JPH05333834A - Control chart display device - Google Patents

Abstract

PURPOSE:To obtain the control chart display device which can clearly display plural abnormal points on the same screen. CONSTITUTION:The control chart display device 1 consists of an input means 10 for inputting control data D, an automatic abnormal point detecting means 11 which detects abnormal points of received control data, a color map table setting and altering means 13 which sets a color map table 4 according to the received control data and sequentially updates the table, and a control chart output means 12 which generates a control chart on the basis of a control data D and the abnormal points from the automatic abnormal point detecting means 11 and blinks the abnormal points on the basis of updated data from the color map table setting and altering means 13. Further, the control chart output means 12 blinks the abnormal points, detected by the automatic detecting means 11, by using data of a variable color part in the color map table 4 sequentially updated by the color map table setting and altering means 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control chart display device constructed on an information processing system, and more particularly to a control chart display device for detecting a control abnormal point and displaying the abnormal point.

[0002]

2. Description of the Related Art Conventionally, this type of control chart display device 101
4, the quality control data D given by the input device 102 or the like is processed by the abnormal point detection means 111 and the control chart output means 112 to form a screen 130 on the display surface of the output device 103. It was displayed. This screen 130 shows X
A B-R control chart (XB represents "X bar") is displayed at the same time. Further, there is a center line CL in the XB-R control chart, an upper control limit line UCL and a lower control limit line LCL in the XB control chart, and an upper control limit line UCL in the R control chart.
There is. Here, in the management data D, for example, when data such as the abnormal points 131 and 132 on the screen 130 of FIG. 4 exist, the abnormal point automatic detection means 111 automatically detects the abnormal point and uses this as a symbol. Circled (abnormal point 131)
By enclosing it with a square mark (abnormal point 132), it is displayed so as to be distinguished from other normal points.

[0003]

In such a conventional control chart display device, since there is only a function of simply marking an abnormal point which is important in examining the control chart with a symbol or the like, the continuous tendency It was difficult to clearly distinguish and display various different abnormal patterns such as periodicity. Therefore, in addition to the control chart screen, another screen for listing and displaying abnormal points is created and displayed. Therefore, since the information is not collected on one screen, it is necessary to examine the management state while alternately referring to the control chart and the abnormal point list, which has a drawback that the work is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks and to provide a control chart display device capable of clearly displaying a plurality of abnormal points on the same screen.

[0005]

In order to achieve the above object, a control chart display device of the present invention comprises an input means for fetching management data, and an abnormal point automatic detection means for detecting an abnormal point of received management data. , A color map table setting / changing means that sets and sequentially updates a color map table based on the received management data, and creates a control chart based on the management data and abnormal points from the abnormal point automatic detection means, and creates a color map. A control chart output means for displaying an abnormal point in a blinking manner based on the data in the table is provided.

Further, the above-mentioned control chart output means uses the data of the variable color portion on the color map table, which is successively updated by the color map table setting / changing means, for the abnormal points detected by the abnormal point automatic detecting means. Is displayed.

Further, the above-mentioned color map table is characterized in that it is composed of a machine fixed section and a settable section consisting of a fixed color section and a variable color section which can be set by the color map table setting / changing means.

Therefore, the control chart display device of the present invention is
Since the abnormality of the management data can be color-coded according to the type of each abnormality and the color of the abnormality point can be displayed by blinking, a plurality of abnormality patterns can be clearly distinguished on the control chart.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a control chart display device of the present invention. The control chart display device 1 shown in this figure is connected to an input device 2 and an output device 3.
Further, the control chart display device 1 includes a color map table 4
The setting can be changed. The output device 3 described above can refer to the color map table 4.

Here, the input device 2 is, for example, a keyboard and a mouse, and is a device for inputting conditions for creating a control chart such as quality control data D and types of abnormal points to be detected.

The control chart display device 1 comprises an input means 10, an abnormal point automatic detection means 11, a control chart output means 12 and a color map table setting / changing means 13. Further, the abnormal point automatic detection means 11 receives the quality control data D and the conditions for creating the control chart input from the input device 2, and passes these data to the abnormal point automatic detection means 11 and the control chart output means 12. , A circuit that requests execution of processing.

On the other hand, the color map table setting / changing means 13 can set the color map table 4 for the output device 3 and sequentially change the RGB (red, green, blue) values of the variable colors of the table 4. It is a circuit like this. The abnormal point automatic detection means 11 analyzes the quality control data given from the input means 10, detects an abnormal point, and delivers it to the control chart output means 12. The control chart output means 12 creates a control chart of the quality control data received from the input means 10. At this time, the abnormal points received from the abnormal point automatic detection means 11 are plotted using the variable color portion of the color map table 4. The result is output to the output device 3. The output device 3 is displayed by, for example, a CRT or a window on the CRT.

FIG. 2 is a diagram for explaining the relationship between the color map table used in the embodiment of the present invention and the color map table setting / changing means.

