JP5227920B2 - Parts storage management system and parts storage management method - Google Patents

Description

  The present invention relates to inventory management technology for parts used in equipment manufactured at a factory, and in particular, when a parts supplier declares the end of use of parts (notice of discontinuation of production), the management of stocking of end parts and proposal for alternative design The present invention relates to a component storage management system and a component storage management method having a function to be performed.

  Conventionally, when the end parts occur in the parts used in the equipment being manufactured, the parts supply management system that notifies the manufacturer via the network, for example, the order of the manufacturer that needs the end parts A technique has been considered in which the number is collected and the end parts are ordered from the manufacturer in a lump (see, for example, Patent Document 1 and Patent Document 2). However, it was not a system or method for stockpiling management by batch manufacturing and evaluation of alternative design by alternative parts. In view of this, a system that evaluates alternative design by calculating the cost required for stockpiling at the time of stocking the end parts and the cost for alternative design has been studied (for example, see Patent Document 3).

Japanese Patent Application Laid-Open No. 2004-287943 JP 2002-007824 A JP 2007-249848 A

  However, since the conventional technology is a system that evaluates alternative design by calculating the cost of stockpiling and the cost of alternative design at the time of stocking the final parts, monitoring the number of stocks after stocking the final parts It was not done appropriately. For this reason, if the inventory of finished parts becomes less than the initial forecast due to fluctuations in the number of shipped equipment or fluctuations in the required plan, this cannot be detected and must be handled immediately before the shortage. There was no time for alternative design, and there was a risk of great damage for customers and manufacturers.

  In view of the above problems, the object of the present invention is to reduce the shortage of stockpile parts as soon as possible when the parts used in the equipment being manufactured are declared to end and the manufacture of the equipment using stockpile parts continues. Predict and avoid depletion of stockpile parts, allow time to redesign to avoid the use of end parts, and which package to use even if the same end part is used for multiple packages It is an object of the present invention to provide a component storage management system and a component storage management method that can easily determine whether redesign is appropriate.

  The invention according to claim 1 is a component storage management system for detecting a shortage of storage of components used in a device produced in a factory, and component data used for each device or each package constituting a hardware circuit for each function. Device configuration DB, shipping history DB that stores shipping history data of devices that have been delivered to customers in the past, requirements planning DB that stores required planning data of devices or packages including the number of orders, and end of manufacturing of devices The device termination plan DB for storing the plan data and the device configuration DB, the shipping history DB, the required plan DB, and the device termination plan DB according to the information on the termination component input from the outside, Estimate the number of stocks of finished parts, calculate the required number of parts in the future, and calculate the planned stock of stock from the number of stocks and the required number of parts. A lifetime production number prediction DB that stores the number of parts, the required number of parts calculated by the lifetime production number prediction unit, and the planned number of stocks stored, and a parts inventory management DB that stores the actual inventory number of the end parts, A comparison / determination unit that compares the actual inventory quantity stored in the parts inventory management DB with the planned stock inventory quantity stored in the lifetime production quantity prediction DB at any time or every predetermined period to determine the shortage of end parts. And a warning unit that issues a reserve shortage prediction warning when the comparison determination unit determines that the end component is insufficient.

  The invention according to claim 2 is the parts stockpiling management system according to claim 1, wherein the comparison / determination unit stores the actual inventory number stored in the parts inventory management DB and the lifetime production number at any time or every predetermined period. Comparing the number of scheduled stocks stored in the forecast DB and calculating the shortage time of the end parts, and the warning unit issues a shortage prediction alarm including the shortage time of the end parts calculated by the comparison determination unit It is characterized by.

  According to a third aspect of the present invention, in the parts stockpiling management system according to the first aspect, an inventory fluctuation updating unit that calculates a part usage record from a fluctuation situation of inventory every predetermined period and updates the parts inventory management DB. In addition, the lifetime production number prediction unit re-predicts the required number of parts of the end parts every time the parts inventory management DB is updated, and the number of re-predicted required parts and the number of reserves of the end parts initially determined From now on, it is characterized by recalculating the future planned stock of inventory.

The invention according to claim 4 is the component data used for each device or each package constituting the hardware circuit for each function in the component storage management system for detecting the shortage of the components used in the device produced in the factory. Device configuration DB, shipping history DB that stores shipping history data of devices that have been delivered to customers in the past, requirements planning DB that stores required planning data of devices or packages including the number of orders, and end of manufacturing of devices Referring to the device configuration DB, the shipping history DB, the required plan DB, and the device termination plan DB according to the information of the device termination plan DB for storing the plan data and the termination component input from the outside Lifetime production number prediction unit that calculates the future required number of packages that use parts, and saves the required number of packages calculated by the lifetime production number prediction unit A lifetime production expected number DB that, the package actual production DB that stores package production record, each optionally or predetermined period, the actual production of the package production result DB to store, package the lifetime production number prediction DB stores A comparison determination unit for determining the shortage of end parts from the excess or shortage of the production number, and an alarm unit for issuing a stockpile shortage prediction warning when the comparison determination unit determines that the end parts are insufficient. Is provided.

  The invention according to claim 5 is the parts storage management system according to claim 4, wherein the comparison and determination unit stores the production results stored in the package production result DB and the lifetime production number prediction at any time or every predetermined period. Comparing with the required number of packages stored in the DB, the shortage time of the end parts is calculated from the excess or shortage of the number of packages produced, and the alarm unit stores the shortage time of the end parts calculated by the comparison determination unit It is characterized by issuing a shortage prediction warning.

The invention according to claim 6 is the parts storage management system according to claim 4, further comprising a parts inventory management DB for storing the inventory quantity of the end parts , wherein the lifetime production number prediction unit uses the end parts In addition to calculating the required number of future packages, the final number of parts to be stocked is determined, the required number of future parts is calculated, and the planned number of stocks to be stored in the future is calculated from the number of stocks and the required number of parts. The lifetime production number prediction DB stores the required number of the package calculated by the lifetime production number prediction unit, the reserve number, the required number of parts, and the planned reserve stock number, and the package A part usage record calculation unit that calculates the component use record from the production record status for each predetermined period of the production record DB is further provided, and the lifetime production number predicting unit is based on the inventory quantity of the end parts stored in the parts inventory management DB. Actual use Asked performs the parts required number of re-prediction of the termination parts, make future plans stockpiled inventory number of the re-calculated from the stockpile number of finalized termination parts to re-predicted parts required number and the first, the comparison determination unit, The shortage of end parts is determined by comparing the actual inventory quantity stored in the parts inventory management DB with the planned stock quantity stored in the lifetime production quantity prediction DB at any time or every predetermined period. To do.

  The invention according to claim 7 is the component storage management system according to claim 1, further comprising a package production result DB for storing production results for each package when the same type of part is used in a package of a plurality of devices. The lifetime production number predicting unit refers to the device configuration DB, the shipping history DB, the required plan DB, and the device end plan DB in accordance with information on end parts input from the outside, for each package. In addition, the final part stockpile number is determined, the future part requirement number is calculated, and the future stockpile inventory number is calculated from the stockpile number and the part required number. The number of stockpiles calculated by the lifetime production number prediction unit, the required number of parts, and the number of planned stockpile stocks are stored for each package, and the comparison determination unit is configured to store the parts stock at any time or every predetermined period for each package. The actual stock number stored in the physical DB and the planned stockpiling stock number stored in the lifetime production number prediction DB are compared to determine the shortage of end parts for each package. When it is determined that there are insufficient end parts, a stockpile shortage prediction warning is issued for each package.

  According to an eighth aspect of the present invention, in the parts storage management system according to the first aspect, the lifetime production number predicting unit is configured such that the device configuration DB, the shipping history DB, and the device each time a required package plan is reviewed. Referring to the end plan DB, recalculating the future required number of parts of the end part, and recalculating the future planned stock quantity from the stock number and the required number of parts, and predicting the number of lifetime production The content stored in the DB is updated.

  The invention according to claim 9 is the parts storage management system according to claim 8, wherein the comparison and determination unit is configured to store the number of actual stocks stored in the parts stock management DB and the number of lifetime productions at any time or every predetermined period. Comparing the number of scheduled stocks stored in the forecast DB and calculating the shortage time of the end parts, and the warning unit issues a shortage prediction alarm including the shortage time of the end parts calculated by the comparison determination unit It is characterized by.

  The invention according to claim 10 is the parts storage management system according to claim 8, wherein the same type of part is used in a package of a plurality of devices, and the comparison determination unit detects a shortage of storage of the end part. In this case, an alternative design prediction unit that performs alternative design of the end part for each package and outputs, for each package, alternative design information including an alternative design cost, a shortage period, and the number of alternative products to be used for each package. Are further provided.

The invention according to claim 11 is to supply parts data used for each device or for each package constituting a hardware circuit for each function, to a customer in the past, for shortage of parts used in equipment produced in a factory. In the part stockment management method that is detected by a computer by referring to the device shipping history data, the device or package requirement plan data including the number of orders received, and the device manufacturing end plan data, the end parts input from the outside According to the information, the part data , the shipping history data , the required plan data, and the production end plan data are referred to, the number of stocks of the end parts is determined, the required number of future parts is calculated, and the stock is stored. future plans stockpiled inventory number of the calculation and the lifetime production expected number of steps to perform, the stockpile number was calculated by the lifetime production expected number of steps and parts required from the number and the parts required number And a lifetime production expected number of data storage To save the planned stockpile inventory number of a lifetime production expected number of data, and parts inventory management data storage To save the inventory number of stockpiling parts as appropriately updated while parts inventory management data, at any time or every predetermined period, and inventory quantity stored as the parts inventory management data, by comparing the lifetime production planned number stockpiled inventory stored as prediction data, a comparison procedure for determining the shortage of termination components, A warning procedure for issuing a stockpile shortage prediction warning when it is determined in the comparison procedure that the number of end parts is insufficient is executed by a computer .

According to a twelfth aspect of the present invention, in the component storage management method according to the eleventh aspect, the comparison procedure includes the actual inventory number stored as the component inventory management data and the lifetime production number at any time or every predetermined period. Comparing with the number of planned stocks stored as forecast data, the shortage time of the end parts is calculated, and the alarm procedure issues a stock shortage prediction warning including the shortage time of the end parts calculated by the comparison procedure It is characterized by.

  According to a thirteenth aspect of the present invention, in the parts stockpiling management method according to the eleventh aspect, the lifetime production number prediction procedure calculates a part usage record from a stock fluctuation status every predetermined period, and the parts of the end part The required number is re-predicted, and the future estimated stock of inventory is recalculated from the re-predicted number of parts required and the number of stocks of the final parts determined first.

In the invention according to claim 14, the shortage of the stock of parts used in the equipment produced in the factory is delivered to the customer in the past and the part data used for each device or each package constituting the hardware circuit for each function. In the part stockment management method that is detected by a computer by referring to the device shipping history data, the device or package requirement plan data including the number of orders received, and the device manufacturing end plan data, the end parts input from the outside According to the information, the part data, the shipping history data, the required plan data, and the production end plan data are referred to, the number of stocks of the end parts is determined, the required number of future parts is calculated, and the stock is stored. Pa constituting the lifetime production number prediction procedure for the calculation of expected stockpiled inventory for future several and said component required number, device each or by function hardware circuits A device configuration data storage procedure for storing the parts data to be used for each cage, and the shipment history data storage procedure for storing the shipping history data of the device delivered to the customer in the past, required planning data of the device or package including a number of orders The required plan data storing procedure for storing the device, the device end plan data storing procedure for storing the production end plan data of the device, and the part data , the shipping history data , required planning data and said with reference to the production termination plan data, and lifetime production number prediction procedure for future required number of the calculation of the package that uses termination components, future required package calculated by the lifetime production number prediction procedure and lifetime production expected number of data storage procedure to save the number as a lifetime production number of predicted data, path to save the package of production performance data The cage production result data storage procedure, each optionally or predetermined period, and a package of production result data stored by the package production result data storage procedure, the future required lifetime package saved in production expected number data stored procedure computer compares the number and determining comparison procedure for the lack of termination parts from the production number of excess or deficiency of the package, and alarm procedures that emits stockpile shortage prediction alarm when the comparison procedure is determined to be insufficient termination component It is characterized by performing by .

The invention according to claim 15, in the component stockpile management method according to claim 14, wherein the comparison procedure every time to time or a predetermined time period, the package of the production result data stored by the package production result data storage procedure, Compared with the required number of packages stored in the lifetime production number prediction data storage procedure, the shortage time of the end parts is calculated from the excess or shortage of the package production number, and the alarm procedure is calculated by the comparison procedure It is characterized by issuing a stockpile shortage prediction warning including the shortage period of the finished parts.

