JP5600665B2 - Design man-hour estimation device and design man-hour estimation program - Google Patents

Description

  The present invention relates to a design man-hour estimation technique, and more particularly to a design man-hour estimation device and a design man-hour estimation program for estimating a design man-hour when drawing a product construction drawing based on a product design drawing. More specifically, based on the design drawing of the product assembled by multiple parts, the design time of the construction drawing to which information necessary for product assembly is added is predicted, and the construction drawing is released on time (issue of the drawing) The present invention relates to a device and a program that can display the excess or deficiency of design personnel necessary to adjust the personnel and adjust the personnel.

  For example, in the design schedule of a construction drawing based on a blueprint, the required creation time of the construction drawing is estimated, and the required design personnel is calculated by calculating the total required creation time during the period from the delivery date of the drawing, which is the required delivery date. Judging whether delivery date can be achieved. Conventionally, the required creation time of a drawing is calculated by multiplying the number of drawings by a fixed value of work time, with the required creation time per drawing as a fixed value.

  As a background art in this technical field, there is a technique described in, for example, Japanese Patent Laid-Open No. 2006-3950 (Patent Document 1). In Patent Document 1, in order to reduce the measurement error of the plotting processing time, it is detected whether or not the plotting processing is in the paused state by the processing of the pause state detection unit, and the detection result is calculated as the plotting processing time calculation. The technology of an information processing apparatus that is supplied to a section and measures the plotting processing time with high accuracy is described.

JP 2006-3950 A

  However, the information processing apparatus in Patent Document 1 predicts the creation time of a design drawing based on predetermined attribute information such as the number of design devices. In other words, the creation time is predicted by linear approximation with one component in the drawing as an explanatory variable, the effect of other elements cannot be considered, and the prediction is made by overlooking the component that should originally be an explanatory variable. There was a risk that accuracy would deteriorate.

  Therefore, a typical object of the present invention is to provide a technique that enables highly accurate design time estimation. More specifically, in design man-hour estimation, based on the product specification information, data that associates the appearance frequency and design time for each part in the drawing is grouped, and the design time relationship for each grouped data is expressed as a polynomial. The purpose is to formulate and estimate the creation time of the drawing using the appearance frequency of the parts to determine whether it is in time for the design delivery date, and if not, the purpose is to encourage the design personnel to be added within the design period. is there.

  The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows.

  (1) A design man-hour estimation device for estimating a design man-hour when drawing out a construction drawing of the product based on a design drawing of the product by information processing of a computer outputs information on the creation actual time when the construction drawing is created. Construction drawing creation time measurement unit, drawing component totaling unit for summing up drawing component information from design drawing information, and creation results for creating group-by-group creation result time information by grouping the creation result time from the creation result time information Construction drawing design time for creating an estimated approximation formula for construction drawing design time from the time grouping unit and the group-by-group creation actual time information, and generating drawing creation time estimation information from the drawing component information and the estimated approximation formula Determine the achievement status of the design delivery date from the estimation unit, the estimated creation time obtained from the drawing creation time estimation information, the design personnel information, and the drawing delivery date information, and adjust the personnel And having a personnel adjustment unit for displaying a screen to.

  (2) A design man-hour estimation program for operating a computer as a design man-hour estimating device for estimating a man-hour for producing a construction drawing of the product based on the product's design drawing is the actual production time when the construction drawing is created. Construction drawing creation time measurement step for outputting information, drawing component summation step for summing up drawing component information from design drawing information, and creation actual time information by group in which the creation actual time is grouped from the creation actual time information. Create an estimated approximate expression for construction drawing design time from the created actual time grouping step to be created and the group-by-group created actual time information, and generate drawing creation time estimated information from the drawing component information and the estimated approximate expression Construction drawing design time estimation step, estimated creation time obtained from the drawing creation time estimation information, design personnel information, and drawing payment It determines achievement of design delivery from the information, and executes the personnel adjustment step of displaying a screen for personnel adjustments.

  Among the inventions disclosed in the present application, effects obtained by typical ones will be briefly described as follows.

  That is, the effect obtained by a typical one can provide a technique that enables highly accurate design time estimation. More specifically, in design man-hour estimation, based on the product specification information, data that associates the appearance frequency and design time for each part in the drawing is grouped, and the design time relationship for each grouped data is expressed as a polynomial. By formulating, an estimation formula can be defined for each drawing type, and design time estimation with high accuracy becomes possible. As a result, effective personnel adjustment measures can be taken to meet the design delivery date.

