JP2955879B2 - How to display graph data corresponding to output data on recording paper - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a method of displaying graph data corresponding to output data on recording paper, and more particularly, to a printer attached to a measuring instrument such as a clamp wattmeter. When displaying two or more types of output data, which are the processing results of measurement data, on a recording paper in a graph pattern separately, one type of scale numeral should be displayed as a common scale numeral common to each output data And a method for displaying graph data corresponding to output data on recording paper.

[Prior Art] A measuring instrument such as a clamp wattmeter is provided with a printer so that output data obtained based on the acquired measurement data can be printed as graph data on recording paper by the printer and output and displayed. There is something that is.

FIG. 5 shows an example of a conventional output display as graph data on recording paper when output data is of two types, a current value and a power value.

According to the drawing, the recording paper 1 is positioned in the sending direction and is divided for a predetermined period of time, for example, one hour at regular intervals, from "1" to "8" indicating a total of eight hours. X axis 3 having scale numbers 3a in the vicinity thereof, each of which has a scale at a position corresponding to each scale number 3a;
It has a graph display area 6 partitioned by a start end Y axis 4 and an end end Y axis 5 with respect to the X axis 3.

Among them, the starting end side Y-axis 4 has individual scale numerals 4a indicating the power value (kW) located near the upper side thereof, for example, “1”.
Scales corresponding to scale numbers 4a that are integral multiples of "2" up to "0" are provided.

The end-side Y-axis 5 is a scale corresponding to an individual scale numeral 5a indicating a current value (A) positioned near the lower side thereof, for example, a scale numeral 5a which is an integral multiple of "10" up to "50". Is attached.

In the graph display area 6 partitioned in the recording paper 1 in this manner, the power value as one output data is represented by a thin line graph 7 and the current value as the other output data is represented by a thick line graph 9 as a unit. The data is printed in the X-axis direction at each time, and the whole is output and displayed as interlocking stepwise linear graphs 8 and 10.

FIG. 6 is a flowchart showing an outline of a graph processing procedure when the linear graphs 8 and 10 shown in FIG. 5 are printed on the recording paper 1 and output and displayed.

According to the figure, first, on the recording paper 1, a graph pattern composed of a thin line and a thick line for distinguishing between the specified two types of output data is output to the graph item display column 2 as a graph item. After the scale numeral 4a for the starting end Y axis 4 with respect to the X axis 3 is printed, the starting end Y axis 4 and the scale are printed.

Thus, the linear graphs 8, 10 corresponding to the output data are printed along the X-axis 3 as the graph data every unit time, and after all the printing outputs are finished, the terminal side Y-axis 5 and its scale are displayed. Is printed, and the scale numeral 5a corresponding to the end-side Y-axis 5 is printed, and the process ends.

[Problems to be Solved by the Invention] When two types of output data are displayed as linear graphs 8 and 10 as shown in FIG. 5, the scale numbers 4a or 5a corresponding to the respective output data are As a result, the measured value corresponding to the output data can be easily read as a result of being displayed so that it can be read directly on the start end side Y axis 4 or the end side Y axis 5.

However, the scale numeral 4a or 5a itself is displayed individually in correspondence with the individual output data, so that each time specific output data is selected, the scale numeral corresponding to this specific output data is displayed. It had to be created including the unit, which was complicated.

In addition, in the case of the conventional method, two Y-axes for the X-axis 3 are required, i.e., the start-side Y-axis 4 and the end-side Y-axis 5, and two types of scale numbers 4a and 5a are required. Have to create a separate program for
There was also a problem that the operation became complicated. Furthermore, when the output data becomes more than three types,
There was also an inconvenience that it was difficult to display scale numbers.

[Means for Solving the Problems] The present invention has been made in view of the above problems,
The configurational feature is that a plurality of types of output data output based on the measurement data taken into the measuring instrument main body include an X-axis which is a time axis of a predetermined flow along a recording paper sending direction, and an X-axis. For a graph display area defined by the Y axis positioned on the starting end side of the X axis, each output data is displayed in a different graph pattern for each unit time so that the types of mutual data contents can be displayed. Is displayed as a common ratio unit equally divided with the maximum value being 1 along the Y axis, and the maximum value at the time of output display of each output data is the maximum value of the scale number 1 In this case, the graph pattern is displayed separately on the same recording paper.

[Operation] For the output data of two or more types selected from among a plurality of types of output data stored in the measuring instrument main body, a graph divided by the X axis and the Y axis on the recording paper is used. This can be displayed in the display area under different graph patterns.

