JP2004219239A - Measuring apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a measuring apparatus capable of easily carrying out monitoring a program operation, by employing display areas in the same screen where a program pattern and an occurrence timing when a program event occurs, are displayed respectively, and by simultaneously displaying them in the same time series. <P>SOLUTION: The measuring apparatus is constituted to control an object to be controlled, based on the program pattern set from a process in a control operation and a measurement result input from the object to be controlled, and to display the measured result. In addition, the measuring apparatus includes a graph display data making part which makes at least one display data set of the program pattern and the measurement result, and an event display data making part which makes at least one display data set of event occurrence information occurring during the control operation and other event occurrence information occurring after this, based on an event occurrence condition set beforehand, and displays the event occurrence information and at least one of the program pattern and the measurement result in the same time series. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a measurement device having a function of outputting a control signal for operating a control target and displaying a trend of a measurement result of an input signal from the control target, and more particularly to improvement of a display function.
[0002]
[Prior art]
Generally, in controlling the temperature of an electric furnace such as a thermostat, a program pattern signal in which a predetermined temperature change pattern with respect to time is set in advance, and a temperature sensor for measuring the temperature of the program pattern signal and the temperature of a thermostat to be controlled. There is one that outputs an operation signal for controlling heat generation of a heater in a constant temperature layer based on a temperature measurement signal and performs a control operation (program operation) according to a program pattern (for example, see Patent Document 1). ).
[0003]
Such a measuring device will be described with reference to the drawings.
FIG. 7 is a configuration diagram showing an example of a conventional measurement device.
[0004]
The measurement unit 1 converts a plurality of analog input signals including a measurement signal from the control target 101 into a digital signal.
The signal generator 2 generates an operation signal for operating the heater 102 of the control target 101. As such a signal generation unit 2, a signal generation unit constituted by a microprocessor, a D / A converter, a memory, or the like is used.
The arithmetic processing unit 3 performs various arithmetic processes related to the measurement such as addition, subtraction, multiplication, division, square root, and averaging on the digital signal output from the measurement unit 1, and is configured by, for example, a processor.
[0005]
The parameter input unit 4 includes a program pattern for operating the controlled object 101, a measurement condition of the measurement unit, a calculation condition of the calculation processing unit, a signal generation condition of the signal generation unit, a display condition of the display unit, and the like. Has a function for inputting the parameters of
The memory 5 stores a program pattern, a digital signal output from the measurement unit 1, and an arithmetic processing result of the arithmetic processing unit 3.
[0006]
The display unit 20 includes a grid display data creation unit 21 that draws a grid on a screen, a graph display data creation unit 22 that graphically displays a program pattern and a measurement result, and a graphic memory 23 that stores display data created by these. It displays information related to the measurement signal of the control target, information of the operation signal related to the operation of the control target, and the like graphically, and uses a CRT, LCD, or the like as a display (not shown). The exchange of data in the device is performed via a bus 7.
Each data creation unit is a function realized by, for example, a processor.
[0007]
The operation of the thus configured device will be described.
First, the user operates the parameter input unit 4 while watching the parameter display on the display unit 20 to input and set the above-described predetermined parameters to each unit and set a program pattern for causing the program operation. Some program patterns, for example, change the set temperature of a control target such as a thermostat with the passage of time.
[0008]
When the operation is started, the measurement unit 1 converts a plurality of analog input signals including the measurement signal output from the temperature sensor 103 of the control target 101 into digital signals according to the measurement conditions, and stores the converted digital signals in the memory 5.
On the other hand, the arithmetic processing unit 3 controls the operation of the entire apparatus, performs predetermined arithmetic processing on the digital signal stored in the memory 5 according to the arithmetic conditions as necessary, and stores the arithmetic result in the memory 5 again. .
[0009]
Then, the signal generation unit 2 controls the heater 102 of the control target 101 according to a measurement signal output from the temperature sensor 103 of the control target 101 applied via the measurement unit 1 or a program pattern set via the parameter input unit 4. According to signal generation conditions such as a temperature setting signal and a PID calculation parameter, an operation signal for controlling heating of the heater 102 is generated and the heater 102 is operated.
[0010]
The program pattern, the temperature setting signal set in the signal generator 2 and the operation signal calculated and output from the signal generator 2 are sequentially stored in the memory 5 as needed.
