JP3719716B2 - Screen display device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a screen display device used for a monitoring console (operator console) in a process control device of an industrial plant.
[0002]
[Prior art]
Before a so-called panelless instrumentation control system using a display device such as a CRT was introduced, the control panel was equipped with a large graphic panel representing the process flow of the entire plant, and the plant was monitored while monitoring this graphic panel. And driving operation was performed.
[0003]
In this panel instrumentation, take notes on plant operation, failure inspection information for various equipment, work information for periodic inspection, etc., and paste the memo paper in the vicinity of the corresponding process flow or equipment on the graphic panel. Was operating. Alternatively, various information is directly written as a memo on the process flow. With this memo writing, the operator can confirm notes and the like during plant operation, and the same information can be transmitted to other operators.
[0004]
Recently, a monitoring control system using a display device such as a CRT has been developed. In this supervisory control system, the process flow screen of the entire plant is divided into a plurality of base screens and stored in a memory so that an operator can select a desired base screen and display it on the CRT screen. It has become. The operator displays a desired base screen on the CRT to monitor and operate the plant.
[0005]
However, if the process flow screen of the plant is divided and displayed on the CRT, various information such as the above-mentioned precautions, failure inspection information, work information, etc. are written and pasted and used for plant operation monitoring. It was inconvenient because I could not.
[0006]
[Problems to be solved by the invention]
As described above, when a display device such as a CRT is used as the display device of the plant control device, there is a disadvantage that it is not possible to paste and use memos of various information on the process flow screen of the plant.
[0007]
The present invention has been made in view of the above circumstances, and can easily write arbitrary information on the base screen displayed on the CRT as if it were a memo, and has an operation monitoring support function for the operator. An object is to provide a screen display device that can be improved.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a screen display device according to the present invention corresponding to claim 1 stores in advance one or more types of base screens in a base screen memory, and reads the selected base screen from the base screen memory. Provided with a position sensor that detects a position based on an orthogonal XY coordinate system, and converts memo information to be written at a desired position on the base screen into coordinate information corresponding to the base screen. Combining the memo entry means, the base screen read from the base screen memory and the coordinate information input from the memo entry means or the window screen in which the memo information is written to the base screen, A synthesizer that outputs a screen in which the memo information or the window screen is displayed at a desired position on a base screen ;
The instrument or device within the memo range is searched from the coordinate information of the memo information displayed overlaid on the base screen and the coordinate information of the device symbol in the base screen, and operations on the searched instrument or device are prohibited. Let
[0009]
The screen display device of the present invention corresponding to claim 2 stores symbol information necessary for plant operation monitoring in a storage unit in advance, and extracts symbol information of the display screen from the storage unit when a screen display request is made. An operation unit that is provided separately from the display unit, displays the same display screen as the display unit, and accepts writing to the display screen. A position sensor for detecting a position based on an orthogonal XY coordinate system, and input means for converting and inputting the writing information received by the operation unit into coordinate information corresponding to a display screen on the display unit; A composite image in which the write information input from the input means and the symbol information of the display screen displayed on the display unit are combined and the write information is drawn in the display screen Comprising a synthesizing means for generating information, the coordinate information of the write information to be displayed superimposed on the display screen, from the coordinate information of the symbol information of the display screen, to find an instrument or device in the write range, Prohibit operations on searched instruments or devices.
[0010]
[Action]
In the screen display device according to the first aspect of the present invention, memo information to be written at a desired position on an arbitrary base screen is converted into coordinate information corresponding to the base screen by the memo entry means and inputted. Then, the above-mentioned base screen and the memo information are synthesized by the synthesizing means to create a screen with memo in which the memo information is written at a desired position on the base screen, and the screen with memo is output and displayed.
[0011]
Also, the memo information to be written at the desired position on the base screen is written on the window screen, and the window screen is synthesized with the base screen by the synthesizing means to create the window screen in which the memo information is written at the desired position on the base screen. Is done.
[0012]
In the screen display device according to the second aspect of the present invention, the monitor screen for which a screen display request has been made is displayed on the display unit, and the same monitor screen is also displayed on the operation unit. When memo information or the like is written at a predetermined position on the display screen by the operation unit, the written information is converted into coordinate information corresponding to the display screen on the display unit by the input means. The writing means and the symbol information on the display screen of the display unit are combined by the combining means, and combined screen information in which the writing information is drawn in the display screen is generated.
