which the production plan number 1201 is “production plan 1” in the MRP expansion information 132, and “product A” is stored in the item 1202 and “0” is stored in the part level 1203. “Shop 1” is set in the process 1204, “10” is set in the quantity 1205, the earliest work completion date 1206 and the optimum work completion date 1207 are blank, and the requested work completion date 1208 “4/7” is registered.
  • the setting of “0” for the part level 1203 is based on the part level concept “set the part level of the item of the production plan defined in the production plan information 131 to“ 0 ””. .
  • the production plan creation unit 130 searches the BOM 117 having “Product A” as a parent item from the BOM information 111, and the child item 202 is “Semi-product B” in the BOM 117, and its number 203 (parent The value of “1” is read for the necessary quantity of child items for one item. Therefore, in order to manufacture “10” of “product A”, “10” is required for “semi-finished product B”, and the process required to manufacture and procure “semi-finished product B” is “shop 2” from item information 112. Is required.
  • the production plan creation unit 130 generates a record in which the production plan number 1201 is “production plan 1” and the item 1202 is “semi-finished product B” in the MRP expansion information 132.
  • “1 ”,“ Shop 2 ” is set in the process 1204,“ 10 ” is set in the quantity 1205, and the items of the earliest work completion date 1206, the optimum work completion date 1207, and the requested work completion date 1208 are left blank.
  • the production plan creation unit 130 generates a record in which the production plan number 1201 is “production plan 1” and the item 1202 is “part C” in the same procedure as described above.
  • the part level 1203 has “2”.
  • Each value of “parts warehouse” is set in the process 1204 and “10” is set in the quantity 1205, and the items of the earliest work completion date 1206, the optimum work completion date 1207, and the requested work completion date 1208 are left blank.
  • part C is a terminal part (there is no item having the part C as a parent part), so “production plan 1” in this step 1700 by the production plan creation unit 130.
  • production plan creation unit 130 registers information in the MRP expansion information 132 for the remaining production plans in the production plan information 131 in the same procedure as the “production plan 1”.
  • step 1800 the production plan adjustment support device 1 calculates the earliest delivery date for each order.
  • the detailed procedure of this calculation process is shown in the flowchart of FIG.
  • the production plan creation unit 130 of the production plan adjustment support apparatus 1 has the highest priority among the unprocessed production plans in the production plan information 131, that is, the production with the smallest absolute value of the priority 1105. Select a plan. This selection is for assigning resources such as parts and production capacity in order from the highest priority, that is, the important production plan. Specifically, for example, in the processing of step 1810, a production plan in which the earliest completion date 1206 of the MRP information at the part level “0” in the MRP expansion information 132 illustrated in FIG. When there are a plurality of production plans specified here, the priority is read from the production plan information 131, and the one with the lowest priority 1105, that is, the highest priority is selected.
  • step 1820 the production plan creation unit 130 calculates the earliest work completion date in the corresponding process in order from the item having the higher part level 1203 in the production plan selected in step 1810 described above.
  • the detailed procedure regarding the calculation process of the earliest work completion date will be described with reference to the flowchart shown in FIG.
  • the production plan creation unit 130 selects a process having the maximum part level among the unprocessed items in the production plan selected in step 1810 described above. That is, the process in which the item closest to the terminal part is defined among the unprocessed items is selected and set as the processing target.
  • the production plan creation unit 130 specifies an item in which the earliest work completion date 1206 in the MRP expansion information 132 is blank. Further, as a matter of course, the earliest work completion date 1206 is blank in each record of the MRP development information 132 when the step 1821 is executed for the first time.
  • step 1822 the production plan creation unit 130 calculates the earliest fulfillment date of the unprocessed item parts to be manufactured and procured in the corresponding process for the process selected in step 1821 described above.
  • the details of the earliest satisfaction date calculation process will be described with reference to the flowchart shown in FIG.
  • step 1891 the production plan creation unit 130 executes a search in the inventory information 123 (FIG. 10) for the above-described unprocessed item parts, acquires the value of the inventory quantity 1003, and can reserve the inventory. To determine. Of course, when there is no registration of the corresponding record by the above search, the inventory quantity of the corresponding part is zero. If the result of this determination is that inventory can be allocated for that part (1891: Y), the production plan creation unit 130 advances the process to step 1892. On the other hand, as a result of the above determination, if the inventory amount is insufficient for the relevant part and allocation is impossible (1891: N), the production plan creation unit 130 advances the process to Step 1893.
  • step 1892 the production plan creation unit 130 adopts the reference date as the earliest satisfaction date of the corresponding part, and ends the earliest satisfaction date calculation process.
  • the reference date here is “4/1” as described above. This is because it is possible to take out the stock parts from the storage location in the parts warehouse during the base day.
  • step 1893 the production plan creation unit 130 executes a search with the remaining order information 122 (FIG. 9) for the above-mentioned corresponding item, obtains the value of the order quantity 903, and has already been ordered from the supplier. Determines whether it is possible to reserve the unreceived quantity, that is, the remaining order. As a result of this determination, if the remaining order can be allocated (1893: Y), the production plan creation unit 130 advances the process to step 1894. On the other hand, as a result of the above determination, if there is not enough remaining ordering and cannot be allocated (1893: N), the production plan creating unit 130 advances the process to Step 1895.
  • step 1894 the production plan creation unit 130 adopts the scheduled remaining warehousing date 904 as the earliest fulfillment date, and ends the earliest fulfillment date calculation process.
  • step 1895 the production plan creation unit 130 determines whether the part level of the corresponding part is the maximum among the items of the production plan selected in step 1810, that is, whether it is a terminal part in the BOM. Judgment is made based on the part level of each record of the production plan. As a result of this determination, if the part level of the relevant part is the maximum (1895: Y), the production plan creation unit 130 advances the process to step 1896. On the other hand, as a result of the above determination, if the part level of the relevant part is not the maximum (1895: N), the production plan creation unit 130 advances the process to Step 1897.
  • the production plan creation unit 130 calculates the earliest satisfaction date when the above-described part level is the maximum, that is, when the end part is purchased from the supplier. Specifically, the production plan creation unit 130 calculates the date when the number of days required for purchase (purchasing LT) is added to the reference date described above as the earliest satisfaction date. Note that there are various methods for defining the purchase LT for each item, for each supplier, or for giving all in common, and this means is not specified in this embodiment.
  • the production plan creation unit 130 calculates the earliest satisfaction date when the corresponding part is manufactured in another process. Specifically, the production plan creation unit 130 searches the MRP expansion information 132 for a process for manufacturing the corresponding part, that is, a supplier process, and completes the earliest work completion date in the corresponding process (from the item or process having a high part level) Therefore, it has been calculated and the result is registered in the MRP development information 132), and further, between the corresponding process, that is, the supply source process and the process selected in step 1821, that is, the use destination process.
  • the supply LT specified for is specified by the inter-process information 113, and the date when the supply LT is added to the above-mentioned earliest work completion date is calculated as the earliest fulfillment date.
  • part C of “production plan 1” in the above example can be allocated from the inventory information 123, the earliest fulfillment date is the reference date “4/1”.
  • the production plan creation unit 130 refers to the process capability information 114 (FIG. 5) and determines whether the production capability is defined for the corresponding process selected in step 1821 described above. As a result of the determination, if the production capacity is defined (1823: Y), the production plan creation unit 130 advances the process to Step 1824. On the other hand, as a result of the above determination, if the production capacity is not defined (1823: N), the production plan creation unit 130 advances the process to Step 1827. For example, if the corresponding process is “parts warehouse”, there is no record regarding “parts warehouse” in the process capability information 114 shown in FIG. 5, that is, no production capacity is defined in “parts warehouse”. Recognize. Therefore, in this case, the process proceeds to step 1827.
  • Step 1827 the production plan creation unit 130 adopts the earliest fulfillment date calculated in Step 1822 described above, that is, the flow of FIG. 19 as the earliest work completion date, and the result is the earliest work in the MRP development information 132.
  • the calculation result 52 such as the earliest work completion date for “part C” of “production plan 1” here is also shown in detail in FIG.
  • step 1828 the production plan creation unit 130 determines whether the part level of the item in the selection process in step 1821 described above is “0”, that is, a product or other semi-finished product or part. As a result of the determination, when the part level of the corresponding item is “0” (1828: Y), the production plan creation unit 130 ends the process of this flow. On the other hand, as a result of the above determination, if the part level of the corresponding item is not “0” (1828: N), the production plan creation unit 130 returns the process to step 1821. Since the part level of “part C” of “production plan 1”, which is the process selected in the flow so far in the present embodiment, is “2”, the determination result in this step 1828 is “NO”. Yes, the process returns to step 1821.
  • the production plan creation unit 130 repeats Step 1821 to Step 1828 until the determination becomes “Y” in Step 1828.
  • Step 1821 the production plan creation unit 130 repeats Step 1821 to Step 1828 until the determination becomes “Y” in Step 1828.
  • an example of “production plan 1” will be described. Note that duplicate descriptions are omitted, and only the results are described.
  • step 1821 in the description of the flow so far the production plan creation unit 130 among the records related to “production plan 1” of the MRP expansion information 132, “part C” whose part level is “2” as described above.
  • a record other than is referred to, and the item “semi-finished product B” having the component level “1” and the process “shop 2” is selected.
  • the production plan creation unit 130 calculates the earliest fulfillment date of the above-mentioned “semi-finished product B” according to the flow of FIG.
  • the “semi-finished product B” is an item that is out of stock according to the inventory information 123 (FIG. 10) and that is not scheduled to be received from the supplier according to the remaining order information 122 (FIG. 9). Accordingly, the production plan creation unit 130 recognizes that the earliest fulfillment date of “semi-finished product B” is that there is no inventory, no remaining orders, and the part level is not the maximum (in the flow of FIG.
  • Step 1823 the production plan creation unit 130 determines whether or not the above-described “semi-finished product B” process “shop 2” has a production capacity with reference to the process capability information 114 (FIG. 5). As a result of this determination, if the production capability is defined in the process capability information 114 for the corresponding process (step 1823: Y), the production plan creation unit 130 is a load allocation process target that should set the part production to the corresponding process. It is recognized that there is, and the process proceeds to Step 1824.
  • the production plan creation unit 130 advances the process to step 1827.
  • the production capacity is defined as “6” for the process “shop 2”. Therefore, the production plan creation unit 130 determines that the process “shop 2” has a production capacity.
  • the production plan creation unit 130 calculates the total load amount to be piled up by “unit load amount (of item) ⁇ production quantity”.
  • the load in a production plan means the work amount concerning production.
  • stacking means allocating work amounts to processes necessary for manufacturing each item.
  • the unit load amount of “semi-finished product B” in “shop 2” is “0.5”
  • Step 1825 the production plan creation unit 130 searches for the earliest day having the free capacity equal to or greater than the total load amount after the earliest fulfillment date as the earliest allocation date of the load.
  • the free capacity of each day of each process is managed in the main storage device 30.
  • the vacancy values of the respective steps in this embodiment are simply shown in FIGS. 24 to 28 and 30 to 33.
  • the earliest date on which the load amount “5” calculated in step 1824 can be allocated after the earliest satisfaction date “4/2” calculated for “part C” in step 1822 described above is searched. Then, it is found that the allocation can be made to “4/2” having the production capacity “6”. Therefore, the production plan creation unit 130 specifies “4/2” as the earliest allocation date when “semi-finished product B” is produced using “part C”.
  • the production plan creation unit 130 uses the values obtained so far in the load allocation result information 133 (FIG. 13) as the production plan number 1301 is “production plan 1”, the item 1302 is “half-finished product B”, and the process 1303 is “Shop 2”, quantity 1304 is registered as “10”, and earliest allocation date 1305 is registered as “4/2”. Based on this result, the free capacity of “4/2” in “Shop 2” is reduced by “5” to “1”. The transition of free capacity in “Shop 2” is shown in FIGS.
  • the production plan creation unit 130 calculates the earliest work completion date by adding the number of days of “manufacturing LT-1” to the earliest allocation date obtained in step 1825 described above.
  • the production plan creation unit 130 registers the calculation result in the item of the earliest work completion date 1207 in the records of “production plan 1” and “semi-finished product B” in the MRP development information 132.
  • the calculation result 53 such as the earliest work completion date for “semi-finished product B” of “production plan 1” is also shown in detail in FIG.
  • step 1828 the production plan creation unit 130 determines that the part level of “semi-finished product B” in the process “shop 2” selected in step 1821 this time is “1” and is not “0” (1828). : N), the process returns to step 1821.
  • step 1821 which is the third time in the present embodiment described above, the production plan creation unit 130 among the records related to “production plan 1” of the MRP expansion information 132, as described above, “part C” whose part level is “2”. ”And a record other than“ semi-finished product B ”whose part level is“ 1 ”, and the remaining item, that is, the item“ product A ”whose part level is“ 0 ”and the largest process“ shop 1 ”is selected. select.
  • the production plan creation unit 130 calculates the earliest fulfillment date of the above-mentioned “product A” in the same manner as described above according to the flow of FIG. According to the inventory information 123 (FIG. 10), this “product A” is out of stock, and since it is a final product, of course, according to the remaining order information 122 (FIG. 9), there is no planned entry from the supplier. The component level is maximum. Therefore, the production plan creation unit 130 recognizes that the earliest fulfillment date of “product A” is neither in stock nor in order, and that the part level is not the maximum (step 1891: N ⁇ 1893: N ⁇ in the flow of FIG. 19).
  • the production plan creation unit 130 calculates the supply LT from the supply source process “shop 2”, which is the delivery source of “semi-finished product B”, to the use destination process “shop 1”, which is the receipt destination.
  • step 1823 the production plan creation unit 130 determines whether or not the process “shop 1” of the above “product A” has a production capacity with reference to the process capability information 114 (FIG. 5).
  • the production capacity is defined as “10” for the process “shop 1”. Therefore, the production plan creation unit 130 determines that the process “shop 1” has a production capacity, and advances the process to step 1824.
  • the production plan creation unit 130 calculates the total load amount to be piled up by “unit load amount (of item) ⁇ production quantity”.
  • the unit load amount of “Product A” in “Shop 1” is “1”
  • Step 1825 the production plan creation unit 130 searches for the earliest day having the free capacity equal to or greater than the total load amount after the earliest fulfillment date as the earliest allocation date of the load.
  • the earliest date on which the load amount “10” calculated in step 1824 can be allocated after the earliest satisfaction date “4/3” calculated for “semi-finished product B” in step 1822 described above is searched. Then, it becomes clear that it can be assigned to “4/3” having the production capacity “10”. Therefore, the production plan creation unit 130 specifies “4/3” as the earliest allocation date when “product A” is produced using “semi-finished product B”.
  • the production plan creation unit 130 uses the values obtained so far in the load allocation result information 133 (FIG. 13) as “production plan 1” for the production plan number 130, “product A” for the item 1302, and “product A” for the process 1303. “Shop 1”, quantity 1304 is registered as “10”, and earliest allocation date 1305 is registered as “4/3”. Based on this result, the free capacity of “4/3” in “Shop 1” is reduced by “10” to “0”. The transition of the free capacity in “Shop 1” is shown in FIGS.
  • the production plan creation unit 130 calculates the earliest work completion date by adding the number of days of “manufacturing LT-1” to the earliest allocation date obtained in step 1825 described above.
  • the production plan creation unit 130 registers this calculation result in the item of the earliest work completion date 1207 in the records of “production plan 1” and “product A” in the MRP development information 132.
  • the calculation result 51 such as the earliest work completion date for “Product A” in “Production Plan 1” here is also shown in detail in FIG.
  • the process of step 1820 in the flowchart of FIG. 17 ends.
  • step 1830 the production plan creation unit 130 determines whether the required work completion date of the component level “0” is less than the earliest work completion date. As a result of this determination, if the required work completion date of the part level “0” ⁇ the earliest work completion date, that is, if the required work completion date of the part level “0” is earlier than the earliest work completion date (step 1830: Y), the production plan The creation unit 130 advances the process to Step 1840.
  • the production plan creation unit 130 proceeds with the process to step 1860.
  • the production plan creation unit 130 proceeds with the process to step 1860.
  • step 1860 the production plan creation unit 130 registers the requested work completion date “4/7” in the item of the adjusted delivery date 1404 in the adjusted order information 142 (FIG. 15).
  • the reason that the requested work completion date is the adjusted delivery date is that the earliest work completion date “4/3” is before the requested work completion date “4/7”, so that the requested delivery date from the customer can be satisfied. .
  • the production plan creation unit 130 refers to the value of the earliest work completion date 1206 set in all records of the MRP expansion information 132, and calculates the earliest work completion date for all production plans. Judge whether processed. As a result of this determination, when the value of the earliest work completion date 1206 is set in all the records of the MRP development information 132, that is, the calculation process of the earliest work completion date has been completed for all production plans (step 1870: Y ), The production plan creation unit 130 ends the process of the flow.
  • step 1870 if there is a production plan that has not been subjected to the calculation process for the earliest work completion date (step 1870: N), the production plan creation unit 130 returns the process to step 1810.
  • the processing is returned to step 1810.
  • the production plan creation unit 130 executes Steps 1810 to 1870 in the order of “Production Plan 3” to “Production Plan 2” having the highest priority according to the value of the priority 1105 in the production plan information 131.
  • “Production plan 3” follows the same flow as “production plan 1”, and the earliest work completion date is calculated.
  • the production plan creation unit 130 determines the inventory from the value of the inventory quantity 1003 of the inventory information 123 (FIG. 10) (already allocated to part C of production plan 1). It is determined that allocation is not possible, and it is determined from the value of the order quantity 903 in the remaining order information 122 (FIG. 9) that it is possible to allocate the remaining order “10”, and the earliest fulfillment date is set as the scheduled receipt date “4/1”.
  • the production capacity is not defined in the process capability information 114 for the “part warehouse” of the corresponding process, the earliest fulfillment date “4/1” is adopted as the earliest work completion date, and the earliest work in the MRP development information 132 is performed.
  • the production plan creation unit 130 executes the calculation of the earliest fulfillment date and the earliest work completion date for “half-finished product B” and “product A”, which are other items of “production plan 3”.
  • the process 1870 is executed. The result of such a series of processing is shown in FIG. As illustrated in FIG. 27, regarding “production plan 3”, the earliest work completion date is “part C” is “4/1”, “semi-finished product B” is “4/3”, and “product A” is “ 4/4 ".
  • step 1830 it is found that the requested work completion date of the part level “0” is smaller than the earliest work completion date, that is, the earliest work completion date is later than the requested work completion date (step 1830: Y). Therefore, the production plan creation unit 130 proceeds with the process to step 1840.
  • Step 1840 the production plan creation unit 130 adopts the earliest work completion date for the earliest delivery date of the order “Order2” that is the basis of “Production plan 2”. Therefore, in step 1850, the production plan creation unit 130 registers “4/9”, which is the earliest delivery date of the above-mentioned “production plan 2”, in the item of the adjusted delivery date 1404 related to “Order2” in the adjusted order information 141. .
  • step 1870 FIG. 17
  • step 1900 the production plan creation unit 130 calculates the optimal work completion date.
  • the detailed processing procedure of this step will be described with reference to the flowchart shown in FIG.
  • the production plan creation unit 130 is a record related to the item (ie, product) at the part level “0” among the records of each production plan of the MRP expansion information 132 (FIG. 12). If the item 1207 is blank, a production plan that has not been adjusted for completion of construction is searched, and the one with the lowest priority is searched again based on the value of the priority 1105 in the production plan information 131 (FIG. 11). Select as adjustment target. In the description so far regarding the present embodiment, since all production plans have not yet been adjusted for the completion date, “production plan 2” having the lowest priority “3” is selected.
  • step 1920 the production plan creation unit 130 optimizes the production plan “production plan 2” selected in step 1910 described above in order from the item with the lowest part level, that is, the item with the part level “0”. Calculate the completion date. The detailed procedure will be described according to the flow shown in FIG.
  • step 1921 the production plan creation unit 130 selects the item at the part level minimum among the items related to the process selected in step 1910 described above.
  • “shop 1” is selected as the process corresponding to the part level “0” in “production plan 2” selected in step 1910, that is, “product A”.
  • the production plan creation unit 130 determines in step 1922 whether or not the part level selected in step 1921 described above is “1” or higher. If the result of this determination is that the part level selected in step 1921 is “1” or higher (step 1922: Y), the production plan creation unit 130 advances the processing to step 1924. On the other hand, as a result of the above determination, if the part level selected in step 1921 is not “1” or higher, that is, if the part level is “0” (step 1922: N), the production plan creation unit 130 performs processing. To step 1923.
  • step 1923 the production plan creation unit 130 compares the required work completion date and the earliest work completion date with reference to the corresponding values in the MRP expansion information 132 for the process selected in step 1921 described above, Determine whether the earliest completion date is earlier than the day. If the result of this determination is that the earliest work completion date is earlier than the requested work completion date (step 1923: N), the production plan creation unit 130 advances the process to step 1924. On the other hand, as a result of the above determination, if the earliest work completion date is later than the requested work completion date (step 1923: Y), the production plan creation unit 130 advances the process to step 1925.
  • the requested work completion date in the record of the part level “0” of “production plan 2” is “4/7”, and the earliest work completion date is “4/9”. . Therefore, in this case, the earliest work completion date is later than the requested work completion date, and the process proceeds to Step 1925.
  • step 1925 the production plan creation unit 130 adopts the earliest work completion date as the optimum work completion date, and registers it in the item of the optimum work completion date 1207 of the record of the minimum part level of the corresponding production plan in the MRP expansion information 132. .
  • “4/9” is registered as the value of the optimal work completion date 1207 of the part level “0” of the “production plan 2”.
  • the production plan creation unit 130 determines whether or not the optimal work completion date has been processed for all the processes of the production plan in the MRP expansion information 132. This determination is a process of determining that the optimal work completion date has been processed for the corresponding production plan if a value is registered in the item of the optimal work completion date 1207 in each record of the corresponding production plan of the MRP development information 132. . If the result of this determination is that the optimal work completion date has been processed for all the processes of the production plan (step 1926: Y), the production plan creation unit 130 ends this optimal work completion date calculation process.
  • step 1926: N the production plan creation unit 130 performs the process at step 1921.
  • the value of the optimal work completion date 1207 is not registered for all the processes of the above-mentioned “production plan 2”, and the process returns to step 1921.
  • step 1921 to be executed again the production plan creation unit 130, except for the process “shop 1” at the part level “0” that has already completed the process related to the optimal work completion date among the processes of “production plan 2”. Among the processes, the process of the component level “1” with the minimum component level is selected.
  • the production plan creation unit 130 in subsequent step 1922 determines that the level is “1” or higher in the corresponding process (step 1922: Y), and the process proceeds to step 1924.
  • step 1924 the production plan creation unit 130 calculates the optimal work completion date. Details regarding this calculation method will be described with reference to the flowchart shown in FIG.
  • the production plan creation unit 130 determines in step 2210 whether the corresponding process has a production capacity, that is, whether the production capacity is defined by the process capacity information 114 (FIG. 5). If the result of this determination is that the relevant process has production capacity (step 2210: Y), the production plan creation unit 130 advances the processing to step 2220. On the other hand, if the production process does not have a production capacity (step 2210: N), the production plan creation unit 130 advances the process to step 2250.
  • the production capability “6” is defined in the process capability information 114 for the process “shop 2” of the part level “1” of the “production plan 2” that is the corresponding process, and the process is step 2220. It will go to.
  • step 2220 the production plan creation unit 130 calculates the total load amount.
  • the method for calculating the total load amount is the same as step 1824 in FIG. Therefore, the total load amount here is “5”.
  • the production plan creation unit 130 calculates the latest allocation date of the load pile.
  • This latest allocation date is the date that can be allocated the latest from the “early allocation date” to the “early allocation date of the upper item (one smaller part level item) ⁇ supply LT ⁇ production LT + 1 day”.
  • the upper item is an item whose component level is one smaller than the item of the process to be processed in the MRP development information 132.
  • the earliest allocation date of the upper item is always obtained. Note that the one day added after the manufacturing LT is the same as the one day subtracted from the earliest allocation date when calculating the earliest work completion date. This is for the production end date.
  • the process corresponding to the item that is one level higher than the part level “1”, that is, the item level “0” is “shop 1” in which “product A” is defined in the MRP development information 132.
  • the production plan creation unit 130 registers the latest assignable date as the value of the optimum assignment date 1306 in the load assignment result information 133.
  • the production plan creation unit 130 calculates the optimal work completion date as the latest allocation date + production LT-1.
  • the reason for subtracting one day is the same as the reason for subtracting one day from the formula for calculating the earliest work completion date from the earliest allocation date.
  • the production plan creation unit 130 registers the calculation result of the optimum work completion date in the item of the optimum work completion date 1207 of the corresponding record in the MRP development information 132.
  • step 2250 the production plan creation unit 130 determines that the part request date (the corresponding item in the corresponding process is higher).
  • the date required for manufacturing the item) is calculated as the optimal assignment date, and this is set as the optimal work completion date, which is set in the item of the optimal work completion date 1207 of the corresponding record in the MRP expansion information 132.
  • the processing of this step 2250 is the execution of step 1921 in the flow of FIG. 21 after the above-mentioned calculation process of the optimal work completion date for “shop 2” of “production plan 2”.
  • the process is executed in accordance with step 1924.
  • “part C” in “production plan 2” has “semi-finished product B” as the upper item.
  • the process “parts warehouse” of “part C”, which is a target for calculating the optimum completion date has no production capacity.
  • the optimum completion date of the process “shop 2” of “semi-finished product B” is calculated as “4/8” as described above.
  • the supply LT related to the process between “part warehouse” and “shop 2” is “1” day in the inter-process information 113, and the above-described part request date is “4/1” one day before “4/8”. 7 ”, that is, the optimum completion date for the process“ parts warehouse ”is“ 4/7 ”.
  • the adjustment result related to the optimal work completion date for “production plan 2” remains as shown in FIG.
  • step 1926 the production plan creation unit 130 determines whether the optimal work completion date has been processed for all the processes of the production plan in the MRP development information 132.
  • the production plan creation unit 130 since there is no unprocessed process for “production plan 2” (ie, 1926: Y), the production plan creation unit 130 has completed the flow of FIG. 22, ie, step 1924 in FIG. This process ends.
  • step 1930 of the flow in FIG. 20 the production plan creation unit 130 determines whether all the production plans have been readjusted, that is, whether the optimal work completion date has been calculated. As a result of this determination, when a plan that has not been readjusted remains (step 1930: N), the production plan creation unit 130 returns the process to step 1910. On the other hand, as a result of the determination, when all the production plans have been readjusted (step 1930: Y), the production plan creation unit 130 ends this flow. In the case of the present embodiment described above, since “production plan 1” and “production plan 3” have not been readjusted, the processing returns to step 1910.
  • the production plan creation unit 130 selects “Production Plan 3” having a lower priority in Step 1910.
  • the production plan creation unit 130 selects the smallest “Product A” with the part level “0” in Step 1920 and executes the flow of FIG.
  • the production plan creation unit 130 selects “Shop 1” as the process of “Product A” described above at Step 1921, and at Step 1922, the part level selected at Step 1921 described above is “ It is determined that it is not 1 or more, that is, the component level is “0” (step 1922: N), and in step 1923, the required work completion date “4/7” and the earliest work completion date “ 4/4 "is compared.
  • step 1924 the production plan creation unit 130 calculates the optimal work completion date as illustrated in FIG.
  • the production plan creation unit 130 determines in step 2210 whether the corresponding process “shop 1” has the production capacity based on the process capability information 114 and determines that the production capability is provided (step 2210: Y) The process proceeds to step 2220.
  • step 2220 the production plan creation unit 130 calculates the total load amount. The method for calculating the total load amount is the same as step 1824 in FIG. Therefore, the total load amount here is “10”.
  • the production plan creation unit 130 calculates the latest allocation date of the load pile.
  • the date that is the same as or closest to the requested work completion date “4/7” is identified as the optimum work completion date, and this optimum work completion date is set as the optimum work completion date 1207 of the corresponding record in the MRP development information 132. Register in the item.
  • the requested work completion date “4/7” is adopted as the optimum work completion date of “product A” at the part level “0” in “production plan 3”.
  • the production plan creation unit 130 selects a process “shop 2” corresponding to the item “semi-finished product B” of the next part level “1” in step 1921, and continues to step 1922.
  • the part level is “1” or more (step 1922: Y)
  • the optimal work completion date is calculated as illustrated in FIG.
  • the production plan creation unit 130 determines in step 2210 that the process “shop 2” has a production capacity (step 2210: Y), and advances the process to step 2220.
  • the production plan creation unit 130 calculates the total load amount.
  • the method for calculating the total load amount is the same as step 1824 in FIG. Therefore, the total load amount here is “5”.
  • the production plan creation unit 130 calculates the latest allocation date of the load pile.
  • the process corresponding to the item that is one level higher than the part level “1”, that is, the item level “0” is “shop 1” in which “product A” is defined in the MRP development information 132.
  • the optimum allocation date of “Product A” in “Shop 1” is “4/7” in the load allocation result information 133 shown in FIG.
  • the optimal work completion date is adopted instead of the earliest work completion date in the formula for calculating the latest allocation date in this step 2230. To do.
  • the supply LT is “3” days, which is obtained by adding 2 days to the “1” between the normal “shop 1” and “shop 2”.
  • the production plan creation unit 130 registers the calculation result of the optimum work completion date in the item of the optimum work completion date 1207 of the corresponding record in the MRP development information 132.
  • FIG. 31 shows a situation where “4/4” is adopted as the optimum completion date of “half-finished product B” at the part level “1”.
  • the production plan creation unit 130 selects a process corresponding to the item “part C” of the next part level “2”, “part warehouse” in step 1921, and continues to step 1922.
  • the component level is “1” or higher (step 1922: Y)
  • the optimal work completion date is calculated as illustrated in FIG.
  • the production plan creation unit 130 determines in step 2210 that the process “parts warehouse” has no production capacity (step 2210: N), and advances the process to step 2250.
  • the production plan creation unit 130 calculates the part request date (the date “item C” in the “parts warehouse” process is required for the production of the upper item “semi-finished product B”) as the optimum allocation date. This is set as the optimum work completion date, and is set in the item of the optimum work completion date 1207 of the corresponding record in the MRP development information 132.
  • the optimum completion date of the process “shop 2” of “semi-finished product B” in “production plan 3” is calculated as “4/4”.
  • FIG. 32 shows a situation in which “4/3” is adopted as the optimal work completion date of “part C” at the part level “2”.
  • production plan 1 when “production plan 1” is adopted in step 1910 and each process of FIG. 21 and FIG. 22 is executed in the same manner as the above-mentioned “production plan 2” and “production plan 3”, as shown in FIG.
  • the optimal work completion date of “Product A” can be calculated as “4/4”
  • the optimal work completion date of “Semi-Product B” can be calculated as “4/3”
  • the optimal work completion date of “Part C” can be calculated as “4/2”.
  • the production plan creation unit 130 registers the calculation result of the optimum completion date regarding each production plan in the corresponding record in the MRP development information 132.
  • the entire production plan is readjusted (step 1930: Y) in step 1930 in the flow of FIG. 20, and the production plan creation unit 130 performs the processing in step 1900 (FIG. 16). Exit.
  • the output data creation unit 140 outputs the adjustment result information to an appropriate output device or the like in step 2000.
  • the output content here is the adjusted order information 142.
  • the output data creation unit 140 may create and output the adjustment result difference information 141 from the MRP development information 132 in accordance with a user instruction or the like.
  • the logic for creating the adjustment result difference information 141 from the MRP development information 132 is based on the optimum work completion date and the earliest work completion date or the requested work completion in the corresponding production plan, which is a difference extraction target by, for example, user designation from the MRP development information 132 It is possible to adopt a method in which each value of each item of the day is extracted, a date difference is calculated between the items, and this is used as the adjustment result difference information 141. With the above, the entire flow of production plan adjustment was completed, and an optimal production plan was obtained.
  • FIG. 29 shows the allocation relationship between the production plan and the order at the end of step 1800 in the flow of FIG.
  • FIG. 34 shows the allocation relationship between production plans and orders at the end of all steps in the flow of FIG.
  • the inventory period is 3 days, which is shortened by 1 day compared with before the re-adjustment. Further, from the result of “Production plan 3” for “Order3”, the inventory period is 0 days, that is, 3 days shorter than before the readjustment. What is important is that the requested delivery date of the order is kept even in the production plan after re-adjustment, and it is possible to deliver the product as requested by the customer. In addition, when re-adjustment across periods is possible, leading to a reduction in inventory at the end of the period, it is possible to secure the corresponding cash flow, and it is possible to produce an effect that is not limited to observing deadlines.
  • the greatest feature of this embodiment is that the readjustment is performed from a production plan with a low priority, as shown in step 1910 in the flow of FIG.
  • the reason why the earliest work completion date is requested for the production plan is to level the production, to effectively use the resources, and to meet the requested delivery date from the customer as much as possible.
  • Excessive capacity led to more production plans than necessary, leading to increased inventory. Therefore, in this embodiment, it is possible to shorten the period of inventory while satisfying the requested delivery date from the customer.
  • low-priority production plans such as plans that have not been finalized at the time the plan is entered, are likely to be canceled, etc., and implement the production plan as close as possible to the required work completion date.
  • the possibility of waste is reduced.
  • the form of the BOM does not depend on the example of this embodiment at all.
  • the hierarchy and the number of child items for the parent item can be changed for various cases.
  • it can be used not only for the assembly manufacturing industry but also for the process manufacturing industry.
  • it is important to efficiently incorporate the time (setup time) required for equipment conversion into the production plan.
  • it is important to formulate a production plan that equalizes the production load. If a production plan that can further reduce inventory assets can be formulated and adjusted, it can greatly contribute to corporate activities. It is.
  • this embodiment it is possible to create and adjust not only the production schedule that meets the required delivery date from the market / customer, that is, the earliest schedule, but also the production plan that can reduce inventory, and wasteful inventory. It is possible to reduce the management cost and increase the cash flow. In other words, it is possible to make and adjust a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market.
  • the storage device stores a plurality of order information in the transaction information in association with the priority of the corresponding order
  • the arithmetic device is the production device.
  • the allocation process and the allocation process are performed again on the condition that the delivery date of the product is earlier than the required delivery date, on the condition that the delivery date for the product approaches the required delivery date.
  • the process to be executed may be executed in the order of the priority of the corresponding order, and the adjustment process of the production plan may be executed.
  • the earliest production plan is generated for orders that must be in time for the required delivery date, that is, those with the highest priority, while the accuracy of the order itself is low.
  • orders that do not need to be in time for the required delivery date that is, those with a priority lower than the specified level
  • the arithmetic unit may further execute a process of outputting the production plan subjected to the adjustment process to a predetermined apparatus.
  • the arithmetic unit may further execute a process of outputting difference information between production plans before and after the execution of the adjustment process to a predetermined apparatus.
  • the information processing apparatus stores a plurality of order information in association with the priority of the corresponding order in the transaction information of the storage device, and generates the production plan.
  • a production plan corresponding to the earliest work completion schedule that can be delivered earliest is generated in descending order of priority of the corresponding order.
  • Processing for re-executing the allocation process and the allocation process on the condition that the delivery date for the product is close to the required delivery date for each production plan according to the order information whose delivery date is earlier than the required delivery date May be executed in descending order of priority of the corresponding order, and the adjustment process of the production plan may be executed.
  • the information processing apparatus may further execute a process of outputting the production plan subjected to the adjustment process to a predetermined apparatus.
  • the information processing apparatus may further execute a process of outputting difference information between production plans before and after the execution of the adjustment process to a predetermined apparatus.
  • Production Plan Adjustment Support Device 10 Auxiliary Storage Device (Storage Device) 20 arithmetic unit 30 main storage device (storage device) 100 Program 110 Master information storage part 111 Parts table information 112 Item information 113 Inter-process information 114 Process capability information 115 Item load information 116 Calendar information 117 Parts table 120 Transaction information storage part 121 Order information 122 Order remaining information 123 Inventory information 130 Production Plan Creation Unit 131 Production Plan Information 132 MRP Deployment Information 133 Load Allocation Result Information 140 Adjustment Result Difference Information 141 Adjusted Order Information

