JPH08123786A - Normal distribution map generator - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a normal distribution map creation device that can output normal distribution maps of multiple groups of data on the same screen or on the same paper, and improve the work efficiency of comparison / study. [Structure] The measurement data input from the input operation unit 2 such as a keyboard is stored in the auxiliary storage device 53 in the data management means 5 in association with the title (data name). When a title to be plotted and a plotting (graph) type are input, the normal distribution chart creating means 6 calculates the average value and standard deviation, plots a graph, and displays it on the screen of the display device 10. When a plurality of titles are specified, the normal distribution map creating means 6
Draws a graph so that multiple sex plots are displayed on the same screen. The normal distribution map creating means 6 synthesizes and arranges information such as titles and calculation results corresponding to the arrangement order of the normal distribution diagrams.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a normal distribution map preparation apparatus capable of managing a plurality of groups of data and simultaneously displaying a normal distribution map of a plurality of groups of data.

[0002]

2. Description of the Related Art A quality control method using a normal distribution map is known. By inputting the measured data of the items to be managed, the average value XBAR and the standard deviation σ are calculated, a normal distribution map is drawn based on the calculation results, and the result is displayed on a display device such as a CRT display. A normal distribution map creating apparatus is used which is capable of printing out a normal distribution map drawn accordingly.

[0003]

The conventional normal distribution diagram preparation apparatus can perform arithmetic operations and plots by inputting a group of data, but cannot manage a plurality of groups of data. Therefore, for example, production lot, production date,
When comparing quality by week, month, etc., or by production line, by worker, etc.
The work of inputting a group of data and printing out a normal distribution map had to be repeated a plurality of times to compare a plurality of normal distribution maps, resulting in poor work efficiency. Therefore, by assigning a title to each of the data of multiple groups and recording the data of multiple groups, it is possible to display a normal distribution map of the data of multiple groups on the same screen or print out on the same paper. It was desired to improve the work efficiency of comparison and examination.

Further, since the conventional normal distribution map generating apparatus considers all data inputted from the keyboard etc. as valid input, for example, when character data other than numerical values are erroneously inputted, normal calculation and plotting are performed. There was a problem that I could not do. For this reason, in the input mode of the data to be managed, it is possible to prohibit the input of values other than numerical values, and to give a message to the input operator for the numerical value outside the preset range if necessary. ,
A device that can reduce erroneous input of data has been desired.

Further, it is desired that a series of data once input is displayed on the screen so that the data can be changed / corrected while checking the data, thereby facilitating correction work when data is erroneously input. Was there.

Further, even if there is no measurement data, there is a demand for an apparatus capable of creating a normal distribution map by inputting, for example, a target average value XBAR and a target standard deviation σ.

On the other hand, when displaying a plurality of normal distribution maps on the same screen or printing out a plurality of normal distribution maps on the same sheet, it is possible to determine which item each normal distribution map corresponds to. Need to When using a color display device or color printer, it is possible to distinguish by displaying the normal distribution map and its title, etc., respectively, but even when using a single color display device or printer, It is desirable to be able to identify which item each normal distribution map corresponds to.

The conventional normal distribution map preparation apparatus can prepare a normal distribution map in a specific type (for example, vertical display shown in FIG. 9). However, in order to compare the normal distribution maps of the data of a plurality of groups, it is desirable that the display of various types as shown in FIGS. 9 to 13 can be selectively used.

Further, the conventional normal distribution map preparing apparatus is configured to automatically set the scale when preparing the normal distribution map. However, when plotting a plurality of graphs arranged vertically or horizontally, the automatically set scale may differ for each data group (each graph), which is not preferable for comparative examination. Therefore, it is desired to be able to arbitrarily set the scale for drawing. Alternatively, there has been a demand for a normal distribution map creation apparatus capable of automatically setting the scales so that the scales of a plurality of graphs are the same.

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a normal distribution map preparation apparatus capable of outputting a normal distribution map of a plurality of groups of data on the same screen or the same paper. The purpose of 1. A second object is to provide a device for creating a normal distribution map capable of reducing erroneous data input. The third purpose is
Another object of the present invention is to provide an apparatus for creating a normal distribution map that can easily change / correct already input data. A fourth object of the present invention is to provide a normal distribution map creating apparatus capable of creating a normal distribution map by inputting a target average value and a target deviation without measurement data. A fifth purpose is to make it possible to identify the items of a plurality of normal distribution charts output on the same screen or on the same paper surface without using a color display or color printer. Providing a production device. A sixth object is to provide an apparatus for creating a normal distribution map capable of selecting the display type of the normal distribution map. A seventh object is to provide a device for creating a normal distribution map capable of manually setting the scale arbitrarily so that the scales of a plurality of normal distribution maps are the same, or automatically setting the scales to be the same. It is in.