According to a sixteenth aspect of the present invention, in the parts stockpiling management method according to the fourteenth aspect, the actual inventory number of the end parts is stored as part inventory management data, and the lifetime production number prediction procedure is performed by the device using the end parts. In addition to calculating the required number of packages in the future, it is necessary to determine the number of stocks of finished parts, calculate the required number of parts in the future, and calculate the planned number of stocks in the future based on the number of stocks and the required number of parts. carried out, the lifetime production expected number of data storage procedures, and the required number of the package that the lifetime production estimated number of procedures have been calculated, and the stockpiling number, and the parts required number, the planned stockpile inventory number and the lifetime production number prediction stored as data, the production results provided from the actual production situation for each predetermined period of the data further components use record calculation procedure for calculating the actual use of the component, the lifetime production number prediction step, the parts inventory management data To seeking proven use from inventory number of termination parts to be stored and re-prediction of parts required number of termination parts, the future of the planned stockpile from the stockpile number of finalized ceased parts re-predicted parts required number and the first to The number of inventory is recalculated, and the comparison procedure includes the actual inventory number stored as the parts inventory management data and the planned stockpiling inventory number stored as the lifetime production number prediction data at any time or every predetermined period. In comparison , the computer executes a comparison procedure for determining the shortage of end parts, and an alarm procedure for issuing a stockpile shortage prediction warning when the comparison procedure determines that the end parts are insufficient.

The invention according to claim 17, in the component stockpile management method according to claim 11, when using the same type parts in packages of a plurality of devices, storage package production result data to store the actual production data for each package A procedure is further provided, and the lifetime production number prediction procedure refers to the part data , the shipping history data , the required plan data, and the production end plan data according to the information of the end parts input from the outside, For each package, determine the number of stocks of finished parts, calculate the required number of parts in the future, and calculate the planned number of stocks in the future from the number of stocks and the required number of parts. Save the required number scheduled stockpiled inventory for each package, the comparison procedure, for each package, fruit every any time or a predetermined time period is stored as the parts inventory management data Determining the inventory, by comparing the Appointments stockpiled inventory stored the a lifetime production expected number data, to determine the lack of termination components for each package, the alarm procedure, and the comparison procedure termination component is insufficient In this case, a stock shortage prediction warning is issued for each package.

According to an eighteenth aspect of the present invention, in the part stockpiling management method according to the eleventh aspect, the lifetime production number predicting procedure includes the part data , the shipping history data, and the production end each time a package required plan is reviewed. With reference to the plan data , the recalculation of the future required number of parts of the end part, and the recalculation of the future planned stock of stock from the number of the stock and the required number of parts, the lifetime production number prediction data It is characterized by updating.

The invention according to claim 19 is the parts storage management method according to claim 18, wherein the comparison procedure includes the actual inventory quantity stored as the parts inventory management data and the lifetime production quantity at any time or every predetermined period. Comparing with the number of planned stocks stored as forecast data, the shortage time of the end parts is calculated, and the alarm procedure issues a stock shortage prediction warning including the shortage time of the end parts calculated by the comparison procedure It is characterized by.

The invention according to claim 20 is the component storage management method according to claim 18, wherein the same type of component is used in a package of a plurality of devices, and the storage shortage of the end component is detected in the comparison procedure. A replacement design prediction procedure for performing replacement design of the end parts for each package, and outputting replacement design information for each package including replacement design cost, shortage period, and number of replacement products to be used for each package; Is further executed by a computer .

  In the part stockpiling management system and the part stockpiling management method according to the present invention, when the parts used in the equipment being manufactured are declared to end and the equipment is being manufactured using the stockpiled parts, there is a shortage of stockpiling parts. It is possible to predict the timing as soon as possible to avoid the depletion of the stocked parts, and to secure time for redesign so that the end parts are not used. Furthermore, even if the same termination part is used for a plurality of packages, it is possible to easily determine which package is appropriate for redesign.

It is a block diagram showing an example of composition of parts stockpiling management system 100 concerning the 1st to 8th embodiment. It is explanatory drawing which shows an example of the number of parts required at the time of a plan, the number of stockpile, and the planned stockpile stock number. In the component stockpiling management system 100 according to the first embodiment, it is an explanatory diagram showing an example of predicting the shortage of stock of end components from the end-of-year stock number of end components and the planned stock of stock. In the parts stockpiling management system 100 according to the second embodiment, it is an explanatory diagram showing an example of predicting the stockpile shortage of end parts from the end-of-year stock quantity of end parts and the planned stock quantity. It is explanatory drawing which shows an example which calculates | requires the use result of a component from the end-of-year stock quantity of a termination | finished component. It is explanatory drawing which shows an example which feeds back the use results result of an end part, and performs storage management of an end part in the parts storage management system 100 which concerns on 3rd Embodiment. In the component stockpiling management system 100 which concerns on 4th Embodiment, it is explanatory drawing which shows an example which estimates the shortage of stockpile of a termination | terminus component using the production performance number of a package. In the parts stockpiling management system 100 which concerns on 5th Embodiment, it is explanatory drawing which shows an example which estimates the time of the stockpile shortage of an end part using the number of production results of a package. It is explanatory drawing which shows the relationship between a package production track record number and a component use track record number. It is explanatory drawing which shows an example which feeds back the production result of a package and performs storage management of a termination | finish part in the parts storage management system 100 which concerns on 6th Embodiment. It is explanatory drawing which shows an example which performs the stockpile management in case the termination | terminus part is used for multiple packages in the parts stockpile management system 100 which concerns on 7th Embodiment. In the parts stockpiling management system 100 concerning 7th Embodiment, it is explanatory drawing which shows the example of a track record of the end-of-year stock quantity of a termination | finish part. It is explanatory drawing which shows an example of the components stockpiling management system 100 using the number of production results of a package as a modification of 7th Embodiment. In the parts stockpiling management system 100 according to the eighth embodiment, it is an explanatory diagram showing a recalculation example of the required number of parts of the end parts. In the parts stockpile management system 100 concerning an 8th embodiment, it is an explanatory view showing the example of recalculation of the planned stockpile stock number of the end parts. It is a block diagram which shows the structural example of the components stockpiling management system 100a which concerns on 9th Embodiment. In the component stockpiling management system 100a which concerns on 9th Embodiment, it is explanatory drawing which shows the result re-calculated reflecting the result result of the required number of packages. It is explanatory drawing which shows an example in the case of performing alternative design of package AA. It is explanatory drawing which shows an example in the case of performing alternative design of package BB. It is explanatory drawing which shows the example of an output of a redesign result.

Hereinafter, embodiments of the “parts storage management system and parts storage management method” according to the present invention will be described in detail.
(Regarding the configuration and processing common to each embodiment)
First, a configuration and processing common to each embodiment will be described. FIG. 1 is a block diagram illustrating a configuration example of a component storage management system 100 common to the embodiments. The component storage management system 100 in FIG. 1 outputs a warning by predicting in advance the shortage of the stock of the final part and outputting an alarm when the part used in the device manufactured at the factory is the final part (production end part). It is a management system. In FIG. 1, a parts storage management system 100 includes a management control unit 101 configured by a computer, an input operation unit 102, a display unit 103, and a plurality of databases (hereinafter referred to as DBs) in which various types of information are stored. 104.

  In the first to third embodiments, the plurality of DBs 104 are an apparatus configuration DB 151, a shipping history DB 152, a required plan DB 153, an apparatus end plan DB 154, a parts inventory management DB 155, and a lifetime production number prediction DB 157. Further, in the fourth to sixth embodiments, the production performance DB 156 is used instead of the parts inventory management DB 155. It should be noted that at least one of the parts inventory management DB 155 and the production performance DB 156 may be arranged, but both may be arranged as shown in FIG. Also, in this embodiment, a dedicated DB is provided for each content to be held so that the explanation is easy to understand. However, each information may be stored together in one database, as in this embodiment. Any storage medium that stores the above information is within the scope of application of the component storage management system 100 according to the present embodiment.

  Here, in each embodiment, it is assumed that the apparatus includes a plurality of packages (a group of hardware circuits for each function). For example, it is composed of an optical interface board package, a LAN interface board package, a control board package, and the like, and these packages are combined into a casing to constitute one apparatus. Accordingly, a plurality of the same parts may be used in the same package, or the same parts may be used in a plurality of packages. In the description of each embodiment, a case where only one component is used in one package is referred to as a basic unit 1. For example, when the number of packages shipped in basic unit 2 is 500, the required number of parts is 1000.

  Next, the management control unit 101 will be described. The management control unit 101 is configured by a computer or the like, and operates according to a stockpiling part management program. For example, when receiving the notification of the end part from the part manufacturer, the operator inputs the end part information (information for specifying the end part) from the input operation unit 102. When the end part information is input, the management control unit 101 automatically starts the storage management process for the end part. Specifically, the management control unit 101 obtains the required number of parts, the number of stocks, the planned stock number of stocks, etc. of the finished parts, so that the shortage of the stock of the finished parts until the scheduled end of production of the device or package is periodically or periodically And alarms are output when there is a risk of shortage of stock of finished parts.

  Next, the configuration and processing of the management control unit 101 will be described in detail. The management control unit 101 includes a required planning unit 201, a lifetime production number prediction unit 202, a comparison determination unit 203, and an alarm unit 204, and basic processing is executed in these blocks. Further, the management control unit 101 includes a shipping history update unit 205, a parts inventory number update unit 206, and a production record number update unit 207 as processing blocks for sequentially updating data stored in the database. The processing of each block is executed in cooperation with each other according to a program stored in advance in the computer constituting the management control unit 101. Further, in this embodiment, a dedicated processing unit is provided for each processing content so that the explanation is easy to understand. However, for example, the required planning unit 201 and the lifetime production number prediction unit 202 may be combined into one processing block. Any processing contents similar to those of the present embodiment are within the scope of application of the parts storage management system 100 according to the present embodiment.

  Hereinafter, each block of the management control unit 101 will be described in order.

  The required planning unit 201 obtains the required planned number of packages with relatively high accuracy from the planned order received from the customer, the number of actual shipments for each device or package stored in the shipping history DB 152, the market trend, and the like. Save in the DB 153. Alternatively, the number of required plans obtained separately may be input by the operator from the input operation unit 102 and stored in the required plan DB 153. Here, the actual number of shipments may be stored in the shipment history DB 152 as needed in cooperation with a shipment management computer (not shown) or the like, or may be stored by the operator from the input operation unit 102. The given shipping history DB 152 may be stored.

  The lifetime production number prediction unit 202 is one of the core parts of the present invention. When the end part information is input from the input operation unit 102 by the operator, the process is automatically started, and the device configuration DB 151 and the required plan DB 153 are started. Further, referring to the apparatus termination plan DB 154, the required number of parts to be terminated in the future is obtained, and the number of stockpile is determined. Further, the future planned stock quantity of the end parts is calculated from the calculated required part number and stock quantity every predetermined period (each year in each embodiment). Then, the obtained number of stockpiling, the required number of parts for each year, and the planned stockpiling stock number are stored in the lifetime production number prediction DB 157.

  The comparison determination unit 203 is configured to store the actual inventory quantity of the finished parts held in the parts inventory management DB 155 and the scheduled parts for each year of the finished parts held in the lifetime production number prediction DB 157 at a predetermined time point (as needed or every predetermined period). Compare with the number of stocks in stock, and determine whether there is an excess or deficiency of end parts. For example, if the number of inventory of finished parts is less than the planned stock of stock, it is determined that there is a shortage of stock of finished parts. If the number of stock of finished parts is more than the planned stock of stock, Determine that it does not occur. In each embodiment, the predetermined time point determined by the comparison determination unit 203 is the beginning of the year (the time point when the numerical value of the previous year is determined), and the predetermined period is the year period. That is, the excess / shortage of the inventory of the finished parts is determined every year.

  The alarm unit 204 outputs a reserve shortage prediction warning when the comparison determination unit 203 determines that the end parts are insufficient. In addition, when the shortage time (in the case of this embodiment, the shortage year) is known, the shortage time is also output as a warning. In the example of this embodiment, the alarm is output to the display unit 103 as an alarm message. For example, an alarm is output on the screen of the display unit 103 such as “part B of package A may be insufficient in 2013”. Alternatively, a similar warning message may be automatically printed by a printer, or an e-mail or fax containing the warning message may be automatically transmitted to a registered manufacturing manager. Absent.

