JP2004102351A - Simulation model creating method and device, and simulation model evaluating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically create a simulation model by quickly reflecting the change of the performance of equipment and the number of machines. <P>SOLUTION: The model creation element data of a process line having at least one resource "1", "2" composed of the equipment processing a work, or the equipment and a worker, a pre-transporting system 9 and an after-transporting system 10 for transporting the work before and after the resources "1", "2", and a buffer 11 for temporarily storing the work processed by the resources "1", "2" are stored, and the parameter data relating to the work, the resources "1", "2", the pre-transporting system 9, the after-transporting system 10 and the buffer 11 are input to the model creation element data to automatically create the simulation model of the process line. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a simulation model generation method and apparatus for generating a simulation model of an assembly process flow line, for example, and a simulation model evaluation apparatus.
[0002]
[Prior art]
2. Description of the Related Art An assembly process line for various products includes equipment for performing processing such as cutting and cutting of a work, and an operator for processing the work for the equipment, and a plurality of these equipments are connected. In this assembly process line, design changes such as a change in equipment capacity and a change in the number of equipment are made due to an improvement in product productivity and a change in product type.
[0003]
When the design change is performed, it is confirmed whether the operation rate in the assembly process line is a value commensurate with the design change. In this checking operation, a simulation model of the assembly process line whose design has been changed is created and a simulation is executed. From this simulation result, it is evaluated whether the operation rate of the assembly process line is a value suitable for the design change. Such evaluation of the assembly process line is performed every time the design of the assembly process line is changed.
[0004]
[Problems to be solved by the invention]
However, since the evaluation of the assembly process line is performed each time the design of the assembly process line is changed, a simulation model of the assembly process line whose design has been changed must be created each time. At this time, the simulation model must be changed by hard-coding the capacity and the number of facilities in the model by a designer or the like manually.
[0005]
For this reason, the designer changes the simulation model every time the design process of the assembly process line is changed, and furthermore, as a result of the simulation, if the operation rate of the design process-changed assembly process line is not a value commensurate with the design change, It is necessary to change the simulation model again and execute the simulation. That is, the designer has to repeat the simulation model changing operation until the operation rate of the assembly process line becomes a value commensurate with the design change. From such a thing, it takes time to design and develop the assembly process line when the design is changed, and more designers and the like are involved in the design and development.
[0006]
Therefore, an object of the present invention is to provide a simulation model generation method, a simulation model generation apparatus, and a simulation model evaluation apparatus capable of automatically generating a simulation model by quickly reflecting a change in the capacity or the number of facilities.
[0007]
[Means for Solving the Problems]
The present invention relates to a process comprising a facility for processing a work or at least one resource consisting of the facility and a worker, a transport system for transporting the work before and after the resource, and a buffer for temporarily storing the work processed by the resource. A simulation model generation method characterized by storing model generation element data of a line and automatically generating a simulation model of a process line by inputting parameters relating to a work, a resource, a transport system, and a buffer to the model generation element data. is there.
[0008]
According to the simulation model generation method of the present invention, at the time of automatically generating a simulation model, the types of equipment are classified according to parameters.
[0009]
In the simulation model generation method according to the present invention, the type of equipment is determined based on a parameter relating to a unit of work, a parameter relating to an operator, and a parameter relating to batch processing of a workpiece.
[0010]
In the simulation model generation method of the present invention, the form of the equipment includes: equipment for dividing the work into a plurality of works; equipment for dividing the work and integrating the works after the work; equipment for not dividing the work; And a facility for integrating the work.
[0011]
In the simulation model generation method according to the present invention, the process line is a flow line.
[0012]
The present invention relates to a process comprising a facility for processing a work or at least one resource consisting of the facility and a worker, a transport system for transporting the work before and after the resource, and a buffer for temporarily storing the work processed by the resource. A database for storing model generation element data of the line, input means for inputting parameters relating to the work, resources, transport system, and buffer of the model generation element data; and a process line based on the parameters input from the input means. A simulation model generating apparatus comprising: an automatic generation unit that automatically generates a simulation model.