[0011]

In order to solve the above problems, a normal distribution map creating apparatus according to claim 1 manages a plurality of groups of data and titles assigned to the data of each group in association with each other. Data management means, drawing object specifying means for specifying data of two or more groups as drawing objects, and mean value and standard deviation are respectively calculated based on the specified data of each group, and based on the calculation results. A normal distribution map creating means for arranging each normal distribution map and combining and arranging a plurality of drawn normal distribution maps so that they are displayed on the same screen or the same paper, and the normal distribution map created by this normal distribution map creating means And image output means for displaying or printing out the image.

The normal distribution map generating apparatus according to claim 2 judges whether or not the data inputted from the data inputting means such as a keyboard is numerical data, and accepts only the numerical data to prevent erroneous input. It is characterized by having.

A normal distribution diagram creating apparatus according to a third aspect of the present invention is a tolerance range setting means for setting a tolerance range of numerical input data, and if the input data exceeds the tolerance range, the input data It is characterized in that it is provided with an erroneous input preventing means for visually or audibly displaying a message prompting confirmation.

In the normal distribution map creating apparatus according to the fourth aspect, a series of data managed in association with the title is taken out and displayed on the screen of the image display apparatus, and is designated by the data input means. It is characterized by comprising a data correction means for changing the data.

A normal distribution map creating apparatus according to a fifth aspect of the present invention comprises target value setting means for setting a target average value and a target standard deviation, and the normal distribution map creating means is set by the target value setting means. It is characterized in that a normal distribution map is constructed based on the average value and the standard deviation.

According to a sixth aspect of the present invention, there is provided a normal distribution map creating apparatus, wherein when a plurality of normal distribution maps are created, the normal distribution map creating means is
It is characterized in that information such as character strings related to the respective titles is combined and arranged in correspondence with the arrangement order of each normal distribution map.

The normal distribution map creating apparatus according to the seventh aspect is characterized in that the normal distribution map creating unit is configured to draw a normal distribution map based on the drawing model specified by the drawing model selecting unit.

A normal distribution map preparation apparatus according to claim 8 comprises scale input means for inputting a scale for drawing a normal distribution map, and prepares a normal distribution map based on the scale designated by the scale input means. The means is characterized in that it is configured to draw a normal distribution map.

The normal distribution map creating means of the device for creating a normal distribution map according to claim 9 calculates the average value and the standard deviation based on the data of each designated group, and based on the respective calculation results. It is characterized in that a scale capable of plotting a normal distribution map is set and each normal distribution plot is constructed based on the set scale.

[0020]

Since the normal distribution map creating means in the normal distribution map creating apparatus according to claim 1 synthesizes and arranges a plurality of normal distribution maps so that they are displayed on the same screen or the same paper surface, the drawing target specifying means specifies A plurality of normal distribution maps can be displayed on the same screen as an image or printed out on the same paper. Therefore, a plurality of normal distribution maps are combined and output, which facilitates comparison and examination.

In the normal distribution map generating apparatus according to the second aspect, only the numerical data is accepted in the mode for inputting the measurement data and the like, so that the character data and the like are not erroneously input.

When the input data exceeds the preset allowable range, the normal distribution map creating apparatus according to the third aspect displays a message prompting confirmation of the input data in a visible or audible manner. Therefore, it is possible to prevent erroneous input of data that greatly deviates from the standard range.

A normal distribution map generating apparatus according to a fourth aspect can retrieve a series of data input in association with a title, display the data on a screen of an image display device, and change the displayed data. it can. Therefore, erroneous input data can be changed in a short time.

A normal distribution map preparing apparatus according to a fifth aspect comprises target value setting means for setting a target average value and a target standard deviation, and the normal distribution map preparing means is set by the target value setting means. A normal distribution map is drawn based on the average value and standard deviation. Therefore, even if there is no measurement data, the target normal distribution map can be plotted.