The shipping history update unit 205 sequentially updates the shipping history data held in the shipping history DB 152. The shipment history data is, for example, shipment information such as the number of shipments, shipment date, shipment destination, and production number for each device. Specifically, the shipping history update unit 205 sequentially receives shipping information from the shipping terminal (device name, shipping number, shipping date, shipping destination, manufacturing number, etc.) every time a product shipping process is performed at the shipping terminal in the product warehouse. And the shipping history DB 152 is updated. Alternatively, the operator may input from the input operation unit 102. The parts inventory quantity update unit 206 sequentially updates the inventory quantity of the stored parts held by the parts inventory management DB 155. Specifically, the parts inventory quantity update unit 206 manages the quantity of parts stocked in the parts warehouse, and periodically (daily, weekly, monthly or yearly etc.) or whenever a part is used for manufacturing. The stock quantity is updated and stored in the parts stock management DB 155. Here, the quantity of the parts stocked in the parts warehouse is appropriately stored in the parts inventory management DB 155 in cooperation with a computer (not shown) that manages the loading and unloading of the parts warehouse. Alternatively, it may be stored in the parts inventory management DB 155 given by the operator from the input operation unit 102. Note that the case of using the parts inventory management DB 155 will be described in detail in the first to third embodiments.

The production record number update unit 207 sequentially updates the production record number stored in the production record DB 156. Specifically, the production record number updating unit 207 counts the production record number for each predetermined period in which the device or package is actually manufactured and stores it in the production record DB 156. Here, the number of production results may be appropriately stored in the production result DB 156 in cooperation with a computer (not shown) that manages the manufacturing apparatus, or the operator may input from the input operation unit 102 to the operator. May be stored in the production record DB 156. Note that the case of using the production result DB 156 will be described in detail in the fourth to sixth embodiments.
[About multiple DBs 104]
Next, each DB constituting the plurality of DBs 104 will be described in order.

  The device configuration DB 151 is a database that stores component data used in the device. Here, the apparatus described in the present embodiment includes a plurality of packages in which hardware circuits are grouped for each function. The device configuration DB 151 stores the type of package used in each device and the component data used in each package in association with each other. Note that the component data used in each package includes at least information on the type and quantity of the component, and may include information such as a manufacturer name and a price. These component data are input by the operator from the input operation unit 102 and stored in the apparatus configuration DB 151. Alternatively, information such as product drawings and parts lists may be input online or via a storage medium such as a memory card and stored in the device configuration DB 151. In any case, in this embodiment, it is assumed that information on at least the type and quantity of parts used for each device and each package is stored in the device configuration DB 151 in advance.

  The shipping history DB 152 is a database that stores shipping history data of shipped devices. The shipping history data is appropriately updated by the shipping history update unit 205 described above.

  The required plan DB 153 stores the required plan number with high accuracy including the number of orders calculated by the required plan unit 201 of the management control unit 101 for each device and each package.

  Here, in each embodiment, the required plan number calculated by the required plan unit 201 and the predicted shipment number calculated by the lifetime production number prediction unit 202 are defined. In each embodiment, the required number of plans is defined as the expected number of shipments of products about two years ahead with relatively high accuracy calculated using market trends including the number of orders received from customers. Is defined as a prediction of the number of shipments in and after several years calculated using a predetermined prediction method based on the past number of actual product shipments and the number of required plans. That is, the predicted shipment number is the planned shipment number of a device or package that has a lower accuracy than the required planned number including the planned order quantity. The predetermined prediction method will be described in detail later.

  The device end plan DB 154 stores production end plan data based on the product life of the device. The production end plan data is information indicating, for example, a production end scheduled year for each device (such as a device A scheduled production end year = 2015). In this embodiment, it is assumed that the production end plan data of the apparatus is input by the operator from the input operation unit 102 and stored in advance in the apparatus end plan DB 154.

  The parts inventory management DB 155 stores the stock quantity of stocked parts. Here, the stock quantity of stockpiled parts is appropriately updated by the parts stock quantity update unit 206 of the management control unit 101 described above. Note that the case of using the parts inventory management DB 155 will be described in detail in the first to third embodiments.

  The production performance DB 156 stores the number of production results for a certain period. Here, the production record number is appropriately updated by the production record number update unit 207 of the management control unit 101 described above. Note that the case of using the production result DB 156 will be described in detail in the fourth to sixth embodiments.

The lifetime production number prediction DB 157 indicates the required number of parts, the number of reserves, and the schedule determined by the lifetime production number prediction unit 202 of the management control unit 101 described above when the end part is notified from a parts manufacturer or an agent. This is a database that stores the number of stocks stored. The lifetime production number prediction unit 202 includes the required number of plans for each device or package stored in the required plan DB 153 and the number of parts used for each device or package stored in the device configuration DB 151 (basic unit). And the end-of-manufacturing year of the apparatus stored in the apparatus end-of-plan DB 154, the required number of parts, the number of stocks, and the number of planned stock inventories up to the end-of-manufacturing year of the equipment are predicted using a predetermined prediction method. Then, after the storage of the finished parts is completed, these prediction results are stored in the lifetime production number prediction DB 157. Here, a predetermined prediction method will be described.
[About predetermined prediction methods]
Various statistical methods are known as a prediction method for predicting the required number of parts, the number of reserves, and the planned number of stocks in stock until the year when the equipment is manufactured, but here, an example of the prediction method is shown in FIG. Will be described. Fig. 2 shows how to determine the number of stocks of end parts and the planned stock of stock used in one package of a certain device during the period from the start of manufacturing (FY 2004) to the scheduled end of manufacturing (FY 2015). It is the figure which showed the numerical example.

  In FIG. 2, the time when the end parts are notified from the parts manufacturer or the like (beginning of fiscal 2009) is set as the present time, and the number of stocks of the end parts and the planned stock of stocks are obtained. Therefore, the number of packages shipped from FY2004 to FY2008 is an actual value. The number of required plans in FY2009 and FY2010 is the required number of packages with relatively high accuracy obtained from specific orders received from customers and market trends. Since 2011, there are no specific orders, so the number of shipments can be calculated using a predetermined prediction method based on the actual number of shipments of packages from FY2004 to FY2008 and the number of required plans in FY2009 and FY2010. Predict (predicted shipment quantity). These processes are performed by the lifetime production number prediction unit 202 of the management control unit 101.

  Here, an example of calculating the predicted shipment number of packages will be described. First, the lifetime production number predicting unit 202 calculates the fiscal year 2005 when the number of packages shipped is the peak (maximum) in the past results (stored in the shipping history DB 152) from the fiscal year 2004 to the fiscal year 2008 in FIG. As a standard, the number of shipments in the peak year (FY2005) (1600) versus the number of shipments (actual results) in the following years (FY2006 to 2010) and the required number of plans stored in the requirement plan DB 153 Sheet)) (hereinafter referred to as peak ratio). For example, since the number of shipments (actual results) in fiscal 2006 is 1300, the ratio to the peak time is 1300/1600 = 0.81 (2 digits after the decimal point). Similarly, it will be 0.63 in FY2007 and 0.56 in FY2008. In FY2009 and FY2010, the required number of plans is used instead of the number of shipments (actual results), and the ratio with the peak time is similarly obtained. For example, it is 0.56 in 2009 and 0.50 in 2010.

  Next, the lifetime production number prediction unit 202 obtains an average value (referred to as a prediction ratio) of the ratio of the peak time from the fiscal year 2005 to the fiscal year 2010 that was obtained in the previous fiscal year. The lifetime production number prediction unit 202 then multiplies the predicted ratio (0.68 in the case of FY2011 in FIG. 2) by the required number of plans in the previous year (2010) to estimate the number of shipments in FY2011 ( 541). Further, the lifetime production number prediction unit 202 obtains a ratio 0.34 (541/1600) between the predicted shipment number (541 sheets) and the peak time (1600 sheets), and this ratio is 0 to the peak time in 2011. .34.

  Similarly, for the next fiscal year 2012, the lifetime production number prediction unit 202 obtains the prediction ratio from the fiscal year 2005 to the fiscal year 2011, and this prediction ratio (0.63 in the case of the fiscal year 2012 in FIG. 2) is set to the previous year (2011). A value obtained by multiplying the predicted shipment number in (FY) is set as the predicted shipment number (339) in 2012. Further, the lifetime production number prediction unit 202 obtains a ratio 0.21 (339/1600) between the predicted shipment number (339 sheets) and the peak time (1600 sheets), and this ratio is 0 to the peak time in 2012. .21.

  For the following fiscal years (from fiscal 2013 to fiscal 2015), the predicted shipment number can be obtained in the same manner as in the above fiscal year 2012. In the case of FIG. 2, the predicted shipment number is 195 in FY2013, 102 in FY2014, and 48 in FY2015.

  In this way, the lifetime production number predicting unit 202 obtains the required number of packages (hereinafter referred to as the required PG number) and the cumulative value of the required PG number for the years after the current time (from 2009 to 2015). it can. For example, in the case of FIG. 2, the cumulative value of the required number of PGs in 2015 is 2,925.

  Next, assuming that the number of used end parts in the package is basic unit = 1, the cumulative number of required parts and the required number of parts are the same as the required number of packages (the required number of PGs) and the cumulative value of the required number of PGs. become. For example, the cumulative value of the required number of finished parts in FY2015 is 2,925. As a result, it can be seen that the number of stocks of end parts required by the end of the manufacture of the package in 2015 is 2,925. Furthermore, the planned number of stocks of finished parts is a value obtained by subtracting the required number of parts for each year from the number of stocks (2925). For example, in 2009, the required number of parts for the current year is calculated from the number of stocks (2925). 2025 items obtained by subtracting the cumulative value (900 items) is the planned stockpiling stock number. Similarly, in fiscal 2010, the number of stockpiling stocks (2925) is calculated by subtracting the cumulative value (1700) of the required number of parts in the current year to become the planned stockpiling inventory number. Similarly, the planned stockpiling stock numbers for the following years are 684 in 2011, 345 in 2012, 150 in 2013, 48 in 2014, and 0 in 2015.

In this way, if the number of packages shipped is as predicted, the scheduled stock quantity of the end parts will be exactly zero in the year 2015 when the device is finished manufacturing. As described above, when the end parts are generated at the present time (beginning of fiscal 2009), the lifetime production number prediction unit 202 obtains the number of stocks of the end parts and the planned number of stocks in stock for the lifetime. Save in the production number prediction DB 157.
[Flow of processing at the time of planning for the parts storage management system 100]
Here, the flow of processing at the time of planning of the parts stockpiling management system 100 will be summarized.

  (Process 1) Generation of end parts. For example, the parts manufacturer contacts the manufacturing manager of the finished parts. It should be noted that the communication content of the end part includes at least information that can specify the part, such as a part name, a part number, and a model number, and information on the year in which the part was discontinued.

  (Process 2) The manufacturing manager or operator inputs end part information from the input operation unit 102.

  The processing up to this point is an operation that is performed manually, and the subsequent processing is stockpiling management processing of the end parts automatically performed by the parts stockpiling management system 100 according to the present invention.

  (Process 3) When the end part information is input from the input operation unit 102 in Process 2, the lifetime production number prediction unit 202 of the management control unit 101 refers to the apparatus configuration DB 151 and uses the end part information. And automatically search for packages.

  (Processing 4) The requirement planning unit 201 performs shipment prediction for each device or package searched by the lifetime production number prediction unit 202 until the scheduled production end year of the device, and stores it in the requirement plan DB 153. Note that the processing of the required plan unit 201 may be processed separately and stored in the required plan DB 153 regardless of the occurrence of the end part.

  (Process 5) The lifetime production number prediction unit 202 includes the number of shipments (actual results) for each device or package stored in the shipping history DB 152 and the required number of plans for each device or package stored in the required plan DB 153. And the end-of-manufacturing year of the device by referring to the number of parts used per unit or package (basic unit) stored in the device configuration DB 151 and the end-of-manufacturing year of the device stored in the end-of-device plan DB 154 The required number of parts, the number of reserves, and the planned number of stocks in stock are predicted, and when the number of stocks of end parts is determined, the prediction result is stored in the lifetime production number prediction DB 157.

  The above is the flow of processing when an end part is generated (at the time of planning). Through these series of processes, the required number of parts, the number of stockpile, and the planned stockpile stock quantity as shown in FIG. 2 are obtained.

  Here, if the actual number of parts required does not exceed the predicted number of parts, the number of stocked parts will be delivered until the parts manufacturer finishes the production of the parts. Devices that use parts can be manufactured until the end of manufacturing. For example, in the case of FIG. 2, if the number of packages shipped is as predicted, the scheduled stock quantity of the finished parts in the device production end year 2015 is exactly 0, and can be used up without waste.

  The above-described planning process is a process that is a premise for the storage management of the end parts in each embodiment described below, and is common to each embodiment.