[0013]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows functional blocks of the screen display apparatus according to the first embodiment of the present invention, and FIG. 2 shows the appearance of the screen display apparatus.
In the screen display device of the present embodiment, each base screen obtained by dividing a plant process flow screen into a plurality of parts is stored in the base screen memory 10 in advance.
[0014]
The display screen 11 for displaying an arbitrary base screen read from the base screen memory 10 is provided with two position sensors 12 and 13 orthogonal to the frame portion. The position sensors 12 and 13 detect the position of a memo pen 14 for drawing memo information on the display screen 11 or other objects (such as an operator's finger) based on an orthogonal XY coordinate system.
[0015]
The coordinate position signals output from the position sensors 12 and 13 are given to the first driver 16 via the terminal 15a of the touch mode selection switch 15, or the second position via the terminal 15b of the touch mode selection switch 15. It is given to the driver 17.
[0016]
The touch mode selection switch 15 is a switch for selecting a normal touch operation performed on the display screen 11 for plant operation monitoring and operation, and a memo information input operation using the memo pen 14. The touch mode selection switch 15 selects the memo information input operation by the memo pen 14 when the terminal 15a side is selected, and selects the touch operation in the normal operation when the terminal 15b side is selected.
[0017]
The first driver 16 converts the coordinate position signal input via the touch mode selection switch 15 into address information of the memo screen memory 19 and writes it to the memo screen memory 19 via the terminal 18 a of the pen mode switch 18. It is crowded. The position sensors 12, 13 and the first driver 16 constitute a memo entry means.
[0018]
The pen mode switch 18 is a switch for selecting writing and erasing of memo information. When the memo information is switched to the terminal 18a side, the memo information is written to the memo screen memory 19 and switched to the terminal 19b side. If so, the memo information already written on the currently selected memo screen is erased.
[0019]
The memo screen memory 18 stores a memo screen composed of memo information drawn on a predetermined base screen on the display screen 11 in association with the base screen of the base screen memory 10.
Further, the second driver 17 inputs a coordinate position signal input via the touch mode selection switch 15 to the screen controller 20.
[0020]
The screen controller 20 has a central function of screen control in this screen display device. When the touch mode selection switch 15 is switched to the terminal 15a side, the screen controller 20 combines the two screens by operating the base screen and the memo screen. That is, a screen selection signal S1 is given to each of the base screen memory 10 and the memo screen memory 19 to select a base screen and a memo screen corresponding to each other, and the common memory 21 synthesizes (superimposes) the converter 22. Via the display screen 11. When the touch mode selection switch 15 is switched to the terminal 15b side, the coordinate position signal input via the second driver 17 is recognized as a touch operation signal input from the display screen 11 to the base screen. Various commands indicated by the operation signal are output to the base screen memory 10. By this command, for example, the memory content of variable data stored in the base screen memory 10 is rewritten, and processing such as color change of the touched portion is performed. Further, the screen controller 20 rewrites the data in the instrument tag file 23 according to the command indicated by the operation signal and outputs it to the process controller as a control signal for actuators such as valves and pumps. The screen controller 20, the memo screen memory 19, the common memory 21, etc. constitute composing means.
[0021]
Further, the memo screen memory 19 is provided with a reset switch 24. By turning on the reset switch 24, the memo writing written in the memo screen memory 19 via the terminal 18a of the pen mode switch 18 is performed. The memo display on the way can be deleted.
[0022]
In this embodiment, a pen function controller 25 and a tag search controller 26 are further provided. The pen function controller 25 has a function of setting the display color of the memo information displayed on the base screen to an arbitrary color. Further, the tag search controller 26 uses the coordinate information of the devices and device symbols (tags) in the base screen stored in the base screen memory 10 and the memo coordinate information stored in the memo screen memory 19 within the memo range. Search for instruments or equipment. Then, it is possible to issue an operation prohibiting signal for prohibiting the operation of the searched instrument or device with respect to the instrument tag file 23.
[0023]
In the present embodiment configured as described above, the touch mode selection switch 15 is switched to the terminal 15a side, and the pen mode switch 18 is switched to the terminal 18a side, so that any base stored in the base screen memory 10 can be obtained. Memo information can be written to the screen.
