WO2010073311A1 - 部品の安全在庫量の算出方法、その実行プログラム、及びその実行装置 - Google Patents
部品の安全在庫量の算出方法、その実行プログラム、及びその実行装置 Download PDFInfo
- Publication number
- WO2010073311A1 WO2010073311A1 PCT/JP2008/073305 JP2008073305W WO2010073311A1 WO 2010073311 A1 WO2010073311 A1 WO 2010073311A1 JP 2008073305 W JP2008073305 W JP 2008073305W WO 2010073311 A1 WO2010073311 A1 WO 2010073311A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- products
- standard deviation
- common parts
- safety stock
- common
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 32
- 238000004364 calculation method Methods 0.000 claims description 74
- 230000010354 integration Effects 0.000 claims description 27
- 238000003860 storage Methods 0.000 claims description 24
- 238000004886 process control Methods 0.000 claims description 7
- 239000000284 extract Substances 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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] or computer integrated manufacturing [CIM]
- G05B19/41865—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] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
-
- 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
- G06Q10/00—Administration; Management
- G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
- G06Q10/087—Inventory or stock management, e.g. order filling, procurement or balancing against orders
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31386—Determine size of batch of material for each process to meet mfl rate
-
- 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]
Definitions
- the present invention relates to a technique for calculating a low-cost inventory of parts commonly used in a plurality of products.
- Patent Document 1 uses a computer system to calculate a required standard deviation for a time change for each part from a demand standard deviation for the time change for each product and the component configuration information of the product. And a method for calculating a safety stock quantity using a safety factor and the like.
- Patent Document 1 The technology described in the above-mentioned Patent Document 1 can certainly determine the safety stock amount of parts to some extent. However, manufacturers who manufacture products are always demanded to reduce the excess and deficiency of parts as much as possible by requesting more accurate safety stock of parts.
- the present invention has an object to provide a technique for more accurately obtaining the safety stock amount of parts in order to meet the above-mentioned demand.
- the invention for achieving the above object is as follows.
- the following (1) to (5) are performed in order to calculate the safety stock quantity of common parts used in common by multiple products.
- (1) The demand standard deviation with respect to the time change for each of the plurality of products, the number of components for each of the plurality of products, the number of the component parts, and the demand record associated with the time change for each of the plurality of products are received.
- (2) For each of the plurality of products, the required standard deviation of the common parts in the product is obtained using the number of common parts in the product and the demand standard deviation of the product.
- (3-1) Select any two of the plurality of products.
- (3-3) From the actual demand for the two products and the number of common parts for each of the two products, the required amount of the common parts is obtained for each of the two products, and the A correlation coefficient indicating a mutual relationship between the required amounts of the common parts between the two products is obtained from the required amount results of the common parts.
- (3-3) Using the standard deviation of the required amount for the common part for each of the two products and the correlation coefficient of the required amount of the common part for the two products, the required value for each of the two products. Obtain the primary integration required standard deviation that summarizes the quantity standard deviation.
- the two products for which the primary integration necessary amount standard deviation is obtained are assumed to be one virtual product, and the selection step, the coefficient calculation step until the two products cannot be selected by the selection means.
- the primary integrated deviation calculation step is repeatedly executed, and the primary integrated required amount standard deviation obtained in the last primary integrated deviation calculating step is set as the integrated required amount standard deviation.
- the safety stock quantity of common parts used in common by multiple correlated products is relatively small because there is a negative correlation between product demands, so the parts usage will cancel each other. If there is a positive correlation, the amount of parts used is large. For this reason, when the correlation between demands of a plurality of products is not taken into account, the risk of excessive or insufficient parts increases.
- the safety stock quantity of the common parts used among the products is obtained in consideration of the demand relation of a plurality of products, and therefore the accurate safety stock quantity of the common parts is obtained. As a result, excess and deficiency of common parts can be minimized.
- Explanatory drawing which shows the data structure of the components demand standard deviation table as one Embodiment of this invention.
- Explanatory drawing which shows the data structure of the demand performance information table as one Embodiment of this invention.
- movement of the calculation apparatus as one Embodiment of this invention.
- the flowchart which shows the detail of the calculation process (S13) of the required amount standard deviation in FIG.
- the component safety stock amount calculation apparatus 100 is a computer that stores a CPU 110 that executes various arithmetic processes, a RAM 120 that serves as a work area of the CPU 110, various data, and the like.
- ROM 130 an auxiliary storage device 140 such as a solid state drive (SSD) device using a hard disk drive device or flash memory, and a storage for executing data storage / reproduction with respect to a portable storage medium D such as a CD or a DVD
- a playback device 150, an input device 160 such as a keyboard and a mouse, and a display device 170 such as a CRT display, an LC (Liquid Crystal) display, and an organic EL (Electro-Luminescence) display are provided.