Hereinafter, the process for managing the shortage of stock of the finished parts after planning will be described by taking some embodiments as examples.
(First embodiment)
The parts stockpiling management after the planning of the parts stockpiling management system 100 according to the first embodiment will be described. For example, at the time of planning described in FIG. 2 (beginning of fiscal 2009), the number of stocks of end parts and the planned number of stocks stored in each fiscal year are predicted. However, the actual number of stocks stored may differ depending on the actual results after fiscal 2009. is there. For example, if the actual number of packages shipped exceeds the predicted number of shipments, there will be a shortage of stock of the finished parts.

  Therefore, in the component stockpiling management system 100 according to the first embodiment, the comparison stockpiling unit 203 of the management control unit 101 predicts the planned stockpiling stock number and the stock number (actual result) for each year predicted in FIG. In comparison, a shortage prediction warning is output from the warning unit 204 when there is a shortage of end parts.

  Here, it is assumed that 2925 end parts are stored from the accumulated value of the final year (FY 2015) of the required number of parts for the end parts predicted at the beginning of FY 2009 at the time of planning, and the flow of processing after the planned year We will explain in order. FIG. 3 is a diagram showing an example of the actual number of end-of-year parts stock at the beginning of FY2011. In the actual example of FIG. 3, the actual number of stocks in 2009 was 2075, and the number of stocks in 2010 was 1205. These actual numbers are appropriately managed by the parts inventory quantity updating unit 206 of the management control unit 101 (managed in each embodiment every year), and the parts inventory number held in the parts inventory management DB 155 is updated. Is done.

  The comparison / determination unit 203 of the management control unit 101 compares the planned stock of inventory in fiscal 2009 (2025) predicted in FIG. 2 with the actual stock of each year (2075). As a result, it is understood that the actual stock quantity at the beginning of 2010 is 50 more than the planned stockpiling stock quantity. In other words, the number of shipments of packages using the end parts is 50 fewer. In this case, the comparison / determination unit 203 determines that there is no shortage of end parts, and does not output an alarm from the alarm unit 204. In the present embodiment, for ease of explanation, the shipment number and the production number are assumed to be the same number.

  On the other hand, at the beginning of the next fiscal year 2011, the comparison / determination unit 203 compares the planned stock quantity (1225) in 2010 predicted with FIG. 2 with the actual stock quantity (1205). As a result, it can be seen that the actual number of stocks in fiscal 2010 is 20 less than the planned stock of stocks. In other words, the number of shipments of packages using end parts is 70 more, and the remaining 50 end parts in the previous year are not enough, and 20 more are used. In this case, the comparison / determination unit 203 determines that there is a shortage of end parts, and outputs an alarm from the alarm unit 204.

The alarm output is displayed as an alarm message, for example, on the display unit 103 or the like, and is displayed as "(Device AAA end package a) Component shortage alarm: 2010 (-20 units)". As a result, the manufacturing manager can know that as many as 20 final parts a of the package AAA of the device AAA are used as of the end of 2010. In addition, information such as “the number of stocks in storage = 1205” and “the required number of parts required in the next year (2011) = 541” may be displayed on the display unit 103 together with the warning message. Absent. As a result, the manufacturing manager can confirm that there is no problem in the manufacturing in 2011, although he / she used many 20 in the 2010 fiscal year.
[Flow of processing after planning of the parts stockpiling management system 100 according to the first embodiment]
Here, the flow of processing after the planning of the parts storage management system 100 will be summarized. Note that the subsequent processing is processing that is automatically executed every predetermined period (each year in each embodiment) set in advance according to the program of the management control unit 101.

  (Process 11) The comparison / determination unit 203 includes the end-of-year inventory of the end parts held in the parts inventory management DB 155 and the planned stock of the end parts at the time of planning held in the lifetime production number prediction DB 157. Compare

  (Process 12) The comparison / determination unit 203 has more end-of-year stocks of end parts held in the parts inventory management DB 155 than the planned stock of the end parts at the time of planning held in the lifetime production number prediction DB 157. In this case, an alarm is output from the alarm unit 204.

  The management control unit 101 repeatedly executes the above processes 11 and 12 every predetermined period.

As described above, in the parts stockpiling management system 100 according to the first embodiment, the comparison determination unit 203 of the management control unit 101 calculates the planned stockpiling stock number for each year predicted at the time of planning, the actual stock quantity for each year, Compared periodically (every year in this embodiment), the shortage forecast alarm is output from the alarm unit 204 when the relationship of the planned stock quantity> the inventory quantity (actual result) of each year is satisfied. Since the person can quickly know the situation where the end parts are insufficient, it is possible to consider the response to the design change of the package by the substitute parts with a margin.
(Second Embodiment)
Next, the flow of parts storage management after planning of the parts storage management system 100 according to the second embodiment will be described. In the case of the first embodiment, the warning is simply output that the end parts are insufficient. However, in the parts storage management system 100 according to the second embodiment, the end parts may be insufficient. Alarms can be output for (years).

  For example, FIG. 4 is a diagram used for determining the shortage of storage parts in the part storage management system 100 according to the present embodiment. FIG. 4 shows the end-of-year inventory (actual result) of end parts at the beginning of 2011 (current time) as in FIG.

In FIG. 4, the lifetime production number prediction unit 202 continued to use the end parts with the required number of parts after the fiscal year 2011 of FIG. 2 predicted at the time of planning based on the actual inventory quantity (1205 pieces) in the fiscal year 2010. Recalculate the planned stock of inventory for the closing parts. For example, the planned number of stocks stored in fiscal 2011 at the time of planning in FIG. 2 was 684, but the number of planned stocks in 2011 in FIG. 4 showing the result of recalculation is 664. Similarly, the lifetime production number forecasting unit 202 recalculates the planned stock quantity of the end parts up to 2015. And the comparison determination part 203 discriminate | determines the year when the recalculated scheduled stockpile inventory number becomes negative. For example, the number of stockpiling stocks in 2014 is (+28), but the number of stockpiling stocks in 2015 is (−20), which indicates that it is insufficient. In this case, the comparison / determination unit 203 determines that the shortage of the end part a will occur in 2015, and outputs an alarm from the alarm unit 204. The alarm output is displayed as an alarm message, for example, on the display unit 103 or the like, and is displayed as “(Ending part a of the package AAA of the device AAA) a parts shortage alarm: (−20 pieces in 2015)”. Thereby, the production manager can know that there may be a shortage of 20 end parts a of the package AAA of the device AAA in the 2015 fiscal year.
[Flow of processing after planning of parts stockpiling management system 100 according to the second embodiment]
Here, it summarizes about the flow of the process after the plan of the parts stockpiling management system 100 which concerns on this embodiment. Note that the subsequent processing is processing that is automatically executed every predetermined period (each year in each embodiment) set in advance according to the program of the management control unit 101.

  (Processing 21) The lifetime production number prediction unit 202 includes the end-of-year inventory number of end parts held in the parts inventory management DB 155 and the required number of parts of the end parts at the time of planning held in the lifetime production number prediction DB 157. Are used to recalculate the planned stock of inventory and store it in the lifetime production forecast DB 157.

  (Process 22) The comparison / determination unit 203 outputs an alarm from the alarm unit 204 when there is a year in which the planned number of stocks stored in the lifetime production number prediction DB 157 is negative in the process 21. . At this time, a warning is also output for the fiscal year when the planned stock of inventory changes from positive to negative.

  The management control unit 101 repeatedly executes the above-described processing 21 and processing 22 every predetermined period.

As described above, in the parts stockpiling management system 100 according to the second embodiment, the comparison / determination unit 203 of the management control unit 101 checks the planned stockpiling inventory number for each future year, and the planned stockpiling inventory number becomes negative. When there is a certain year, the warning unit 204 outputs a shortage prediction warning, so the manufacturing manager can quickly know when there is a shortage of end parts and respond to package design changes with alternative parts with a margin. Can be considered. In particular, the parts stockpiling management system 100 according to the present embodiment outputs a warning for a deficient year, so the manufacturing manager can confirm that there is no problem in manufacturing the device package until 2014, so he can respond with peace of mind. Can be considered.
(Third embodiment)
Next, the flow of parts storage management after planning of the parts storage management system 100 according to the third embodiment will be described. In the case of the second embodiment, the number of parts required at the time of planning in FIG. 2 was added to the result of the inventory at the end of the year in FIG. In the component stockpiling management system 100 according to the embodiment, when the alarm is output (in the case of the first and second embodiments, at the beginning of 2011), the actual result of FIG. It is supposed to be. Thereby, prediction with higher accuracy than in the second embodiment is possible, and a more accurate shortage time can be obtained.

  FIG. 5 is a diagram in which the number of parts used in 2010 is added to FIG. For example, the number of used end parts in FY2009 is 850, which is 50 less than the 900 required parts at the time of planning explained in FIG. Similarly, the number of parts used in the last part in fiscal 2010 in FIG. 5 is 870, which is 70 more than the required number of parts at the time of planning explained in FIG.

  In the parts stockpiling management system 100 according to the present embodiment, the lifetime production number prediction unit 202 feeds back the use results of parts and performs the same processing as at the time of planning. Then, the required number of parts of the end parts and the planned stock of inventory are re-predicted. This prediction result is shown in FIG. In FIG. 6, the upper half portion marked (initially planned) is exactly the same as FIG. 1. The result of re-prediction in the present embodiment is the lower half portion marked (after feedback) in FIG. For easy understanding, the actual number of parts used in FIG. 5 is used as the actual number of package shipments without considering the yield. Moreover, the same method as the method demonstrated in FIG. 1 at the time of planning is used for a prediction method. For example, on the basis of the number of shipments in 2005, the ratio with the peak time from 2006 to 2010 is obtained, and the average value of the obtained ratio with the peak time is the predicted ratio for the next fiscal year (0.68) The value obtained by multiplying the number of actual package shipments of 870 in FY2010 is the predicted shipment number (590) after feedback in FY2011. Similarly, the lifetime production number predicting unit 202 predicts the number of shipments in 2012: 374, the number of shipments in 2013: 218, the number of shipments in 2014: 116, the number of shipments in 2015: 56 Can be requested.

  Further, the lifetime production number predicting unit 202 obtains the required number of parts after the feedback and the accumulated value with the basic unit as 1, similarly to the planning time in FIG. Subtract the cumulative value of the required number of parts after feedback for each fiscal year from (2925) and recalculate the planned stock of inventory. For example, in the case of FIG. 6, the number of planned stockpiling stocks in fiscal 2011 is 615, 241 in fiscal 2012, 23 in fiscal 2013, -93 in fiscal 2014, and -149 in fiscal 2015. The lifetime production number prediction unit 202 stores the re-predicted result in the lifetime production number prediction DB 157.

  Next, the comparison / determination unit 203 determines the year in which the recalculated scheduled stockpiling inventory number is negative. For example, in FIG. 6, the planned stock of inventory in 2013 is (+23), but the stock of stock in 2014 is (−93), which indicates that it is insufficient.

In this case, the comparison / determination unit 203 determines that a shortage of end parts will occur in FY2014, and outputs an alarm from the alarm unit 204. The alarm output is displayed as an alarm message, for example, on the display unit 103 or the like, and is displayed as “(Device AAA end of package A a) component shortage alarm: (in 2014) (−93)”. As a result, the manufacturing manager can know that there is a possibility that 93 end components a of the package AAA of the device AAA may be insufficient in the 2014 fiscal year.
[Processing flow after planning of the parts stockpiling management system 100 according to the third embodiment]
Here, it summarizes about the flow of the process after the plan of the parts stockpiling management system 100 which concerns on this embodiment. Note that the subsequent processing is processing that is automatically executed every predetermined period (each year in each embodiment) set in advance according to the program of the management control unit 101.

  (Process 31) The lifetime production number prediction unit 202 obtains the number of parts used and the number of package (PG) shipments from the end-of-year inventory of the last parts held in the parts inventory management DB 155. Note that the value held in the shipment history DB 152 may be used as the number of PG shipment results.

  (Process 32) The lifetime production number predicting unit 202 feeds back the actual number of PG shipments obtained in the process 31, and predicts the number of packages to be shipped, the required number of parts of the end parts, and the accumulated value by the same predetermined method as at the time of planning. And predict the planned stock of the finished parts.

  (Process 33) The comparison / determination unit 203 issues an alarm from the alarm unit 204 when there is a year in which the planned stock quantity after feedback that is re-predicted in the process 32 and held in the lifetime production number prediction DB 157 is negative. Output. At this time, a warning is also output for the fiscal year when the planned stock of inventory changes from positive to negative.