Abstract

A production plan adjustment assisting device (1) has a configuration provided with: a storage device (10) which stores master information including a component list and information relating to production capacities using a manufacturing facility, and transaction information including order information for a product, and information relating to the inventory status and the procurement status of the components of said product; and an arithmetic logic device (20) which, taking the requested quantities and requested due dates indicated in the order information as constraining conditions, generates a production plan by carrying out a process to reserve the components which form the ordered products, and a process to allocate production capacity, on the basis of the information in the component list, the information relating to the production capacity, and the information relating to the inventory status and the procurement status of the components. If the delivery date indicated by the production plan is earlier than the requested due date, the arithmetic logic device (20) carries out a process to adjust the production plan, by re-executing the reservation process and the allocation process using conditions whereby the delivery date relating to the product is close to the requested due date.

Description

生産計画調整支援装置および生産計画調整支援方法Production plan adjustment support apparatus and production plan adjustment support method
　本発明は、生産計画調整支援装置および生産計画調整支援方法に関する。 The present invention relates to a production plan adjustment support device and a production plan adjustment support method.
　製品を生産する工場では、市場や顧客の要求納期に応えるために、該当製品を要求納期までに生産する生産計画を立案する。その際、工場の生産計画担当者が利用する生産計画調整システムでは、部品表、品目マスタ、工程間の輸送に関する情報、および、製造時に製造主体にかかる負荷の情報、といった該当工場に関するマスタ情報と、市場や顧客等からのオーダ情報と、部品サプライヤ等に発注済の発注残情報等のトランザクション情報、などに基づき、該当製品の生産に必要な部品や生産能力の引当処理を行い、製品の生産計画を立案、調整する。 In factories that produce products, in order to meet the required delivery date of the market and customers, a production plan for producing the product by the required delivery date is drawn up. At that time, in the production plan adjustment system used by the person in charge of production planning at the factory, the master information about the relevant factory such as the bill of materials, item master, information on transportation between processes, and information on the load on the manufacturing entity during manufacturing, Based on order information from the market, customers, etc., and transaction information such as back-order information already ordered from parts suppliers, etc., the production process of the parts and production capacity necessary for the production of the corresponding products is performed. Develop and adjust plans.
　こうした生産計画に関する業務において、従来では、市場のグローバル化等に由来して増加する需要に対し、生産能力が不足するという問題が存在した。生産能力が不足すると、市場や顧客からの要求納期に対して製品の生産が間に合わない事態が発生する。その場合、生産計画担当者は、工場での残業時間増加を踏まえた生産能力見直しや、あるいは注文主に対する納期延長の交渉などの対策を講じる必要が出てくる。 In such operations related to production planning, there has conventionally been a problem that production capacity is insufficient with respect to increasing demand resulting from globalization of the market. If the production capacity is insufficient, there will be a situation where production of products is not in time for the required delivery date from the market and customers. In that case, the person in charge of production planning needs to take measures such as reviewing the production capacity based on the increase in overtime hours in the factory, or negotiating extension of the delivery date to the orderer.
　そこで、このような生産計画調整に関する従来技術として、例えば、以下の技術が提案されている。すなわち、所定製品に関する生産計画および調整後生産計画の各情報を記憶装置より読み出し、同一工程における作業完了時期の乖離を、生産計画と調整後生産計画との間について算定し、当該算定結果を所定の端末ないし表示装置に出力し、乖離を解消するためのリソースの調整指示を所定の端末ないし入力装置から受け付け、当該調整指示に応じて調整したリソースの情報での生産計画を生成する処理を実行する生産計画調整支援装置（特許文献１参照）などが提案されている。 Therefore, for example, the following techniques have been proposed as conventional techniques related to such production plan adjustment. That is, each piece of information on the production plan and adjusted production plan for a given product is read from the storage device, the difference in work completion timing in the same process is calculated between the production plan and the adjusted production plan, and the calculation result is given Output to the terminal or display device, and receive a resource adjustment instruction for eliminating the divergence from a predetermined terminal or input device, and execute a process of generating a production plan with the resource information adjusted according to the adjustment instruction A production plan adjustment support device (see Patent Document 1) is proposed.
特開２０１４－０１６８０５号公報JP 2014-016805 A
　上述したように、従来は増大する需要に対して生産能力が不足することが問題となっていたため、現状の生産リソースで製品の生産および納入が可能な最も早い日程、すなわち最早日程に応じた生産計画を迅速かつ正確に立案、調整できることが重要であった。 As mentioned above, there has been a problem of insufficient production capacity for increasing demand, so the earliest schedule for producing and delivering products with the current production resources, that is, production according to the earliest schedule. It was important to be able to plan and adjust the plan quickly and accurately.
　一方、近年では、市場の競争激化やサプライチェーンのグローバル化などにより、需要の変動が激しくなり、需要が生産能力を下回る事態も発生するようになってきた。このように需要が生産能力を下回る状況において、従来技術のごとく最早日程に応じた生産計画を立案し、これを実行すると、顧客の要求納期よりも大幅に前倒しされた時期に該当製品の生産が完了することとなる。このような事態は、生産された該当製品が、製品出荷日（基本的には要求納期が示す指定日）まで製品在庫として存在することにつながる。 On the other hand, in recent years, due to intensifying market competition and globalization of the supply chain, fluctuations in demand have become severe, and situations have arisen where demand falls below production capacity. In such a situation where the demand falls below the production capacity, the production plan according to the earliest schedule as in the conventional technology is drawn up and executed, so that the production of the corresponding product is carried out at a time far ahead of the customer's requested delivery date. It will be completed. Such a situation leads to the product produced being present as product inventory until the product shipment date (basically, the designated date indicated by the requested delivery date).
　つまり、製品生産に伴って棚卸資産が増加し、その管理コストも増大するなど、無駄なコストが発生する上に、製品生産用の各種リソースの投入から製品納入後の代金回収までの期間が長期化するためキャッシュフローは減少し、会社経営の根幹に関わる問題となる恐れもある。 In other words, inventories increase with the production of products, and management costs also increase.In addition, there is a wasteful cost, and the period from the input of various resources for product production to the collection of payment after product delivery is long. As a result, cash flow will decrease, which may become a problem related to the foundation of company management.
　そこで本発明の目的は、顧客や市場からの要求納期に可能な限り対応しつつ、該当製品の棚卸資産を効率的に削減する生産計画の立案、調整を可能とする技術を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a technique that enables planning and adjustment of a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market. .
　上記課題を解決する本発明の生産計画調整支援装置は、所定製品の部品表と製造施設での生産能力の情報とを少なくとも含むマスタ情報と、前記製品に対する注文情報と前記製品を構成する部品の在庫状況および調達状況に関する情報とを少なくとも含むトランザクション情報と、を格納する記憶装置と、前記注文情報が示す要求数量および要求納期を制約条件として、前記部品表および生産能力の各情報と前記部品の在庫状況および調達状況の各情報とに基づいて、注文製品を成す部品の引当処理および生産能力の割当処理を少なくとも行って生産計画を生成し、当該生産計画が示す納品日が前記要求納期より早い場合、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行し、前記生産計画の調整処理を実行する演算装置と、を備えることを特徴とする。 The production plan adjustment support device of the present invention that solves the above-described problems is a master information including at least a parts table of a predetermined product and information on a production capacity at a manufacturing facility, order information for the product, and parts constituting the product. Transaction information including at least inventory status and procurement status information, a storage device for storing, the required quantity and required delivery date indicated by the order information as constraints, the parts table and production capacity information, and the parts Based on the stock status and procurement status information, at least the process of allocating the parts that make up the ordered product and the allocation process of the production capacity are performed to generate a production plan, and the delivery date indicated by the production plan is earlier than the required delivery date. In this case, the allocation process and the allocation process are executed again under the condition that the delivery date related to the product approaches the required delivery date. An arithmetic unit for executing adjustment processing of the production plan, characterized in that it comprises a.
　また、本発明の生産計画調整支援方法は、所定製品の部品表と製造施設での生産能力の情報とを少なくとも含むマスタ情報と、前記製品に対する注文情報と前記製品を構成する部品の在庫状況および調達状況に関する情報とを少なくとも含むトランザクション情報と、を格納する記憶装置を備えた情報処理装置が、前記注文情報が示す要求数量および要求納期を制約条件として、前記部品表および生産能力の各情報と前記部品の在庫状況および調達状況の各情報とに基づいて、注文製品を成す部品の引当処理および生産能力の割当処理を少なくとも行って生産計画を生成し、前記生産計画が示す納品日が前記要求納期より早い場合、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行し、前記生産計画の調整処理を実行する、　ことを特徴とする。 Further, the production plan adjustment support method of the present invention includes master information including at least a bill of materials of a predetermined product and information on production capacity at a manufacturing facility, order information for the product, inventory status of parts constituting the product, and An information processing apparatus including a storage device for storing transaction information including at least information on procurement status, and the information on the parts table and the production capacity, with the required quantity and the required delivery date indicated by the order information as constraints Based on the inventory status and procurement status information of the parts, a production plan is generated by performing at least the allocation process of the parts constituting the ordered product and the allocation process of the production capacity, and the delivery date indicated by the production plan is the request If it is earlier than the delivery date, the allocation process and the allocation process are executed again under the condition that the delivery date for the product approaches the requested delivery date. Then, it executes the adjustment process of the production plan, and wherein the.
　本発明によれば、顧客や市場からの要求納期に可能な限り対応しつつ、該当製品の棚卸資産を効率的に削減する生産計画の立案、調整が可能となる。 According to the present invention, it is possible to make and adjust a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market.
本実施形態に係る生産計画調整支援装置の構成例を示す図である。It is a figure which shows the structural example of the production plan adjustment assistance apparatus which concerns on this embodiment. 本実施形態に係る部品表の定義例を示す図である。It is a figure which shows the example of a definition of the components table which concerns on this embodiment. 本実施形態に係る品目情報の定義例を示す図である。It is a figure which shows the example of a definition of the item information which concerns on this embodiment. 本実施形態に係る工程間情報の定義例を示す図である。It is a figure which shows the example of a definition of the process information which concerns on this embodiment. 本実施形態に係る工程能力情報の定義例を示す図である。It is a figure which shows the example of a definition of the process capability information which concerns on this embodiment. 本実施形態に係る品目負荷情報の定義例を示す図である。It is a figure which shows the example of a definition of the item load information which concerns on this embodiment. 本実施形態に係るカレンダ情報の定義例を示す図である。It is a figure which shows the example of a definition of the calendar information which concerns on this embodiment. 本実施形態に係るオーダ情報の定義例を示す図である。It is a figure which shows the example of a definition of order information which concerns on this embodiment. 本実施形態に係る発注残情報の定義例を示す図である。It is a figure which shows the example of a definition of the order backlog information which concerns on this embodiment. 本実施形態に係る在庫情報の定義例を示す図である。It is a figure which shows the example of a definition of the inventory information which concerns on this embodiment. 本実施形態に係る生産計画情報のデータ例を示す図である。It is a figure which shows the example of data of the production plan information which concerns on this embodiment. 本実施形態に係るＭＲＰ展開情報のデータ例を示す図である。It is a figure which shows the example of data of the MRP expansion | deployment information which concerns on this embodiment. 本実施形態に係る負荷割付結果情報のデータ例を示す図である。It is a figure which shows the example of data of the load allocation result information which concerns on this embodiment. 本実施形態に係る調整結果差分情報のデータ例を示す図である。It is a figure which shows the example of data of the adjustment result difference information which concerns on this embodiment. 本実施形態に係る調整後オーダ情報のデータ例を示す図である。It is a figure which shows the data example of the adjusted order information which concerns on this embodiment. 本実施形態に係る生産計画調整支援方法のフロー例１を示す図である。It is a figure which shows the example 1 of a flow of the production plan adjustment assistance method which concerns on this embodiment. 本実施形態に係る生産計画調整支援方法のフロー例２を示す図である。It is a figure which shows the example 2 of a flow of the production plan adjustment assistance method which concerns on this embodiment. 本実施形態に係る生産計画調整支援方法のフロー例３を示す図である。It is a figure which shows the example 3 of a flow of the production plan adjustment assistance method which concerns on this embodiment. 本実施形態に係る生産計画調整支援方法のフロー例４を示す図である。It is a figure which shows the example 4 of a flow of the production plan adjustment assistance method which concerns on this embodiment. 本実施形態に係る生産計画調整支援方法のフロー例５を示す図である。It is a figure which shows the example 5 of a flow of the production plan adjustment assistance method which concerns on this embodiment. 本実施形態に係る生産計画調整支援方法のフロー例６を示す図である。It is a figure which shows the example 6 of a flow of the production plan adjustment assistance method which concerns on this embodiment. 本実施形態に係る生産計画調整支援方法のフロー例７を示す図である。It is a figure which shows the example 7 of a flow of the production plan adjustment assistance method which concerns on this embodiment. 本実施形態における生産計画調整の過程１を示す図である。It is a figure which shows the process 1 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程２を示す図である。It is a figure which shows the process 2 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程３を示す図である。It is a figure which shows the process 3 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程４を示す図である。It is a figure which shows the process 4 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程５を示す図である。It is a figure which shows the process 5 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程６を示す図である。It is a figure which shows the process 6 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程７を示す図である。It is a figure which shows the process 7 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程８を示す図である。It is a figure which shows the process 8 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程９を示す図である。It is a figure which shows the process 9 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程１０を示す図である。It is a figure which shows the process 10 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程１１を示す図である。It is a figure which shows the process 11 of the production plan adjustment in this embodiment. 本実施形態における生産計画調整の過程１２を示す図である。It is a figure which shows the process 12 of the production plan adjustment in this embodiment.
－－－装置構成の例－－－ --- Example of device configuration ---
　以下に本発明の実施形態について図面を用いて詳細に説明する。図１は本実施形態の生産計画調整支援装置の構成例を示す図である。図１に示す生産計画調整支援装置１は、顧客や市場からの要求納期に可能な限り対応しつつ、該当製品の棚卸資産を効率的に削減する生産計画の立案、調整を可能とするためのコンピュータ装置である。本実施形態の生産計画調整支援装置１は、例えば図１にて例示するハードウェア構成を備えている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a production plan adjustment support apparatus according to the present embodiment. The production plan adjustment support apparatus 1 shown in FIG. 1 is capable of planning and adjusting a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market. A computer device. The production plan adjustment support apparatus 1 according to the present embodiment includes a hardware configuration illustrated in FIG. 1, for example.
　すなわち本実施形態の生産計画調整支援装置１は、ＳＳＤ（Ｓｏｌｉｄ Ｓｔａｔｅ Ｄｒｉｖｅ）やハードディスクドライブなど適宜な不揮発性記憶装置で構成される補助記憶装置１０、ＲＡＭなど揮発性記憶装置で構成される主記憶装置３０、補助記憶装置１０に保持されるプログラム１００を主記憶装置３０に読み出すなどして実行し装置自体の統括制御を行なうとともに各種判定、演算及び制御処理を行なうＣＰＵなどの演算装置２０を備える。なお、生産計画調整支援装置１をクライアント端末（不図示）と接続しで利用するためのネットワーク装置（不図示）や、ディスプレイなどの表示装置（不図示）、キーボードやマウスなどの入力装置（不図示）を備えるとしても良い。 That is, the production plan adjustment support device 1 of the present embodiment includes an auxiliary storage device 10 configured by an appropriate nonvolatile storage device such as an SSD (SolidｏｌState Drive) or a hard disk drive, and a main memory configured by a volatile storage device such as a RAM. The device 30 and the auxiliary storage device 10 are provided with an arithmetic device 20 such as a CPU for performing overall control of the device itself by executing the program 100 by reading it into the main storage device 30 and performing various determinations, calculations and control processes. . Note that a network device (not shown) for using the production plan adjustment support device 1 connected to a client terminal (not shown), a display device (not shown) such as a display, and an input device (not shown) such as a keyboard and a mouse. (Shown) may be provided.
　また、補助記憶装置１０内には、本実施形態の生産計画調整支援装置１として必要な機能を実装する為の上述のプログラム１００と、各種処理に必要なデータ類を記憶するマスタ情報記憶部１１０およびトランザクション情報記憶部１２０が少なくとも格納されている。 Further, in the auxiliary storage device 10, the above-described program 100 for implementing functions necessary as the production plan adjustment support device 1 of the present embodiment, and a master information storage unit 110 that stores data necessary for various processes. The transaction information storage unit 120 is stored at least.
　上述の補助記憶装置１０におけるマスタ情報記億部１１０には、部品表情報１１１、品目情報１１２、工程間情報１１３、工程能力情報１１４、品目負荷情報１１５、およびカレンダ情報１１６が格納されている。また、トランザクション情報記憶部１２０には、オーダ情報１２１、発注残情報１２２、および在庫情報１２３が格納されている。 The master information storage unit 110 in the above-described auxiliary storage device 10 stores parts table information 111, item information 112, inter-process information 113, process capability information 114, item load information 115, and calendar information 116. The transaction information storage unit 120 stores order information 121, order remaining information 122, and inventory information 123.
　このうち部品表情報１１１は、図２にて示す通り、例えば完成品など親部品２０１、この親部品を構成する子部品２０２、親部品及び子部品それぞれの員数２０３の各項目を有した製品ごとの部品表１１７を格納したものである。品目の親子関係および親品目を構成する子品目の必要数を情報として持つものとなる。 Among these, as shown in FIG. 2, the parts table information 111 includes, for example, a parent part 201 such as a finished product, a child part 202 constituting the parent part, and each product having each item of the number 203 of the parent part and the child part. The parts table 117 is stored. The information includes the parent-child relationship of items and the necessary number of child items that make up the parent item.
　また、品目情報１１２は、図３にて示す通り、品目３０１、工程３０２、および製造ＬＴ（リードタイム）３０３の各項目を有したテーブルであり、品目が定義されている工程、工程のうち製造品目に関するものについて製造ＬＴ、の各値を情報として持つものとなる。なお、製造ＬＴが定義されていない品目は購入品であり、サプライヤから調達する品目である。 Further, as shown in FIG. 3, the item information 112 is a table having items of an item 301, a process 302, and a manufacturing LT (lead time) 303, and is manufactured among the processes and processes in which the item is defined. Each item related to the item has information of manufacturing LT as information. Note that items for which the manufacturing LT is not defined are purchased items and items procured from the supplier.
　また、工程間情報１１３は、図４にて示す通り、品目４０１、供給元工程４０２、使用先工程４０３、および供給ＬＴ４０４の各項目を有したテーブルであり、各品目についての工程間の供給関係（供給元工程→使用先工程）、およびその供給時のＬＴを情報として持つものとなる。 Further, the inter-process information 113 is a table having items 401, a supply source process 402, a use destination process 403, and a supply LT 404, as shown in FIG. (Supply source process → use destination process) and LT at the time of supply are included as information.
　また、工程能力情報１１４は、図５にて示す通り、工程５０１および生産能力５０２の各項目を有したテーブルであり、工程が持つ生産能力の上限値を情報として持つものとなる。 Further, as shown in FIG. 5, the process capability information 114 is a table having items of the process 501 and the production capability 502, and has an upper limit value of the production capability of the process as information.
　また、品目負荷情報１１５は、図６にて示す通り、品目６０１、工程６０２、および単位負荷量６０３の各項目を有したテーブルであり、各品目を生産する際の該当工程での単位負荷量を情報として持つものとなる。「単位負荷量×生産数量」が該当品目の製造に要する総負荷量となる。 Further, as shown in FIG. 6, the item load information 115 is a table having items of an item 601, a process 602, and a unit load amount 603, and the unit load amount in the corresponding process when producing each item. As information. “Unit load amount × production quantity” is the total load amount required for manufacturing the corresponding item.
　また、カレンダ情報１１６は、図７にて示す通り、工程７０１および休日７０２の各項目を有したテーブルであり、工程ごとの休日（非稼働日）を情報として持つものとなる。このカレンダ情報１１６の休日７０２の項目に設定された該当日は、該当工程において空き能力無しとなる。 Further, as shown in FIG. 7, the calendar information 116 is a table having items of a process 701 and a holiday 702, and has a holiday (non-working day) for each process as information. The corresponding day set in the item of the holiday 702 of the calendar information 116 has no free capacity in the corresponding process.
　また、オーダ情報１２１は、図８にて示す通り、オーダ番号８０１、品目８０２、要求数量８０３、要求納期８０４、および優先度８０５の各項目を有するテーブルであり、顧客からの注文を一意に特定するオーダ番号８０１を識別子とし、対応する注文の情報を持つものとなる。 Further, as shown in FIG. 8, the order information 121 is a table having items of an order number 801, an item 802, a requested quantity 803, a requested delivery date 804, and a priority 805, and uniquely identifies an order from a customer. The order number 801 to be used is an identifier, and the corresponding order information is held.
　このオーダ情報１２１において、上述の優先度８０５は、オーダ（注文情報）ごとに生産計画の生成と調整に関する各処理を実行する際に、どのオーダから処理するかを決めるための指標である（優先度が高い順、低い順）。例えば、重要な顧客からのオーダや、主力製品に関するオーダなどの優先度はより高く、オーダーキャンセル等が頻発する顧客からのオーダなどの優先度はより低く、所定の管理者等により予め設定されている。優先度が高いオーダに対しては、優先的に部品や生産能力を割り当てて、生産計画の生成、調整が行われる。なお、本実施形態では、この優先度の設定手法について限定しない。優先度は、上述のように所定の管理者等が設定する場合の他、要求納期などの所定値を入力とした所定アルゴリズムで生産計画調整支援装置１が算定、設定するとしてもよい。また本実施形態では、優先度の値は１以上とし、数が小さいほど優先度が高いと定義する。また本実施形態においては、オーダは全て最終製品の品目のみとしているが、半製品（中間品）に関するものを想定してもよい。 In the order information 121, the above-described priority 805 is an index for deciding which order to process when executing each process related to generation and adjustment of a production plan for each order (order information) (priority). In descending order). For example, priorities such as orders from important customers and orders related to main products are higher, orders such as orders from customers with frequent order cancellations are lower, and are set in advance by a predetermined administrator. Yes. For orders with high priority, parts and production capacity are preferentially assigned, and production plans are generated and adjusted. In the present embodiment, the priority setting method is not limited. The priority may be calculated and set by the production plan adjustment support apparatus 1 using a predetermined algorithm with a predetermined value such as a requested delivery date as an input, in addition to the case where the predetermined administrator sets the priority as described above. In this embodiment, the priority value is 1 or more, and the smaller the number, the higher the priority. Further, in this embodiment, the orders are all the items of the final product, but those related to the semi-finished product (intermediate product) may be assumed.
　また、発注残情報１２２は、図９にて示す通り、発注先９０１、品目９０２、発注数量９０３、および入庫予定日９０４の各項目を有したテーブルであり、製品を構成する各品目について、サプライヤへの発注済み数量のうち未受領分すなわち発注残の情報と、その未受領分が入庫する予定日の情報を持つものとなる。 Further, as shown in FIG. 9, the remaining order information 122 is a table having items of an ordering party 901, an item 902, an ordering quantity 903, and a scheduled receipt date 904. Of the ordered quantity, the information on the unreceived part, that is, the information on the remaining order, and the information on the scheduled date of receipt of the unreceived part.
　また、在庫情報１２３は、図１０にて示す通り、品目１００１、工程１００２、および在庫数量１００３の各項目を有するテーブルであり、各品目の在庫情報を持つものとなる。 Further, as shown in FIG. 10, the inventory information 123 is a table having items of an item 1001, a process 1002, and an inventory quantity 1003, and has inventory information of each item.
－－－生産計画調整支援装置の機能－－－ --- Function of production plan adjustment support device ---
　続いて、本実施形態の生産計画調整支援装置１が備える機能について説明する。上述したように、以下に説明する機能は、例えば　生産計画調整支援装置１が備えるプログラムをそれぞれ実行することで実装される機能と言える。 Subsequently, functions provided in the production plan adjustment support device 1 of the present embodiment will be described. As described above, the functions described below can be said to be functions that are implemented by, for example, executing programs provided in the production plan adjustment support apparatus 1.
　本実施形態における生産計画調整支援装置１が備える機能は、生産計画作成部１３０および出力データ作成部１４０である。以降、生産計画作成部１３０および出力データ作成部１４０と記した場合は、生産計画調整支援装置１の演算装置２０が補助記憶装置１０から対応するプログラム１００を読み出し、主記憶装置３０にロードして実行することで、各プログラムの機能を実現するものとする。 The functions of the production plan adjustment support apparatus 1 in this embodiment are the production plan creation unit 130 and the output data creation unit 140. Hereinafter, when the production plan creation unit 130 and the output data creation unit 140 are described, the arithmetic device 20 of the production plan adjustment support device 1 reads the corresponding program 100 from the auxiliary storage device 10 and loads it into the main storage device 30. The functions of each program are realized by execution.
