JP3452801B2 - Factory plan creation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a factory plan creating device for creating an appropriate factory plan based on prerequisites and transportation conditions.

[0002]

2. Description of the Related Art In factory planning such as designing a production line of a factory, in order to improve the production efficiency of the entire factory,
What kind of devices are to be prepared and where to arrange them are decided. In that case, an apparatus and a method for increasing the production efficiency are disclosed in, for example, JP-A-56-19635,
JP-A-5-108667 and JP-A-8-77247.
JP-A-8-229779.

For example, in Japanese Unexamined Patent Publication No. 56-19635, in manufacturing a product group of various kinds, a processing apparatus group (job shop) corresponding to each processing operation, and a work (non-processing object) for each processing apparatus group. Efficiently operating a transfer device that transfers products, manufacturing devices in which each process is automated based on product management and process management, manufacturing devices in which facilities for common work are arranged together, work flow Computer-controlled manufacturing equipment and the like are described for smoothness.

Further, for example, in Japanese Unexamined Patent Publication (Kokai) No. 5-108667, an apparatus for performing equipment planning based on the hierarchical decision making method AHP, which evaluates a plurality of goals for the equipment plan and achieves those goals. Describes an apparatus for obtaining an effective facility plan, a quantitative value expressing a qualitative evaluation item, and an apparatus for evaluating a facility plan based on the value of the quantitative evaluation item.

Further, for example, Japanese Unexamined Patent Publication No. 8-77247 discloses an apparatus and method for calculating the capacity of the equipment from the data of each equipment and calculating the production efficiency based on the capacity of the equipment.

Further, for example, in Japanese Unexamined Patent Publication No. 8-229779, there is described a device for calculating the number of equipments required for a production line and the production period of products based on information on equipments.

[0007]

Since the conventional factory planning apparatus is constructed as described above, the plan is not prepared in consideration of the performance of the transportation system such as the transportation equipment between the facilities, and the transportation is not performed. When the performance of the transport system is low in a production line that has a system, the performance of the transport system becomes a bottleneck,
There were issues such as the difficulty of operating the factory as planned.

The present invention has been made in order to solve the above problems, and in addition to the conditions relating to equipment, the type of carrier equipment between equipment, the layout of the carrier equipment, and the carrier system such as the operating method of the carrier equipment. It is an object of the present invention to obtain a factory plan creation device that creates an optimum factory plan including the transport system by taking into consideration the above conditions.

[0009]

A factory plan creating apparatus according to the present invention is a precondition input means for inputting a precondition for a predetermined item in a factory plan, and a precondition for a predetermined item input by the precondition input means. Based on the conditions, the precondition candidate generating means for generating the precondition candidates for other items, the precondition candidate evaluating means for evaluating the precondition candidates, and the factory planning based on the evaluation by the precondition candidate evaluating means. and assumptions determining means for determining a prerequisite for other items in a transport condition input means for inputting the transport conditions for a given item regarding the transport in the plant, against the predetermined item which is input by the transfer condition input means
Uncertainties regarding transportation in the factory plan based on the transportation conditions
Other items based on the assumptions
Calculate the transport load for an item and base it on this transport load.
And a transport condition candidate generating means for generating transport condition candidates for other items , a transport condition candidate evaluating means for evaluating transport condition candidates, and a transport condition candidate in the factory plan based on the evaluation by the transport condition candidate evaluating means. And a factory plan evaluating means for evaluating a factory plan based on the preconditions determined by the precondition determining means and the transport conditions determined by the precondition determining means. It is a thing.

In the factory plan creating apparatus according to the present invention, the transportation condition candidate evaluation means calculates the number of times of transportation between the facilities based on the precondition or the transportation condition, and evaluates the transportation condition candidate based on at least the number of transportations. To do.

The factory plan creating apparatus according to the present invention comprises a first display means for displaying the number of times of transportation between facilities calculated by the transportation condition candidate evaluation means.

The factory plan creating apparatus according to the present invention is a prerequisite condition candidate generating means for calculating the degree of importance of the relation between facilities as a prerequisite condition based on the prerequisite condition inputted by the prerequisite condition input means. is there.

The factory planning apparatus according to the present invention comprises importance input means for inputting the importance of the relationship between the facilities as a precondition.

The plant planning apparatus according to the present invention comprises second display means for displaying the importance of the relationship between the facilities as a prerequisite.

[0015]

The factory plan creating apparatus according to the present invention is a layout candidate creating means for creating a facility layout candidate based on the preconditions determined by the precondition determining means and the transport conditions determined by the transport condition determining means. It is equipped with.