[0013]
In the simulation model generation device according to the present invention, the automatic generation means classifies equipment types according to parameters when automatically generating a simulation model.
[0014]
In the simulation model generation device according to the present invention, the automatic generation means determines the type of equipment based on a parameter relating to a work unit, a parameter relating to a worker, and a parameter relating to batch processing of a work.
[0015]
In the simulation model generating apparatus according to the present invention, the automatic generating means divides the unit of the work into a unit for dividing the unit of the work, a unit for dividing the unit of the work and returning to the original unit afterward, Equipment that does not work and equipment that integrates separate work units.
[0016]
The present invention relates to a process comprising a facility for processing a work or at least one resource consisting of the facility and a worker, a transport system for transporting the work before and after the resource, and a buffer for temporarily storing the work processed by the resource. A database for storing model generation element data of the line, input means for inputting parameters relating to the work, resources, transport system, and buffer of the model generation element data; and a process line based on the parameters input from the input means. Automatic generating means for automatically generating a simulation model; a simulator for executing a simulation of the simulation model generated by the automatic generating means; and a notifying means for notifying a simulation result of the simulator as a process line evaluation target. Features stains A configuration model evaluation device.
[0017]
In the simulation model evaluation device according to the present invention, the notifying unit analyzes the simulation result and obtains at least a Gantt chart, a journal, and an operation rate for the simulation model.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0019]
FIG. 1 is a configuration diagram of a simulation model evaluation device. This simulation model evaluation device is applied to a flow line as a process line.
[0020]
The input unit 1 is, for example, a keyboard or a mouse. When a designer operates a keyboard or a mouse, the input unit 1 inputs parameter data for generating a simulation model of a process line by the operation. This parameter data is stored in the input database 2. The format of the parameter data may be any format.
[0021]
The parameter data is roughly divided into, for example, a product (work) type, a process, equipment, an operator, and an operation time zone, and there are 11 types. FIG. 2 shows the correlation between the parameter data stored in the input database 2. Of these, the equipment performs processing such as cutting and cutting of the work. The process has each transport system before and after the equipment.
[0022]
The input database 2 includes a table name, an index, an item type, and an item. For example, in the table name “type”, a star is stored in the index, and a key is represented by the star. “S” or “I” is stored in the item type, and “S” represents a character string type and “I” represents an integer type. The “type” is stored in the item. The arrow “→” indicates a relation between data, and indicates a one-to-many relationship.
[0023]
The model evaluation unit 3 reads the parameter data stored in the input database 2, generates a simulation model of the process line based on the parameter data, executes the simulation, and evaluates the process line after the design change or the like.
[0024]
The data conversion unit 4 reads various types of parameter data stored in the input database 2 and converts the format of the parameter data into a format that can be easily processed by the model evaluation unit 3. The parameter data converted by the data conversion unit 4 is stored in the conversion database 5.
[0025]
The automatic generation unit 6 stores model generation element data as shown in FIG. 3 for generating a simulation model of a process line, and converts parameter data stored in the conversion database 5 for the model generation element data. A simulation model of a process line is automatically generated by inputting.
[0026]
Model generation element data is stored in the model database 7. The model generation element data includes, in one process line A, a resource group 8 (which includes equipment or the equipment and the worker as described later) 8 for processing the work, and transporting the work before and after the resource group 8 And a buffer 11 for temporarily storing the work processed by the resource group 8.
[0027]
Although one process A is shown here, a plurality of process lines are connected in the flow line. In FIG. 3, the subsequent stage of the process line A is shown as the next process.
[0028]
This process line A has the following features. The process line A is, for example, an assembly line of equipment and workers.
[0029]
The process line A is divided into two areas, for example, a clean room 12 and a dustproof room 13 as shown in FIG.
[0030]
The process line A includes a magazine 14, a work sheet 15 and a work board 16 as shown in FIG. 5 as a unit to be processed in the equipment and a unit for transportation before and after the equipment. The sheet 15 holds, for example, three substrates 16, and obtains three substrates 16 by dividing the sheet 15 into three. The magazine 14 stores a plurality of sheets 15 or substrates 16. Therefore, when processing and transporting the work, the work is performed for each work of the magazine 14, the sheet 15, or the substrate 16.