In the normal distribution map creating apparatus according to the sixth aspect, the normal distribution map creating means when drawing a plurality of normal distribution maps,
Information such as a character string related to each title is combined and arranged in correspondence with the arrangement order of each normal distribution map. Therefore, it is possible to discriminate what item each normal distribution map indicates without distinguishing a plurality of normal distribution maps by color or making different line types to be drawn.

According to the seventh aspect of the normal distribution chart creating apparatus, the normal distribution chart creating means draws a normal distribution chart based on the plotting type designated by the plotting type selecting means. Therefore, a desired display type can be selected and designated according to the item to be evaluated, and a normal distribution map can be plotted in the designated display type.

In the normal distribution map creating apparatus according to the eighth aspect, the normal distribution map creating unit draws a normal distribution map based on the scale designated by the scale input unit. Therefore, it is possible to draw a normal distribution map of a desired scale.

The normal distribution map creating means of the normal distribution map creating apparatus according to claim 9 calculates the average value and the standard deviation on the basis of the data of each designated group, and calculates each on the basis of each calculation result. Since a scale capable of drawing a normal distribution map is set and each normal distribution map is drawn based on the set scale, a plurality of normal distribution maps have the same scale. Therefore, comparative evaluation is easy.

[0029]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a functional block configuration diagram of a normal distribution map creating apparatus according to the present invention. A normal distribution map creation apparatus 1 according to the present invention includes an input operation unit 2, an overall control unit 3, an erroneous input prevention unit 4, a data management unit 5, a normal distribution map creation unit 6, and a printer I / F ( Interface) section 7,
The display device controller 8 includes a printer 9, and a display device 10. The printer 9 and the display device 10 constitute an image output unit described in the claims.

When the normal distribution chart creating apparatus 1 is constructed by using a personal computer system, the input operation section 2 is constructed by using a keyboard, and the overall control is carried out by using a CPU, an operation control program prepared in advance, a RAM and the like. Part 3,
An erroneous input prevention unit 4, a data management unit 5, and a normal distribution map creation unit 6 are configured. When a CRT monitor display is used as the display device 10, the display device control unit 8 has a video RAM.
And a CRT control circuit equipped with a character generator and the like.

The input operation section 2 uses a keyboard and, according to various input modes displayed on the screen of the display device 10, a mode setting means 21, a title input means 22, a data input means 23, an allowable range setting means. 24, target value setting means 25, drawing target specifying means 26, drawing type selecting means 2
7. The scale input means 28 is configured.

FIG. 2 is an explanatory diagram showing a display example of the initial menu, FIG. 3 is an explanatory diagram showing a specific example of the title input screen,
FIG. 4 is an explanatory diagram showing a specific example of the data input screen.
The overall control unit 3 displays the initial menu shown in FIG. 2 on the screen of the display device 10 in order to prompt the user to select the processing mode. When the data input is selected by the mode setting means 21,
The overall control unit 3 causes the display device 10 to display the title input screen shown in FIG.

Overall control section 3 in title input mode
Supplies the data input from the title input means 22 to the data management means 5. The title (data name) for identifying a series of data by the title input means 22, date, department in charge, creator, standard value (standard center value)
And the range thereof and the allowable range of the input numerical data are input, the data management control means 51 sends each data to RA.
The title / data etc. configured by using M etc. is stored in the temporary storage means 52. Title (data name), standard value (standard center value) and its range are required input items,
If these required items are not entered, the data entry process cannot be started. The title / data etc. temporary storage means 52 may be configured using a hard (fixed) disk device or the like.

When the title input is completed, the overall control unit 3
Causes the data input screen shown in FIG. 4 to be displayed. Although FIG. 4 shows an example in which a maximum of 100 data can be input on one screen, a message prompting the user to input the number of data is displayed prior to the input of data, and the data input frame is displayed for the specified number of data. You may do it. The data input screen shown in FIG. 4 has a page structure, and pages can be moved by key operation. Also, in the data input screen, the title (file name) etc. is displayed at the top of the screen to clarify which data is being input, and by displaying the number of samples, it is possible to determine whether the data spans multiple pages. I am able to do it. The explanation of the operation method is displayed at the bottom of the screen.

In this data input mode, the general control section 3 activates the erroneous input prevention means 4. The data format determination means 41 in the erroneous input prevention means 4 monitors whether or not the data input from the data input means 23 is numerical data, and does not accept any input other than numerical data. When non-numeric data such as character data is input, a buzzer (not shown) is sounded, or, for example ,? Is displayed in the input data display area of the data input screen. Characters such as “” may be displayed to alert the data input person.

