JPH04186196A - Screen changeover device - Google Patents

Abstract

PURPOSE:To make changing-over of a screen with one changeover operation and allow changing-over back to the original screen after the operator has checked it. CONSTITUTION:When No.1 switch 9 of a screen changeover request input device 1 is adhered, a screen changeover control device 2 receives No. of request information screen from the input device 1, and a request signal is sent to a screen memory device 3 so that the screen before changing-over currently being emitted to an information output device 5 is stored in memory. After an answer signal about end of storing is received from this memory device 3, the information screen being requested by the operator is taken out of a screen database 4 and sent to the output device 5. When a release signal is received from the input device 1, which is in short-time changeover mode, the control device 2 instantly sends a request signal to the memory device 3 so that it shall give the stored screen to the output device 5. The memory device 3 will implement the request immediately.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a screen switching device for a central control unit of a plant.

(Prior Art) In a nuclear power plant, most of the information provision and control operations of the plant are generally centrally performed by a central control unit. There is a large amount of various information related to the plant, and the operator can request the necessary information using a selection menu, or the necessary information can be automatically displayed on the CRT.
Provided as screen information via .

When the operator wants to switch the screen information that has already been provided to a more detailed screen or a related screen, the operator can use a screen change switch from the screen information that has already been provided, such as a symbol or character related to the screen that is to be switched. information,
Alternatively, you can select the desired screen by touching the screen selection menu switch displayed on the screen, or by pressing the button switch displayed on the screen selection menu prepared separately from the screen display section. I was getting it.

Selection using this button switch is only for the operator to select a screen that is used particularly frequently or displays important information, and several screens are specially provided for efficient use.

These screen changes completely erase the previous screen and output the requested screen. If you want to display the previous screen again, select the "Previous screen" button in the screen selection menu. You must select the screen number or name of the screen before switching to obtain the original screen before switching. This procedure is used even when an operator wants to display another screen for a short period of time just to check the status of a certain device. Furthermore, even if the user accidentally presses a button switch different from the one for the screen he or she intended to request, the screen must be switched several times to obtain the required information screen.

In this way, the conventional screen switching device in a central control unit constantly monitors the screen that is already displayed when you want to view other related information or check detailed information on the screen that is being displayed while controlling the plant. When displaying a necessary information screen for a short period of time, and then returning to the original screen, first operate the button switch to select the relevant information, then press the ``previous screen'' switch to return to the original screen. must be displayed.

At this time, if a selection switch called "previous screen" is not installed on the screen or in the screen selection switch section, a selection menu screen must be displayed and a request to display the previous screen must be made.

(Problems to be Solved by the Invention) As described above, in conventional screen switching devices, even if you only want to confirm in a short time, you press the switch corresponding to the screen or screen selection switch each time to switch the screen. Must be done several times. Therefore, although confirmation can be done immediately, the continuous monitoring of the screen before switching is interrupted for a long period of time, causing problems in the efficiency of monitoring and control, such as reducing concentration on monitoring tasks and interrupting the flow of control operations. Ta.

In particular, when an operator controls a plant, he or she often assembles a flow of thought such as a series of monitoring, operation, confirmation, and operation for the purpose of controlling Plan I. Select and switch screens,
Furthermore, if an operation such as returning to the screen before switching is entered, an operation or thought for a purpose other than plant monitoring and control, such as switching the screen, will be included in the flow of thoughts.

Particularly in important and stressful situations, such as when performing monitoring operations to recover from abnormal plant conditions, operators must perform operations for other purposes, such as screen selection, many times, causing mental stress on the operator. Placing a burden on the operator or interrupting the operator's thinking process may lead to operational errors or judgment errors, making it difficult to properly control the entire plant.

In monitoring the operating status of a plant, especially monitoring the entire plant, alarms, etc., current screen designs often provide several types of information screens that are hierarchical from overview to detail. When monitoring such information, operators compare each detailed information screen with the overall summary information screen in order to check each detailed information while grasping the overall operating status or alarm status of the plant. Monitor or operate the vehicle from anywhere. At this time, since there is no function to zoom up a part of the screen or automatically switch to the original screen after a certain period of time after switching the screen, the operator must switch the screen from general summary information to detailed information. Then, after switching the screen from detailed information to the original summary information, the user must switch to another screen with necessary detailed information. If there is a lot of detailed information you want to check,
The operator had to perform screen switching operations many times, and there were disadvantages in that the information desired by the operator could not be provided flexibly.

