JPH09138702A - System monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve responsiveness by setting a necessary priority order to each event through the use of a priority order from a priority order storing means to speedily process a request from an operator concerning specific man- machine interface processing though a computer is in a highly loaded state because of multiple happenings, etc. SOLUTION: An automatic/manual switching means 102 is for setting automatic/manual by allowing an operator to depress keys on the keyboard of a console table or to specify from the picture of CRT. When the automatic/ manual switching means 102 sets automatic or manual, the setting is reported to a computer load means 103. When automatic operation is set, the load of the computer is periodically monitored and when the load of the computer becomes higher than a previously decided state, the necessity of the switch of the priority is reported to a priority switching means 102. On the other hand, manual operation is set, periodical computer load measurement is stopped. Thereby excellent responsiveness is shown though the multiple happenings are generated to make the computer to be in a highly loaded state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system monitoring device for monitoring the status and response of equipment in a power system by an electronic computer.

[0002]

2. Description of the Related Art For various processes in an electronic computer, priorities are defined for the electronic computer to allocate a running time (CPU time) on the electronic computer to each process according to the importance of the process. There is. Since the CPU time given to the process having the low priority is relatively small, the process time becomes longer when the priority of a certain process is lowered and when it is lowered.

Further, there are a plurality of man-machine interface devices (MMI devices) as a monitoring device for monitoring a power system, a power generation plant, other plants, etc., and information displayed by a plurality of processes in an electronic computer is controlled. Has been done. A process for processing information input from a transmission device (hereinafter referred to as a state change process) is also incorporated in the electronic computer, and is defined with a higher priority than a process for man-machine interface processing.

Each man-machine interface device provides the same function, and the processes for controlling the same information (screen on the man-machine interface) are present in the computer for each man-machine interface device. If they are the same processing, they are defined with the same priority.

Therefore, when the input from the transmission device extremely increases and the CPU time given to the state change process increases (this is called multiple state change), the CPU time given to the man-machine interface process becomes relatively large. Since the number is less, the responsiveness of the man-machine interface processing is extremely reduced. For this reason, it was not possible to expect excellent responsiveness no matter which man-machine interface device the operator requests in the case of multiple changes.

The above example will be described with reference to FIG. FIG.
The system monitoring device shown by 0 is composed of a system monitoring device main body composed of an electronic computer and a plurality of man-machine interface devices, and all devices are controlled by the same process and priority process. As an example of those processes and priorities, the priority of the processing for displaying the detailed status of each switch or relay (hereinafter, referred to as skeleton screen processing) is 10, and the status information of the monitored power system is used. The priority of the process of outputting a message (hereinafter, referred to as message screen process) is defined as 11, and the priority of the process of displaying recorded data at every hour (hereinafter, referred to as record screen process) is defined as 12. (The smaller the priority value, the higher the priority). The priority of the state change process is defined as 9.

At this time, if the CPU time given to the state change process increases due to the multiple state change, the CPU time given to each screen process is reduced, and the responsiveness deteriorates. For example, if you want to display a skeleton screen, the priority of skeleton screen processing is assigned to all man-machine interface devices with the same priority, and that priority is lower than the state change processing. The responsiveness was poor even when using the interface device.

[0008]

In addition to the man-machine interface processing, a lot of processing is operating in the system monitoring apparatus main body composed of an electronic computer, and each processing is similar to the man-machine interface processing. Priority is defined in. In the processing of the system monitoring device, the priority of the state change processing is usually high, so if the load on the computer becomes very high as in the case of multiple state change, the man-machine with high priority like the skeleton screen will appear. Even in the case of interface processing, the responsiveness is extremely reduced.

Moreover, since the same priority is defined for all man-machine interface devices, high responsiveness cannot be expected from any device requesting. It is necessary for the operator to grasp the system state immediately in the case of multiple changes, but it takes a very long time to display the screen due to the heavy computer load, and it becomes impossible to grasp the system state.

When the system to be monitored is an electric power system, the operator normally shares the tasks such as system control, power supply monitoring, and command operation sheet preparation. It is expected that each operator will operate using each man-machine interface process even under heavy load. On the other hand, if the priority is fixed for each man-machine interface process, no high responsiveness can be expected from any man-machine interface device. The same is true when the monitored plant is a power plant or a chemical plant.