[0011]
The waveform display unit 20 uses the various signal data stored in the memory 5 to create display data for graphically displaying a program pattern, a measurement signal, and the like by a grid display data creation unit 21 and a graph display data creation unit 22, It is stored in the graphic memory 23 and displayed on the screen to form a program operation screen. In addition to the various parameters and operation menus described above, a trend waveform and a bar graph related to a measurement signal of the control target 101 and an operation signal related to the operation of the control target 101 are displayed in accordance with the set display conditions. It can also be displayed.
[0012]
FIG. 8 is a flowchart showing an example of a conventional display process.
The display processing will be described according to the procedure of this flowchart.
(S1) Data is assigned to a drawing variable from a table having information such as a waveform drawing position by selecting a display mode such as a vertical display or a horizontal display.
(S2) On the left side (past) from the cursor position, a trend graph of the measurement result is drawn using the data acquired by the measurement, and on the right side (future) from the cursor position, a program pattern is drawn because the program pattern is drawn. Calculate the number of drawn dots and the cursor display position.
(S3) Grid display data is stored in the grid drawing area of the graphic memory.
(S4) The graph display data on the right side of the cursor from the measurement signal and the data of the executed program pattern is stored in the graph drawing area of the graphic memory.
(S5) The graph display data of the non-effective program pattern on the right side of the cursor is stored in the graph drawing area of the graphic memory.
(S6) The grid display data and the graph display data are combined and displayed on the display screen.
[0013]
FIG. 9 shows a display example in a conventional program operation.
On the display screen 90, a grid is formed in which the horizontal axis indicates time and the vertical axis indicates the temperature of the control target.
[0014]
Pattern A and pattern B indicate program patterns of each control target.
The position of the cursor 91 indicates the present. On the display, the left side of the cursor 91 indicates a program pattern executed in the past, and the right side indicates a program pattern to be executed in the future.
[0015]
According to such a conventional technique, when a program operation is performed, a program pattern is displayed and a trend of a measurement signal is graphically displayed.
[0016]
Further, in the program operation, a program event generated in each segment of the program is stored. The program event is a warning function (hereinafter, referred to as a PV event) or a function of notifying the progress of the program (hereinafter, referred to as a time event). The PV event is an alarm function for notifying an abnormality that has occurred during the operation of the program. For example, for each segment (process) of the program, a measurement value and an upper limit and a lower limit of a deviation thereof are set in advance, and the segment is set. This is a function to issue an alarm for a predetermined time when the value deviates from the set value during execution.
[0017]
In addition, the time event is to output a signal to the outside for a predetermined time after a predetermined time has elapsed from the switching of the program segment, and by detecting this signal, which segment of the program is being executed. That is, it is possible to recognize how much time has elapsed since switching to the segment.
[0018]
[Patent Document 1]
Japanese Patent No. 2624125
[Problems to be solved by the invention]
However, conventionally, in the program operation screen, since only the profile in which the program pattern is displayed in the form of a graph is displayed, the operation state of the program event preset for the program pattern cannot be monitored simultaneously with the profile. was there.
[0020]
The present invention has been made in order to solve the above-described problems, and has a display area for displaying a program pattern and a display area for displaying the occurrence time of a program event on the same screen, and simultaneously displaying the same time series. Accordingly, it is an object of the present invention to provide a measuring device capable of easily monitoring program operation.
[0021]
[Means for Solving the Problems]
The present invention is a measuring device having the following configuration.
[0022]
(1) A measuring device for operating the control target and displaying the measurement result based on a program pattern set according to the control operation process and a measurement result input from the control target,
A graph display data creation unit that creates at least one display data of the program pattern and the measurement result;
An event display data creation unit that creates at least one display data of event occurrence information generated during the control operation and event occurrence information to be generated in the future based on a preset event occurrence condition;
Has,
A measuring apparatus for displaying at least one of the program pattern and the measurement result and the event occurrence information in the same time series.
[0023]
(2) The measurement apparatus according to (1), wherein a plurality of the program patterns are set, and a plurality of the event occurrence conditions are set for each step of each program pattern.
[0024]
(3) The measuring device according to (1) or (2), wherein a plurality of the set program patterns are grouped, and the grouped program patterns and event occurrence information are displayed in the same time series. .
[0025]
(4) The measurement device according to any one of (1) to (3), wherein a name is added to the event occurrence information, and the name is displayed when the event occurrence information is displayed.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a configuration diagram showing one embodiment of the present invention.
