JPH1078985A - Cost accumulation simulation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cost accumulation simulation system which can quickly perform the highly accurate calculation of cost and also can calculate the cost with trial and error. SOLUTION: The calculation of cost is carried out by a cost calculation function 3 based on both item and constitution information which are stored in a design data base 1, the reference unit necessary time information on production of each item, the production place information, the loading information on every production place, the management cost information on every production place and the unit necessary time calculation ratio information that manages the information to calculate the unit necessary time of every band of the production lot size, and the cost information stored in a cost data base 3 respectively. Thus, the cost is calculated in consideration of the material cost, the labor cost, the management cost, etc., and also in response to the purchase lot size and the production lot size.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cost stacking simulation system, and more particularly, to a cost stacking simulation system capable of repeating a trial and error with respect to a cost estimate and enabling a simulation to be compared.

[0002]

2. Description of the Related Art FIG. 14 is a block diagram showing a configuration example of a conventional cost estimation system.

In this conventional example, as shown in FIG. 14, a drawing database 101 storing drawings created in the past is stored.
And a component type and the number of elements required for estimation are extracted from the drawings stored in the drawing database 101, and a component type and the number of elements are extracted from the new drawing data 108 to be estimated. Data extraction means 102 and estimation data extraction means 1
02, a cost information file 103 storing data extracted from the drawing database 101 among the data extracted in 02, a standard cost calculating unit 104 for calculating a standard cost based on the data stored in the cost information file 103, Standard cost data file 105 in which standard costs calculated by standard cost calculating means 104 are stored
Cost calculation for calculating the cost of the new drawing data 108 based on the data extracted from the new drawing data 108 and the data stored in the standard cost data file 105 among the data extracted by the estimation data extracting means 102 Means 106 and display means 107 for displaying the cost of the new drawing data 108 calculated by the cost calculating means 106 (Japanese Patent Laid-Open No. 6-1032).
No. 74). Note that in the new drawing data 108 and the drawings stored in the drawing database 101, attribute data 109 composed of component types and price data
Is added. The component type referred to here is a classification of a sheet metal component, a cut component, a molded component, and the like, and the element is a line segment or an arc included in the CAD shape data.

[0004] The processing operation of the cost estimation system configured as described above will be described below.

[0005] First, the estimate data extracting means 102 extracts a part type and the number of elements, which are data necessary for an estimate, from the drawings stored in the drawing database 101 and stores them in the cost information file 103.

Next, in the standard cost calculating means 104,
The standard cost is calculated based on the data stored in the cost information file 103, and the calculated standard cost is stored in the standard cost data file 105.

By the above-described processing operation, standard cost data for estimation is created.

Here, when actually estimating a newly created drawing, first, the estimation data extracting means 102 extracts the component type and the number of elements from the new drawing data 108 and outputs them to the cost calculating means 106. You.

Then, the cost of the new drawing data 108 is calculated by the cost calculating means 106 based on the data extracted from the new drawing data 108 and the data stored in the standard cost data file 105.

After that, the cost of the new drawing data 108 calculated by the cost calculating means 106 is displayed on the display means 107.

[0011]

However, the above-mentioned conventional device has the following problems.

(1) Since the cost is calculated based only on the data described in the drawings, the calculated cost is only for the material cost of the component parts, and the unit required time in the production of each item is calculated. The cost for labor cost calculated from the information has not been calculated, and the calculation has not been made according to the purchase lot size and production lot size, and is calculated as the cost actually spent on the product or item. There is a possibility that the cost may be significantly different from the cost.

In this case, when the unit required time information is fetched, the processing becomes complicated.

(2) The cost estimation system as described above is usually positioned as a core system, and processing is performed in a large-sized machine, so that the processing time is long and data is managed as machine data. It is not possible to change and execute data by trial and error. Therefore, the price cannot be quickly evaluated, and the calculated cost cannot be evaluated by trial and error.

(3) In the output from the above-mentioned large-sized machine, since only the specification of the parts table image is output, the price cannot be quickly evaluated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and can quickly and accurately perform cost calculation, and can perform cost calculation by trial and error. It is an object of the present invention to provide a cost accumulation simulation system that can also perform the cost accumulation simulation system.