It is a figure which shows an example of a structure of the design man-hour estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the flowchart explaining the process of a calculating part (construction drawing creation time measurement part) in the design man-hour estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the flowchart explaining the process of a calculating part (A production performance time grouping part, a construction drawing design time estimation part, and a staff adjustment part) in the design man-hour estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the table of drawing component information in the design effort estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the table of creation performance time information in the design man-hour estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the table of the production result time information classified by group in the design man-hour estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the table of drawing creation time estimation information in the design effort estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the significant difference test result data according to group in the design effort estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of a production performance time grouping screen in the design effort estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of drawing creation man-hour estimation formula (with welding inspection) in the design man-hour estimating device according to the embodiment of the present invention. It is a figure which shows an example of drawing preparation man-hour estimation formula (there is no welding inspection) in the design man-hour estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the correction screen of a drawing preparation man-hour estimation approximate expression in the design man-hour estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the table of design personnel information in the design effort estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the table of drawing delivery date information in the design effort estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of the screen of design delivery date determination in the design effort estimation apparatus which concerns on one embodiment of this invention. It is a figure which shows an example of a personnel adjustment screen in the design effort estimation apparatus which concerns on one embodiment of this invention.

  In the following embodiments, when it is necessary for the sake of convenience, the description will be divided into a plurality of embodiments or sections. However, unless otherwise specified, they are not irrelevant and one is the other. There are some or all of the modifications, details, supplementary explanations, and the like. Further, in the following embodiments, when referring to the number of elements (including the number, numerical value, quantity, range, etc.), especially when clearly indicated and when clearly limited to a specific number in principle, etc. Except, it is not limited to the specific number, and may be more or less than the specific number.

  Further, in the following embodiments, the constituent elements (including element steps and the like) are not necessarily indispensable unless otherwise specified and apparently essential in principle. Needless to say. Similarly, in the following embodiments, when referring to the shapes, positional relationships, etc. of the components, etc., the shapes are substantially the same unless otherwise specified, or otherwise apparent in principle. And the like are included. The same applies to the above numerical values and ranges.

[Outline of Embodiment of the Present Invention]
The design man-hour estimation apparatus according to the embodiment of the present invention (for example, the reference numerals of the corresponding components in () are added as an example) is based on the product design drawing by computer information processing. It is a design man-hour estimation device that estimates the design man-hours when drawing out, the construction drawing creation time measuring unit (1004) that outputs the creation actual time information when creating the construction drawing, and the drawing component information from the design drawing information Drawing component totaling unit (1002) to be aggregated, creation result time grouping unit (1006) for creating creation result time information by group in which the creation result time is grouped from the creation result time information, and the creation result by group An estimated approximate expression for construction drawing design time is created from the time information, and drawing creation time estimated information is generated from the drawing component information and the estimated approximate expression. The figure design time estimation unit (1008), a person who displays the screen for judging the achievement status of the design delivery date from the estimated creation time obtained from the drawing creation time estimation information, the design personnel information, and the drawing delivery date information, and adjusting the personnel And an adjustment unit (1011).

  The design man-hour estimation program according to the embodiment of the present invention (for example, the reference numerals of the corresponding components in () are added) is used when drawing out the construction drawing of the product based on the design drawing of the product. A design man-hour estimation program that operates a computer as a design man-hour estimation device for estimating a design man-hour, a construction drawing creation time measuring step (201) for outputting creation actual time information when a construction drawing is created, and a drawing from the design drawing information A drawing component totaling step (301) for totalizing component information, and a creation actual time grouping step (302, 303) for creating group-specific creation actual time information obtained by grouping the creation actual time from the creation actual time information. , Create an estimated approximation formula of construction drawing design time from the group-by-group creation actual time information, and the drawing component information and previous Construction drawing design time estimation step (304, 305) for generating drawing creation time estimation information from the estimated approximation formula, design delivery date from the estimated creation time, design personnel information and drawing delivery date information obtained from the drawing creation time estimation information It is characterized by executing the personnel adjustment steps (306, 307) for determining the achievement status and displaying a screen for performing personnel adjustment.