The factory plan creation apparatus according to the present invention comprises layout candidate evaluation means for evaluating the equipment layout candidates generated by the layout candidate generation means.

The plant planning apparatus according to the present invention comprises a layout determining means for determining the layout of the equipment based on the evaluation by the layout candidate evaluating means.

The factory plan creating apparatus according to the present invention displays the layout of the equipment determined by the layout determining means and the evaluation corresponding to the layout, and when the layout is modified, responds to the modification. A third display means for changing the display is provided.

In the factory plan creating apparatus according to the present invention, the factory plan evaluation means executes a simulation based on the factory plan and evaluates the factory plan based on the result of the simulation.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. 1 is a block diagram showing the configuration of a factory plan creation device according to a first embodiment of the present invention. Figure 2
FIG. 4 is a diagram showing an example of equipment data of the prerequisite data, FIG. 3 is a diagram showing an example of process flow data of the prerequisite data, and FIG. 4 is production of the prerequisite data. FIG. 6 is a diagram showing an example of data, FIG. 5 is a diagram showing an example of storage facility data in the prerequisite data, and FIG. 6 is a diagram illustrating inter-equipment relationship data in the prerequisite data. . FIG. 7 is a diagram showing an example of the transport device data in the transport condition data, and FIG.
It is a figure which shows an example of the conveyance path data of conveyance condition data, FIG. 9 is a figure which shows an example of the conveyance relevant equipment data of conveyance condition data, and FIG. 10 is a conveyance of conveyance condition data. It is a figure which shows an example of apparatus operation data.

In FIG. 1, reference numeral 1 is a precondition for a predetermined item (production target, constraint conditions in production, evaluation index of factory planning, equipment data, data of materials used for production, etc.) based on an operation by a user. Is a precondition input device (precondition input device, importance input device) that supplies the precondition data 21 to the data management device 15, and 2 is for a predetermined item input by the precondition input device 1. It is a prerequisite condition candidate generation device (precondition candidate generation means) that reads the prerequisite data 21 from the data management device 15 and generates a candidate of a prerequisite condition for another item based on the prerequisite condition for the predetermined item. Three
Is a precondition solution candidate evaluation device (precondition candidate evaluation means) that evaluates the candidates generated by the precondition solution candidate generation device 2 based on the degree of achievement of the target such as the production amount of the product. Is a precondition deciding device (precondition deciding means) for deciding, as a precondition, a precondition candidate whose evaluation value by the precondition solution candidate evaluation device 3 is larger than a predetermined desired value.

Reference numeral 5 is a layout input device for inputting a layout of a predetermined facility based on a user's operation and supplying the layout data 22 to the data management device 15. Reference numeral 6 is a predetermined input input by the layout input device 5. Read out the layout data 22 of the facility from the data management device 15 and generate the layout candidates of all the facilities based on the layout data 22 of the predetermined facility, or
Alternatively, the prerequisite data 21 and the transport condition data 23
Layout data generation device (layout candidate generation means) for generating layout candidates for all equipment based on
Reference numeral 7 denotes a layout evaluation device (layout candidate evaluation means) that evaluates the layout candidates generated by the layout data generation device 6 based on the number of times of transportation between facilities, the transportation time, and the like. Among the candidates, a layout determination device (layout determination means) determines a layout whose evaluation value by the layout evaluation device 7 is larger than a predetermined request value, and 9 is a layout data generation device based on an operation by the user. 6 is a layout editing device that corrects the contents of the layout candidates generated by 6.

A transport condition 10 is inputted with transport conditions for a predetermined item (type of transport device, number of transport devices, transport speed, transport route, etc.) based on a user's operation.
Is a transport condition input device (transport condition input means) for supplying the data to the data management device 15, and 11 is the transport condition input device 1.
Transport condition data 23 for a specified item input with 0
Is a transportation condition solution candidate generation device (transportation condition candidate generation means) that generates a transportation condition candidate for another item based on the transportation condition for the predetermined item, and 12 is a transportation condition. A transportation condition solution candidate evaluation device (transport condition candidate evaluation means) that evaluates the candidates generated by the condition solution candidate generation device 11, and 13 is an evaluation value by the transportation condition solution candidate evaluation device 12 among the transportation condition candidates. Is a transport condition determining device (transport condition determining means) that determines a transport condition that is greater than a predetermined demand value.

Reference numeral 14 denotes a factory based on a factory plan composed of the preconditions determined by the precondition determination apparatus 4, the layout determined by the layout determination apparatus 8, and the transportation conditions determined by the transportation condition determination apparatus 13. Is a factory plan evaluation device (factory plan evaluation means) that evaluates the factory plan based on the result of the simulation, and 16 is the determined preconditions, layout, transfer conditions, and their evaluation. Display device for displaying results, evaluation results of factory plans, etc.
Display device, second display device, third display device).