Each output data displayed by such a graph pattern has its maximum value of 1 along the Y axis.
As a common scale numeral displayed as a ratio unit equally divided, and the maximum numerical value at the time of output display of each output data separately displayed on the recording paper, the maximum numerical value for the corresponding output data By converting and comparing, the actual numerical value can be read.

Therefore, by displaying one type of scale number on the Y axis of the recording paper, it can be used as a common scale number for two or more types of output data, which simplifies program creation for data processing. Can be

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 3 shows a schematic configuration of a printer unit attached to a measuring instrument main body such as a clamp wattmeter used in the embodiment of the present invention, and FIG. 4 shows correspondences between these components. It is an explanatory view showing the function for every block.

That is, measurement data such as current and voltage taken into the measuring instrument main body via the input terminal is subjected to necessary data processing such as performing necessary calculations for obtaining a power value or the like as output data, The output data is converted into a plurality of types of output data via an A / D converter, and two or more types of output data selected from these are output to the printer unit 11 shown in FIG.
Introduced to.

The printer unit 11 in which the two or more types of output data specified in this way are introduced, the RAM 12, a timer 13d, as well as a CPU 13 having a necessary ROM and RAM, a RAM 14, a drive circuit 15, A printer 16 for printing on the recording paper 21 is provided at least.

Of these, the RAM 12 stores time data and the maximum numerical value of the specified two or more types of output data at the time of output display, and is also provided for storing the specified two or more types of output data itself. Is done.

Further, the CPU 13 may store various data stored in the RAM 12, for example, if the stored data is a time data and a maximum numerical value at the time of output display of two or more types of output data, a specific scale numeral corresponding thereto. In addition to a function as a scale data creation processing unit 13a for creating specific scale data and a function as a graph data conversion processing unit 13b for converting the stored data into specific graph data if the stored data is output data, It is prepared to be in charge of required arithmetic control functions such as a function as a print data transfer processing unit 13c for transferring scale data, graph data, and the like stored in the RAM 14 as print data.

The RAM 14 is for storing scale data created through the scale data creation processing means 13a, graph data converted through the graph data conversion processing means 13b, and the like.

FIG. 1 is a flow chart showing a processing procedure for an embodiment of the method of the present invention which is executed via the printer unit 11 having such a configuration.

In this case, in addition to a plurality of types of output data obtained by calculating measurement data about the voltage and current taken into the measuring instrument body, for example, in addition to output data indicating the amount of power,
Appropriate two or more types, for example, two types of output data of power and current are selected from output data that can be output, such as data indicating active power, reactive power, apparent power, power factor, and the like.

After the two types of output data are specified in this way, a series of graph processing for printing out the graph data corresponding to each output data is started.

That is, in the printer unit 11, first, the RAM 1
X-axis data explanation display for the X-axis 24 provided with a scale 25 which is a time axis of a predetermined length along the sending direction of the recording paper 21 from the time data and output data maximum value storage memory 12a constituting the 2 In addition to the time data to be printed in the column 22, the maximum output data of ch1 and ch2 to be printed in the Y-axis data description display column 23 for the Y-axis 27 located at the start end of the X-axis 24 is the scale data. It is taken into the creation processing means 13a. Note that the scale numbers to be printed in the scale number display field 29 prepared near the Y axis 27 are stored in advance in a ROM provided in the CPU 13.

Then, the scale data creation processing means 13a creates time data, the maximum value of output data, and scale data including scale numbers, and stores the scale data in a scale data memory 14a constituting the RAM 14. For example, as shown in FIG. 2, the time data is set to “X: 1 (h / div)” in the X-axis data description display field 22 on the recording paper 21 by the printer 16 via the printer 16 via the channel 13c, and the output data of ch1 regarding the power The maximum value is "Y: (thin line) 10 (kW / fs)", and the maximum value of the power data of ch2 for current is "(thick line) 50 (A / fs)"
Are sequentially printed in the Y-axis data explanation display column 23, respectively.

In the graph pattern in FIG. 2, the output data for power is a thin line graph, and the output data for current is a thick line graph. Therefore, a thin line and a thick line are displayed to correspond to these. If necessary, an appropriate pattern other than the illustrated example can be adopted, such as a bar-shaped graph pattern, one of which is displayed in white and the other is displayed in black.

Next, in the scale numeral display field 29 of the recording paper 21, a common scale numeral for each output data is divided along the Y-axis 27 so that the full scale (fs) whose maximum value is 1 is equally divided. Thus, for example, “0.2”, “0.4”, etc. are displayed as different ratio units.

After the scale numbers are printed in the scale number display field 29 in this way, the Y axis 27 and the scale 28 are printed, and the Y axis 27 is printed.
A graph display area 30 is sectioned between.