  An embodiment of the present invention based on the above-described outline of an embodiment of the present invention will be described in detail below with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

[One embodiment of the present invention]
A design man-hour estimation apparatus according to an embodiment of the present invention will be described with reference to FIGS. In this embodiment, the construction drawing design of the plant piping used for power plants such as nuclear power and thermal power is taken as an example, and the creation time of the construction drawing is predicted from the design drawing information by computer information processing, and the drawing of the drawing is performed. An example of a design man-hour estimation device that determines whether or not the delivery date can be achieved and displays a screen for adjusting personnel will be described. The embodiment of the present invention is also applied to a design man-hour estimation program for operating a computer as the design man-hour estimating device as described above.

<Configuration of design man-hour estimation device>
First, the configuration of the design man-hour estimating apparatus according to the present embodiment will be described with reference to FIG. FIG. 1 is a diagram showing an example of the configuration of the design man-hour estimating device.

  The design man-hour estimation device 100 according to the present embodiment includes an arithmetic unit 110, a storage unit 120, an input unit 130, an output unit 140, and a communication unit 150. The design man-hour estimation apparatus 100 is connected to a network 160 through a communication unit 150.

  The calculation unit 110 includes functional units such as a drawing component totaling unit 1002, a construction drawing creation time measurement unit 1004, a creation performance time grouping unit 1006, a construction drawing design time estimation unit 1008, and a personnel adjustment unit 1011. It is configured.

  The drawing component totaling unit 1002 is a functional unit that totals drawing component information from design drawing information.

  The construction drawing creation time measuring unit 1004 is a functional unit that outputs the creation result time information when the construction drawing is created.

  The creation result time grouping unit 1006 is a functional unit that creates group creation result time information obtained by grouping the creation result times from the creation result time information. Further, the creation result time grouping unit 1006 has a function of displaying the probability of significant difference for each grouping content on the screen for grouping the creation result time from the creation result time information.

  The construction drawing design time estimation unit 1008 is a functional unit that creates an estimated approximate expression of construction drawing design time from the group-by-group creation actual time information and generates drawing creation time estimation information from the drawing component element information and the estimated approximation expression. . Further, the construction drawing design time estimation unit 1008 has a function capable of adjusting the coefficient of the approximate expression on a screen for creating an estimated approximate expression of the construction drawing design man-hour from the group-by-group creation result time information.

  The personnel adjustment unit 1011 is a functional unit that determines the achievement status of the design delivery date from the estimated creation time obtained from the drawing creation time estimation information, the design personnel information, and the drawing delivery date information, and displays a screen for performing personnel adjustment. In addition, the personnel adjustment unit 1011 displays a function for displaying the delivery date difference for each drawing on the screen for determining the achievement status of the design delivery date, and further displays the excess / shortage time of the capacity for the design man-hour on the screen for personnel adjustment. It has a function to accept adjustments of design personnel and design personnel, and to recalculate the excess and deficiency of the capacity for the design man-hours.

  The storage unit 120 includes design drawing information 1001, drawing component information 1003, creation result time information 1005, group-by-group creation result time information 1007, drawing creation time estimation information 1009, design personnel information 1010, and drawing delivery date. Each information with the information 1012 is stored.

  The design drawing information 1001 is information on a design drawing of a product assembled by a plurality of parts. Based on the design drawing information 1001, a construction drawing to which information necessary for assembling the product is added is created.

  The drawing component information 1003 includes drawing component information and drawing type information as shown in FIG.

  The creation result time information 1005 includes information on the result creation time of the drawing as shown in FIG.

  The group creation result time information 1007 includes information on the result creation time for each group in the drawing as shown in FIG.

  The drawing creation time estimation information 1009 includes information on the drawing creation time estimation as shown in FIG.

  The design personnel information 1010 includes weekly personnel information as shown in FIG.

  The drawing delivery date information 1012 includes delivery date information for each drawing as shown in FIG.

  The design man-hour estimating apparatus 100 of the present embodiment is not limited to this, but is configured to be incorporated in a CAD system, for example. Further, each functional unit of the calculation unit 110 is not limited to this, but is constructed by software by a program, for example. Further, each information of the storage unit 120 is stored in a database on a hard disk drive, for example, although not limited thereto.

  In the design man-hour estimation apparatus 100 configured as described above, design drawing information 1001, design personnel information 1010, and drawing delivery date information 1012 input via the input unit 130, the network 160, or the communication unit 150 are stored in the storage unit 120. Remember.