Reference numeral 15 is a data management device for managing the prerequisite data 21, the layout data 22 and the transportation condition data 23. The prerequisite data 21 includes equipment data 41, process flow data 42, production data 43, storage equipment data 44, and inter-equipment relationship data 45. The transportation condition data 23 includes transportation equipment data 51, transportation route data 52, and There are transportation-related equipment data 53 and transportation equipment operation rule data 54.

Equipment data 4 of the prerequisite data 21
1, for example, as shown in FIG. 2, a facility group to which each facility belongs, an X coordinate value CX of the center of the facility in the layout, a Y coordinate value CY of the center of the facility in the layout,
It is composed of values for items such as equipment width X, equipment depth Y, equipment height H, and equipment arrangement rotation angle R. For example, "equipment 1" belongs to "equipment group 1", the X coordinate value CX of the center of the equipment in the layout is 2.2 meters, and the Y coordinate value CY of the center of the equipment in the layout.
Is 7.3 meters, the width X of the equipment is 2.6 meters, the depth Y of the equipment is 2.6 meters, the height H of the equipment is 1 meter, and the arrangement rotation angle R of the equipment is It is 0 radians.

The process flow data 42 is, for example, as shown in FIG. 3, for each product type, the process required for producing the product type, the equipment group used for the process, the processing time of the process, and the previous process. It is composed of values for items such as the transportation route from the equipment group. For example, in the production of "product A", "process 1", "process 2" and "process 3" are executed. Then, the “process 1” is processed in the “equipment group 1” in 3 minutes, and the intermediate product is conveyed to the “equipment group 2” via the “route 1-2”. In addition, "route 1-2" indicates a transport route from "equipment group 1" to "equipment group 2", and "route 2"
-3 ”indicates a transport route from the“ equipment group 2 ”to the“ equipment group 3 ”.

For example, as shown in FIG. 4, the production data 43 is composed of values for items such as the type of the ordered product, the production amount of the product, the production start date and time, and the delivery date and time for each order. .

For example, as shown in FIG. 5, the storage facility data 44 includes, for each storage device storing intermediate inventory, a group of facilities to which the storage device belongs, a storable capacity, an X coordinate value CX of the center of the facility in the layout, It is composed of values for items such as the Y coordinate value CY of the center of the equipment in the layout, the equipment width X, the equipment depth Y, the equipment height H, and the equipment arrangement rotation angle R. For example, "storage device 1" belongs to "equipment group 1", the capacity of the intermediate stock is 20, the X coordinate value CX of the center of the equipment in the layout is 1 meter, and the Y coordinate value of the center of the equipment in the layout. CY
Is 1 meter, the width X of the equipment is 1 meter,
The depth Y of the equipment is 1 meter and the height H of the equipment is 1
The installation rotation angle R of the equipment is 0 radian.

The inter-equipment relation data 45 is composed of values for the importance of the connection relation between facilities, as shown in FIG. 6, for example. In FIG. 6, "equipment 1" and "equipment 2"
The degree of importance of the connection relation with “Equipment 2” and the degree of importance of the connection relation of “Equipment 3” are 2, and the degree of importance of the connection relation with “Equipment 3” and “Equipment 4” is 3, the importance of the connection relationship between the "equipment 1" and the "door" is 5, and the importance degree of the connection relationship between the "equipment 4" and the "door" is 5.

The carrier device data 51 of the carrier condition data 23 is, for example, as shown in FIG.
It is composed of values for items such as the number of transporting devices used, transporting speed, loading time on the transporting devices, and unloading time from the transporting devices. For example, two "transport devices 1" are used, the transport speed of the "transport device 1" is 1 meter per second, the loading time on the "transport device 1" is 5 seconds,
The unloading time from the "transport device 1" is 5 seconds.

For example, as shown in FIG. 8, the transport route data 52 includes, for each transport route, the transport device used for the transport route, the X coordinate value SX of the transport start point in the layout,
It is composed of values for items such as the Y coordinate value SY of the transport start point in the layout, the X coordinate value EX of the transport end point in the layout, and the Y coordinate value EY of the transport end point in the layout. For example, the "path 1-2" starts at the coordinates (X, Y) = (3.1, 6.0) and ends at the coordinates (X, Y).
= (7.6, 6.0), and is configured by the "transport device 1".

