JPH0830670A - Predictive analyzing device for design defect - Google Patents

Abstract

PURPOSE:To reduce design defects as much as possible and enable efficient designing. CONSTITUTION:When an alteration in some position caused, instances of past defects similar to the alteration position are retrieved by a data analytic station 1 and displayed through a display device 3, so when design is altered, the designer refers to the displayed similar defect instances to prevent design defects accompanying the alteration, thereby reducing defects. As compared with conventional technology, the designer can easily and speedily judge whether or not the contents of the alteration are correct and perform efficient designing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention predicts a defective symptom that may occur due to a change by designating a product by inputting necessary data to a changed part of the product, According to the design failure predictive analysis device that prevents the occurrence of design failure in advance by pointing out
In particular, the present invention relates to a product which has a large number of constituent parts and which is suitable for use in an electric product equipped with parts relating to various fields such as electric, mechanical and chemical.

[0002]

2. Description of the Related Art Conventionally, electricity, machinery, such as an air conditioner,
An electrical product composed of parts for various fields such as chemistry requires a development and design period of several months. When designing, various changes occur, but even if the changes are made, the specifications are out of order, design failures occur, and communication with other designers does not work. , Defects due to changes may occur.

For example, at the design stage of an air conditioner, it is divided into several phases such as basic study, performance study, mass productivity study, etc. At the time of performance study, the shape and material of a certain component is changed. In some cases, this may cause a defect, and it takes time to pursue the cause of the defect and take countermeasures. Moreover, the fact is that the defect often occurred in the past due to the same cause.

[0004]

In the prior art, various design changes may occur. However, when a design change is made, there is a possibility that a defect may occur with the design change as described above. When countermeasures were taken, similar cases often occurred before, so even if you make changes during development and design, it takes a considerable amount of time to confirm whether the changes are correct or not. Therefore, there is a problem in that the time is wasted and the design is delayed.

On the other hand, the technique disclosed in Japanese Patent Laid-Open No. 4-336382 proposes a system for automatically managing the history of design changes using a computer. However, although the technology disclosed in the publication can manage the history of changes, it does not have a function of displaying similar defective cases or the like that are likely to occur due to changes.

In view of the above-mentioned problems of the prior art, an object of the present invention is to easily input a similar defective case which is predicted to occur due to the change by inputting necessary data to a portion where the design is changed. An object of the present invention is to provide a design failure predictive predictive analysis device that can be confirmed, and thereby reduce design failures as much as possible and enable efficient design.

[0007]

According to a first aspect of the present invention, a part to be changed and a defect phenomenon related to the change of the changed part and which has occurred in the past are stored, and a product type name, Input the necessary data for the changed parts for each product type, and the database that stores the parts configuration that is classified by module corresponding to each product type name, the names of used parts that are used corresponding to each component configuration At the time when the data inputting means and the changed part k data are input, the presence or absence of a similar defective case that occurred in the past is searched based on the input data and the database, and when a similar defective case exists, It has a data analysis means for displaying each of the similar defective cases by a display means.

In the second aspect of the present invention, a plurality of CADs, the above-mentioned database, and a plurality of CADs are network-connected to each other, and data required for a changed portion of each product type is input through CAD input means. At the point of time, based on the input data and the database, a similar failure case that occurred in the past is searched, and a data analysis unit that displays the searched various similar failure cases by a display unit of CAD, Further, the data analysis means is characterized in that the data of the changed portion inputted by one of the CADs is transferred to another CAD.

[0009]

According to the first aspect of the present invention, as described above, the portion to be changed and the defective phenomenon related to the change of the changed portion and which has occurred in the past are stored, and the type name of the equipment and each type A data structure that stores the parts structure classified by module according to the name, the database that stores the names of used parts that are used in correspondence with the respective parts structure, and the data that is necessary for the changed parts for each product type. When the input means and the changed part k data are input, the presence / absence of a similar defective case that has occurred in the past is searched based on the input data and the above-mentioned database. Since the data analysis means for displaying each of the defective cases by the display means is provided, when the changed portion occurs, the past defective cases similar to the changed portion are searched by the data analyzing means. Since it is displayed via the display means, when the design is changed, the designer can refer to the displayed similar failure case to prevent the design failure due to the change in advance, and reduce the failure. You can Therefore, as compared with the conventional technology, the designer can easily and quickly determine whether or not the contents to be changed are correct, and can greatly reduce the time and effort required for a defective design. Design can be done.

