JPH06301500A - Interactive curve display device - Google Patents

Abstract

PURPOSE:To provide an interactive curve display device which moves a cursor on the curve data shown on a display screen through the operation of an operator and displays the plant data at an optional point in a digital form. CONSTITUTION:An interactive curve display device consists of an input controller 2, a data collecting part 3 which collects the output data of the controller 2, a data file 4 which stores the collected data, a curve data processing part 5 which converts the collected data into the curve display use data, a display controller 6 which displays the outputted curve data, and a display device 8. Furthermore a cursor controller processing part 19 is added to convert by the operational quantity of a cursor controller 18 to a data unit operational quantity, along with a data retrieval processing part 17 which rertieves the data within the file 4 in response to the output of the part 19 and outputs the data unit operational quantity to the part 5 and displays the cursor position on the device 8 and a hard copy controller 7 which trancribes the display data on the device 8, and a hard copy device 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curve display device for continuously displaying a process amount in a plant from the past to the present, and further to the future, which can be arbitrarily set in the past by an interactive operation with an operator. The present invention relates to an interactive curve display device for searching and displaying detailed data of the above.

[0002]

2. Description of the Related Art In a conventional curve display device, as shown in the block diagram of FIG. 3, a main part is computerized, and process data input from a plant 1 is data via an input control device 2. The data is stored in the data files 4 and 4 by the collection unit 3 at regular intervals.

The data file 4 has a cyclic organization, in which new data is input and at the same time the oldest data is deleted, and sampling data for the past n seconds from the present is always saved.

The curve data processing unit 5 converts the process data of the data file 4 into curve display data and outputs the curve display data to the CRT controller 6, and the curve display data output to the CRT controller 6 is stored in the CRT display device 8.
Is displayed in.

When there is a hard copy request, the curve display data stored in the CRT controller 6 is output to the hard copy control device 7 constituting the hard copy means, and printed out by the hard copy device 9. It

The display screen diagram of FIG.
It is an example in which two plant data displayed on the display screen 10 of the T display device 8 are displayed in a curve. The area on the left side of the display screen 10 is a history display area for the past n seconds from the time when the graph currently output to the CRT display device 8 is requested.
Eleven.

The area on the right side of the display screen 10 is a trend display area 12, and the display curves 13 and 14 are extended to the right as time elapses. It should be noted that the example of FIG. 4 shows that approximately 30 seconds have elapsed since the graph was displayed.

[0008]

In the screen display mode as shown in FIG. 4, in order to recognize the numerical values of the past data by the display curves 13 and 14, the scale 15 of the vertical axis on the left end of the screen is used as a general rule. However, there is a problem that the reading error increases as the search position for the display curves 13 and 14 gradually moves to the right side of the screen as the reference time axis 16 moves.

As a countermeasure against this, a CRT display device 8
It is conceivable to draw an auxiliary line each time on the screen and read the numerical values from the analog display curves 13 and 14, but as the work becomes complicated and the number of display curves on the screen increases, the display screen 10 Due to congestion, the operator's ability to recognize the display curves 13 and 14 (process amount) decreases.

Further, it has been a problem that utilizing the digital function, which is the greatest advantage of this curve display system, to make it possible to confirm an accurate numerical value is not fully utilized.

An object of the present invention is to provide an interactive curve display device in which a cursor is moved on the curve data displayed on the display screen by an operator's operation and the plant data searched by the cursor is digitally displayed. Especially.

[0012]

In order to achieve the above object, the present invention provides an input control device for inputting a process amount from a plant, and data collection for collecting data obtained from the input control device at each sampling cycle. And a cyclic data file for storing the data collected by the data collection unit.

A curve data processing unit for converting the plant data of the data file into curve display data,
A display controller that displays the curve data output from the curve data processing unit and a display device that displays the collected data by the display controller are provided.

Further, a cursor controller used for interactive operation, a cursor controller processing unit for converting the operation amount into a data unit operation amount, and searching data in the data file according to the data unit operation amount, A data search processing unit that outputs the data unit operation amount from the cursor controller processing unit to the curve data processing unit together with the retrieved data to display the operation amount of the cursor on the display device, and the display data of the display device is transferred. It is characterized by comprising a hard copy means for performing.

[0015]

The process data input from the plant is stored in the data file by the data collection unit via the input control device at regular intervals. This plant data is converted into curve display data by the curve data processing unit and output to the display controller, and this curve display data is displayed as curve data by the display device.

When the operator requests detailed data of an arbitrary point with respect to the analog display curve displayed on the display device, the cursor controller is operated. At this time, the operation amount generated by the cursor controller is converted into an operation amount for each data unit by the cursor controller processing unit and output to the data search processing unit.

Further, the data search processing unit searches the plant data stored in the data file according to the data unit operation amount, and inputs the searched plant data.

The plant data transferred to the data search processing unit is output to the display controller through the curve data processing unit and is digitally displayed on the display device together with the cursor operation amount. On the other hand, the data search processing unit outputs the search position as curve data to the display controller through the curve data processing unit.

Thus, the operator can operate the cursor controller to observe the cursor displayed on the display device and retrieve the plant data stored in the data file corresponding to the operation amount. That is, the operator can recognize the detailed data at any point on the screen while confirming the display curve and the search position.

