WO2017056207A1

WO2017056207A1 - Design rule generation device

Info

Publication number: WO2017056207A1
Application number: PCT/JP2015/077641
Authority: WO
Inventors: 仲田　輝男
Original assignee: 株式会社日立製作所
Priority date: 2015-09-30
Filing date: 2015-09-30
Publication date: 2017-04-06

Abstract

The purpose of the present invention is to make it possible to generate a group of design rules that allows the determination of many, preferably all, product specifications. In order to accomplish this purpose, when a design rule using a certain selected product specification as a child parameter is to be generated, the device according to the present invention uses, as parent parameter candidates for the design rule, requested specifications and other product specifications except for offspring parameters of the selected product specification. The device according to the present invention repeats this design rule generation process so as to generate a group of design rules for product specifications for which no design rules are currently available.

Description

Design rule generator

The present invention relates to a design rule generation device.

In order-made products such as plants and infrastructure equipment that design products after receiving customer requirements, product specification design devices that automatically determine product specifications are often used to improve design efficiency. This product specification design device requires a design rule for determining product specifications. As a background art of this design rule generation, there is JP 2010-128699 A (Patent Document 1). The design rule generation device of this publication is disclosed in [0010] of Patent Document 1 “Design rules are the items of the required specifications and the required values for the IF part (preceding part), the design items and the design values for the IF. As described in “The rule of the THEN part (consequent part)”, the IF part specifies the items of the required specifications and the required values for them.

JP 2010-128699 A

The technology of Patent Document 1 can be applied only to actual products. Since there are some product specification items of actual products that cannot be determined unless the specification values of other product specification items are determined in addition to the required specification items, the technology disclosed in Patent Document 1 includes products for all product specification items. The specification value cannot be determined.

Therefore, a design rule is required that inputs the required value of the required specification item and the specification value of the other product specification item and outputs the specification value of the product specification item.

However, in this case, the specification value may not be determined depending on other input product specification items.

An object of the present invention is to provide a design rule generation device capable of determining the specification values of more, preferably all product specification items.

The applicant has found that there is something in common as a result of analyzing product specification items for which specification values could not be determined.

First, the specification item on the input side (IF part) of the design rule is the parent parameter, the specification item on the output side (THEN part) is the child parameter, and the specification item that is a child parameter for the specification item of the child parameter is the parent parameter. A grandchild parameter for a parameter, a child parameter specification item for a grandchild parameter specification item, a grandchild parameter for a parent parameter, a child parameter, a grandchild, a grandchild, etc. Define descendant parameters for.

Based on this definition, when generating a design rule that targets a product specification (child parameter), if a design rule that defines the child parameter and the descendant parameter of the child parameter is generated as a parent parameter of the target design rule Because the design rule loops, the specification value could not be determined.

Therefore, in order to solve the above problems, the present inventors, when generating a design rule with a certain product specification as a child parameter, set the parameter excluding the descendant parameter of the child parameter as a parent parameter candidate as a design rule. It was decided to generate.

According to the present invention, it is possible to generate design rules that can determine more, preferably all product specification items.

It is the figure which showed the structure of the design rule production | generation apparatus. It is the figure which showed the flow of the design rule production | generation process performed in a design rule production | generation part. It is the figure which showed the design rule confirmation and registration screen. It is the figure which showed parameter parent-child relationship data. It is the figure which showed parameter master data. It is the figure which showed design performance data. It is the figure which showed the design rule production | generation order data. It is the figure which showed evaluation result data. It is the figure which showed the parent-child relationship of a parameter. It is the figure which showed the example which produces | generates a some design rule.

Examples of the present invention will be described below, but the present invention is not limited to the following examples.

[Basic configuration]
FIG. 1 shows the configuration of the design rule generation apparatus. The design rule generation apparatus according to the present embodiment includes an input / output unit 101 having a function of performing input / output through an input / output device, a storage unit 102, and a calculation unit 103. The storage unit 102 stores parameter parent-child relationship data 104, parameter master data 105, design performance data 106, design rule generation order data 107, and evaluation result data 108. The calculation unit 103 includes a design rule generation processing unit 109. The processing of each unit and stored data will be described later.

The design rule generation device transmits the generated design rule to a product specification design device (not shown), and product design is performed.
[Processing flow]
FIG. 2 shows a design rule generation processing flow executed in the design rule generation processing unit.