- auxiliary storage device 140 In the auxiliary storage device 140, a product demand standard deviation table 141 that stores a demand standard deviation with respect to a time change in the past for each product, a part configuration information table 142 that stores part configuration information for each product, A demand result information table 143 storing past demand result information for each product, and safety stock source information (a part inventory safety factor, a part procurement lead time, a parameter necessary for obtaining a part safety stock quantity, A safety stock source information table 144 storing a part ordering cycle) and a safety stock table 145 storing a safety stock quantity of parts are provided.
- the auxiliary storage device 140 further stores a safety stock calculation program 149 for obtaining a safety stock quantity of parts.
- the safety stock calculation program 149 may be stored in the auxiliary storage device 140 by causing the storage / reproduction device 150 to reproduce the portable storage medium D in which the safety stock calculation program 149 is stored.
- the safety stock calculation program 149 may be acquired from the outside by a communication device and stored in the auxiliary storage device 140.
- the product demand standard deviation table 141, the component configuration information table 142, the demand performance information table 143, and the safety stock source information table 144 may be provided in the RAM 120.
- the CPU 110 functionally integrates the required amount deviation calculation unit 111 for obtaining the required amount standard deviation of the parts by using the demand standard deviation of the product for each product and the required amount standard deviation for each product related to the common parts.
- the integrated necessary amount deviation calculating unit 112 includes a correlation coefficient calculating unit 113 for obtaining a correlation coefficient indicating a correlation between the common component required amounts between the two products, and each required amount of the common component in the two products.
- a primary integration required amount deviation calculating unit 114 that summarizes standard deviations, and a processing control unit 115 that controls processing in the correlation coefficient calculating unit 113 and the primary integration required amount deviation calculating unit 114 are provided.
- Each of the functional units 111 to 117 described above functions when the CPU 110 reads the safety stock calculation program 149 from the auxiliary storage device 140, loads it into the RAM 120, and executes the program 149.
- the input / output control unit 117 receives, from the input device 160, a demand standard deviation for each product, part configuration information for each product, demand record information for each product, and safety stock information for each part.
- the table 141, the part configuration information table 142, the demand record information table 143, and the safety stock source information table 144 are stored (S11).
- an input device 160 such as a keyboard is illustrated as an input means for each information, but this input means may be a storage / reproduction device 150 or a communication device (not shown).
- the input / output control unit 117 may accept various types of information or control various types of information received by the communication device.
- the unit 117 may accept it.
- the product demand standard deviation table 141 has a product ID area in which the product ID is stored, and a demand standard deviation area in which the demand standard deviation with respect to the time change is stored.
- the input / output control unit 117 receives the product ID and the demand standard deviation of this product for each product from the input device 160 and stores them in the corresponding area of the product demand standard deviation table 141.
- the component configuration information table 142 has a product ID area in which the product ID is stored, a part ID area in which the part ID is stored, and a number area in which the number of parts is stored. Yes.
- the input / output control unit 117 receives, for each product, the product ID, the part IDs of all the parts constituting the product, and the number of each part from the input device 160, and stores these in the corresponding area of the part configuration information table 142. Store.
- the products handled are three types of products with IDs “A”, “B”, and “C”.
- the parts constituting any of the products are four kinds of parts with IDs “a”, “b”, “c”, and “x”, and the common parts common to these products are one kind of parts with the ID “x”.
- the safety stock quantity of the common part “x” is determined.
- the demand record information table 143 has an ID area in which the product ID is stored and a demand quantity area in which the product demand in each past period is stored.
- the input / output control unit 117 receives the product ID and the demand amount of each time for this product, and stores them in the corresponding area of the demand record information table 143.
- the safety stock source information table 144 includes a part ID area in which a part ID is stored, a safety coefficient area in which a part inventory safety coefficient is stored, and a procurement lead time in which a part lead time is stored. It has a lead time area and an order cycle area in which a part order cycle is stored.
- the input / output control unit 117 receives, for each part, the part ID, the inventory safety coefficient of this part, the procurement lead time of this part, and the ordering cycle of this part from the input device 160, and these are received in the safety stock source information table 144. Store in the corresponding area.
- the inventory safety coefficient here is a ⁇ ⁇ (standard deviation) a indicating the variable z in the normal distribution of the inventory quantity.
- the stock safety coefficient for setting the stock out-of-stock rate to 5% is 1.65 because the variable z at which the stock rate is 95% is 1.65 ⁇ ⁇ .
- the part procurement lead time is the time (days) from when a part is ordered until it is delivered
- the part ordering cycle is the time (days) from when a part is ordered until it is ordered again. That is.
- the required amount deviation calculation unit 111 extracts the common part “x” common to all products “A”, “B”, and “C” from the part configuration information table 142 (FIG. 3) (S12).