[0031]
The process line A differs depending on the product type.
[0032]
In the processing of the work in the equipment, there are a processing performed by the equipment alone and a processing performed by an operator.
[0033]
The resource group 8 refers to equipment for processing a work, or the equipment and a worker as resources “1” and “2”, and includes a plurality of resources “1” and “2” to form a resource group 8. Since it is assumed that there are a plurality of resources “1” and “2” that can perform one process, the expression “resource group 8” is used. Further, the resources “1” and “2” also indicate those obtained by adding a work table to the equipment.
[0034]
The model generation element data is provided with data on the work, the process line A, the resource group 8, the worker, the operating time, the lead time, and the process line A.
[0035]
Regarding the work, data on a product to be conveyed and processed on the simulation model of the process line A is referred to as a work, start date, start date of the start work, for example, at 0:00 AM, The magazine 14 inserted into the line A is provided with data containing, for example, 99 substrates 16.
[0036]
As for the process line A, as shown in FIG. 6, each setup before and after, net processing, and transport are collectively referred to as a process line A, and each of these processes has its own man-hour (each setup time before and after, net processing time, transport 6), data that is given by the same worker in the equipment before and after each transfer and each setup before and after the equipment as shown in FIG. The same data is continuously processed by the same worker in the net processing, the data in which the post-buffer 11 exists for each process, and the input order of the work from the buffer 11 to the process is the data on a first-in first-out (FIFO) basis. Has been given.
[0037]
FIG. 6 shows the time occupancy relationship between the equipment and the worker. The equipment operates during the transfer time, the pre-setup time, the net processing time, the post-setup time, and the transfer time. Work is performed during setup time, post-setup time, and transport time.
[0038]
In addition, the work table operates during the transfer time, pre-setup time, net processing time, post-setup time, and transfer time, and the operator performs the same transfer time, pre-setup time, net processing time, Work during setup time and transport time.
[0039]
As for the resource group (equipment and workbench) 8, data assuming that the resource occupies the entire time of the process as shown in FIG. 6 and the transport unit between the resource and the buffer before and after as shown in FIG. , And data having a batch size as the resources of the batch process as shown in FIG.
[0040]
As for the worker, data is given that the worker can perform all the work in the process in charge, and data that has a shift of, for example, a week.
[0041]
Regarding the operation time and lead time, even if it is the break time, the worker continues the work until the current work is completed, the data including the break time in the lead time, the utilization rate of equipment and workers Is given as data obtained by dividing the actual work time by the operating time.
[0042]
Regarding the process line A, as shown in FIG. 4, data in which one line in one area of the clean room 12 or the dustproof room 13 is a line unit, and only one type of workpiece flows in one line. The data, the type that flows through the process line, is changed to the parameter data shown in FIG. 2, the type is changed after the work is wiped out of the process line, and the setup is performed in accordance with the type change in the current process line. (Time, personnel) are given data that is not considered in the simulation as a margin for order entry.
[0043]
The automatic generation unit 6 automatically generates a simulation model of the process line A by inputting parameter data to the model generation element data as shown in FIG. 3, and this parameter data is stored in the conversion database 5 shown in FIG. The stored parameter data is, for example, as follows.
[0044]
Referring to FIG. 3, the process line A includes, for example, a process name, a man-hour, and a setup before and after.
[0045]
The resource group 8 includes, for example, a facility name, a batch size, a method of assembling a batch, a unit of processing, presence / absence of an operator, and the like.
[0046]
The pre-transport system 9 includes, for example, a pre-transport unit and a pre-transport time.
[0047]
The post-transport system 10 includes, for example, a post-transport unit and a post-transport time.
[0048]
The buffer 11 has, for example, a buffer capacity.