Some design rules are partially determined in advance from theoretical formulas or design standards. Therefore, in step 201, if there is a given design rule, the parameter parent-child relationship data 104 is generated based on that. An example of the parameter parent-child relationship data 104 is shown in FIG. The parameter parent-child relationship data 104 defines a child parameter determined by the design rule, a parent parameter related to the determination of the child parameter, and a relationship between the parent parameter and the child parameter as a design rule. Also, since different design rules are generated according to the design rule generation order for each parameter, a design rule proposal No. is defined, and a group of design rules having the same design rule proposal No. is regarded as one design rule.

In step 201, for example, when O = A + B is given as a given design rule through the input / output unit 101, O is a child parameter, A is a parent parameter 1, B is a parent parameter 2, and O = A + B. Is stored in the parameter parent-child relationship data 104 of the storage unit 102 as a design rule. At this time, the design rule draft No. is 1. This parent-child relationship is illustrated in FIG.

In step 202, parameters that are not used in the definition of the design rule for determining the product specifications are extracted from the parameter parent-child relationship data 104 and the parameter master data 105. An example of the parameter master data 105 is shown in FIG. In the parameter master data 105, for each parameter, an attribute is defined for classifying whether the parameter is a parameter having a requirement specification given in advance or a parameter having a product specification determined based on a design rule. In the example of FIG. 5, the attributes for classifying each are defined as “request” and “product”.

In step 202, it is checked whether or not all the parameters whose attribute in the category field of the parameter master data 105 is “product” are registered in the child parameters of the parameter parent-child relationship data 104, and the child parameters of the parameter parent-child relationship data 104 are checked. Extract parameters of product specifications that are not in the list.

In step 203, a design rule generation order is determined for the parameters extracted in step 202. When a plurality of product specification parameters are extracted in step 202, it is necessary to determine the order in which design rules are generated from which parameters. This is because design rules are generated by selecting parent parameters so as not to include descendant parameters, so parameters that generate design rules in a later order than parameters that generate design rules in an earlier order, This is because the number of parent parameter candidates is reduced, and the resulting design rules are different. Therefore, in step 203, a plurality of design rule generation orders are determined, and different design rule proposal numbers are assigned to the respective design rule generation orders. An example of the design rule generation order data 107 shown in FIG. 7 will be described. In this example, when two parameters Q and R are extracted in step 202, a design rule generation order is generated in which Q is the first generation order and R is the second generation order. Option No. 1 is generated, and on the other hand, a design rule generation order in which R is the first generation order and Q is the second generation order is generated. 2 is given.

In step 204, a parameter that is a parent parameter candidate of the design rule to be generated is extracted. First, a certain design rule proposal is selected. In the case of the above example, for example, the design rule No. of the design rule generation order data 107 is displayed. 1 is selected. Next, a child parameter whose generation order is early from the design rule generation order data 107 is set as a design rule generation target parameter. In the above example, since the parameter Q is the first in the generation order, the parameter Q is set as a design rule generation target parameter.

From the selected design rule proposal data of the parameter parent-child relationship data 104, the data row A in which the design rule generation target parameter is the parent parameter is extracted. The child parameter of this data row A is excluded from the parent parameter candidates of the design rule to be generated. Furthermore, the data row B in which the parameter that is the child parameter is the parent parameter is further extracted, and the parameter that is the child parameter (the grandchild parameter for the parent parameter of the data row A) in the data row B is Exclude it from the parent parameter candidates of the design rule you are trying to generate.
Similarly, the procedure is repeated until all the descendant parameters are extracted.

By the above processing, the parameters excluded from the parent parameter candidates in the above processing are removed from all parameters (all of the category “request” and category “product”) in the parameter master data 105 regardless of the category. The parent parameter candidate of the design rule to be generated is extracted.

In step 205, the parent parameter is related to the child parameter, and a design rule is generated. Using the design performance data 106 as shown in FIG. 6, a multiple regression equation for estimating the child parameter is generated using the child parameter as an objective variable and the parent parameter as an explanatory variable. At this time, using the stepwise method, each parameter is added to or excluded from the explanatory variable from the parent parameter candidates, and a parent parameter with high estimation accuracy of the multiple regression equation is obtained. The multiple regression equation generated at this time is added to the parameter parent-child relationship data 104 as new data defining child parameters, parent parameters, and design rules.