- the required amount deviation calculation unit 111 calculates the required amount standard deviation for the common part “x” for each product (S13).
- the necessary amount deviation calculation unit 111 first determines, from the component configuration information table 142 (FIG. 3), the product IDs “A”, “B”, “C” that use the common component “x”, and the common component “x” of this product.
- the numbers “1”, “2”, and “1” are extracted, and these data 121 are expanded on the RAM 120 as shown in FIG. 11 (S131).
- the necessary amount deviation calculation unit 111 extracts the demand standard deviations “3”, “5”, and “2” for each product “A”, “B”, and “C” from the product demand standard deviation table (FIG. 2).
- the demand standard deviations “3”, “5”, and “2” 122 are expanded on the RAM 120 in association with the product ID previously expanded on the RAM 120 (S132).
- the integrated required amount deviation calculating unit 112 uses the common part “x” of all products “A”, “B”, and “C” that use the common part “x”.
- the required amount standard deviations related to the common parts “x” of all products are calculated, that is, the integrated required amount standard deviation is calculated (S14).
- the process control unit 115 of the integrated necessary amount deviation calculation unit 112 first selects any two products as one group from all products “A”, “B”, and “C” that use the common component “x”. In other words, any two of the combination of common part “x” -product “A”, the combination of common part “x” -product “B”, and the combination of common part “x” -product “C” A set is selected as one group (S141).
- the process control unit 115 selects two sets of a combination of the common part “x” and the product “A” and a combination of the common part “x” and the product “B” as one group.
- the correlation coefficient calculation unit 113 of the integrated necessary amount deviation calculation unit 112 calculates a correlation coefficient indicating the correlation between the necessary amounts of common parts between two products (S142).
- the correlation coefficient calculation unit 113 of the integrated necessary amount deviation calculation unit 112 first extracts the number of common parts “x” for each product in the group from the part configuration information table 142 (FIG. 3), and shows the result shown in FIG. As described above, the data 125 of the product IDs “A” and “B”, the component IDs “x” and “x”, and the numbers “1” and “2” are expanded on the RAM 120 (S1421).
- the correlation coefficient calculation unit 113 extracts the actual demand for each product in the group, and associates the actual demand 126 with the product ID previously developed on the RAM 120 as shown in FIG.
- the data is expanded on the RAM 120 (S1422).
- the correlation coefficient calculation unit 113 multiplies the actual demand for the product by the number of common parts “x”, and calculates the required quantity results for the common parts “x” in this product. As shown in FIG. 11, this required amount record 127 is expanded on the RAM 120 in association with the product ID previously expanded on the RAM 120 (S1423).
- the correlation coefficient calculation unit 113 uses the necessary amount results for the common part “x” for each product in the group, and calculates the mutual relationship between the products “A” and “B” in the group by the following (Equation 1).
- the correlation coefficient K related to the common part “x” is calculated, and this correlation coefficient K128 is developed on the RAM 120 as shown in FIG. 11 (S1424).
- the correlation coefficient K regarding the common component “x” between the products “A” and “B” in the group is “0.355”.
- x i Actual required amount for each period in one product of two products x a : Arithmetic average of required actual results for each period in one product y i : Necessary amount for each period in the other product Actual y a : Arithmetic mean of required amount actual of each time in the other product
- S142 correlation coefficient calculation process
- the primary integrated necessary amount deviation calculating unit 114 of the integrated necessary amount deviation calculating unit 112 performs the correlation coefficient K in the group and the common component “for each product in the group”.
- the required standard deviations ⁇ x and ⁇ y for “x” the required standard deviation of the common part “x” in which two sets in the group are grouped by the following (Equation 2), that is, the primary integrated required standard deviation ⁇ S is calculated and, as shown in FIG. 11, this primary integration necessary amount standard deviation ⁇ S 129 is developed on the RAM 120 (S143).
- the primary integration required standard deviation ⁇ S of the common part “x” including the two sets in the group is “11.4” here.
- the processing control unit 115 of the integrated necessary amount deviation calculating unit 112 virtually sets two sets in the group as one set, in other words, two products “A” and “B” in the group are virtually set.
- the process control unit 115 determines whether or not there is one common component “x” -product combination (S145). If it is determined that there is only one combination, it is determined that the integration of the required standard deviation of the common part “x” for each product has been completed, and this integrated required standard deviation calculation process (S14) is terminated. If it is determined that the number of combinations is not one, the process returns to step 141. At this stage, there are two combinations using the common part “x”: a combination of the common part “x” -product “C” and a combination of the common part “x” -product “AB”. Therefore, the process returns to step 141.
- the process control unit 115 selects any two sets as one group from the remaining common part “x” -product combinations.
