JP7630104B2 - Production capacity management device, production capacity management method, and production capacity management program - Google Patents

Description

The present invention relates to a production capacity management device, a production capacity management method, and a production capacity management program that generate information used to estimate the production capacity of a production line.

In a production line composed of production equipment such as component mounting equipment, products such as electronic circuit boards with components mounted on a board are continuously produced. In order to estimate the production capacity of such a production line, in addition to the processing capacity of each production equipment, it is necessary to take into account temporary suspension of the production equipment due to operator work such as replenishing parts and materials to the production equipment and responding to errors in the production equipment (for example, Patent Document 1). It is disclosed that the system described in Patent Document 1 estimates the production capacity of a component mounting line based on pre-stored information such as the configuration of the production line for which production capacity is to be estimated, information about the production equipment, and the frequency of operator work, as well as input information about the operator and a production plan.

JP 2017-199742 A

However, in conventional technologies including Patent Document 1, in order to estimate production capacity, it is necessary to input a large amount of detailed information about the production line, production equipment, and products in advance to create a simulation environment, which has the following problems. In other words, while a production line with a simulation environment can easily estimate production capacity under multiple conditions, when considering the addition of production equipment or investment in a new production line, it is necessary to input a large amount of detailed information for each production line with a different configuration to create a simulation environment, which is time-consuming and requires a lot of input work, and there is room for further improvement before it can be used in equipment investment considerations, etc.

The present invention aims to provide a production capacity management device, a production capacity management method, and a production capacity management program that can easily generate information used to estimate the production capacity of production lines with different configurations.

The production capacity management device of the present invention includes an acquisition unit that acquires equipment information and operation records of multiple production devices equipped in a production line in which a product is produced, a virtual capacity generation unit that generates virtual capacity information of the production line from the equipment information and the operation records, the virtual capacity information including information on the equipment elements of the production devices, information on the specifications of the production devices, information on the time required for the production line to produce the product, and information on events that require operator work on the production line and their occurrence frequency, and a storage unit that stores the generated virtual capacity information for each operation record.

The production capacity management method of the present invention includes acquiring equipment information and operation records of a plurality of production devices equipped in a production line on which a product is produced, generating virtual capacity information of the production line from the equipment information and operation records, the virtual capacity information including information on the equipment elements of the production devices, information on the specifications of the production devices, information on the time required for the production line to produce the product, and information on events that require operator work on the production line and their occurrence frequency, and storing the generated virtual capacity information in a storage unit for each operation record.

The production capacity management program of the present invention causes a computer to execute the production capacity management method of claim 6.

The present invention makes it possible to easily estimate the production capacity of production lines with different configurations.

FIG. 1 is a configuration diagram of a production system according to an embodiment of the present invention; FIG. 1 is a configuration explanatory diagram of a production line provided in a production system according to an embodiment of the present invention. FIG. 1 is a block diagram showing a configuration of a production system according to an embodiment of the present invention. FIG. 2 is an explanatory diagram of generation of virtual capacity information in a production capacity management device according to an embodiment of the present invention; FIG. 13 is a diagram showing an example of a floor setting screen displayed on a display unit of a production management device according to an embodiment of the present invention. FIG. 13 is a diagram showing an example of a line setting (main) screen displayed on the display unit of the production management device according to the embodiment of the present invention. FIG. 13 is a diagram showing an example of a line setting (equipment addition) screen displayed on the display unit of the production management device according to an embodiment of the present invention. FIG. 13 is a diagram showing an example of a line setting (equipment option setting) screen displayed on the display unit of the production management device according to an embodiment of the present invention. FIG. 13 is a diagram showing an example of a simulation setting (floor setting) screen displayed on the display unit of the production management device according to the embodiment of the present invention. FIG. 13 is a diagram showing an example of a simulation setting (result display) screen displayed on the display unit of the production management device according to the embodiment of the present invention. FIG. 2 is a flow diagram of a method for estimating the production capacity of a production line according to an embodiment of the present invention. FIG. 1 is a flow diagram of a method for generating virtual capacity information of a production line according to an embodiment of the present invention.

An embodiment of the present invention will be described in detail below with reference to the drawings. The configuration, screen display, etc. described below are examples for explanatory purposes and can be modified as appropriate according to the specifications of the production system, production line, production equipment, production management device, and production capacity management device. In the following, the same reference numerals are used for corresponding elements in all drawings, and duplicated explanations will be omitted. In Figures 1 and 2, in the board transport direction (left-right direction in Figures 1 and 2), the left side of the paper is upstream and the right side is downstream. Also, in Figures 1 and 2, in the direction perpendicular to the board transport direction in the horizontal plane (up-down direction in Figures 1 and 2), the lower side of the paper is the front and the upper side is the rear.

First, the configuration of production system 1 will be described with reference to Figure 1. Production system 1 is configured to include floors F1-F3 in the customer's factory, and a support center S that is set up in a location away from floors F1-F3 (factory) and supports the customer's production activities. Each of floors F1-F3 is equipped with a production line that produces electronic circuit boards with components mounted on the board as the product. Note that floors F1-F3 may be configured to be installed within the same factory, or may be configured to be installed in multiple factories. Each of floors F1-F3 has the same configuration, and below, floor F1 will be described.

In FIG. 1, three production lines L1 to L3 are installed on floor F1. The production equipment on production lines L1 to L3 is connected to an in-house communication network 2 such as a LAN (Local Area Network), and is connected to a production management device 3 via an internal communication unit 4. The production management device 3 has the function of creating data and parameters necessary for the operation of the production equipment on production lines L1 to L3 and transmitting them to each production equipment. In addition, each production equipment transmits data such as the operation status and work history of each production equipment to the production management device 3. In addition to the production management device 3, floor F1 may be configured to have a line management device that manages the production of electronic circuit boards for each production line L1 to L3.

Each production line L1-L3 has component mounting lanes L1F-L3F and component mounting lanes L1R-L3R at the front and rear, respectively, which have the function of producing electronic circuit boards. The number of production lines L1 on the floor F1 does not need to be three, and may be one, two, or four or more. The number of component mounting lanes on the production lines L1-L3 does not need to be two at the front and rear, and may be one. In the example shown in FIG. 1, the production management device 3 is installed inside the floor F1 on which the production lines L1-L3 are installed, but the production management device 3 may be installed outside the floor F1. The production management device 3 may be provided on each of the floors F1-F3 in the factory, or one production management device 3 installed in the factory may manage the production lines L1-L3 on each of the floors F1-F3.