Further, in the second aspect of the present invention, a plurality of CADs, the above-mentioned database, and a plurality of CADs are network-connected, and the data necessary for the changed portion of each product type is input via the CAD input means. And a data analysis unit that searches for similar defective cases that have occurred in the past based on the input data and the database at the time of input, and displays the searched various similar defective cases on the display unit of CAD. And since the data analysis means is configured to transfer the data of the changed portion inputted in one of the CADs to the other CAD, the same effect as the first invention can be obtained. Since it is not necessary to go to the place where there is a data analysis means and other designers can easily know the changed part, it is possible to further improve the design work. It is effective to obtain achieving reduction.

[0011]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 7 show a first embodiment of the design failure advance prediction / analysis apparatus according to the present invention. As shown in FIG. 1, the design failure pre-prediction / analysis apparatus A of the embodiment, when necessary data is selected and input to the design change portion by the data input apparatus 2, as shown in FIG.
Is configured to search for similar defective cases based on the input data and various databases stored in advance, and display the searched similar defective cases on the display device 3. More specifically, the various databases include a standard database 4, a design defect database 5 and a parts database 6, as shown in FIG. Of which
The standard database 4 stores respective standards for the air conditioner to be designed, and as shown in FIG.
Large category 41 and medium category 4 associated with each item
It is classified as 2. As the large classification 41, JIS standard 411, factory design standard 412, factory inspection standard 413,
It consists of product-specific standards 414, various management standards 415, etc., and is a factory design standard 41 within the range of JIS standard 411.
2 is a factory inspection standard 413 within the range of the standard 412.
Within the range of the standard 413, the product-specific standard 414
They are provided in the order called. As the middle classification 42,
It consists of items such as electricity 421, machine 422, chemistry 423, etc., and corresponds to each standard 411 to 415 etc. in the major classification, and is configured by associating each item of the intermediate classification 42.

The design database 5 is roughly classified into FIG.
As shown in Fig. 5, the failure phenomenon 5 in which various failure phenomena that may occur at the design stage of the air conditioner are individually named and stored
1 and a changed part 52 in which various lists of parts according to the circuit diagram of the air conditioner are stored.
The defective phenomenon 51 includes a water drop 511, a mist blow 512, a dew 513, and the like, and the changed portion 52 includes an evaporator 521, a drain 522, a refrigerant pipe 523, and the like.
Each item of the defective phenomenon 51 and each item of the changed portion 52 are document-related and tabulated. For example, as a defect phenomenon, "fog blow" 5
When the “evaporator 522” is selected as the changed portion 52, as shown in the lower part of FIG.
As a document title related to them, "Evaporation diameter is 4 m
It is associated in a document such as “mist blowing occurs according to the reduced change content”. As shown in FIG. 4, the parts table base 6 is made up of tables of product names 61, respective parts configurations 62 corresponding thereto, and used part names 63 used in the respective parts configurations 62. Although not shown in detail in the product name 61, the model name and model are stored in addition to the product name of the air conditioner (product name). The component configuration 62 stores a component configuration in module units called a block diagram for each product type. In the used part name 63, the names of all actually used parts are stored, and the part model number 64 corresponding to the name is also stored. In the parts table base 6, when any one of the product names 61 is selected, the table of the product name 61 and the parts configuration 62 are associated with each other,
When any one of the module-based component configurations is selected, the component configuration 62, the used component name 63, and the component model number 64 are selected.
And are associated.