Note that the design rule generation method is not limited to the method described above, and any method for associating child parameters with parent parameters may be used.

In step 206, it is determined whether the design rule for determining the specification is defined for all the product specification parameters of the selected design rule proposal. If there is a parameter for which the design rule is not defined, the process returns to step 204. Repeat the process.

In step 207, it is determined whether design rule generation has been completed for all design rule proposals generated in step 203. If there is a design rule proposal for which design rule generation has not been completed, the process advances to step 204. Return and repeat the process.

In step 208, for each design rule proposal, the design result when the design rule is applied is calculated and evaluated using the design result data 106. First, all data having the same design rule proposal No. is extracted from the parameter parent-child relationship data 104, and each design rule is acquired from the extracted data. Next, one design record data is extracted from the design record data 106. From the extracted design performance data, parameter values classified as required specifications by the parameter master data 105 are acquired. A design rule operation in which all parent parameter values are determined from the extracted design rules is executed, and child parameter values of the design rules are determined. If there is a design rule in which all parent parameter values are determined by calculation of another design rule, the calculation of the design rule is executed. In this way, this procedure is repeated until the values of all parameters are confirmed. FIG. 10 shows an example in which a plurality of design rules are generated.

Next, the parameter values classified as product specifications by the parameter master data 105 are acquired from the design result data extracted from the design result data 106. Here, for all parameters classified as product specifications, evaluation values are calculated by comparing values determined by the design rules with values of design results. As an example of the evaluation value, an error is calculated in this embodiment. The absolute value of the difference between the value determined by the design rule and the value of the design performance is divided by the value of the design performance, and the percentage is calculated as a percentage. The evaluation value calculated here is stored in the evaluation result data 108 illustrated in FIG. 8 for each design rule proposal, design result, and parameter.

Note that the method of calculating the evaluation index and the evaluation value is not limited to the above-described index and method, and any index or method for evaluating the difference may be used.

In step 209, the input / output unit 101 displays the generated design rule proposal and the evaluation result.
[Design Rule Confirmation / Registration Screen]
FIG. 3 shows an example of a screen of design rules and evaluation results displayed on the input / output unit 101. 301, an area for displaying a list of design rule proposals, an area for displaying a parent-child relationship of design rules for a design rule proposal selected from 301, and a design performance as shown in 304. There is an area for displaying an evaluation value using, and the design rule for determining the parameter is displayed as shown in 303 by placing the cursor on the parameter.

The user refers to the evaluation result of the design rule proposal, selects the design rule proposal that seems to be applied, and presses the design rule registration button. As a result, the registered design rule is transmitted to the product specification design apparatus.

101: Input / output unit,
102: storage unit,
103: arithmetic unit,
104: Parameter parent-child relationship data,
105: Parameter master data,
106: design result data,
107: design rule generation order data,
108: Evaluation result data,
109: Design rule generation processing unit,

Claims

A design rule generation device that generates a design rule by defining a relationship between a parent parameter candidate and a child parameter by using a parent parameter as an input and a child parameter as an output,
Parameter master data including required specifications and product specifications, design results data, storage unit for storing design data,
A first function for extracting child parameters of a design rule to be generated from the parameter master data;
A second function of excluding child parameters of the design rule to be generated and descendant parameters for the child parameters from all parameters of the parameter master data, and setting as a parent parameter candidate of the design rule to be generated;
A design rule generating apparatus characterized by having a third function of generating a design rule by associating a parent parameter candidate with the child parameter based on the design result data.
In claim 1,
A design rule generation apparatus for generating a design rule for a plurality of product specifications by repeatedly using the second function and the third function.
In claim 1,
The third function is a design rule generation device characterized in that the relationship between the parent parameter candidate and the child parameter is performed by regression analysis of the parent parameter candidate and the child parameter based on the design result data.
In claim 3,
The third function is a design rule generation apparatus characterized in that a design rule calculated using the design result data is evaluated.
In claim 1,
A design rule generation apparatus having a fourth function of generating a plurality of order plans for generating the design rule and generating a design rule for each generation order plan.
In claim 5,
A design rule generation apparatus having a fifth function of displaying each design rule generated for each design rule generation order plan and an evaluation result.