In addition, if the operator accidentally presses the request button on a screen that is not the required information screen, or forgets the correspondence between the required information and the screen, the screen Since the monitor had to be switched over and over again to retrieve the necessary information, monitoring operations were interrupted considerably, which could pose a safety problem for the plant.

The present invention has been made in view of the above-mentioned problems, and adds a function to automatically switch to the original screen after a certain period of time after switching the screen to the screen switching function for the operator to obtain desired screen information. , When the operator wants to return to the original screen information immediately after checking, the screen information is switched with a single switching operation, and after the operator has finished checking, the screen is switched back to the original screen, making it easier for the operator to monitor and It is an object of the present invention to provide a screen switching device that eliminates the troublesome operation of switching information screens related to control and allows efficient monitoring and control.

[Configuration of the Invention (Means for Solving the Problem) In order to achieve the above object, a screen switching device according to the present invention includes a screen switching request input means having a first switch section and a second switch section; a screen switching control means that has two screen switching modes and determines and controls a screen switching mode in response to a screen switching request from the screen switching request input means; a screen database that provides screen information to the screen switching control means; information output means for outputting the screen information via the switching control means; and information output means for storing the screen information output to the information output means in response to a request signal from the screen switching control means, and in response to a request signal from the screen switching control means. The present invention is characterized by comprising a screen storage means for redisplaying the screen information on the information output device.

Further, a screen switching input means for inputting a screen switching request signal, and a switching form determining means for determining a switching form by comparing the duration of the screen switching input signal from the screen switching input means with a set reference value; The screen switching control means may have two screen switching modes and control the screen switching mode in response to a screen switching request from the switching mode determining means.

(Function) In the screen switching device configured in this way, one of the two screen switching modes is determined by the screen switching control means in response to a screen switching request from the screen switching input means or the switching mode determining means. Controls screen switching. The screen information is output from the screen database to the information output means via the screen switching control means, and the screen information is outputted to the information output means by the screen switching control means in accordance with the screen switching form determined at the time of the screen switching request. Information is stored and the screen information is redisplayed on the information output device in response to a request signal from the screen switching control means.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a block diagram of a screen switching device according to a first embodiment of the present invention. In FIG. 1, a screen switching request input device 1 is a device that requests the output of a corresponding screen when an operator wants to switch the screen output to a display output device 5 such as a CRT, and a screen switching control device 2 is a device that actually switches the screen to the display output device 5. The screen storage device 3 stores the screen displayed on the information output device 5 or outputs the stored screen to the information output device 5 again in response to a signal from the screen switching control device 2 . Further, the screen database 4 stores screen information.

The screen switching request input device 1 generates an operator's screen switching request as a request signal when the operator presses a switch, detects the position where the operated switch is touched, and performs the operation based on this position information. Identify the number of information screens requested by personnel.

Then, the operator's screen switching request inputted by the screen switching request input device 1 is transmitted to the screen switching control device 2 as a request information screen number. after that,
The screen switching request input device 1 generates a release signal when the operator finishes the screen switching request operation and releases the switch, and at this time selects the switching mode depending on the depth with which the switch is pressed. The information is also transmitted to the screen switching control device 2.

As described above, the screen switching request input device 1 allows the operator to request the computer to switch the screen along with the type of screen that the operator is trying to output, and the computer to provide the requested information screen. It is the point of contact between the computer and the operator, and is always on standby so that it can receive requests from the operator.

Further, the selection of the switching mode is performed depending on the structure of the switch of the screen switching request input device 1.

2 and 3 show the switch structure of the screen switching request input device 1 of the screen switching device according to the first embodiment of the present invention, and FIG. 4 shows a flowchart for selecting a switching mode. In FIG. 2, the screen switching request input device includes a first switch section 8 that receives a screen switching request;
The second switch section 9 is configured to select a switching mode. When the operator presses the external button part 6 of the screen switching request input device 1 to switch the screen, and the lower switch side surface 7 adheres to the first switch part 5, the screen switching request is accepted and the screen immediately changes. Switch to the requested information screen. If the operator's operation of the screen switching request input device 1 ends before the switch bottom part 8 is bonded to the second switch, the screen is removed from the bond between the switch bottom side surface 7 and the first switch part 5, Immediately return to the previous screen when the operation is completed. However, the operator's screen switching request input device 1
If the operation is completed after adhering to the second switch part 10, the screen will remain switched and will not return to its original state. In other words, the selection of the switching mode between the - time switching mode and the complete switching mode is performed depending on whether or not the screen switching request input device 1 is bonded to the second switch section 10 during operation of the screen switching request input device 1. Therefore, the screen changes when it is attached to the first switch part 9, but the second switch part 10
unless the switch bottom 8 is glued to the first switch part 9.
While the lower side surface 7 of the switch is adhered to the switch, the screen remains switched to the request screen even for a long time, and when the operation of the screen switch request input device 1 is completed, the screen returns to the state before switching. The screen changes instantly.