On the other hand, the data analysis station 1 is
As shown in FIG. 5, when necessary data is input to the product name and the changed portion by the data input device 2 (step 10
1, 102), referring to the data required for analysis from each of the databases 4 to 6 based on the data, and searching for a similar design defect related to the data required for analysis in the past. It is checked whether or not there is a similar defective case (step 103). As a result, if there is a similar defective case, the fact is displayed on the display device 3 and the standard related thereto is also displayed. (Step 104). Therefore, the data analysis station 1 is configured to start and display a search according to a predetermined algorithm when necessary data is input to the changed portion. The data input device 2 is a mouse 7,
It consists of a keyboard (not shown). The display device 3 is composed of a CRT or the like, and can display the analysis result by the data analysis station 1, and when input by the data input device 2, can display the input data for confirmation. In FIG. 5, step 5
As a result of 3, if there is no similar defective case, that fact is displayed (step 105).

The design failure pre-prediction / analysis apparatus of the embodiment has the configuration as described above, and therefore, for example, it will be confirmed whether or not a design change occurs and there is a similar failure case predicted for the changed portion. If so, first, the designer
When the product type name to be changed and the changed portion are input on the screen 31 of the display device 3 as shown in FIG. 6 by the data input device 2, the data analysis station 1
Based on the input data, the data necessary for analysis is referred to from the standard database 4, the design defect database 5, and the parts database 6 to search whether or not there was a similar design defect in the past.

As a result, if there is a similar design failure,
The data analysis station 1 displays a similar case 32 regarding the changed portion on the screen 31 of the display device 3 as shown in FIG.
Is displayed. In that case, various cases are displayed as the similar case 32 of the defective design related to the "makeup frame" as shown in FIG. Then, the designer selects, for example, the case “deformation cover deformation” from the column of the similar case 32 in the data input device 2
, The data analysis station 1 retrieves the document format contents 72 based on the selected case from the design defect database 5 and switches the screen of the display device 3 to display a similar case display screen 71 shown in FIG. indicate. In this case, the content 72 includes an outline, a situation, a cause, a countermeasure, and the like. As a result, the designer can understand that when the design of the "decorative frame" is changed, he / she should be careful of the conventional leak, and it is possible to prevent the design failure from occurring in advance. If there is no similar defective case as a result of the search by the data analysis station 1, the fact is displayed.

In this way, when the changed portion occurs, the past cases of defects similar to the changed portion are searched by the data analysis station 1 and displayed through the display device 3. Therefore, when the design is changed, By referring to the displayed similar failure cases, the designer can prevent the design failure associated with the change in advance and reduce the failure. Therefore, as compared with the conventional technology, the designer can easily and quickly determine whether or not the contents to be changed are correct, and can greatly reduce the time and effort required for a defective design. Design can be done. Moreover, since the standard 33 is displayed together with the similar failure case 32, the designer can reconfirm the standard of the target portion, and the design work can be more efficient. Further, even if the designer pays sufficient attention to the design and changes, the result of the test may not pass the standard of the inspection part, or some defect phenomenon may occur. When a defect occurs, when the defect phenomenon is selected from the similar defect cases 32, the content 72 of the selected defect phenomenon is displayed in the document format as described above, and the cause and countermeasure are also displayed. Therefore, the designer can see the similar failure phenomenon,
The cause of the defect this time can be pursued, and the time to analyze the defect situation can be greatly shortened. In the data displayed in this way, past cases can be retrieved from the design failure data 5 in the same manner by inputting the defective portion from the design failure database table.

FIG. 8 shows a second embodiment of the design failure preliminary prediction / analysis apparatus. Nowadays, in designing circuit diagrams and the like, a computer-aided design support device (Computer
Aided Design: hereinafter referred to as CAD) is widely used. By incorporating such a CAD and the present apparatus A and selecting a part of the circuit diagram on the CAD drawing, a list of past cases, standards, etc. related to the circuit part is displayed. .