[0017]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is a cost accumulation simulation system for calculating the cost of a desired product, in which item information and configuration information constituting the product are stored. Design database and reference unit required time information, manufacturing location information, loading information for each manufacturing location, management cost information for each manufacturing location, and unit requirements for each band band of manufacturing lot size in the manufacture of each item constituting the product A reference information database storing unit required time calculation ratio information for managing information for calculating time, and a cost database storing cost information corresponding to item information stored in the design database, Estimation instruction means for instructing cost estimation and cost estimation instruction in the estimation instruction means Cost calculation means for expanding the item information and the configuration information stored in the design database and calculating the estimation result using the information stored in the reference information database and the cost information stored in the cost database And an estimation result database in which the estimation result calculated by the cost calculation means is stored and managed for each estimation, and an evaluation means for displaying the estimation result stored in the estimation result database. .

[0018] Further, information stored in the design database, the reference information database and the estimation database, and a plurality of proposal data management means for managing the estimation instruction in the estimation instruction means as a set, Data maintenance means for temporarily changing information managed by the plan data management means for simulation without changing information stored in each of the design database, the reference information database, and the cost database. It is characterized by.

Further, the information data stored in the design database, the reference information database and the cost database is characterized in that a group technology code set for each similar item is added.

Further, the information stored in the cost database includes information for each production site for each item, information for specific users among users to be estimated, and replacement or partition in the company. And information of the following.

Further, the information stored in the cost database is managed for each band band of the purchase lot size of each item.

Further, the cost calculation means calculates a required amount of material required for the product set by the estimation instruction means, and calculates a cost of each purchase lot size band band stored in the cost database. Of these, the cost corresponding to the required quantity is selected, the purchase cost is directly calculated from the selected cost and the required quantity, and the unit required time for each band band of the production lot size stored in the reference information database. From the calculation ratios, a unit required time calculation ratio corresponding to the required amount is selected, and a unit required time to be used is determined based on the selected unit required time calculation ratio and a reference unit required time stored in the reference information database. And the calculated unit required time, the required amount, and the loading information stored in the reference information database. Directly calculates the manufacturing cost, and calculates the estimated result by adding the administrative costs which are stored the direct purchase costs and the direct manufacturing costs to the reference database.

When the information stored in each of the design database, the reference information database, and the cost database is not found and the corresponding information does not exist, the information stored in each is automatically corrected. It is characterized by having automatic data correction means.

The automatic data correcting means outputs an error list when information stored in each of the design database, the reference information database and the cost database does not exist when the information is extracted. It is characterized by doing.

(Operation) In the present invention configured as described above, the cost calculation processing in the cost calculation means is performed by using the item information and the configuration information stored in the design database.
In addition, reference unit required time information in manufacturing each item stored in the reference database, manufacturing location information, loading information for each manufacturing location, management cost information for each manufacturing location, and unit required time for each band band of manufacturing lot size Unit required time calculation ratio information that manages information for calculating
In addition, since the calculation is performed based on the cost information stored in the cost database, the material cost, the labor cost, the management cost, and the like are all taken into consideration, and the calculation is performed according to the purchase lot size and the production lot size. As a result, the calculated costs do not differ significantly from the costs actually spent on the product or item.

[0026] Further, a plurality of data management means for managing information stored in each database as a set,
Information managed in the alternative plan data management means,
If a data maintenance unit is provided to temporarily change the information stored in each database for simulation without changing it, the estimation results displayed in the evaluation unit can be changed in another environment. Therefore, it is possible to compare and evaluate the estimation result displayed on the evaluation means with the estimation result after the change, and it is possible to perform an evaluation with trial and error.

When information stored in each database is extracted, if there is no corresponding information, an automatic data correcting means for automatically correcting the information stored in each database is provided. A group technology code of the information is extracted, and information on cost and reference unit required time corresponding to the group technology code is extracted, and cost information and reference unit required time information are automatically corrected as approximate data.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a cost accumulation simulation system according to the present invention.