Here, the switching mode is a mode regarding the form of screen switching, and in the present invention, two modes are set: a complete mode and a short time mode.

In complete mode, the screen completely switches to the requested screen, and even if the operator finishes the switching operation, the screen that is output is the screen after switching, and when the operator needs the screen information before switching, , the screen switching operation must be performed again.

This complete mode has traditionally been used. On the other hand, the short-time mode is a mode in which, after switching to a requested screen, when the operator completes the switching operation, the screen automatically returns to the screen that was displayed before switching.

The screen switching control device 2 receives and receives the request information screen number from the screen switching request input device 1, and at the same time instructs the screen storage device 3 to store the screen before switching that is currently being output to the information output device 5. After transmitting the request signal and receiving a reply signal indicating the end of storage from the screen storage device 3, the information screen requested by the operator is retrieved from the screen database 4 and outputted to the information output device 5. Thereafter, if the switching mode is selected as the short-time mode, upon receiving the release signal from the screen switching request input device 1, the screen switching control device 2 immediately stores the stored screen in the screen storage device 4. A request signal is sent to the information output device 5 for output, and upon receiving the request signal, the screen storage device 4 immediately outputs the stored screen to the information output device 5.

The screen storage device 3 functions to store the screen displayed on the information output device 3 and output the stored screen to the screen output device again in response to a signal from the screen switching control device 2.

Next, mode settings for screen switching will be explained.

The screen switching device according to the first embodiment of the present invention allows selection of two switching modes: full mode and short time mode.
This is done depending on the operation mode of the operator.

The selection of the switching mode is performed by the depth with which the operator presses the external button portion 6 of the switch for the screen switching request operation. A first switch 9 is provided at a relatively shallow place inside the switch, for example at a position of about 2 to 3+++n+ -15=, and a screen switching request is accepted by adhering the lower side surface 7 of the switch to the first switch 9. Then, the second switch 10 is placed deeper than the installation position of the first switch 9, for example, at a position of about 6 to 8 mm.
By installing the second switch 10 and adhering the switch bottom 8 to the second switch 10, the screen switching mode is selected as the complete mode.

Here, in this embodiment, the initial value of the screen switching mode is set to short time mode, and each time a screen switching request is received by adhering the switch lower side surface 7 to the first switch 9, the initialization is performed. be done. Therefore, when resetting the screen switching mode, switch bottom 8 is set to second switch 10.
For the first time, the screen switching mode is set to full mode, so the switch bottom 8 is connected to the second switch 1.
If the value is not set to 0, the screen switching mode remains in the short-time mode.

Therefore, in order to obtain the necessary information, the operator presses the external button part 6 of the switch of the screen switching request input device 1 and glues the lower side surface 7 of the switch to the first switch 9 when switching the screen. A screen can be obtained on an information output device. Then, while the switch bottom part 8 maintains the state before being bonded to the second switch 10, the screen is outputting the requested information screen, and the screen is displayed without bonding the switch bottom part 9 to the second switch 10. Immediately after the operation of the switching requesting device 1 is completed, the screen before switching is displayed. Also, the switch bottom 9 is connected to the second switch 7.
When the external button part 6 of the switch is pressed deeply enough to cause it to adhere to the screen switching request input device 1,
Even after completing the operation, the screen will not display the requested screen output status.
It is held until the next screen switching request is made.

Note that mode switching according to the present invention is not necessarily performed by operating a hard switch, and the same operation form can be considered in a touch operation that combines an infrared type and a pressure membrane type. FIG. 3 shows a simplified diagram of the operation when the screen switching request input device is a touch panel. In Figure 3,
It is also possible to select the screen switching mode by regarding infrared rays blocking with a finger as the first switch 12 and contacting the pressure membrane attached to the information output device 5'' with the finger as the second switch 13.