For example, as shown in FIG. 9, the transport-related facility data 53 is, for each facility group related to transport, the facility constituting the facility group and the X coordinate value CX of the center of the facility in the layout for each facility. , The Y coordinate value CY of the center of the equipment in the layout, the width X of the equipment, the depth Y of the equipment,
It is composed of values for items such as the height H of the equipment. For example, a "charging station" has a facility "BS1" having a center coordinate value (CX, CY) of (1, 1), a width of 1 meter, a depth of 1 meter, and a height of 1 meter. , And the coordinate value of the center (CX, C
Y) is (3,1), the width is 1 meter, the depth is 1 meter, and the height is 1 meter.

For example, as shown in FIG. 10, the carrier device operation rule data 54 is constituted by the content of the rule for each rule.

Next, the operation will be described. FIG. 11 is a flowchart illustrating the operation of the factory plan creation device according to the first embodiment. FIG. 12 is a plan view showing an example of the layout of the equipment, and FIG. 13 is a diagram showing an example of the calculation result of the transport load.

First, in step ST1 of FIG.
The precondition input device 1 supplies the precondition of a predetermined item input by the user or the precondition of a predetermined item read from a recording medium to the data management device 15, for example. For example, when inputting a precondition, an input field in a table format as shown in FIGS. 2 to 6 is displayed on the display device 16, and a user uses a keyboard or the like to input a value (content) for a desired item. It Then, the data management device 15
Records the supplied prerequisite information as the prerequisite data 21.

In this way, the precondition is that the data management device 15
In step ST2, the precondition solution candidate generation device 2 reads the precondition data 21 corresponding to the precondition from the data management device 15, and extracts the precondition other than the precondition supplied from the precondition input device 1. A candidate for a value for a prerequisite item required for an undetermined factory plan is generated and the candidate is output to the prerequisite condition candidate evaluation device 3.

For example, when the number of any of the facilities is undetermined in the precondition, the precondition solution candidate generation device 2 reads the precondition data 21 from the data management device 15 and writes it in the precondition data 21. Based on this, candidate values for the number of facilities are generated. When the transport route is undetermined in the precondition, the precondition solution candidate generation device 2 generates a transport route candidate connecting the facilities based on the input facility data 41. When the capacity of the storage facility is undetermined, the prerequisite solution candidate generation device 2 is required based on the processing capacity and production amount of the facility connected before and after the storage facility in a series of processes. The capacity value is used as a candidate. If the coordinates of the equipment in the layout are undetermined, the prerequisite solution candidate generation device 2
On the basis of the inter-equipment relationship data 45, a candidate coordinate value for arranging the equipment is generated so that the equipment having a higher degree of importance of the relationship is placed closer. When the importance of the relationship between the equipments is undetermined, the precondition solution candidate generation device 2 refers to the transfer route data 52 and the like, and based on the flow of the processing, the candidate value of the value for the equipment relationship data 45. To generate.

In step ST3, the precondition solution candidate evaluation device 3 receives the value candidates for the undetermined items, evaluates the candidates, and outputs the evaluation value, which is an index of the evaluation, to the precondition determination device 4. To do. For example, if the equipment coordinates are an undetermined item, the prerequisite solution candidate evaluation device 3 outputs an index corresponding to the sum of the transport distances as an evaluation value. In this case, when the index corresponding to the sum of the transport distances is used as the evaluation value, the smaller the sum of the transport distances, the higher the value of the index.

Then, in step ST4, the precondition determining device 4 determines whether or not the evaluation value is larger than the preset request value for the item, and when it is determined that the evaluation value is larger than the request value. In step ST5, the candidate value is determined as the precondition for the item, and the value is output to the data management device 15. The data management device 15 records the determined prerequisites as a part of the previously recorded prerequisite data 21.

On the other hand, when it is determined in step ST4 that the evaluation value is less than or equal to the desired value, step ST2
Returning to, the precondition determination device 4 causes the precondition solution candidate generation device 2 to generate a candidate different from the previously generated candidate. Then, the processes of steps ST2 to ST4 are repeatedly executed until a candidate whose evaluation value is larger than the desired value is obtained. The input prerequisites and the determined prerequisites are sequentially displayed on the display device 16.

When the preconditions are determined, next, in step ST6, the data management device 15 determines whether or not to automatically generate the layout data 22. At this time,
For example, the data management device 15 is the layout input device 5
It is determined whether or not the layout data 22 is input by the user based on an operation by the user (designation of layout manual input or automatic generation). When it is determined that the layout data 22 is not automatically generated, the data management device 15 receives the layout data 22 input by the layout input device 5 and records it as a layout candidate in step ST7.

On the other hand, when it is determined that the layout data 22 is automatically generated, the data management device 15 supplies the precondition data 21 to the layout data generation device 6 in step ST8, and the layout data corresponding to the precondition data 21 is supplied. 22 is generated as a layout candidate.