In FIG. 1, the same components as those described above are denoted by the same reference numerals, and the description of the same components will be omitted.
[0027]
1 differs from the conventional example in the configuration of the display unit 10. FIG.
The display unit 10 includes a grid display data creation unit 11, a graph display data creation unit 12, an event display data creation unit 14, and a graphic memory 13.
The grid display data creation unit 11 creates grid display data to display a grid on a screen.
The graph display data creation unit 12 creates graph display data for graphing and displaying the setting data of the program pattern, and creates graph display data for trend display using the measurement result output from the measurement unit 1. I do.
[0028]
The event display data creation unit 14 determines, in a segment (process) of the program pattern, a location where a PV event or a time event that occurs when a preset event occurrence condition is satisfied or a location where a time event to be generated is set. In this case, event display data for displaying the same time series with the graph display of the program pattern and the time axis is created.
[0029]
When setting an event occurrence condition from the parameter input unit 4, a predetermined name is added, and event display data is created and display data with that name is created.
[0030]
These display data are stored in a pre-allocated area of the graphic memory 13. After that, display data is created by synthesizing each of the above display data using the other area of the graphic memory 13. This display data is displayed on the screen of a display (not shown).
[0031]
Thereby, the graph display of the program pattern or the measurement result and the event occurrence information can be displayed in the same time series on one screen.
The area of the graphic memory 13 may be allocated in one memory, or a plurality of memories may be prepared and allocated so as to store respective display data.
[0032]
The above functions will be described with reference to a flowchart.
FIG. 2 is a flowchart showing the processing steps of the present invention. The description will be made according to the steps in the flowchart.
(ST1) Graph display data is created based on the data of the program pattern and the measurement result, and stored in the graph drawing area in the display combined drawing area of the graphic memory.
(ST2) Event display data is created based on the setting data of the event occurrence condition and the event occurrence information, and stored in the event drawing area in the display combined drawing area of the graphic memory.
(ST3) Each display data stored in the display composition drawing area of the graphic memory is displayed on the screen, and the process ends.
[0033]
FIG. 3 is a flowchart illustrating the details of the process ST1 in FIG. A description will be given according to the steps of this flowchart.
(ST11) By selecting a display mode such as vertical display or horizontal display, data is allocated to a drawing variable from a table having information such as a waveform drawing position.
(ST12) On the left (past) from the cursor position, a trend graph of the measurement result is drawn using the data acquired by the measurement, and on the right (future) from the cursor position, a program pattern is drawn to draw a program pattern. Calculate the number of drawn dots and the cursor display position.
(ST13) Grid display data is stored in the grid drawing area of the graphic memory.
(ST14) Graph display data for displaying the measurement result and the executed program pattern to the left (past) of the acquired measurement result in the graph drawing area of the graphic memory from the acquired measurement result is stored.
(ST15) The graph display data of the ineffective program pattern to the right (future) of the cursor is stored in the graph drawing area of the graphic memory.
(ST16) The grid display data and the graph display data are combined and stored in the display combined drawing area of the graphic memory.
Thereafter, the aforementioned step ST2 is executed.
[0034]
FIG. 4 is a flowchart illustrating details of step ST2 in FIG. A description will be given according to the steps of this flowchart.
(ST21) Data is allocated to a drawing variable from a table having information such as an event drawing position by selecting a display mode such as a vertical display or a horizontal display.
(ST22) On the left (past) from the cursor position, a trend graph of the measurement result is drawn using the data acquired by the measurement, and on the right (future) from the cursor position, the program pattern is drawn because the program pattern is drawn. Calculate the number of drawn dots and the cursor display position.
(ST23) Grid display data is stored in the grid drawing area of the graphic memory.
(ST24) Event display data for displaying past event occurrence information on the left side of the cursor is stored in the event drawing area of the graphic memory.
(ST25) Event display data for displaying event occurrence information to be generated to the right of the cursor is stored in the event drawing area of the graphic memory.
(ST26) The grid display data and the event display data are combined and stored in the display combined drawing area of the graphic memory.
Thereafter, the above-described step ST3 is executed, and the process ends.
Thereby, the display as shown in FIG. 5 can be realized.
[0035]
FIG. 5 is a diagram showing one embodiment of the display in the present invention.
In FIG. 5, a display screen 50 is divided into a graph display area 52 and an event display area 53 and displayed simultaneously on the same time axis. By setting the time axis, the cursor 51 is displayed at the current position.