  Further, drawing component information 1003 output by the drawing component totaling unit 1002 with the design drawing information 1001 as input, construction drawing creation time information 1005 measured by the construction drawing creation time measuring unit 1004, and creation time The creation actual time information 1007 grouped by the creation actual time grouping unit 1006 using the information 1005 as an input, and the construction drawing design time estimation unit 1008 using the group actual creation time information 1007 as input. The drawing creation time estimation information 1009 for creating and calculating the estimation formula is stored in the storage unit 120.

  Then, the design personnel information 1010 is updated by the personnel adjustment unit 1011 that receives the drawing creation time estimation information 1009 and the design personnel information 1010 as input and determines whether or not the drawing delivery date of the drawing can be achieved and performs personnel adjustment.

<Processing procedure of design man-hour estimation device (arithmetic unit)>
Next, a processing procedure of the design man-hour estimation apparatus 100 (calculation unit 110) according to the present embodiment will be described with reference to FIGS. FIG. 2 is a diagram illustrating an example of a flowchart for explaining processing of the construction drawing creation time measurement unit 1004. FIG. 3 is a diagram illustrating an example of a flowchart for explaining processing of the creation result time grouping unit 1006, the construction drawing design time estimation unit 1008, and the personnel adjustment unit 1011.

  The processing procedure by the construction drawing creation time measuring unit 1004 shown in FIG. 2 measures the time required to create the construction drawing, and the creation actual time that becomes the basic data for creating the design drawing creation time estimation formula This is a process for accumulating information 1005. For example, it is built in a CAD system, and a drawing creation time is measured from an operation history.

  Further, the processing procedure by the creation result time grouping unit 1006, the construction drawing design time estimation unit 1008, and the personnel adjustment unit 1011 shown in FIG. 3 creates a design drawing creation time estimation formula from the created creation time information 1005. This is a process for estimating the drawing creation time from the drawing component information 1003 and adjusting the personnel necessary to meet the design delivery date. For example, the drawing creation time is installed in the CAD system and the drawing creation time is calculated from the drawing component information 1003. Estimate, determine if the design delivery date can be achieved, and also adjust the design personnel.

  The processing procedure shown in FIG. 2 includes a construction drawing creation time measurement step 201, which is executed by the construction drawing creation time measurement unit 1004 in the configuration of the design man-hour estimation device 100 of FIG. To do.

  The processing procedure shown in FIG. 3 includes a drawing component totaling step 301, a design drawing grouping step 302, a significant difference test step 303 for creation result time information for each group, and a polynomial creation step for each grouping valid determination content. 304, a polynomial confirmation and correction step 305, a design delivery date achievement determination step 306, and a design personnel adjustment step 307.

  In the configuration of the design man-hour estimation apparatus 100 in FIG. 1, the drawing component totaling unit 1002 executes the drawing component totaling step 301, and the design drawing information 1001 is input to generate the drawing component information 1003.

  Further, the creation result time grouping unit 1006 executes the grouping step 302 of the design drawing and the significant difference test step 303 of the creation result time information for each group to generate the creation result time information 1007 for each group.

  In addition, the construction drawing design time estimation unit 1008 executes a polynomial creation step 304 and a polynomial check / correction step 305 for each grouping validity determination content to create drawing creation time estimation information 1009.

  Further, the personnel adjustment unit 1011 executes a design delivery date achievement determination step 306 and a design personnel adjustment step 307.

<Description of each table in the storage unit>
Next, processing data handled by the design man-hour estimating apparatus 100 (storage unit 120) according to the present embodiment will be described with reference to FIGS. 4 is an example of a table of drawing component information 1003, FIG. 5 is an example of a table of creation result time information 1005, FIG. 6 is an example of a table of group creation result time information 1007, and FIG. 7 is drawing creation time estimation information 1009. It is a figure which shows an example of this table, respectively.

  A configuration of data input or output in step 201 shown in FIG. 2 and steps 301 to 307 shown in FIG. 3 is shown. As these input / output data, for example, a database on a hard disk drive can be used.

  First, the design drawing information 1001 may be data such as DXF (Drawing Exchange Format), which is a CAD data format, which is a basis of construction drawing design. The design drawing information 1001 is input from the input unit 130 or from another CAD data file server or the like via the network 160 and the communication unit 150.

