JPS59147212A - Graphic display - Google Patents

Abstract

PURPOSE:To surely prevent erroneous acknowledge of data by a display wherein the representative value is indicated together with maximum and minimum values of data within a given unit width in which the representative value lies. CONSTITUTION:A train of data measured by a sensor 7 is inputted to first store means 3 through an A/D converter 8. Then, a unit width W used when reading the data from the first store means 3 is set to data selection means 10. Next, when a signal instructing data selection is applied to the data selection means 10, the data are sequentially read out of a store area of the first store means 3 for every given unit width W to select the representative, maximum and minimum values for every data included in the unit width W. The data selection means 10 sequentially outputs those values as selected data to second store means 4. Subsequently, when a video output instructing signal is inputted to output means 12, those values are outputted to a CRT18 via video signal converting means 16.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a graphic display device useful for graphically displaying a series of data.

(cff) Prior art In general, a series of measurement data with a large amount of information, for example, C
When displaying on a graphic display device such as an RT, there is a limit to the resolution of the graphic display device, so it is difficult to display all of the measured data on one screen. For this reason, in conventional devices of this type, data is extracted from the measurement data of multiple dragons at predetermined intervals, and only this extracted data is displayed on the screen as a representative point. I am trying to draw a graph as a set of .

However, if the above-mentioned sampled data is displayed in graph ink only, a problem arises in that even if the original measurement data contains important data such as analysis peaks, the data will not be extracted and will not be displayed on the screen. That is, because of the graphic display, data may be erroneously recognized, resulting in inaccurate data analysis.

(c) Purpose The present invention has been made in view of the above problems, and
The purpose is to prevent misrecognition of data and enable accurate data analysis.

2) Structure In order to achieve the above object, the present invention has the following configurations as in the past:
Instead of displaying only the sampled data, it is now possible to display the sampled data as a representative value, and in addition to this representative value, the maximum and minimum values of the data within a predetermined unit width that includes each representative value. It is composed of

(E) Examples Hereinafter, the structure of the present invention will be described with reference to the drawings.

In FIG. 1, 1 is a graphic display device of the present invention, and this graphic display device 1 includes a control section 2, a first
It is composed of second storage means 3 and 4 and a display section 5. The first storage means 3 has a capacity to store a large amount of data, and in this example, all measurement data detected by the sensor 7 is continuously inputted and stored via the A/D converter 8. .

The control section 2 includes a data selection means 10, an output means 12, and an operation panel 14. The data selection means 10 sequentially reads data from the storage area of the first storage means 3 for each predetermined unit width W, and selects the maximum value, minimum value, and representative value from the data included within this unit width W, respectively. Select. The output means 12 reads out the selection data already selected by the data selection means 10 from the second storage means 4 and outputs it to the display section 5. Operation unit 14
outputs a data selection signal to the data selection means 10 and an image output signal to the output means 12, respectively.

The second storage means 4 stores each data of the maximum value and minimum value 9 representative values for each unit width W selected by the data selection means 10 as selection data. The display section 5 has a video signal converting means 16 and a CRT 18. The video signal conversion means 16 inputs the selection data signal outputted from the output means 12 of the control section 2, converts it into an image signal, and converts it into an image signal.
This image signal is output to 18.

Next, the operation when graphically displaying a series of data in the above configuration will be described in more detail.

A series of data measured by the sensor 7 is input to the first storage means 3 via the A/D converter 8. Therefore, in the storage area A1 of the first storage means 3, all the input data r1 to rn from the start to the end of the measurement are stored, as shown in FIG. Next, by using the operation panel 14 of the control unit 2, the unit width W for reading out the data r1 to rn from the first storage unit 3 is set for the data selection unit 10.

For example, as in this example, four pieces of data in the storage area A1 are set as one unit width W. Next, the same operation panel 1
4 to the data selection means 10, the data selection means 10 selects data r1 to r for each predetermined unit width W from the storage area A1 of the first storage means 3.
While sequentially reading n, each data [r1 to r4) included within the read unit width W I Crr, ~r
8], [r9-r12. For lll+..., the representative 1i* r41 re+ r121
”, the maximum value M4. M8. M, 2., and the minimum value m4. m8. m, □.
r8. r, □...2M4゜MB2 M+2"l
"41 rr181 m12" is stored in the second storage means 4
The data will be sequentially output as selection data. As a result, as shown in FIG. 3, a pair group [r4°M4'
m4')' Crfil MB2 m8L
Cr121M121m12':]I'' is stored.Subsequently, when an image output instruction signal is input from the operation panel 14 to the output means 12, the output means 12 reads the image from the second storage means 4. Selection data (r,, M4.
m, ), Cr8. λ's+
r mouth s:] + (r121 M
+21"12L... and outputs it to the video signal converting means 16. The video signal converting means 16 converts this output signal into a layer image signal and outputs it to the CRTi3.

As a result, the representative values r41 r81 of the selection data are displayed on the screen of the CRT13 as shown in FIG. 4(b).
There is a dot corresponding to r121..., and above this dot are the maximum values M,, M8... The maximum point corresponding to M, □... is the minimum value m41 rrIIl below the dot.
The minimum points corresponding to l''+2... are displayed in different colors. That is, to the naked eye, as shown in FIG. M12''' Minimum value m41 r
Curves S corresponding to r181 “+2”,
B2. It will be displayed as a percentage. That is, for the curve S, maximum value and minimum value data are displayed simultaneously. In the display data Mn, rn
, In order to make the relationship between mn easier to understand, )) raCR
Color classification using T, Mn.

It is also possible to make it even easier to recognize by connecting rn and mn with a colored line.

(f) Effects As described above, according to the present invention, it is possible to display not only the representative value but also the maximum and minimum values of data within a predetermined unit width that includes this representative value. This makes it possible to reliably know important data such as analytical peaks that may be overlooked, thereby preventing misrecognition of data. Therefore, the accuracy of data analysis is also improved.
1 is effective.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is a block diagram including a graphic display device d, FIG. 2 is a schematic diagram showing the storage state of data in the storage area of the first storage means, and FIG.
The figure is a schematic diagram showing the storage state of selected data in the storage area of the second storage means, and FIG. 4 is an explanatory diagram of the data displayed on the screen of the CRT. (b) shows a partially enlarged state of (a). 1 graphic display device, 3...first storage means, 4
2nd storage means, 5. Display unit, 1o. Data selection means, 12. Output means. Patent applicant: Shimadzu Corporation Representative Patent attorney: Kazuhide Okada 2nd Division A. Figure 4

Claims (1)

[Claims] ++) a first storage means storing a series of data;
This data selection means sequentially reads out the data for each predetermined unit width from the first storage means and selects a representative value, a maximum value, and a minimum value from the data included in each unit width; a second storage means for storing each data of the representative value, maximum value, and minimum value for each unit width selected by the data selection means as selection data; and reading out the selection data stored in the second storage means. 1. A graphic display device comprising: output means for outputting to a display section.