[0036]
The graph display area 52 displays a program pattern as shown by a broken line in the grid display by the grid display unit described above and a graph display of the measurement result on the left side (past) from the cursor by the graph display unit. I do.
[0037]
The event display area 52 displays the event that occurred in the past and the portion corresponding to the time of the event to be generated in the past, as indicated by a broken line. In FIG. 5, event occurrence information is displayed for all of the plurality of control targets.
FIG. 6 shows a case where a plurality of control targets are grouped and one of the grouped objects is displayed.
[0038]
FIG. 6 is a diagram showing another embodiment of the display according to the present invention.
As in FIG. 6, the display screen 60 is divided into a graph display area 62 and an event display area 63 and displayed simultaneously on the same time axis. By setting the time axis, the cursor 61 is displayed at the current position. In the graph display area 62, the grid display by the grid display data creation unit described above and the graph display data creation unit display the program patterns in groups as indicated by broken lines in a graph, ) To display the measurement results in a graph. The event display area 62 displays, for the grouped control targets, a mark indicating that an event that has occurred in the past or a portion corresponding to the time of the event to be generated is painted out in black.
[0039]
In this case, the name display area 64 displays the names of “TE01”, “TE02”, and “TE03” added to the time event, and the names of “PE01” and “PE02” added to the PV event. Is done.
[0040]
As described above, it is possible to provide a display area for displaying the program pattern and a display area for displaying the occurrence time of the program event on the same screen, and the program operation can be easily monitored by simultaneously displaying the same time series.
[0041]
In the present invention, the event operation of the program pattern is displayed in the divided display area.However, the state and the like of the peripheral device operating simultaneously with the program operation are taken into the device as an external input signal and displayed. The operation status of the entire apparatus can be monitored simultaneously with the profile.
[0042]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0043]
According to the first aspect of the present invention, it is possible to provide a display area for displaying a program pattern and a display area for displaying an occurrence time of a program event on the same screen. Operation can be easily monitored.
[0044]
According to the second aspect of the present invention, when a plurality of program operations are being performed, the state of the control target can be detected, and in which step the operation is in can be recognized through the screen.
[0045]
According to the third aspect of the present invention, when there are a plurality of control targets, by displaying them in groups, the details of the driving status can be displayed on the screen.
[0046]
According to the fourth aspect of the present invention, the event occurrence information displayed can be specified by adding a name to an event occurring during driving or an event occurring in the future and displaying it on the driving display screen. .
[0047]
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing one embodiment of the present invention.
FIG. 2 is a flowchart showing processing steps of the present invention.
FIG. 3 is a flowchart illustrating details of a process ST1 in FIG. 2;
FIG. 4 is a flowchart illustrating details of a process ST2 in FIG. 2;
FIG. 5 is a diagram showing one embodiment of a display according to the present invention.
FIG. 6 is a diagram showing another embodiment of the display according to the present invention.
FIG. 7 is a configuration diagram showing an example of a conventional measurement device.
FIG. 8 is a flowchart showing an example of a conventional display process.
FIG. 9 shows a display example in a conventional program operation.
[Explanation of symbols]
Reference Signs List 1 Measurement unit 2 Signal generation unit 3 Operation processing unit 4 Parameter input unit 5 Memory 10 Display unit 11 Grid display data creation unit 12 Graph display data creation unit 13 Graphic memory 14 Event display data creation unit

Claims (4)

In a measuring device that displays the measurement result while operating the control target based on the program pattern set according to the process of the control operation and the measurement result input from the control target,
A graph display data creation unit that creates at least one display data of the program pattern and the measurement result;
An event display data creation unit that creates at least one display data of event occurrence information generated during the control operation and event occurrence information to be generated in the future based on a preset event occurrence condition;
Has,
A measuring apparatus for displaying at least one of the program pattern and the measurement result and the event occurrence information in the same time series. 2. The measuring apparatus according to claim 1, wherein a plurality of the program patterns are set, and a plurality of the event occurrence conditions are set for each process of each program pattern. 3. The measuring apparatus according to claim 1, wherein the plurality of set program patterns are grouped, and the grouped program patterns and event occurrence information are displayed in the same time series. 4. The measuring device according to claim 1, wherein a name is added to the event occurrence information, and the name is displayed when the event occurrence information is displayed.

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