[0049]
In addition, the automatic generation unit 6 includes a facility type classification unit 14 that classifies the type of equipment according to parameters at the time of automatically generating a simulation model, and a facility type classification unit 15 that classifies the form of the equipment.
[0050]
The equipment type classification unit 14 classifies the equipment types of the assembly process flow line into a total of 24 types according to a combination of the following three conditions, for example.
[0051]
Condition 1: Equipment form (division, division integration, non-division, integration described later)
Condition 2: Presence or absence of workers in net processing
Condition 3: The presence / absence of batch assembly and the manner of batch assembly.
[0052]
The equipment type classification unit 14 defines the following parameter data in order to classify equipment types. The parameters relating to the unit of the work include, for example, a work unit in the processing and a work transfer unit in the transfer before and after the target facility.
[0053]
The parameter relating to the worker is, for example, the presence or absence of the worker. The parameters relating to the batch processing include, for example, the presence / absence of batch assembling and how to assemble the batch (whether to keep the batch amount).
[0054]
In addition, the presence / absence of batch assembling and how to assemble a batch are parameters that are meaningful only in the process line in which batch assembling is performed. Indicates that the process line is not assembled.
[0055]
Therefore, the equipment type classification unit 14 determines the classification of the equipment based on the presence or absence of a worker, and there is a worker on the work table and no worker on the equipment. In addition, some facilities have workers attached to them.
[0056]
The equipment type classification unit 14 determines the presence / absence of a batch combination based on the batch size, and determines that there is a batch combination when batch size> 1 and that there is no batch combination when batch size = 1.
[0057]
The equipment form classification unit 15 divides the form of the equipment at the time of automatic generation of the simulation model into, for example, equipment (division) that divides a work unit as shown in FIGS. The equipment is divided into equipment that returns to the original unit later (split integration), equipment that does not divide the work unit (non-split), and equipment that integrates separate work units (integration).
[0058]
That is, as shown in FIG. 7A, for example, as shown in FIG. 7A, the sheet 15 stored in the magazine 14 is taken out and transported to a facility, where the sheet 15 is divided into three substrates 16 in this facility. Then, the substrate is transported in the state of the three divided substrates 16.
[0059]
In the divisional integration, as shown in FIG. 7B, for example, a sheet 15 stored in a magazine 14 is taken out, transported to a facility, and a processing process of dividing the sheet 15 into three substrates 16 is performed in this facility. Thereafter, the three substrates 16 are transported together.
[0060]
In the non-division, for example, as shown in FIG. 7C, the substrate 16 is transported to a facility, where the substrate 16 is processed, and then transported in the state of the substrate 16.
[0061]
In the integration, as shown in FIG. 7 (d), for example, three divided substrates 16 are transported to a facility, where the three substrates 16 are combined to form, for example, one sheet 15, and thereafter, the sheet 15 Transported in the state of.
[0062]
Therefore, the equipment type classification unit 15 performs division into division, division and integration, non-division and integration, for example, without changing the front and rear transport units and the front and rear transport units. For example, division is performed according to the presence of the front and rear transport units. The processing unit does not matter. In the divisional integration, classification is performed based on the change in the unit before and after the process, and the change in the process unit and the transport unit. Non-segmentation is classified according to the processing unit and no change in the transport unit. Integration is classified according to the presence / absence of a forward / backward transport unit.
[0063]
The simulator 17 receives the simulation model of the process line A automatically generated by the automatic generation unit 6, and executes the simulation of the simulation model.
[0064]
The notifying unit 18 notifies the simulation result of the simulator 17 as an evaluation target of the process line A. The notifying unit 18 analyzes the simulation result to obtain at least a Gantt chart, a journal, and an operation rate for the simulation model. The rate is displayed on a display or printed out by a printer.
[0065]
Specifically, the notification unit 18 includes, for example, a Gantt chart for each resource group 8 and each worker, a journal of the magazine 14 including a start date, a completion date, a lead time, an F value, and a delivery date, a journal for each resource group 8 and each worker. The resource group 8, the operating rate of each worker, the number of completed flow curves, the progress of the work in progress, and the like are displayed on a display or printed out by a printer.