  The management control unit 101 repeatedly executes the processes from the process 31 to the process 33 every predetermined period.

As described above, in the parts stockpiling management system 100 according to the third embodiment, the comparison / determination unit 203 of the management control unit 101 feeds back the result of results, and re-predicts the number of parts required for the finished parts and the planned stockpile stock quantity. Therefore, it is possible to obtain a deficiency time with higher accuracy than in the second embodiment. For example, in the case of the second embodiment of FIG. 4, the shortage period was 2015, but in the case of this embodiment, the future shipment demand is revised upward as a result of reflecting the actual result. Is the year 2014, and it can be seen that there may be a shortage of termination parts one year earlier than in the case of the second embodiment. As a result, the production manager can more accurately know when the end parts are insufficient, and can appropriately cope with a change in the design of the package by the substitute parts.
(Fourth embodiment)
Next, the parts stockpiling management system 100 according to the fourth embodiment will be described. A part stockpiling management system 100 according to the fourth embodiment is partially different from the part stockpiling management system 100 according to each of the first to third embodiments. For example, in the plurality of DBs 104 in FIG. 1, the production result DB 156 is used instead of the component inventory management DB 155, and the production result number update unit 207 is used instead of the component inventory number update unit 206 of the management control unit 101. Note that the production record DB 156 and the production record number update unit 207 may be newly added while the component inventory management DB 155 and the component inventory number update unit 206 shown in FIG.

  As described above, the production result number updating unit 207 counts the number of results for each predetermined period in which the device or package is actually manufactured, and stores it in the production result DB 156. Therefore, the product of the actual production number and the number of the corresponding parts used in one package (unit basis) substantially matches the actual number of parts used. Actually, it is necessary to consider the yield, and the number including the number of parts used in a package discarded as a defective product is the actual number of parts used. Although the number of parts used does not completely match, in the present embodiment, the number of package productions and the number of actual parts used are the same for easy understanding.

  Here, the shipping history DB 152 indicates the quantity of packages shipped from the factory, and does not include product inventory in the factory. For this reason, in reality, the number of packages shipped may differ from the actual number of parts used. Therefore, in the present embodiment, the number of package production records corresponding to the actual component use record is used in the component storage management after planning. However, at the time of planning to stock up the finished parts, as described in FIG. 2, the number of stocks of the finished parts and the planned stock of stocks are obtained using the number actually shipped to the customer (shipment history).

  Hereinafter, the flow of parts storage management after planning of the parts storage management system 100 according to the fourth embodiment will be described with reference to FIG. For example, at the time of planning described in FIG. 2 (beginning of 2009), the number of stocks of end parts and the planned number of stocks in each fiscal year were predicted. There is sex.

  For example, FIG. 7 shows a state in which the current production number DB and the cumulative value of the production results for the fiscal years 2009 and 2010 are held in the production performance DB 156 with the current time as the beginning of 2011.

  Here, in the case of the parts storage management system 100 according to the fourth embodiment, the comparison / determination unit 203 of the management control unit 101 determines the required number of parts (actual value) predicted in FIG. Compared with the actual number, a shortage prediction alarm is output from the alarm unit 204 when the number of actual productions of the package is larger than the predicted required number of parts (actual value). Although the basic unit is 1, when the basic unit is 2, (predicted required number of parts (actual value)) is compared with (the actual number of package productions x basic unit).

  Specifically, the required number of parts (cumulative value) of the final parts in FY2009 predicted at the time of planning in FIG. 2 (beginning of FY2009) is 900, but the actual number of packages produced in FY2009 in FIG. Since the number is 850, the number is reduced by 50, and the comparison / determination unit 203 determines that there is no shortage of end parts and does not output the shortage prediction alarm from the alarm unit 204.

However, the required number of parts (cumulative value) of the ending parts in fiscal 2010 predicted at the time of planning in FIG. 2 is 1700, but since the actual production number (cumulative value) of the package in fiscal 2010 in FIG. The comparison / determination unit 203 determines that there is a possibility of a shortage of end parts, and outputs a shortage prediction alarm from the alarm unit 204.
[Processing Flow after Planning of Parts Stockpiling Management System 100 According to Fourth Embodiment]
Here, it summarizes about the flow of the process after the plan of the parts stockpiling management system 100 which concerns on this embodiment. Note that the subsequent processing is processing that is automatically executed every predetermined period (each year in each embodiment) set in advance according to the program of the management control unit 101.

  (Processing 41) The comparison / determination unit 203 calculates a value obtained by multiplying the cumulative value of the number of actual productions of the package held in the production performance DB 156 by the basic unit of the final parts, and the component requirements of the final parts predicted for each year at the time of planning. Compare the cumulative number. When the cumulative value of the actual number of package productions multiplied by the basic unit of the finished parts is greater than the cumulative value of the required number of finished parts for each fiscal year predicted at the time of planning, an alarm is output from the warning unit 204. .

  It is assumed that the production record number update unit 207 updates the value of the production record DB 156 as appropriate.

As described above, in the parts stockpiling management system 100 according to the fourth embodiment, the comparison / determination unit 203 of the management control unit 101 determines the required number of parts (cumulative value) for each year predicted at the time of planning and the actual number of packages produced. The value obtained by multiplying the (cumulative value) by the basic unit is compared at any time or periodically (every year in this embodiment), and (the predicted number of parts required in each year (cumulative value)) <(package production) When the relationship of the number of achievements (cumulative value) x basic unit) is satisfied, a shortage prediction warning is output from the alarm unit 204, so that the manufacturing manager can quickly know that there is a shortage of end parts. It is possible to consider the response to package design changes due to alternative parts. In particular, in the present embodiment, since the number of production records of the package corresponding to the actual use record of the parts is used in the parts storage management after the plan, the inventory management of the end parts can be performed with higher accuracy.
(Fifth embodiment)
Next, the flow of parts storage management after planning of the parts storage management system 100 according to the fifth embodiment will be described. In the case of the previous fourth embodiment, the warning is simply output that there is a shortage of end parts, but in the part stockpiling management system 100 according to the fifth embodiment, there is a possibility that the end parts will be short. A warning is also output for a certain period (year).

  For example, FIG. 8 is a diagram used for determining the shortage of storage parts in the parts storage management system 100 according to the present embodiment. In addition, FIG. 8 shows the thing of the beginning of 2011 (current time) similarly to FIG. In FIG. 8, the lifetime production number prediction unit 202 uses the number of packages produced in FY 2010 (cumulative value) (1720 sheets) as a reference, and the required number (cumulative number) of packages after FY 2011 in FIG. Value) to determine the cumulative value of (number of actual productions + future required number) of the package. Then, the comparison / determination unit 203 determines the year in which the cumulative value of the calculated number of packages (the actual production number + the required number in the future) is larger than the predicted package required number (cumulative value) in the device manufacturing end year. For example, since the cumulative value (2897 pieces) of (the actual production number + the required number in the future) in FY2014 is smaller than the cumulative value (2925 pieces) of the predicted package required number in FY2015 (the year of device manufacturing end), 2014 The comparison determination unit 203 determines that there is no shortage at the time of the fiscal year.

However, the cumulative value (2945 sheets) of (number of actual productions + required number in the future) in fiscal 2015 is larger than the cumulative value (2925 sheets) of the predicted required number of packages in fiscal year 2015 (end of device manufacturing). For this reason, the comparison / determination unit 203 determines that a shortage of end parts will occur in 2015, and outputs an alarm from the alarm unit 204. The alarm output is displayed as an alarm message, for example, on the display unit 103 or the like, and is displayed as “(Ending part a of the package AAA of the device AAA) a parts shortage alarm: (−20 pieces in 2015)”. Thereby, the production manager can know that there may be a shortage of 20 end parts a of the package AAA of the device AAA in the 2015 fiscal year.
[Processing Flow after Planning of Parts Stockpiling Management System 100 according to Fifth Embodiment]
Here, it summarizes about the flow of the process after the plan of the parts stockpiling management system 100 which concerns on this embodiment. Note that the subsequent processing is processing that is automatically executed every predetermined period (each year in each embodiment) set in advance according to the program of the management control unit 101.

  (Process 51) The comparison / determination unit 203 refers to the production result DB 156 and adds the required number of packages after the present time obtained at the time of planning to the production result number and the cumulative value of the latest package determined at the present time. Recalculate the required number of packages for each future year. Then, it is determined whether or not there is a year in which the recalculated required number of future packages is larger than the cumulative value of the required number of packages in the manufacturing end year (2015). If there is a year that is greater than the cumulative value of the required number of packages in the year when the manufacturing is finished, an alarm is output from the alarm unit 204 together with information on the year when the stockpile shortage alarm for the end parts is insufficient.

  It is assumed that the production record number update unit 207 updates the value of the production record DB 156 as appropriate.

In this way, in the parts stockpiling management system 100 according to the fifth embodiment, the comparison / determination unit 203 of the management control unit 101 confirms the number of package production results for each future year, and (the number of package production results). Since the alarm unit 204 outputs a shortage prediction warning when there is a year in which the cumulative value of (the required number in the future) is greater than the predicted package required number (cumulative value) in the year when the device is finished manufacturing, the manufacturing manager It is possible to quickly know the shortage, and to consider the response to the design change of the package with alternative parts with a margin. In particular, in the present embodiment, since the number of production records of the package corresponding to the actual use record of the parts is used in the parts storage management after the plan, the inventory management of the end parts can be performed with higher accuracy.
(Sixth embodiment)
Next, the flow of parts storage management after planning of the parts storage management system 100 according to the sixth embodiment will be described. In the case of the fourth and fifth embodiments, the shortage of stock of finished parts is managed using the number of actual productions of the package and the required number of packages, but the parts stock management according to the sixth embodiment In the system 100, when the alarm is output (in the case of the fourth and fifth embodiments, at the beginning of 2011), the result of FIG. 7 is fed back and the required number of parts is recalculated, compared with the fifth embodiment. It is now possible to find a highly accurate shortage period. Note that the present embodiment is based on the same concept as the third embodiment.

  FIG. 9 is a diagram in which the number of component use results is added based on the number of package (PG) production results of FIG. The basic unit of parts is 1. For example, the number of used end parts in FY2009 is 850, which is 50 less than the 900 required parts at the time of planning explained in FIG. Similarly, the number of parts used in the end parts in fiscal 2010 in FIG. 9 is 870, which is 70 more than the required number of parts at the time of planning explained in FIG.

  In the parts stockpiling management system 100 according to the present embodiment, the lifetime production number prediction unit 202 feeds back the number of PG production results and performs the same processing as at the time of planning, and the required number of parts until the device or package manufacturing end year. Re-predict the number of planned stocks. The prediction result is shown in FIG. In FIG. 10, the upper half portion (initially planned) is exactly the same as FIG. The result of re-prediction in the present embodiment is the lower half portion marked (after feedback) in FIG. Further, the prediction method is the same as the method described in FIG. 1 at the time of planning. In the example of this embodiment, the re-prediction result uses the same numerical values as those in FIG. 6 described in the third embodiment. It is the same value as 6 (after feedback). That is, the lifetime production number predicting unit 202 predicts the number of shipments in 2011: 590, the number of shipments in 2012: 374, the number of shipments in 2013: 218, the number of shipments in 2014: 116, Estimated number of shipments in 2015: The estimated number of shipments of packages in each year is obtained as 56.

  Further, the lifetime production number prediction unit 202 obtains the required number of parts and the cumulative value by setting the basic unit of the finished parts as 1, and after the feedback of each year from the number of finished parts stocked (2925 pieces) stored in the warehouse determined at the time of planning. Subtract the cumulative value of the required number of parts and recalculate the planned stock of inventory. For example, in the case of FIG. 10, the number of planned stockpiling stocks in fiscal 2011 is 615, 241 in fiscal 2012, 23 in fiscal 2013, -93 in fiscal 2014, and -149 in fiscal 2015. The lifetime production number prediction unit 202 stores the re-predicted result in the lifetime production number prediction DB 157.

  Next, the comparison / determination unit 203 determines the year in which the recalculated scheduled stockpiling inventory number is negative. For example, in FIG. 10, the planned number of stocks stored in 2013 is (+23), but the number of planned stocks stored in 2014 is (−93), which is insufficient.

In this case, the comparison / determination unit 203 determines that a shortage of end parts will occur in FY2014, and outputs an alarm from the alarm unit 204. The alarm output is displayed as an alarm message, for example, on the display unit 103 or the like, and is displayed as “(Device AAA end of package A a) component shortage alarm: (in 2014) (−93)”. As a result, the manufacturing manager can know that there is a possibility that 93 end components a of the package AAA of the device AAA may be insufficient in the 2014 fiscal year.
[Processing Flow after Planning of Parts Stockpiling Management System 100 According to Sixth Embodiment]
Here, it summarizes about the flow of the process after the plan of the parts stockpiling management system 100 which concerns on this embodiment. Note that the subsequent processing is processing that is automatically executed every predetermined period (each year in each embodiment) set in advance according to the program of the management control unit 101.

  (Processing 61) The lifetime production number prediction unit 202 feeds back the number of package (PG) production results held in the production result DB 156, and predicts the number of packages to be shipped and the parts of the end parts by the same predetermined method as at the time of planning. The required number and its accumulated value are obtained, and the planned stock quantity of the end parts is predicted.

  (Processing 62) The comparison / determination unit 203 issues an alarm from the alarming unit 204 when there is a year in which the planned stock quantity after feedback that is re-predicted in the process 61 and held in the lifetime production number prediction DB 157 is negative. Output. At this time, a warning is also output for the fiscal year when the planned stock of inventory changes from positive to negative.

  The management control unit 101 repeatedly executes the above-described processing 61 and processing 62 every predetermined period.

Thus, in the parts stockpiling management system 100 according to the sixth embodiment, the comparison / determination unit 203 of the management control unit 101 feeds back the result of results and recalculates the required number of parts, so that the fifth embodiment It is possible to obtain a deficiency period with higher accuracy. For example, in the case of the fifth embodiment of FIG. 8, the shortage period was 2015, but in the case of this embodiment, the future shipment demand is revised upward to reflect the actual result, so the shortage period is 2014. Thus, it can be seen that there may be a shortage of termination parts one year earlier than in the case of the fifth embodiment. As a result, the production manager can more accurately know when the end parts are insufficient, and can appropriately cope with a change in the design of the package by the substitute parts.
(Seventh embodiment)
Next, the flow of component storage management of the component storage management system 100 according to the seventh embodiment will be described. In the case of the first to sixth embodiments, the case where the end component is used for only one package has been described. However, the component storage management system 100 according to this embodiment uses the end component for a plurality of packages. Stockpiling can be managed even if it is done. For ease of understanding in the present embodiment, a case where it is used in two devices (two packages) will be described.

  Here, it is assumed that the termination part a is used for the AA package of the device AAA and the BB package of the device BBB. Then, for each package, as explained in FIG. 2, the required number of parts, the number of stocks and the number of planned stocks until the year when the device is finished are predicted using a predetermined method, and when stockpiling is confirmed. Are stored in the lifetime production number prediction DB 157. The result is shown in FIG. For easy understanding, the predicted number of the package AA in FIG. 11 is the same as that in FIG. Further, since the basic unit of the ending component of the package AA is 1, the basic unit of the ending component of the package BB is 2, so each numerical value of the package BB is twice that of the package AA. .

  In this embodiment, the total number of parts required, the number of stockpiles, and the number of planned stockpiles for all packages that use the same end part a in the factory are obtained, and the number of stockpiles for the parts is determined. For example, in FIG. 11, the number of stocks required for the closing part a of the package AA is 2925, and the number of stocks required for the closing part a of the package BB is doubled to 5850, so the total number of stocks is 8775. . Similarly, the required number of parts of the package BB and the planned stock of inventory are twice as much as in the case of FIG.

  In this way, the total number of parts required, the number of stockpiles, and the number of planned stockpiles for all packages that use the same end part a in the factory are predicted, and the prediction results at the time when the stockpile is finalized Save in the production number prediction DB 157.

  The above is the process at the time of planning.

  Next, the flow of parts storage management after planning of the parts storage management system 100 according to the seventh embodiment will be described. Here, assuming that 8775 end parts are stored from the required number of end parts predicted at the beginning of fiscal 2009 at the time of planning in FIG. FIG. 12 is a diagram showing an example of the actual number of finished parts at the end of the fiscal year at the beginning of 2011. In the actual example of FIG. 12, the actual number of stocks at the end of the fiscal year in 2009 was 6125, and the number of stocks in the fiscal year 2010 was 3655.

  The comparison determination unit 203 of the management control unit 101 compares the planned stock of inventory in fiscal 2009 (6075) predicted in FIG. 11 with the actual stock of the end of year (6125) in FIG. As a result, it can be seen that the actual number of stocks as of fiscal 2009 is 50 more than the planned stock of stocks. In other words, the number of shipments of packages using the end parts is 50 fewer. In this case, the comparison / determination unit 203 determines that there is no shortage of end parts, and does not output an alarm from the alarm unit 204. In the present embodiment, for ease of explanation, the shipment number and the production number are assumed to be the same number.

  On the other hand, at the beginning of the next fiscal year 2011, the comparison / determination unit 203 also compares the planned stock of inventory in fiscal 2010 (3675) predicted in FIG. 11 with the actual end-of-year stock in FIG. 12 (3655). . As a result, it can be seen that the actual number of stocks as of fiscal 2010 is 20 less than the planned stock of stocks. That is, the number of shipments of packages using the end parts is increased by 20. In this case, the comparison / determination unit 203 determines that there is a shortage of end parts, and outputs an alarm from the alarm unit 204. For example, the alarm output is displayed as an alarm message on the display unit 103 or the like, and is displayed as “(End component a of package AA and package BB) Component shortage alarm: 2010 (−20)”. As a result, the manufacturing manager can know that as many as 20 final parts a used for the package AA and the package BB are used as of the end of FY2010.

  As described above, in the parts stockpiling management system 100 according to the seventh embodiment, the comparison determination unit 203 of the management control unit 101 calculates the total stockpiling stock number of all packages for each year predicted at the time of planning, Compared with the number of inventory in the fiscal year (every year in this embodiment), if the relationship of the total planned stock of all packages> the number of inventory in each year (actual result) is satisfied, from the alarm unit 204 Since the shortage prediction warning is output, the manufacturing manager can quickly know the situation where the end parts are insufficient, and can consider the response to the design change of the substitute parts with a margin.

However, in the above case, the excess or deficiency for each package cannot be known. Next, an example of determining for each package will be described.
(Modification of the seventh embodiment)
The seventh embodiment is an example of a parts stockpiling management system that performs stockpile management of the ending parts in the configuration shown in FIG. 1, but, similarly to the fourth embodiment depicted in FIG. 7, for each package. It is possible to carry out stockpile management of the end parts using the number of production results. A modification of the seventh embodiment will be described.

  FIG. 13 shows an example of the number of production results for each package. In FIG. 13, the production results of the package AAA of the device AAA and the production results of the package BB of the device BBB in 2009 are 850 and 900, respectively. Similarly, the production results of the package AAA of the device AAA and the production results of the package BB of the device BBB in 2010 are 870 and 775, respectively.

  Here, the comparison determination unit 203 compares the value in FIG. 13 with the required number and required number (cumulative value) of the package at the time of planning in FIG. 11. The number of packages AA is higher than the required number in fiscal 2010: 800, so the number of production is 870. In addition, the cumulative value is 1,720 production results (cumulative value) with respect to the required number (cumulative value) of 1,700, which exceeds the actual result. That is, it can be said that the package AA uses the parts stored for the package BB.

In such a state, the comparison determination unit 203 obtains the required number (cumulative value) in FIG. 11 held in the lifetime production prediction DB 156 and the production result number (cumulative value) held in the production result DB 156. Compare. Then, since the number of production results exceeds, it is determined that there is a shortage of stockpiling, and a shortage of stockpiling alarm is output from the warning unit 204. By carrying out this for each individual package, even if there is no problem with the total number of stockpile, if any one package exceeds the forecast, a shortage stockpile warning for the end part is output. As a result, compared to managing the planned stock of all packages, the manufacturing manager can grasp the situation where the end parts are insufficient more quickly, and can respond to package design changes using alternative parts with a margin. Can be considered.
(Eighth embodiment)
Next, a parts stockpiling management system 100 according to the eighth embodiment will be described with reference to FIG. The parts stockpiling management system 100 according to the eighth embodiment uses the number of required plans used at the beginning of 2009 (planned time) and the latest number of required plans at the beginning of 2011 (currently). Thus, the ratio of the peak time and the predicted ratio are obtained, and the predicted shipment number is recalculated. Therefore, it is possible to output a stockpile shortage alarm for the end part with higher accuracy than in the case of FIG.

  In FIG. 14, since the required number of plans in fiscal 2011 is 600, the ratio with the peak time (fiscal 2005) is 600 / 1600≈0.38. Similarly, since the required number of plans in fiscal 2012 is 450, the ratio with the peak time Is 0.28. Then, as described with reference to FIG. 2, the estimated shipment quantity after FY2013 is calculated by calculating the average value of the ratio with the past peak time as the forecast ratio and multiplying it by the required planned quantity or the estimated shipment quantity in the previous year. Can be sought. For example, since the forecast ratio for 2013 is 0.59 (the average ratio from the peak period from 2005 to 2012) and the required number of plans for the previous year is 450, the estimated shipment in 2013 is 265. It becomes. Furthermore, since the predicted ratio in FY2014 (average value of the ratio from the peak in FY2005 to FY2013) is 0.54 and the predicted shipment quantity in the previous year is 265, the estimated shipment quantity in FY2014 is 144. It becomes a sheet. Similarly, the predicted ratio in 2015 is the average ratio of the ratio from the peak period from 2005 to 2014 and is 0.50, and the predicted number shipped in the previous year is 144. 71 sheets.

  From these results, the required number of packages (PG required number) from 2011 to 2015 is 600, 450, 265, 144, 71 in order of year. From these required PG numbers for each year, as shown in FIG. 14, cumulative values are obtained for the required PG numbers in the order of 600, 1050, 1315, 1459, 1530.

  Further, when the basic unit of the end parts used in the package is 1, the required number of parts and the accumulated value of the end parts in each year are the same as the required number of PG and the accumulated value thereof. Note that the number of stocks of end parts is 2,925 secured at the beginning of fiscal 2009 at the time of planning, as in FIG.

  Here, the lifetime production predicting unit 202 recalculates what the planned stock of stocks in and after 2011 will be based on the required number of parts recalculated in FIG. This prediction result is shown in FIG. FIG. 15 shows that the number of stocks of end parts secured at the time of planning at the beginning of 2009 is 2,925, and the end-of-year inventory figures for FY2009 and FY2010 are 2075 and 1205 respectively. Since the number is determined by the number of units, the planned stock of inventory in 2011 is 605, which is 1205 minus the required number of parts in 2011 from 600. Similarly, the lifetime production prediction unit 202 calculates the number of planned stockpiling stocks from 2012 to 2015, and becomes 155, −110, −254, and −325 in order of year. This result is held in the lifetime production number prediction DB 157.

  Furthermore, the comparison determination unit 203 refers to the lifetime production number prediction DB 157 that holds the number of planned stocks that are recalculated by the lifetime production prediction unit 202, and determines the year in which the number of planned stocks is negative. Then, a shortage alarm is output from the alarm unit 204. For example, in FIG. 15, it can be seen that the planned stock of inventory in FY2012 is 155 plus, but the planned stock of inventory in 2013 turns to −110 minus. Output stockpile shortage warning. The alarm output is displayed as an alarm message, for example, on the display unit 103 or the like, and is displayed as “(End component a of the package AAA of the device AAA) component shortage alarm: (-110) in 2013”. Thereby, the manufacturing manager can know that there may be a shortage of 110 end parts a of the package AAA of the device AAA in FY2014.

  Thus, in the parts stockpiling management system 100 according to the eighth embodiment, the comparison judgment unit 203 of the management control unit 101 recalculates the planned stockpiling inventory number using the latest required plan. It is possible to obtain a shortage period with higher accuracy than the seventh embodiment. As a result, the production manager can more accurately know when the end parts are insufficient, and can appropriately cope with a change in the design of the package by the substitute parts.

In this embodiment, the basic numerical values are the same as those used in the first to seventh embodiments, but in FIG. 14, the number of packages shipped in 2010 is 865. On the other hand, the number of actual use of the end parts shown in FIG. Since the basic unit of the finished parts is 1, the number of used finished parts should be consistent with the number of packages shipped, but FIG. 14 intentionally shows that the production yield may not match. An example is shown in which the number of packages shipped is reduced by five. As described above, in each embodiment, a value considering the yield may be used. In this case, for example, the lifetime production number prediction unit 202 obtains the required number of parts including the yield when obtaining the required number of parts from the required number of required number packages. For example, in FIG. 14, the required number of packages in fiscal 2011 is 600, so if the yield is 1%, the required number of parts is 606.
(Ninth embodiment)
Next, a parts stockpiling management system 100a according to a ninth embodiment will be described with reference to FIG. The parts storage management system 100a according to the ninth embodiment is different in the configuration of the plurality of DBs 104 and the management control unit 101 of the parts storage management system 100 of FIG. 1 according to the first to eighth embodiments. For example, in FIG. 16, an alternative design DB 158 is added to the plurality of DBs 104a in FIG. Further, the management control unit 101a has an alternative design prediction unit 208 added to the management control unit 101 of FIG. 1 denote the same components as those in FIG. Similarly to the case of FIG. 1, at least one of the parts inventory management DB 155 and the parts inventory number update unit 206, the production results DB 156, and the production results number update unit 207 may be arranged. The procedure for determining the deficiency uses the same method as in the first to eighth embodiments. The ninth embodiment is characterized in that a shortage of stockpile is determined and an alarm is output, and an alternative design cost is predicted.

  In particular, the component storage management system 100a according to the present embodiment obtains alternative design costs for each package and outputs the alternative design costs in conjunction with the alarm output when the same end component is used for a plurality of packages. Can do. As a result, the manufacturing manager can determine which package is suitable for alternative design.

  In FIG. 16, the alternative design DB 158 shows the application period and application of the redesigned product when the alternative design cost for each package and the alternative design of each package are used when the same termination part is used for a plurality of packages. Information such as the number of units to be started (how many units will be applied after the redesigned product) is retained. Information regarding these alternative designs is calculated for each package using the same end component by the alternative design prediction unit 208 of the management control unit 101a. For example, the alternative design cost is stored in advance in the alternative design DB 158 in advance as a predetermined alternative design cost determined in advance for each use location or each part in the package. The alternative design DB 158 is referred to according to the use location of the end part. Alternatively, the operator may input from the input operation unit 102.

  Next, an example when the required number is reviewed when the same termination component a is used for a plurality of packages (the package AA of the device AAA and the package BB of the device BBB) will be described. For example, it is assumed that the required number of packages AA and package BB at the time of planning (early 2009), the required number of stocked parts a, the number of stockpiles, and the number of planned stockpiles are the same as those shown in FIG. And the result of having reviewed the required number of each package in the beginning of 2011 is shown in FIG. The difference between FIG. 11 and FIG. 17 is that the required number in 2011 for package AA has been revised from 541 to 701, and that for package BB has been revised from 339 to 350 in 2012. is there. The number of packages required for other fiscal years shall remain unchanged. These data are held in the lifetime production number DB 157.

  In the package AA of FIG. 17, since the required number of parts in 2011 has increased from 541 at the time of planning to 701, the number of reserves does not change, so the planned number of stocks in stock is insufficient. For example, the planned stock of inventory of package AA in FY2012 is 185, which is positive, but the planned stock of inventory in 2013 is -10, which is negative. That is, the package AA has a shortage of end parts in 2013.

  On the other hand, in the package BB of FIG. 17, the required number of parts in fiscal 2012 has increased from 339 at the time of planning to 350, so that the number of stockpile 5850 does not change, so the planned stockpile inventory number is insufficient. For example, the planned number of stocks stored in package BB in fiscal 2014 is 74, which is positive, but the number of planned stocks stored in fiscal 2015 is -22, which is negative. That is, the package BB has a shortage of end parts in 2015.

  Furthermore, in the total of package AA and package BB in FIG. 17, the required number of parts in 2011 has increased from 1623 at the time of planning to 1783, and the required number of parts in 2012 has increased from 1019 to 1039 at the time of planning. By increasing each, the number of stockpile 5850 does not change, so the planned stockpile number is insufficient. For example, the number of planned stocks in the end part a in 2013 is 268, which is positive, but the number of planned stocks in 2014 is -38, which is negative. That is, in the total of package AA and package BB, the number of end parts is insufficient in FY2014.

  In the above case, the comparison / determination unit 203 outputs an alarm from the alarm unit 204 that the package AA is insufficient in FY2013, and outputs an alarm from the alarm unit 204 that the package BB is insufficient in FY2015. Alternatively, by sharing the stockpile of the package AA and the package BB that use the same end part a, the alarm unit 204 outputs an alarm that the end part a is insufficient in 2014.

[In case of alternative design]
Next, a case where an alternative design of the package AA or the package BB is performed will be described. FIG. 18 is a diagram showing an example of redesign verification, and is a verification example when redesigning the package AA of the device AAA. The verification is performed by the alternative design predicting unit 208. In FIG. 17 described above, the required number of the package AAA of the device AAA is gradually reduced from the one close to the production end year (2015), and the total column. Confirm whether the planned stockpiling stock quantity of 2015 will be 0 (or plus). Then, the required number of packages AA in the year when the planned stock quantity in fiscal 2015 in the total column becomes 0 (or plus) is set as the last package using the closing part a, and the remaining packages in the current year The required number and the required number of packages after the next fiscal year are manufactured and shipped after redesign of the package AA without using the final part a.

  For example, when the required number of packages AA of the device AAA in FIG. 17 is sequentially reduced from 48 sheets in the production end year (2015), and the planned stock quantity in FY2015 in the total column becomes 0 (or plus) The year and required number of the package AA are calculated. FIG. 18 shows the required number of packages AA when the planned stock of stock in FY2015 in the total column becomes zero. In FIG. 18, the required number of packages AA is 0 in FY2015 and 2014, and when the required number in FY2013 is 163 from the original plan of 195, the planned stock of inventory in FY2015 is 0. It turns out that it becomes a piece. The alternative design prediction unit 208 stores these prediction results in the alternative design DB 158.

  On the other hand, the comparison determination unit 203 refers to the prediction result of the alternative design stored in the alternative design DB 158 and can apply the package AA of the alternative design product that does not use the ending component a from the 164th and subsequent manufacturing shipments in FY2013. Judge that it should be. That is, the switching year of the package AA is 2013, and a redesign period can be secured for 2 years or more.

  Next, a case where an alternative design of the package BB is performed will be described. FIG. 19 shows a verification example in the case of redesigning the package BB of the device BBB as an example of redesign verification. As in the case of FIG. 18, the verification is performed by the alternative design predicting unit 208. In FIG. 17 described above, the required number of the package BB of the device BBB is calculated from the one closer to the production end year (2015). Decrease it little by little, and check whether the number of planned stocks in FY2015 in the total column will be zero (or plus). Then, the required number of packages BB in the year when the planned stock inventories in FY2015 in the total column becomes 0 (or plus) is set as the last package using the closing part a, and the remaining packages in the current year As for the required number and the required number of packages after the next fiscal year, a redesigned package BB that does not use the final part a is manufactured and shipped.

  For example, when the required number of packages BB of the device BBB in FIG. 17 is sequentially reduced from 48 sheets in the production end year (FY2015), the planned stock quantity in FY2015 in the total column becomes 0 (or plus) The year of the package BB and the required number are calculated. FIG. 19 shows the required number of packages BB when the planned number of stocks stored in FY2015 in the total column becomes zero. In FIG. 19, the required number of packages BB is 0 in FY2015, and when the required number in FY2014 is reduced from the original 102 to 59, the total stock inventory in FY2015 will be zero. I understand that. The alternative design prediction unit 208 stores these prediction results in the alternative design DB 158.

  On the other hand, with reference to the alternative design prediction result stored in the alternative design DB 158, the comparison / determination unit 203 applies the alternative design product package BB that does not use the final part a from the 60th and subsequent production shipments in FY2014. Judge that it should be. That is, the switching year of the package BB is 2014, and a redesign period can be secured for 3 years or more.

  When the same end parts are used for multiple packages in this way, when a shortage of end parts is detected, a redesign prediction is made for each package. You can ask when. Further, when the comparison / determination unit 203 outputs an alarm from the alarm unit 204, the result is output together with the redesign result obtained by the alternative design prediction unit 208 and the cost for the redesign. An example of this output is shown in FIG. FIG. 20 is a diagram showing a redesign result output to the screen of the display unit 103 or a separately prepared printer. When the package AA of the device AAA is redesigned for the end part a, the 164th unit in FY2013 is shown. It can be seen that the redesigned package is shipped from the subsequent shipment, and the redesign cost at that time is 3 million yen. Similarly, when the package BB of the device BBB is redesigned, it can be seen that the redesigned package is shipped from the 60th and subsequent shipments in 2014, and the redesign cost at that time is 2 million yen. Recognize. The production manager can determine which package should be redesigned by looking at these output results. For example, in the case of the package BB, the redesign period is longer than that of the package AA, and the redesign cost is lower than that of the package AA. Therefore, it is understood that it is more appropriate to redesign the package BB.

  Here, in the conventional case, the department in charge of the package AAA of the device AAA reviews the redesign of the package AA when the required number of the package AA of the device AAA is reviewed, and if the required plan cannot be reviewed, the package AA A redesign was in progress. On the other hand, when the required number of packages BB of the device BBB was reviewed, the department in charge of the package BB of the device BBB examined the redesign of the package BB, and when the required plan could not be reviewed, the package BB was redesigned . In this way, when the departments in charge are different, cooperation was not achieved even though the same termination parts were used.

  On the other hand, in the case of the component stockpiling management system 100a according to the present embodiment, since the package AAA of the device AAA and the package BB of the device BBB using the same type of component are verified together, the package AA of the device AAA is used. The person in charge and the person in charge of the package BB of the device BBB can mutually confirm the verification result and make an alternative design proposal, and the optimum selection can be made by mutual discussion. For example, in the above example, it can be determined that it is advantageous to redesign the package BB of the device BBB in terms of both cost and design period. In the conventional case, both departments spend 5 million yen in the worst case. The place that must be done can be redesigned at a cost of 2 million yen, resulting in a cost saving of 3 million yen.

  Actually, it is necessary to comprehensively evaluate and judge various related items such as a cost-effective comparative study by design change of alternative parts. In addition, it is necessary to reduce the cost required for stockpiling as much as possible, and it is also necessary to determine which one of the stockpiling of parts and the design change by alternative parts is cheaper.

  Thus, in the parts stockpiling management system and the parts stockpiling management method according to the present invention, when the parts used in the device being manufactured are declared to end and the equipment is being manufactured using the stockpiled parts, It is possible to predict the shortage of the stockpile parts as early as possible to avoid the depletion of the stockpile parts and to secure time for redesign so that the end parts are not used. Furthermore, even if the same termination part is used for a plurality of packages, it is possible to easily determine which package is appropriate for redesign.

  As described above, the parts stockpiling management system according to the present invention has been described with reference to the embodiments, but can be implemented in various other forms without departing from the spirit or the main features thereof. For this reason, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The present invention is defined by the claims, and the present invention is not limited to the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

100, 100a ... parts stock management system 101, 101a ... management control unit 102 ... input operation unit 103 ... display unit 104, 104a ... multiple DBs
151... Device configuration DB
152 ... Shipping history DB
153 ... Required plan DB
154 ... Device termination plan DB
155 ... Parts inventory management DB
156 ... Production results DB
157 ... Lifetime production forecast DB
158 ... Alternative design cost DB
201 ... Required planning unit 202 ... Lifetime production number prediction unit 203 ... Comparison determination unit 204 ... Alarm unit 205 ... Shipping history update unit 206 ... Parts inventory quantity update unit 207 ... Production result number update unit 208 ... alternative design prediction unit

Claims (20)