[0024]
For example, memo information is drawn at a desired position on the base screen by the memo pen 14 in a state where the base screen is displayed on the display screen 11. At this time, the position coordinates of the memo pen 14 are detected by the position sensors 12 and 13. This detection signal is input as a coordinate position signal to the first driver 16 via the touch mode selection switch 15, converted into address information there, and stored in the memo screen memory 19. In this way, memo coordinate information (memo screen) for an arbitrary base screen is stored in the memo screen memory 19.
[0025]
Further, when memo information already written on the memo screen is erased during memo writing, the erasing operation is executed by turning on the reset switch 24. Further, when erasing the contents of the already registered memo screen, the memo screen is erased by switching the pen mode switch 18 to the terminal 18b side and giving the screen selection signal S1 from the screen controller 20. . As a result, new memo information can be written again on a certain base screen.
[0026]
Next, when a display request for a certain base screen is given to the screen controller 20, a screen selection signal S1 is output from the screen controller 20 to the base screen memory 10 and the memo screen memory 19 as shown in FIG. Then, the base screen A and the corresponding memo screen B that are requested are respectively selected. The selected both screens are synthesized in the common memory 21 and displayed on the display screen 11. As a result, the screen C with memo in which the memo information R is written at a desired position on the base screen is displayed.
[0027]
In this embodiment, the memo information written on the base screen is set to an arbitrary color by the memo function controller 25. For example, as shown in FIG. 3, a device that is prohibited from operating due to a failure or the like is written down with a surrounding line R. In such a case, an instruction is given to display the surrounding line R in red and display other memo information in a color other than red. When there is a screen display request, the coordinate information of the instrument and device symbol in the base screen requested to be displayed and the memo coordinate information of the corresponding memo screen are taken into the tag search controller 26 and written in red. The instrument or device in the enclosed enclosure R is extracted. Then, an operation prohibition signal for prohibiting the operation of the extracted instrument or device is output to the instrument tag file 23. The instrument tag file 23 is output to the process controller so as to prohibit the operation of the instrument or device for which the operation prohibition signal has been issued.
[0028]
As described above, according to the present embodiment, any information can be easily added to the base screen for monitoring the operation of the plant displayed on a display device such as a CRT, thereby preventing an erroneous operation. It is possible to improve the operation monitoring support function for the operator.
[0029]
Further, by separating the display data processing system of the memo screen from the base screen system that is the main body of process operation monitoring, the system configuration can be such that the display data processing system of the memo screen does not affect the base screen system. .
Furthermore, not only the memo display but also the operation of the device at the memo location can be prohibited, so that safety can be improved.
Next, a second embodiment of the present invention will be described with reference to FIG. Parts having the same functions as those of the first embodiment shown in FIG.
[0030]
In the screen display device of this embodiment, memo information corresponding to each base screen is stored in the window screen memory 30. Then, a predetermined window screen is selected by a window screen selection signal S2 given from the screen controller 31 to the window screen control unit 32. A screen selection signal is given from the screen controller 31 to the base screen memory 10 to select a predetermined base screen. The base screen and window screen selected in this way are combined in the common memory 33, and a window screen as memo information is displayed at a desired position on the base screen.
[0031]
In this embodiment, a mask mode or overlap mode command is input from the display mode switch 34. The mask mode is selected by selecting the terminal 34a side with the display mode switch 34, and the overlap mode is selected by selecting the terminal 34b side. In the mask mode, the window screen is displayed with priority over the base screen, and the portion of the base screen that overlaps the window screen is not displayed. In the overlap mode, a window screen with a transparent background is displayed on the base screen in the same manner as in the first embodiment.
[0032]
The screen with a memo synthesized in either the mask mode or the overlap mode is displayed on the display screen 11 via the converter 22 as in the first embodiment.
[0033]
Next, the operation of this embodiment will be described. Since the operation until registering the memo information in the window screen memory 30 is the same as that in the first embodiment, the subsequent operation will be described.
[0034]
When an arbitrary window screen is selected by a touch operation on the display screen 11, a window screen selection signal S 2 is given from the screen controller 31 to the window screen control unit 32. The window screen selected by the window screen selection signal S2 is read from the window screen memory 30, and is overlaid on the base screen by either the mask mode or the overlap mode. That is, in this embodiment, an arbitrary window screen can be synthesized with a certain base screen.
[0035]
For example, as shown in FIG. 5, the administrator writes a message from one display device 40-n to the operator on the window screen by connecting a plurality of the display devices of FIG. 4 via the bus line 41. Thus, there is an advantage that the operator's message can be seen by the operator in the other display device 40-1 selecting the same window screen.