[0066]
Next, the operation of the device configured as described above will be described.
[0067]
The design of the process line A is changed. The process line A is, for example, an assembly line for equipment and workers, and is divided into two areas, for example, a clean room 12 and a dustproof room 13 as shown in FIG. As shown in FIG. 5, the process line A includes a magazine 14, a sheet 15 as a work, and a substrate 16 as a work as a unit to be processed in the equipment and a unit for transport before and after the equipment. The sheet 15 holds, for example, three substrates 16, and obtains three substrates 16 by dividing the sheet 15 into three. The magazine 14 stores a plurality of sheets 15 or substrates 16. Therefore, when processing and transporting the work, the work is performed for each work of the magazine 14, the sheet 15, or the substrate 16. The process line A differs depending on the product type. In the processing of the work in the equipment, there are a processing performed by the equipment alone and a processing performed by an operator. The resource group 8 refers to a facility for processing a work, or the facility and a worker as a resource. The resource group 8 includes a plurality of resources. Since it is assumed that there are a plurality of resources that can perform one process, this is expressed as a resource group 8. In addition, resources also refer to equipment plus a workbench.
[0068]
When such a design change of the process line A is performed, the designer operates the input unit 1 to input parameter data for generating a simulation model of the process line A whose design is to be changed. The parameter data is roughly divided into, for example, a product (work) type, a process, equipment, an operator, and an operation time zone, and is stored in the input database 2 in a format as shown in FIG.
[0069]
Next, the data conversion unit 4 of the model evaluation unit 3 reads various types of parameter data stored in the input database 2 and converts the format of these parameter data into a format that can be easily processed by the model evaluation unit 3. The converted parameter data is stored in the conversion database 5.
[0070]
Next, the automatic generation unit 6 reads the model generation element data shown in FIG. 3 stored in the model database 7 and reads the parameter data stored in the conversion database 5, and By automatically inputting parameter data, a simulation model of the process line is automatically generated.
[0071]
The parameter data at this time is, for example, a process name, a man-hour, a setup before and after the process line A as shown in FIG. The unit of processing, presence / absence of an operator, and the like, for example, for the front transfer system 9, a front transfer unit, a front transfer time, and the like for the rear transfer system 10, for example, a rear transfer unit, a post transfer time, and the like. , The buffer capacity for the buffer 11, for example.
[0072]
Although FIG. 3 shows one process A, a plurality of process lines are connected to each other in the flow line. For example, for the process name, man-hour, setup before and after, for the resource group 8, for example, the equipment name, batch size, batch assembly method, processing unit, presence / absence of an operator, for the front transfer system 9, for example, the front transfer unit, Each parameter data such as, for example, a post-transport unit, a post-transport time, and a buffer capacity are input to the transport time, the post-transport system 10, and the buffer 11, for example.
[0073]
Here, the automatic generation unit 6 recognizes each data related to the work, the process line A, the resource group 8, the worker, the operating time, the lead time, and the process line A in the model generation element data.
[0074]
That is, regarding the work, a product to be transported and processed on the simulation model of the process line A is referred to as a work. It is recognized that, for example, 99 substrates 16 are stored in the magazine 14 to be loaded.
[0075]
As for the process line A, as shown in FIG. 6, each setup before and after, net processing, and transport are collectively referred to as a process line A, and each man-hour (each setup time before and after, net processing time, 6 for the equipment, and recognizes that the same worker continuously performs the front and rear transportation and the front and rear setup as shown in FIG. As shown in the figure, it is recognized that the same operator continuously performs the transport and the net processing, and further recognizes that the post-buffer 11 exists for each process. Recognize that it is a first in first out.
[0076]
Regarding the resource group (equipment and workbench) 8, it is recognized that the resource occupies the entire time of the process as shown in FIG. 6, and as shown in FIG. It recognizes that it is called a post-transport unit, and recognizes that the resources of the batch process have a batch size as shown in FIG.
[0077]
As for the worker, the worker recognizes that he can perform all the work in the process in charge, and recognizes that the worker has a shift, for example, on a weekly basis.