With the configuration described above, the operator can constantly monitor the screen currently being output on the CRT screen, and while controlling the plant, when he or she wants to view other related information or check the detailed information on the screen being displayed. For example, the operation of displaying the necessary information screen for a short period of time, and then returning to the original screen,
In conventional methods, the screen must be switched to the necessary information, then back to the original screen, and then switched more than 10 times.
However, with the present invention, it can be done in five operations, making it possible to do it in less than half the number of times, significantly reducing the number of operations, and allowing the operator to do less monitoring work. This improves plant safety by allowing more focus to be placed on

In addition, since there is no need to switch back to the original screen after confirmation, there is no need to interrupt the flow of thought, which is a series of monitoring-operation-confirmation-operation that is assembled for the purpose of controlling the plant. = 18 - Since smooth monitoring and control can be performed, the possibility of operational errors and judgment errors is reduced and reliability is increased, especially when performing monitoring operations to recover from an abnormal state of the plant.

In order for operators to check individual detailed information without grasping the overall operating status or alarm status of the plant, they can compare individual detailed information screens with the overall summary information screen to monitor and operate operations. When doing so, switch to the required screen and immediately return to the original screen after the operator's confirmation;
Since the IIJ changes, a large amount of detailed information that you want to check can be checked one after another smoothly, and detailed information can be presented for as long as the operator wants to check, so you can flexibly provide the information that the operator wants. , the efficiency of plant operation and monitoring increases, with a significant reduction in operating time.

Next, FIG. 5 shows a block diagram of a screen switching device according to a second embodiment of the present invention. Note that the same parts in the figure as in FIG. 1 are indicated by the same reference numerals, and the explanation of the overlapping parts will be omitted.

In FIG. 5, the screen switching request input device 21:
When an operator wishes to switch the screen currently being output to a CRT or the like to another information screen, the operator issues an output request for the relevant screen using the EL switch 22, operation switch 23 and CR.
This is done using the touch panel 24 etc. installed on the screen of the T15. The screen switching request input device 21 generates an operator's screen switching request as a request signal when the operator touches a switch or panel, and also detects the operated switch or the position where the operator touches the panel. Then, based on this position information, the number of the information screen requested by the operator is identified. The screen switching request input by the operator through the screen switching request input device 21 is transmitted to the screen switching control device 2 as a request information screen number, and the screen switching request operation is sent to the switching mode determining device 20. A signal is output to notify that this has been done. Thereafter, the screen switching request input device 21 generates a release signal and transmits it to the switching mode determining device 20 when the operator finishes the screen switching request operation and releases the switch or panel.

The switching mode determining device 20 receives a signal from the screen switching request input device 21 that indicates that a screen switching request operation has been performed, and at the same time continues counting time until receiving the next cancellation signal. Then, the switching mode is determined by comparing the counted time with a preset reference value, and when the switching mode or the short time mode is selected, the switching mode determining device 20
A request signal for re-switching the screen is transmitted to the screen switching control device 2.

The relationship between the screen switching request operation and the screen switching request input device 21 is shown and explained in FIGS. 6 and 7. In FIG. 6, the screen switching request input device 21 is an infrared type touch panel, and an infrared ray 25 covers the CRT 15J.

Further, the operator's hand 11 is moving in the direction of the arrow. 7th
The figure is a switch configuration diagram when the screen switching request input device is a hard switch. Further, FIG. 8 shows a flowchart of switching mode selection.

Counting of the time the operator is operating the switch starts when the operator presses the switch, for example, when the finger blocks the infrared rays on an infrared touch panel (Fig. 6(a)). This continues until the obstruction is removed (Fig. 6(C)). Further, in the case of a hard switch or the like in FIG. 7, the period during which the contact of the switch is closed (FIG. 7(a)) is counted.

The mode setting is determined by whether the counted time is longer or shorter than the reference value. If the counted time is shorter than the reference value, the switching mode is determined to be full switching mode, and when it exceeds the reference value, short-time mode is determined. Switch to . Note that this automatic switching of mode determination is determined for each screen switching request operation performed by the operator.

That is, as described above, in response to the request signal from the switching mode determining device 20, the screen switching control device 2 automatically determines the two switching modes, the complete switching mode and the short time mode. The switching mode is determined based on the length of time the operator is touching the switch to request screen switching. In general, in operations using button switches, etc., functions required by the operator in a single operation other than long-term continuous operations such as opening and closing a balloon. The time required for pressing (pressing) the switch is considered to be almost constant during normal operation, and a time sufficient for switch operation is set as a reference value, and this is used as a criterion for determining the mode.