- the remaining common part “x” -product combination is the combination of the common part “x” -product “C” and the combination of the common part “x” -product “AB” as described above. Therefore, these two combinations are selected as one group.
- the correlation coefficient calculation unit 113 of the integrated necessary amount deviation calculation unit 112 has a correlation coefficient indicating the correlation between the required amounts of the common component “x” between the two products “C” and “AB”. Is calculated (S142).
- the correlation coefficient calculation unit 113 of the integrated necessary amount deviation calculation unit 112 first calculates the number of common parts “x” for each product in the group in the component configuration information table 142.
- FIG. 3 As shown in FIG. 11, product ID “C” “AB”, part ID “x” “x”, and number “1” “1 (product“ A ”), 2 ( The data 125a of the product “B”) ”is expanded on the RAM 120 (S1421).
- the correlation coefficient calculation unit 113 extracts the demand record for each product in the group, and associates the demand record 126a with the product ID previously developed on the RAM 120 as shown in FIG.
- the data is expanded on the RAM 120 (S1422).
- the correlation coefficient calculation unit 113 multiplies the actual demand for the product by the number of common parts “x”, and calculates the required quantity results for the common parts “x” in this product. As shown in FIG. 11, this required amount record 127a is associated with the product ID previously developed on the RAM 120 and developed on the RAM 120 (S1423).
- the correlation coefficient calculation unit 113 uses the necessary amount results for the common part “x” for each product in the group, and the products “C” and “AB” in the group according to (Equation 1) described above.
- the correlation coefficient K regarding the common component “x” between them is calculated, and this correlation coefficient K128a is developed on the RAM 120 as shown in FIG. 11 (S1424).
- the correlation coefficient K regarding the common part “x” between the products “C” and “AB” in the group is “1.000”.
- the primary integrated necessary amount deviation calculating unit 114 of the integrated necessary amount deviation calculating unit 112 performs the correlation coefficient K in the group and each product in the group.
- the primary integrated required standard deviation ⁇ S of the common part “x” which is a combination of the two sets in the group, is obtained by the above (Equation 2).
- the primary integration necessary amount standard deviation ⁇ S 129a is developed on the RAM 120 (S143).
- the primary integration required standard deviation ⁇ S of the common part “x” that is a combination of the two sets in the group is “13.4” here.
- the processing control unit 115 of the integrated necessary amount deviation calculating unit 112 virtually sets two sets in the group as one set, that is, here, two products “C” and “AB” in the group. ”Is assumed to be virtually one product“ ABC ”(S144).
- the process control unit 115 determines whether or not there is one common component “x” -product combination (S145). At this stage, there is only one combination of the common part “x” and the product “ABC” as a combination using the common part “x”, so the primary integration requirement standard finally obtained
- the deviation “13.4” is set as a necessary amount standard deviation for the common part “x” of all products, that is, an integrated necessary amount standard deviation ⁇ I , and the integrated necessary amount standard deviation calculation process (S14) ends.
- the safety stock quantity calculation unit 116 extracts the stock safety coefficient k S of the common part “x”, its procurement lead time T, and its ordering cycle S from the safety stock source information table 144 (FIG. 5) (S151). .
- the safety stock quantity calculation unit 116 the integrated required quantity standard deviation ⁇ I calculated in step 14, the inventory safety coefficient k S of the common part “x” extracted in step 151, the procurement lead time T, and the order cycle S Is used to calculate the safety stock quantity S S according to the following (Equation 3) (S152).
- the safety stock quantity S S is “89” here.
- safety stock amount calculation unit 116 the safety stock quantity S S calculated in association with the ID "x" of the common parts is stored in the safety stock quantity table 145 (S153).
- the required quantity deviation calculation unit 111 determines whether or not unprocessed common parts remain (S16). If an unprocessed common part remains, the process returns to step 12 to extract one of the remaining common parts. If there is no unprocessed common part remaining, the input / output control unit 117 extracts the safety stock quantity for each common part ID from the safety stock quantity table 145 and, as shown in FIG. The safety stock quantity “89” for each common part ID is displayed.
- the display device 170 is exemplified as the safety stock amount output means, but this output means may be a storage / reproduction device 150, a communication device not shown, or a printer not shown. . In other words, the safety stock quantity may be stored in the portable storage medium D by the storage / reproduction device 150, the safety stock quantity may be printed by a printer, or the safety stock quantity may be transmitted to the outside by a communication device. Good.
- the safety stock quantity of common parts used in common by multiple correlated products is relatively small because there is a negative correlation between product demands, so the parts usage will cancel each other. If there is a positive correlation, the amount of parts used is large. For this reason, when the correlation between demands of a plurality of products is not taken into account, the risk of excessive or insufficient parts increases.