When the permissible range of the numerical data input by the permissible range setting means 24 is set and the set permissible range is stored in the title / data etc. temporary storage means 52, the numerical value in the erroneous input prevention means 4 is set. Range determining means 42
Checks whether the numerical data input by the data input means 23 is within the allowable range, and displays a message for prompting confirmation of the input numerical data on the screen when the numerical data is outside the allowable range.

For example, when the permissible range is set to 4 to 8, but when a numerical value of 9 is input, the data input person can be instructed by reversing or blinking the display of 9 on the screen. In addition to calling attention, a message such as "Exceeding the set allowable range. Please check the input data. If the data is correct, press the confirmation key." Is displayed on the screen. . And
Even if the data exceeds the permissible range by key input operation for confirmation, the data is validated, and when new data is input, the new data is validated.

As described above, the input of non-numeric data is prohibited, and when the allowable range is set, the erroneous input preventing means 4 is required to request reconfirmation of the numerical value for data input outside the range. Therefore, it is possible to prevent erroneous input in the data input processing mode in which a large number of numerical data are continuously input.

The data management means 5 includes a data management control means 51, a title / data etc. temporary storage means 52 composed of a RAM, an auxiliary storage means 53, and a data communication means 5.
4 is provided. The data management control means 51 associates various data such as a title and reference value (standard center value) input on the title input screen shown in FIG. 2 with these items and temporarily stores the title / data etc. In addition to storing the numerical data input in the data input screen shown in FIG.

Then, when a command indicating that a series of data has been input is input from the input operation unit 2, the data stored in the temporary storage means 52 such as title data is associated with the title. Writing to the recording medium mounted in the auxiliary storage device 53. For example, when a floppy disk drive device is used as the auxiliary storage device 53, the data management control means 51 writes data of various items such as reference values and numerical data such as measurement data to the floppy disk using the title as a file name. As described above, the data management unit 5 manages the measurement data in association with the title, and thus can manage a plurality of data groups measured in time series, for example.

Note that the data may not be written to the auxiliary storage device 53 at the time when a series of data is input, but may be sequentially written to the auxiliary storage device 53 each time data is input. Further, the auxiliary storage device 53 may be configured by a hard (fixed) disk device or the like. Also, RS
The measurement data supplied from an external automatic measuring device (not shown) via the data communication means 54 such as -232C may be fetched and the fetched data may be written to the floppy disk or the like.

When the data correction process is selected in the initial menu, the overall control section 3 displays a screen prompting the input of a title. When the title is entered, the data management means 5
The data correction means 55 in 1 reads the data of the designated title from the auxiliary storage device 53 and displays it on the display device 10. Then, for example, when correction input is made to data designated by moving the cursor or the like, the corresponding data is rewritten.

When the data deletion process is selected in the initial menu, the overall control section 3 displays a screen prompting the user to input the title of the data to be deleted. When the title is entered,
The data management means 51 deletes the data of the corresponding title.

When the data printing process is selected in the initial menu, the overall control section 3 displays a screen prompting for the title input. When the title is entered, the data management means 5
1 reads out data of a designated title from the auxiliary storage device 53, generates print data based on a preset print format, and prints the print data to the printer 9 via the overall control unit 3 and the printer I / F unit 7. To supply. As a result, various items such as titles and reference values, and measurement data are printed out.

When prompting the input of a title, the title stored in the auxiliary storage device 53 is read out,
Display the read titles on the screen in the form of a list,
The title to be processed may be designated by moving the cursor or the like. With such a configuration, even if you do not know the exact title (data name)
The title can be specified.

When drawing is selected in the initial menu, the overall control unit 3 displays the drawing submenu shown in FIG.
To be displayed on the screen. When the drawing from the stored data is selected, the overall control unit 3 displays the graph type selection menu shown in FIG. 6 on the screen of the display device 10 to select the graph type. When the type of the graph is designated, the information about the title and the like stored in the auxiliary storage device 53 is read out via the data management control means 51, and the drawing data selection screen shown in FIG. 7 is displayed on the screen of the display device 10. Display it. In the drawing data selection screen, the date and creator are displayed in addition to the title (data name) to facilitate the selection of drawing objects.

When the title (data name) to be plotted is selected, the overall control section 3 reads the data of the selected title from the auxiliary storage device 53 via the data management control means 51 and normalizes the read data. It is supplied to the drawing creating means 6.