In FIG. 1, a production capacity management device 7 is installed in a support center S. The production management devices 3 on multiple floors F1 to F3 are equipped with external communication units 5. The production capacity management device 7 in the support center S is also equipped with an external communication unit 8. The external communication units 5 and 8 are connected to an off-site communication network 6 such as the Internet or a mobile communication line. With this configuration, the production management device 3 and the production capacity management device 7 can exchange information via the off-site communication network 6.

The production capacity management device 7 acquires information about the production equipment and performance information from the production management device 3 on each floor F1 to F3 and stores the information in a database. In addition, the production capacity management device 7 has a function of generating virtual capacity information for the production lines L1 to L3 from the information stored in the database in response to a request from the production management device 3, and estimating the virtual production capacity.

Next, the detailed configuration of production lines L1 to L3 will be described with reference to Figure 2. Production lines L1 to L3 have the same configuration, and below, production line L1 will be described. Production line L1 is configured by connecting in series from upstream to downstream in the board transport direction: board supply device M1, board allocation device M2, solder printing device M3, print inspection device M4, board allocation device M5, component mounting devices M6 to M9, board allocation device M10, mounting inspection device M11, reflow device M12, board allocation device M13, and board removal device M14.

Board allocation device M2, solder printing device M3, print inspection device M4, board allocation device M5, component mounting devices M6-M9, board allocation device M10, mounting inspection device M11, reflow device M12, and board allocation device M13 are connected to production management device 3 via in-house communication network 2 and internal communication unit 4. Board supply device M1 has two conveyors 9a, 9b at the front and rear, and conveyors 9a, 9b each have the function of transferring supplied boards 10A and 10B of different board types to downstream board allocation device M2. Boards 10A and 10B may be the same board type.

In FIG. 2, board allocation devices M2, M5, M10, and M13 are production devices that are equipped with a transport conveyor, which is a board allocation work section, and a conveyor movement mechanism that moves the transport conveyor between the front and rear, and perform board allocation work to allocate and transfer boards 10A and 10B received from upstream production equipment to downstream production equipment. Board allocation devices M2 and M10 receive boards 10A and 10B from two conveyors, the front and rear, connected upstream onto the transport conveyor, move the transport conveyor while holding boards 10A and 10B, and transfer them in order to a single conveyor connected downstream. Information regarding the order of boards 10A and 10B transferred downstream is transmitted from the built-in device communication unit to the production management device 3 via the on-site communication network 2 and internal communication unit 4.

The board allocation devices M5 and M13 receive the boards 10A and 10B from a single conveyor connected upstream onto a transport conveyor, move the transport conveyor while holding the boards 10A and 10B, and distribute and deliver them to the two front and rear conveyors connected downstream. When delivering them downstream, the boards 10A and 10B that are mixed and transported from upstream are distributed to a specified front or rear conveyor based on information about the order of the boards 10A and 10B received by the built-in management communication unit and transmitted from the production management device 3 via the on-site communication network 2 and the internal communication unit 4. Note that if the component mounting devices M6 to M9 are single-lane types having one conveyor, the production line L1 does not need to be equipped with the board allocation devices M2, M5, M10, and M13.

In FIG. 2, the solder printing device M3 is a production device that executes a solder printing operation in which a solder printing work unit prints solder on the boards 10A and 10B to be mounted. When the solder stored in the solder printing device M3 is consumed during the repeated solder printing operation (when solder runs out), the operator performs solder replenishment work. In addition, in a changeover operation to switch the electronic circuit board being produced, the operator in the solder printing device M3 performs operations such as replacing the mask for solder printing and changing the arrangement of the support pins that support the boards 10A and 10B from below during solder printing. The print inspection device M4 is a production device that executes a print inspection operation in which a print inspection work unit including a solder inspection camera inspects the state of the solder printed on the boards 10A and 10B.

In FIG. 2, component mounting devices M6-M9 are production devices that perform component mounting work by mounting components D on boards 10A and 10B using a component mounting work unit that includes two conveyors, one at the front and one at the rear, two component supply units, and two mounting heads. Note that production line L1 is not limited to a configuration of four component mounting devices M6-M9, and may have one component mounting device M6-M9 or five or more component mounting devices. In component mounting devices M6-M9, two conveyors extending in the board transport direction are arranged in parallel at the front and rear, and two component supply units are arranged on the outside (front and rear) of the two juxtaposed conveyors.

The component supply unit includes a number of tape feeders that feed the components D by tape-feeding the carrier tape holding the components D, and a tray feeder that supplies the components D while switching between trays holding the multiple components D, and supplies the components D to a pick-up position by the mounting head. The mounting head includes a suction nozzle that vacuum-sucks the components D, and performs component mounting work by picking up the components D supplied by the component supply unit and transferring and mounting them on the boards 10A and 10B that are transported, positioned and held by the conveyor. The tape feeders and trays of the component supply unit are set with carrier tapes and trays that hold the specified components D during the changeover so that the specified components D are supplied according to the type of electronic circuit board to be produced (in other words, the components D are arranged).

The component mounting devices M6 to M9 perform component mounting work in various mounting modes based on production data. In the alternating mounting mode, component mounting work is performed in which two mounting heads alternately transfer and mount components onto boards 10A and 10B. In the independent mounting mode, component mounting work is performed in which two mounting heads independently transfer and mount components onto boards 10A and 10B held by two conveyors, respectively. Multiple connected component mounting devices M6 to M9 can perform component mounting work in the same mounting mode, or they can perform component mounting work in separate mounting modes.

In addition, in the double lane production method, two conveyors each carry boards 10A and 10B, and a mounting head transfers and mounts the components to perform component mounting work. In the single lane production method, only one of the two conveyors carries boards 10A and 10B, and a mounting head transfers and mounts the components to perform component mounting work.

When the number of components D held by the component supply unit falls below a specified number while component mounting operations are being repeated in component mounting devices M6 to M9 (when an out-of-component warning occurs), or when components D run out (when out-of-component operations occur), the operator performs operations to replenish components D (replenish carrier tape, replace trays, etc.). In addition, when an equipment error occurs that stops component mounting devices M6 to M9, such as a suction error where the suction nozzle does not properly pick up components D, or an error where the tape feeder stops supplying components D because the carrier tape has become tangled (jammed), the operator performs operations to recover from the equipment error.