　上述の機能のうち生産計画作成部１３０は、マスタ情報記憶部１１０およびトランザクション情報記憶部１２０が有する各情報を取得し、生産計画の生成とその調整を実行する機能である。この生産計画作成部１３０は、処理に伴って、生産計画情報１３１、ＭＲＰ展開情報１３２、および負荷割付結果情報１３３を作成し、保持する。 Among the functions described above, the production plan creation unit 130 is a function for acquiring each piece of information that the master information storage unit 110 and the transaction information storage unit 120 have, and generating a production plan and adjusting it. The production plan creation unit 130 creates and holds production plan information 131, MRP expansion information 132, and load allocation result information 133 along with the processing.
　このうち生産計画情報１３１は、図１１にて示す通り、生成した生産計画を一意に特定する生産計画番号１１０１をキーとして、該当生産計画での生産対象である品目１１０２、その要求数量１１０３、要求工完日１１０４、および優先度１１０５の各項目に対応する値を対応付けたレコードの集合体となっている。こうした生産計画情報１３１の各レコードは、オーダ情報１２１（図８）における各オーダすなわち注文情報ごとに生産計画番号１１０１を付与して生成したものである。なお、生産計画情報１３１における要求工完日１１０４は、元となっているオーダ情報１２１におけるオーダの要求納期８０４が設定される。すなわち、要求工完日１１０４は、顧客からのオーダが示す要求納期８０４を満たすために要求される工完日である。ここで「工完日」とは、該当製品ないし部品の製造あるいは調達を完了出来る日を指している（以下同様）。 Among them, the production plan information 131 includes, as a key, the production plan number 1101 that uniquely identifies the generated production plan, as shown in FIG. 11, the item 1102 that is the production target in the production plan, its required quantity 1103, the request This is a set of records in which values corresponding to the items of the work completion date 1104 and the priority 1105 are associated. Each record of the production plan information 131 is generated by assigning a production plan number 1101 for each order, that is, order information in the order information 121 (FIG. 8). In addition, the requested work completion date 1104 in the production plan information 131 is set with the requested delivery date 804 of the order in the original order information 121. That is, the requested work completion date 1104 is a work completion date required to satisfy the requested delivery date 804 indicated by the order from the customer. Here, “finishing date” refers to the date when the manufacture or procurement of the corresponding product or part can be completed (the same applies hereinafter).
　また、ＭＲＰ展開情報１３２は、図１２にて示す通り、上述の生産計画情報１３１における生産計画番号１１０１と共通する生産計画番号１２０１をキーとして、該当生産計画での生産対象である製品とそれを構成する半製品や部品を示す品目１２０２、その部品レベル１２０３、生産に利用する工程１２０４、必要な数量１２０５、最早工完日１２０６、最適工完日１２０７、および要求工完日１２０８の各項目の値を対応付けたレコードの集合体となっている。こうした値は、生産計画番号１２０１と品目１２０２により一意に特定出来る該当品目について、その製造、調達に要する各工程における日程（最早工完日、最適工完日、要求工完日）、および製造、調達する数量、といったＭＲＰ（Material Requirements Planning）展開に関する情報（以下、ＭＲＰ情報）に対応するものである。従って上述の生産計画作成部１３０は、ＭＲＰに対応する一般的なプログラムを備えて、適宜に呼び出して実行できるものとする。 Further, as shown in FIG. 12, the MRP development information 132 uses the production plan number 1201 common to the production plan number 1101 in the production plan information 131 described above as a key and the product to be produced in the corresponding production plan. Items 1202 indicating the semi-finished products and parts to be configured, the parts level 1203, the process 1204 used for production, the necessary quantity 1205, the earliest work completion date 1206, the optimum work completion date 1207, and the required work completion date 1208 It is a collection of records with associated values. These values are the schedules (early work completion date, optimum work completion date, requested work completion date) and production for each process required for production and procurement of the relevant item that can be uniquely specified by the production plan number 1201 and the item 1202. This corresponds to information (hereinafter referred to as MRP information) regarding MRP (Material （Requirements Planning) development such as the quantity to be procured. Therefore, it is assumed that the above-described production plan creation unit 130 includes a general program corresponding to MRP and can be appropriately called and executed.
　なお、上述の生産計画作成部１３０は、ＭＲＰ展開情報１３２における各品目１２０２の部品レベル１２０３として、生産計画情報１３１（図１１）の各生産計画にて定義されている品目１１０２に対応する品目１２０２については「０」と設定する。また生産計画作成部１３０は、上述の部品レベル「０」の品目の子品目に関する部品レベルは「１」、更にその子品目の部品レベルは「２」・・・と、部品表情報１１１の部品表１１７すなわちＢＯＭ（Ｂｉｌｌ Ｏｆ Ｍａｔｅｒｉａｌ）における品目間の階層に従って部品レベルの値を付与する。 Note that the production plan creation unit 130 described above corresponds to the item 1202 corresponding to the item 1102 defined in each production plan of the production plan information 131 (FIG. 11) as the part level 1203 of each item 1202 in the MRP expansion information 132. Is set to “0”. In addition, the production plan creation unit 130 indicates that the part level related to the child item of the item of the above-described part level “0” is “1”, the part level of the child item is “2”,. 117, that is, a part level value is assigned according to a hierarchy between items in BOM (Bill Of Material).
　また、ＭＲＰ展開情報１３２における要求工完日１２０８は、上述の生産計画情報１３１（図１１）における要求工完日１１０４の値と同一であり、部品レベル「０」のレコードすなわちＭＲＰ情報だけが保持している。 Further, the required work completion date 1208 in the MRP development information 132 is the same as the value of the required work completion date 1104 in the production plan information 131 (FIG. 11) described above, and only the record of the part level “0”, that is, the MRP information is retained. is doing.
　また、ＭＲＰ展開情報１３２における最早工完日１２０６は、該当工程における該当品目の部品の最も早い工完日であり、他方、最適工完日１２０７は、棚卸資産を抑えるために該当生産計画の再調整を実施して得た工完日である。なお、図１２のＭＲＰ展開情報１３２は、本実施形態の生産計画調整支援方法の実行後における状態を示している。少なくとも最適工完日１２０７の項目は、生産計画の調整処理実行前は空欄となっている。 Also, the earliest work completion date 1206 in the MRP development information 132 is the earliest work completion date of the part of the corresponding item in the corresponding process, while the optimum work completion date 1207 is a re-production of the corresponding production plan in order to reduce inventory. It is the work completion date obtained by adjusting. Note that the MRP development information 132 in FIG. 12 indicates a state after execution of the production plan adjustment support method of the present embodiment. At least the item of optimal work completion date 1207 is blank before the adjustment process of the production plan is executed.
　また、上述の負荷割付結果情報１３３は、図１３にて示す通り、上述のＭＲＰ展開情報１３２における生産計画番号１２０１と共通する生産計画番号１３０１をキーとして、品目１３０２、工程１３０３、数量１３０４、最早割付日１３０５、および最適割付日１３０６の各項目の値を対応付けたレコードの集合体となっている。この負荷割付結果情報１３３は、上述のＭＲＰ展開情報１３２の各レコードすなわちＭＲＰ情報のうち、その工程１２０４について、工程能力情報１１４（図５）で生産能力が定義されたものに関して、生産計画作成部１３０が負荷割付を実行して生成したテーブルである。この負荷割付結果情報１３３において、最早割付日１３０５は、該当工程について最も早い負荷割付が可能な日であり、一方、最適割付日１３０６は、上述の生産計画の調整後の負荷割付日である。 Further, as shown in FIG. 13, the load allocation result information 133 described above includes the item 1302, the process 1303, the quantity 1304, and the earliest using the production plan number 1301 common to the production plan number 1201 in the MRP expansion information 132 described above as a key. This is a set of records in which the values of the items of the allocation date 1305 and the optimal allocation date 1306 are associated with each other. This load allocation result information 133 is a production plan creation unit for each record of the MRP expansion information 132 described above, that is, MRP information for which the production capability is defined in the process capability information 114 (FIG. 5). A table 130 is generated by executing load allocation. In this load allocation result information 133, the earliest allocation date 1305 is the date when the earliest load allocation is possible for the corresponding process, while the optimal allocation date 1306 is the load allocation date after the adjustment of the above production plan.
　主記憶装置３０の生産計画作成部１３０では、計算過程において、その時点での各工程における日ごとの空き能力の情報を保持するものとする。なお、本実施形態では、この空き能力の情報をテーブル等で図示せず、図２４～２８、図３０～３３の展開例の中にて示すことでその代わりとする。 In the calculation process, the production plan creation unit 130 of the main storage device 30 holds information on the free capacity for each day in each process at that time. In this embodiment, this vacant capacity information is not shown in a table or the like, but is shown in the development examples of FIGS. 24 to 28 and FIGS. 30 to 33 instead.
　一方、生産計画調整支援装置１における出力データ作成部１４０は、トランザクション情報記憶部１２０が有する各情報を取得し、更に、上述の生産計画作成部１３０が作成した生産計画情報１３１から、調整結果差分情報１４１（図１４）および調整後オーダ情報１４２（図１５）といった出力データを作成し、適宜な外部装置に出力する機能である。この調整結果差分情報１４１および調整後オーダ情報１４２については後述する。 On the other hand, the output data creation unit 140 in the production plan adjustment support apparatus 1 acquires each piece of information that the transaction information storage unit 120 has, and further adjusts the adjustment result difference from the production plan information 131 created by the production plan creation unit 130 described above. This is a function for creating output data such as information 141 (FIG. 14) and post-adjustment order information 142 (FIG. 15) and outputting the output data to an appropriate external device. The adjustment result difference information 141 and the adjusted order information 142 will be described later.
　また本実施形態における生産計画調整支援装置１は、一例として、生産計画の調整処理に用いる基準日にシステム日付を採用し、その日付を「４／１」とする。但し、基準日の設定形態としては、システム日付を採用する例に限定されず、外部から入力値として与えられたものを設定するとしてもよい。
－－－処理手順例－－－ Further, as an example, the production plan adjustment support apparatus 1 in the present embodiment adopts a system date as a reference date used for production plan adjustment processing, and sets the date to “4/1”. However, the setting form of the reference date is not limited to an example in which the system date is adopted, and a setting given as an input value from the outside may be set.
--- Example of processing procedure ---
　以下、本実施形態における生産計画調整支援方法の実際手順について図に基づき説明する。以下で説明する生産計画調整支援方法に対応する各種動作は、生産計画調整支援装置１が主記憶装置３０に読み出して実行するプログラム１００によって実現される。そして、このプログラム１００は、以下に説明される各種の動作を行うためのコードから構成されている。 Hereinafter, the actual procedure of the production plan adjustment support method in the present embodiment will be described with reference to the drawings. Various operations corresponding to the production plan adjustment support method described below are realized by a program 100 that the production plan adjustment support device 1 reads into the main storage device 30 and executes. And this program 100 is comprised from the code | cord | chord for performing the various operation | movement demonstrated below.
　図１６は、本実施形態に係る生産計画調整支援方法のフロー例１を示す図である。この場合、生産計画調整支援装置１の生産計画作成部１３０は、ステップ１６００において、オーダ情報１２１から生産計画情報１３１を作成する。本実施形態の生産計画作成部１３０は、図８に示すオーダ情報１２１におけるオーダ番号８０１が「Ｏｒｄｅｒ１」のオーダに対して、図１１に示す生産計画情報１３１における生産計画番号１１０１が「生産計画１」の生産計画を作成する。勿論、オーダ情報１２１における他のオーダに対する生産計画も同様の手順にて作成する。 FIG. 16 is a diagram showing a flow example 1 of the production plan adjustment support method according to the present embodiment. In this case, the production plan creation unit 130 of the production plan adjustment support device 1 creates production plan information 131 from the order information 121 in step 1600. The production plan creation unit 130 of the present embodiment sets the production plan number 1101 in the production plan information 131 shown in FIG. 11 to “production plan 1” for the order whose order number 801 in the order information 121 shown in FIG. Create a production plan. Of course, production plans for other orders in the order information 121 are created in the same procedure.
　具体的には、生産計画作成部１３０は、オーダ情報１２１における各レコードから、品目８０２、要求数量８０３、要求納期８０４、および優先度８０５の各値を抽出し、これを、生産計画情報１３１の品目１１０２、要求数量１１０３、要求工完日１１０４、および優先度１１０５の値として同値で設定し、生産計画情報１３１を作成する。 Specifically, the production plan creation unit 130 extracts each value of the item 802, the requested quantity 803, the requested delivery date 804, and the priority 805 from each record in the order information 121, and this is extracted from the production plan information 131. The production plan information 131 is created by setting the items 1102, the requested quantity 1103, the requested work completion date 1104, and the priority 1105 as the same values.
　次に、生産計画調整支援装置１は、ステップ１７００において、上述の生産計画情報１３１における各生産計画（図１１の例では、“生産計画１”～“生産計画３”）に対し、それぞれ必要な部品の数量を、部品表情報１１１の部品表１１７および生産計画情報１３１を使って求める。 Next, in step 1700, the production plan adjustment support apparatus 1 is necessary for each production plan (“production plan 1” to “production plan 3” in the example of FIG. 11) in the production plan information 131 described above. The quantity of parts is obtained using the parts table 117 and the production plan information 131 of the parts table information 111.
　具体的には、生産計画作成部１３０は、生産計画情報１３１にて定義されている品目１１０２について、その子部品と員数を部品表情報１１１の部品表１１７から特定し、品目１１０２を構成するために必要な子部品の数を算出する。また生産計画作成部１３０は、品目情報１１２において、その子部品の製造ないし調達に関して定義されている工程を特定する。こうして所定の品目について子部品の数と工程の情報を得た生産計画作成部１３０は、これら情報をＭＲＰ展開情報１３２における該当品目１２０２の数量１２０５および該当工程１２０４の各欄に登録する。生産計画作成部１３０は、この手順を生産計画情報１３１における各生産計画について、部品表情報１１１の部品表１１７で子部品が定義されていない品目（サプライヤからの購入品）となるまで繰り返す。 Specifically, the production plan creation unit 130 identifies the child parts and the number of items 1102 defined in the production plan information 131 from the parts table 117 of the parts table information 111 and configures the item 1102. Calculate the number of required child parts. In addition, the production plan creation unit 130 specifies a process defined in the item information 112 for manufacturing or procurement of the child parts. In this way, the production plan creation unit 130 that has obtained the information on the number of child parts and the process for a predetermined item registers the information in the columns 1205 and 1204 of the corresponding item 1202 in the MRP expansion information 132. The production plan creation unit 130 repeats this procedure for each production plan in the production plan information 131 until the child parts are not defined in the parts table 117 of the parts table information 111 (purchased from the supplier).
　上述した生産計画作成部１３０が、図１１に示す生産計画情報１３１の「生産計画１」に対して必要部品数を算出し、ＭＲＰ展開情報１３２に登録するまでのより具体的な手順を以下に示す。まず、生産計画作成部１３０は、生産計画情報１３１における「生産計画１」のレコードから、「生産計画１」において生産する品目が「製品Ａ」であり、その必要数量が「１０」、更には、要求工完日１１０４が「４／７」であるとの各値を読み取る。　また同様に、生産計画作成部１３０は、品目情報１１２において、品目が「製品Ａ」であるレコードを特定し、該当レコードにおける工程３０２の値として「ショップ１」を読み取る。この場合、生産計画作成部１３０は、ＭＲＰ展開情報１３２において、生産計画番号１２０１が「生産計画１」であるレコードを生成し、このレコードにおける品目１２０２に「製品Ａ」、部品レベル１２０３に「０」、工程１２０４に「ショップ１」、数量１２０５に「１０」と設定し、最早工完日１２０６と最適工完日１２０７は空白、要求工完日１２０８「４／７」と登録する。 A more specific procedure until the above-described production plan creation unit 130 calculates the required number of parts for “production plan 1” of the production plan information 131 shown in FIG. Show. First, the production plan creation unit 130 determines from the record of “production plan 1” in the production plan information 131 that the item to be produced in “production plan 1” is “product A”, its required quantity is “10”, Each value indicating that the requested construction completion date 1104 is “4/7” is read. Similarly, the production plan creation unit 130 identifies a record in which the item is “product A” in the item information 112 and reads “shop 1” as the value of the process 302 in the record. In this case, the production plan creation unit 130 generates a record in which the production plan number 1201 is “production plan 1” in the MRP expansion information 132, and “product A” is stored in the item 1202 and “0” is stored in the part level 1203. “Shop 1” is set in the process 1204, “10” is set in the quantity 1205, the earliest work completion date 1206 and the optimum work completion date 1207 are blank, and the requested work completion date 1208 “4/7” is registered.
　なお、部品レベル１２０３に「０」を設定したことは、既に述べた部品レベルの概念“生産計画情報１３１に定義されている生産計画の品目の部品レベルを「０」とする”に基づいている。 The setting of “0” for the part level 1203 is based on the part level concept “set the part level of the item of the production plan defined in the production plan information 131 to“ 0 ””. .
　次に生産計画作成部１３０は、部品表情報１１１より「製品Ａ」を親品目とする部品表１１７を検索し、その部品表１１７において子品目２０２が「半製品Ｂ」、その員数２０３（親品目１つに対する子品目の必要数量）が「１」との値を読み取る。ゆえに、「製品Ａ」を「１０」製造するためには「半製品Ｂ」が「１０」必要であり、その「半製品Ｂ」の製造、調達に要する工程は品目情報１１２より「ショップ２」である、と求められる。 Next, the production plan creation unit 130 searches the BOM 117 having “Product A” as a parent item from the BOM information 111, and the child item 202 is “Semi-product B” in the BOM 117, and its number 203 (parent The value of “1” is read for the necessary quantity of child items for one item. Therefore, in order to manufacture “10” of “product A”, “10” is required for “semi-finished product B”, and the process required to manufacture and procure “semi-finished product B” is “shop 2” from item information 112. Is required.
　従って生産計画作成部１３０は、ＭＲＰ展開情報１３２において、生産計画番号１２０１が「生産計画１」で品目１２０２が「半製品Ｂ」であるレコードを生成し、このレコードにおいて、部品レベル１２０３に「１」、工程１２０４に「ショップ２」、数量１２０５に「１０」の各値を設定し、最早工完日１２０６と最適工完日１２０７と要求工完日１２０８の各項目は空白とする。 Accordingly, the production plan creation unit 130 generates a record in which the production plan number 1201 is “production plan 1” and the item 1202 is “semi-finished product B” in the MRP expansion information 132. In this record, “1 ”,“ Shop 2 ”is set in the process 1204,“ 10 ”is set in the quantity 1205, and the items of the earliest work completion date 1206, the optimum work completion date 1207, and the requested work completion date 1208 are left blank.
　更に、生産計画作成部１３０は、上述と同様の手順で生産計画番号１２０１が「生産計画１」、品目１２０２が「部品Ｃ」のレコードを生成し、このレコードにおいて、部品レベル１２０３に「２」、工程１２０４に「部品倉庫」、数量１２０５に「１０」の各値を設定し、最早工完日１２０６と最適工完日１２０７と要求工完日１２０８の各項目は空白とする。 Further, the production plan creation unit 130 generates a record in which the production plan number 1201 is “production plan 1” and the item 1202 is “part C” in the same procedure as described above. In this record, the part level 1203 has “2”. Each value of “parts warehouse” is set in the process 1204 and “10” is set in the quantity 1205, and the items of the earliest work completion date 1206, the optimum work completion date 1207, and the requested work completion date 1208 are left blank.
　部品表情報１１１の部品表１１７において、「部品Ｃ」は末端部品である（部品Ｃを親部品とする品目がない）ことから、生産計画作成部１３０による本ステップ１７００における、「生産計画１」に関するＭＲＰ展開情報１３２への登録処理は以上で完了となる。生産計画作成部１３０は、こうした「生産計画１」と同様の手順で、生産計画情報１３１における残りに生産計画についてもＭＲＰ展開情報１３２への情報の登録を実行することとなる。 In the parts table 117 of the parts table information 111, “part C” is a terminal part (there is no item having the part C as a parent part), so “production plan 1” in this step 1700 by the production plan creation unit 130. This completes the registration process for the MRP expansion information 132 related to the above. The production plan creation unit 130 registers information in the MRP expansion information 132 for the remaining production plans in the production plan information 131 in the same procedure as the “production plan 1”.
　ここで図１６のフローの説明に戻る。続いて生産計画調整支援装置１は、ステップ１８００において、各オーダの最早納期日を算定する。この算定処理の詳細な手順は図１７のフローチャートにて示す。 Returning to the description of the flow in FIG. Subsequently, in step 1800, the production plan adjustment support device 1 calculates the earliest delivery date for each order. The detailed procedure of this calculation process is shown in the flowchart of FIG.
　まず、生産計画調整支援装置１の生産計画作成部１３０は、ステップ１８１０において、生産計画情報１３１中で未処理の生産計画のうち、最も優先度が高い、つまり優先度１１０５の絶対値が小さい生産計画を選択する。この選択は、優先度が高い、つまり重要な生産計画から順に、部品および生産能力などのリソースを割り当てるためである。このステップ１８１０の処理は、具体的には、例えば図１２で例示するＭＲＰ展開情報１３２において部品レベル「０」のＭＲＰ情報の最早工完日１２０６が空白である生産計画を、未処理の生産計画として特定し、ここで特定した生産計画が複数存在する場合、その優先度を生産計画情報１３１より読み出し、優先度１１０５の値が最小、すなわち優先度が最も高いものを選択する。なお、当該フローを最初に実行した際には、ＭＲＰ展開情報１３２における全ての生産計画について未処理となっている。よって、図１２で例示するＭＲＰ展開情報１３２についてのステップ１８１０の初回実行時であれば、部品レベル「０」のＭＲＰ情報の最早工完日１２０６が空白である生産計画のうち、優先度が高いものとして「生産計画１」が選択されることになる。 First, in step 1810, the production plan creation unit 130 of the production plan adjustment support apparatus 1 has the highest priority among the unprocessed production plans in the production plan information 131, that is, the production with the smallest absolute value of the priority 1105. Select a plan. This selection is for assigning resources such as parts and production capacity in order from the highest priority, that is, the important production plan. Specifically, for example, in the processing of step 1810, a production plan in which the earliest completion date 1206 of the MRP information at the part level “0” in the MRP expansion information 132 illustrated in FIG. When there are a plurality of production plans specified here, the priority is read from the production plan information 131, and the one with the lowest priority 1105, that is, the highest priority is selected. When the flow is first executed, all production plans in the MRP expansion information 132 are not processed. Therefore, at the time of the first execution of step 1810 for the MRP development information 132 illustrated in FIG. 12, the priority is high in the production plan in which the earliest work completion date 1206 of the MRP information at the part level “0” is blank. "Production plan 1" will be selected as a thing.
　次に、生産計画作成部１３０は、ステップ１８２０にて、上述のステップ１８１０で選択した生産計画において部品レベル１２０３が大きい品目から順に、該当工程での最早工完日を算出する。この最早工完日の算出処理に関する詳細な手順は、図１８に示すフローチャートを用いて説明する。 Next, in step 1820, the production plan creation unit 130 calculates the earliest work completion date in the corresponding process in order from the item having the higher part level 1203 in the production plan selected in step 1810 described above. The detailed procedure regarding the calculation process of the earliest work completion date will be described with reference to the flowchart shown in FIG.
　この場合、生産計画作成部１３０は、ステップ１８２１において、上述のステップ１８１０で選択した生産計画における未処理品目のうち、部品レベルが最大の工程を選択する。つまり未処理品目のうち最も末端部品に近い品目が定義された工程を選択し、処理対象とする。上述の未処理品目として、生産計画作成部１３０は、ＭＲＰ展開情報１３２における最早工完日１２０６が空白の品目を特定するものとする。また当然ながら、当該ステップ１８２１の初回実行時において、ＭＲＰ展開情報１３２の各レコードにおいて最早工完日１２０６は空欄となっている。よって上述の例では、「生産計画１」の未処理品目として、「製品Ａ」、「半製品Ｂ」、および「部品Ｃ」のうち、部品レベルが「２」で最大の「部品Ｃ」の調達に要する「部品倉庫」の工程を処理対象として選択することになる。 In this case, in step 1821, the production plan creation unit 130 selects a process having the maximum part level among the unprocessed items in the production plan selected in step 1810 described above. That is, the process in which the item closest to the terminal part is defined among the unprocessed items is selected and set as the processing target. As the above-mentioned unprocessed item, the production plan creation unit 130 specifies an item in which the earliest work completion date 1206 in the MRP expansion information 132 is blank. Further, as a matter of course, the earliest work completion date 1206 is blank in each record of the MRP development information 132 when the step 1821 is executed for the first time. Therefore, in the above-mentioned example, among the “Product A”, “Semi-finished product B”, and “Part C” as the unprocessed items of “Production plan 1”, the maximum “Part C” with the part level “2” The process of “parts warehouse” required for procurement is selected as a processing target.
　続いて生産計画作成部１３０は、ステップ１８２２において、上述のステップ１８２１で選択した工程について、該当工程で製造、調達する未処理品目の部品の最早充足日を算出する。この最早充足日の算出処理の詳細については、図１９に示すフローチャートを用いて説明する。 Subsequently, in step 1822, the production plan creation unit 130 calculates the earliest fulfillment date of the unprocessed item parts to be manufactured and procured in the corresponding process for the process selected in step 1821 described above. The details of the earliest satisfaction date calculation process will be described with reference to the flowchart shown in FIG.
　この場合、生産計画作成部１３０は、ステップ１８９１において、上述の未処理品目の部品に関して在庫情報１２３（図１０）にて検索を実行して、その在庫数量１００３の値を取得し、在庫引当可能か判定する。勿論、上述の検索により該当レコードの登録自体が無い場合、該当部品の在庫数量はゼロである。この判定の結果、該当部品に関して在庫引当可能である場合（１８９１：Ｙ）、生産計画作成部１３０は処理をステップ１８９２に進める。他方、上述の判定の結果、該当部品に関して在庫量が不足していて引当不可能である場合（１８９１：Ｎ）、生産計画作成部１３０は、処理をステップ１８９３へ進める。 In this case, in step 1891, the production plan creation unit 130 executes a search in the inventory information 123 (FIG. 10) for the above-described unprocessed item parts, acquires the value of the inventory quantity 1003, and can reserve the inventory. To determine. Of course, when there is no registration of the corresponding record by the above search, the inventory quantity of the corresponding part is zero. If the result of this determination is that inventory can be allocated for that part (1891: Y), the production plan creation unit 130 advances the process to step 1892. On the other hand, as a result of the above determination, if the inventory amount is insufficient for the relevant part and allocation is impossible (1891: N), the production plan creation unit 130 advances the process to Step 1893.
　ステップ１８９２において、生産計画作成部１３０は、該当部品の最早充足日として基準日を採用し、最早充足日の算出処理を終了する。なお、ここでの基準日は上述したように「４／１」である。在庫部品を部品倉庫での保管場所から取り出す作業は基準日中に可能である故である。 In step 1892, the production plan creation unit 130 adopts the reference date as the earliest satisfaction date of the corresponding part, and ends the earliest satisfaction date calculation process. The reference date here is “4/1” as described above. This is because it is possible to take out the stock parts from the storage location in the parts warehouse during the base day.
　また、ステップ１８９３において、生産計画作成部１３０は、上述の該当品目に関して発注残情報１２２（図９）にて検索を実行して、その発注数量９０３の値を取得し、サプライヤに発注済みであるが未受領の数量、すなわち発注残の引当が可能か判定する。この判定の結果、発注残の引当可能である場合（１８９３：Ｙ）、生産計画作成部１３０は、処理をステップ１８９４に進める。他方、上述の判定の結果、発注残が足りず引当不可能である場合（１８９３：Ｎ）、生産計画作成部１３０は、処理をステップ１８９５に進める。 In step 1893, the production plan creation unit 130 executes a search with the remaining order information 122 (FIG. 9) for the above-mentioned corresponding item, obtains the value of the order quantity 903, and has already been ordered from the supplier. Determines whether it is possible to reserve the unreceived quantity, that is, the remaining order. As a result of this determination, if the remaining order can be allocated (1893: Y), the production plan creation unit 130 advances the process to step 1894. On the other hand, as a result of the above determination, if there is not enough remaining ordering and cannot be allocated (1893: N), the production plan creating unit 130 advances the process to Step 1895.