  Next, FIG. 4 shows an example of data of the drawing component information 1003. In this example, the drawing component information 1003 includes drawing component information and drawing type information. As for the component information of the drawing, the drawing number 401 of the target drawing is A001, the component 402 is the bolt, the finishing part, the holding tool, the drilling, the remaining heat inspection, the quantity 403 is 100 bolts, the number of finishing parts is 45, the number of holding tools Is 35, the number of drilling holes is 20, and the number of remaining heat inspections is 45.

  The drawing type information includes the drawing number 404 of the target drawing as A001, the drawing type information 405 is welding inspection, residual heat inspection, illustration, and the presence / absence information 406 is “present” for welding inspection, “existing” for residual heat inspection, “None”.

  This drawing component information 1003 is input to the drawing component totaling unit 1002, and the type and number of CAD data objects are totaled to create drawing component information. The drawing type information is obtained from the CAD data comment information. Create

  Next, FIG. 5 shows an example of data of creation result time information 1005. In this example, as the creation result time information 1005, the drawing number 501 of the target drawing is A001, A002, the result creation time 502 is 370 for A001, and 740 for A002. This creation record time information 1005 is created by measuring the drawing creation record time from the operation history or the like by the construction drawing creation time measuring unit 1004.

  Next, FIG. 6 shows data of an example of the group-by-group creation result time information 1007. In this example, as the group-by-group creation result time information 1007, the drawing number 601 of the target drawing is A001, B001, the drawing type information 602 is the welding inspection, the residual heat inspection, and the presence / absence information 603 is “Yes”, “No”, the result creation time Reference numeral 604 denotes 370 and 270. The creation result time information 1007 for each group is created by the creation result time grouping unit 1006 by matching the type information of the drawing component information 1003 and the creation result time information 1005 with reference numbers 401 and 501.

  Next, FIG. 7 shows data as an example of the drawing creation time estimation information 1009. In this example, as the drawing creation time estimation information 1009, the drawing number 701 of the target drawing is B001, and the drawing creation time 702 is 450. The drawing creation time estimation information 1009 is obtained by the construction drawing design time estimation unit 1008 performing a significant difference test of the actual work time for each drawing type from the drawing component information 1003 and the group-by-group creation actual time information 1007. Drawings are divided by drawing types determined to have a difference, a polynomial is generated for each drawing type having a significant difference, and the components of the drawing component information 1003 are used as explanatory variables, and each drawing number 701 in the drawing creation time estimation information 1009 Estimated creation time 702 is calculated.

<Detailed description of each processing step>
Next, steps 301 to 307 shown in FIG. 3 will be described in detail with reference to FIGS. In particular, an estimated approximate expression of construction drawing design time is created from creation result time information 1005 when drawing a construction drawing, drawing component information 1003, and group creation result time information 1007, and drawing component information 1003 The drawing creation time estimation information 1009 is generated from the estimated approximate expression, and the achievement status of the design delivery date is determined from the estimated creation time obtained from the drawing creation time estimation information 1009, the design personnel information 1010, and the drawing delivery date information 1012. A method for adjusting the staff by displaying the screen for performing the adjustment will be described in detail.

  In the drawing component totaling step 301, the components of the drawing are totaled from the design drawing information 1001. For example, the drawing component information 1003 is created by counting the number of pipe parts such as pipes, elbows, and flanges.

  Next, in the design drawing grouping step 302, the drawing type information 602 for each drawing number 601 is added from the type information of the drawing component information 1003, the presence / absence information 603 is added depending on the presence / absence of the welding inspection and the presence / absence of the residual heat inspection. The record creation time 604 is added with reference to the figure number 501 of the time information 1005, and the group-by-group creation record time information 1007 is created.

  Next, in the significant difference test step 303 of the creation result time information for each group, for example, the creation result time information 1005 is grouped on a discrete scale (binary data) such as the presence or absence of welding inspection and the presence or absence of residual heat inspection. When working time in a group is a population, a significant difference test of the population is performed. Here, for the significant difference test of the population, for example, a t-test (statistical method for determining whether or not the difference between the average values of the samples extracted from two populations with normal distribution is within the range of the chance error) is used. be able to.

  FIG. 8 shows an example of the significant difference test result data 800 for each group generated by the significant difference test step 303 of the creation result time information for each group. As the significant difference test result data 800 for each group, a p value 802 for each grouping content 801 is calculated in association with each other. The p value 802 represents the probability of significant difference.