When handling this, for example, FIG.
As shown in (a), when a circuit component to be changed is selected from the CAD drawing 81 with a mouse or the like, the data analysis station searches the component database 6 and the attribute such as the model number of the selected circuit component is displayed on the CAD screen. It is displayed on the screen 82 as shown in FIG. At this time, although the product type name is not displayed on the screen 82 in FIG. 8B, the product type name is CA as attribute information of the CAD currently being worked on.
It is automatically sent from D to the data analysis station 1.
After that, when the change item as the change portion is input, the data analysis station 1 searches the design defect database 5 for a similar past defective case based on the data of the product type, the part number, and the changed item, and the similar defective case in the past. If there is, it is displayed to that effect. At this time, when any of the similar defective cases is selected, the similar case is displayed in the document format as in the case described above with reference to FIG. for that reason,
In this embodiment, the CAD and the device A are connected to each other so that data can be exchanged. The data input device 2 and the display device 3 of the present device A may also be used as the input unit and the display unit of the CAD, or may be separately configured. However, in the case of being combined, the search result information will be displayed as an interrupt process on the CAD display unit. in this way,
When this device and CAD are combined so that even when a component, wiring layout, etc. are changed on the CAD, it is possible to display similar defective cases that are predicted to occur due to the change, the designer can refer to them. By doing so, it is possible to prevent the occurrence of defects due to the change of parts in advance.

9 to 11 show another embodiment of the present apparatus. In this case, in addition to the data analysis station 1 performing the above-described analysis, the data analysis station 1 has a function of totaling the number of searches for each component configuration. That is, in the embodiment shown in FIG. 9, the data analysis station 1 aggregates the changed parts, failure phenomena, and similar failure cases retrieved during design change or failure analysis in units of a preset arbitrary period. Then
The totaled data is rearranged in the descending order of retrieved items, and the result is displayed on the statistical screen 91 shown in FIG. By displaying the statistic screen 91 in this way, the designer can know the defective phenomena and parts that have been frequently searched recently, so that the change history of each designed part can be understood at a glance and the corresponding changes can be made. By making the change, it is possible to reduce the occurrence of design failure due to communication leakage between the respective parts. In this example, the data retrieved in the past one month is shown, but in the embodiment shown in FIG. 10, the number of times of retrieval within a certain period is set in advance, and the set number of times is set as the retrieval alarm line 92. The data analysis station 1 displays the line 91 on the statistical screen 91. Therefore, when a changed part, a defective phenomenon, and a similar defective case are searched, the search alarm line 9
Since it can be seen that the frequency of retrieval of items exceeding 2 is high, the designer can reduce design defects by sufficiently reviewing.

FIG. 11 shows still another embodiment of the present invention. In designing, a plurality of designers decide their respective departments in charge and share them, and in some cases, several to several tens of CADs are used in one department. In such a case, if each designer occupies one CAD and performs the design work, the information about the changed part cannot be known to other designers. Therefore, when the respective parts are integrated, the pipe diameter may be different, or the capacitor capacity may be different, resulting in defective design due to casting, and the design may be reviewed again. Therefore, in this embodiment, as shown in FIG. 11, each of the CADs 11A to 11N is network-connected to the apparatus A. And either one of the CAD 11A
When the design change is made by the user, the result is immediately taken into the device A, and the effect is sent from the device A to another CAD 11B.
11N is transferred via the network B. in this case,
The data input device 2 and the display device 3 in the device A are C
It is also used as an input unit and a display unit of AD11A to 11N. And the designer who is designing with any CAD
You can check the design change items that you are designing with another CAD, and if the change is related to your design work, you can use the results, or you can directly ask the designer who made the change. By immediately feeding back the change results of other design parts and designing, it is possible to reliably prevent a design failure that occurs without knowing other design changes. Therefore, according to this embodiment, each designer does not have to go to the place where the apparatus A is located, and other designers can easily know the changed part.