[0036]
In each of the above-described embodiments, the memo information is input using the position sensors 12 and 13 provided on the display screen 11 on which the base screen is displayed, but the base is not required to be integrated with the display screen 11. If memo coordinate information corresponding to the screen can be obtained, it may be input by another method.
Next, a third embodiment of the present invention will be described.
[0037]
FIG. 6 shows functional blocks of the plant monitoring apparatus according to the third embodiment. In the plant monitoring apparatus of the present embodiment, symbol information representing process equipment, piping, and the like as symbols is stored in the storage unit 50, and the fixed information processing unit 51 and the variable information processing unit 52 receive the screen display request and The symbol information of the display screen is extracted from the storage unit 50, and the symbol information is sent to the display processing unit 53. The display processing unit 53 is configured to synthesize the symbol information with a monitoring screen in response to the screen display request and display it on the display unit 54 composed of a CRT.
[0038]
Further, the variable information processing unit 52 can extract the symbol information of the display screen and then perform a process for always taking the process signal from the variable information input unit 55 and displaying the symbol on the display unit 54.
[0039]
In addition, as shown in FIG. 7, an operation unit 56 is provided on a console arranged in the vicinity of the display unit 54. The operation unit 56 has a permission switch 57 for enabling the additional information, an erasing switch 58 for erasing the writing information, and a prohibiting switch 59 for prohibiting the erasing of the writing information. The operation unit 56 is provided with a writing screen 60 on which the same image as the monitoring screen displayed on the display unit 54 is displayed.
[0040]
A pen input transparent board 61 serving as an additional information input unit is placed on the writing screen 60. The monitoring screen displayed on the writing screen 60 can be seen through from the pen input transparent board 61. When a desired character, figure, or the like is written on the upper surface of the pen input transparent board 61 with the light pen 62, the position information of the writing locus is output to the additional information processing unit 63 as write information. That is, if a memo is written on the upper surface of the pen input transparent board 61 corresponding to the monitoring screen seen through, only the writing information indicated by the locus is extracted.
The additional information processing unit 63 edits the writing information input from the pen input transparent board 61 and outputs it to the display processing unit 53.
Next, the operation of the present embodiment configured as described above will be described.
[0041]
In order to monitor the operation state of the plant, a desired monitoring screen is displayed on the display unit 54. For example, assume that the monitoring screen shown in FIG. 7 is displayed. In order to clarify the monitoring target portion with respect to this monitoring screen, the same monitoring screen is also displayed on the writing screen 60 of the operation unit.
[0042]
Next, when the permission switch 57 is pressed, the additional information input unit 61 and the additional information processing unit 63 can enter additional information. In this state, the monitoring target portion is surrounded by a dotted line, for example, on the pen input transparent board 61 with the light pen 62, and the meaning is described in text. If the pump A displayed on the monitoring screen is in the inspection state, a supplementary explanation to that effect is written on the transparent board 61 for pen input.
[0043]
The trajectory information of the light pen 62 is input to the additional information processing unit 63. The additional information processing unit 63 converts the locus information (writing information) from the pen input transparent board 61 into position coordinate information corresponding to the monitoring screen on the display unit 54 and outputs the position coordinate information to the display processing unit 53. Then, the display processing unit 53 synthesizes the write information with the data of the monitoring screen currently displayed on the display unit 54, and creates composite screen information in which the writing information is displayed on the monitoring screen as shown in FIG. To do. The synthesized screen information is displayed and output on the display unit 54.
[0044]
As a result, the operator who is monitoring the plant while looking at the display unit 54 can quickly confirm the monitoring target portion, and can easily add necessary information in a free format according to the operating state.
[0045]
Note that the erasure switch 58 is pushed to erase the additional information. As a result, all the additional information added to the display screen is deleted. In order to prevent the additional information added on the monitoring screen from being erased by an erroneous operation or the like, the prohibit switch 59 is pressed. When the prohibit switch 59 is pressed, all signals from the delete switch 58 are canceled as long as the display screen is displayed even if the delete switch 58 is subsequently pressed.