Then, in step ST9, the layout editing device 9 corrects the layout data 22 by automatic generation or manual input based on the operation by the user. For example, the layout corresponding to the layout data 22 that is automatically generated or manually input and the evaluation of the layout (described later) is performed by the data management device 15 by the display device 16.
Is displayed, the user operates the layout editing device 9 as necessary to correct the layout. For example, when the user inputs the coordinate value of the equipment, the coordinate value of the equipment in the prerequisite data 21 is corrected to that value. When the layout values are displayed on the display unit 16 and the equipment coordinate values are corrected, the displayed layout is changed in response to the correction. In addition, the value of the inter-equipment relationship data 45 and the transport device data 51
Even when the value (content) of is changed, the layout displayed on the display unit 16 is changed corresponding to the change. Furthermore, the layout evaluation changes accordingly.

FIG. 12 shows an example of a layout in accordance with the inter-equipment relationship shown in FIG. 6, and this layout shows "equipment 1" 140, "equipment 2" 141, "equipment 3" 142,
It is composed of “equipment 4” 143, walls 155 to 158, and a door 159. In addition, the transport paths 150 to 154 are configured on the passage 144 based on the transport relationships 145 to 149 between the facilities as the transport conditions. Here, the transport path 15
1 is the above-mentioned “route 1-2”, and the transport route 152 is the above-mentioned “route 2-3”. In this case, since the worker's manual PGV is used as the transportation method, the transportation paths 150 to 154 are arranged on the passage 144. Note that the manual work is (exceptionally) set as a value corresponding to the item “transport device”.

Next, in step ST10, the layout data 22 is supplied to the layout evaluation apparatus 7, and the layout evaluation apparatus 7 evaluates the layout candidate based on the layout data 22 and determines the layout value with the evaluation value indicating the evaluation result. Output to the device 8.

As shown in FIG. 13, for example, the layout evaluation apparatus 7 uses the number of times of transportation between facilities, the distance between facilities, the type of transportation equipment (including manual work), and the total transportation time for all transportation between facilities. Is calculated, and the evaluation value is determined based on these values. The number of times of transportation between facilities, the distance between facilities, the type of transportation equipment (including manual work), and the total transportation time for all transportation between facilities are calculated by the following formulas (1), (2) and Each is calculated based on (3). MHT (i, j) = R (i, j) × P (i, j) (1) Here, MHT (i, j) is the number of times of transportation between the equipment i and the equipment j. . R (i, j) is a value indicating whether or not there is a transport path between the equipment i and the equipment j, and when there is a transport path between the equipment i and the equipment j, R = 1. Yes, if there is no transport path between the equipment i and the equipment j, R = 0. P (i, j) is the production amount of the product processed in the equipment j next to the equipment i.

T (i, j) = MHT (i, j) × D (i, j) / V (i, j) + L (i, j) (2) Here, T (i, j) ) Is the total transport time between the equipment i and the equipment j, D (i, j) is the distance along the transport path between the equipment i and the equipment j, and V (i, j) is , L is the transfer speed of the transfer device connecting the equipment i and the equipment j, and L
(I, j) is a transfer time between the equipment i, j and the carrier device.

[0050]

[Equation 1] Here, TT (i, j) is the total transport time, and N is the total number of facilities.

In FIG. 13, for example, with respect to the transportation load between the "equipment 4" and the "door", the number of transportations is 1000.
One time, the transport distance is 2.3 meters, the transport equipment is a manual PG
V, total transport time is 38 minutes, and one transport time is calculated to be 2.3 seconds.

The number of times of transportation between the facilities calculated here is output by the display device 16 or a display, a printer, or the like (not shown). Can be grasped.

Then, in step ST11, the layout determining device 8 determines whether or not the evaluation value is larger than a predetermined request value, and when it is determined that the evaluation value is larger than the predetermined request value, in step ST12. Then, the layout candidate is determined as the layout, and the fact is notified to the data management device 15.

On the other hand, when it is determined that the evaluation value is less than or equal to the predetermined request value, the layout determination device 8 notifies the data management device 15 of that fact. Data management device 15
Upon receiving the notification that the evaluation value is equal to or less than the predetermined request value, in step ST13, based on the operation by the user, it is determined whether or not the layout data 22 is newly created again. At this time, for example, an image prompting the user to select whether or not to newly create the layout data 22 is displayed on the display device 16, and the user inputs the layout input device 5
Is operated to select whether to newly create the layout data 22.