The normal distribution chart creating means 6 is a mean value / deviation computing means 61, a computation result storing means 62, a scale setting means 63, a graph creating means 64, a title position designating means 65, and a plotting result storing means 66. With.

The average value / deviation calculating means 61 calculates the average value and the deviation based on the data supplied via the overall control section 3, and associates the calculated results with the titles to obtain the calculation result storing means 62. Memorize to. When a plurality of titles (data names) are selected and designated, the data of all the titles (data names) selected and designated are supplied to the normal distribution chart creating means 6, and each of the normal distribution chart creating means 6 side. The average value and the deviation may be calculated for each title, but the data for one title (data name) is supplied, and after the calculation of the average value and the deviation is completed, the data for the next title is supplied. Thus, the storage capacity of a temporary storage means such as a RAM for temporarily storing numerical data may be reduced.

The average value / deviation calculating means 61 detects the minimum value and the maximum value, calculates the process capability index CP, and calculates the estimated defective rate based on the reference value (standard center value) and the data related to the range. The calculation is performed, and these are associated with the title and stored in the calculation result storage means 62.

The scale setting means 63, based on the calculation and the calculation result stored in the calculation result storage means 62,
The scale is set on the vertical axis and the horizontal axis of the graph specified in the graph selection menu of FIG. When one graph is required to be created, the drawing means 63 sets the scale of the vertical axis and the horizontal axis of the graph so that the graph can be efficiently expressed. If multiple graphs are requested,
The scale setting means 63 sets the scale of the graph so that all graphs of the designated title can be drawn.

FIG. 8 shows a specific example of the graph scale designation screen. When the scale of the explanatory diagram graph is set, the normal distribution diagram creating means 6 causes the overall control unit 3 to input an input screen for designating the scale of the graph. Is displayed on the display device 10. In this graph scale designation screen, various kinds of information (minimum value MIN, maximum value MAX, average value HB, standard deviation σ, process capability index CP) required for scale designation are displayed, and a title (data name) and The number of samples n is displayed.

Further, the normal distribution map creating means 6 displays the X-axis and Y-axis scales set by the scale setting means 63 on the screen. Then, when the designation input is made from the scale input means 28, the inputted scale information is supplied to the graph drawing means 64, and the preset specific key is operated without the designation by the scale input means 28. In this case, the scale set by the scale setting means 63 is adopted.

When the scale of the graph is set, the graph creating means 64 determines the selected model based on the data stored in the calculation result storing means 62 and the scale information supplied from the scale setting means 63. Draw a graph.
When two or more titles are specified, the title position specifying means 65 recognizes the order in which the graphs of the respective titles are arranged, based on the selected graph type and the average value of the data of the respective titles. Set the position to display the character information such as the title name and average value according to the layout order of the title graph.

The normal distribution map creating means 6 temporarily stores the data of the drawn graph and the data relating to the display position of the character information in the drawing result storing means 66, and then temporarily stores the stored data. The graph is displayed on the screen of the display device 10 by being supplied to the display control unit 8 via. Further, when a printout request of the drawing result is made, the normal distribution map creating means 6 supplies the drawing result data in the drawing result storing means 66 to the printer 9 via the overall control section 3 and the printer I / F section 7. However, the printing result is printed out.

Therefore, by designating the model of the graph and the title (data name) of the drawing target, the graphs shown in FIGS.
Various graphs such as shown in can be drawn. FIG. 9 is an explanatory diagram showing a drawing example of a vertical graph. In this vertical graph, five titles (data names) are designated, and five graphs and titles indicating what data each graph represents are output on the same screen or the same paper. Since the character information such as titles is arranged according to the arrangement order of each graph, each graph does not have to be displayed in each color without displaying each graph or each character information using a color display device or a color printer. You can easily understand whether or not it corresponds to the data.

In FIG. 9, in the area on the left side of the graph,
An example is shown in which character information such as titles is sequentially arranged from top to bottom according to the average value order of each graph. In addition, this FIG.
In addition to the title (data name), the average value XBAR and the estimated defective rate are displayed on the left side of the graph. Also, the standard deviation is displayed in the graph. The standard deviations are arranged from top to bottom corresponding to the arrangement order from left to right of each graph. The character information such as the title displayed outside the graph and the standard deviation displayed inside the graph may be sequentially arranged from left to right in accordance with the arrangement order of each graph. Vertical dashed lines in the graph indicate the lower limit standard value and the upper limit standard value.