　ステップ１８９４において、生産計画作成部１３０は、最早充足日として、引き当てる発注残の入庫予定日９０４を採用し、最早充足日の算出処理を終了する。他方、ステップ１８９５において、生産計画作成部１３０は、該当部品の部品レベルが、ステップ１８１０で選択した生産計画の各品目中で最大か、つまりＢＯＭにおいて末端部品か否か、ＭＲＰ展開情報１３２における該当生産計画の各レコードの部品レベルに基づいて判定する。この判定の結果、該当部品の部品レベルが最大である場合（１８９５：Ｙ）、生産計画作成部１３０は、処理をステップ１８９６に進める。他方、上述の判定の結果、該当部品の部品レベルが最大でなかった場合（１８９５：Ｎ）、生産計画作成部１３０は、処理をステップ１８９７に進める。 In step 1894, the production plan creation unit 130 adopts the scheduled remaining warehousing date 904 as the earliest fulfillment date, and ends the earliest fulfillment date calculation process. On the other hand, in step 1895, the production plan creation unit 130 determines whether the part level of the corresponding part is the maximum among the items of the production plan selected in step 1810, that is, whether it is a terminal part in the BOM. Judgment is made based on the part level of each record of the production plan. As a result of this determination, if the part level of the relevant part is the maximum (1895: Y), the production plan creation unit 130 advances the process to step 1896. On the other hand, as a result of the above determination, if the part level of the relevant part is not the maximum (1895: N), the production plan creation unit 130 advances the process to Step 1897.
　ステップ１８９６において、生産計画作成部１３０は、上述した部品レベルが最大、つまり末端部品をサプライヤから購入する場合の最早充足日を算出する。具体的には、生産計画作成部１３０は、上述の基準日に対し、購買に必要な日数（購買ＬＴ）を足しこんだ日付を最早充足日と算定する。なお、購買ＬＴの定義方法は品目ごと、サプライヤごと、あるいは全て共通で与えるなど方法は様々であり、本実施形態でもその手段は特定しない。 In step 1896, the production plan creation unit 130 calculates the earliest satisfaction date when the above-described part level is the maximum, that is, when the end part is purchased from the supplier. Specifically, the production plan creation unit 130 calculates the date when the number of days required for purchase (purchasing LT) is added to the reference date described above as the earliest satisfaction date. Note that there are various methods for defining the purchase LT for each item, for each supplier, or for giving all in common, and this means is not specified in this embodiment.
　一方、ステップ１８９７において、生産計画作成部１３０は、該当部品を他の工程で製造する場合の最早充足日を算出する。具体的には、生産計画作成部１３０は、該当部品を製造する工程すなわち供給元工程をＭＲＰ展開情報１３２にて検索して、該当工程における最早工完日（部品レベルが大きい品目、工程から処理するため、必ず算出済であり、その結果がＭＲＰ展開情報１３２に登録されている）を特定し、更に、該当工程すなわち供給元工程とステップ１８２１で選択している工程すなわち使用先工程との間について規定されている供給ＬＴを工程間情報１１３で特定し、上述の最早工完日に対して供給ＬＴを足し込んだ日付を最早充足日と算定する。 On the other hand, in step 1897, the production plan creation unit 130 calculates the earliest satisfaction date when the corresponding part is manufactured in another process. Specifically, the production plan creation unit 130 searches the MRP expansion information 132 for a process for manufacturing the corresponding part, that is, a supplier process, and completes the earliest work completion date in the corresponding process (from the item or process having a high part level) Therefore, it has been calculated and the result is registered in the MRP development information 132), and further, between the corresponding process, that is, the supply source process and the process selected in step 1821, that is, the use destination process. The supply LT specified for is specified by the inter-process information 113, and the date when the supply LT is added to the above-mentioned earliest work completion date is calculated as the earliest fulfillment date.
　なお、上述の例における「生産計画１」の「部品Ｃ」に関しては在庫情報１２３より在庫引当が可能となるため、最早充足日は基準日「４／１」となる。 It should be noted that because “part C” of “production plan 1” in the above example can be allocated from the inventory information 123, the earliest fulfillment date is the reference date “4/1”.
　ここで図１８のフローの説明に戻る。次に、生産計画作成部１３０は、ステップ１８２３において、上述のステップ１８２１で選択した該当工程に関し、工程能力情報１１４（図５）を参照して、生産能力が定義されているか判定する。この判定の結果、生産能力が定義されている場合（１８２３：Ｙ）、生産計画作成部１３０は、処理をステップ１８２４に進める。他方、上述の判定の結果、生産能力が定義されていない場合（１８２３：Ｎ）、生産計画作成部１３０は、処理をステップ１８２７に進める。例えば、該当工程が「部品倉庫」である場合、図５に示す工程能力情報１１４において、この「部品倉庫」に関するレコードが存在しない、つまり「部品倉庫」には生産能力は定義されていないことがわかる。よってこの場合は処理はステップ１８２７へ進むことになる。 Here, it returns to the description of the flow of FIG. Next, in step 1823, the production plan creation unit 130 refers to the process capability information 114 (FIG. 5) and determines whether the production capability is defined for the corresponding process selected in step 1821 described above. As a result of the determination, if the production capacity is defined (1823: Y), the production plan creation unit 130 advances the process to Step 1824. On the other hand, as a result of the above determination, if the production capacity is not defined (1823: N), the production plan creation unit 130 advances the process to Step 1827. For example, if the corresponding process is “parts warehouse”, there is no record regarding “parts warehouse” in the process capability information 114 shown in FIG. 5, that is, no production capacity is defined in “parts warehouse”. Recognize. Therefore, in this case, the process proceeds to step 1827.
　続いてステップ１８２７において、生産計画作成部１３０は、最早工完日として、上述のステップ１８２２、すなわち図１９のフローにて算出した最早充足日を採用し、その結果をＭＲＰ展開情報１３２における最早工完日１２０６の項目に登録する。よって本実施形態のＭＲＰ展開情報１３２に対し、例えば「生産計画１」の「部品Ｃ」の「部品倉庫」における最早工完日１２０６を「４／１」として登録することとなる。なお、ここでの「生産計画１」の「部品Ｃ」に関する最早工完日等の計算結果５２は、詳細は後述する図２４にも示している。 Subsequently, in Step 1827, the production plan creation unit 130 adopts the earliest fulfillment date calculated in Step 1822 described above, that is, the flow of FIG. 19 as the earliest work completion date, and the result is the earliest work in the MRP development information 132. Register in the item of complete date 1206. Therefore, for example, the earliest work completion date 1206 in “part warehouse” of “part C” of “production plan 1” is registered as “4/1” in the MRP development information 132 of the present embodiment. The calculation result 52 such as the earliest work completion date for “part C” of “production plan 1” here is also shown in detail in FIG.
　次に生産計画作成部１３０は、ステップ１８２８において、上述のステップ１８２１での選択工程における品目の部品レベルが「０」、すなわち製品かそれ以外の半製品や部品であるか判定する。この判定の結果、該当品目の部品レベルが「０」であった場合（１８２８：Ｙ）、生産計画作成部１３０は、本フローの処理を終了する。他方、上述の判定の結果、該当品目の部品レベルが「０」でなかった場合（１８２８：Ｎ）、生産計画作成部１３０は、処理をステップ１８２１に戻す。本実施形態におけるここまでのフローにて選択している工程である「生産計画１」の「部品Ｃ」の部品レベルは「２」であるから、このステップ１８２８での判定結果は「ＮＯ」であり、処理はステップ１８２１に戻ることとなる。 Next, in step 1828, the production plan creation unit 130 determines whether the part level of the item in the selection process in step 1821 described above is “0”, that is, a product or other semi-finished product or part. As a result of the determination, when the part level of the corresponding item is “0” (1828: Y), the production plan creation unit 130 ends the process of this flow. On the other hand, as a result of the above determination, if the part level of the corresponding item is not “0” (1828: N), the production plan creation unit 130 returns the process to step 1821. Since the part level of “part C” of “production plan 1”, which is the process selected in the flow so far in the present embodiment, is “2”, the determination result in this step 1828 is “NO”. Yes, the process returns to step 1821.
　以下、生産計画作成部１３０は、ステップ１８２８で判定が「Ｙ」になるまでステップ１８２１からステップ１８２８を繰り返す。本実施形態では、引き続き「生産計画１」の例で説明する。なお、重複する説明は省略し、結果だけを記述する。 Hereinafter, the production plan creation unit 130 repeats Step 1821 to Step 1828 until the determination becomes “Y” in Step 1828. In the present embodiment, an example of “production plan 1” will be described. Note that duplicate descriptions are omitted, and only the results are described.
　ここまでのフローの説明における再度のステップ１８２１にて、生産計画作成部１３０は、ＭＲＰ展開情報１３２の「生産計画１」に関するレコードのうち、上述したとおり部品レベルが「２」の「部品Ｃ」以外のレコードを参照し、そのうちで部品レベルが「１」で最大の品目「半製品Ｂ」、その工程「ショップ２」を選択する。 In step 1821 in the description of the flow so far, the production plan creation unit 130 among the records related to “production plan 1” of the MRP expansion information 132, “part C” whose part level is “2” as described above. A record other than is referred to, and the item “semi-finished product B” having the component level “1” and the process “shop 2” is selected.
　次なるステップ１８２２において生産計画作成部１３０は、上述の「半製品Ｂ」の最早充足日を図１９のフローに従って上述同様に算出する。この「半製品Ｂ」は、在庫情報１２３（図１０）によると在庫無し、また発注残情報１２２（図９）によるとサプライヤからの入庫予定も無い品目であり、その部品レベルは最大でない。従って生産計画作成部１３０は、「半製品Ｂ」の最早充足日を、在庫も発注残もなく、また部品レベルも最大ではないと認識し（図１９のフローにおいて、ステップ１８９１：Ｎ→１８９３：Ｎ→１８９５：Ｎ）、当該「半製品Ｂ」を構成するための「部品Ｃ」の最早工完日「４／１」に、「部品Ｃ」の工程から「半製品Ｂ」の工程までの供給ＬＴを加算し、「半製品Ｂ」のための「部品Ｃ」の最早充足日を算出する。 In the next step 1822, the production plan creation unit 130 calculates the earliest fulfillment date of the above-mentioned “semi-finished product B” according to the flow of FIG. The “semi-finished product B” is an item that is out of stock according to the inventory information 123 (FIG. 10) and that is not scheduled to be received from the supplier according to the remaining order information 122 (FIG. 9). Accordingly, the production plan creation unit 130 recognizes that the earliest fulfillment date of “semi-finished product B” is that there is no inventory, no remaining orders, and the part level is not the maximum (in the flow of FIG. 19, Step 1891: N → 1893: N → 1895: N), from the process of “part C” to the process of “semi-finished product B” on “4/1”, the earliest completion date of “part C” for composing the “semi-finished product B” The supply LT is added, and the earliest satisfaction date of “part C” for “semi-finished product B” is calculated.
　上述の例の場合であれば、生産計画作成部１３０は、「部品Ｃ」の出庫元である供給元工程「部品倉庫」から入庫先である使用先工程「ショップ２」への供給ＬＴを、工程間情報１１３（図４）より「１」日と特定し、この１日を、「半製品Ｂ」を構成するための「部品Ｃ」の最早工完日「４／１」に加算し、「４／１」＋「１日」＝「４／２」を算出することとなる。 In the case of the above-described example, the production plan creation unit 130 supplies the supply LT from the supply source process “parts warehouse” that is the delivery source of “part C” to the use destination process “shop 2” that is the receipt destination. From the inter-process information 113 (FIG. 4), specify “1” day, and add this one day to the earliest work completion date “4/1” of “part C” for configuring “semi-finished product B”. “4/1” + “1 day” = “4/2” is calculated.
　続いてステップ１８２３において、生産計画作成部１３０は、上述の「半製品Ｂ」の工程「ショップ２」が生産能力を有するか、工程能力情報１１４（図５）を参照して判定する。この判定の結果、該当工程について工程能力情報１１４にて生産能力が定義されていた場合（ステップ１８２３：Ｙ）、生産計画作成部１３０は、部品生産を該当工程に設定すべき負荷割付処理対象であると認識し、処理をステップ１８２４に進める。他方、上述の判定の結果、該当工程について工程能力情報１１４にて生産能力が定義されていない場合（ステップ１８２３：Ｎ）、生産計画作成部１３０は、処理をステップ１８２７に進める。図５の例であれば、「ショップ２」なる工程に対して生産能力が「６」と定義されている。よって生産計画作成部１３０は、この「ショップ２」なる工程は生産能力を有していると判定することとなる。 Subsequently, in Step 1823, the production plan creation unit 130 determines whether or not the above-described “semi-finished product B” process “shop 2” has a production capacity with reference to the process capability information 114 (FIG. 5). As a result of this determination, if the production capability is defined in the process capability information 114 for the corresponding process (step 1823: Y), the production plan creation unit 130 is a load allocation process target that should set the part production to the corresponding process. It is recognized that there is, and the process proceeds to Step 1824. On the other hand, as a result of the above determination, if the production capability is not defined in the process capability information 114 for the corresponding process (step 1823: N), the production plan creation unit 130 advances the process to step 1827. In the example of FIG. 5, the production capacity is defined as “6” for the process “shop 2”. Therefore, the production plan creation unit 130 determines that the process “shop 2” has a production capacity.
　次に生産計画作成部１３０は、ステップ１８２４において、山積み対象となる総負荷量を、「（品目の）単位負荷量×生産数量」で算出する。なお、生産計画における負荷とは、生産にかかる作業量を意味している。また、山積みは、各品目を製造するために必要な工程に作業量を割り振ることを意味している。本実施形態では、図６に示す品目負荷情報１１５より、「ショップ２」における「半製品Ｂ」の単位負荷量は「０．５」であり、ＭＲＰ展開情報１３２より「半製品Ｂ」の生産数量は「１０」と特定できることから、「半製品Ｂ」を「１０」生産する際の総負荷量は０．５×１０＝５と算出されることとなる。 Next, in step 1824, the production plan creation unit 130 calculates the total load amount to be piled up by “unit load amount (of item) × production quantity”. In addition, the load in a production plan means the work amount concerning production. In addition, stacking means allocating work amounts to processes necessary for manufacturing each item. In the present embodiment, from the item load information 115 shown in FIG. 6, the unit load amount of “semi-finished product B” in “shop 2” is “0.5”, and the production of “semi-finished product B” from MRP development information 132 is shown. Since the quantity can be specified as “10”, the total load amount when “10” is produced for “semi-finished product B” is calculated as 0.5 × 10 = 5.
　続いて生産計画作成部１３０は、ステップ１８２５において、負荷の最早割付日として、最早充足日以降で、上述の総負荷量以上の空き能力を有する最早の日を探索する。すでに述べたように、各工程の各日の空き能力については主記憶装置３０にて管理している。本実施形態における各工程の空き能力の値については、図２４～２８、３０～３３で簡易的に示した。こうした本実施形態の場合、上述のステップ１８２２にて「部品Ｃ」について算出した最早充足日「４／２」以降で、ステップ１８２４にて算出した負荷量「５」を割付できる最早の日を探索すると、生産能力「６」を有する「４／２」に割付可能であることが判明する。よって生産計画作成部１３０は、「部品Ｃ」を用いて「半製品Ｂ」を生産する場合の最早割付日を「４／２」と特定することになる。 Subsequently, in Step 1825, the production plan creation unit 130 searches for the earliest day having the free capacity equal to or greater than the total load amount after the earliest fulfillment date as the earliest allocation date of the load. As already described, the free capacity of each day of each process is managed in the main storage device 30. The vacancy values of the respective steps in this embodiment are simply shown in FIGS. 24 to 28 and 30 to 33. In this embodiment, the earliest date on which the load amount “5” calculated in step 1824 can be allocated after the earliest satisfaction date “4/2” calculated for “part C” in step 1822 described above is searched. Then, it is found that the allocation can be made to “4/2” having the production capacity “6”. Therefore, the production plan creation unit 130 specifies “4/2” as the earliest allocation date when “semi-finished product B” is produced using “part C”.
　生産計画作成部１３０は、ここまでで得た各値を、負荷割付結果情報１３３（図１３）における、生産計画番号１３０１が「生産計画１」、品目１３０２が「半製品Ｂ」、工程１３０３が「ショップ２」、数量１３０４が「１０」、最早割付日１３０５が「４／２」として登録する。また、この結果を踏まえて「ショップ２」における「４／２」の空き能力を「５」減らして「１」とする。こうした「ショップ２」における空き能力の変遷は図２４～図２５に示す。 The production plan creation unit 130 uses the values obtained so far in the load allocation result information 133 (FIG. 13) as the production plan number 1301 is “production plan 1”, the item 1302 is “half-finished product B”, and the process 1303 is “Shop 2”, quantity 1304 is registered as “10”, and earliest allocation date 1305 is registered as “4/2”. Based on this result, the free capacity of “4/2” in “Shop 2” is reduced by “5” to “1”. The transition of free capacity in “Shop 2” is shown in FIGS.
　次に生産計画作成部１３０は、ステップ１８２６において、最早工完日を、上述のステップ１８２５で得た最早割付日に「製造ＬＴ－１」の日数を加算して算出する。製造ＬＴから１日を引くのは、製造開始日を１日と数え上げるためである。つまり、製造ＬＴ＝１日の場合は、製造開始日＝製造終了日となる。 Next, in step 1826, the production plan creation unit 130 calculates the earliest work completion date by adding the number of days of “manufacturing LT-1” to the earliest allocation date obtained in step 1825 described above. The reason for subtracting one day from the production LT is to count the production start date as one day. That is, in the case of manufacturing LT = 1 day, the manufacturing start date = the manufacturing end date.
　本実施形態の場合、図３に示す品目情報１１２において「半製品Ｂ」の製造ＬＴは「１」日である。よって、最早工完日は、早割付日「４／２」＋製造ＬＴ「１」日－１日＝「４／２」と算定できる。生産計画作成部１３０は、この算定結果を、ＭＲＰ展開情報１３２における「生産計画１」、「半製品Ｂ」のレコードの、最早工完日１２０７の項目に登録する。なお、ここでの「生産計画１」の「半製品Ｂ」に関する最早工完日等の計算結果５３は、詳細は後述する図２５にも示している。 In the case of the present embodiment, the production LT of “semi-finished product B” in the item information 112 shown in FIG. 3 is “1” day. Therefore, the earliest work completion date can be calculated as early allocation date “4/2” + manufacturing LT “1” date−1 day = “4/2”. The production plan creation unit 130 registers the calculation result in the item of the earliest work completion date 1207 in the records of “production plan 1” and “semi-finished product B” in the MRP development information 132. The calculation result 53 such as the earliest work completion date for “semi-finished product B” of “production plan 1” is also shown in detail in FIG.
　続くステップ１８２８において、生産計画作成部１３０は、今回のステップ１８２１で選択した工程「ショップ２」の「半製品Ｂ」の部品レベルは「１」であるため、「０」でないと判定し（１８２８：Ｎ）、処理をステップ１８２１に戻す。 In subsequent step 1828, the production plan creation unit 130 determines that the part level of “semi-finished product B” in the process “shop 2” selected in step 1821 this time is “1” and is not “0” (1828). : N), the process returns to step 1821.
　上述した本実施形態での３回目となるステップ１８２１において、生産計画作成部１３０は、ＭＲＰ展開情報１３２の「生産計画１」に関するレコードのうち、上述したとおり部品レベルが「２」の「部品Ｃ」、および部品レベルが「１」の「半製品Ｂ」以外のレコードを参照し、残り１つのレコード、すなわち部品レベルが「０」で最大の品目「製品Ａ」、その工程「ショップ１」を選択する。 In step 1821 which is the third time in the present embodiment described above, the production plan creation unit 130 among the records related to “production plan 1” of the MRP expansion information 132, as described above, “part C” whose part level is “2”. ”And a record other than“ semi-finished product B ”whose part level is“ 1 ”, and the remaining item, that is, the item“ product A ”whose part level is“ 0 ”and the largest process“ shop 1 ”is selected. select.
　次なるステップ１８２２において生産計画作成部１３０は、上述の「製品Ａ」の最早充足日を図１９のフローに従って上述同様に算出する。この「製品Ａ」は、在庫情報１２３（図１０）によると在庫無し、また最終製品であるから当然ながら、発注残情報１２２（図９）によるとサプライヤからの入庫予定も無い品目であり、その部品レベルは最大である。従って生産計画作成部１３０は、「製品Ａ」の最早充足日を、在庫も発注残もなく、また部品レベルが最大でないと認識し（図１９のフローにおいて、ステップ１８９１：Ｎ→１８９３：Ｎ→１８９５：Ｎ）、当該「製品Ａ」を構成するための「半製品Ｂ」の最早工完日「４／２」に、「半製品Ｂ」の工程から「製品Ａ」の工程までの供給ＬＴを加算し、「製品Ａ」のための「半製品Ｂ」の最早充足日を算出する。 In the next step 1822, the production plan creation unit 130 calculates the earliest fulfillment date of the above-mentioned “product A” in the same manner as described above according to the flow of FIG. According to the inventory information 123 (FIG. 10), this “product A” is out of stock, and since it is a final product, of course, according to the remaining order information 122 (FIG. 9), there is no planned entry from the supplier. The component level is maximum. Therefore, the production plan creation unit 130 recognizes that the earliest fulfillment date of “product A” is neither in stock nor in order, and that the part level is not the maximum (step 1891: N → 1893: N → in the flow of FIG. 19). 1895: N), the supply LT from the process of “semi-finished product B” to the process of “product A” on the “4/2” earliest completion date of “semi-finished product B” for constituting the “product A” And the earliest fulfillment date of “semi-finished product B” for “product A” is calculated.
　上述の例の場合であれば、生産計画作成部１３０は、「半製品Ｂ」の出庫元である供給元工程「ショップ２」から入庫先である使用先工程「ショップ１」への供給ＬＴを、工程間情報１１３（図４）より「１」日と特定し、この１日を、「製品Ａ」を構成するための「半製品Ｂ」の最早工完日「４／２」に加算し、「４／２」＋「１日」＝「４／３」を算出することとなる。 In the case of the above example, the production plan creation unit 130 calculates the supply LT from the supply source process “shop 2”, which is the delivery source of “semi-finished product B”, to the use destination process “shop 1”, which is the receipt destination. The inter-process information 113 (FIG. 4) specifies “1” day, and this one day is added to the earliest work completion date “4/2” of “semi-finished product B” for constituting “product A”. , “4/2” + “1 day” = “4/3” is calculated.
　続いてステップ１８２３において、生産計画作成部１３０は、上述の「製品Ａ」の工程「ショップ１」が生産能力を有するか、工程能力情報１１４（図５）を参照して判定する。図５の例であれば、「ショップ１」なる工程に対して生産能力が「１０」と定義されている。よって生産計画作成部１３０は、この「ショップ１」なる工程は生産能力を有していると判定し、処理をステップ１８２４に進める。 Subsequently, in step 1823, the production plan creation unit 130 determines whether or not the process “shop 1” of the above “product A” has a production capacity with reference to the process capability information 114 (FIG. 5). In the example of FIG. 5, the production capacity is defined as “10” for the process “shop 1”. Therefore, the production plan creation unit 130 determines that the process “shop 1” has a production capacity, and advances the process to step 1824.
　次に生産計画作成部１３０は、ステップ１８２４において、山積み対象となる総負荷量を、「（品目の）単位負荷量×生産数量」で算出する。本実施形態では、図６に示す品目負荷情報１１５より、「ショップ１」における「製品Ａ」の単位負荷量は「１」であり、ＭＲＰ展開情報１３２より「製品Ａ」の生産数量は「１０」と特定できることから、「製品Ａ」を「１０」生産する際の総負荷量は１×１０＝１０と算出されることとなる。 Next, in step 1824, the production plan creation unit 130 calculates the total load amount to be piled up by “unit load amount (of item) × production quantity”. In the present embodiment, from the item load information 115 shown in FIG. 6, the unit load amount of “Product A” in “Shop 1” is “1”, and the production quantity of “Product A” is “10” from the MRP development information 132. Therefore, the total load amount when “10” is produced for “Product A” is calculated as 1 × 10 = 10.
　続いて生産計画作成部１３０は、ステップ１８２５において、負荷の最早割付日として、最早充足日以降で、上述の総負荷量以上の空き能力を有する最早の日を探索する。本実施形態の場合、上述のステップ１８２２にて「半製品Ｂ」について算出した最早充足日「４／３」以降で、ステップ１８２４にて算出した負荷量「１０」を割付できる最早の日を探索すると、生産能力「１０」を有する「４／３」に割付可能であることが判明する。よって生産計画作成部１３０は、「半製品Ｂ」を用いて「製品Ａ」を生産する場合の最早割付日を「４／３」と特定することになる。 Subsequently, in Step 1825, the production plan creation unit 130 searches for the earliest day having the free capacity equal to or greater than the total load amount after the earliest fulfillment date as the earliest allocation date of the load. In the case of the present embodiment, the earliest date on which the load amount “10” calculated in step 1824 can be allocated after the earliest satisfaction date “4/3” calculated for “semi-finished product B” in step 1822 described above is searched. Then, it becomes clear that it can be assigned to “4/3” having the production capacity “10”. Therefore, the production plan creation unit 130 specifies “4/3” as the earliest allocation date when “product A” is produced using “semi-finished product B”.
　生産計画作成部１３０は、ここまでで得た各値を、負荷割付結果情報１３３（図１３）における、生産計画番号１３０１が「生産計画１」、品目１３０２が「製品Ａ」、工程１３０３が「ショップ１」、数量１３０４が「１０」、最早割付日１３０５が「４／３」として登録する。また、この結果を踏まえて「ショップ１」における「４／３」の空き能力を「１０」減らして「０」とする。こうした「ショップ１」における空き能力の変遷は図２５～図２６に示す。 The production plan creation unit 130 uses the values obtained so far in the load allocation result information 133 (FIG. 13) as “production plan 1” for the production plan number 130, “product A” for the item 1302, and “product A” for the process 1303. “Shop 1”, quantity 1304 is registered as “10”, and earliest allocation date 1305 is registered as “4/3”. Based on this result, the free capacity of “4/3” in “Shop 1” is reduced by “10” to “0”. The transition of the free capacity in “Shop 1” is shown in FIGS.
　次に生産計画作成部１３０は、ステップ１８２６において、最早工完日を、上述のステップ１８２５で得た最早割付日に「製造ＬＴ－１」の日数を加算して算出する。本実施形態の場合、図３に示す品目情報１１２において「製品Ａ」の製造ＬＴは「１」日である。よって、最早工完日は、早割付日「４／３」＋製造ＬＴ「１」日－１日＝「４／３」と算定できる。生産計画作成部１３０は、この算定結果を、ＭＲＰ展開情報１３２における「生産計画１」、「製品Ａ」のレコードの、最早工完日１２０７の項目に登録する。なお、ここでの「生産計画１」の「製品Ａ」に関する最早工完日等の計算結果５１は、詳細は後述する図２６にも示している。以上で、図１７のフローチャートにおけるステップ１８２０の処理が終了する。 Next, in step 1826, the production plan creation unit 130 calculates the earliest work completion date by adding the number of days of “manufacturing LT-1” to the earliest allocation date obtained in step 1825 described above. In the present embodiment, the production LT of “Product A” in the item information 112 shown in FIG. 3 is “1” day. Therefore, the earliest work completion date can be calculated as early allocation date “4/3” + manufacturing LT “1” date−1 day = “4/3”. The production plan creation unit 130 registers this calculation result in the item of the earliest work completion date 1207 in the records of “production plan 1” and “product A” in the MRP development information 132. The calculation result 51 such as the earliest work completion date for “Product A” in “Production Plan 1” here is also shown in detail in FIG. Thus, the process of step 1820 in the flowchart of FIG. 17 ends.
　ここで図１７のフローにおけるステップ１８３０以降の説明に戻る。生産計画作成部１３０は、ステップ１８３０において、部品レベル「０」の要求工完日＜最早工完日、となっているか判定する。この判定の結果、部品レベル「０」の要求工完日＜最早工完日、すなわち、部品レベル「０」の要求工完日が最早工完日より早い場合（ステップ１８３０：Ｙ）、生産計画作成部１３０は処理をステップ１８４０に進める。他方、上述の判定の結果、部品レベル「０」の要求工完日＜最早工完日、すなわち、部品レベル「０」の要求工完日が最早工完日より遅い場合（ステップ１８３０：Ｎ）、生産計画作成部１３０は処理をステップ１８６０に進める。 Here, the description returns to step 1830 and subsequent steps in the flow of FIG. In step 1830, the production plan creation unit 130 determines whether the required work completion date of the component level “0” is less than the earliest work completion date. As a result of this determination, if the required work completion date of the part level “0” <the earliest work completion date, that is, if the required work completion date of the part level “0” is earlier than the earliest work completion date (step 1830: Y), the production plan The creation unit 130 advances the process to Step 1840. On the other hand, as a result of the determination described above, the required work completion date of the part level “0” <the earliest work completion date, that is, the required work completion date of the part level “0” is later than the earliest work completion date (step 1830: N). The production plan creation unit 130 proceeds with the process to step 1860.
　図１２で例示する本実施形態のＭＲＰ展開情報１３２において、「生産計画１」の部品レベル「０」、つまり「製品Ａ」の要求工完日は「４／７」、最早工完日は「４／３」である。よって、この場合、要求工完日より最早工完日の方が早い。よって生産計画作成部１３０は、処理をステップ１８６０へ進めることとなる。 In the MRP development information 132 of this embodiment illustrated in FIG. 12, the part level “0” of “Production Plan 1”, that is, the required work completion date of “Product A” is “4/7”, and the earliest work completion date is “4/7”. 4/3 ". Therefore, in this case, the construction completion date is earlier than the requested construction completion date. Therefore, the production plan creation unit 130 proceeds with the process to step 1860.