In addition, during the changeover work to switch the electronic circuit boards being produced, operators of component mounting devices M6 to M9 perform tasks such as replacing tape feeders, trays, mounting heads, and suction nozzles, and changing the arrangement of the support pins that support the boards 10A and 10B from below during component mounting. In addition, replacement work is performed for optional equipment such as a nozzle changer that holds multiple suction nozzles and automatically replaces them with the suction nozzles attached to the mounting head during component mounting work, a transfer unit that is used to transfer paste to the electrodes of component D before mounting the component D held by the suction nozzle on the boards 10A and 10B, and an electrical characteristic measuring device that measures the electrical characteristics of component D held by the suction nozzle.

In FIG. 2, when performing the above-mentioned tasks, the operator moves to the operation surface (front or rear) of the component mounting device M6-M9 that is the target of the task and performs the task. Note that there are also device errors in which only the component mounting task at the front or rear where the device error occurs stops, while the component mounting task continues without stopping on the opposite side, and device errors that are automatically recovered from by the recovery process of the component mounting devices M6-M9. In this way, the component mounting devices M6-M9 are production devices that have equipment elements such as tape feeders, tray feeders, mounting heads, nozzle changers, transfer units, and electrical characteristic measuring devices, and perform component mounting tasks to produce electronic circuit boards (products).

In FIG. 2, the mounting inspection device M11 is a production device that performs mounting inspection work by inspecting the state of components D mounted on boards 10A and 10B using a mounting inspection work section including a component inspection camera. The reflow device M12 is a production device that performs a board heating work by heating boards 10A and 10B brought into the device using a board heating section to harden the solder on boards 10A and 10B and bond the electrodes of boards 10A and 10B to components D. The board recovery device M14 has two conveyors 9c and 9d, front and rear, which have the function of receiving and recovering boards 10A and 10B, respectively, from the upstream board sorting device M13.

In this way, on production line L1, components D are mounted on board 10A supplied to the front conveyor 9a of board supply device M1, and the board 10A with components D mounted on it is collected by the front conveyor 9c of board recovery device M14. This path becomes the front component mounting lane L1F. Similarly, on production line L1, components D are mounted on board 10B supplied to the rear conveyor 9b of board supply device M1, and the board 10B with components D mounted on it is collected by the rear conveyor 9d of board recovery device M14. This path becomes the rear component mounting lane L1R.

In the double lane production method, component mounting work is carried out in both the front component mounting lane L1F and the rear component mounting lane L1R. In the single lane production method, component mounting work is carried out in only one of the front component mounting lane L1F and the rear component mounting lane L1R. Hereinafter, board 10A on which component D is mounted and board 10B on which component D is mounted will be referred to simply as "electronic circuit board B."

Next, referring to FIG. 3, the configuration of the production system 1 (production capacity estimation system) equipped with the production management device 3 and the production capacity management device 7 will be described. Here, among the multiple functions equipped in the production system 1, the configuration related to the function of generating virtual capacity information for the production lines L1 to L3 based on the operating records of the production devices and estimating the virtual production capacity will be mainly described.

The production system 1 of this embodiment easily estimates the production capacity of electronic circuit boards B (products) produced by production lines with different configurations. Therefore, the production system 1 does not require the input of detailed information on the production equipment and electronic circuit boards B used to estimate the production capacity, but generates the information necessary to estimate the production capacity based on the operation history of the production lines L1 to L3. The configuration information of the electronic circuit boards B used to estimate the production capacity is also generated based on the operation history. Furthermore, the production system 1 estimates the production capacity of the production lines with different configurations mainly based on the production capacity of the component mounting devices M6 to M9, which have a large impact on the production capacity of the production lines L1 to L3.

First, the configuration of the production management device 3 will be described. Note that the production management devices 3 installed on floors F1 to F3 have the same configuration, and floor F1 will be used as an example for the description. An internal communication unit 4, an external communication unit 5, an input unit 11, and a display unit 12 are connected to the production management device 3 installed on floor F1. The production management device 3 is equipped with a production management memory unit 13, a performance collection unit 16, a display processing unit 17, and a control unit (not shown). The production management memory unit 13 is a storage device such as a semiconductor memory or a hard disk drive, and stores operation performance 14, display information 15, etc.

In FIG. 3, the input unit 11 is an input device such as a keyboard, touch panel, or mouse, and is used for inputting operation commands and data. The display unit 12 is a display device such as a liquid crystal panel, and in addition to displaying various data stored in the production management storage unit 13, it also displays various information such as an operation screen and an input screen for operation by the input unit 11. The control unit is, for example, a CPU (Central Processing Unit), and controls the entire production management device 3.

In FIG. 3, the performance collection unit 16 periodically collects performance data of component mounting work from component mounting devices M6-M9 (production devices) on production lines L1-L3 installed on floor F1. The performance data of component mounting work includes information such as the production start date and time, production end date and time (the time when the production device produced the product), the number of pieces produced, the number of work errors, the error rate (frequency), the number of operational errors and their contents, and information on the operators who performed the work on floor F1 (work hours, working hours, number of people, responsibilities, etc.).

The performance collection unit 16 also collects equipment information such as the configuration of the equipment elements of the component mounting devices M6-M9, production data for operating the component mounting devices M6-M9 (production devices) to produce electronic circuit board B (product), the type of electronic circuit board B and its production order, information on the configuration of the electronic circuit board B (board size, number of mounted components, etc.), changeover time, etc. The performance collection unit 16 associates the collected equipment information, operation performance, production data, etc. of the component mounting devices M6-M9 (multiple production devices) with information identifying the production lines L1-L3 and component mounting devices M6-M9 on which the component mounting work was performed, and stores them in the production management storage unit 13 as operation performance 14.

In FIG. 3, the production capacity management device 7 installed in the support center S has functions such as generating virtual capacity information for the production lines L1 to L3 based on information acquired from the production management devices 3 installed on floors F1 to F3 of the customer's factory, and estimating virtual production capacity based on the virtual capacity information. The production capacity management device 7 is connected to an external communication unit 8 and a storage device 20.

The storage device 20 is a semiconductor memory or a hard disk drive, and includes a database 21 that stores information acquired from the production management devices 3 installed on multiple floors F1 to F3. The storage device 20 also stores virtual capacity information 22, standard capacity information 23, virtual production capacity 24, etc. The production capacity management device 7 includes information processing devices such as an acquisition unit 30, a virtual capacity generation unit 31, a virtual capacity setting unit 32, an estimation unit 33, a display information generation unit 34, and a control unit (not shown).