While the graph is displayed, the COPY key is operated to print out the drawing result, and the STOP key is operated to return to the initial memory screen. When multiple title (data name) graphs are selected,
Since it is difficult to display all the calculation results for each title on the display screen due to the limitation of the display space, the display items are limited. Therefore, when the printout is requested, the normal distribution diagram creating means 6 prints out all the data stored in the calculation result storing means 62. As a result, for example, calculation results can be obtained for items that are not displayed on the screen, such as the number of samples N and the estimated defective rate on the upper side and the lower side.

FIG. 10 is an explanatory diagram showing an example of drawing a horizontal graph. It is possible to plot a maximum of 5 data (titles) at the same time for the horizontal graph, but only one data is specified here. When there is only one data, all the calculation results are displayed on the side of the graph. In FIG. 10, in the area on the left side of the graph, title (data name), date, issuing department name, creator name, number of samples N, minimum value MIN of data, maximum value MAX of data,
Average value XBAR, standard deviation σ, process capability index CP, process capability index CPK that evaluates deviation, estimated defective rate (overall,
(Lower side, upper side), reference value and its ± range, X axis / Y of graph
The axis scale items are displayed. Therefore, by printing out the drawing example shown in FIG.
The normal distribution map and the items required for quality control can be obtained on the same page.

FIG. 11 is an explanatory diagram showing a drawing example of a horizontally opposed graph, FIG. 12 is an explanatory diagram showing a drawing example of a vertically stacked graph, and FIG. 13 is an explanatory diagram showing a drawing example of a horizontally stacked graph. The normal distribution map creating means 6 is the scale setting means 6
3 is the scale (X
Since the graph plotting means 64 plots a graph of a designated type based on the scales having the same axis, the graph plotting means 64 can easily compare and examine the data of the two groups. The title position specifying means 65 arranges data such as titles, average values, and standard deviations in correspondence with the respective graphs arranged on the left and right or on the upper and lower sides.

When data input and drawing are selected in the drawing submenu shown in FIG. 5, the overall control section 3 displays the data input screen shown in FIG. 4 on the display device 10 to input data. Urge. The data management means 5 manages the input data as temporary storage (provisional) data. When the data input is completed, the overall control unit 3 displays the graph type selection menu shown in FIG. When the graph type is selected, the data managing means 5 supplies the temporarily stored (provisional) data to the normal distribution chart creating means 6. This allows
The selected graph is created and displayed on the screen of the display device 10.

Since the graph creating means 64 in the normal distribution drawing creating means 6 is configured to create a normal distribution drawing based on the average value and the standard deviation, the normal distribution drawing can be created without inputting measurement data. Can be created. In such a case, a plot from the average value and standard deviation is selected in the plot submenu shown in FIG. The overall control unit 3 causes the display device 10 to display a screen for prompting the input of the average value and the standard deviation, and displays the graph type selection menu when the average value and the standard deviation are input. Then, when the graph type is selected, the previously input average value and standard deviation are supplied to the normal distribution map creating means 6 to create and display a graph.

In this embodiment, the maximum number of data that can be simultaneously plotted is 5, but these values can be appropriately changed according to the number of data to be simultaneously compared.

FIG. 14 is a flow chart showing the overall operation of the normal distribution map creating apparatus. In the normal distribution map creating apparatus 1, first, the processing content is selected from the initial menu shown in step S1. When data input is selected (S2), a title (data name) and measurement data are input according to the contents displayed on the screen of the display device 10 (S3), and the input data can be written to the floppy disk (FD). Yes (S4).

When it becomes necessary to correct already input data. Floppy disk (FD) by selecting the data correction (S5) and specifying the title (data name)
The data to be corrected is read from (S6), the correction is performed with the data displayed on the screen (S7), and the corrected result can be written to the floppy disk (FD) (S8).

When the data is no longer needed, data deletion is selected (S9) and the title (data name) list stored in the floppy disk (FD) is referred to (S).
10) By designating an unnecessary title (data name) (S11), the corresponding data can be deleted (S12).

If the measurement data needs to be printed, the data printing is selected (S13) and the floppy disk (FD) is selected.
By referring to the title (data name) list stored in the printer (S14) and designating the title (data name) for which data needs to be printed (S15), the printer 9
A printout can be obtained from (S16).