　生産計画作成部１３０は、ステップ１８６０において、調整後オーダ情報１４２（図１５）における調整後納期１４０４の項目に、要求工完日「４／７」を登録する。要求工完日を調整後納期とするのは、最早工完日「４／３」が要求工完日「４／７」以前であるため、顧客からの要求納期を満たすことができるからである。 In step 1860, the production plan creation unit 130 registers the requested work completion date “4/7” in the item of the adjusted delivery date 1404 in the adjusted order information 142 (FIG. 15). The reason that the requested work completion date is the adjusted delivery date is that the earliest work completion date “4/3” is before the requested work completion date “4/7”, so that the requested delivery date from the customer can be satisfied. .
　次に生産計画作成部１３０は、ステップ１８７０において、ＭＲＰ展開情報１３２の全レコードにおける最早工完日１２０６の値が設定されている参照して、全ての生産計画に対して最早工完日の算出処理済か判定する。この判定の結果、ＭＲＰ展開情報１３２の全レコードにおいて最早工完日１２０６の値が設定されている、すなわち全ての生産計画に対して最早工完日の算出処理済みである場合（ステップ１８７０：Ｙ）、生産計画作成部１３０は当該フローの処理を終了する。他方、上述の判定の結果、最早工完日の算出処理が済んでいない生産計画が残っている場合（ステップ１８７０：Ｎ）、生産計画作成部１３０は処理をステップ１８１０に戻す。上述までの本実施形態に関するフロー説明では、「生産計画２」および「生産計画３」が最早工完日算出に関して未処理のため、ステップ１８１０へ処理が戻されることとなる。 Next, in step 1870, the production plan creation unit 130 refers to the value of the earliest work completion date 1206 set in all records of the MRP expansion information 132, and calculates the earliest work completion date for all production plans. Judge whether processed. As a result of this determination, when the value of the earliest work completion date 1206 is set in all the records of the MRP development information 132, that is, the calculation process of the earliest work completion date has been completed for all production plans (step 1870: Y ), The production plan creation unit 130 ends the process of the flow. On the other hand, as a result of the above determination, if there is a production plan that has not been subjected to the calculation process for the earliest work completion date (step 1870: N), the production plan creation unit 130 returns the process to step 1810. In the flow description related to the present embodiment up to the above, since “production plan 2” and “production plan 3” are not yet processed regarding the calculation of the earliest work completion date, the processing is returned to step 1810.
　こうして生産計画作成部１３０は、生産計画情報１３１での優先度１１０５の値に従い、優先度の高い「生産計画３」から「生産計画２」の順で、ステップ１８１０～１８７０を実行する。「生産計画３」は「生産計画１」と同じフローをたどって最早工完日が計算されることなる。 Thus, the production plan creation unit 130 executes Steps 1810 to 1870 in the order of “Production Plan 3” to “Production Plan 2” having the highest priority according to the value of the priority 1105 in the production plan information 131. “Production plan 3” follows the same flow as “production plan 1”, and the earliest work completion date is calculated.
　例えば、生産計画作成部１３０は、「生産計画３」の「部品Ｃ」に関し、在庫情報１２３（図１０）の在庫数量１００３の値（すでに生産計画１の部品Ｃに全て引当済み）から、在庫引当不可と判定し、発注残情報１２２（図９）の発注数量９０３の値から、発注残「１０」の引当が可能と判定し、最早充足日を入庫予定日「４／１」とする。また、該当工程の「部品倉庫」について、工程能力情報１１４にて生産能力は定義されていないため、最早工完日として最早充足日「４／１」を採用し、ＭＲＰ展開情報１３２における最早工完日１２０６の項目に登録する。以降、生産計画作成部１３０は、「生産計画３」の他の品目である、「半製品Ｂ」、「製品Ａ」についても最早充足日、最早工完日の算定を実行し、ステップ１８３０～１８７０の処理を実行するのである。そうした一連の処理の結果を図２７に示す。図２７で例示するように、「生産計画３」に関して、最早工完日は、「部品Ｃ」が「４／１」、「半製品Ｂ」が「４／３」、「製品Ａ」が「４／４」となる。 For example, with respect to “part C” of “production plan 3”, the production plan creation unit 130 determines the inventory from the value of the inventory quantity 1003 of the inventory information 123 (FIG. 10) (already allocated to part C of production plan 1). It is determined that allocation is not possible, and it is determined from the value of the order quantity 903 in the remaining order information 122 (FIG. 9) that it is possible to allocate the remaining order “10”, and the earliest fulfillment date is set as the scheduled receipt date “4/1”. In addition, since the production capacity is not defined in the process capability information 114 for the “part warehouse” of the corresponding process, the earliest fulfillment date “4/1” is adopted as the earliest work completion date, and the earliest work in the MRP development information 132 is performed. Register in the item of complete date 1206. Thereafter, the production plan creation unit 130 executes the calculation of the earliest fulfillment date and the earliest work completion date for “half-finished product B” and “product A”, which are other items of “production plan 3”. The process 1870 is executed. The result of such a series of processing is shown in FIG. As illustrated in FIG. 27, regarding “production plan 3”, the earliest work completion date is “part C” is “4/1”, “semi-finished product B” is “4/3”, and “product A” is “ 4/4 ".
　一方、「生産計画２」について上述の各処理を実行すると、図２８で例示するように、最早工完日は、「部品Ｃ」が「４／７」、「半製品Ｂ」が「４／８」、「製品Ａ」が「４／９」となる。よってステップ１８３０における判定の結果、部品レベル「０」の要求工完日が最早工完日より小さい、すなわち要求工完日より最早工完日が遅いことが判明する（ステップ１８３０：Ｙ）。よって生産計画作成部１３０は、処理をステップ１８４０に進める。 On the other hand, when the above-described processes are executed for “production plan 2”, as shown in FIG. 28, “Part C” is “4/7” and “Semi-finished product B” is “4 / 8 ”and“ Product A ”become“ 4/9 ”. Therefore, as a result of the determination in step 1830, it is found that the requested work completion date of the part level “0” is smaller than the earliest work completion date, that is, the earliest work completion date is later than the requested work completion date (step 1830: Y). Therefore, the production plan creation unit 130 proceeds with the process to step 1840.
　この場合、生産計画作成部１３０は、ステップ１８４０において、「生産計画２」の元となっているオーダ「Ｏｒｄｅｒ２」の最早納期に最早工完日を採用する。よって生産計画作成部１３０は、ステップ１８５０において、調整後オーダ情報１４１における「Ｏｒｄｅｒ２」に関する調整後納期１４０４の項目に、上述の「生産計画２」の最早納期である「４／９」を登録する。この「生産計画２」に関する一連の処理が終了した時点で、ステップ１８７０（図１７）において、全ての生産計画が処理済みである（ステップ１８７０：Ｙ）と判定され、生産計画作成部１３０は、図１７のフローを終了し、つまりは図１６のフローにおけるステップ１８００の処理を終了する。 In this case, in Step 1840, the production plan creation unit 130 adopts the earliest work completion date for the earliest delivery date of the order “Order2” that is the basis of “Production plan 2”. Therefore, in step 1850, the production plan creation unit 130 registers “4/9”, which is the earliest delivery date of the above-mentioned “production plan 2”, in the item of the adjusted delivery date 1404 related to “Order2” in the adjusted order information 141. . When a series of processes relating to this “production plan 2” is completed, it is determined in step 1870 (FIG. 17) that all production plans have been processed (step 1870: Y), and the production plan creation unit 130 The flow of FIG. 17 is terminated, that is, the processing of step 1800 in the flow of FIG. 16 is terminated.
　ここで図１６のフローにおけるステップ１９００以降の説明に戻る。生産計画作成部１３０は、ステップ１９００において、最適工完日を算出する。本ステップの詳細な処理手順を図２０に示すフローチャートを用いて説明する。 Here, the description returns to step 1900 and subsequent steps in the flow of FIG. In step 1900, the production plan creation unit 130 calculates the optimal work completion date. The detailed processing procedure of this step will be described with reference to the flowchart shown in FIG.
　この場合、生産計画作成部１３０は、ステップ１９１０において、ＭＲＰ展開情報１３２（図１２）の各生産計画のレコードのうち、部品レベル「０」の品目（つまり製品）に関するレコードで、最適工完日１２０７の項目が空白のものを、工完日未調整の生産計画として検索し、更に、そのうち優先度がもっとも低いものを、生産計画情報１３１（図１１）の優先度１１０５の値に基づき、再調整対象として選択する。本実施形態に関するここまでの説明においては、まだ全ての生産計画が工完日未調整であるため、優先度がもっとも低い「３」である「生産計画２」を選択することとなる。 In this case, in step 1910, the production plan creation unit 130 is a record related to the item (ie, product) at the part level “0” among the records of each production plan of the MRP expansion information 132 (FIG. 12). If the item 1207 is blank, a production plan that has not been adjusted for completion of construction is searched, and the one with the lowest priority is searched again based on the value of the priority 1105 in the production plan information 131 (FIG. 11). Select as adjustment target. In the description so far regarding the present embodiment, since all production plans have not yet been adjusted for the completion date, “production plan 2” having the lowest priority “3” is selected.
　次に、生産計画作成部１３０は、ステップ１９２０において、上述のステップ１９１０で選択した生産計画「生産計画２」について、部品レベルが最小の品目、つまり部品レベルが「０」の品目から順に最適工完日を算出する。その詳細な手順を、図２１に示すフローに従って説明する。 Next, in step 1920, the production plan creation unit 130 optimizes the production plan “production plan 2” selected in step 1910 described above in order from the item with the lowest part level, that is, the item with the part level “0”. Calculate the completion date. The detailed procedure will be described according to the flow shown in FIG.
　生産計画作成部１３０は、ステップ１９２１において、上述のステップ１９１０で選択した工程に関する品目のうち部品レベル最小のものを選択する。本実施形態の場合、まずステップ１９１０で選択した「生産計画２」における部品レベル「０」、すなわち「製品Ａ」に対応する工程として「ショップ１」を選択することとなる。 In step 1921, the production plan creation unit 130 selects the item at the part level minimum among the items related to the process selected in step 1910 described above. In the present embodiment, first, “shop 1” is selected as the process corresponding to the part level “0” in “production plan 2” selected in step 1910, that is, “product A”.
　生産計画作成部１３０は、ステップ１９２２において、上述のステップ１９２１で選択した部品レベルが「１」以上か否か判定する。この判定の結果、ステップ１９２１で選択した部品レベルが「１」以上であった場合（ステップ１９２２：Ｙ）、生産計画作成部１３０は、処理をステップ１９２４に進める。他方、上述の判定の結果、ステップ１９２１で選択した部品レベルが「１」以上でなかった場合、つまり部品レベル「０」であった場合（ステップ１９２２：Ｎ）、生産計画作成部１３０は、処理をステップ１９２３に進める。 The production plan creation unit 130 determines in step 1922 whether or not the part level selected in step 1921 described above is “1” or higher. If the result of this determination is that the part level selected in step 1921 is “1” or higher (step 1922: Y), the production plan creation unit 130 advances the processing to step 1924. On the other hand, as a result of the above determination, if the part level selected in step 1921 is not “1” or higher, that is, if the part level is “0” (step 1922: N), the production plan creation unit 130 performs processing. To step 1923.
　生産計画作成部１３０は、ステップ１９２３において、上述のステップ１９２１で選択した工程について、その要求工完日と最早工完日を、ＭＲＰ展開情報１３２の該当値を参照して比較し、要求工完日より最早工完日の方が早いか判定する。この判定の結果、要求工完日より最早工完日が早ければ（ステップ１９２３：Ｎ）、生産計画作成部１３０は、処理をステップ１９２４に進める。他方、上述の判定の結果、要求工完日より最早工完日が遅ければ（ステップ１９２３：Ｙ）、生産計画作成部１３０は、処理をステップ１９２５に進める。本実施形態では、ＭＲＰ展開情報１３２において、「生産計画２」の部品レベル「０」のレコードにおける要求工完日は「４／７」であり、最早工完日は「４／９」である。よってこの場合、最早工完日の方が要求工完日より遅く、処理はステップ１９２５へ進むこととなる。 In step 1923, the production plan creation unit 130 compares the required work completion date and the earliest work completion date with reference to the corresponding values in the MRP expansion information 132 for the process selected in step 1921 described above, Determine whether the earliest completion date is earlier than the day. If the result of this determination is that the earliest work completion date is earlier than the requested work completion date (step 1923: N), the production plan creation unit 130 advances the process to step 1924. On the other hand, as a result of the above determination, if the earliest work completion date is later than the requested work completion date (step 1923: Y), the production plan creation unit 130 advances the process to step 1925. In the present embodiment, in the MRP development information 132, the requested work completion date in the record of the part level “0” of “production plan 2” is “4/7”, and the earliest work completion date is “4/9”. . Therefore, in this case, the earliest work completion date is later than the requested work completion date, and the process proceeds to Step 1925.
　生産計画作成部１３０は、ステップ１９２５において、最適工完日として最早工完日を採用し、ＭＲＰ展開情報１３２における、該当生産計画の部品レベル最小のレコードの最適工完日１２０７の項目に登録する。本実施形態であれば、「生産計画２」の部品レベル「０」の最適工完日１２０７の値として、「４／９」を登録することとなる。 In step 1925, the production plan creation unit 130 adopts the earliest work completion date as the optimum work completion date, and registers it in the item of the optimum work completion date 1207 of the record of the minimum part level of the corresponding production plan in the MRP expansion information 132. . In the present embodiment, “4/9” is registered as the value of the optimal work completion date 1207 of the part level “0” of the “production plan 2”.
　続いて生産計画作成部１３０は、ステップ１９２６において、ＭＲＰ展開情報１３２における該当生産計画の各工程全てについて最適工完日の処理済か判定する。この判定は、ＭＲＰ展開情報１３２の該当生産計画の各レコードにおいて、最適工完日１２０７の項目に値が登録されていれば、該当生産計画について最適工完日の処理済と判定する処理となる。この判定の結果、該当生産計画の各工程全てについて最適工完日の処理済であれば（ステップ１９２６：Ｙ）、生産計画作成部１３０は、この最適工完日算出処理を終了する。 Subsequently, in step 1926, the production plan creation unit 130 determines whether or not the optimal work completion date has been processed for all the processes of the production plan in the MRP expansion information 132. This determination is a process of determining that the optimal work completion date has been processed for the corresponding production plan if a value is registered in the item of the optimal work completion date 1207 in each record of the corresponding production plan of the MRP development information 132. . If the result of this determination is that the optimal work completion date has been processed for all the processes of the production plan (step 1926: Y), the production plan creation unit 130 ends this optimal work completion date calculation process.
　他方、上述の判定の結果、該当生産計画の各工程のうち最適工完日の処理が未だ完了していないものがある場合（ステップ１９２６：Ｎ）、生産計画作成部１３０は、処理をステップ１９２１に戻す。本実施形態の場合、上述の「生産計画２」の全ての工程について最適工完日１２０７の値が登録されておらず、処理はステップ１９２１へ戻ることとなる。 On the other hand, as a result of the above-described determination, if there is a process for which the optimal work completion date has not been completed among the processes of the corresponding production plan (step 1926: N), the production plan creation unit 130 performs the process at step 1921. Return to. In the case of the present embodiment, the value of the optimal work completion date 1207 is not registered for all the processes of the above-mentioned “production plan 2”, and the process returns to step 1921.
　再び実行することとなったステップ１９２１において、生産計画作成部１３０は、「生産計画２」の各工程のうち既に最適工完日に関する処理を終えた部品レベル「０」の工程「ショップ１」以外の工程のうち、部品レベル最小の部品レベル「１」の工程を選択する。また、続くステップ１９２２における生産計画作成部１３０は、該当工程の部品レベル「１」以上であると判定し（ステップ１９２２：Ｙ）、処理をステップ１９２４に進める。 In step 1921 to be executed again, the production plan creation unit 130, except for the process “shop 1” at the part level “0” that has already completed the process related to the optimal work completion date among the processes of “production plan 2”. Among the processes, the process of the component level “1” with the minimum component level is selected. In addition, the production plan creation unit 130 in subsequent step 1922 determines that the level is “1” or higher in the corresponding process (step 1922: Y), and the process proceeds to step 1924.
　このステップ１９２４において、生産計画作成部１３０は、最適工完日を算出する。この算出方法に関する詳細は図２２に示すフローチャートを用いて説明する。 In step 1924, the production plan creation unit 130 calculates the optimal work completion date. Details regarding this calculation method will be described with reference to the flowchart shown in FIG.
　この場合、生産計画作成部１３０は、ステップ２２１０において、該当工程に生産能力が備わっているか、すなわち工程能力情報１１４（図５）で生産能力が定義されているか判定する。この判定の結果、該当工程に生産能力が備わっている場合（ステップ２２１０：Ｙ）、生産計画作成部１３０は、処理をステップ２２２０に進める。他方、該当工程に生産能力が備わっていない場合（ステップ２２１０：Ｎ）、生産計画作成部１３０は処理をステップ２２５０に進める。本実施形態の場合、該当工程である「生産計画２」の部品レベル「１」の工程「ショップ２」について、工程能力情報１１４にて生産能力「６」が定義されており、処理はステップ２２２０へ進むこととなる。 In this case, the production plan creation unit 130 determines in step 2210 whether the corresponding process has a production capacity, that is, whether the production capacity is defined by the process capacity information 114 (FIG. 5). If the result of this determination is that the relevant process has production capacity (step 2210: Y), the production plan creation unit 130 advances the processing to step 2220. On the other hand, if the production process does not have a production capacity (step 2210: N), the production plan creation unit 130 advances the process to step 2250. In the case of the present embodiment, the production capability “6” is defined in the process capability information 114 for the process “shop 2” of the part level “1” of the “production plan 2” that is the corresponding process, and the process is step 2220. It will go to.
　生産計画作成部１３０は、ステップ２２２０において、総負荷量を算出する。総負荷量の算出方法は図１８のステップ１８２４と同一である。よって、ここでの総負荷量は「５」となる。 In step 2220, the production plan creation unit 130 calculates the total load amount. The method for calculating the total load amount is the same as step 1824 in FIG. Therefore, the total load amount here is “5”.
　また、生産計画作成部１３０は、ステップ２２３０において、負荷山積みの最遅割付日を算出する。この最遅割付日は、「最早割付日」から「上位品目（１つ小さい部品レベルの品目）の最早割付日－供給ＬＴ－製造ＬＴ＋１日」の間で、最も遅い割付可能な日付のことである。ここで、上位品目とは、ＭＲＰ展開情報１３２において、処理対象の工程の品目と比較し、部品レベルが１つ小さい品目である。本実施形態では、部品レベルが小さいものから順に処理しているため、上位品目の最早割付日は必ず求められている。なお、製造ＬＴの後に１日加算しているのは、最早割付日から最早工完日算出の際に１日減算していたのと同様に、製造ＬＴ＝１日の場合は製造開始日＝製造終了日とするためである。 Further, in step 2230, the production plan creation unit 130 calculates the latest allocation date of the load pile. This latest allocation date is the date that can be allocated the latest from the “early allocation date” to the “early allocation date of the upper item (one smaller part level item) −supply LT−production LT + 1 day”. is there. Here, the upper item is an item whose component level is one smaller than the item of the process to be processed in the MRP development information 132. In the present embodiment, since the parts are processed in descending order, the earliest allocation date of the upper item is always obtained. Note that the one day added after the manufacturing LT is the same as the one day subtracted from the earliest allocation date when calculating the earliest work completion date. This is for the production end date.
　本実施形態では、部品レベル「１」より部品レベルが１つ上、すなわち部品レベル「０」の品目に対応する工程は、ＭＲＰ展開情報１３２において、「製品Ａ」が定義されている「ショップ１」である。また、この「製品Ａ」の「ショップ１」における最早割付日は、図１３に示す負荷割付結果情報１３３において、「４／９」である。よって、最遅割付可能日は、上位品目の最早工完日－供給ＬＴ－製造ＬＴ＋１＝「４／９」－１日－１日＋１日＝「４／８」となる。生産計画作成部１３０は、この最遅割付可能日を、負荷割付結果情報１３３における最適割付日１３０６の値として登録する。 In the present embodiment, the process corresponding to the item that is one level higher than the part level “1”, that is, the item level “0” is “shop 1” in which “product A” is defined in the MRP development information 132. Is. Further, the earliest allocation date of “Product A” in “Shop 1” is “4/9” in the load allocation result information 133 shown in FIG. Therefore, the latest assignable date is the earliest completion date of the upper item—supply LT—manufacturing LT + 1 = “4/9” −1 day−1 day + 1 day = “4/8”. The production plan creation unit 130 registers the latest assignable date as the value of the optimum assignment date 1306 in the load assignment result information 133.
　また、生産計画作成部１３０は、ステップ２２４０にて、最適工完日を、最遅割付日＋製造ＬＴ－１、と算出する。ここで１日減算している理由は、最早割付日から最早工完日を算出する式で１日減算している理由と同様である。上述のステップ２２３０での例であれば、最適工完日を、最遅割付日の「４／８」＋製造ＬＴの「１日」－１日＝「４／８」と計算される。生産計画作成部１３０は、この最適工完日の算定結果を、ＭＲＰ展開情報１３２における該当レコードの最適工完日１２０７の項目に登録する。 Further, in step 2240, the production plan creation unit 130 calculates the optimal work completion date as the latest allocation date + production LT-1. Here, the reason for subtracting one day is the same as the reason for subtracting one day from the formula for calculating the earliest work completion date from the earliest allocation date. In the example in step 2230 described above, the optimum completion date is calculated as “4/8” of the latest allocation date + “1 day” of the manufacturing LT—1 day = “4/8”. The production plan creation unit 130 registers the calculation result of the optimum work completion date in the item of the optimum work completion date 1207 of the corresponding record in the MRP development information 132.
　他方、上述のステップ２２１０における判定の結果、該当工程に生産能力が備わっていない場合（ステップ２２１０：Ｎ）、ステップ２２５０において、生産計画作成部１３０は、部品要求日（該当工程における該当品目が上位品目の製造に求められる日）を最適割付日と計算して、これを最適工完日とし、ＭＲＰ展開情報１３２における該当レコードの最適工完日１２０７の項目に設定する。上述までの本実施形態の場合、このステップ２２５０の処理は、上述した「生産計画２」の「ショップ２」に関する最適工完日の算定処理後、図２１のフロー中のステップ１９２１を再実行した結果、「品目Ｃ」の「部品倉庫」工程が選択された場合にステップ１９２４に伴って実行される処理となる。 On the other hand, as a result of the determination in step 2210 described above, if the corresponding process does not have a production capacity (step 2210: N), in step 2250, the production plan creation unit 130 determines that the part request date (the corresponding item in the corresponding process is higher). The date required for manufacturing the item) is calculated as the optimal assignment date, and this is set as the optimal work completion date, which is set in the item of the optimal work completion date 1207 of the corresponding record in the MRP expansion information 132. In the case of the present embodiment up to the above, the processing of this step 2250 is the execution of step 1921 in the flow of FIG. 21 after the above-mentioned calculation process of the optimal work completion date for “shop 2” of “production plan 2”. As a result, when the “parts warehouse” process of “item C” is selected, the process is executed in accordance with step 1924.
　例えば、「生産計画２」における「部品Ｃ」は、「半製品Ｂ」を上位品目とする。また、最適工完日の算定対象である「部品Ｃ」の工程「部品倉庫」は生産能力が無い。また、「半製品Ｂ」の工程「ショップ２」の最適工完日は上述したように「４／８」と算定されている。この場合、「部品倉庫」と「ショップ２」の工程間に関する供給ＬＴは、工程間情報１１３において「１」日であり、上述の部品要求日は「４／８」の１日前の「４／７」、すなわち工程「部品倉庫」に関する最適工完日は、「４／７」となる。以上により、「生産計画２」に対する最適工完日に関する調整結果は図２８の状況のままとなった。 For example, “part C” in “production plan 2” has “semi-finished product B” as the upper item. In addition, the process “parts warehouse” of “part C”, which is a target for calculating the optimum completion date, has no production capacity. Further, the optimum completion date of the process “shop 2” of “semi-finished product B” is calculated as “4/8” as described above. In this case, the supply LT related to the process between “part warehouse” and “shop 2” is “1” day in the inter-process information 113, and the above-described part request date is “4/1” one day before “4/8”. 7 ”, that is, the optimum completion date for the process“ parts warehouse ”is“ 4/7 ”. As described above, the adjustment result related to the optimal work completion date for “production plan 2” remains as shown in FIG.
　ここで図２１のフローにおけるステップ１９２６以降の説明に戻る。ステップ１９２６において、生産計画作成部１３０は、ＭＲＰ展開情報１３２における該当生産計画の各工程全てについて最適工完日の処理済か判定する。上述までの本実施形態の場合、「生産計画２」について未処理工程は無いため（すなわち１９２６：Ｙ）、生産計画作成部１３０は、以上にて、図２２のフロー、すなわち図２１におけるステップ１９２４の処理が終了する。 Here, it returns to the description after step 1926 in the flow of FIG. In step 1926, the production plan creation unit 130 determines whether the optimal work completion date has been processed for all the processes of the production plan in the MRP development information 132. In the present embodiment up to the above, since there is no unprocessed process for “production plan 2” (ie, 1926: Y), the production plan creation unit 130 has completed the flow of FIG. 22, ie, step 1924 in FIG. This process ends.
　図２０のフローのステップ１９３０において、生産計画作成部１３０は、全ての生産計画について再調整済、すなわち最適工完日の算出済か判定する。この判定の結果、再調整済でない計画が残る場合（ステップ１９３０：Ｎ）、生産計画作成部１３０は処理をステップ１９１０に戻す。他方、判定の結果、全ての生産計画について再調整済であった場合（ステップ１９３０：Ｙ）、生産計画作成部１３０は本フローを終了する。上述までの本実施形態の場合、「生産計画１」及び「生産計画３」が再調整済でないため、処理はステップ１９１０へ戻ることとなる。 20, in step 1930 of the flow in FIG. 20, the production plan creation unit 130 determines whether all the production plans have been readjusted, that is, whether the optimal work completion date has been calculated. As a result of this determination, when a plan that has not been readjusted remains (step 1930: N), the production plan creation unit 130 returns the process to step 1910. On the other hand, as a result of the determination, when all the production plans have been readjusted (step 1930: Y), the production plan creation unit 130 ends this flow. In the case of the present embodiment described above, since “production plan 1” and “production plan 3” have not been readjusted, the processing returns to step 1910.
　本実施形態の場合、生産計画作成部１３０は、ステップ１９１０において、より優先度が低い「生産計画３」を選択する。この場合、生産計画作成部１３０は、ステップ１９２０において、部品レベルが「０」で最小の「製品Ａ」を選択し、図２１のフローを実行する。図２１のフロー中、生産計画作成部１３０は、ステップ１９２１にて上述の「製品Ａ」の工程である「ショップ１」を選択し、ステップ１９２２において、上述のステップ１９２１で選択した部品レベルが「１」以上でない、つまり部品レベル「０」であると判定し（ステップ１９２２：Ｎ）、ステップ１９２３において、工程「ショップ１」について、その要求工完日「４／７」と最早工完日「４／４」を比較する。 In the case of the present embodiment, the production plan creation unit 130 selects “Production Plan 3” having a lower priority in Step 1910. In this case, the production plan creation unit 130 selects the smallest “Product A” with the part level “0” in Step 1920 and executes the flow of FIG. In the flow of FIG. 21, the production plan creation unit 130 selects “Shop 1” as the process of “Product A” described above at Step 1921, and at Step 1922, the part level selected at Step 1921 described above is “ It is determined that it is not 1 or more, that is, the component level is “0” (step 1922: N), and in step 1923, the required work completion date “4/7” and the earliest work completion date “ 4/4 "is compared.
　上述の場合、要求工完日より最早工完日の方が早いため（ステップ１９２３：Ｎ）、生産計画作成部１３０は、処理をステップ１９２４に進める。このステップ１９２４において、生産計画作成部１３０は、図２２で例示したごとく最適工完日を算出する。この場合、生産計画作成部１３０は、ステップ２２１０において、該当工程「ショップ１」に生産能力が備わっているか工程能力情報１１４に基づき判定して、生産能力が備わっていると判定し（ステップ２２１０：Ｙ）、処理をステップ２２２０に進める。生産計画作成部１３０は、ステップ２２２０において、総負荷量を算出する。総負荷量の算出方法は図１８のステップ１８２４と同一である。よって、ここでの総負荷量は「１０」となる。 In the above case, since the earliest work completion date is earlier than the requested work completion date (step 1923: N), the production plan creation unit 130 advances the processing to step 1924. In step 1924, the production plan creation unit 130 calculates the optimal work completion date as illustrated in FIG. In this case, the production plan creation unit 130 determines in step 2210 whether the corresponding process “shop 1” has the production capacity based on the process capability information 114 and determines that the production capability is provided (step 2210: Y) The process proceeds to step 2220. In step 2220, the production plan creation unit 130 calculates the total load amount. The method for calculating the total load amount is the same as step 1824 in FIG. Therefore, the total load amount here is “10”.