  FIG. 9 shows an example of a creation result time grouping screen 900 that displays the results of performing a significant difference test using the work time by group performed in the significant difference test step 303 of the creation result time information by group as a population. . This creation result time grouping screen 900 displays grouping contents 901, a p value 902, and a grouping validity determination result 903. The grouping validity determination result 903 is displayed when the input unit 130 receives an input from the user. The grouping validity determination result 903 can be automatically determined by setting a threshold value of the p value 902 in advance.

  Next, in the polynomial creation step 304 for each grouping validity judgment content, the drawing creation time is estimated for each group determined to be valid in the grouping validity judgment result 903 in the significant difference test step 303 of the group-by-group creation result time information. Create a polynomial that In order to create this estimation polynomial, a multiple regression equation is created by using multiple regression analysis with drawing creation time as an objective variable and drawing components as explanatory variables. Here, various methods are generally known for selection of explanatory variables in the multiple regression analysis, for example, forced injection method, variable increase method, variable decrease method, stepwise method, etc. You may use. The drawing creation time estimation formula obtained by this multiple regression analysis can be calculated as Formula 1 and Formula 2, for example.

(Formula 1) Y1 = a1 * x1 + b1 * x2 + c1 * x3 + z1
However, the drawing creation prediction time (Y1) with the grouping contents 901, the partial regression coefficient (a1) of the drawing component a1, the parameter value (x1) of the drawing component a1, and the partial regression coefficient (b1 of the drawing component b1) ), The parameter value (x2) of the drawing component b1, the partial regression coefficient (c1) of the drawing component c1, the parameter value (x3) of the drawing component c1, and the intercept (z1).

(Formula 2) Y2 = a2 * x4 + b2 * x5 + c2 * x6 + z2
However, the drawing creation prediction time (Y2) without the grouping content 901, the partial regression coefficient (a2) of the drawing component a2, the parameter value (x4) of the drawing component a2, and the partial regression coefficient (b2 of the drawing component b2) ), Parameter value (x5) of drawing component b2, partial regression coefficient (c2) of drawing component c2, parameter value (x6) of drawing component c2, and intercept (z2).

  FIG. 10 shows an example of a drawing creation man-hour estimation formula with welding inspection. The number of bolts is 100, the number of finishing points is 45, the number of holding tools is 30, and the partial regression coefficient of bolts is 26.6, the number of finishing tools is 30.5, and the number of holding tools is 30.5. The partial regression coefficient is 88.2 and the intercept is 101.4.

  FIG. 11 shows an example of a drawing creation man-hour estimation formula without welding inspection. The number of bolts is 33, the number of holes is 20, and the number of holders is 35, and the component number of the bolts is 70.2, the coefficient of regression of the bolts is 70.2, the coefficient of regression of the holes is 36.7, and the number of holders The regression coefficient is 12.6 and the intercept is 123.4.

Next, in the polynomial confirmation / correction step 305, the input unit 130 receives and corrects the request from the user for the correction of the drawing creation man-hour estimation formula created in the polynomial creation step 304 for each grouping validity determination content. FIG. 12 shows an example of a modification screen 1200 for drawing creation man-hour estimation formula (estimation approximation formula). In this correction screen 1200, each drawing regression man-hour prediction formula with welding inspection: Y1 partial regression coefficients (26.6, 30.5, 88.2), drawing creation man-hour prediction formula without welding inspection: each deviation of Y2 The regression coefficients (70.2, 36.7, 12.6) can be adjusted and adjusted by the user. Further, in the example of FIG. 12, the welding inspection There drafting effort prediction equation of: ^R 2 (R-squared value) was 0.89 next to the Y1, drafting effort prediction equation without welding inspection: ^{R 2} of Y2 is 0. 71.

  Next, in the design delivery date feasibility determination step 306, it is determined whether or not the design delivery date can be achieved using the design personnel information 1010 and the drawing delivery date information 1012. FIG. 13 shows an example of design personnel information 1010. As the design personnel information 1010, the personnel 1302 is registered every 1301 per week, and the design personnel information on a weekly basis is such that the week of June 13, 2011 is 30 person days and the week of June 20, 2011 is 28 person days. It has become. Regardless of the week, it may be set by daily or monthly personnel, and the unit period is not particularly defined.