The plant data displayed on the display device can be printed out as a hard copy by the hard copy means.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. It should be noted that the same components as those of the above-described conventional technique are denoted by the same reference numerals and detailed description thereof will be omitted. As shown in the block diagram of FIG. 1, an input control device 2 for inputting process data from a plant 1 is connected via a data collection unit 3 to cyclically organized data files 4 and 4.

The data file 4 is connected to a curve data processing unit 5 stored in the data file 4 for converting plant data into curve display data, and a data search processing unit 17, and the curve data processing unit is connected to the curve data processing unit. A CRT controller 6 which is a display controller for controlling the output of the curve display data and a CRT display device 8 which is a display device for displaying the curve display data of the output are connected to 5.

A cursor controller 18, which is a means for interacting with an operator, is connected to the data search processing unit 17 via a cursor controller processing unit 19 which transmits a data request signal from the cursor controller 18 to the data search processing unit 17. It is connected.

Further, the CRT controller 6 includes:
A hard copy control device 7 and a hard copy device 9 which constitute a hard copy means for printing out the stored curve display data when there is a hard copy request are connected. The main part of the present invention can be easily configured by computerization.

Next, the operation of this structure will be described. The process data input from the plant 1 is stored in the data file 4 by the data collection unit 3 via the input control device 2 at regular intervals.

The plant data stored in the data file 4 is output to the curve data processing unit 5, converted into curve display data, and output to the display controller 6.
Further, this curve display data is displayed on the display screen 20 shown in FIG.
Is displayed as curve data 13 and 14 on the display device 8.

On the other hand, when the operator requests detailed data of a desired point, the cursor controller 18 is operated to move the cursor 21 to a desired position. The operation command generated by the operation of the cursor controller 18 is converted into an operation amount for each data unit by the cursor controller processing unit 19 and output to the data search processing unit 17.

The data search processing unit 17 searches the plant data stored in the data file 4 according to the data unit operation amount and inputs the searched plant data. Further, the plant data transferred to the data search processing unit 17 is transferred to the CRT through the curve data processing unit 5.
It is output to the controller 6 and digitally displayed as plant data 22 and 23 on the CRT display device 8.

On the other hand, the data search processing section 17 outputs the search point as curve data to the CRT controller 6 through the curve data processing section 5. This allows the operator to operate the cursor controller 18 to
By observing the cursor 21 displayed on the display device 8, it is possible to retrieve the plant data stored in the data file 4 according to the manipulated variable.

The display screen 20 shown in FIG. 2 is an example of the curves 13 and 14 and the cursor 21 displayed on the CRT display device 8 and the plant data 22 and 23 displayed on the screen of the CRT display device 8. At the position where the cursor 21 intersects the display curves 13 and 14 of the above, the plant data 22 and
23 are displayed as digital values. Also cursor 21
This position is displayed as the time in the lower part of.

Therefore, the operator operates the cursor controller 18 to move the cursor 21 to a desired position, so that the plant data 22 and 23 at an arbitrary position on the display screen 20 can be grasped easily and accurately. it can. It should be noted that, in the above-mentioned one embodiment, the detailed data search on the two display curves 13 and 14 is taken as an example, but it goes without saying that the detailed display of the plant data can be easily carried out even in the case of displaying a plurality of curves.

[0032]

As described above, according to the present invention, the curve of the plant data displayed on the display device and the plant data at this arbitrary position can be easily confirmed by a digital value, not by the operator's visual observation. Therefore, the plant status can be grasped accurately and easily, which has an effect of reducing operational safety and operator's burden.

Recording can be performed by hard copy output as in the conventional case, and by securing a sufficient capacity of the data file, it is possible to replace the enormous number of recorders installed in the main control room. There is an effect that can be done.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of an interactive curve display device according to an embodiment of the present invention.

FIG. 2 is a display screen diagram of an embodiment according to the present invention.

FIG. 3 is a block configuration diagram of a conventional curve display device.

FIG. 4 is a display screen diagram of a conventional curve display device.

[Explanation of symbols]

1 ... plant, 2 ... input control device, 3 ... data collection unit,
4 ... Data file, 5 ... Curve data processing unit, 6 ... CR
T controller, 7 ... Hard copy control device, 8 ... CR
T display device, 9 ... hard copy device, 10, 20 ... display screen, 11 ... left area of graph, 12 ... right area of graph, 1
3, 14… Display curve, 15… Scale, 16… Reference time axis, 17
… Data search processor, 18… Cursor controller, 19…
Cursor controller processing unit, 21 ... Cursor, 22, 23 ...
Plant data, 24 ... Search time.

Claims (1)

[Claims] 1. An input control device for inputting a process amount from a plant, a data collection unit for collecting data obtained from this input control device at each sampling cycle, and data stored by this data collection unit are stored. A cyclic data file, a curve data processing unit that converts the data in the data file into curve display data, a display controller that displays the curve data output from the curve data processing unit, and the collection by the display controller A display device for displaying the data, a cursor controller used for interactive operation, a cursor controller processing unit for converting the operation amount into a data unit operation amount, and a search for data in the data file according to the data unit operation amount Then, together with this retrieved data, A dialogue comprising: a data search processing unit for outputting a data unit operation amount to a curve data processing unit to display a cursor operation amount on the display device; and a hard copy means for transferring display data of the display device. Type curve display device.