Select a plot from the saved data in the plot submenu (S17) and specify the graph type (S1).
8) Referring to the title (data name) list stored in the floppy disk (FD) (S19), the title (data name) to be plotted is selected and designated (S).
20), an average value, a standard deviation, etc. are calculated, a normal distribution map is drawn, and displayed on the screen of the display device 10 (S2).
1). Further, the normal distribution map and the calculation result can be printed out (S22).

If the user wants to create a normal distribution chart by inputting temporary data, etc., he / she selects a plot by data input (S23), specifies the graph type (S24), and inputs data (S25). ), The input data is temporarily saved (S26), and a normal distribution map is created and displayed in a graph (S27). Further, the created normal distribution map can be printed out if necessary (S28).

Further, when it is desired to create a graph based on the target mean value or standard deviation, the plotting from the mean value and standard deviation is selected (S29), and the model of the graph is designated (S29).
30), the average value and the standard deviation are input (S31). The input average value and standard deviation are temporarily stored as needed (S32). A normal distribution map based on the average value and standard deviation is created and displayed in a graph (S33). Further, the created normal distribution map can be printed out if necessary (S34).

Therefore, a title is attached to each measurement data group for each production lot, each production date, etc. and input, and in the drawing process from step S17, the normal distribution chart of a plurality of data groups is output in the specified graph format. Therefore, it becomes easy to compare and examine a plurality of data groups. Since this normal distribution map creation apparatus 1 can create normal distribution maps of various types even for one group of data, when considering specific data, a scale (X axis, A graph of Y-axis scale) can be output. For example, if you specify multiple data such as daily or weekly, the graph scale (X-axis, Y-axis scale) is set so that multiple normal distribution maps can be expressed, and the plotted results are output. The work efficiency of examination can be improved. Since the normal distribution map creating apparatus 1 can draw graphs of various types, it is possible to effectively carry out comparison and examination by selecting a graph type according to the evaluation target.

[0072]

As described above, the apparatus for creating a normal distribution map according to claim 1 manages the data of a plurality of groups and their titles in association with each other, and the data of each group specified by the drawing target specifying means. The average value and standard deviation are calculated based on the above, the normal distribution map is drawn based on the calculation results, and the multiple normal distribution maps are combined and arranged so that they are displayed on the same screen or the same paper. Therefore, it is possible to output a plurality of normal distribution maps on the same screen or the same paper. Therefore, it is possible to easily compare and examine related management items.

Since the apparatus for creating a normal distribution map according to claim 2 is provided with an erroneous input preventing means for validating only numerical data, data other than numerical data will not be erroneously input.

The normal distribution map generating apparatus according to claim 3 is an input allowable range setting means for setting an allowable range of numerical input data, and if the input data exceeds the allowable range, the input data is input. Since it is equipped with a means to prevent erroneous input that displays a message prompting confirmation of
By allowing the input operator to check the input of data exceeding the preset allowable range at the time of inputting the data, erroneous input can be reduced.

The normal distribution map generating apparatus according to claim 4 takes out a series of data input in association with the title, displays the data on the screen of the image display device, and changes the displayed data. Therefore, it is possible to change / correct input data in a short time.

The normal distribution chart preparing apparatus according to the fifth aspect comprises target value setting means for setting a target average value and a target standard deviation, and the normal distribution chart preparing means is set by the target value setting means. Since the normal distribution map is drawn based on the average value and standard deviation, the target normal distribution map can be drawn even when there is no measurement data.

In the normal distribution map creating apparatus according to the sixth aspect, when the plurality of normal distribution maps are created, the normal distribution map creating means is
Because the information such as the character strings related to each title is combined and arranged according to the arrangement order of each normal distribution map, it is possible to color-code multiple normal distribution maps and to make different line types for drawing. It is possible to determine what item each normal distribution map shows. For example, a plurality of normal distribution charts can be distinguished by displaying each title in order of magnitude of the average value. Therefore, even when a monochromatic display device or printer is used, it is possible to identify which item each normal distribution map corresponds to.

In the normal distribution map creating apparatus according to the seventh aspect, the normal distribution map creating unit is configured to draw a normal distribution map based on the drawing model specified by the drawing model selecting unit.
A desired display type can be selected and designated according to the item to be evaluated, and a normal distribution map can be plotted in the designated display type.

In the normal distribution map creating apparatus according to the eighth aspect, the normal distribution map creating unit is configured to draw a normal distribution map based on the scale designated by the scale input unit.
It is possible to draw a normal distribution map of a desired scale.