- the safety stock amount of the common parts used among the products is obtained in consideration of the demand relation of a plurality of products, so the accurate safety stock amount of the common parts is obtained. As a result, excess and deficiency of common parts can be minimized. For this reason, it is possible to reduce the work burden on the manufacturer handling the product, such as adjustment of the safety stock amount.
- the standard deviation for each product stored in the demand standard deviation storage unit is not data for each period, but actually, the safety stock quantity is calculated as data for each period. Also good.
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Economics (AREA)
- General Physics & Mathematics (AREA)
- Human Resources & Organizations (AREA)
- Entrepreneurship & Innovation (AREA)
- Marketing (AREA)
- Operations Research (AREA)
- Accounting & Taxation (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Development Economics (AREA)
- General Business, Economics & Management (AREA)
- Finance (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- General Factory Administration (AREA)
Abstract
Description
複数の製品で共通に使われる共通部品の安全在庫量を算出するため、以下の(1)~(5)を実行することを特徴とする。
(1)前記複数の製品毎の時間変化に対する需要標準偏差と、該複数の製品毎の構成部品及び該構成部品の員数と、該複数の製品毎の時間変化に伴う需要実績とを受け付ける。
(2)前記複数の製品毎に、該製品における前記共通部品の員数と該製品の前記需要標準偏差とを用いて、該製品における該共通部品の必要量標準偏差を求める。
(3)複数の製品毎の需要実績と該複数の製品毎の前記共通部品の員数とから、該複数の製品毎に該共通部品の必要実績を求め、該複数の製品毎の該共通部品の必要量実績から、該複数の製品相互間での該共通部品の必要量の相互関係を示す相関係数を求め、該相関係数と該複数の製品毎の該共通部品に関する各必要量標準偏差とを用いて、該各必要量標準偏差をまとめた、該複数の製品全てでの該共通部品に関する必要量標準偏差を、統合必要量標準偏差として求める。
(4)前記統合必要量標準偏差を用いて、前記共通部品の安全在庫量を求め。
(5)前記共通部品の安全在庫量を出力する。
(3-1)前記複数の製品のうちのいずれか二つの製品を選択する。
(3-2)前記二つ製品に関する需要実績と該二つ製品毎の前記共通部品の員数とから、該二つの製品毎に該共通部品の必要量実績を求め、該二つの製品毎の該共通部品の必要量実績から、該二つの製品相互間での該共通部品の必要量の相互関係を示す相関係数を求める。
(3-3)前記二つの製品毎の前記共通部品に関する前記必要量標準偏差と、該二つの製品における該共通部品の必要量の相関係数とを用いて、該二つの製品毎の該必要量標準偏差をまとめた一次統合必要量標準偏差を求める。
(3-4)前記一次統合必要量標準偏差が求められた前記二つの製品を仮想的な一つの製品とし、前記選択手段で二つの製品を選択できなくなるまで、前記選択ステップ、前記係数算出ステップ、前記一次統合偏差算出ステップを繰り返し実行させ、最後の該一次統合偏差算出ステップで求められた前記一次統合必要量標準偏差を前記統合必要量標準偏差とする。
xi:二つの製品のうちの一方の製品における各時期毎の必要量実績
xa:一方の製品における各時期の必要量実績の相加平均
yi:他方の製品における各時期毎の必要量実績
ya:他方の製品における各時期の必要量実績の相加平均
以上で、相関係数の算出処理(S142)が終了する。
Claims (11)
- 複数の製品で共通に使われる共通部品の安全在庫量の算出装置において、
前記複数の製品毎の時間変化に対する需要標準偏差と、該複数の製品毎の構成部品及び該構成部品の員数と、該複数の製品毎の時間変化に伴う需要実績とを受け付ける受付手段と、
前記受付手段で受け付けられた前記複数の製品毎の時間変化に対する需要標準偏差と、該複数の製品毎の構成部品及び該構成部品の員数と、該複数の製品毎の時間変化に伴う需要実績とを記憶する記憶手段と、
前記複数の製品毎に、該製品における前記共通部品の員数と該製品の前記需要標準偏差とを用いて、該製品における該共通部品の必要量標準偏差を求める偏差算出手段と、
複数の製品毎の需要実績と該複数の製品毎の前記共通部品の員数とから、該複数の製品毎に該共通部品の必要実績を求め、該複数の製品毎の該共通部品の必要量実績から、該複数の製品相互間での該共通部品の必要量の相互関係を示す相関係数を求め、該相関係数と該複数の製品毎の該共通部品に関する各必要量標準偏差とを用いて、該各必要量標準偏差をまとめた、該複数の製品全てでの該共通部品に関する必要量標準偏差を、統合必要量標準偏差として求める統合偏差算出手段と、
前記統合必要量標準偏差を用いて、前記共通部品の安全在庫量を求め、該安全在庫量を前記記憶手段に格納する安全在庫量算出手段と、
前記共通部品の安全在庫量を出力する出力手段と、