Each information processing device may be configured with independent hardware assets, or may be configured with a common CPU and a program for each information processing. The control unit is, for example, a CPU (central processing unit) that controls the entire production capacity management device 7. Furthermore, the production capacity management device 7 does not need to be configured with a single computer, but may be configured with multiple devices. For example, the storage device 20 and all or part of the information processing devices that make up the production capacity management device 7 may be provided in the cloud via a server.

In FIG. 3, the acquisition unit 30 acquires device information, operation records, production data, operator information, etc. of multiple component mounting devices M6-M9 (production devices) on the production lines L1-L3 installed on each floor F1-F3 from the production management devices 3 on multiple floors F1-F3 via the external communication unit 8. Specifically, the acquisition unit 30 acquires necessary information from the operation records 14 collected by the record collection units 16 of the production management devices 3 installed on the floors F1-F3. The acquisition unit 30 stores the acquired information in the database 21. In the database 21 shown in FIG. 4, the information acquired from the production management devices 3 on multiple floors F1-F3 is stored as information on the operation period (by month) for each floor F1-F3.

In Figures 3 and 4, the virtual capacity generation unit 31 generates virtual capacity information 22 for production lines L1 to L3 from the equipment information and operation records stored in the database 21, and stores it in the storage device 20. In the example of Figure 4, the virtual capacity generation unit 31 generates virtual capacity information 22 in units corresponding to the operation periods (by month) of each floor F1 to F3 stored in the database 21. Specifically, the virtual capacity generation unit 31 generates information on the equipment elements (tape feeders, tray feeders, mounting heads, etc.) of component mounting devices M6 to M9 (production devices) from the equipment information stored in the database 21, and information on the specifications (model, number of conveyors, number of mounting heads, etc.) of component mounting devices M6 to M9.

The virtual capacity generation unit 31 generates information (line tact information) on the time (such as line tact time) required for the production lines L1 to L3 to produce the electronic circuit board B (product) from the operation records stored in the database 21, and information (event information) on events that require operator work on the production lines L1 to L3 (such as replenishing parts D, recovering from equipment errors, etc.) and their occurrence frequency. The virtual capacity generation unit 31 also generates information on the product, such as the type of electronic circuit board B (product) produced, its configuration (such as the size of boards 10A and 10B and the number of mounted components), and production order, from the operation records stored in the database 21. In this way, the storage device 20 is a storage unit that stores the virtual capacity information 22 generated by the virtual capacity generation unit 31 for each operation record.

The production capacity management device 7 of this embodiment also includes an acquisition unit 30 that acquires device information and operation records of multiple component mounting devices M6-M9 (production devices) equipped on the production lines L1-L3 on which electronic circuit boards B (products) are produced, a virtual capacity generation unit 31 that generates virtual capacity information 22 for the production lines L1-L3 from the device information and operation records, and a storage device 20 (storage unit) that stores the generated virtual capacity information 22 for each operation record. This makes it possible to easily generate virtual capacity information 22 used to estimate the production capacity of the production lines L1-L3, which have different configurations.

In Figures 3 and 4, standard capability information 23 stores standard equipment information including catalog values of the specifications (model, number of conveyors, number of mounting heads, CPH, etc.) of component mounting devices M6 to M9 that can be connected to production lines L1 to L3 and used. In addition, standard capability information 23 stores standard equipment element information including catalog values of the specifications of equipment elements (tape feeders, tray feeders, mounting heads, etc.) that can be used by component mounting devices M6 to M9.

The virtual capacity setting unit 32 sets the virtual capacity information 22 of the virtual production lines A1, A2, which differ from the proven production lines L1-L3 in terms of component mounting devices M6-M9 and equipment elements, based on the commands sent from the production management devices 3 on the floors F1-F3 and the virtual capacity information 22 and standard capacity information 23 of the production lines L1-L3. The virtual capacity setting unit 32 stores the set virtual capacity information 22 of the virtual production lines A1, A2 in the storage device 20.

In FIG. 3, the estimation unit 33 estimates the virtual production capacity 24 of the production lines L1 to L3 based on the virtual capacity information 22 of the production lines L1 to L3. The estimation unit 33 also estimates the virtual production capacity 24 of the virtual production lines A1 and A2 based on the virtual capacity information 22 of the virtual production lines A1 and A2. The estimation unit 33 stores the estimated virtual production capacity 24 in the storage device 20. The display information generation unit 34 generates display information 15 for displaying the results of the processing executed in accordance with the command transmitted from the production management device 3 on the floors F1 to F3 (e.g., information on the virtual production lines A1 and A2, the estimated virtual production capacity 24) on the display unit 12 of the production management device 3, and transmits the display information 15 to the production management device 3 that is the source of the command.

The display information 15 transmitted from the production capacity management device 7 is stored in the production management storage unit 13 of the production management device 3 that transmitted the command. The display processing unit 17 provided in the production management device 3 displays the received display information 15 on the display unit 12. For example, the display unit 12 displays the virtual production capacity 24 transmitted from the production capacity management device 7. The display processing unit 17 also displays various screens for creating commands to be transmitted to the production capacity management device 7 on the display unit 12, and supports the input of information and commands by the input unit 11.

Next, with reference to Figures 5 to 10, various screens for executing a simulation of the production capacity of the production lines L1 to L3 that the display processing unit 17 displays on the display unit 12, and examples of information input by the input unit 11 will be described. The production capacity simulations described below are used by managers and owners of factories and floors F1 to F3 when adding new production equipment to increase the production capacity of existing production lines L1 to L3, or when easily estimating the effects of establishing new production lines.

First, referring to FIG. 5, an example of a floor setting screen 40 displayed by the display processing unit 17 on the display unit 12 will be described. The floor setting screen 40 is used when specifying existing production lines L1 to F3 for which virtual capacity information is to be generated. In this example, the existing production lines L1 to L3 are specified for each of the existing floors F1 to F3. The floor setting screen 40 is provided with a menu selection area 41, a floor specification area 42, and a floor information display area 43.

In the menu selection area 41, a floor setting button 41a, a line setting button 41b, and a SIM setting button 41c are arranged in the order of the tasks for which production capacity is to be estimated. When the manager operates the input unit 11 to press the floor setting button 41a, the display processing unit 17 switches the display unit 12 to the floor setting screen 40. Similarly, when the line setting button 41b is pressed, the display processing unit 17 switches the display unit 12 to the line setting (main) screen 44 (Figure 6). Furthermore, when the SIM setting button 41c is pressed, the display processing unit 17 switches the display unit 12 to the simulation setting (floor setting) screen 59 (Figure 9).