　また、生産計画作成部１３０は、ステップ２２３０において、負荷山積みの最遅割付日を算出する。本実施形態では、「製品Ａ」より部品レベルが１つ上のものは存在しないため、「製品Ａ」の生産に用いる「ショップ１」が、他の生産計画に割付済みとなっている日以外の日で、要求工完日「４／７」と同じか最も近い早い日付を最適工完日と特定し、この最適工完日を、ＭＲＰ展開情報１３２における該当レコードの最適工完日１２０７の項目に登録する。図３０にて示す通り、「生産計画３」における部品レベル「０」の「製品Ａ」の最適工完日として要求工完日「４／７」を採用する。 Further, in step 2230, the production plan creation unit 130 calculates the latest allocation date of the load pile. In the present embodiment, there is no item that is one level higher than “Product A”, so “Shop 1” used for production of “Product A” is other than the day that has already been assigned to another production plan. The date that is the same as or closest to the requested work completion date “4/7” is identified as the optimum work completion date, and this optimum work completion date is set as the optimum work completion date 1207 of the corresponding record in the MRP development information 132. Register in the item. As shown in FIG. 30, the requested work completion date “4/7” is adopted as the optimum work completion date of “product A” at the part level “0” in “production plan 3”.
　この場合、「生産計画３」について「ショップ１」が最早工完日「４／４」に用いるとして割付していた生産能力は不要なる。よって該当日「４／４」における「ショップ１」の生産能力は当初の「１０」に戻る。 In this case, the production capacity assigned to “Production Plan 3” by “Shop 1” as the earliest work completion date “4/4” becomes unnecessary. Therefore, the production capacity of “Shop 1” on the corresponding day “4/4” returns to the original “10”.
　その後、図２１のフローに戻り、生産計画作成部１３０は、ステップ１９２１において、次なる部品レベル「１」の品目「半製品Ｂ」に対応する工程、「ショップ２」を選択し、続くステップ１９２２にて、部品レベルが「１」以上と判定し（ステップ１９２２：Ｙ）、ステップ１９２４において、図２２で例示したごとく最適工完日を算出する。 Then, returning to the flow of FIG. 21, the production plan creation unit 130 selects a process “shop 2” corresponding to the item “semi-finished product B” of the next part level “1” in step 1921, and continues to step 1922. Thus, it is determined that the part level is “1” or more (step 1922: Y), and in step 1924, the optimal work completion date is calculated as illustrated in FIG.
　この場合、生産計画作成部１３０は、ステップ２２１０において、該当工程「ショップ２」に生産能力が備わっていると判定し（ステップ２２１０：Ｙ）、処理をステップ２２２０に進める。生産計画作成部１３０は、ステップ２２２０において、総負荷量を算出する。総負荷量の算出方法は図１８のステップ１８２４と同一である。よって、ここでの総負荷量は「５」となる。 In this case, the production plan creation unit 130 determines in step 2210 that the process “shop 2” has a production capacity (step 2210: Y), and advances the process to step 2220. In step 2220, the production plan creation unit 130 calculates the total load amount. The method for calculating the total load amount is the same as step 1824 in FIG. Therefore, the total load amount here is “5”.
　また、生産計画作成部１３０は、ステップ２２３０において、負荷山積みの最遅割付日を算出する。本実施形態では、部品レベル「１」より部品レベルが１つ上、すなわち部品レベル「０」の品目に対応する工程は、ＭＲＰ展開情報１３２において、「製品Ａ」が定義されている「ショップ１」である。また、この「製品Ａ」の「ショップ１」における最適割付日は、図１３に示す負荷割付結果情報１３３において、「４／７」である。つまり、同じ生産計画における上位品目の工程に関して、既に最適工完日が算定されている場合、このステップ２２３０の最遅割付日の算出式には、最早工完日ではなく最適工完日を採用する。また、カレンダ情報１１６（図７）によれば、「製品Ａ」の「ショップ１」における最適割付日「４／７」の直前期にあたる「４／５」、「４／６」が休日であるため、供給ＬＴは、通常の「ショップ１」と「ショップ２」の間の「１」日に２日を加えた「３」日となる。また、製造ＬＴは品目情報１１２（図３）により「１」日である。よって、「生産計画３」における「半製品Ｂ」の工程「ショップ２」に関する最遅割付可能日は、上位品目の最適工完日－供給ＬＴ－製造ＬＴ＋１＝「４／７」－３日－１日＋１日＝「４／４」となる。 Further, in step 2230, the production plan creation unit 130 calculates the latest allocation date of the load pile. In the present embodiment, the process corresponding to the item that is one level higher than the part level “1”, that is, the item level “0” is “shop 1” in which “product A” is defined in the MRP development information 132. Is. Further, the optimum allocation date of “Product A” in “Shop 1” is “4/7” in the load allocation result information 133 shown in FIG. In other words, when the optimal work completion date has already been calculated for the process of the higher-level item in the same production plan, the optimal work completion date is adopted instead of the earliest work completion date in the formula for calculating the latest allocation date in this step 2230. To do. Further, according to the calendar information 116 (FIG. 7), “4/5” and “4/6”, which are immediately before the optimal allocation date “4/7” in “Shop 1” of “Product A”, are holidays. Therefore, the supply LT is “3” days, which is obtained by adding 2 days to the “1” between the normal “shop 1” and “shop 2”. Further, the manufacturing LT is “1” day according to the item information 112 (FIG. 3). Therefore, the latest assignable date for the process “shop 2” of the “semi-finished product B” in the “production plan 3” is the optimal completion date of the upper item—supply LT—manufacturing LT + 1 = “4/7” —3 days— 1 day + 1 day = “4/4”.
　また、生産計画作成部１３０は、ステップ２２４０にて、最適工完日を、最遅割付日の「４／４」＋製造ＬＴの「１日」－１日＝「４／４」と計算する。生産計画作成部１３０は、この最適工完日の算定結果を、ＭＲＰ展開情報１３２における該当レコードの最適工完日１２０７の項目に登録する。このように、部品レベル「１」の「半製品Ｂ」の最適工完日として「４／４」を採用した状況を図３１にて示している。 In step 2240, the production plan creation unit 130 calculates the optimum completion date as “4/4” of the latest allocation date + “1 day” of the manufacturing LT—1 day = “4/4”. . The production plan creation unit 130 registers the calculation result of the optimum work completion date in the item of the optimum work completion date 1207 of the corresponding record in the MRP development information 132. Thus, FIG. 31 shows a situation where “4/4” is adopted as the optimum completion date of “half-finished product B” at the part level “1”.
　この場合、「生産計画３」について「ショップ２」が最早工完日「４／３」に用いるとして割付していた生産能力は不要なる。よって該当日「４／３」における「ショップ２」の生産能力は当初の「６」に戻る。 In this case, the production capacity assigned to “Production Plan 3” by “Shop 2” as the earliest work completion date “4/3” becomes unnecessary. Therefore, the production capacity of “Shop 2” on the corresponding day “4/3” returns to the initial “6”.
　その後、図２１のフローに戻り、生産計画作成部１３０は、ステップ１９２１において、次なる部品レベル「２」の品目「部品Ｃ」に対応する工程、「部品倉庫」を選択し、続くステップ１９２２にて、部品レベルが「１」以上と判定し（ステップ１９２２：Ｙ）、ステップ１９２４において、図２２で例示したごとく最適工完日を算出する。 Thereafter, returning to the flow of FIG. 21, the production plan creation unit 130 selects a process corresponding to the item “part C” of the next part level “2”, “part warehouse” in step 1921, and continues to step 1922. Thus, it is determined that the component level is “1” or higher (step 1922: Y), and in step 1924, the optimal work completion date is calculated as illustrated in FIG.
　この場合、生産計画作成部１３０は、ステップ２２１０において、該当工程「部品倉庫」に生産能力が備わっていないと判定し（ステップ２２１０：Ｎ）、処理をステップ２２５０に進める。生産計画作成部１３０は、ステップ２２５０において、部品要求日（「部品倉庫」工程における品目「部品Ｃ」が上位品目「半製品Ｂ」の製造に求められる日）を、最適割付日と計算して、これを最適工完日とし、ＭＲＰ展開情報１３２における該当レコードの最適工完日１２０７の項目に設定する。「生産計画３」における「半製品Ｂ」の工程「ショップ２」の最適工完日は上述したように「４／４」と算定されている。この場合、「部品倉庫」と「ショップ２」の工程間に関する供給ＬＴは、工程間情報１１３において「１」日であり、上述の部品要求日は「４／４」の１日前の「４／３」、すなわち工程「部品倉庫」に関する最適工完日は、「４／３」となる。このように、部品レベル「２」の「部品Ｃ」の最適工完日として「４／３」を採用した状況を図３２にて示している。 In this case, the production plan creation unit 130 determines in step 2210 that the process “parts warehouse” has no production capacity (step 2210: N), and advances the process to step 2250. In step 2250, the production plan creation unit 130 calculates the part request date (the date “item C” in the “parts warehouse” process is required for the production of the upper item “semi-finished product B”) as the optimum allocation date. This is set as the optimum work completion date, and is set in the item of the optimum work completion date 1207 of the corresponding record in the MRP development information 132. As described above, the optimum completion date of the process “shop 2” of “semi-finished product B” in “production plan 3” is calculated as “4/4”. In this case, the supply LT related to the process between “parts warehouse” and “shop 2” is “1” day in the inter-process information 113, and the above-described part request date is “4/4” one day before “4/4”. 3 ”, that is, the optimum completion date for the process“ parts warehouse ”is“ 4/3 ”. Thus, FIG. 32 shows a situation in which “4/3” is adopted as the optimal work completion date of “part C” at the part level “2”.
　同様に、ステップ１９１０において「生産計画１」を採用し、図２１および図２２の各処理を上述の「生産計画２」、「生産計画３」同様に実行すると、図３３に示すように、「製品Ａ」の最適工完日を「４／４」、「半製品Ｂ」の最適工完日を「４／３」、「部品Ｃ」の最適工完日を「４／２」と算出出来る。生産計画作成部１３０は、これら各生産計画に関する最適工完日の算出結果をそれぞれ、ＭＲＰ展開情報１３２における該当レコードに登録する。上述の「生産計画１」の処理後に、図２０のフローにおけるステップ１９３０で、全生産計画の再調整済み（ステップ１９３０：Ｙ）となり、生産計画作成部１３０は、ステップ１９００（図１６）の処理を終了する。 Similarly, when “production plan 1” is adopted in step 1910 and each process of FIG. 21 and FIG. 22 is executed in the same manner as the above-mentioned “production plan 2” and “production plan 3”, as shown in FIG. The optimal work completion date of “Product A” can be calculated as “4/4”, the optimal work completion date of “Semi-Product B” can be calculated as “4/3”, and the optimal work completion date of “Part C” can be calculated as “4/2”. . The production plan creation unit 130 registers the calculation result of the optimum completion date regarding each production plan in the corresponding record in the MRP development information 132. After the above-described “production plan 1” processing, the entire production plan is readjusted (step 1930: Y) in step 1930 in the flow of FIG. 20, and the production plan creation unit 130 performs the processing in step 1900 (FIG. 16). Exit.
　ここで図１６のフローにおける説明に戻る。この場合、出力データ作成部１４０は、ステップ２０００において、調整結果情報を適宜な出力装置等に出力する。ここでの出力内容は調整後オーダ情報１４２である。また、出力データ作成部１４０は、ユーザ指示などに応じてＭＲＰ展開情報１３２から調整結果差分情報１４１を作成し、出力するとしてもよい。ＭＲＰ展開情報１３２から調整結果差分情報１４１を作成するロジックは、ＭＲＰ展開情報１３２から、例えばユーザ指定により差分抽出対象とされた、該当生産計画における最適工完日と最早工完日または要求工完日の各項目の各値を抜き出し、項目間で日付の差分を算出し、これを調整結果差分情報１４１とするといったものを採用できる。以上により、生産計画調整の全フローが終了し、最適な生産計画は求められた。 Here, the description returns to the flowchart of FIG. In this case, the output data creation unit 140 outputs the adjustment result information to an appropriate output device or the like in step 2000. The output content here is the adjusted order information 142. The output data creation unit 140 may create and output the adjustment result difference information 141 from the MRP development information 132 in accordance with a user instruction or the like. The logic for creating the adjustment result difference information 141 from the MRP development information 132 is based on the optimum work completion date and the earliest work completion date or the requested work completion in the corresponding production plan, which is a difference extraction target by, for example, user designation from the MRP development information 132 It is possible to adopt a method in which each value of each item of the day is extracted, a date difference is calculated between the items, and this is used as the adjustment result difference information 141. With the above, the entire flow of production plan adjustment was completed, and an optimal production plan was obtained.
　本実施形態における生産計画調整支援技術による効果に関して、再調整前の生産計画を示す図２９と、最適工完日に関する再調整後の生産計画を示す図３４とを用いて説明する。図２９は、図１６のフロー中におけるステップ１８００終了時点での生産計画とオーダの引当関係を示している。また、図３４は、図１６のフローにおける全ステップ終了時点での生産計画とオーダの引当関係を示している。 The effect of the production plan adjustment support technology in the present embodiment will be described with reference to FIG. 29 showing a production plan before readjustment and FIG. 34 showing a production plan after readjustment related to the optimal work completion date. FIG. 29 shows the allocation relationship between the production plan and the order at the end of step 1800 in the flow of FIG. FIG. 34 shows the allocation relationship between production plans and orders at the end of all steps in the flow of FIG.
　「Ｏｒｄｅｒ２」と「生産計画２」の関係は、図２９と図３４のどちらの結果も同一である。これは、最早の生産計画ですらオーダからの要求に間に合わないため、再調整結果が変わらなかったことに起因している。一方で、「Ｏｒｄｅｒ１」に対して「生産計画１」は、図２９では「製品Ａ」の完成（「生産計画１」の工完日「４／３」）から、「製品Ａ」の出荷（「Ｏｒｄｅｒ１」の要求納期「４／７」）まで「４」日ある。つまり、「製品Ａ」が４日間棚卸資産となることを意味する。同様に「Ｏｒｄｅｒ３」に対する「生産計画３」の調整結果より、「製品Ａ」が３日棚卸資産となる。本実施形態では、数日単位であるため、棚卸資産増大などによる影響は小さいように見えるかもしれないが、これが数週間、数ヶ月単位であったり、また期末をまたぐような場合であったりすると、影響が大きくなる。 The relationship between “Order 2” and “Production plan 2” is the same in both the results of FIG. 29 and FIG. This is due to the fact that the readjustment result did not change because even the earliest production plan was not in time for the request from the order. On the other hand, “Production plan 1” for “Order1” is “Product A” in FIG. 29 (from “Completion date“ 4/3 ”of“ Production plan 1 ”) to“ Product A ”( There is "4" days until the requested delivery date of "Order1" (4/7)). That is, “Product A” becomes an inventory for 4 days. Similarly, from the adjustment result of “Production plan 3” with respect to “Order3”, “Product A” becomes a 3-day inventory. In this embodiment, since it is a unit of several days, it may seem that the impact of an increase in inventory assets is small, but this is a case where it is a unit of several weeks or months or crosses the end of the term. , The effect will be greater.
　一方で、図３４では「Ｏｒｄｅｒ１」に対する「生産計画１」の結果より、棚卸資産期間は３日であり、再調整前と比べて１日短縮される。また、「Ｏｒｄｅｒ３」に対する「生産計画３」の結果からは、棚卸資産期間は０日、つまり再調整前と比べて３日短縮される。重要なのは、再調整後の生産計画でもオーダの要求納期は守られており、顧客要望通りに納品することが可能ということである。さらに、期をまたぐような再調整ができ、期末在庫の削減に繋がった場合などは、その分のキャッシュフローを確保することができ、納期遵守だけに限らない効果を生み出すことが可能になる。 On the other hand, in FIG. 34, from the result of “Production Plan 1” for “Order 1”, the inventory period is 3 days, which is shortened by 1 day compared with before the re-adjustment. Further, from the result of “Production plan 3” for “Order3”, the inventory period is 0 days, that is, 3 days shorter than before the readjustment. What is important is that the requested delivery date of the order is kept even in the production plan after re-adjustment, and it is possible to deliver the product as requested by the customer. In addition, when re-adjustment across periods is possible, leading to a reduction in inventory at the end of the period, it is possible to secure the corresponding cash flow, and it is possible to produce an effect that is not limited to observing deadlines.
　また、本実施例の最大の特徴は、図２０のフロー中におけるステップ１９１０に示すように、再調整を優先度が低い生産計画から実施することにある。生産計画に対して最早工完日を求めるのは、生産を平準化するためであり、リソースを有効活用し、また顧客からの要求納期に可能な限り応えるためである。従来は根本的な能力不足に悩まされるユーザが多く、生産平準化によるリソースの有効活用だけで十分であったが、昨今の激しく変動する需要への対応により、能力が過剰となる場面が生じるようになってきた。能力が過剰となると必要以上の生産計画の前詰めが発生し、棚卸資産を増やす結果に繋がっていた。　そこで本実施形態では顧客からの要求納期を満たしながらも、棚卸資産となる期間を短縮することを可能とする。また、優先度が低い生産計画、これは計画が入った時点では確定していないなどキャンセルされる可能性が高い計画などが該当し、それをなるべく要求工完日に近づけて生産計画を実施することで結果的にオーダがキャンセルされた場合に、無駄が発生する可能性を低くすることになる。一方で、優先度が高い生産計画には優先的にリソースを充て、さらに後詰め優先度を下げ、できるときに作っておくことで、顧客の要求納期を確実に満たし、特急注文の増加や不測の事態による納期遅延などの問題を起こす可能性を減らすことができる。 Further, the greatest feature of this embodiment is that the readjustment is performed from a production plan with a low priority, as shown in step 1910 in the flow of FIG. The reason why the earliest work completion date is requested for the production plan is to level the production, to effectively use the resources, and to meet the requested delivery date from the customer as much as possible. In the past, there were many users who suffered from a fundamental shortage of capacity, and it was sufficient to use resources efficiently through production leveling. However, due to the recent demands for fluctuating demand, there may be a situation where the capacity becomes excessive. It has become. Excessive capacity led to more production plans than necessary, leading to increased inventory. Therefore, in this embodiment, it is possible to shorten the period of inventory while satisfying the requested delivery date from the customer. Also, low-priority production plans, such as plans that have not been finalized at the time the plan is entered, are likely to be canceled, etc., and implement the production plan as close as possible to the required work completion date. As a result, when the order is canceled as a result, the possibility of waste is reduced. On the other hand, by preferentially allocating resources to high-priority production plans, further lowering the back-packing priority, and creating it when possible, it will ensure that the customer's requested delivery date is met, and the increase in express orders and unexpected The possibility of causing problems such as delays in delivery due to the situation can be reduced.
　以上、本発明を実施するための最良の形態などについて具体的に説明したが、本発明はこれに限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。例えば、ＢＯＭの形は本実施形態の例に一切依存しない。階層および親品目に対する子品目の数などは、様々な場合に対して変更可能である。また組立系製造業だけでなく、プロセス系製造業に対しても活用できる。プロセス系製造業における生産計画においては、設備転換などに要する時間（段取り時間）を如何に効率的に生産計画に組み込むかが重要となる。そのためには、生産負荷を平準化した生産計画を立案することは重要であり、その中でさらに棚卸資産を削減できるような生産計画を立案、調整できれば、それは企業活動に大きく貢献することが可能である。 The best mode for carrying out the present invention has been specifically described above. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention. For example, the form of the BOM does not depend on the example of this embodiment at all. The hierarchy and the number of child items for the parent item can be changed for various cases. Moreover, it can be used not only for the assembly manufacturing industry but also for the process manufacturing industry. In production planning in the process manufacturing industry, it is important to efficiently incorporate the time (setup time) required for equipment conversion into the production plan. To that end, it is important to formulate a production plan that equalizes the production load. If a production plan that can further reduce inventory assets can be formulated and adjusted, it can greatly contribute to corporate activities. It is.
　こうした本実施形態によれば、市場・顧客からの要求納期を満たすだけの、すなわち最早日程の生産計画だけでなく、棚卸資産を削減できる生産計画を立案、調整することが可能となり、無駄な在庫管理コストの削減およびキャッシュフロー増大に繋げる事が可能となる。すなわち、顧客や市場からの要求納期に可能な限り対応しつつ、該当製品の棚卸資産を効率的に削減する生産計画の立案、調整が可能となる。 According to this embodiment, it is possible to create and adjust not only the production schedule that meets the required delivery date from the market / customer, that is, the earliest schedule, but also the production plan that can reduce inventory, and wasteful inventory. It is possible to reduce the management cost and increase the cash flow. In other words, it is possible to make and adjust a production plan that efficiently reduces the inventory of the corresponding product while responding as much as possible to the requested delivery date from the customer or the market.
　本明細書の記載により、少なくとも次のことが明らかにされる。すなわち、本実施形態の生産計画調整支援装置において、前記記憶装置は、前記トランザクション情報において、複数の注文情報を該当注文の優先度と対応付けて格納するものであり、前記演算装置は、前記生産計画の生成に際し、前記複数の注文情報の各々について、最も早く納品可能となる最早工完日程に応じた生産計画を、該当注文の優先度が高い順に生成し、前記生産計画の調整処理に際し、前記複数の注文情報に応じた各生産計画のうち、納品日が該当要求納期より早いものについて、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行する処理を、該当注文の優先度が低い順に実行し、前記生産計画の調整処理を実行するものである、としてもよい。 記載 At least the following will be made clear by the description in this specification. That is, in the production plan adjustment support device of the present embodiment, the storage device stores a plurality of order information in the transaction information in association with the priority of the corresponding order, and the arithmetic device is the production device. When generating a plan, for each of the plurality of order information, generate a production plan according to the earliest work completion schedule that can be delivered earliest, in order of priority of the corresponding order, and during the adjustment process of the production plan, Of the production plans corresponding to the plurality of order information, the allocation process and the allocation process are performed again on the condition that the delivery date of the product is earlier than the required delivery date, on the condition that the delivery date for the product approaches the required delivery date. The process to be executed may be executed in the order of the priority of the corresponding order, and the adjustment process of the production plan may be executed.
　これによれば、注文間の優先度に応じ、要求納期に必ず間に合わせる必要がある注文、すなわち優先度が最も高いものについては最早での生産計画を生成し、他方、注文の確度自体が低く、要求納期に間に合わせる必要性が高くない注文、すなわち優先度が所定レベル以下のものについては、生産計画の調整によって要求納期に向けて納品日を接近させ、棚卸資産削減を図ることが可能となる。すなわち要求納期を満たすだけの、すなわち最早日程の生産計画だけでなく、棚卸資産を削減できる生産計画を立案、調整することが可能となり、無駄な在庫管理コストの削減およびキャッシュフロー増大に繋げる事が可能となる。 According to this, depending on the priority between orders, the earliest production plan is generated for orders that must be in time for the required delivery date, that is, those with the highest priority, while the accuracy of the order itself is low. For orders that do not need to be in time for the required delivery date, that is, those with a priority lower than the specified level, it is possible to reduce the inventory by bringing the delivery date closer to the required delivery date by adjusting the production plan. Become. In other words, it is possible not only to meet the required delivery date, that is, not only the production schedule for the earliest schedule but also the production plan that can reduce inventory assets, and it is possible to reduce wasteful inventory management costs and increase cash flow. It becomes possible.
　また、本実施形態の生産計画調整支援装置において、前記演算装置は、前記調整処理を行った生産計画を所定装置に出力する処理を更に実行するものであるとしてもよい。 Further, in the production plan adjustment support apparatus of the present embodiment, the arithmetic unit may further execute a process of outputting the production plan subjected to the adjustment process to a predetermined apparatus.
　これによれば、顧客の要求納期に応えつつ棚卸資産削減を図った生産計画を、生産計画担当者に提示可能となる。 According to this, it is possible to present a production plan that aims to reduce inventory assets while meeting the customer's requested delivery date to the production planner.
　また、本実施形態の生産計画調整支援装置において、前記演算装置は、前記調整処理の実行前後の生産計画間の差分情報を所定装置に出力する処理を更に実行するものであるとしてもよい。 Further, in the production plan adjustment support apparatus of the present embodiment, the arithmetic unit may further execute a process of outputting difference information between production plans before and after the execution of the adjustment process to a predetermined apparatus.
　これによれば、単純に最早工完日程に応じた生産計画と、顧客の要求納期に応えつつ棚卸資産削減を図った生産計画との差分について、生産計画担当者に提示可能となる。 According to this, it becomes possible to present to the person in charge of production planning about the difference between the production plan according to the earliest work completion schedule and the production plan for reducing inventory while responding to the requested delivery date of the customer.
　また、本実施形態の生産計画調整支援方法において、前記情報処理装置が、前記記憶装置の前記トランザクション情報において、複数の注文情報を該当注文の優先度と対応付けて格納し、前記生産計画の生成に際し、前記複数の注文情報の各々について、最も早く納品可能となる最早工完日程に応じた生産計画を、該当注文の優先度が高い順に生成し、前記生産計画の調整処理に際し、前記複数の注文情報に応じた各生産計画のうち、納品日が該当要求納期より早いものについて、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行する処理を、該当注文の優先度が低い順に実行し、前記生産計画の調整処理を実行する、としてもよい。 Further, in the production plan adjustment support method according to the present embodiment, the information processing apparatus stores a plurality of order information in association with the priority of the corresponding order in the transaction information of the storage device, and generates the production plan. At the time, for each of the plurality of order information, a production plan corresponding to the earliest work completion schedule that can be delivered earliest is generated in descending order of priority of the corresponding order. Processing for re-executing the allocation process and the allocation process on the condition that the delivery date for the product is close to the required delivery date for each production plan according to the order information whose delivery date is earlier than the required delivery date May be executed in descending order of priority of the corresponding order, and the adjustment process of the production plan may be executed.
　また、本実施形態の生産計画調整支援方法において、前記情報処理装置が、前記調整処理を行った生産計画を所定装置に出力する処理を更に実行するとしてもよい。 In the production plan adjustment support method of the present embodiment, the information processing apparatus may further execute a process of outputting the production plan subjected to the adjustment process to a predetermined apparatus.
　また、本実施形態の生産計画調整支援方法において、前記情報処理装置が、前記調整処理の実行前後の生産計画間の差分情報を所定装置に出力する処理を更に実行するとしてもよい。 Further, in the production plan adjustment support method of the present embodiment, the information processing apparatus may further execute a process of outputting difference information between production plans before and after the execution of the adjustment process to a predetermined apparatus.
１　生産計画調整支援装置
１０　補助記憶装置（記憶装置）
２０　演算装置
３０　主記憶装置（記憶装置）
１００　プログラム
１１０　マスタ情報記億部
１１１　部品表情報
１１２　品目情報
１１３　工程間情報
１１４　工程能力情報
１１５　品目負荷情報
１１６　カレンダ情報
１１７　部品表
１２０　トランザクション情報記億部
１２１　オーダ情報
１２２　発注残情報
１２３　在庫情報
１３０　生産計画作成部
１３１　生産計画情報
１３２　ＭＲＰ展開情報
１３３　負荷割付結果情報
１４０　調整結果差分情報
１４１　調整後オーダ情報 1 Production Plan Adjustment Support Device 10 Auxiliary Storage Device (Storage Device)
20 arithmetic unit 30 main storage device (storage device)
100 Program 110 Master information storage part 111 Parts table information 112 Item information 113 Inter-process information 114 Process capability information 115 Item load information 116 Calendar information 117 Parts table 120 Transaction information storage part 121 Order information 122 Order remaining information 123 Inventory information 130 Production Plan Creation Unit 131 Production Plan Information 132 MRP Deployment Information 133 Load Allocation Result Information 140 Adjustment Result Difference Information 141 Adjusted Order Information