In this embodiment, as shown in FIG. 1, a design database 1 in which item information and configuration information constituting products designed in the past are stored, reference unit required time information in manufacturing each item, and a manufacturing location Information, loading information for each manufacturing location, management cost information for each manufacturing location, and unit required time for each band band of the manufacturing lot size (hereinafter referred to as ST)
A reference information database 2 storing ST calculation ratio information for managing information for calculating the cost information; a cost database 3 storing cost information corresponding to item information stored in the design database 1; Estimation instruction function 4 for instructing estimation, and estimation instruction function 4
Expands the item information and configuration information stored in the design database 1 in accordance with the cost estimation instructions in
A cost calculation function 5 for calculating an estimation result using information stored in the reference information database 2 and cost information stored in the cost database 3; and a cost calculation function 5
The estimation result calculated in is stored for each estimation.
Estimation result database 6 to be managed, evaluation function 10 for displaying the estimation result stored in estimation result database 6, information stored in design database 1, reference information database 2 and estimation database 6, and estimation A multiple plan data management function 8 for managing a set of estimation instructions in the instruction function 4, and information managed by the multiple plan data management function 8 are stored in a design database 1 and a reference information database 2.
A data maintenance function 7 for temporarily changing the information stored in each of the cost databases 3 for the simulation without changing them, and a design database 1,
When the information stored in each of the reference information database 2 and the cost database 3 is extracted, if there is no corresponding information, the data automatic correction function 9 automatically corrects the information.

The data stored in the design database 1, the reference information database 2, and the cost database 3 are added with a group technology (hereinafter, referred to as GT) code set for each similar item.

The information stored in the cost database 3 includes data for each production site for each item,
It is composed of multiple cost data including data for specific users among the users to be estimated and data on the basis of replacement or partitioning within the company, and is managed for each band of purchased lot size of each item. I have.

FIGS. 2 to 7 are diagrams each showing an example of information in each component shown in FIG. 1, and FIG. 2 is an example of the estimation information of the output file in the estimation instruction function 4 shown in FIG. FIG. 3 is a diagram showing an example of cost information stored in the cost database 3 shown in FIG. 1, and FIG. 4 is a diagram showing a reference unit requirement stored in the reference information database 2 shown in FIG. A diagram showing an example of time information,
FIG. 5 is a diagram showing an example of loading information stored in the reference information database 2 shown in FIG. 1, and FIG. 6 is an example of management cost ratio information stored in the reference information database 2 shown in FIG. FIG. 7 is a diagram showing an example of unit required time calculation ratio information stored in the reference information database 2 shown in FIG.

The processing operation in the cost accumulation simulation system configured as described above will be described below.

When performing cost estimation, first, in the estimation instruction function 4, the product name and quantity of the product to be estimated and the type of cost information corresponding to the type to be estimated are set.

Then, the cost calculation function 5 sequentially extracts and expands the item information and the configuration information stored in the design database 1 that correspond to the settings in the estimation instruction function 4, thereby providing the estimation instruction function. The required amount of materials required for the product set in 4 is calculated.

When the required amount of the material is calculated, the cost corresponding to the calculated required amount is selected from the costs for each band of the purchased lot size stored in the cost database 3, and the selected cost is selected. The purchase cost is directly calculated from the calculated ST and the required amount, and among the ST calculation ratio and the reference ST for each band band of the production lot size stored in the reference information database 2, the ST corresponding to the calculated required amount is calculated. The calculation ratio and the reference ST are selected, the ST to be used is calculated from the selected ST calculation ratio and the reference ST, and the manufacturing cost is directly calculated from the calculated ST, its required amount, and the loading information.

Thereafter, in the cost calculation function 5, the direct purchase cost, the direct production cost, and the management cost stored in the reference database 2 are added, and the estimation result is calculated.
It is stored in the estimation result database 6.

In the operation of calculating the estimation result in the cost calculation function 5, the items constituting the product set in the estimation instruction function 4 are expanded from the lower order to the higher order, and the estimation result of the entire product is finally calculated. You.

FIGS. 8 to 11 are diagrams showing an example of a calculation method in the cost calculation function 5 shown in FIG. 1. FIG.
FIG. 9 is a diagram showing an example of a method of calculating a material cost in the cost calculation function 5 shown in FIG. 1; FIGS. 9 and 10 are diagrams showing an example of a method of calculating a labor cost in the cost calculation function 5 shown in FIG. 1;
FIG. 11 is a diagram showing an example of a method of calculating a management cost in the cost calculation function 5 shown in FIG.