In FIG. 5, the floor designation area 42 includes an add floor button 42a and a floor information setting frame 42b. When the add floor button 42a is pressed, the display processing unit 17 switches the display unit 12 to a floor addition screen (not shown). When floors F1 to F3 to be added are designated on the add floor screen, the display processing unit 17 transmits a command to the production capacity management device 7 of the support center S to "generate virtual capacity for the designated floor."

In the production capacity management device 7 that received the command, the acquisition unit 30 acquires, from the production management device 3 installed on the specified floor, the device information and operation record 14 of the component mounting device (production device) equipped in the production line set up on the floor. Next, the virtual capacity generation unit 31 generates virtual capacity information 22 of the production line from the acquired device information and operation record 14. Next, the display information generation unit 34 generates display information 15 from the generated virtual capacity information 22 for display on the display unit 12 of the production management device 3 that sent the command, and transmits it to the production management device 3 that sent it. The transmitted display information 15 is stored in the production management memory unit 13.

In FIG. 5, the floor information setting frame 42b displays information sent from the production capacity management device 7, such as the floor names and number of lines of floors F1 to F3 to which virtual capacity information 22 has been added. In this example, virtual capacity information 22 has been added for floor F1 with three lines, floor F2 with seven lines, and floor F3 with two lines. When the delete button corresponding to the floor name is pressed, the virtual capacity information 22 for that floor is deleted from the floor settings. When the edit button is pressed, the display processing unit 17 switches the display unit 12 to a line setting (main) screen 44 for changing the configuration of that floor.

The floor information display area 43 includes a floor information display frame 43a that displays information sent from the production capacity management device 7. The floor information display frame 43a includes a floor selection tab 43b, a line configuration display field 43c, and line selection buttons 43d and 43e. When any of the floor selection tabs 43b is selected, floors F1 to F3 displayed in the line configuration display field 43c are changed to the production lines of the selected floor. When the line selection buttons 43d and 43e are pressed, the production lines L1 to L3 displayed in the line configuration display field 43c are changed in order.

In this example, in FIG. 5, the line configuration display field 43c displays the component mounting devices M6 to M9 equipped on the production line L1 of the floor F1 shown in FIG. 2 in the order in which they are connected. Component mounting devices M6 and M7 are component mounting devices of the "D1" model, and component mounting devices M8 and M9 are component mounting devices of the "D2" model. A component mounting device of the "D1" model has two conveyors and two mounting heads at the front and rear that are aligned with the board transport direction, with two stages and four tables. A component mounting device of the "D1" model has two conveyors and one mounting head at the front and rear, with one stage and two tables.

For component mounting devices M6 to M9 displayed in the line configuration display field 43c, a table configuration display 43f showing the configuration of the front and rear feeder tables and a mounting head configuration display 43g showing the configuration of the mounting heads attached to the front and rear are displayed. In the table configuration display 43f, "c17" indicates that a cart capable of mounting 17 tape feeders is installed, "c30" indicates that a cart capable of mounting 30 tape feeders is installed, "f13" indicates that a cart capable of mounting 13 tape feeders is installed, and "t20" indicates that a tray feeder capable of mounting 20 trays is installed. In the mounting head configuration display 43g, "H16" indicates that a mounting head equipped with 16 suction nozzles is installed, "H8" indicates that a mounting head equipped with 8 suction nozzles is installed, and "H3" indicates that a mounting head equipped with 3 suction nozzles is installed.

In this way, the virtual capacity information 22 includes the names of the component mounting devices (production devices) that make up the production line (virtual production line) set up from multiple operation records 14, the equipment elements required to produce the electronic circuit board B (product) possessed by the component mounting devices, and information about the component mounting devices.

In FIG. 5, when the line setting button 41b is pressed, the display processing unit 17 causes the display unit 12 to display a line setting (main) screen 44. Next, an example of the line setting (main) screen 44 will be described with reference to FIG. 6. The line setting (main) screen 44 is used when setting the configuration of a production line for estimating production capacity. In FIG. 6, information on existing production lines L1 to L3 on floor F1 is displayed. The line setting (main) screen 44 has a menu selection area 41, a line designation area 45, and a line information display area 46.

In FIG. 6, the line designation area 45 includes an add line button 45a and a line information setting frame 45b. When the add line button 45a is pressed, the display processing unit 17 switches the display unit 12 to a line setting (equipment addition) screen 47 (FIG. 7). The line information setting frame 45b displays information such as the number of mounting devices, number of stages, lanes, mounting mode, and production method of production lines L1 to L3 on floor F1, which are included in the virtual capacity information 22. For example, production line L1 has four dual-lane component mounting devices connected together, the number of stages is "6," the mounting mode is "alternate mounting mode," and the production method is "both lane production."

When the delete button corresponding to the line name is pressed in the line information setting frame 45b, the virtual capacity information 22 for that production line is deleted. When the edit button is pressed, the display processing unit 17 switches the display unit 12 to a line setting (equipment addition) screen 47 (Figure 7) for changing the configuration of that production line. The line information display area 46 contains a line information display frame 46a. The line information display frame 46a is provided with a line selection tab 46b and a line configuration display field 46c. When any of the line selection tabs 46b is selected, the configuration of component mounting devices M6 to M9 for the selected production lines L1 to L3 is displayed in the line configuration display field 46c.

In FIG. 6, when the add line button 45a is pressed, the display processing unit 17 causes the display unit 12 to display a line setting (equipment addition) screen 47. Next, an example of the line setting (equipment addition) screen 47 will be described with reference to FIG. 7. The line setting (equipment addition) screen 47 is used when adding a component mounting device (production equipment) to an existing production line, or when adding a new production line. FIG. 7 shows an example of adding a new production line to floor F1.

When the display processing unit 17 switches the display unit 12 to the line setting (equipment addition) screen 47, it sends a command to the production capacity management device 7 of the support center S to "send standard capacity information." In the production capacity management device 7 that receives the command, the display information generation unit 34 generates display information 15 (standard list) for the sending production management device 3 to display on the display unit 12 based on the standard capacity information 23 stored in the storage device 20, and sends it to the sending production management device 3. The sent display information 15 is stored in the production management storage unit 13.

