JPH0450719A - Duplicating display device for measurement data - Google Patents

Abstract

PURPOSE:To display plural kinds of measurement data on the same screen at the same time by finding the absolute deviation values of the measurement data from >=3 kinds of measurement points and displaying those values on the screen. CONSTITUTION:The sampling data of various sensors 1a, 1b, and 1c which are arranged at the respective measurement points are stored in a 1st storage part 4 in order. An absolute deviation value arithmetic part 7 performs arithmetic based upon the sampling data stored in the 1st storage part 4 and set values at the respective measurement points which are stored in a 2nd storage part 5 by using an equation to find the absolute deviation values T(%) from the set values at each sampling period. The absolute value data by the measurement points are stored in a 3rd storage part 6 and then processing for displaying them on a data storage part 8 is performed. Namely, even if measurement units are different, the display method is standardized into the absolute deviation system to make only a % display on the ordinate, thereby displaying >=3 kinds of sampling data on the same screen at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a measurement data overlap display device that displays a plurality of types of measurement data using an absolute deviation display method.

(Prior art) Conventionally, this type of measurement data display device displays the measurement unit of measurement data on the vertical axis on the screen, displays the measurement time on the horizontal axis, and displays the measurement data value at each measurement time. A display method was adopted in which the entire measurement data was displayed on the screen as a line graph by sequentially displaying the measured data on the display screen and sequentially connecting each of these points with a straight line or curved line.

Such measurement data display devices have two types of vertical axes with different measurement units on both the left and right ends of the display screen.
By plotting the measurement time on the horizontal axis, it is possible to display up to two different types of measurement data.

(Problem to be solved by the invention) However, the measurement unit taken on the vertical axis is, for example, temperature (°C
), speed (m/3), rotation speed (rpm), etc., it is possible to display up to two types of data as described above, but it is not possible to display three types of similar data simultaneously on the same screen. It was impossible to do so.

The present invention has been made in view of the above circumstances, and its purpose is to display three types of similar and different data simultaneously on the same screen by unifying the display units of the vertical axis using absolute deviation display. The object of the present invention is to provide a device for displaying measurement data that can be duplicated.

(Means for Solving the Problems) In order to solve the above problems, the measurement data duplication display device according to the present invention includes measurement means for measuring respective data from at least three types of similar measurement points, and each measurement point. a set value input means for inputting a set value to be a reference value for comparison; and a set value input means for inputting a set value to be a comparison reference value in A configuration comprising an absolute deviation value calculation means for calculating the absolute deviation value of each measurement data, and a display means for displaying the absolute deviation value of each measurement data obtained by the absolute deviation value calculation means redundantly on the same screen. adopt.

(Function) The absolute The absolute deviation value of each measurement data with respect to each setting value is determined by the deviation value calculating means. That is,
The absolute deviation value of each measurement data with respect to each set value is determined, for example, as a percentage of each set value. In order to display the absolute deviation value at each measurement point obtained in this way, the display means sets a zero point at the center of the vertical axis, and moves up and down ± from this zero point.
Set the scale to 50%. Further, the measurement time is set on the horizontal axis on a scale of, for example, 1 second to 999 hours. Then, the absolute deviation value of each measurement data at each measurement time is
By displaying points in terms of the seasonal rate (%) in the vertical direction from the zero reference axis drawn horizontally from the zero point on the vertical axis, and connecting each measurement point for each measurement data displayed in points with a straight line or curve, On the screen, it is possible to simultaneously display measurement data of at least three different scales.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the electrical configuration of a measurement data duplication display device according to the present invention.

In the figure, 1a+IJ lc are various sensors provided at each measurement point. For example, when the present invention is applied to control an extrusion molding machine, 1a is a temperature sensor that detects the temperature of the resin extrusion part, lb is a rotation speed detection sensor that detects the rotation speed of the extrusion screw, and the IC serves as a speed detection sensor that detects the rotational speed of the screw.