  FIG. 14 shows an example of the drawing delivery date information 1012. As the drawing delivery date information 1012, a delivery date 1402 for each drawing number 1401 is registered. The drawing number A001 has a delivery date of July 1, 2011, and the drawing number A002 has a delivery date of July 10, 2011. .

  FIG. 15 shows an example of a design delivery date determination screen 1500 evaluated in the design delivery date achievement determination step 306. This design delivery date determination screen 1500 displays a drawing number 1501, a design start 1502, a drawing schedule 1503, a delivery date 1504, and a delivery date difference 1505. In this example, the drawing number A003 is designed on June 30, 2011, and is scheduled for sunrise on July 15, 2011 with respect to the delivery date on July 12, 2011. Therefore, the delivery date difference is +3 days (3 Adjustments are necessary. Similarly, the delivery number difference for drawing number A005 is +2 days and needs to be adjusted.

  Next, in the design personnel adjustment step 307, the personnel is adjusted for the determination that the delivery date difference is + (delay) in step 306. FIG. 16 shows an example of a personnel adjustment screen 1600 in which the input unit 130 accepts a request from the user and adjusts the personnel in the design personnel adjustment step 307. On the personnel adjustment screen 1600, a week 1601, a design man-hour 1602, a current capacity 1603, an excess / deficiency 1604, and a personnel 1605 are displayed. In this example, the week of June 20, 2011 is 28 days of personnel, and the current capacity of 980 hours for the design man-hour of 1050 hours, so the excess or shortage becomes -70 hours (70 hours shortage) Adjustment is required. Similarly, the excess or deficiency is -25 hours in the week of July 4, 2011, and personnel adjustment is required.

  In FIG. 16, when personnel adjustment is required, the adjustment of personnel from the user can be accepted, and the excess or deficiency of the capacity with respect to the design man-hour can be recalculated. For example, in the example of the week of June 20, 2011 on the personnel adjustment screen 1600 in FIG. 16, since the personnel of 28 days is excessive or insufficient of −70 hours, the confirmation is executed after correcting the personnel to 30 days. It can be recalculated. As a result of this recalculation, if the excess or deficiency becomes 0Hr or + Hr, the personnel adjustment measures to increase 28 man-days to 30 man-days are taken.

<Effects of the present embodiment>
As described above, according to the design man-hour estimating apparatus 100 according to the present embodiment, the construction drawing creation time measuring unit 1004, the drawing component totaling unit 1002, the creation result time grouping unit 1006, and the construction drawing design. By having the time estimation unit 1008 and the personnel adjustment unit 1011, it is determined whether it is in time for the design delivery date by estimating the construction drawing creation time, and if it is not in time, the design personnel is added within the design period. Can be displayed.

  Furthermore, the following effects can be obtained. (1) The delivery date difference for each drawing can be displayed on the design delivery date judgment screen 1500. (2) On the personnel adjustment screen 1600, it is possible to display the excess / deficiency time of the capacity with respect to the design man-hour. (3) On the personnel adjustment screen 1600, the adjustment of the design personnel can be accepted, and the excess or deficiency of the capacity with respect to the design man-hour can be recalculated. (4) On the creation result time grouping screen 900, the probability of significant difference for each grouping content can be displayed. (5) In the drawing creation man-hour estimation approximate expression correction screen 1200, the coefficient of the approximate expression can be adjusted.

  As described above, in the design man-hour estimation, based on the product specification information, the data that associates the appearance frequency and design time for each part in the drawing is grouped, and the design time relationship for each grouped data is expressed by a polynomial. By formulating, an estimation formula can be defined for each drawing type, and design time estimation with high accuracy becomes possible. As a result, effective personnel adjustment measures can be taken to meet the design delivery date.

  Also in the design man-hour estimation program according to the present embodiment, the same effects as those of the design man-hour estimation device 100 can be obtained by executing step 201 and steps 301 to 307.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  The design man-hour estimation technology of the present invention predicts the design time of a construction drawing to which information necessary for assembling the product is added based on the design drawing of the product assembled by a plurality of parts, and the construction drawing is delivered on time. The present invention is applicable to an apparatus and a program that can display the excess or deficiency of design personnel required for (issue of drawing) and adjust the personnel.