In FIG. 7, the line setting (equipment addition) screen 47 has a menu selection area 41, a step switching area 48, and a line setting area 49. The step switching area 48 has a line name input field 48a, a step display frame 48b, a previous button 48c, and a next button 48d. The line name of the newly created production line (new line LX) is input in the line name input field 48a. When production equipment (component mounting devices) are added to existing production lines L1 to L3, the line name input field 48a displays the line names of the existing production lines L1 to L3 as initial values. The step display frame 48b displays the line setting work in step order. When the previous button 48c or the next button 48d is operated, the display switches to the line setting screen for the previous step or the next step.

In the line setting area 49, a line configuration setting frame 50, a line configuration information display frame 51, a production equipment selection frame 52, and a production equipment information display frame 53 are arranged. The manager operates the input unit 11 to select one of the component mounting devices (production equipment) displayed in the production equipment selection frame 52, and repeats the task of moving it (drag-and-drop) to a specified position in the line configuration setting frame 50, thereby setting the configuration of the production line (new line LX) in the line configuration setting frame 50.

This operation allows the manager to easily set and change the configuration of a new production line (hereinafter referred to as a "virtual production line") for which production capacity is to be estimated. The line configuration information display frame 51 displays the configuration information of the virtual production line set in the line configuration setting frame 50 (total of stages, total of mounting heads, total of tape feeders, total of CPHs, etc.). When the configuration of the virtual production line is changed by adding or deleting component mounting devices in the line configuration setting frame 50, the configuration information of the virtual production line in the line configuration information display frame 51 is changed accordingly.

In FIG. 7, the production equipment selection frame 52 is provided with list selection tabs 52a. When any of the list selection tabs 52a is selected, the list of component mounting devices (production equipment) displayed in the production equipment selection frame 52 is changed. When the "Standard List" tab is selected, a standard list created from the standard capacity information 23 transmitted from the production capacity management device 7 is displayed. When the "Floor F1" tab is selected, a list of component mounting devices (production equipment) that have a history of use and are included in the virtual capacity information 22 of floor F1 is displayed. The same is true for the "Floor F2" tab and the "Floor F3" tab.

In the production equipment selection frame 52, the catalog value of the model and the chip per hour (CPH), which is the number of components that can be mounted per unit time, is displayed as information on the component mounting device (production equipment). CPH is information calculated from the number of components mounted on the electronic circuit board B and the production time (line tact), etc. In other words, CPH is information on the number of electronic circuit boards B that the component mounting device produces in a specified period of time. The order of the component mounting devices displayed can be changed by selecting the "display/sort order" condition from the drip-down list 52b provided in the production equipment selection frame 52. When the forward buttons 52c and 52d provided in the production equipment selection frame 52 are pressed, the displayed component mounting devices are changed in order. In the production equipment information display frame 53, detailed information on the component mounting device selected in the production equipment selection frame 52 (here, model D1) is displayed.

In FIG. 7, when setting up a new virtual production line, the line configuration setting frame 50 is initially displayed as "blank". When making changes to existing production lines L1 to L3, such as by adding a component mounting device, the line configuration setting frame 50 initially displays the configuration of the existing production lines L1 to L3. When the Next button 48d is pressed, the display processing unit 17 causes the display unit 12 to display the line setting (equipment options) screen 54 (FIG. 8).

Next, referring to FIG. 8, an example of the line setting (equipment options) screen 54 will be described. The line setting (equipment options) screen 54 is used when setting or changing equipment elements (equipment options) of component mounting devices (production equipment) that make up a virtual production line. FIG. 8 shows an example of setting equipment options for a new virtual production line (new line LX). For component mounting devices in the standard list, predetermined standard equipment elements are set as initial values. Furthermore, for component mounting devices included in the virtual capacity information 22, equipment elements at the time of production are set as initial values. The line setting (equipment options) screen 54 has a menu selection area 41, a step switching area 48, a line configuration display area 55, and an equipment option setting area 56.

In the line configuration display area 55, a line configuration display frame 57 is arranged. In the line configuration display frame 57, the component mounting devices (production equipment) that make up the virtual production line are displayed in the order in which they are connected. In the equipment option setting area 56, an equipment option setting frame 58 is arranged. In the equipment option setting frame 58, drag buttons are arranged for selecting and setting equipment options (equipment elements) for each table (TBL) of component mounting devices that make up the virtual production line. Selectable equipment options include the type of mounting head (head), whether or not to use (type) a nozzle changer (changer), the type of cart or tray feeder to be attached to the feeder table, whether or not to use a transfer unit, and whether or not to use an electrical characteristic measuring device.

In FIG. 8, when the SIM setting button 41c in the menu selection area 41 is pressed, the display processing unit 17 switches the display unit 12 to a simulation setting (floor setting) screen 59 (FIG. 9). When switching the display unit 12 to the simulation setting (floor setting) screen 59 (FIG. 9), the display processing unit 17 transmits information about the virtual production line set on the line setting (equipment addition) screen 47 and the line setting (equipment options) screen 54 to the production capacity management device 7 of the support center S.

In the production capacity management device 7 that has received the command, the virtual capacity setting unit 32 sets the virtual capacity information 22 of the virtual production line based on the received virtual production line information, the virtual capacity information 22 of the existing production lines L1 to L3 stored in the storage device 20, and the standard capacity information 23. In this way, the number of production devices (component mounting devices) and the equipment elements required to produce the product (electronic circuit board B) owned by the production devices are input from the input unit 11 (input/output terminal device) of the production management device 3. The virtual capacity setting unit 32 sets the virtual capacity information 22 of the virtual production line based on the information input by the input unit 11. The virtual capacity setting unit 32 also sets the virtual capacity information 22 of the virtual production line based on the virtual capacity information 22 of the multiple production lines L1 to L3.

Next, an example of the simulation setting (floor setting) screen 59 will be described with reference to FIG. 9. The simulation setting (floor setting) screen 59 is used when setting simulation conditions for estimating the production capacity of a floor including a virtual production line. The simulation setting (floor setting) screen 59 includes a menu selection area 41, a step switching area 60, an existing floor selection area 61, and a new floor setting area 62.

In the step switching area 60, there are arranged a simulation name input field 60a, a step display frame 60b, a previous button 60c, and a next button 60d. In the simulation name input field 60a, the name of the simulation setting to be newly created (New Simulation (1)) is input. In the step display frame 48b, the simulation setting work is displayed in step order. When the previous button 60c or the next button 60d is operated, the display switches to the line setting screen for the previous step or the next step.