The outputs of these various sensors la, lb, and lc are led to the main control section 2. The main control section 2 controls the entire device, and receives the output of an input section 3 that inputs set values that serve as comparison reference values at each measurement point. Also,
The main control section 2 is bidirectionally connected to each of the first storage section 4, the second storage section 5, and the third storage section 6, and is also bidirectionally connected to the absolute deviation value calculation section 7. . The first storage unit 4 is a storage unit that stores data measured by various sensors la, ib, and lc in correspondence with respective measurement points, and the second storage unit 5 stores data that is input from the input unit 3. This is a storage unit that stores set values that serve as comparison standards with measurement data at each measurement point. Further, the absolute deviation value calculation section 7 calculates the following based on the measurement data at each measurement point stored in the first storage section 4 and the set value at each measurement point stored in the second storage section 5. This is a calculation unit that calculates the absolute deviation value of the measurement data with respect to the set value, and the data indicating the absolute deviation value calculated by this absolute deviation value calculation unit 7 is stored in the third storage unit 6. There is.

Further, the output 2a of the main control section 2 is led to the data display section 8 as a signal indicating the measurement data stored in the first storage section 4 and the absolute deviation value data stored in the third storage section 6. The output of the data display section 8 is directed to a printer 9.

In addition to inputting set values that serve as comparison reference values at each measurement point, the input unit 3 also inputs instruction signals such as an instruction to send data to the data display unit 8 and an instruction to send data to the printer 9. Instruction signals for selecting measurement data, setting measurement cycles, etc. are input to the main control section 2.

FIG. 2 shows an example of data displayed on the display screen of the data display section 8. As shown in FIG.

That is, a vertical axis is drawn at the left end of the screen, and the center of the vertical axis is set as the zero point. Then, a scale of ±50% is set up and down from this zero point. In addition, the horizontal axis shows the measurement time, for example, 1
Set on a scale from seconds to 999 hours. However, in the drawing, the scale is set from 0 to 100 hours. Then, the absolute deviation value of each measurement data at each measurement time is displayed in points as the isolation rate (%) in the vertical direction from the zero reference axis drawn horizontally from the zero point on the vertical axis, and each measurement data displayed in points is Straight or curved solid lines between each measurement point (others include thin lines, broken lines, -dot-dashed lines, double-dot chain lines, etc.)
By connecting the lines with , at least three similar measurement data of different scales are displayed simultaneously on the screen.

Next, the operation of the measurement data duplication display device with the above configuration is as follows.
This will be explained with reference to the flowcharts shown in FIGS. 3 to 5.

First, a comparison reference value (set value) for comparison with data measured at each measurement point is input from the input unit 3. This set value is stored in the second storage section 5 via the main control section 2. In addition, by operating the input unit 3, it is now possible to specify from which measurement point data is to be measured (hereinafter referred to as sampling in this specification) and to specify the sampling period. The operator also performs each of these operations (steps Sll to 51).
5). Thereafter, sampling by the various sensors la, lb, and lc is started by a key operation (not shown), or sampling by the various sensors la, lb, and lc is started at a time set in advance by a timer device (not shown) (steps 316 to 316). 519).

As a result, various sensors 1'a arranged at each measurement point,
Sampling data sampled from a designated sensor among lb and lc is sent to various sensors la, lb and l.
c in correspondence and are sequentially stored in the storage unit 4 of the cylinder 1 (steps 821 to 523).

Next, the absolute deviation value calculation section 7 calculates the amount of the various sensors sampled as described above and stored in the first storage section 4.
The sampling data for each a, lb, and lc and the set value at each measurement point stored in the second storage unit 5 are read through the main control unit 2, and the lower Calculate according to formula (2) to obtain the absolute deviation value T (%) from the set value for each sampling period.

The absolute deviation value data for each measurement point obtained by the absolute deviation value calculation section 7 in this manner is stored in a predetermined storage area of the third storage section 6 via the main control section 2. Thereafter, the absolute deviation value data stored in the third storage section 6 is displayed on the data display section 8.
(Step 524)
.

That is, when the operator wants to display various data stored in the third storage section 6 on the data display section 8, the operator inputs an instruction to display the data from the input section 3, and at the same time inputs the data display instruction at the measurement point to be displayed. Selection of sampling data (this selection
At least one type may be selected, but in this embodiment, up to ten types can be selected at the same time. ) (steps 531 to 534). Thereby, the main control section 2 sequentially reads out the sampling data instructed by the input section 3 from the third storage section 6 and sends it to the data display section 8.