[0078]
Regarding the operating time and lead time, even if it is the break time, the worker recognizes that he / she will continue to work until the current work is completed, and recognizes that the lead time includes the break time. It is recognized that the operating rate of the worker is a value obtained by dividing the actual work time by the operating time.
[0079]
Regarding the process line A, as shown in FIG. 4, it is recognized that one line in one area of the clean room 12 or the dustproof room 13 is set as a line unit, and only one type of work is included in one line. Recognizing that it does not flow, recognizing that the product type flowing in the process line is changed to the parameter data shown in FIG. 2, and recognizing that the product type change is performed after the workpiece is wiped out of the process line, The line recognizes that the setup (time, personnel) is not taken into account in the simulation as it gives room for order entry with the change of product type.
[0080]
Accordingly, the automatic generation unit 6 recognizes the work, the process line A, the resource group 8, the worker, the operation time, the lead time, and the data relating to the process line A in the model generation element data. By inputting parameter data to the model generation element data of the line A, a simulation model of a process line can be automatically generated.
[0081]
At the same time, the equipment type classification unit 14 of the automatic generation unit 6 classifies the equipment type according to the parameter when the simulation model is automatically generated.
[0082]
The equipment type classification unit 14 determines the type of equipment in the assembly process flow line, for example, in the form of equipment (division, divisional integration, non-division, integration), presence / absence of workers in net processing, presence / absence of batch assembly, Are classified into a total of 24 types according to the combination of the three conditions with the combination method.
[0083]
Further, the equipment form classification unit 15 sets the equipment form at the time of automatic generation of the simulation model, for example, equipment (division) for dividing a work unit as shown in FIGS. The equipment is divided into equipment that divides and then returns to the original unit again (split integration), equipment that does not divide the work unit (non-split), and equipment that integrates separate work units (integration).
[0084]
Next, the simulator 17 receives the simulation model of the process line A automatically generated by the automatic generation unit 6, and executes the simulation of the simulation model.
[0085]
At this time, the simulator 17 executes the selection of resources and the securing of workers according to the resource selection flowcharts shown in FIGS. The procedure for selecting resources and securing workers is firstly performed by storing in the buffer 11 after processing, then retrieving resources and securing workers in the next process, and then retrieving work that can be performed in the next process. .
[0086]
In the model generation element data shown in FIG. 3, the resources “1” and “2” of the resource group 2 of the target work are assumed to be resources A, and the resource of the next process of the target work is assumed to be resources B. Also, a work that first appears from the resource A in a first-in first-out (FIFO) manner is defined as a work A, a work having a high priority among the resources B is defined as a work B, and a work having a high priority among the resources A is defined as a work C. Then, a table for managing the reservation state of the work in the simulator 17 is set as a reservation table.
[0087]
First, in step # 1 of the resource selection flowchart shown in FIG. 8, the simulator 17 checks the capacity of the buffer 11 after the resource A, and as a result of this check, if the capacity of the buffer 11 is full, the capacity of the buffer 11 Occupies resource A until becomes available.
[0088]
Next, if there is a free space in the buffer 11, the simulator 17 proceeds to step # 2 to secure the capacity of the buffer 11 after the resource A, and in the next step # 3, after securing the worker, the work A To the buffer 11 after the resource A.
[0089]
Next, in step # 4, the simulator 17 confirms the next process of the work A, and if there is a next process as a result of this confirmation, the process proceeds to step # 5, where the next process number and the location of the work A are set. Write to the reservation table.
[0090]
Next, the simulator 17 proceeds to step # 6 in the resource selection flowchart shown in FIG. 9, and searches for the resource B that can perform the work of the next process. In this search, a plurality of resources B may be searched.
[0091]
Next, in step # 7, the simulator 17 checks the availability of the resources B in order of priority. As a result of this check, if there is a vacancy in the resource B, the simulator 17 proceeds to step # 8, selects the work B from the reservation table according to the reservation order, and deletes the work B from the reservation table.