を備えていることを特徴とする安全在庫量の算出装置。 - 請求項1に記載の安全在庫量の算出装置において、
前記統合偏差算出手段は、
前記複数の製品のうちのいずれか二つの製品を選択する選択手段と、
前記二つ製品に関する需要実績と該二つ製品毎の前記共通部品の員数とから、該二つの製品毎に該共通部品の前記必要量実績を求め、該二つの製品毎の該共通部品の該必要量実績から、該二つの製品相互間での該共通部品の必要量の相互関係を示す前記相関係数を求める係数算出手段と、
前記二つの製品毎の前記共通部品に関する前記必要量標準偏差と、該二つの製品における該共通部品の必要量の前記相関係数とを用いて、該二つの製品毎の該必要量標準偏差をまとめた一次統合必要量標準偏差を求める一次統合偏差算出手段と、
前記一次統合必要量標準偏差が求められた前記二つの製品を仮想的な一つの製品とし、前記選択手段で二つの製品を選択できなくなるまで、前記選択手段、前記係数算出手段、前記一次統合偏差算出手段での処理を繰り返し実行させ、最後に該一次統合偏差算出手段で求められた前記一次統合必要量標準偏差を前記統合必要量標準偏差とする処理制御手段と、
を有することを特徴とする安全在庫量の算出装置。 - 請求項2に記載の安全在庫量の算出装置において、
前記受付手段は、前記共通部品の在庫安全係数、該共通部品の調達リードタイム、該共通部品の発注サイクルを受け付けて、前記記憶手段に記憶し、
前記安全在庫量算出手段は、前記統合必要量標準偏差と、前記共通部品の在庫安全係数と、該共通部品の調達リードタイムと、該共通部品の発注サイクルとを用いて、該共通部品の前記安全在庫量を求める、
ことを特徴とする安全在庫量の算出装置。 - 複数の製品で共通に使われる共通部品の安全在庫量の算出プログラムにおいて、
コンピュータの入力手段により、前記複数の製品毎の時間変化に対する需要標準偏差と、該複数の製品毎の構成部品及び該構成部品の員数と、該複数の製品毎の時間変化に伴う需要実績とを受け付けて、該コンピュータの記憶手段に格納する受付ステップと、
前記複数の製品毎に、該製品における前記共通部品の員数と該製品の前記需要標準偏差とを用いて、該製品における該共通部品の必要量標準偏差を求める偏差算出ステップと、
複数の製品毎の需要実績と該複数の製品毎の前記共通部品の員数とから、該複数の製品毎に該共通部品の必要実績を求め、該複数の製品毎の該共通部品の必要量実績から、該複数の製品相互間での該共通部品の必要量の相互関係を示す相関係数を求め、該相関係数と該複数の製品毎の該共通部品に関する各必要量標準偏差とを用いて、該各必要量標準偏差をまとめた、該複数の製品全てでの該共通部品に関する必要量標準偏差を、統合必要量標準偏差として求める統合偏差算出ステップと、
前記統合必要量標準偏差を用いて、前記共通部品の安全在庫量を求め、該安全在庫量を前記記憶手段に格納する安全在庫量算出ステップと、
前記コンピュータの出力手段に、前記共通部品の安全在庫量を出力させる出力ステップと、
を前記コンピュータに実行させることを特徴とする安全在庫量の算出プログラム。 - 請求項7に記載の安全在庫量の算出プログラムにおいて、
前記統合偏差算出ステップでは、
前記複数の製品のうちのいずれか二つの製品を選択する選択ステップと、
前記二つ製品に関する需要実績と該二つ製品毎の前記共通部品の員数とから、該二つの製品毎に該共通部品の前記必要量実績を求め、該二つの製品毎の該共通部品の該必要量実績から、該二つの製品相互間での該共通部品の必要量の相互関係を示す前記相関係数を求める係数算出ステップと、
前記二つの製品毎の前記共通部品に関する前記必要量標準偏差と、該二つの製品における該共通部品の必要量の前記相関係数とを用いて、該二つの製品毎の該必要量標準偏差をまとめた一次統合必要量標準偏差を求める一次統合偏差算出ステップと、
前記一次統合必要量標準偏差が求められた前記二つの製品を仮想的な一つの製品とし、前記選択手段で二つの製品を選択できなくなるまで、前記選択ステップ、前記係数算出ステップ、前記一次統合偏差算出ステップを繰り返し実行させ、最後の該一次統合偏差算出ステップで求められた前記一次統合必要量標準偏差を前記統合必要量標準偏差とする処理制御ステップと、
を前記コンピュータに実行させることを特徴とする安全在庫量の算出プログラム。 - 請求項7及び8のいずれか一項に記載の安全在庫量の算出プログラムにおいて、
前記受付ステップでは、前記部品の在庫安全係数、該部品の調達リードタイム、該部品の発注サイクルを受け付け、
前記安全在庫量算出ステップでは、前記統合必要量標準偏差と、前記部品の在庫安全係数と、該部品の調達リードタイムと、該部品の発注サイクルとを用いて、該部品の前記安全在庫量を求める、
ことを特徴とする安全在庫量の算出プログラム。 - 複数の製品で共通に使われる共通部品の安全在庫量の算出方法において、
コンピュータの入力手段により、前記複数の製品毎の時間変化に対する需要標準偏差と、該複数の製品毎の構成部品及び該構成部品の員数と、該複数の製品毎の時間変化に伴う需要実績とを受け付けて、該コンピュータの記憶手段に格納する受付ステップと、
前記複数の製品毎に、該製品における前記共通部品の員数と該製品の前記需要標準偏差とを用いて、該製品における該共通部品の必要量標準偏差を求める偏差算出ステップと、
複数の製品毎の需要実績と該複数の製品毎の前記共通部品の員数とから、該複数の製品毎に該共通部品の必要実績を求め、該複数の製品毎の該共通部品の必要量実績から、該複数の製品相互間での該共通部品の必要量の相互関係を示す相関係数を求め、該相関係数と該複数の製品毎の該共通部品に関する各必要量標準偏差とを用いて、該各必要量標準偏差をまとめた、該複数の製品全てでの該共通部品に関する必要量標準偏差を、統合必要量標準偏差として求める統合偏差算出ステップと、
前記統合必要量標準偏差を用いて、前記共通部品の安全在庫量を求め、該安全在庫量を前記記憶手段に格納する安全在庫量算出ステップと、
前記コンピュータの出力手段に、前記共通部品の安全在庫量を出力させる出力ステップと、
を前記コンピュータが実行することを特徴とする安全在庫量の算出方法。 - 請求項10に記載の安全在庫量の算出方法において、
前記統合偏差算出ステップでは、
前記複数の製品のうちのいずれか二つの製品を選択する選択ステップと、
前記二つ製品に関する需要実績と該二つ製品毎の前記共通部品の員数とから、該二つの製品毎に該共通部品の前記必要量実績を求め、該二つの製品毎の該共通部品の該必要量実績から、該二つの製品相互間での該共通部品の必要量の相互関係を示す前記相関係数を求める係数算出ステップと、