DESCRIPTION OF SYMBOLS 100 ... Design effort estimation apparatus, 110 ... Operation part, 120 ... Memory | storage part, 130 ... Input part, 140 ... Output part, 150 ... Communication part, 160 ... Network,
1002 ... Drawing component totaling unit, 1004 ... Construction drawing creation time measurement unit, 1006 ... Creation result time grouping unit, 1008 ... Construction drawing design time estimation unit, 1011 ... Personnel adjustment unit,
DESCRIPTION OF SYMBOLS 1001 ... Design drawing information, 1003 ... Drawing component information, 1005 ... Creation result time information, 1007 ... Creation result time information classified by group, 1009 ... Drawing creation time estimation information, 1010 ... Design personnel information, 1012 ... Drawing delivery date information.

Claims (12)

A design man-hour estimating device for estimating a man-hour for producing a construction drawing of the product based on a design drawing of the product by information processing of a computer,
The construction drawing creation time measurement unit that outputs the creation performance time information when creating the construction drawing,
A drawing component totaling unit that totals drawing component information from design drawing information;
Creation achievement time grouping unit for creating creation achievement time information for each group in which creation achievement times are grouped from the creation achievement time information,
A construction drawing design time estimation unit that creates an estimated approximation formula of construction drawing design time from the group-by-group creation actual time information, and generates drawing creation time estimation information from the drawing component information and the estimated approximation formula;
It has a personnel adjustment unit for determining the achievement status of the design delivery date from the estimated creation time obtained from the drawing creation time estimation information, design personnel information, and drawing delivery date information, and displaying a screen for performing personnel adjustment. Design man-hour estimation device. In the design man-hour estimation device according to claim 1,
The staff adjustment unit displays a delivery time difference for each drawing on a screen for determining the achievement status of the design delivery date. In the design man-hour estimation device according to claim 2,
The manpower adjusting unit displays an excess / deficiency time of the capacity with respect to the design man-hour on the screen for performing the manpower adjustment. In the design man-hour estimation device according to claim 3,
The manpower adjusting unit accepts the adjustment of the design manpower on the screen for performing the manpower adjustment, and recalculates the excess or deficiency of the capacity with respect to the design manpower. In the design man-hour estimation device according to claim 1,
The creation achievement time grouping unit displays a probability of significant difference for each grouping content on a screen for grouping creation achievement times from the creation achievement time information. In the design man-hour estimation device according to claim 1,
The construction drawing design time estimation unit is capable of adjusting a coefficient of an approximation formula on a screen for creating an estimated approximation formula of construction drawing design man-hour from the group-by-group creation result time information. A design man-hour estimation program for operating a computer as a design man-hour estimating device for estimating a man-hour for design when drawing out a construction drawing of the product based on a product design drawing,
Construction drawing creation time measurement step for outputting creation actual time information when creating construction drawings,
A drawing component totaling step for totaling drawing component information from the design drawing information;
Creation achievement time grouping step for creating creation achievement time information by group in which creation achievement times are grouped from the creation achievement time information,
Construction drawing design time estimation step for creating an estimated approximation formula for construction drawing design time from the group-by-group creation actual time information, and generating drawing creation time estimation information from the drawing component information and the estimated approximation formula;
Determining the achievement status of the design delivery date from the estimated creation time obtained from the drawing creation time estimation information, the design personnel information, and the drawing delivery date information, and causing the computer to execute a personnel adjustment step for displaying a screen for performing personnel adjustment. A design man-hour estimation program. In the design man-hour estimation program according to claim 7,
In the personnel adjustment step, a design man-hour estimation program for displaying a delivery date difference for each drawing on a screen for determining the achievement status of the design delivery date. In the design man-hour estimation program according to claim 8,
In the personnel adjustment step, a design man-hour estimation program characterized by displaying an excess or deficiency time of the capacity with respect to the design man-hour on a screen for performing the personnel adjustment. In the design man-hour estimation program according to claim 9,
In the personnel adjustment step, a design man-hour estimation program characterized in that, on the screen for performing the manpower adjustment, accepts the adjustment of the design personnel and recalculates the excess or deficiency of the capacity with respect to the design man-hour. In the design man-hour estimation program according to claim 7,
In the creation result time grouping step, a design man-hour estimation program for displaying a probability of significant difference for each grouping content on a screen for grouping creation result times from the creation result time information. In the design man-hour estimation program according to claim 7,
In the construction drawing design time estimation step, a design man-hour estimation program capable of adjusting a coefficient of an approximation formula on a screen for creating an estimated approximation formula of construction drawing design man-hours from the group-by-group creation result time information.

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