[0092]
Next, in step # 9, the simulator 17 transports the work B to the resource B after securing the workers.
[0093]
Note that as a result of checking the vacancies of the resources B in order of priority in step # 7, if there is no vacancy in the resources B, the simulator 17 waits in the buffer 11 after the resources A.
[0094]
On the other hand, if the simulator 17 determines in the above step # 4 that all processes are completed as a result of checking the next process of the work A, the process proceeds to step # 10 in the resource selection flowchart shown in FIG. I do. As a result of this check, if the resource A is empty, the simulator 17 proceeds to step # 11, and searches for a work C that can be worked from the reservation table in the order of reservation.
[0095]
When the target work is selected as a result of the search, the simulator 17 proceeds to step # 12, and deletes the selected work C from the reservation table.
[0096]
Next, the simulator 17 conveys the work C to the resource A after securing the workers in step # 13.
[0097]
Thus, the simulator 17 ends the processing. The simulator 17 terminates the process if there is a work as a result of confirming that the resource A is empty in step # 10, and if there is no target work as a result of searching for a workable work C in step # 11. .
[0098]
Further, the simulator 17 executes the processing in the resources "1" and "2" according to the in-resource processing flowchart shown in FIG. The simulator 17 has different processing flowcharts (how to call a worker and how to handle a work) in the resources "1" and "2" depending on the equipment form. Having.
[0099]
The simulator 17 performs the following rules upon executing such a function. That is, for a workbench, the same worker continuously performs transport to the equipment, net processing, and front-back setup, and for equipment, the same worker continuously performs transport to the equipment and pre-setup. That is.
[0100]
When the work enters the resources “1” and “2”, the simulator 17 determines whether or not to form a batch in step # 20 in the in-resource processing flowchart shown in FIG.
[0101]
If the result of this determination is that there is a batch set, the simulator 17 proceeds to step # 21 and determines whether or not to wait for a batch amount of work. As a result of this determination, if it is determined that the work for the batch amount is to be waited, the simulator 17 proceeds to step # 22 and waits until the work for the batch amount can be secured.
[0102]
If the simulator 17 determines in step # 20 that there is no batch to be assembled, if it is determined in step # 21 that the work for the batch amount is not to be waited, or if it is possible to secure the work for the batch amount in step # 21, the process proceeds to step # 21. Move to step 23 to secure workers and perform pre-setup.
[0103]
Next, in step # 24, the simulator 17 performs net processing according to the form of the resources "1" and "2", and subsequently performs post-setup and transport.
[0104]
Next, the notifying unit 18 notifies a simulation result of the simulator 17 as an evaluation target of the process line A. The notifying unit 18 analyzes the simulation result and, for example, generates a Gantt chart for each resource group 8 or each worker, The journal of the magazine 14 consisting of the completion date, lead time, F value, and delivery date, the journal for each resource group 8 and each worker, the operating rate for each resource group 8 and each worker, the number of completed flows, the progress of work in progress, etc. Display output on display or print out by printer.
[0105]
As described above, in the above-described embodiment, at least one resource “1” or “2” including equipment for processing a work or the equipment and an operator, and transporting the work before and after the resources “1” and “2”. The model generation element data of the process line having the pre-transportation system 9 and the post-transportation system 10 to be processed and the buffer 11 for temporarily storing the work processed by the resources "1" and "2" are stored. By inputting each parameter data relating to the resources "1" and "2", the front transfer system 9, the rear transfer system 10 and the buffer 11, a simulation model of the process line is automatically generated. Changes in equipment capacity, changes in the number of equipment, etc. due to a change in product type, etc., and the operating rate in the assembly process line where the design change was made Etc. may be performed to confirm whether or not it is a value commensurate with the change design, it can automatically generate a simulation model of the assembly process line was promptly reflecting the change of equipment capacity and the number going design changes.
[0106]
As a result of the simulation, if the operation rate of the assembly process line whose design has been changed is not a value corresponding to the design change, the simulation model is changed again and the simulation is executed. A simulation model of the assembly process line reflecting the change of the capacity and the number of facilities can be automatically generated by quickly and again changing the design of the simulation model.