前記二つの製品毎の前記共通部品に関する前記必要量標準偏差と、該二つの製品における該共通部品の必要量の前記相関係数とを用いて、該二つの製品毎の該必要量標準偏差をまとめた一次統合必要量標準偏差を求める一次統合偏差算出ステップと、
前記一次統合必要量標準偏差が求められた前記二つの製品を仮想的な一つの製品とし、前記選択手段で二つの製品を選択できなくなるまで、前記選択ステップ、前記係数算出ステップ、前記一次統合偏差算出ステップを繰り返し実行させ、最後の該一次統合偏差算出ステップで求められた前記一次統合必要量標準偏差を前記統合必要量標準偏差とする処理制御ステップと、
を前記コンピュータが実行することを特徴とする安全在庫量の算出方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010543653A JP5090537B2 (ja) | 2008-12-22 | 2008-12-22 | 部品の安全在庫量の算出方法、その実行プログラム、及びその実行装置 |
US13/141,355 US20120089489A1 (en) | 2008-12-22 | 2008-12-22 | Component safety inventory amount calculating method, program for executing same, and device for executing same |
PCT/JP2008/073305 WO2010073311A1 (ja) | 2008-12-22 | 2008-12-22 | 部品の安全在庫量の算出方法、その実行プログラム、及びその実行装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/073305 WO2010073311A1 (ja) | 2008-12-22 | 2008-12-22 | 部品の安全在庫量の算出方法、その実行プログラム、及びその実行装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010073311A1 true WO2010073311A1 (ja) | 2010-07-01 |
Family
ID=42286981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/073305 WO2010073311A1 (ja) | 2008-12-22 | 2008-12-22 | 部品の安全在庫量の算出方法、その実行プログラム、及びその実行装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120089489A1 (ja) |
JP (1) | JP5090537B2 (ja) |
WO (1) | WO2010073311A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9779588B2 (en) * | 2013-12-19 | 2017-10-03 | Ncr Corporation | Media replenishment management |
CN104134132B (zh) * | 2014-06-26 | 2017-04-05 | 东方通信股份有限公司 | 安全库存控制系统的控制方法 |
US20180315009A1 (en) * | 2015-11-10 | 2018-11-01 | Hitachi, Ltd. | Inventory Analysis Device and Inventory Analysis Method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004118429A (ja) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Works Ltd | 適正在庫量算出方法およびそのシステム |
JP2006251869A (ja) * | 2005-03-08 | 2006-09-21 | Hitachi Ltd | 受発注システム |
JP2007128225A (ja) * | 2005-11-02 | 2007-05-24 | Mitsubishi Electric Corp | 情報作成装置 |
JP2008123409A (ja) * | 2006-11-15 | 2008-05-29 | Konica Minolta Holdings Inc | サプライチェーンの効率化支援方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5287267A (en) * | 1991-05-10 | 1994-02-15 | International Business Machines Corporation | Methods for parts procurement quantity determination where demand is uncertain for the product in which the parts are used |
US6970841B1 (en) * | 2000-04-17 | 2005-11-29 | International Business Machines Corporation | Large inventory-service optimization in configure-to-order systems |
US20030101107A1 (en) * | 2001-11-29 | 2003-05-29 | Rishi Agarwal | Inventory management system and method |
US6643556B1 (en) * | 2002-06-05 | 2003-11-04 | J. D. Edwards World Source Co. | Method for optimizing a supply-consumption operation |
US7499766B2 (en) * | 2002-10-11 | 2009-03-03 | Invistics Corporation | Associated systems and methods for improving planning, scheduling, and supply chain management |