[0046]
As described above, according to the present embodiment, the same image as the monitoring screen of the display unit 54 is displayed on the writing screen 60 of the operation unit 56, and the pen input transparent board 61 is placed on the writing screen 60. Pen writing information is input in correspondence with the monitor screen of the display unit and combined with the monitor screen, so the necessary additional information can be easily added to any position on the monitor screen, and the operator can clearly grasp the part to be monitored Information necessary for operation monitoring can be obtained from the same screen. As a result, it is possible to prevent an operator's erroneous determination and erroneous operation, and to take appropriate measures promptly during plant operation.
[0047]
Moreover, since the present embodiment is configured to write additional information not by directly writing additional information to the display unit 54 but by an operation unit 56 provided separately from the display unit 54, the posture at the time of writing Is natural and easy to work with.
[0048]
In the third embodiment, the additional information on the monitoring screen can be displayed in a special display color different from the display color of other symbols. Further, if the thickness of the line of the additional information can be changed to an arbitrary thickness, a higher effect can be expected.
[0049]
In addition, when a plant operation is monitored by a plurality of operators using a plurality of CRTs in a medium- or large-scale plant or the like, operation instructions, transmission items, etc. are generated between the operators. At that time, an apparatus having the same configuration as that of the present embodiment is connected via the data transmission line, so that necessary information can be transmitted to another operator (CRT) via the monitoring screen without leaving the seat while monitoring. Can tell.
[0050]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to easily write arbitrary information on the base screen displayed on the CRT as if making a memo and improve the operation monitoring support function for the operator.
[Brief description of the drawings]
FIG. 1 is a functional block diagram of a screen display device according to a first embodiment of the present invention.
FIG. 2 is an external view of the screen display device according to the first embodiment.
FIG. 3 is a diagram for explaining a combining operation of a base screen and a memo screen in the first embodiment.
FIG. 4 is a functional block diagram of a screen display device according to a second embodiment of the present invention.
FIG. 5 is a diagram showing an application example of the second embodiment.
FIG. 6 is a functional block diagram of a plant monitoring apparatus according to a third embodiment of the present invention.
7 is a schematic diagram of a display unit and an operation unit of the plant monitoring apparatus shown in FIG.
8 is an operation explanatory diagram of the plant monitoring apparatus shown in FIG. 6. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Base screen memory, 11 ... Display screen, 12, 13 ... Position sensor, 14 ... Memo pen, 19 ... Memo screen memory, 20, 31 ... Screen controller, 21 ... Common memory, 23 ... Instrument tag file, 26 ... Tag search controller, 30 ... memo display window screen memory, 32 ... window screen control unit, 50 ... storage unit, 53 ... display processing unit, 54 ... display unit, 55 ... variable information input unit, 56 ... operation unit, 60 ... writing screen, 61 ... transparent board for pen input, 62 ... light pen.

Claims (2)

In a screen display device that stores one or more types of base screens in a base screen memory in advance, and reads and displays the selected base screen from the base screen memory.
A memo writing means comprising a position sensor for detecting a position based on an orthogonal XY coordinate system, and converting memo information to be written at a desired position on the base screen into coordinate information corresponding to the base screen and inputting the memo information;
The base screen read from the base screen memory and the coordinate information input from the memo entry means or the window screen in which the memo information is written to the base screen are combined, and the desired position on the base screen is obtained. And a synthesizer that outputs the screen displaying the memo information or the window screen ,
The instrument or device within the memo range is searched from the coordinate information of the memo information displayed on the base screen and the coordinate information of the device symbol in the base screen, and operations on the searched instrument or device are prohibited. screen display device according to claim <br/> to make. Symbol information necessary for plant operation monitoring is stored in the storage unit in advance, and when there is a screen display request, the symbol information of the display screen is extracted from the storage unit, and the extracted symbol information is combined into the display unit. In the screen display device to display,
An operation unit that is provided separately from the display unit, displays the same display screen as the display unit, and accepts writing to the display screen;
An input unit that includes a position sensor that detects a position based on an orthogonal XY coordinate system, and that converts and inputs writing information received by the operation unit into coordinate information corresponding to a display screen on the display unit;
Combining means for combining the writing information input from the input means and the symbol information of the display screen displayed on the display unit, and generating combined screen information in which the writing information is drawn in the display screen;
Equipped with,
An instrument or device within the writing range is searched from the coordinate information of the writing information displayed superimposed on the display screen and the coordinate information of the symbol information of the display screen, and operation on the searched instrument or device is prohibited. <br/> A screen display device characterized by the above.

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