When it is determined in step ST13 that the layout data 22 is newly created again, the processing from step ST6 is executed again, and when it is determined that the layout data is not newly created, the processing from step ST9 is executed again. It

After the layout is determined in this way, in step ST14, the data management device 15
Receives and records the transportation condition data 23 input by the transportation condition input device 10. At this time, the transport condition input device 10 supplies the transport condition of the predetermined item input by the user or the transport condition of the predetermined item read from the recording medium to the data management device 15, for example.

Next, in step ST15, the transportation condition solution candidate generation device 11 reads out the transportation condition data 23 corresponding to the transportation condition from the data management device 15, and determines the transportation condition other than the transportation condition supplied from the transportation condition input device 10. Value candidates for the items of the transportation conditions necessary for the undetermined factory plan are generated, and the candidates are output to the transportation condition solution candidate evaluation device 12. For example, when the type of the transport device is undetermined, the transport condition solution candidate generation device 11 checks the load and the transport distance of the transport route in which the transport device is used, and generates a candidate for the type of the transport device in accordance with them. To do. For example, when the load on the transport path is large or the transport distance is long, a model with a high transport speed such as an overhead shuttle is selected as a candidate.

In step ST16, the transport condition solution candidate evaluation device 12 receives the value candidates for the undetermined items, evaluates the candidates, and outputs the evaluation value, which is an index of the evaluation, to the transport condition determination device 13. To do.

Then, in step ST17, the transport condition determining device 13 determines whether or not the evaluation value is larger than the preset request value for the item, and when it is determined that the evaluation value is larger than the request value. , Step ST
At 18, the value that is the candidate is determined as the transportation condition for the item, and the value is output to the data management device 15. The data management device 15 records the determined transport condition as part of the previously recorded transport condition data 23.

On the other hand, if it is determined in step ST17 that the evaluation value is less than or equal to the desired value, step ST
Returning to 15, the transport condition determination device 13 causes the transport condition solution candidate generation device 11 to generate a candidate different from the previously generated candidate. Then, the processes of steps ST15 to ST17 are repeatedly executed until a candidate whose evaluation value is larger than the desired value is obtained. The input transport conditions and the determined transport conditions are sequentially displayed on the display device 16.

When the transportation conditions are determined, next, in step ST19, the data management device 15 supplies the precondition data 21, the layout data 22 and the transportation condition data 23 as a factory plan to the factory planning evaluation device 14,
Have the factory plan evaluated. The factory plan evaluation device 14
The operating state of the factory is simulated based on the factory plan, and the factory plan is evaluated based on the result of the simulation. Then, the factory plan evaluation device 14
The evaluation value indicating the evaluation is output to the data management device 15.

Then, in step ST20, the data management device 15 judges whether or not the evaluation value is larger than the predetermined request value, and when it is judged that the evaluation value is larger than the predetermined request value, it is not shown. Save the factory plan on a recording medium. Note that the factory plan may be saved after being converted into a format designated in advance in a precondition or the like. On the other hand, when it is determined that the evaluation value is less than or equal to the predetermined request value, the process returns to step ST1 and again.
Factory planning is executed.

As described above, according to the first embodiment, the factory plan is prepared in consideration of the transport conditions in addition to the preconditions, so that the factory plan is created in accordance with the actual condition of the factory. The effect that can be obtained is obtained.

Further, since the layout and the evaluation value of the factory plan are changed in association with the change of the importance of the relation between facilities, the production amount of each kind, the kind of the carrying equipment, etc.,
By referring to the evaluation value, the effect of those changes can be easily grasped, and the effect that an optimum factory plan can be created can be obtained.

Furthermore, since the load of the transfer route is calculated by the transfer condition solution candidate generating device 11 and the transfer device corresponding to the load can be used manually or automatically, a series of processing is delayed. The effect of being able to increase the efficiency of the production line is obtained.

Furthermore, since the layout is displayed on the display device 16, the user can easily visually confirm the layout.

Furthermore, since the factory plan evaluation device 14 simulates the actual operating state of the factory based on the factory plan and evaluates the factory plan, a good factory plan in consideration of the dynamic behavior of the factory is obtained. The effect that can be created is obtained.

In the first embodiment, the precondition determining device 4 determines the candidates whose evaluation values are larger than the desired value as the preconditions of the item as they are. Until the predetermined number is generated, the prerequisite solution candidate generation device 2 may be made to generate the candidates and may be determined as the candidate having the highest evaluation value among the predetermined number of candidates. Similarly, the layout deciding device 8 decides the layout as it is for the candidates having the evaluation values larger than the desired value, but the layout data generating device 6 does not generate until the predetermined number of candidates having the evaluation values larger than the desired value are generated. Alternatively, the candidate may be generated and the candidate having the highest evaluation value may be determined from the predetermined number of candidates. Similarly, the transport condition determining device 13 determines the candidates whose evaluation value is larger than the desired value as the transport conditions of the item as they are, but until a predetermined number of candidates whose evaluation value is larger than the desired value are generated. Alternatively, the transport condition solution candidate generation device 11 may generate a candidate and determine the candidate with the highest evaluation value out of the predetermined number of candidates.