Further, when necessary data is developed in the cost calculation function 5, the cost and the standard S corresponding to the item information are developed.
If the data of T is not found, the automatic data correction function 9
In, data correction processing is performed.

In the correction processing in the automatic data correction function 9, the reference database 2 and the cost database 3
If there is no data corresponding to the item information in the data, the GT code of the item information is extracted, and the cost and reference ST data corresponding to the GT code are extracted. Automatically corrected and output to the estimation result database 6, and an error list is output as an error processing corresponding processing request.

After the above series of operations is completed, the estimation function 10 displays the estimation result output to the estimation result database 6.

FIGS. 12 and 13 are views showing display examples of the evaluation function 10 shown in FIG.

The detailed image shown in FIG. 12 is almost the same as the output in the conventional core system. When displayed on the screen, the lower-level development is performed by specifying the product name, and information on the lower-level parts is displayed. Only is displayed.

The system shown in FIG. 13 is greatly different from the conventional system, and is displayed using a graph or the like so that the estimation result can be easily analyzed. For example, material costs, labor costs, and management costs for each month of occurrence are displayed in a histogram, and allocations are displayed. The required amount for each end part item in the overall estimate and the allocation to the total cost are displayed at a glance Be recognized.

After that, when the configuration information and the number of man-hours are changed with respect to the display contents in the evaluation function 10, the change is performed in the data maintenance function 7.

In the data maintenance function 7, the information displayed in the evaluation function 10 is used for simulation without changing the information stored in each of the design database 1, the reference information database 2 and the cost database 3. Since it is temporarily changed, the estimation result displayed in the evaluation function 10 and the estimation result after the change are stored in different environments in the plural-plan data management function 8.

As a result, the estimation result displayed in the evaluation function 10 can be compared with the changed estimation result, and the evaluation can be performed by trial and error.

[0050]

Since the present invention is constructed as described above, it has the following effects.

According to the first aspect of the present invention, the cost calculation processing in the cost calculation means is performed by using the item information and the configuration information stored in the design database and the standard for manufacturing each item stored in the reference database. Unit required time information, manufacturing location information, loading information for each manufacturing location, management cost information for each manufacturing location, and unit required time calculation ratio information that manages information for calculating the unit required time for each band band of the manufacturing lot size , And is configured to be performed based on the cost information stored in the cost database, so that material costs, labor costs, management costs, and the like are all taken into consideration, and are adjusted to the purchase lot size and the production lot size. Calculations can be made.

As a result, the cost can be accurately calculated with respect to the cost actually spent on the product or the item.

Further, in the second aspect,
Multiple-plan data management means for managing information stored in each database as a set, and changing information managed in the multiple-plan data management means to information stored in each database. And a data maintenance unit that is temporarily changed for simulation is provided, so that the estimation result displayed by the evaluation unit can be changed in another environment, and the estimation result displayed by the evaluation unit and the estimation after the change are changed. It is possible to compare with the result.

As a result, an evaluation with trial and error can be performed.

According to the seventh and eighth aspects, when the information stored in each database is extracted and the corresponding information does not exist, the information stored in each database is automatically extracted. Since the automatic data correction means for correction is provided, the group technology code of the item information is extracted, and information on the cost and the standard unit required time corresponding to the group technology code is extracted, and the cost information and the standard unit required time are calculated as approximate data. Automatic correction can be performed on the information.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a cost accumulation simulation system according to the present invention.

FIG. 2 is a diagram illustrating an example of estimation information of an output file in the estimation instruction function illustrated in FIG. 1;

FIG. 3 is a diagram illustrating an example of cost information stored in a cost database illustrated in FIG. 1;

FIG. 4 is a diagram showing an example of reference unit required time information stored in the reference information database shown in FIG. 1;

FIG. 5 is a diagram showing an example of loading information stored in a reference information database shown in FIG.

6 is a diagram showing an example of management cost ratio information stored in a reference information database shown in FIG.