In this case, first, the output data of ch1 and ch2 from the output data memory 12b constituting the RAM 12 is converted into the graph data conversion processing means for the graph display area 30 formed in this case.
13b, converted to graph data,
The print data is stored in the graph data memory 14b constituting the printer 14, and is printed by the printer 16 via the print data transfer processor 13c and the drive circuit 15.

Such graph data printing processing is repeatedly performed until the time is up in relation to the time preset in the timer 13d, and a graph corresponding to output data per unit time is displayed in the graph display area 30 of the recording paper 21. Is displayed.

Although the above description has been given of the embodiment in the case where two types of output data of power and current are selected from a plurality of types of output data, the present invention is applied to other two or more types of output data. There may be. In the illustrated example, one of the items displayed separately includes time data such as “X: 1 (h / div)” in the X-axis data description display column, but the display is omitted. , Only the Y-axis data explanation display column 23 may be displayed separately.

Since the present invention is configured as described above, of the plurality of types of output data stored in the measuring instrument main body, the selected two or more types of output data correspond to the X-axis on the recording paper 21. In a graph display area 30 defined by 24 and the Y axis 27, two or more types of graph patterns can be displayed.

Each output data displayed by such a graph pattern is displayed as a ratio unit equally divided with its maximum value being 1 in a scale numeral display field 29 provided along the Y axis 27. Scale number and Y of recording paper
Of the maximum numerical values for each of the output data that can be output separately displayed in the axis data description display column 23, the actual numerical value is converted and read by comparing with the maximum numerical value for the corresponding output data. be able to.

Therefore, the scale number in the scale number display field 29 is
Apparently, even if one type is displayed, it is actually shared as a common scale number corresponding to two or more types of output data by associating it with the display content of the Y-axis data description display column 23. Can simplify the creation of programs for data processing.

In addition, since the Y-axis 27 is provided as one axis at the upper end side of the X-axis 24, the graph display area 30 can be sectioned and formed, so that creation of a program for data processing can be further simplified.

[Effects of the Invention] As described above, according to the present invention, two or more types of different graph patterns are displayed in the graph display area defined by the X axis and the Y axis on the recording paper. The output data includes a scale numeral displayed as a ratio unit equally divided with the maximum value being 1 along the Y axis, and a maximum numerical value for each output data which is separately displayed on a recording paper. By comparing with the maximum numerical value of the corresponding output data, the actual numerical value can be converted and read.

Therefore, the scale numbers in the scale number display column, even though one type is apparently displayed, actually correspond to two or more types of output data by associating with the maximum value of each output data. This can be used as a common scale numeral, which can simplify the creation of a program for data processing.

Also, the graph display area can be sectioned by providing one axis at the upper end side of the Y axis with respect to the X axis.
Further, the creation of a program for data processing can be simplified.

[Brief description of the drawings]

FIG. 1 is a flowchart showing an example of a processing procedure of the method of the present invention, FIG. 2 is an explanatory diagram showing an example of displaying a graph on a recording sheet by the method of the present invention, and FIG. FIG. 4 is a block diagram showing functions of the printer unit shown in FIG. 3, and FIG. 5 shows an example of a graph display on a recording sheet by a conventional method. FIG. 6 is a flowchart showing a processing procedure of the conventional method corresponding to the display example of FIG. 11 Printer section, 12 RAM, 12a Memory for maximum time data and output data, 12b Output data memory, 13 CPU, 13a Scale data creation processing means, 13b for graphs Data conversion processing means 13c Print data transfer processing means 13d Timer 14a RAM 14a Scale data memory 14b Graph data memory 15 Drive circuit 16 Printer 21 …… Recording paper, 22 …… X axis data explanation display field, 23 …… Y axis data explanation display field, 24 …… X axis, 25 …… Scale, 26 …… X axis scale number display field, 27 …… Y Axis, 28… Scale, 29… Scale numeric display field, 30… Graph display area, 31… Thin line graph, 32… Thick line graph, 33, 34… Graph pattern.

Claims (1)

(57) [Claims] A plurality of types of output data output based on measurement data taken into a measuring instrument main body include an X-axis which is a time axis having a predetermined length along a recording paper sending direction, and an X-axis. In the graph display area defined by the Y axis positioned on the starting end side of the axis, each output data is displayed in a different graph pattern for each unit time so that the type of the mutual data content can be displayed. The scale numeral is displayed as a common ratio unit equally divided with the maximum value being 1 along the Y axis, and the maximum numerical value at the time of output display of each output data is the maximum value 1 of the scale numeral. And displaying the graph pattern separately on the same recording paper in accordance with the graph pattern.