As shown in FIG. 2A, the color map table 4 generally includes a machine fixing section 41 and a settable section 4.
There is 2. The settable unit 42 can be set freely and can set RGB values respectively. In addition, the color map table setting / changing unit 13 is configured as shown in FIG. 2 regarding the settable unit 42 divided into the fixed color unit 43 and the variable color unit 44.
As shown in (b), the RGB values of the variable color unit 44 are changed to RGB
The value is always 45y and the RGB value is 45z. By using the color number of the variable color portion 44 as shown in FIG. 2B, the abnormal point can be displayed by blinking. Further, each reference numeral in the drawing is the same as that of the conventional example.

Next, the operation of the embodiment thus constructed will be described with reference to FIGS.

Here, as an example, the case of displaying an XB-R control chart will be taken up.

The control chart display device 1 shown in FIG. 1 receives conditions such as quality control data and types of abnormal points to be detected from the input device 2. The abnormal points to be detected include the following.

When point (a) appears on one side of the center,
For example, 7 consecutive points, 10 or more consecutive 11 points, 12 or more consecutive 14 points, 14 or more consecutive 17 points, 2 consecutive points.
When 16 points or more out of 0 points.

(B) Upward and downward trends.

(C) Periodicity.

(D) Approach to the control limit line.

(E) Outside the control limit line.

Among these abnormal points, the one for which a detection request is made and the quality control data main body are the abnormal point automatic detection means 11
Is passed to. As a result, the abnormal point automatic detection means 11 extracts the abnormal point.

Color map table setting / changing means 13
Sets the color map table 4 as shown in FIG. 2 when the control chart display device 1 is activated. In FIG. 2, the color number “1” and the color number “2” are the machine fixing unit 41,
They are black and white respectively. The color numbers “3” to “256” are settable units 42 that can be freely set by the color map table setting / changing unit 13.

When an abnormality is found, the color map table setting / changing means 13 constantly changes the RGB value of the variable color portion 44 of the settable portion 42. In this example,
Although k + 1 is R (red) and the color number k + 2 is G (green), this is constantly changing.

A control chart is created by the control chart output means 12 using the abnormal points thus detected. At this time,
When statically displaying a fixed color such as axes and scales of the XB control chart and the R control chart, the machine fixed portion 41 or the fixed color portion 43 of the color map table 4 of FIG. 2A is used for display.

Further, in the case of dynamically blinking an abnormal point or the like, the variable color portion 44 of the color map table 4 is used to display it. Furthermore, by using different color numbers depending on the types of abnormal points, each abnormal point can be clearly distinguished on the control chart. The control chart created in this manner is displayed on the display surface of the output device 3 as shown in the screen 30 shown in FIG.

At this time, as shown in FIG. 3, on the screen 30, the abnormal points 31 are color-coded and blinked, and the abnormal points 32 are also color-coded and blinked.

As described above, in the present embodiment, the abnormal points are dynamically blinked and displayed in a unique color for each type, so that the abnormal points can be easily identified on the management chart 30. Further, modification of the control chart display device 1 for displaying in this way is only required to change the color map table 4, and no special processing is required. Therefore, the configuration of the entire device is simplified and reliability is improved. , Maintainability becomes high.

As described above, in the present embodiment, in the color map table setting / changing means 13, the settable section 42 for the color map table 4 of the output device 3 is divided into the fixed color section 43 and the variable color section 44. , The variable color section 44
R, G, and B values are constantly changed, and the output device 3 uses these to create an abnormal point detected by the abnormal point automatic detection means 11 using the data of the variable color portion 45 of the color map table 4, and By creating the date, date, etc. by using the machine fixed part 41 or the fixed color part 43 of the color map table 4, the management abnormal point can be displayed in different colors for each abnormal pattern by blinking.

Further, a plurality of abnormal patterns can be dynamically and clearly distinguished on the control chart. Furthermore, since the present embodiment can be simply implemented, reliability and maintainability are improved.

[0033]

As described above, according to the present invention, the abnormal points are color-coded and blinkingly displayed for each pattern, so that a plurality of abnormal patterns can be dynamically and clearly distinguished on the control chart. In addition, since the configuration is simple, there is an effect that reliability and maintainability are high.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a control chart display device of the present invention.

FIG. 2 is an explanatory diagram of a color map table and its peripheral devices according to an embodiment of the present invention.

FIG. 3 is a diagram for explaining a flow chart of the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a conventional control chart display device.

[Explanation of symbols]

 1 control chart display device 2 input device 3 output device 4 color map table 11 abnormal point automatic detection means 12 control chart output means 13 color map table setting / changing means 41 machine fixing section 42 settable section 43 fixed color section 44 variable color section

Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display area G09G 5/36 9177-5G

Claims (3)

[Claims] 1. An input means for taking in management data, an abnormal point automatic detection means for detecting an abnormal point of the received management data, and a color map for setting and sequentially updating a color map table based on the received management data. Table setting / changing means, control chart output means for creating a control chart based on the control data and the abnormal points from the abnormal point automatic detection means, and for blinking and displaying the abnormal points based on the data of the color map table And a control chart display device. 2. The control chart output means sets an abnormal point detected by an abnormal point automatic detection means by setting a color map table.
2. The control chart display device according to claim 1, wherein display is performed by using data of a variable color portion on a color map table that is sequentially updated by the changing means. 3. The color map table comprises a machine fixed section, and a settable section including a fixed color section and a variable color section which can be set by a color map table setting / changing unit. Control chart display device described.