In FIG. 9, an existing floor selection area 61 includes an existing floor selection frame 63 and an existing floor information display frame 64. In the existing floor selection frame 63, a floor F1 to F3 equipped with an existing production line that is to be used as a comparison source when estimating the production capacity of the virtual production line is selected from a drop-down list. In this example, floor F1 is selected. The existing floor information display frame 64 displays configuration information of the production lines L1 to L3 equipped on the selected floor F1. The configuration information of the production lines L1 to L3 includes the line name, CPH, total number of component mounting devices (devices), total number of stages (stages), whether the transport conveyor is dual or single (lanes), whether the mounting mode is alternating mounting mode or independent mounting mode (mounting), whether the production method is both lanes or one lane (production), etc.

In FIG. 9, the new floor setting area 62 includes an add new line button 65 and a new floor information display frame 66. The new floor information display frame 66 displays the configuration of the new floor, including a virtual production line that estimates production capacity. The configuration information of the production line is the same as that of the existing floor information display frame 64. When the delete button located in the new floor information display frame 66 is pressed, the corresponding production line is deleted from the configuration of the new floor.

When the Add New Line button 65 is pressed, a screen is displayed (not shown) for selecting a virtual production line or existing production lines L1 to L3 to be added to the new floor. When a production line is added, configuration information for the added production line is displayed in the new floor information display frame 66. In this example, the new floor is configured with the existing production line L1 (line L1), a virtual production line (line L2+D3) in which one component mounting device (D3) has been added to the existing production line L2, the existing production line L3 (line L3), and a virtual production line (new line LX).

In FIG. 9, when the Next button 60d is pressed, the display processing unit 17 displays a simulation setting (production performance selection) screen (not shown) on the display unit 12. In the simulation setting (production performance selection) screen, an electronic circuit board B (product) to be produced on the new floor is set as a condition for estimating production capacity. This electronic circuit board B is selected from electronic circuit boards B with production performance included in the virtual capacity information 22. At that time, the production order of the type of electronic circuit board B (product) is also set. In this way, by selecting from electronic circuit boards B with production performance, it is possible to reduce the effort of setting detailed configuration information of the electronic circuit board B to estimate production capacity.

When the Next button 60d is pressed on the simulation setting (production performance selection) screen, the display processing unit 17 causes the display unit 12 to display a simulation setting (condition setting) screen (not shown). On the simulation setting (condition setting) screen, the number of electronic circuit boards B (products) to be produced, the production time, the implementation mode for each production line, the production method, the number of operators in charge of the new floor, etc. are set. The number of operators is specified on a floor-by-floor basis, and during the simulation, the estimation unit 33 allocates the operators to each production line in a predetermined procedure. For example, the estimation unit 33 allocates the number of operators by simply dividing the number of production lines, or by weighting it by the number of production devices each production line has.

When the Next button 60d is pressed on the simulation setting (condition setting) screen, the display processing unit 17 displays the simulation setting (execution) screen (not shown) on the display unit 12. The simulation setting (execution) screen has a start button arranged to start a simulation that specifies production capacity. When the start button is pressed, the display processing unit 17 transmits configuration information for the new floor, simulation condition information, and the like to the production capacity management device 7 of the support center S.

In the production capacity management device 7 that has received the information, the estimation unit 33 estimates the virtual production capacity 24 of the virtual production line included in the new floor and the existing production lines L1 to L3 based on the received information and the virtual capacity information 22 of the virtual production line and the existing production lines L1 to L3 stored in the storage device 20. When the estimation of the virtual production capacity 24 is completed, the display information generation unit 34 generates display information 15 (simulation results) for the transmission source production management device 3 to display on the display unit 12, and transmits it to the transmission source production management device 3. When the display information 15 is received, the display processing unit 17 causes the display unit 12 to display the simulation setting (display) screen 67 (Figure 10).

Next, an example of the simulation setting (display) screen 67 will be described with reference to FIG. 10. The simulation setting (display) screen 67 has a menu selection area 41, a step switching area 60, and a simulation result display area 68. The simulation result display area 68 has a simulation result display frame 69 and a line-by-line display button 70. The simulation result display frame 69 displays the estimated result (#1) of the virtual production capacity 24 based on the performance of the current floor F1, the estimated result (#2) of the virtual production capacity 24 as the comparison source in which the production time is adjusted to the conditions of the new floor with the configuration of the current floor F1, the estimated result (#3) of the virtual production capacity 24 of the new floor as the comparison target, and the comparison results between the comparison source and comparison target.

In the simulation result display frame 69 shown in FIG. 10, the estimated results of the production lines are displayed in a combined form by floor. That is, the display unit 12 displays the virtual production capacity 24 by floor unit having multiple production lines. When the line-specific display button 70 is pressed, the simulation result display frame 69 displays the estimated results for each production line before the combination. In the display information of the simulation result display frame 69, "catalog CPH" is the CPH value under ideal conditions where there is no production stop due to resupply work, recovery work, etc. "Floor opening and closing time" is the time from the start of production to the end of production on the floor. "Line opening and closing time" is the combined value of the time from the start of production to the end of production on each production line. "Line operating rate" is the percentage of time that each production line is operating without stopping. It is also possible to display on one display screen without having the line-specific display button 70.

"Floor CPH" is the CPH value that takes into account the configuration of electronic circuit board B and production stoppages due to resupply work, recovery work, etc. "Area productivity" is the floor CPH per unit floor area. "Number of setup parts" is the number of parts that require setup changeover. "Number of setup carts" is the number of carts that require setup changeover. The simulation result display frame 69 also displays the number of carts required for production (number of resource carts), the number of operators required on the floor, the total time for operator work, etc.

In this way, the display unit 12 displays information about the virtual production line, such as the configuration of the virtual production line (Figures 7 and 8), virtual capacity information 22 of the virtual production line (Figure 7), and virtual Xian capacity 24 of the virtual production line (Figure 10). The production capacity management device 7 also includes an acquisition unit 30 that acquires device information and operation records 14 of the production devices (component mounting devices), a virtual capacity generation unit 31 that generates virtual capacity information 22 of the production lines L1 to L3 from the device information and operation records 14, and a storage unit (storage device 20) that stores the virtual capacity information 22 for each operation record. This makes it possible to easily generate information (virtual capacity information 22) used to estimate the production capacity of the production lines L1 to L3, which have different configurations.

Next, following the flow of Figures 11 and 12, a production capacity estimation method (production capacity estimation program) for estimating the production capacity of electronic circuit boards B (products) produced by production lines L1 to L3 consisting of multiple component mounting devices (production devices) will be described. First, virtual capacity information 22 of the production line is generated (ST1: virtual capacity information generation process).