7 is a diagram showing an example of unit required time calculation ratio information stored in a reference information database shown in FIG. 1;

FIG. 8 is a diagram illustrating an example of a method of calculating a material cost in the cost calculation function illustrated in FIG. 1;

9 is a diagram showing an example of a method of calculating labor costs in the cost calculation function shown in FIG.

FIG. 10 is a diagram illustrating an example of a method of calculating labor costs in the cost calculation function illustrated in FIG. 1;

11 is a diagram showing an example of a method of calculating a management cost in the cost calculation function shown in FIG.

FIG. 12 is a diagram showing a display example in the evaluation function shown in FIG. 1;

FIG. 13 is a diagram showing a display example in the evaluation function shown in FIG. 1;

FIG. 14 is a block diagram showing a configuration example of a conventional cost estimation system.

[Description of Signs] 1 Design database 2 Reference information database 3 Cost database 4 Estimation instruction function 5 Cost calculation function 6 Estimation result database 7 Data maintenance function 8 Multiple data management function 9 Automatic data correction function 10 Evaluation function

Claims (8)

[Claims] 1. A cost accumulation simulation system for calculating the cost of a desired product, comprising: a design database storing information on items constituting the product and configuration information; Unit required time calculation ratio that manages reference unit required time information, manufacturing location information, loading information for each manufacturing location, management cost information for each manufacturing location, and information for calculating unit required time for each band band of manufacturing lot size A reference information database in which information is stored; a cost database in which cost information corresponding to the item information stored in the design database is stored; estimate instruction means for instructing a cost estimate; and the estimate instruction means Item information stored in the design database according to the cost estimation instructions in Cost calculation means for expanding the configuration information and calculating an estimation result using the information stored in the reference information database and the cost information stored in the cost database; and the estimate calculated by the cost calculation means. A cost accumulation simulation system comprising: an estimation result database in which results are stored and managed for each estimation; and evaluation means for displaying the estimation results stored in the estimation result database. 2. The cost accumulation simulation system according to claim 1, wherein information stored in the design database, the reference information database, and the estimation database, and an estimation instruction in the estimation instruction means are managed as a set. A plurality of alternative data management means for simulating information managed by the alternative data management means without changing information stored in each of the design database, the reference information database and the cost database. And a data maintenance means for temporarily changing the cost. 3. The cost accumulation simulation system according to claim 2, wherein the design database, the reference information database, and the information data stored in the cost database each include a group technology code set for each similar item. A cost accumulation simulation system characterized by the addition of. 4. The cost accumulation simulation system according to claim 3, wherein the information stored in the cost database includes information on a production base for each item, and information on a specific user among estimation-targeted users. A cost stacking simulation system comprising information and information on the basis of replacement within a company or on a partition basis. 5. The cost accumulation simulation system according to claim 4, wherein the information stored in the cost database is managed for each band band of the purchase lot size of each item. system. 6. The cost accumulation simulation system according to claim 5, wherein the cost calculation unit calculates a required amount of a material required for the product set by the estimation instruction unit, and is stored in the cost database. The cost corresponding to the required amount is selected from the costs in each band band of the purchased lot size, and the purchase cost is directly calculated from the selected cost and the required amount, and stored in the reference information database. The unit required time calculation ratio corresponding to the required amount is selected from the unit required time calculation ratios for each band band of the production lot size, and the selected unit required time calculation ratio and the selected unit required time calculation ratio are stored in the reference information database. The required unit time to be used is calculated from the reference unit required time, and the calculated unit required time and the required And the direct production cost is calculated from the loading information stored in the reference information database, and the estimation result is obtained by adding the direct purchase cost, the direct production cost, and the management cost stored in the reference database. A cost accumulation simulation system characterized by calculating 7. The cost accumulation simulation system according to claim 6, wherein when information stored in each of the design database, the reference information database, and the cost database is extracted, there is no corresponding information. A cost accumulation simulation system having automatic data correction means for automatically correcting information stored in each of them. 8. The cost accumulation simulation system according to claim 7, wherein the data automatic correction unit is configured to extract information stored in each of the design database, the reference information database, and the cost database. A cost stacking simulation system, which outputs an error list when there is no corresponding information.