In the data display section 8, as mentioned above, at the left end of the screen,
Set the center as the zero point and move up and down ±50 from this zero point.
A screen is displayed in which the vertical axis is set with a scale of %, and the horizontal axis is set with measurement time on a scale from 0 to 100 hours, for example, in the center of the screen. Then, each sampling data (absolute deviation display %) read out from the third storage unit 6 is displayed as a point on the screen of such a scale, and by connecting each point with a straight line or a solid curved line, etc. , at least three types of sampling data (trend data) with similar and different measurement units are displayed simultaneously on the screen (step 535).

In other words, even if the measurement units are different, by unifying the display method to the absolute deviation method, which is unrelated to the measurement unit,
Since the vertical axis only shows percentages, three types of similar sampling data can be displayed simultaneously on the same screen. In this embodiment, as shown in FIG. 2, four types of data connected by solid lines, broken lines, -dot-dashed lines, two-dot chain lines, etc. are displayed simultaneously. In addition, on the right side of the screen, displays indicating the types of data in the line graph connected by various lines are shown using symbols such as 2C, 3C, etc. For example, 2C is the resin temperature, 3
c indicates the screw rotation speed, 4C indicates the screw rotation speed, etc.

Furthermore, if you wish to print out the data displayed on the data display section 8, by inputting a signal instructing the printout from the input section 3, the display screen data at that time will be printed out from the printer 9. It has become.

On the other hand, the data display section 8 displays sampling data measured by various sensors la, lb, and lc in real time.
When displaying in real time, a signal instructing real-time display is inputted from the input unit 3. Main control section 2
By receiving this signal, various sensors la, l
The sampling data from b and lc are stored in the first storage unit 4, and at the same time, they are sequentially input to the absolute deviation value calculation unit 7. The absolute deviation value calculation unit 7 uses various sensors la.

Sampling data input sequentially from lb and lc,
Based on the setting values read from the second storage section 5, the absolute deviation values are sequentially calculated using the above-mentioned formula 0, and the obtained absolute deviation value data is sent to the third storage section 6 via the main control section 2.
The data are sequentially stored in the data display unit 8, and are also sent to the data display unit 8, so that the above-described screen display is performed sequentially in real time. Then, until the measurement time set on the time axis (horizontal axis) (in this example, 10
Until 0 hours. ) When the absolute deviation of the sampling data is displayed, the screen is updated, and the sampling data is continuously displayed from the left end of the screen (steps 831 to S35).

Furthermore, if you wish to print out the data displayed on the data display section 8, by inputting a signal instructing to print out from the input section 3, the display screen data at that time is printed out from the printer 9. It looks like this.

In this way, various sampling data of different measurement units can be displayed simultaneously on the same screen in any combination, so that the interrelationships among the various sampling data can be easily confirmed.

In addition, in the above embodiment, the scale of the vertical axis of the display screen shown in FIG. 2 is explained as ±50%, but it is not limited to this scale, and can be set to ±100%, etc. It is.

(Effects of the Invention) The measurement data duplication display device according to the present invention displays measurement data from at least three similar measurement points measured by the measurement means, and each measurement point input by the set value input means. Based on the set value that becomes the comparison reference value in , the absolute deviation value calculation means calculates the absolute deviation value of each measurement data for each set value, and this absolute deviation value is displayed on the screen. This has the effect that multiple types of measurement data with different measurement units can be displayed simultaneously on the same screen. Furthermore, since the scale of the vertical axis is unified, it is also possible to easily understand the interrelationships between a plurality of types of measurement data with different measurement units.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the electrical configuration of the measurement data duplication display device according to the present invention, FIG. 2 is a line graph showing an example of data display on the display screen of the data display section, and FIG.
5 through 5 are flowcharts for explaining the operation of the device. la, Ib 1c...Sensor 2...Main control section 3...Input section 4...First storage section 5...Second storage section 6...Third storage section 7 ... Absolute deviation value calculation section 8 ... Data display section 9 ... Printer

Claims (1)

[Scope of Claims] 1) Measuring means for measuring respective data from at least three types of similar measurement points; Set value input means for inputting a set value serving as a comparison reference value at each measurement point; an absolute deviation value calculation means for calculating an absolute deviation value of each measurement data with respect to each set value based on each measurement data measured by the means and each set value inputted by the setting input means; and this absolute deviation value. What is claimed is: 1. An overlapping display device for measurement data, comprising display means for displaying the absolute deviation value of the measurement data at each measurement point obtained by the calculation means overlappingly on the same screen for each measurement point.