For example, in the second embodiment, 5 seconds was set as the reference value as a result of thousands of operations performed by several operators.

This reference value can be freely changed as necessary.

With the above configuration, the same effects as in the first embodiment can be obtained in the second embodiment as well.

[Effects of the Invention] According to the present invention, the operator constantly monitors the screen currently being output on the CRT screen, and when he or she wants to view or display other related information while controlling the plant. When you want to check the detailed information on the screen that is displayed, that is, when you display the necessary information screen for a short time and then return to the previous screen, for example, five times, the conventional method Switch, switch to the original screen, and switch the screen.
Previously, it was necessary to perform the operation "O or more times," but with the present invention, it can be performed in 5 times, reducing the number of operations by half or more, resulting in a significant reduction in the number of operations, and requiring less time for the operator. This will improve the safety of the plant as it will allow you to focus on monitoring work.

In addition, since there is no need to switch back to the original screen after confirmation, there is no need to interrupt the flow of thought, which is a series of monitoring-operation-confirmation-operation that is assembled for the purpose of controlling the plant. Since smooth monitoring and control can be performed, the possibility of operational errors or judgment errors is reduced, and reliability is increased, especially when performing monitoring operations to recover from abnormal plant conditions.

In order for operators to check individual detailed information while grasping the overall operating status or alarm status of the plant, operation monitoring or operation is performed while comparing each detailed information screen with the overall summary information screen. When the operator changes to the required screen, the screen immediately switches back to the original screen after the operator's confirmation, allowing the operator to smoothly check a large number of detailed information one after another, and for as long as the operator wants to check. Since detailed information can be presented, the information desired by the operator can be flexibly provided, which greatly reduces the operation time and improves the efficiency of plant operation and monitoring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a screen switching device according to a first embodiment of the present invention, and FIG. 2 (a), (b), (c)
3(a), (b), and (c) are operation diagrams showing an operation example of the screen switching request input device of the screen switching device according to the first embodiment of the present invention, and FIG. Flowchart 1 for determining the switching form of the screen switching device according to the first embodiment, FIG. 5 is a block diagram of the screen switching device according to the second embodiment of the present invention, and FIG.
a), (b), (C) and Figure 7 (a),
(c) is an operation diagram showing an operation example of the screen switching request input device of the screen switching device according to the second embodiment of the present invention;
The figure is a flowchart 1 for determining the switching mode of the screen switching device according to the second embodiment of the present invention. 1.21...Screen switching request input device 2...Screen switching control device 3...Screen storage device 4...Screen database 5...Information output device 6, 26...External button section q/Q 2...First switch section l...Second switch section Wa
2!・・・
・Bottom side of the switch Cedar...Switch bottom 11...Operator's hand 1.2.25...Infrared rays 13...Tension membrane 15...CRT 20...Switching configuration setting device 22...EL switch 23.・Keyboard 24
...Touch panel 28...Switch contact agent Patent attorney Noriyuki Chika-26 = Fig. ze] Miite layer, / IV (/es Kaname') Switch to screen Fig. 6 Fig. 7

Claims (2)

[Claims] (1) In a screen switching device for switching a monitoring control screen of a central control unit of a plant, the screen switching request input means has a first switch part and a second switch part, and the screen switching request input means has two screen switching forms. a screen switching control means that determines and controls a screen switching form in response to a screen switching request from the screen; a screen database that provides screen information to the screen switching control means;
information output means for outputting the screen information via the screen switching control means; and information outputting means for storing the screen information output to the information outputting means in response to a request signal from the screen switching control means, and responding to a request from the screen switching control means. A screen switching device comprising screen storage means for redisplaying the screen information on an information output device in response to a signal. (2) In a screen switching device that switches the monitoring control screen of a central control unit of a plant, a screen switching input means for inputting a screen switching request signal and a duration time of the screen switching input signal from this screen switching input means are set. a switching mode determining means for determining a switching mode by comparing reference values determined by the switching mode; a screen switching control means having two screen switching modes and controlling the screen switching mode in response to a screen switching request from the switching mode determining means; a screen database that provides screen information to a switching control means; an information output means that outputs the screen information via the screen switching control means; and a request signal output to the information output means from the screen switching control means. A screen switching device comprising screen storage means for storing screen information and redisplaying the screen information on an information output device in response to a request signal from the screen switching control means.