Further, in the first embodiment, the prerequisites, the layout, the conveyance conditions, and the quality of the factory plan are determined based on the prerequisites determination device 4, the layout determination device 8, and the conveyance condition determination. Although the device 13 and the factory plan evaluation device 14 respectively execute them, these decisions may be executed by the user. By doing so, the factory plan can be created in a shorter time.

[0070]

As described above, according to the present invention, the precondition input means for inputting the precondition for the predetermined item in the factory plan and the precondition for the predetermined item inputted by the precondition input means are used. Based on the evaluation by the precondition candidate generation means for generating the precondition candidate for the other item, the precondition candidate evaluation means for evaluating the precondition candidate, and the precondition candidate evaluation means. Precondition determining means for determining the preconditions for the item, transport condition input means for inputting the transport condition for a predetermined item regarding transport in the factory, and transport condition
Transport conditions for the specified items entered by the input means
To other unconfirmed items related to transportation in the factory plan
Identify other items based on assumptions
Transport condition candidate generating means for calculating the transport load of the transport condition and generating transport condition candidates for other items based on this transport load ; transport condition candidate evaluating means for evaluating the transport condition candidates; Based on the evaluation by the condition candidate evaluating means, a carrying condition determining means for determining carrying conditions for other items related to carrying in the factory plan, and a precondition determined by the prerequisite determining means and the carrying determined by the carrying condition determining means. Since it is configured so as to have a factory plan evaluation means for evaluating a factory plan based on conditions, it is possible to create a factory plan that more closely matches the actual conditions of the factory, taking into consideration the transport conditions in addition to the prerequisites. is there. Also, transport
Conveyance system is configured according to the load, and a series of processing is delayed
Without increasing the efficiency of the production line
effective.

According to the present invention, the transfer condition candidate evaluation means calculates the number of times of transfer between the facilities based on the precondition or the transfer condition, and evaluates the candidate of the precondition based on at least the transfer number. Therefore, there is an effect that the transport load between the facilities can be easily grasped.

According to the present invention, the first display means for displaying the number of times of transportation between facilities calculated by the transportation condition candidate evaluation means is provided, so that the transportation load between facilities can be visually simplified. There is an effect that can be grasped.

According to the present invention, the precondition candidate generating means is configured to calculate the degree of importance of the relationship between the facilities as the precondition, based on the precondition input by the precondition input means. The effect is that the importance of the relationship between the facilities can be easily grasped.

According to the present invention, since the second display means for displaying the importance of the relationship between the equipments as a precondition is provided, the importance of the relationship between the equipments can be visually and easily. The effect is that you can grasp.

[0075]

According to the present invention, the layout candidate generating means for generating the layout candidate of the facility is provided based on the precondition determined by the precondition determining means and the transport condition determined by the transport condition determining means. Since it is configured, there is an effect that the amount of operation by the user such as data input can be reduced.

According to the present invention, the layout candidate evaluating means for evaluating the layout candidates of the equipment generated by the layout candidate generating means is provided.
There is an effect that the layout candidates can be quantitatively evaluated.

According to the present invention, since the layout determining means for determining the layout of the equipment based on the evaluation by the layout candidate evaluating means is provided, it is possible for the user to determine any one of the layout candidates as the layout. There is an effect that the operation amount can be reduced.

According to the present invention, the layout of the equipment determined by the layout determining means and the evaluation corresponding to the layout are displayed, and when the layout is modified, the display is changed according to the modification. Since the third display means is provided, there is an effect that the effect of the correction can be easily grasped and an optimum factory plan can be created. Further, there is an effect that the user can visually and easily check the layout.

According to the present invention, the factory plan evaluation means,
Since the simulation is executed based on the factory plan and the factory plan is evaluated based on the result of the simulation, it is possible to create a good factory plan in consideration of the dynamic behavior of the factory. is there.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a factory plan creation device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of equipment data in the prerequisite data.

FIG. 3 is a diagram showing an example of process flow data in the prerequisite data.

FIG. 4 is a diagram showing an example of production data of the prerequisite data.

FIG. 5 is a diagram showing an example of storage facility data in the prerequisite data.

FIG. 6 is a diagram illustrating inter-equipment relationship data included in the prerequisite data.