Claims (8)

  1. 　所定製品の部品表と製造施設での生産能力の情報とを少なくとも含むマスタ情報と、前記製品に対する注文情報と前記製品を構成する部品の在庫状況および調達状況に関する情報とを少なくとも含むトランザクション情報と、を格納する記憶装置と、
    　前記注文情報が示す要求数量および要求納期を制約条件として、前記部品表および生産能力の各情報と前記部品の在庫状況および調達状況の各情報とに基づいて、注文製品を成す部品の引当処理および生産能力の割当処理を少なくとも行って生産計画を生成し、当該生産計画が示す納品日が前記要求納期より早い場合、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行し、前記生産計画の調整処理を実行する演算装置と、
    　を備えることを特徴とする生産計画調整支援装置。     Transaction information including at least master information including at least a bill of materials of a predetermined product and production capacity information at a manufacturing facility, order information for the product, and information regarding a stock status and a procurement status of parts constituting the product; A storage device for storing
    With the required quantity and the required delivery date indicated by the order information as constraints, the allocation process of parts constituting the ordered product based on the parts table and production capacity information and the inventory status and procurement status information of the parts, and A production plan is generated by performing at least a production capacity allocation process, and when the delivery date indicated by the production plan is earlier than the required delivery date, the allocation process and An arithmetic unit that executes the allocation process again and executes the adjustment process of the production plan;
    A production plan adjustment support device comprising:
  2. 　前記記憶装置は、
    　前記トランザクション情報において、複数の注文情報を該当注文の優先度と対応付けて格納するものであり、
    　前記演算装置は、
    　前記生産計画の生成に際し、前記複数の注文情報の各々について、最も早く納品可能となる最早工完日程に応じた生産計画を、該当注文の優先度が高い順に生成し、
    　前記生産計画の調整処理に際し、前記複数の注文情報に応じた各生産計画のうち、納品日が該当要求納期より早いものについて、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行する処理を、該当注文の優先度が低い順に実行し、前記生産計画の調整処理を実行する、
    　ものであることを特徴とする請求項１に記載の生産計画調整支援装置。     The storage device
    In the transaction information, a plurality of order information is stored in association with the priority of the corresponding order,
    The arithmetic unit is:
    When generating the production plan, for each of the plurality of order information, generate a production plan according to the earliest work completion schedule that can be delivered earliest, in the order of priority of the corresponding order,
    In the adjustment process of the production plan, among the production plans according to the plurality of order information, the delivery date earlier than the required delivery date, the delivery date related to the product on the condition that the delivery date approaches the required delivery date Executing the allocation process and the process of executing the allocation process again in order from the lowest priority of the corresponding order, and executing the adjustment process of the production plan;
    The production plan adjustment support apparatus according to claim 1, wherein the apparatus is a production plan adjustment support apparatus.
  3. 　前記演算装置は、
    　前記調整処理を行った生産計画を所定装置に出力する処理を更に実行するものであることを特徴とする請求項２に記載の生産計画調整支援装置。     The arithmetic unit is:
    3. The production plan adjustment support apparatus according to claim 2, further comprising a process of outputting the production plan subjected to the adjustment process to a predetermined apparatus.
  4. 　前記演算装置は、
    　前記調整処理の実行前後の生産計画間の差分情報を所定装置に出力する処理を更に実行するものであることを特徴とする請求項３に記載の生産計画調整支援装置。     The arithmetic unit is:
    The production plan adjustment support apparatus according to claim 3, further comprising a process of outputting difference information between production plans before and after execution of the adjustment process to a predetermined apparatus.
  5. 　所定製品の部品表と製造施設での生産能力の情報とを少なくとも含むマスタ情報と、前記製品に対する注文情報と前記製品を構成する部品の在庫状況および調達状況に関する情報とを少なくとも含むトランザクション情報と、を格納する記憶装置を備えた情報処理装置が、
    　前記注文情報が示す要求数量および要求納期を制約条件として、前記部品表および生産能力の各情報と前記部品の在庫状況および調達状況の各情報とに基づいて、注文製品を成す部品の引当処理および生産能力の割当処理を少なくとも行って生産計画を生成し、
    　前記生産計画が示す納品日が前記要求納期より早い場合、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行し、前記生産計画の調整処理を実行する、
    　ことを特徴とする生産計画調整支援方法。     Transaction information including at least master information including at least a bill of materials of a predetermined product and production capacity information at a manufacturing facility, order information for the product, and information regarding a stock status and a procurement status of parts constituting the product; An information processing apparatus having a storage device for storing
    With the required quantity and the required delivery date indicated by the order information as constraints, the allocation process of parts constituting the ordered product based on the parts table and production capacity information and the inventory status and procurement status information of the parts, and At least the capacity allocation process is performed to generate a production plan,
    When the delivery date indicated by the production plan is earlier than the required delivery date, the allocation process and the allocation process are performed again under the condition that the delivery date for the product approaches the required delivery date, and the adjustment process of the production plan is performed. Execute,
    A production plan adjustment support method characterized by the above.
  6. 　前記情報処理装置が、
    　前記記憶装置の前記トランザクション情報において、複数の注文情報を該当注文の優先度と対応付けて格納し、
    　前記生産計画の生成に際し、前記複数の注文情報の各々について、最も早く納品可能となる最早工完日程に応じた生産計画を、該当注文の優先度が高い順に生成し、
    　前記生産計画の調整処理に際し、前記複数の注文情報に応じた各生産計画のうち、納品日が該当要求納期より早いものについて、該当製品に関する前記納品日が前記要求納期に接近する条件にて前記引当処理および前記割当処理を再度実行する処理を、該当注文の優先度が低い順に実行し、前記生産計画の調整処理を実行する、
    　ことを特徴とする請求項５に記載の生産計画調整支援方法。     The information processing apparatus is
    In the transaction information of the storage device, a plurality of order information is stored in association with the priority of the order,
    When generating the production plan, for each of the plurality of order information, generate a production plan according to the earliest work completion schedule that can be delivered earliest, in the order of priority of the corresponding order,
    In the adjustment process of the production plan, among the production plans according to the plurality of order information, the delivery date earlier than the required delivery date, the delivery date related to the product on the condition that the delivery date approaches the required delivery date Executing the allocation process and the process of executing the allocation process again in order from the lowest priority of the corresponding order, and executing the adjustment process of the production plan;
    The production plan adjustment support method according to claim 5.
  7. 　前記情報処理装置が、
    　前記調整処理を行った生産計画を所定装置に出力する処理を更に実行することを特徴とする請求項６に記載の生産計画調整支援方法。     The information processing apparatus is
    7. The production plan adjustment support method according to claim 6, further comprising executing a process of outputting the production plan subjected to the adjustment process to a predetermined device.
  8. 　前記情報処理装置が、
    　前記調整処理の実行前後の生産計画間の差分情報を所定装置に出力する処理を更に実行することを特徴とする請求項７に記載の生産計画調整支援方法。     The information processing apparatus is
    8. The production plan adjustment support method according to claim 7, further comprising executing a process of outputting difference information between production plans before and after execution of the adjustment process to a predetermined device.
PCT/JP2014/080755 2014-11-20 2014-11-20 Production plan adjustment assisting device and production plan adjustment assisting method WO2016079843A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/080755 WO2016079843A1 (en) 2014-11-20 2014-11-20 Production plan adjustment assisting device and production plan adjustment assisting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/080755 WO2016079843A1 (en) 2014-11-20 2014-11-20 Production plan adjustment assisting device and production plan adjustment assisting method