[0107]
Therefore, the time for designing and developing the assembly process line when the design is changed can be greatly reduced, and the number of designers and the like involved in the designing and developing can be reduced.
[0108]
As a result, by simulating the simulation model of the assembly process line, it is possible to immediately evaluate the assembly process line whose design has been changed based on the simulation result, and to quickly determine the location of the assembly process line to be changed from the evaluation result. it can.
[0109]
The evaluation of the assembly process line whose design has been changed is performed by, for example, the resource group 8 or the Gantt chart for each worker, the journal of the magazine 14 including the start date, the completion date, the lead time, the F value, and the delivery date, the resource group 8 or the worker. Appropriate evaluation can be performed by displaying on a display a journal for each resource, an operation rate for each resource group 8 and each worker, a completed flow number curve, and a progress of a work in progress, or by printing out by a printer.
[0110]
The present invention is not limited to the above-described embodiment, and can be variously modified in an implementation stage without departing from the scope of the invention.
[0111]
Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent features. For example, even if some components are deleted from all the components shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the problem described in the column of the effect of the invention can be solved. In the case where the effect is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.
[0112]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to provide a simulation model generation method, a simulation model generation apparatus, and a simulation model evaluation apparatus that can automatically generate a simulation model by quickly reflecting a change in the capacity or the number of facilities.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing an embodiment of a simulation model evaluation device according to the present invention.
FIG. 2 is a diagram showing the interrelationship of parameter data stored in an input database in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 3 is a schematic diagram of model generation element data in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 4 is a diagram showing each area of a clean room and a dustproof room in a process line in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 5 is a diagram for explaining equipment and units of conveyance in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 6 is a diagram showing a time occupancy relationship between equipment and a worker in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 7 is a diagram showing the division of the equipment form in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 8 is a flowchart of a resource selection in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 9 is a flowchart of a resource selection in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 10 is a resource selection flowchart in one embodiment of the simulation model evaluation device according to the present invention.
FIG. 11 is an in-resource processing flowchart in one embodiment of the simulation model evaluation device according to the present invention.
[Explanation of symbols]
1: Input unit
2: Input database
3: Model evaluation unit
4: Data converter
5: Conversion database
6: Automatic generation unit
7: Model database
8: Resource group
9: Front transfer system
10: Rear transfer system
11: Buffer
12: Clean room
13: Dustproof room
14: Magazine
15: Sheet
16: Substrate
17: Simulator
18: Notification section

Claims (8)

A process line having equipment for processing a work or at least one resource consisting of the equipment and a worker, a transport system for transporting the work before and after the resource, and a buffer for temporarily storing the work processed by the resource Memorize the model generation element data of
Automatically generating a simulation model of the process line by inputting each parameter relating to the work, the resource, the transport system, and the buffer to the model generation element data,
A method for generating a simulation model, characterized in that: 2. The simulation model generation method according to claim 1, wherein, when automatically generating the simulation model, the type of the equipment is classified according to the parameter. 3. The simulation model generation method according to claim 2, wherein the type of the equipment is classified by a parameter related to a unit of the work, a parameter related to the worker, and a parameter related to batch processing of the work. The form of the facility is a facility that divides the work into a plurality of works, a facility that divides the work and then integrates these works, a facility that does not divide the work, and a facility that integrates the plurality of works. 4. The simulation model generating method according to claim 3, wherein the method is divided into: The method according to claim 1, wherein the process line is a flow line. A simulation model generating apparatus comprising means for executing the simulation model generating method according to any one of claims 1 to 5. A simulator that executes a simulation of the simulation model generated by the simulation model generation device according to claim 6,
Notifying means for notifying a simulation result of the simulator as an evaluation target of the process line;
A simulation model evaluation device comprising: 8. The simulation model evaluation device according to claim 7, wherein the notifying unit analyzes the simulation result to obtain at least a Gantt chart, a journal, and an operation rate for the simulation model.

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