In FIG. 12, in the virtual capacity information generation process (ST1), the acquisition unit 30 acquires the device information and operation records 14 of the multiple component mounting devices M6-M9 (production devices) that make up the existing production lines L1-L3 (ST11: acquisition process). Next, the virtual capacity generation unit 31 generates virtual capacity information 22 for the production lines L1-L3 from the device information and operation records 14, including information on the equipment elements of the component mounting devices M6-M9, information on the specifications of the component mounting devices M6-M9, information on the time required for the production lines L1-L3 to produce the electronic circuit board B (product), and information on events that require operator work on the production lines L1-L3 and their occurrence frequency (ST12: virtual capacity information generation process).

The virtual capacity generation unit 31 then stores the generated virtual capacity information 22 in the storage device 20 (storage unit) for each operation record (ST13: storage step). Next, the acquisition step (ST11), virtual capacity information generation step (ST12), and storage step (ST13) are repeatedly executed until virtual capacity information 22 is generated for all production lines L1 to L3 (No in ST14). In this way, the acquisition step (ST11), virtual capacity information generation step (ST12), and storage step (ST13) constitute a production capacity management method (production capacity management program) by the production capacity management device 7. The production capacity management method makes it possible to easily generate information (virtual capacity information 22) used to estimate the production capacity of the production lines L1 to L3, which have different configurations.

In FIG. 11, when virtual capacity information 22 for production lines L1 to L3 is generated (Yes in ST14), the display processing unit 17 receives input from the input unit 11 of information such as the number of component mounting devices (production devices) that make up the virtual production line, the equipment elements of the component mounting devices, and information on the electronic circuit boards B (products) produced in the virtual production line (ST2: information input process) (FIGS. 7 to 9). Next, the virtual capacity setting unit 32 sets the virtual capacity information 22 for the virtual production line based on the information input in the information input process (ST2) (ST3: virtual production line setting process).

The estimation unit 33 then estimates the virtual production capacity 24 of the virtual production line based on the virtual capacity information 22 of the virtual production line, and estimates the virtual production capacity 24 of the production lines L1 to L3 based on the virtual capacity information 22 of the existing production lines L1 to L3 (ST4: virtual production capacity estimation process). The display processing unit 17 then displays the estimated virtual production line and the virtual production capacity 24 of the existing production lines L1 to L3 on the display unit 12 (ST5: virtual production capacity display process) (Figure 10).

When changing the configuration of the virtual production line or the simulation conditions (Yes in ST6), the information input process (ST2), the virtual production line setting process (ST3), the virtual production capacity estimation process (ST4), and the virtual production capacity display process (ST5) are executed repeatedly. This makes it possible to easily estimate the production capacity of a production line (virtual production line) with a different configuration.

As described above, the production system 1 of this embodiment is a production capacity estimation system that includes an acquisition unit 30 that acquires device information and operation records 14 of multiple production devices (component mounting devices), a virtual capacity generation unit 31 that generates virtual capacity information 22 for the production lines L1 to L3 from the device information and operation records, including information on the equipment elements of the production devices, information on the specifications of the production devices, information on the time required for the production lines L1 to L3 to produce the products (electronic circuit boards B), and information on events that require operator work on the production lines L1 to L3 and information on their occurrence frequency, an estimation unit 33 that estimates virtual production capacity 24 for the production lines L1 to L3 based on the virtual capacity information 22, and a display unit 12 that displays the virtual production capacity 24.

This makes it possible to easily estimate the production capacity of production lines with different configurations (virtual production lines).

In the above embodiment of the production system 1 (production capacity estimation system), the support center S (production capacity management device 7) is installed outside the factory having floors F1 to F3, but the support center S (production capacity management device 7) may also be installed inside the factory.

In the above, an example was described in which the production system 1 includes production lines L1 to L3 that mount components D on boards 10A and 10B to produce electronic circuit boards B, but the production lines L1 to L3 included in the production system 1 are not limited to this. For example, the production lines may be semiconductor production lines that manufacture semiconductors, assembly production lines that assemble workpieces (products) such as electrical machinery and equipment, general machinery and equipment, and the like, or food processing lines that produce processed food products.

The production capacity management device, production capacity management method, and production capacity management program of the present invention have the effect of easily estimating the production capacity of production lines with different configurations, and are useful in the field of component mounting, where components are mounted on boards.

7 Production capacity management device B Electronic circuit board (product)
F1-F3 Floors L1-L3 Production lines M6-M9 Component mounting equipment (production equipment)

Claims (7)

an acquisition unit that acquires device information and operation records of a plurality of production devices provided in a production line on which a product is produced;
a virtual capacity generating unit that generates virtual capacity information of the production line based on the equipment information and the operation record, the virtual capacity information including information on the equipment elements of the production equipment, information on the specifications of the production equipment, information on the time required for the production line to produce the product, and information on events that require operator work on the production line and their occurrence frequency;
a storage unit that stores the generated virtual capacity information for each operation result. The production capacity management device according to claim 1, wherein the operation record includes at least one of production data for operating the production device to produce the product, production sequence information for the type of product, and the time when the production device produced the product. The production capacity management device according to claim 1 or 2, wherein the virtual capacity information includes the names of the production devices constituting the virtual production line set from the multiple operation records, the equipment elements required to produce the products possessed by the production devices, and information on the production devices. a virtual capacity setting unit that sets virtual capacity information of the virtual production line from at least one of the number of the production devices, the equipment elements of the production devices, and the information of the products to be produced, which are received from an input/output terminal device;
4. The production capacity management device according to claim 3, wherein the storage unit stores the virtual capacity information of the set virtual production line. The production capacity management device according to any one of claims 1 to 4, wherein the product is an electronic circuit board, the production device is a component mounting device, and the virtual capacity information includes information regarding the number of the electronic circuit boards that the component mounting device produces in a predetermined period of time. Acquire equipment information and operation records of a plurality of production equipments provided in a production line on which the product is produced;
generating virtual capacity information for the production line, the virtual capacity information including information on the equipment elements of the production equipment, information on the specifications of the production equipment, information on the time required for the production line to produce the product, and information on events that require operator work on the production line and their occurrence frequency, based on the equipment information and the operation record;
storing the generated virtual capacity information in a storage unit for each operation record. A production capacity management program for causing a computer to execute the production capacity management method of claim 6.

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