FIG. 7 is a diagram showing an example of carrier device data in the carrier condition data.

FIG. 8 is a diagram showing an example of transport route data in the transport condition data.

FIG. 9 is a diagram showing an example of transportation-related equipment data in the transportation condition data.

FIG. 10 is a diagram showing an example of carrier device operation data in the carrier condition data.

FIG. 11 is a flowchart illustrating an operation of the factory plan creation device according to the first embodiment.

FIG. 12 is a plan view showing an example of a layout of equipment.

FIG. 13 is a diagram illustrating an example of a calculation result of a transport load.

[Explanation of symbols]

1 precondition input device (precondition input device, importance input device), 2 precondition solution candidate generation device (precondition candidate generation device), 3 precondition solution candidate evaluation device (precondition candidate evaluation device), 4 precondition Deciding device (precondition determining means), 6 layout data generating device (layout candidate generating means), 7 layout evaluating device (layout candidate evaluating means), 8 layout deciding device (layout determining means), 10 transfer condition input device (transfer condition) Input means), 11 transportation condition solution candidate generation device (transportation condition candidate generation means), 12 transportation condition solution candidate evaluation device (transportation condition candidate evaluation means), 13 transportation condition determination device (transportation condition determination means), 14 factory plan evaluation Device (factory plan evaluation means), 16 display devices (first display means, second display means, third display means).

Continuation of the front page (56) Reference JP-A-8-229779 (JP, A) JP-A-8-77247 (JP, A) JP-A-5-108667 (JP, A) JP-A-56-19635 (JP , A) JP 9-248738 (JP, A) JP 9-325995 (JP, A) JP 10-40298 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB) Name) G05B 15/02 B23Q 41/02 B23Q 41/04 G06F 15/00

Claims (11)

(57) [Claims] 1. A prerequisite condition input means for inputting a prerequisite condition for a predetermined item in a factory plan, and a prerequisite condition candidate for another item based on the prerequisite condition for the predetermined item input by the prerequisite condition input means. Based on the evaluation by the precondition candidate evaluation unit that evaluates the precondition candidate, and the precondition candidate evaluation unit, the precondition for the other item in the factory plan is determined. The precondition determining means, the transfer condition inputting means for inputting the transfer conditions for the predetermined items regarding the transfer in the factory, and the predetermined item input by the transfer condition inputting means .
Due to the transport conditions that are
Identify other definite items and
And calculate the transport load for the other items mentioned above, and
Based on the evaluation by the transportation condition candidate generating means for generating the transportation condition candidates for the other items based on the sending load, the transportation condition candidate evaluating means for evaluating the transportation condition candidates, and the transportation condition candidate evaluating means. A transfer condition determining unit that determines a transfer condition for the other item related to the transfer in the factory plan, and the factory based on the precondition determined by the precondition determining unit and the transfer condition determined by the transport condition determining unit. A factory plan creation device having a factory plan evaluation means for evaluating a plan. 2. The transfer condition candidate evaluation means calculates the number of times of transfer between facilities based on a precondition or a transfer condition, and evaluates the candidate of the transfer condition based on at least the number of transfers. Item 1. A factory plan creation device according to item 1. 3. The factory plan creation device according to claim 2, further comprising a first display unit that displays the number of times of transportation between facilities calculated by the transportation condition candidate evaluation unit. 4. The precondition candidate generating means calculates the degree of importance of the relationship between the equipments as a precondition, based on the precondition input by the precondition input means. Factory planning device. 5. The factory plan creating apparatus according to claim 1, further comprising an importance input means for inputting an importance of a relationship between facilities as a precondition. 6. The factory plan creation device according to claim 4 or 5, further comprising a second display unit that displays a degree of importance of the relationship between the facilities as a precondition. 7. The layout candidate generating means for generating a layout candidate of the facility based on the precondition determined by the precondition determining means and the transport condition determined by the transport condition determining means. Item 1. A factory plan creation device according to item 1. 8. The factory plan creation device according to claim 7, further comprising a layout candidate evaluation unit that evaluates a facility layout candidate generated by the layout candidate generation unit. 9. The factory plan creating apparatus according to claim 8, further comprising a layout determining unit that determines the layout of the facility based on the evaluation by the layout candidate evaluating unit. 10. A third aspect of displaying the layout of the equipment determined by the layout determining means and the evaluation corresponding to the layout, and changing the display in response to the correction when the layout is corrected. The factory planning apparatus according to claim 9, further comprising display means. 11. The factory plan creating apparatus according to claim 1, wherein the factory plan evaluation means executes a simulation based on the factory plan and evaluates the factory plan based on a result of the simulation.