In the above embodiment, an example in which the type name, the parts configuration, the names of parts used, etc. are input as they are as the input of the data required for the changed portion has been shown. In the case of inputting each kind name 61, part configuration 62, and used part name 63 as shown in FIG. 4 as well as the defective phenomenon 51 and changed portion 52 as shown in FIG. If the designer refers to the code from the list and inputs it, even if the model has a large number of component components, it can be easily handled. Therefore, the designer can enter the product name stored in the device. ， Even if you do not remember the failure phenomenon name, part name, etc. correctly, you can easily input by referring to the list.

[0022]

As described above, according to the first aspect of the present invention, the part to be changed and the defect phenomenon related to the change of the changed part and which has occurred in the past are stored, and the type name of the equipment is stored. , A component structure classified in module units corresponding to each kind name, a database storing names of used parts used corresponding to each part structure, and data necessary for a changed part for each kind Data input means for inputting
Data analysis means, the data analysis means, when the data required for the changed portion is input, based on the input data and the database, search for the presence or absence of similar defective cases that occurred in the past, When there are similar bad cases,
Since each of the similar failure cases is configured to be displayed by the display means, it is possible to prevent the design failure associated with the change in advance by referring to the displayed similar failure cases when the design is changed. Therefore, there is an effect that defects can be reduced and efficient design is possible. Moreover, according to claim 2, the data analysis means displays the retrieved similar failure cases respectively, and at the time of selecting each of the displayed similar failure cases, displays the cause and the countermeasure of the similar failure cases. Since it is configured as described above, there is an effect that it becomes easier and quicker for the designer to take countermeasures.
According to claim 3, the number of times that the data analysis unit searches for similar defective cases is totaled within a specific period, the totaled results are displayed in descending order of frequency of search, and an alarm line is set for a specific number of inspections. Since it was configured to display,
In addition to the effect of claim 1, there is an effect that it is possible to call attention to a designer who receives a department with a particularly high search frequency and further reduce the occurrence of defective design.

According to the fourth aspect, the database, the data input means, and the CAD are connected to each other so as to be capable of exchanging data with each other, and the necessary data of the changed portion for each product type can be obtained by the input means or the CAD input means. At the time of inputting via the or, the presence or absence of similar defective cases that occurred in the past is searched based on the input data and the database, and when similar defective cases exist, each of the similar defective cases is CAD. And a data analysis unit for displaying the attribute data of the circuit component by the database via the CAD when the circuit component displayed on the screen of the CAD is selected. Since it is configured to input, the designer can easily find similar defective cases while performing design work on the screen of CAD, and rationalize the design work. There can be effectively. According to claim 5, a plurality of CADs, a database, and a plurality of Cs
At the time when data necessary for the changed part for each product type is inputted through the CAD input means by network connection with AD, a similar defective case that occurred in the past is searched based on the input data and the database. A data analysis unit for displaying the retrieved various similar failure cases on a CAD display unit, and the data analysis unit transfers the data of the changed portion input by one of the CADs to another CAD. Since it is configured so as to obtain the same effect as in claim 1, it is not necessary to go to the place where the data analyzing means is provided, and other designers can easily know the changed portion. As a result, there is an effect that further rationalization in design work can be achieved.

[Brief description of drawings]

FIG. 1 shows a first design failure predictive analysis device according to the present invention.
FIG. 3 is a configuration block diagram showing an embodiment of FIG.

FIG. 2 is an explanatory diagram showing a table stored in a standard database.

FIG. 3 is an explanatory diagram showing a table stored in a design defect database.

FIG. 4 is an explanatory diagram showing table information stored in a parts database.

FIG. 5 is a flow chart showing the processing operation of the design failure predictive analysis device.

FIG. 6 is an explanatory diagram showing a displayed standard display screen.

FIG. 7 is an explanatory diagram showing a selected similar case display screen.

FIG. 8 is an explanatory view showing another embodiment of the design failure advance prediction / analysis apparatus according to the present invention.

FIG. 9 is an explanatory diagram showing a display screen in which the number of searches is totaled.

FIG. 10 is an explanatory diagram showing a state in which an alarm line is provided on the display screen that counts the number of searches.