Publications (1)

Publication Number Publication Date
WO2016079843A1 true WO2016079843A1 (en) 2016-05-26

Family

ID=56013451

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/080755 WO2016079843A1 (en) 2014-11-20 2014-11-20 Production plan adjustment assisting device and production plan adjustment assisting method

Country Status (1)

Country Link
WO (1) WO2016079843A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110446989A (en) * 2017-03-28 2019-11-12 三菱电机株式会社 Component configuration plan producing device and component configuration device
CN111353671A (en) * 2018-12-21 2020-06-30 华为技术有限公司 Supply chain management method, device and system
CN111798021A (en) * 2019-04-08 2020-10-20 株式会社日立制作所 Work man-hour prediction system and production plan formulation support system
JP7392070B1 (en) 2022-09-26 2023-12-05 三菱電機Ｉｔソリューションズ株式会社 Planning support device, planning support method, and planning support program

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08212261A (en) * 1995-02-02 1996-08-20 Toyota Motor Corp Starting plan forming device
JPH10202481A (en) * 1997-01-29 1998-08-04 Kawasaki Steel Corp Method of deciding starting time for manufacturing product
JPH10214293A (en) * 1997-01-31 1998-08-11 Konica Corp Load allocating method, deadline determining method, load allocating system, deadline determining system, production method, production system and recording medium
JP2014016805A (en) * 2012-07-09 2014-01-30 Hitachi Ltd Production plan adjustment support device, production plan adjustment support method, and production plan adjustment support program

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08212261A (en) * 1995-02-02 1996-08-20 Toyota Motor Corp Starting plan forming device
JPH10202481A (en) * 1997-01-29 1998-08-04 Kawasaki Steel Corp Method of deciding starting time for manufacturing product
JPH10214293A (en) * 1997-01-31 1998-08-11 Konica Corp Load allocating method, deadline determining method, load allocating system, deadline determining system, production method, production system and recording medium
JP2014016805A (en) * 2012-07-09 2014-01-30 Hitachi Ltd Production plan adjustment support device, production plan adjustment support method, and production plan adjustment support program

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110446989A (en) * 2017-03-28 2019-11-12 三菱电机株式会社 Component configuration plan producing device and component configuration device
CN111353671A (en) * 2018-12-21 2020-06-30 华为技术有限公司 Supply chain management method, device and system
CN111798021A (en) * 2019-04-08 2020-10-20 株式会社日立制作所 Work man-hour prediction system and production plan formulation support system
JP7392070B1 (en) 2022-09-26 2023-12-05 三菱電機Ｉｔソリューションズ株式会社 Planning support device, planning support method, and planning support program

Similar Documents

Publication Publication Date Title
US6463345B1 (en) Regenerative available to promise
US6415195B1 (en) Method and system for providing sufficient availability of manufacturing resources to meet unanticipated demand
US6393332B1 (en) Method and system for providing sufficient availability of manufacturing resources to meet unanticipated demand
JP5643502B2 (en) How to create production schedules for multiple factories
TW541483B (en) System and method for ensuring order fulfillment
Chen et al. The capacity planning problem in make-to-order enterprises
US7308416B2 (en) Single level bill of material available to promise
US20030033180A1 (en) System and method for optimizing resource plans
US20070219929A1 (en) Planning granularity in manufacturing computing systems
US20030208392A1 (en) Optimizing resource plans
JP2003091309A (en) Production management system and production management method
KR101868993B1 (en) System, method and computer program for work management to manufacture printed circuit board
WO2016079843A1 (en) Production plan adjustment assisting device and production plan adjustment assisting method
JP2004537772A (en) System and method for allocating supply of critical material components and manufacturing capacity
JP4847030B2 (en) Ordering system and ordering method
AU769097B2 (en) System and method of scheduling manufacturing resources
US8027857B2 (en) Rough-cut manufacturing operations for use in planning
JP2002373013A (en) Production scheduling method, program for computer to execute the same method and computer-readable recording medium with the program recorded thereon
US6415194B1 (en) Method and system for providing sufficient availability of manufacturing resources to meet unanticipated demand
CN113487134A (en) Material supply and demand tracking method and system, storage medium and electronic equipment
WO2023202326A1 (en) Data processing method and related apparatus
JP5499113B2 (en) Production plan adjustment support device, production plan adjustment support method, and production plan adjustment support program
JP2010055258A (en) Method for supporting improvement in supply chain efficiency
Madanhire et al. Aggregate production planning framework in a multi-product factory
JP2008015873A (en) Producible limit planning system and method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14906400

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14906400

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP