JP6292818B2 - Basic unit calculation device and basic unit calculation method - Google Patents

Description

  The present invention relates to a technology of a basic unit calculation device.

  As a background art in this technical field, there is JP 2013-117856 A (Patent Document 1). In this publication, “a work time calculation device using work performance information at a manufacturing site, including a storage unit, an input unit, a control unit, and a display unit, the storage unit is a work process of each work performed. Work history information including at least start date / time and completion date / time information, operation time information including at least the process, date, and operation time for each facility / worker, and at least product type, work process, initial setting work time, and work time conversion Working time information including a coefficient, and the input unit accepts at least a parameter input of a totaling process, a totaling start date / time, a totaling end date / time, and a totaling unit period from a user, and the control unit is input Based on the aggregation start date / time, the aggregation end date / time, and the aggregation unit period, a process for setting the aggregation period, and the operation time information is searched to calculate the total of the aggregation target processes in each aggregation period. A process for calculating the total work time of the aggregation target process in each aggregation period by searching the operation time, the work performance information and the work time information, converting the corresponding work time by the work time conversion coefficient, The process of calculating the error between the total operation time and the total work time of the counting period and the process of changing the work time conversion coefficient so as to minimize the error, the display unit is performed by the process of the control unit A work time calculation device characterized by displaying the obtained work time conversion coefficient, a comparison graph between the total operation time and the total work time in each counting period before and after the work time conversion, and an error '' is described. .

JP 2013-117856 A

  In the above technique, the start and completion date and time of work in each process at the manufacturing site are predicted using simulation, and the work time is corrected so as to reduce the error between the predicted result and the work performance. This technique cannot calculate the working time for a manufacturing site where the work results cannot be collected in detail. For example, for a manufacturing site that collects only the work start date and time of the first process at the manufacturing site and the work completion date and time of the final process, the work time cannot be calculated appropriately, and it is difficult to increase the accuracy of the simulation. .

  An object of the present invention is to provide a technology that enables calculation of a basic unit for a manufacturing site where work results are not collected for each process.

  The present application includes a plurality of means for solving at least a part of the above-described problems. Examples of such means are as follows. In order to solve the above-mentioned problem, the basic unit calculation apparatus according to the present invention is preliminarily provided for each combination of the product and the manufacturing process among a plurality of types of basic units related to either the product or the manufacturing process of the product. A storage unit that stores information on the determined basic unit and an actual value corresponding to the basic unit related to the combination of the product and the manufacturing process, and the information on the basic unit is used for each actual value. An error calculation unit that identifies an error from the predicted value, and a plurality of basic units related to either the product or the manufacturing process, a value obtained by combining the errors for each combination of the product and the manufacturing process is used. A correction target basic unit determination unit that specifies a basic unit to be corrected, and a basic unit correction unit that corrects the basic unit to be corrected.

  According to the present invention, the basic unit can be calculated for a manufacturing site where work results are not collected for each process. Therefore, since the production lead time and the production cost can be predicted with high accuracy by using the high-accuracy basic unit for the discrete simulation, it is possible to realize measures for compliance with the delivery date and cost reduction. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a figure which shows the structural example of the basic unit calculation system which concerns on embodiment of this invention. It is a figure which shows the data structure stored in an intensity | strength memory | storage part. It is a figure which shows the data structure stored in a track record error information storage part. It is a figure which shows the hardware constitutions of a basic unit calculation apparatus. It is a figure which shows the processing flow of a basic unit adjustment process. It is a figure which shows the processing flow of a basic unit error calculation process. It is a figure which shows the processing flow of a correction | amendment basic unit determination process. It is a figure which shows the process example of a correction | amendment basic unit determination process. It is a figure which shows another example of a correction | amendment basic unit determination process. It is a figure which shows an example of the input screen of a basic unit adjustment process. It is a figure which shows an example of the output screen of a basic unit adjustment process. It is a figure which shows the structural example of the basic unit calculation system which concerns on 2nd embodiment. It is a figure which shows the processing flow of the basic unit adjustment process of 2nd embodiment. It is a figure which shows an example of the output screen of the basic unit adjustment process of 2nd embodiment.

  Hereinafter, a basic unit calculation apparatus 100 as an example of a basic unit calculation system 1 to which an embodiment according to the present invention is applied will be described with reference to the drawings.

  FIG. 1 is a diagram showing an example of the overall configuration of a basic unit calculation system 1 according to the present invention. The basic unit calculation system 1 includes a basic unit calculation device 100, a basic unit calculation device 100, and a network 10 including a LAN (Local Area Network), a WAN (Wide Area Network), a VPN (Virtual Private Network), and the like. A work performance management apparatus 200 that can communicate with the calculation apparatus 100 and a basic unit management apparatus 300 are included.

The basic unit calculation apparatus 100 includes a storage unit 110, a control unit 120, an input unit 130, a display unit 140, and a communication unit 150. The storage unit 110 includes a basic unit storage unit 111 and a performance error information storage unit 112. The storage unit 110 may be provided in another device connected via the network 10 or the like, and the basic unit calculation device 100 may access information stored in the storage unit 110 via the network 10. .

  FIG. 2 is a diagram illustrating a structure of data stored in the basic unit storage unit 111. In the basic unit storage unit 111, a product 111a which is information for specifying a product, a step 111b for specifying a process for manufacturing a product specified by the product 111a, a basic unit name 111c for specifying the name of the basic unit, The basic unit 111d and the correction target 111e for specifying whether or not the basic unit is a correction target are stored. That is, it can be said that the basic unit storage unit 111 stores information on the types of basic units and values used for the discrete simulation for each manufacturing process of the product.

  FIG. 3 is a diagram illustrating the structure of data stored in the performance error information storage unit 112. The actual error information storage unit 112 includes an index 112a for specifying an index for calculating an error, a target product / process 112b for specifying an error calculation target, and an index 112a for the product or process specified in the target product / process 112b. The work result 112c for specifying the result of the index specified in (1), the simulation result 112d for specifying the predicted value of the result simulated by a predetermined simulator based on the basic unit, the result and the simulation result specified by the work result 112c And an error 112e for specifying an error from the predicted value specified by 112d. For example, when the production lead time of the X product is used as an index and the work result is 3 days and the simulation result is 3.3 days, information that the error is 10% is stored in one record.

  Returning to the description of FIG. The control unit 120 includes a simulation processing unit 121, a basic unit error calculation unit 122, a correction target basic unit determination unit 123, and a basic unit correction unit 124.

  The simulation processing unit 121 performs a discrete simulation using the basic unit stored in the basic unit storage unit 111.

  The basic unit error calculation unit 122 calculates an error for each basic unit using the processing result of the simulation processing unit 121 and the actual information and error information stored in the actual error information storage unit 112, and the actual error information storage unit 112.

  The correction target basic unit determination unit 123 uses the error between the actual value calculated by the basic unit error calculation unit 122 and the basic unit, and develops and integrates errors for a plurality of basic units for each process and product. A predetermined number of basic units received from the input screen or the like are determined as correction targets in order from the product with the largest total.

  The basic unit correcting unit 124 corrects the basic unit of the product process determined by the correction target basic unit determining unit 123 according to a predetermined standard, and stores the corrected basic unit in the basic unit storage unit 111.

  The input unit 130 receives input of information necessary for calculating the basic unit. For example, the input unit 130 receives an input of the basic unit to be calculated and the number of product processes to be selected as the correction target.

The display unit 140 displays an input screen or an output screen based on the screen information. For example, the display unit 140 displays the total error that is the basis for determining the correction target and the basic unit after correction on a predetermined screen.

  The communication unit 150 communicates with other apparatuses such as the work performance management apparatus 200 and the basic unit management apparatus 300 via the network 10.

  The work performance management apparatus 200 includes the same information as the performance error information storage section 112 in the storage section, and receives and updates the information from the equipment on the manufacturing site and the user of the basic unit calculation apparatus 100. In addition, when the work result management apparatus 200 receives an acquisition request for the information from the basic unit calculation apparatus 100, the work result management apparatus 200 transmits the information acquisition request to the basic unit calculation apparatus 100.

  The basic unit management apparatus 300 includes the same information as the basic unit storage unit 111 in the storage unit, and receives and updates the information from the user of the basic unit calculation apparatus 100. In addition, when the basic unit management apparatus 300 receives an acquisition request for the information, the basic unit management apparatus 300 transmits it to the basic unit calculation apparatus 100.

  FIG. 4 is a diagram illustrating a hardware configuration example of the basic unit calculation apparatus 100. The basic unit calculation device 100 is typically a server device, but is not limited to this, and may be an electronic information terminal such as a personal computer device, a mobile phone terminal, a tablet terminal, or a PDA (Personal Digital Assistant). In addition, the basic unit calculation apparatus 100 does not directly access the network 10, but may access it via a communication network using line switching such as a cellular phone carrier or a wireless communication network for data transmission. Good.

  The basic unit calculation device 100 includes a CPU (Central Processing Unit) 101, a memory 102, an external storage device 103, a communication device 104, an output device 105, an input device 106, a reading device 107, and a bus connecting them. And comprising.

  The CPU 101 is a unit that executes various calculations. The CPU 101 executes various processes by executing a predetermined program loaded into the memory 102 from the external storage device 103 or the like.

  The memory 102 stores a program executed by the CPU 101, data necessary for executing the program, and the like.

  The external storage device 103 is a non-volatile storage device such as a so-called hard disk (Hard Disk Drive), SSD (Solid State Drive) or flash memory capable of storing digital information.

  The communication device 104 is a NIC (Network Interface Card) for connecting to the network 10 or the like.

  The output device 105 is a device that generates output information including a display, a printer, or a speaker that is an audio output device. The display includes, for example, a CRT display, an LCD (Liquid Crystal Display), an organic EL (Electro-Luminescence) display, and the like.

  The input device 106 is a device that receives input information including a pointing device such as a keyboard and a mouse, or a microphone that is a voice input device.

  The reading device 107 is a device that reads information from a portable storage medium 108 having portability such as a CD-ROM.

  The simulation processing unit 121, the basic unit error calculation unit 122, the correction target basic unit determination unit 123, and the basic unit correction unit 124 are realized by a program that causes the CPU 101 to perform processing. This program is stored in the portable storage medium 108 read by the external storage device 103, the memory 102, or the reading device 107, loaded onto the memory 102 for execution, and executed by the CPU 101.

  The storage unit 110 is realized by the memory 102, the external storage device 103, the reading device 107, and the portable storage medium 108.

  The above is the hardware configuration example of the basic unit calculation apparatus 100 in the present embodiment. However, the configuration is not limited to this, and other hardware may be used. For example, it is possible to connect to a network such as the Internet, LAN, WAN, etc., and to receive the basic unit input in other apparatuses, information on performance error, etc., and determine the corrected basic unit.

  In addition, each information stored in the storage unit 110 may be obtained by collecting information stored in another server device connected to the network or an external storage device and integrating the information. It may be updated by receiving data transmission from the parties at the timing.

  [Description of Operation] Next, the operation by the basic unit adjustment processing of the basic unit calculation apparatus 100 in this embodiment will be described with reference to FIG.

  First, the simulation processing unit 121 performs a discrete simulation process using the basic unit stored in the basic unit storage unit 111 (step S100). Note that various methods, products, and algorithms can be adopted as the processing contents of the discrete simulation processing. For example, a discrete simulation process can be performed using commercially available production simulator software such as Plant Simulation of Siemens. The simulation processing unit 121 stores the index for each product obtained as a result of the discrete simulation processing in the simulation result 112d of the performance error information storage unit 112.

  Then, the basic unit error calculation unit 122 performs a basic unit error calculation process (step S200). Specifically, the basic unit error calculation unit 122 calculates an error for each basic unit using the result of the simulation processing in step S100 and the actual information stored in the actual error information storage unit 112, and the actual error Stored in the error 112e of the information storage unit 112. A detailed processing flow of the basic unit error calculation processing will be described later.

  Then, the correction target basic unit determination unit 123 performs a correction target basic unit determination process (step S300). Specifically, the correction target unit determining unit 123 develops and integrates errors for a plurality of basic units for each process and product, and receives a predetermined number received from the input screen or the like in order from the process of the product having the largest error. The basic unit is determined as a correction target. A detailed process flow of the correction target intensity determination process will be described later.

  Then, the basic unit correcting unit 124 performs a predetermined correction on the determined basic unit to be corrected (step S400). Specifically, the basic unit correction unit 124 corrects the basic unit with respect to the basic unit of the product / process determined in the correction target basic unit determination process in step S300, and the corrected basic unit is converted into the basic unit storage unit 111. To store.

  Here, various methods, products, and algorithms can be adopted as means for correcting the basic unit. For example, the basic unit correction unit 124 sets the intermediate value between the current value and the maximum value or the minimum value as a new basic unit after setting the maximum value and the minimum value of the basic unit using the bisection method. May be. Alternatively, the basic unit correction unit 124 may increase / decrease the basic unit at a certain rate using a value that is received in advance from an input screen or the like and that specifies a predetermined ratio stored in a predetermined area of the storage unit 110. .

  Alternatively, the basic unit error calculation unit 122 may specify a positive / negative sign and an absolute value for the ratio of the difference between the simulation predicted value and the actual value as the error. In this case, the basic unit correcting unit 124 increases or decreases the basic unit in the direction in which the sign of the positive / negative is reversed, and the increase / decrease amount is determined according to a predetermined amount or a predetermined standard, for example, specifying the increase / decrease rate according to the degree of error. It is good also as what to do. By doing so, the basic unit can be appropriately corrected.

Then, the display unit 140 performs a correction content display process (step S500). Specifically, the display unit 140 configures an output screen that displays the corrected basic unit and the value of the basic unit, and presents the output screen to the user.

  Then, the basic unit correction unit 124 determines whether or not an input indicating that the user recognizes the presented correction content has been received (step S600). The basic unit correcting unit 124 ends the basic unit adjustment process when receiving an input for approving the contents. If the basic unit correcting unit 124 receives an input that does not permit the basic unit correction, the basic unit correcting unit 124 returns the control to step S100.

  The above is the processing flow of the basic unit adjustment processing. According to the basic unit adjustment processing, it is possible to intensively adjust the basic unit with many errors to the manufacturing site where the work results cannot be collected for each process. Therefore, even if the actual value is not acquired in detail for each process, the accuracy of the simulation performed using the adjusted basic unit can be improved.

  FIG. 6 is a diagram illustrating a process flow of the basic unit error calculation process. The basic unit error calculation process is a process started in step S200 of the basic unit adjustment process.

  First, the basic unit error calculation unit 122 acquires information for one line from the record error information storage unit 112 (step S201).

  Then, the basic unit error calculation unit 122 calculates an error between the work performance and the simulation result (step S202). Specifically, the basic unit error calculation unit 122 stores the record stored in the work record 112c of the acquired row in the array Rec (i, j), and arranges the simulation result stored in the simulation result 112d. Store in Sim (i, j). Here, i indicates an index for calculating an error stored in the index 112a, and j is a product or process stored in the target product / process 112b. Then, the basic unit error calculation unit 122 calculates an error between the work record and the simulation result by the following equation (1).

  Here, the left side Err (i, j) indicates an error regarding the index i with respect to the product / process j. That is, it can be said that the error is calculated as a ratio of the difference between the simulation result and the actual result in the actual result. The basic unit error calculation unit 122 stores the calculated error Err (i, j) in the error 112e of the actual error information storage unit 112 corresponding to the combination of the corresponding index and the product or process.

  Then, the basic unit error calculation unit 122 determines whether or not errors have been calculated for all the rows in the performance error information storage unit 112, and if not, returns control to step S201 (step S203). If the calculation has been completed, the basic unit error calculation unit 122 ends the basic unit error calculation process.

  The above is the process flow of the basic unit error calculation process. According to the basic unit error calculation process, it is possible to quantitatively specify the difference between the actual basic unit and the result calculated by the simulation process.

  FIG. 7 is a diagram illustrating a processing flow of the correction target intensity determination process. The correction target basic unit determination process is a process started in step S300 of the basic unit adjustment process.

  First, the modification target basic unit determination unit 123 selects one combination from a plurality of basic units (step S301). Specifically, the correction target unit determination unit 123 selects one combination of a plurality of pre-input base units or a predetermined plurality of base units related to a product or process. For example, the correction target basic unit determination unit 123 selects a plurality of basic unit names 111c from the records included in the basic unit storage unit 111 without duplication, and selects them as a combination.

  Then, the correction target intensity determining unit 123 adjusts the error of the intensity for the selected combination (step S302). Specifically, the correction target basic unit determination unit 123 specifies whether each basic unit constituting the selected combination of basic units is a basic unit for a product or a basic unit for a process. Then, the correction target intensity determination unit 123 develops combinations of product axes and process axes, and adjusts the error values of the intensity in common for each product or process. In the matching process, the correction target intensity determining unit 123 uses the following expression (2).

  Here, the left side UnitErr (k, h) is the sum of the unit error for the process k and the product h. Equation (2) adds the error Err (i, k) of the process k and the error Err (i, h) of the product h for all of the plurality of indices for calculating the error.

  Then, the correction target basic unit determination unit 123 determines whether or not the sum of errors has been calculated for all combinations of the plural basic units (step S303). If it has not been calculated, the correction target intensity determining unit 123 returns the control to step S301.

  If the sum of errors has already been calculated for all of the combinations of the plurality of basic units, the correction target basic unit determination unit 123 determines the number of correction target selections as the basic units to be corrected in descending order of the calculated errors (step S304). Then, the correction target intensity determination unit 123 ends the correction target intensity determination process.

  The above is the processing flow of the correction target intensity determination process. According to the basic unit determination process to be corrected, it is possible to quantitatively identify the error generation amount including the error for the product-specific index and the error for the process-specific index. It is easy to specify the basic unit to be corrected in order to approximate.

  FIG. 8 is a diagram illustrating an example 400 of correction target basic unit determination processing in the case where power consumption per hour and work time are used as basic units. In this example, the used total power error 401 is used as an index representing an error in power usage per hour, and a manufacturing LT (lead time) error 402 is used as an index representing an error in work time. The used total power error 401 is an index used for all products in units of processes, and the manufacturing LT error 402 is an index used for all processes in units of products.

  In the procedure (1) 411 of FIG. 8, the correction target basic unit determination unit 123 performs the entire process manufacturing LT in all the processes in which the products related to the basic unit selected in step S301 of the correction target basic unit determination process pass. Assuming that the same working time error as the error has occurred, the manufacturing LT error is added to the total unit error of the selected product / process. The procedure (1) 411 is a part of the process in step S302 of the correction target intensity determination process.

  In the procedure (2) 412 of FIG. 8, the correction target basic unit determination unit 123 uses the total usage of all products in all products that pass the process related to the basic unit selected in step S301 of the correction target basic unit determination process. Assuming that the same error as the power error has occurred, the power consumption error is added to the total unit error of the selected product / process. The procedure (2) 412 is a part of the process in step S302 of the correction target intensity determination process.

  In the procedure (3) of FIG. 8, the correction target basic unit determination unit 123 specifies a combination of a process and a product that maximizes the total value of both errors, and selects a basic unit related to the combination as a correction target. The procedure (3) 413 is a process in step S304 of the correction target basic unit determination process.

  FIG. 9 is a diagram showing another example 500 of the correction target basic unit determination process in the case where the power consumption per hour and the work time are used as the basic units. In this example, a consumable consumption error 501 is used as an index representing the consumable consumption error, and an equipment operation rate error 502 is used as an index representing the equipment operation rate error. The consumable consumption error 501 and the equipment operation rate error 502 are indices used for all products in units of processes.

  In the procedure (1) 511 of FIG. 9, the correction target basic unit determination unit 123 includes consumables of all products in all the products that pass the process related to the basic unit selected in step S301 of the correction target basic unit determination process. Assuming that the same error as the consumption error has occurred, the consumption error is added to the total unit error of the selected product / process. Note that, depending on the product, there is a process that does not pass, and therefore, for such a process, no consumable consumption error is added to the total unit error.

  In the procedure (2) 512 of FIG. 9, the correction target basic unit determination unit 123 operates the facilities of all products in all products that pass the process related to the basic unit selected in step S301 of the correction target basic unit determination process. Assuming that the same error as the rate error has occurred, the equipment operation rate error is added to the total unit error of the selected product / process. In addition, since there is a process that does not pass depending on the product, the equipment availability error is not added to the total unit error for such a process.

  In the procedure (3) of FIG. 9, the combination of the process and the product that maximizes the total value of both errors is specified, and the basic unit related to the combination is selected as the correction target.

  The example according to FIG. 8 assumes that the manufacturing LT collects only the input start date and time and the completion date and time for each product. The total power used is assumed to be a production line that collects the power used by all products for each process. Therefore, in this example, the basic unit error calculation process in step S200 calculates the manufacturing LT error of the entire process of each product and the total power consumption error of all the products of each process.

  In general, when the working time error is large, the error of manufacturing LT increases and the error of the total power used also increases. Therefore, in the example of FIG. 8, it is considered that the error in the working time is large in the process / product in which both errors are large. On the other hand, in a process / product having only a large manufacturing LT error, it is considered that a manufacturing LT error has occurred due to a reason other than a basic unit error such as equipment failure.

  FIG. 9 shows an example of processing in the case where the consumable consumption and the equipment operation time (machine time) are used as basic units, and the equipment operation rate is used as an index representing an error in the equipment operation time. In this example, it is assumed that the production line collects the results of all products in each process for both consumable consumption and facility operation time. Therefore, in this example, the basic unit error calculation process in step S200 calculates the consumable consumption error and the equipment operation rate error of all products in each process.

  In general, the situation in which the error of the consumable consumption amount is large, for example, is a situation in which the probability of occurrence of a suction error of a chip mounter component is different from the assumption at the time of planning. In this case, since the number of parts picked up with respect to one product is different from the planned value, it is considered that the error in the equipment operation rate also increases. Therefore, it is considered that the error of the consumable consumption / equipment operating time is the largest in the process where the total value of both errors is the largest. On the other hand, in the process where only the error in the equipment operation rate is large, it is considered that an error has occurred due to a reason other than the basic unit error, such as equipment failure, so the error in the consumable consumption is considered small.

  FIG. 10 is a diagram illustrating an example of the input screen 600 for starting the basic unit adjustment process. FIG. 10 is an example of an input screen for designating input parameters to the basic unit calculation apparatus 100. The input screen 600 includes, for example, a basic unit data designation area 610, a basic unit correction ratio input receiving area 620, A correction target selection number input reception area 630 and a basic unit calculation start instruction input reception area 640 are included.

  The basic unit data designation area 610 includes a basic unit name input acceptance area 611 and a folder designation input acceptance area 612. The basic unit name input receiving area 611 is an area for receiving an input of a basic unit name. The folder designation input receiving area 612 is an area for receiving an input for designating a folder in which the value of the basic unit is stored.

  The basic unit correction ratio input receiving area 620 is an area for receiving the ratio when the basic unit to be corrected is corrected at a fixed ratio. The correction target selection number input receiving area 630 is an area for receiving designation of the number of combinations of products and processes to be corrected when correcting a basic unit having a large error. When the basic unit calculation start instruction input receiving area 640 receives an input, the basic unit calculation start instruction input receiving area 640 displays the values input in the basic unit data designation area 610, the basic unit correction ratio input receiving area 620, and the correction target selection number input receiving area 630. Accept and start the basic unit adjustment process.

  FIG. 11 is a diagram illustrating an example of the output screen 700 of the basic unit adjustment process. The output screen 700 is a screen for outputting at least the product / process to be corrected and the basic unit value after correction. The output screen 700 includes a basic unit list display area 710, a correction target determination reason display area 720, a corrected basic unit display area 730, a result confirmation / end instruction reception area 740, and a basic unit calculation continuation instruction reception area 750. And are included.

  In the basic unit list display area 710, a list of basic units used for error correction is displayed. In the correction object determination reason display area 720, the total of the basic unit errors and the product / process with the maximum total are displayed. In the corrected basic unit display area 730, the basic unit regarding the combination of the process and the product is displayed, and the corrected basic unit is highlighted (for example, highlighted). The result confirmation / end instruction receiving area 740 is a button for receiving an input for ending the basic unit error calculation process. The basic unit calculation continuation instruction receiving area 750 is a button for receiving an input for restarting the basic unit error calculating process.

  The above is the basic unit calculation system 1 according to the first embodiment of the present invention. In this embodiment, in the process for obtaining the error of the basic unit, the input of the basic unit information is accepted. However, the present invention is not limited to this. For example, the operation may be performed without receiving input of information specifying the basic unit.

  FIG. 12 is a diagram showing a configuration example of a basic unit calculation system 1 ′ to which the second embodiment according to the present invention is applied. The second embodiment has substantially the same configuration as that of the first embodiment, but is different in that it operates without receiving input of information specifying a basic unit. Hereinafter, the difference from the first embodiment will be described for the configuration that causes this difference.

  In the second embodiment, the basic unit calculation apparatus 100 ′ includes a basic unit selection unit 125 in the control unit 120 ′. The basic unit selection unit 125 performs the basic unit error calculation process of FIG. 6 and the correction target basic unit determination process of FIG. 7 for each combination of the basic units stored in the basic unit storage unit 111, and the result Record. Then, the results for each combination are compared, and the basic unit with the smallest sum of errors is specified.

  In this way, it is possible to identify the basic unit correction method that is most effective, correct the basic unit, and obtain a basic unit that enables highly accurate simulation processing.

  FIG. 13 is a process flow of the basic unit adjustment process according to the second embodiment. The basic unit adjustment process is started when the basic unit calculation apparatus 100 ′ receives an instruction to start a predetermined process.

  First, the basic unit selection unit 125 changes the used basic unit (step S700). Specifically, the basic unit selection unit 125 reads out the types of the basic unit names 111c stored in the basic unit storage unit 111 without duplication to make a population, and uses a predetermined combination from the population as a used basic unit. obtain. When the used basic unit is already set, the basic unit selecting unit 125 specifies and sets an unset used basic unit.

  The simulation processing unit 121, the basic unit error calculation unit 122, the correction target basic unit determination unit 123, and the basic unit correction unit 124 are respectively the above-described simulation processing, basic unit error calculation processing, and correction target basic unit determination. Processing, basic unit correction processing, and correction content display processing are performed (step S701). Note that the output information obtained as a result of the processing is stored in a predetermined area of the storage unit 110 in a distinguishable manner for each basic unit used.

  Then, the basic unit selection unit 125 determines whether or not all the used basic units have been tried (step S702). Specifically, the basic unit selection unit 125 determines whether or not the process of step S701 has been performed for all of the used basic units in the population specified in step S700. If the processing has not been performed for all used basic units, the basic unit selecting unit 125 returns the control to step S700.

  When all the used basic units have been tried (in the case of “Yes” in step S702), the basic unit selecting unit 125 compares the processing results for each used basic unit, and the used basic unit that minimizes the sum of errors. A unit is selected (step S703).

Then, the basic unit selection unit 125 determines whether or not an input indicating that the user accepts the selected correction content has been received (step S704). Specifically, the display unit 140 configures an output screen that displays the selected basic unit of use and the value of the basic unit of use, and presents it to the user by outputting it. The basic unit selection unit 125 presents an output screen, and ends the basic unit adjustment process when an input for approving the content is received. The basic unit selection unit 125 returns the control to step S700 when receiving an input that does not allow the correction of the basic unit.

  The above is the process flow of the basic unit adjustment process according to the second embodiment. According to the basic unit adjustment processing according to the second embodiment, it is possible to appropriately specify a basic unit with many errors for a manufacturing site where work results cannot be collected for each process, and to adjust efficiently. Therefore, even if the actual value is not acquired in detail for each process, the accuracy of the simulation performed using the adjusted basic unit can be improved.

  FIG. 14 is an example of the output screen 800 in step S704 of the basic unit adjustment process according to the second embodiment. The output screen 800 is a screen for outputting at least the basic unit used, the product / process to be corrected, and the corrected basic unit value. The output screen 800 includes a basic unit list display area 810, a correction target determination reason display area 820, a corrected basic unit display area 830, a result confirmation / end instruction reception area 840, and a basic unit calculation continuation instruction reception area 850. And a basic unit change instruction receiving area 860.

  In the basic unit list display area 810, used basic units that are combinations of the basic units used when error correction is performed are displayed. In the correction target determination basis display area 820, the total of the unit error and the product / process having the maximum total are displayed. In the corrected basic unit display area 830, the basic unit regarding the combination of the process and the product is displayed, and the corrected basic unit is highlighted (for example, highlighted).

  The result confirmation / end instruction receiving area 840 is a button for receiving an input for ending the basic unit error calculation process. The basic unit calculation continuation instruction receiving area 850 is a button for receiving an input for restarting the basic unit error calculating process. The used basic unit change instruction receiving area 860 is a button for receiving an instruction to replace the used basic unit with another. When the input is accepted by the button, the basic unit selection unit 125 excludes the selected used basic unit from the selection target and reselects a basic unit with a small error.

  The above is the basic unit calculation system 1 ′ according to the second embodiment of the present invention. According to the embodiment, it is possible to change the basic unit of use and calculate the error and correct the basic unit. By doing in this way, it is possible to calculate the error between the actual result and the simulation result from various angles, and to correct the value of the basic unit to a value close to the actual result.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  In addition, for example, in the above embodiments, the error value may be added when the error is adjusted, or the error value is weighted and added according to the index. Alternatively, the error to be combined may be converted into a normal distribution for each basic unit, calculated as a deviation value, and added together to be combined.

  In addition, each of the above-described configurations, functions, processing units, processing means, and the like may be realized by software by causing a processor to interpret and execute a program that realizes each function. Information such as programs, tables, and files that realize each function can be stored in a recording device such as a memory, a hard disk, and an SSD, or a storage medium such as an IC card, an SD card, and a DVD.

  Further, in the above embodiment, the case where the data to be used is input via the screen provided by the input unit 130 has been described. However, when equivalent data already exists due to the output of another system or the like. Alternatively, it may be realized by a method of acquiring data without using an input screen by connecting to a storage device of the system or a storage medium storing data.

  For data output, if the data is to be used in another system, connect the systems, take the form of transmitting data to a storage area accessible by other systems, and the output screen provided by the input / output interface is not necessarily used. You do not have to use it.

  Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

  Each of the above-described configurations, functions, processing units, and the like may be realized by hardware, for example, by designing a part or all of them with an integrated circuit. Further, the technical elements of the above-described embodiments may be applied independently, or may be applied by being divided into a plurality of parts such as program parts and hardware parts.

  In the above, this invention was demonstrated centering on embodiment.

DESCRIPTION OF SYMBOLS 10 ... Network, 100 ... Basic unit calculation apparatus, 110 ... Storage part, 111 ... Basic unit storage part, 112 ... Actual error information storage part, 120 ... Control part, 121 ... Simulation processing unit, 122 ... Basic unit error calculation unit, 123 ... Correction target basic unit determination unit, 124 ... Basic unit correction unit, 130 ... Input unit, 140 ... Display unit, 150 ... Communication unit, 200 ... Work performance management device, 300 ... Basic unit management device

Claims (8)

Among a plurality of types of basic units relating to either a product or a manufacturing process of the product, information on basic units predetermined for each combination of the product and the manufacturing process, the product and the manufacturing process, A storage unit for storing the actual value corresponding to the basic unit related to the combination of
For each of the actual values, an error calculation unit that identifies an error from the predicted value using the basic unit information;
For a plurality of basic units related to either the product or the manufacturing process, a correction target unit determination for specifying a basic unit to be corrected using a value obtained by combining the errors for each combination of the product and the manufacturing process And
A basic unit correcting unit for correcting the basic unit to be corrected;
A basic unit calculation device comprising: The basic unit calculation apparatus according to claim 1,
In the correction target basic unit determination unit, accepting designation of a plurality of basic units for adjusting the error, and adjusting the received error regarding the basic unit for each combination of the product and the manufacturing process,
Basic unit calculation device characterized by the above. The basic unit calculation apparatus according to claim 1,
In the correction target basic unit determination unit, the specification of the number of basic units to be corrected is received, and the basic units to be corrected are specified by the number of received basic units in descending order of the combined value of the errors.
Basic unit calculation device characterized by the above. The basic unit calculation apparatus according to claim 1,
In the correction target unit determination unit, when the error is combined, it is combined using a deviation value of the error converted into a normal distribution for each basic unit,
Basic unit calculation device characterized by the above. The basic unit calculation apparatus according to claim 1,
A basic unit selection unit that selects a combination of a plurality of basic units that match the error,
The correction target basic unit determination unit identifies a combination of basic units having a minimum value of the errors among the combinations of basic units selected by the basic unit selection unit, and the error for the combination of basic units. Specifying the combination of the product and the manufacturing process that maximizes the combined value, and specifying the basic unit to be corrected,
Basic unit calculation device characterized by the above. The basic unit calculation apparatus according to claim 1,
The error calculation unit specifies, as the error, a positive or negative sign of a ratio of a difference between the predicted value and the actual value, and an absolute value,
The correction target intensity determining unit matches the error for each combination of the product and the manufacturing process using the absolute value,
The basic unit correction unit increases or decreases the basic unit in the direction in which the positive and negative signs are reversed.
Basic unit calculation device characterized by the above. The basic unit calculation apparatus according to claim 1,
An output unit that outputs output information including at least the information on the basic unit corrected by the basic unit correction unit and the value obtained by combining the errors calculated by the correction target basic unit determination unit;
A basic unit calculation device comprising: A basic unit calculation method for calculating a basic unit using a computer,
The computer includes a control unit,
Among a plurality of types of basic units relating to either a product or a manufacturing process of the product, information on basic units predetermined for each combination of the product and the manufacturing process, the product and the manufacturing process, And a storage unit for storing the actual value corresponding to the basic unit for the combination of
The controller is
For each actual value, an error calculation processing procedure for specifying an error from a predicted value using the basic unit information;
For a plurality of basic units related to either the product or the manufacturing process, a correction target unit determination for specifying a basic unit to be corrected using a value obtained by combining the errors for each combination of the product and the manufacturing process Processing procedure and
Basic unit correction processing procedure for correcting the basic unit to be corrected;
The basic unit calculation method characterized by implementing.

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