US8321305B2 (en) * | 2008-09-15 | 2012-11-27 | International Business Machines Corporation | Managing assemblies with uncertain demands containing common parts |
-
2008
- 2008-12-22 US US13/141,355 patent/US20120089489A1/en not_active Abandoned
- 2008-12-22 JP JP2010543653A patent/JP5090537B2/ja not_active Expired - Fee Related
- 2008-12-22 WO PCT/JP2008/073305 patent/WO2010073311A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004118429A (ja) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Works Ltd | 適正在庫量算出方法およびそのシステム |
JP2006251869A (ja) * | 2005-03-08 | 2006-09-21 | Hitachi Ltd | 受発注システム |
JP2007128225A (ja) * | 2005-11-02 | 2007-05-24 | Mitsubishi Electric Corp | 情報作成装置 |
JP2008123409A (ja) * | 2006-11-15 | 2008-05-29 | Konica Minolta Holdings Inc | サプライチェーンの効率化支援方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2010073311A1 (ja) | 2012-05-31 |
US20120089489A1 (en) | 2012-04-12 |
JP5090537B2 (ja) | 2012-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2011022987A (ja) | 部品発注量決定装置および部品発注量決定プログラム | |
JP2010250674A (ja) | 作業時間予測装置、方法、およびプログラム | |
JPWO2006100753A1 (ja) | コスト情報管理システム、コスト情報管理方法およびコスト情報管理プログラム | |
JP5090537B2 (ja) | 部品の安全在庫量の算出方法、その実行プログラム、及びその実行装置 | |
US20060004616A1 (en) | Method and system for solution design and recording medium | |
US8494893B2 (en) | Production plan making program, device, and method | |
JPWO2007060985A1 (ja) | 生産資源管理システム、評価値算出方法及びプログラム | |
US8521622B2 (en) | Computer system for managing part order placement | |
JP2008052413A (ja) | 販売計画の評価支援システム | |
JP5306378B2 (ja) | 受注生産工程決定装置、プログラム、受注生産工程決定システム及び受注生産工程決定方法 | |
JP5948634B2 (ja) | 在庫管理装置 | |
JP2021089591A (ja) | プロジェクト管理システム、プロジェクト管理方法、およびプログラム | |
JP5678729B2 (ja) | 情報処理装置、作業重視度算出方法、および作業重視度算出プログラム | |
JP6840966B2 (ja) | 参考情報出力プログラム、参考情報出力方法、及び参考情報出力装置 | |
US20220051189A1 (en) | Automatic negotiation apparatus, automatic negotiation method, and computer-readable recording medium | |
WO2007132581A1 (ja) | ワークフローシステム、管理方法、プログラム及び記録媒体 | |
JP2010003202A (ja) | 手配指示計画プログラム、手配指示計画装置、および手配指示計画方法 | |
US20140006092A1 (en) | Management apparatus and management method | |
JP2015082141A (ja) | 原単位算出装置、原単位算出方法 | |
TWI655535B (zh) | 程式異動管理系統及程式異動管理方法 | |
US20220391956A1 (en) | Order management system, order management method, computer-readable storage medium | |
JP3923509B2 (ja) | 生産管理装置、生産管理用プログラム及び生産管理方法 | |
JP2018147039A (ja) | 製造情報管理装置、製造情報管理方法および製造情報管理プログラム | |
JP6799512B2 (ja) | 計画立案システムおよび計画立案方法 | |
JP2009020584A (ja) | 資産運用装置 |
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: 08879108 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2010543653 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13141355 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08879108 Country of ref document: EP Kind code of ref document: A1 |