The normal distribution map creating means of the normal distribution map creating apparatus according to claim 9 calculates the average value and the standard deviation based on the data of each designated group, and based on the respective calculation results. Since a scale capable of drawing a normal distribution map is set and each normal distribution map is drawn based on the set scale, a plurality of normal distribution maps have the same scale. Therefore, comparative evaluation becomes easy.

[Brief description of drawings]

FIG. 1 is a functional block configuration diagram of a normal distribution map creating apparatus according to the present invention.

FIG. 2 is an explanatory diagram showing a display example of an initial menu.

FIG. 3 is an explanatory diagram showing a specific example of a title input screen.

FIG. 4 is an explanatory diagram showing a specific example of a data input screen.

FIG. 5 is an explanatory diagram showing a display example of a drawing submenu.

FIG. 6 is an explanatory diagram showing a display example of a graph selection menu.

FIG. 7 is an explanatory diagram showing a specific example of a drawing data selection screen.

FIG. 8 is an explanatory diagram showing a specific example of a graph scale designation screen.

FIG. 9 is an explanatory diagram showing an example of drawing a vertical graph.

FIG. 10 is an explanatory diagram showing a drawing example of a horizontal graph.

FIG. 11 is an explanatory diagram showing a drawing example of a horizontally opposed graph.

FIG. 12 is an explanatory diagram showing a drawing example of a vertically stacked graph.

FIG. 13 is an explanatory diagram showing a drawing example of a horizontal stacking type graph.

FIG. 14 is a flowchart showing the overall operation of the normal distribution map creating apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Normal distribution map creation device 2 Input operation part 3 Overall control part 4 Erroneous input prevention means 5 Data management means 6 Normal distribution map creation means 9 and 10 Display device which constitutes output means, printer 22 Title input means 23 Data input means 24 Allowable range setting means 25 Target value setting means 26 Drawing target specifying means 27 Drawing type selecting means 28 Scale input means 55 Data correcting means 61 Average value / deviation calculating means 63 Scale setting means 64 Graph drawing means 65 Title position specifying means

Claims (9)

[Claims] 1. A data management means for managing a plurality of groups of data and titles assigned to the respective groups of data in association with each other, and a drawing target specifying means for specifying data of two or more groups as a drawing target. Then, the mean value and standard deviation are calculated based on the data of each specified group, and the normal distribution map is plotted based on the calculation results. A normal distribution map comprising means for synthesizing and arranging so that the normal distribution map is displayed so as to be displayed, and image output means for displaying or printing out the normal distribution map drawn by the normal distribution map creating means. Creation device. 2. An erroneous input preventing means for judging whether or not the data input from the data inputting means such as a keyboard is numerical data and accepting only the numerical data. 1. The normal distribution map creation device described in 1. 3. An allowable range setting means for setting an allowable range of numerical input data, and when the input data exceeds the allowable range, a message prompting confirmation of the input data is displayed visually or audibly. The normal distribution map generating apparatus according to claim 1, further comprising erroneous input prevention means. 4. A data correction means for changing the data designated by the data input means in a state where a series of data managed in association with the title is taken out and displayed on the screen of the image display device. The normal distribution map creating apparatus according to claim 1, further comprising: 5. A target value setting means for setting a target average value and a target standard deviation is provided, and the normal distribution map creating means is based on the average value and standard deviation set by the target value setting means. 2. The normal distribution map generating apparatus according to claim 1, wherein the normal distribution map generating device is configured to draw a normal distribution map. 6. When a plurality of normal distribution maps are drawn, the normal distribution map creating means is configured to combine and arrange information such as a character string related to each title in correspondence with the arrangement order of the normal distribution maps. The normal distribution map creating apparatus according to claim 1, wherein 7. A plotting type selecting means for selecting and designing a plotting type of a normal distribution chart is provided, and the normal distribution chart creating means plots a normal distribution chart based on the plotting type designated by this plotting type selecting means. The normal distribution map creating apparatus according to claim 1, wherein the normal distribution map creating apparatus is configured as described above. 8. A scale input means for inputting a scale for drawing a normal distribution map is provided, and the normal distribution map creating means draws a normal distribution map based on the scale specified by the scale input device. The normal distribution map generating apparatus according to claim 1, which is configured. 9. The scale for creating the normal distribution map based on the data of each designated group, and calculating the normal distribution map based on the respective calculation results. Is set, and each normal distribution map is constructed based on the set scale.