FIG. 11 is an explanatory view showing still another embodiment of the design failure predictive analysis device according to the present invention.

[Explanation of symbols]

A ... Design failure advance prediction analysis device, 1 ... Data analysis station, 2 ... Data input device, 3 ... Display device, 4 ... Standard database, 5 ... Design failure database, 6 ... Parts database.

Claims (6)

[Claims] 1. A part to be changed and a defect phenomenon related to the change of the changed part and which has occurred in the past are stored, and
A database that stores the product type name of the device, the component configuration classified in module units corresponding to each type configuration, the name of the used component used corresponding to each component configuration, and the changed part for each type At the time when the data input means for inputting the necessary data and the data of the changed portion are input, the presence or absence of a similar defective case that occurred in the past is searched based on the input data and the above-mentioned database, and a similar defective A design failure pre-prediction / analysis apparatus comprising: a data analysis unit for displaying each of the similar failure cases by a display unit when a case exists. 2. A part to be changed and a defect phenomenon related to the change of the changed part and occurring in the past are stored, and
A database that stores the product type name of the device, the component configuration classified in module units corresponding to each type configuration, the name of the used component used corresponding to each component configuration, and the changed part for each type At the time when the data input means for inputting the required data and the necessary data for the changed portion are input, the presence or absence of similar defective cases that occurred in the past is searched based on the input data and the database, When a defective case exists, each of the similar defective cases is displayed by the display means, and at the time of selecting each of the displayed similar defective cases, the origin of the similar defective case and the countermeasure are displayed by the display means. An apparatus for predicting and designing a design failure, comprising: 3. A part to be changed and a defect phenomenon related to the change of the changed part and occurring in the past are stored, and
A database that stores the product type name of the device, the component configuration classified in module units corresponding to each type configuration, the name of the used component used corresponding to each component configuration, and the changed part for each type At the time when the data input means for inputting the necessary data and the data of the changed portion are input, the presence or absence of a similar defective case that occurred in the past is searched based on the input data and the above-mentioned database, and a similar defective When a case exists, the data analysis means for displaying each of the similar defective cases by the display means, and the data analyzing means totals the number of times of searching the similar defective cases within a specific period, and the totaling is performed. A design failure pre-prediction / analysis apparatus characterized in that the results are displayed by a display means in descending order of frequency of search, and an alarm line is defined and displayed at a specific search frequency. 4. A part to be changed and a defect phenomenon related to the change of the changed part and occurring in the past are stored, and
A database that stores the product type name of the device, the component configuration classified in module units corresponding to each type configuration, the name of the used component used corresponding to each component configuration, and the changed part for each type Data input means for inputting necessary data to the CAD and the CAD are connected to each other so as to be capable of exchanging data.
At the time of input through any of the input means of the above, based on the input data and the database, the presence or absence of a similar defective case that occurred in the past is searched, and when a similar defective case exists, the similar defective case is detected. Data analysis means for displaying each of the defective cases by the display means of the CAD, and the data analysis means, when the circuit component displayed on the screen of the CAD is selected, by the database via the CAD, An apparatus for predicting and predicting design failure, which inputs attribute data of circuit parts. 5. A plurality of CADs, a part to be changed, and a defect phenomenon related to the change of the changed part and which has occurred in the past are stored, and the type name of the equipment and the type name of each device are associated with each other. A database storing parts configurations classified by module, names of used parts used corresponding to the respective parts configurations, and data connected to a plurality of CADs through a network, and data necessary for changing parts for each product type When is input via the CAD input means, similar defective cases that have occurred in the past are searched based on the input data and the database, and the searched various similar defective cases are displayed by the CAD display means. And a data analysis unit, wherein the data analysis unit transfers the data of the changed portion input by any one of the CADs to another CAD. Place. 6. The data analysis unit totals the number of times of searching for similar defective cases within a specific period, displays the totaled results in descending order of frequency of search, and sets and displays an alarm line for the specific number of searches. The design failure pre-prediction / analysis apparatus according to claim 5, wherein