In the parts stockpiling management system that detects the stockpile shortage of parts used in the equipment produced in the factory,
A device configuration DB for storing component data used for each device or for each package constituting a hardware circuit for each function;
A shipping history DB for storing shipping history data of devices delivered to customers in the past;
Requirement plan DB that stores the requirement plan data of the device or package including the number of orders,
Device termination plan DB for storing device production termination plan data;
According to the information of the end parts input from the outside, referring to the device configuration DB, the shipping history DB, the required plan DB, and the device end plan DB, the number of stocks of the end parts is confirmed, and the future Lifetime production number prediction unit that calculates the required number of parts, and calculates the number of stockpiled stocks from the number of stockpiles and the required number of parts,
A lifetime production number prediction DB for storing the number of stockpiling, the required number of parts, and the planned stockpiling stock number calculated by the lifetime production number prediction unit;
A parts inventory management DB for storing the actual inventory quantity of the end parts;
A comparison / determination unit that compares the actual inventory quantity stored in the parts inventory management DB with the planned stock inventory quantity stored in the lifetime production quantity prediction DB at any time or every predetermined period to determine the shortage of end parts. When,
A parts stockpiling management system, comprising: an alarm section for issuing a stockpile shortage prediction alarm when the comparison judgment section judges the shortage of end parts. In the parts stockpiling management system according to claim 1,
The comparison / determination unit compares the actual inventory quantity stored in the parts inventory management DB with the planned reserve inventory quantity stored in the lifetime production quantity prediction DB at any time or every predetermined period, To calculate
The parts storage management system, wherein the warning section issues a storage shortage prediction warning including the shortage period of the end parts calculated by the comparison determination section. In the parts stockpiling management system according to claim 1,
An inventory fluctuation update unit is further provided for calculating the usage results of parts from the inventory fluctuation status for each predetermined period and updating the parts inventory management DB,
The lifetime production number prediction unit re-predicts the required number of parts of the end parts every time the parts inventory management DB is updated, and from the re-predicted number of required parts and the stock number of the final parts determined first, A stockpile management system that recalculates the planned stockpile stock quantity. In the parts stockpiling management system that detects the stockpile shortage of parts used in the equipment produced in the factory,
A device configuration DB for storing component data used for each device or for each package constituting a hardware circuit for each function;
A shipping history DB for storing shipping history data of devices delivered to customers in the past;
Requirement plan DB that stores the requirement plan data of the device or package including the number of orders,
Device termination plan DB for storing device production termination plan data;
In accordance with the information on the end parts input from the outside, referring to the apparatus configuration DB, the shipping history DB, the requirement plan DB, and the apparatus end plan DB, the future required number of packages using the end parts is determined. A lifetime production number forecasting unit to calculate,
A lifetime production number prediction DB for storing the required number of packages calculated by the lifetime production number prediction unit;
Package production results DB that stores package production results;
At any time or every predetermined period, the production record stored in the package production record DB is compared with the required number of packages stored in the lifetime production number forecast DB to determine the shortage of end parts due to the excess or shortage of production. A comparison / determination unit,
A parts stockpiling management system, comprising: a warning section that issues a stockpile shortage prediction alarm when the comparison judgment section judges that there are insufficient end parts. In the parts stockpiling management system according to claim 4,
The comparison / determination unit compares the production results stored in the package production result DB with the required number of packages stored in the lifetime production number prediction DB at any time or every predetermined period, and the excess or deficiency in the number of package productions. Calculate the shortage period of end parts from
The parts storage management system, wherein the warning section issues a storage shortage prediction warning including the shortage period of the end parts calculated by the comparison determination section. In the parts stockpiling management system according to claim 4,
A parts inventory management DB is also provided to store the inventory quantity of finished parts .
The lifetime production number predicting unit, in addition to calculating the required number of future packages of the device that uses the end parts, finalizing the number of stocks of the end parts, calculating the required number of future parts, Calculate the planned stock of the future stock from the required number of parts,
The lifetime production number prediction DB stores the required number of the package calculated by the lifetime production number prediction unit, the reserve number, the required number of parts, and the planned reserve stock number,
A component usage record calculation unit for calculating a component use record from the production record status for each predetermined period of the package production record DB;
The lifetime production number forecasting unit obtains the actual use from the number of inventory of the finished parts stored in the parts inventory management DB, re-predicts the number of parts required for the finished parts, and first determines the re-estimated number of parts required. Recalculate the future planned stock of inventory from the number of stock of finished parts,
The comparison / determination unit compares the actual inventory number stored in the parts inventory management DB with the planned reserve inventory number stored in the lifetime production number prediction DB at any time or every predetermined period, and determines the shortage of end parts. A parts stockpiling management system characterized by judging. In the parts stockpiling management system according to claim 1,
If the same type of parts are used in multiple device packages,
A package production result DB is also provided to store production results for each package.
The lifetime production number predicting unit refers to the device configuration DB, the shipping history DB, the required plan DB, and the device end plan DB in accordance with information on the end parts input from the outside, for each package, Determine the number of stocks of finished parts, calculate the required number of parts in the future, and calculate the planned number of stocks in the future from the number of stocks and the required number of parts,
The lifetime production number prediction DB stores, for each package, the stockpiling number, the required number of parts, and the planned stockpiling stock number calculated by the lifetime production number prediction unit,
The comparison / determination unit compares the actual stock quantity stored in the parts inventory management DB with the planned stock quantity stored in the lifetime production quantity prediction DB for each package at any time or every predetermined period. Judge the shortage of end parts every time,
The parts storage management system, wherein the warning section issues a storage shortage prediction warning for each package when the comparison and determination section determines that the end parts are insufficient. In the parts stockpiling management system according to claim 1,
The lifetime production number prediction unit recalculates the required number of parts in the future for the end parts by referring to the apparatus configuration DB, the shipping history DB, and the apparatus end plan DB every time the required plan for the package is reviewed. And a re-calculation of a future planned stock quantity from the stock number and the required number of parts, and updating the contents stored in the lifetime production number prediction DB. In the parts stockpiling management system according to claim 8,
The comparison / determination unit compares the actual inventory quantity stored in the parts inventory management DB with the planned reserve inventory quantity stored in the lifetime production quantity prediction DB at any time or every predetermined period, To calculate
The parts storage management system, wherein the warning section issues a storage shortage prediction warning including the shortage period of the end parts calculated by the comparison determination section. In the parts stockpiling management system according to claim 8,
When using parts of the same type in a plurality of device packages, and when the comparison determination unit detects a shortage of stock of the end parts,
An alternative design prediction unit that performs alternative design of the end parts for each package, and outputs alternative design information including, for each package, alternative design costs, a shortage period, and the number of alternative products to be used for each package; A parts stockpiling management system characterized by the provision. Insufficient stockpile of parts used in equipment produced in the factory, parts data used for each device or each package that constitutes a hardware circuit for each function, shipping history data of equipment delivered to customers in the past, In the parts stockpiling management method that is detected by a computer by referring to the required plan data of the device or package including the number of orders and the production end plan data of the device ,
According to the information of the end parts input from the outside, the part data , the shipping history data , the required plan data, and the production end plan data are referred to, and the number of stocks of the end parts is determined and the future part requirements Lifetime production number prediction procedure for calculating the number of stocks, and calculating the future stockpiling stock number from the stockpiling number and the required number of parts,
Lifetime production number prediction data storage procedure for storing the number of reserves calculated in the lifetime production number prediction procedure , the required number of parts, and the planned storage stock number as lifetime production number prediction data ;
Parts inventory management data storage procedure for storing as stock inventory management data while appropriately updating the stock quantity of stockpiled parts,
Any time or at predetermined time intervals, and the component has been inventory stored as inventory data is compared with the expected stockpiled inventory stored the a lifetime production expected number data, and the comparison procedure determining lack of termination component ,
A component storage management method comprising: executing, by a computer , an alarm procedure for issuing a storage shortage prediction alarm when it is determined that the number of end components is insufficient in the comparison procedure. In the parts stockpiling management method according to claim 11,
The comparison procedure compares the actual stock quantity stored as the parts inventory management data with the planned stock quantity stored as the lifetime production quantity prediction data at any time or every predetermined period, and the shortage of end parts Calculate the time,
The parts storage management method, wherein the warning procedure issues a stockpile shortage prediction warning including a shortage period of the end parts calculated by the comparison procedure. In the parts stockpiling management method according to claim 11,
The lifetime production number forecasting procedure calculates the part usage record from the inventory fluctuation status for each predetermined period, re-predicts the required number of parts of the end parts, and re-predicts the required number of parts and the final confirmed end A part stockpiling management method characterized by recalculating the future stockpile stock quantity from the number of parts stockpile. Insufficient stockpile of parts used in equipment produced in the factory, parts data used for each device or each package that constitutes a hardware circuit for each function, shipping history data of equipment delivered to customers in the past, In the parts stockpiling management method that is detected by a computer by referring to the required plan data of the device or package including the number of orders and the production end plan data of the device ,
According to the information of the end parts input from the outside, the part data, the shipping history data, the required plan data, and the production end plan data are referred to, and the number of stocks of the end parts is determined and the future part requirements Lifetime production number prediction procedure for calculating the number of stocks, and calculating the future stockpiling stock number from the stockpiling number and the required number of parts,
Device configuration data storage procedure for storing component data used for each device or each package constituting a hardware circuit for each function;
Shipping history data storage procedure to store the shipping history data of the devices delivered to customers in the past,
Requirement plan data storage procedure for storing the required plan data of the device or package including the number of orders,
Device end plan data storage procedure for storing device end of life plan data ;
Calculation of the future required number of packages using the end part by referring to the part data , the shipping history data , the requirement plan data, and the production end plan data according to the information of the end part input from the outside A lifetime production number forecasting procedure,
Lifetime production number prediction data storage procedure for storing the future required number of packages calculated in the lifetime production number prediction procedure as lifetime production number prediction data ;
And package production result data storage To save a package of actual production data,
Any time or at predetermined intervals, when compared with packages of production result data stored by the package production result data storage procedure, the future required number of package saved in the lifetime production expected number data stored procedures, packages A comparison procedure to determine the shortage of end parts from the excess or shortage of production of
A component storage management method comprising: executing, by a computer , an alarm procedure for issuing a storage shortage prediction warning when the comparison procedure determines that there are insufficient end components. In the parts stockpiling management method according to claim 14,
In the comparison procedure, the production record data of the package stored by the package production record data storage procedure and the future required number of packages stored by the lifetime production number prediction data storage procedure are stored at any time or every predetermined period. In comparison, calculate the shortage of end parts from the excess and shortage of package production,
The parts storage management method, wherein the warning procedure issues a stockpile shortage prediction warning including a shortage period of the end parts calculated by the comparison procedure. In the parts stockpiling management method according to claim 14,
Save the actual inventory quantity of finished parts as parts inventory management data,
In addition to calculating the required number of future packages for devices that use end parts, the lifetime production number predicting procedure determines the number of stocks of end parts, calculates the required number of parts in the future, Calculate the planned stock of the future stock from the required number of parts,
The lifetime production number prediction data storage procedure includes the required number of the package calculated by the lifetime production number prediction procedure, the reserve number, the required number of parts, and the planned reserve inventory number as lifetime production number prediction data. Save and
A part use result calculation procedure for calculating a part use result from the production result status for each predetermined period of the production result data is further provided,
The lifetime production number forecasting procedure is to determine the actual number of used parts from the stock quantity of the finished parts stored as the parts inventory management data , re-predict the required number of parts of the finished parts, and confirm the re-estimated parts required number first. Recalculate the future planned stock of inventory from the number of stock of finished parts
The comparison procedure compares the actual stock quantity stored as the parts inventory management data with the scheduled stock quantity stored as the lifetime production quantity prediction data at any time or every predetermined period, and the shortage of end parts A comparison procedure for determining
An alarm procedure for issuing a stockpile shortage prediction alarm when said comparison procedure determines that there are insufficient end parts;
A part stockpiling management method characterized in that the process is executed by a computer . In the parts stockpiling management method according to claim 11,
If the same type of parts are used in multiple device packages,
A package production record data storage procedure for storing production record data for each package is further provided.
The lifetime production number prediction procedure is performed for each package by referring to the part data , the shipping history data , the required plan data, and the production end plan data according to the information of the end parts input from the outside. Confirming the number of parts stock, calculating the required number of parts in the future, and calculating the planned number of stocks in the future from the number of stocks and the number of parts required, and calculating the number of stocks stored, the number of parts required, and the planned stock Save the number of stocks for each package,
The comparison procedure compares the actual inventory number stored as the parts inventory management data and the planned stockpiling inventory number stored as the lifetime production number prediction data for each package at any time or every predetermined period, Determine the shortage of end parts for each package,
The component storage management method, wherein the alarm procedure issues a reserve shortage prediction warning for each package when the comparison procedure determines that there are not enough finished components. In the parts stockpiling management method according to claim 11,
The lifetime production number forecasting procedure is to recalculate the future required number of parts of the end part by referring to the part data , the shipping history data and the production end plan data every time the required plan of the package is reviewed. A part stockpile management method comprising: recalculating a future planned stockpile stock number from the stockpile number and the required number of parts, and updating the lifetime production number prediction data . In the parts stockpiling management method according to claim 18,
The comparison procedure compares the actual stock quantity stored as the parts inventory management data with the scheduled stock quantity stored as the lifetime production quantity prediction data at any time or every predetermined period, and the shortage of end parts Calculate the time,
The parts storage management method, wherein the warning procedure issues a stockpile shortage prediction warning including a shortage period of the end parts calculated by the comparison procedure. In the parts stockpiling management method according to claim 18,
When the same type of parts are used in a package of a plurality of devices, and when the lack of stock of the end parts is detected in the comparison procedure,
An alternative design prediction procedure for performing alternative design of the end parts for each package, and outputting alternative design information for each package, including alternative design cost, shortage period, and number of alternative products to be used for each package; A component storage management method, which is executed by a computer .

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