The present invention has been made to solve the above problems. Even if a computer is in a high load state due to multiple time variations, a specific man-machine interface process requires a request from an operator. It is an object of the present invention to provide a system monitoring device that enables an operator to quickly grasp the system status by providing a man-machine interface environment that processes quickly and has good responsiveness.

[0012]

A system monitoring device according to [Claim 1] of the present invention displays a transmission device capable of monitoring the state of each device in a monitored system and information from the transmission device. In a system monitoring device including a plurality of man-machine interface devices capable of controlling and a computer having a plurality of processes (applications) controlling them, various man-machines existing for each button on each man-machine interface device The interface processing is provided with priority storage means for individually defining the processing priority and priority switching means for switching the priority for each man-machine interface processing unit of each man-machine interface device. Therefore, it is possible to give each man-machine interface process a required priority by using the priority from the priority storage means.

According to a second aspect of the present invention, there is provided a system monitoring device according to the first aspect, wherein a priority initial value storage means for storing an initial value of priority for each process and a priority switching completed flag. Confirm that the priority has been changed by, and if there is a priority change, monitor the operating status of the process, and if there is no start request within a certain time from the last start time of the process A priority cutback judging means for returning the priority of the processing to the initial value is provided. Therefore, the computer can automatically judge and provide the environment with the best operability.

The system monitoring apparatus according to [Claim 3] of the present invention is, in [Claim 1], priority switching in which information is stored to determine which process priority should be switched for each man-machine interface apparatus. Equipped with object storage means. Therefore, the priority of the function mainly used can be set to a predetermined value for each man-machine interface.

A system monitoring apparatus according to [Claim 4] of the present invention has a selection point corresponding to a plurality of functions, and a console for selecting a screen for each function corresponding to pressing of each button. In a system monitoring device having a desk, in addition to the selection points for each of the normal functions, buttons provided for performing high-priority screen display processing for each man-machine interface device and all man-machine interface devices in operation The request cancel button for canceling the man-machine interface process of (1) and preferentially accepting a new display request is provided. Therefore, the operation according to the normal priority is performed according to the priority, but for the processing that needs to be performed with priority over all, the request cancel button is pressed and the new display request is given the highest priority.

A system monitoring device according to [Claim 5] of the present invention is a system monitoring device having selection points corresponding to a plurality of functions and man-machine interface processing means for processing a screen according to the selection of the selection points. In, a selection point acceptance processing unit that detects selection of a selection point, a selection number storage unit that stores the selection number of the selection point, and a priority of the man-machine interface process when the stored number reaches a predetermined number. Priority switching means to switch the degree to high,
A priority storage means for each process for storing the priority after the switching is provided. Therefore, the priority increases according to the actual need.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram showing an embodiment of an in-computer process priority switching device 107 used in a system monitoring device 210 whose overall configuration is shown in FIG. Reference numeral 102 automatically changes the priority of the man-machine interface process based on a command input by the operator 101 via the man-machine interface device according to the load of the electronic computer that heats the device 107 (automatically). ) Or not (manual), automatic / manual switching means 103, computer load measuring means 103 for measuring the load of the electronic computer in a constant cycle, and 104 by the operator 101 via a man-machine interface device. Priority switching means for switching the priority of the process based on a command input by the user, 105 is a priority storage means for storing the priority of each process, and 106 is a switching target when the priority of the process is automatically switched. It is a priority switching target storage unit that stores processes and switching conditions.

Before explaining the function of each component listed above, it is illustrated how the priority of each process stored in the priority storage means 105 of each process affects the system monitoring device 210. 2 is used for the explanation.

FIG. 2 is a functional block diagram when the system monitoring device is applied to a power system. The flow of displaying information input from the power system through the transmission device 201 on the CRT screen is roughly shown. There is. In FIG. 2, the state change data taken into the system monitoring apparatus 210 by the transmission device 201 is analyzed by the state change detection / analysis means 203 (state change processing) with reference to various equipment databases 206 and the like. Man-machine interface processing 2
05 (hereinafter referred to as screen display means 205) through man-machine interface devices 208-1, ..., 208.
-N (hereinafter referred to as MMI 208-1, ..., 208-n) is output to the man-machine. This man-machine interface device may be of a touch screen type instead of a light pen provided with a keyboard for inputting, a mouse or a light pen in addition to a display such as a CRT or a liquid crystal display.

The response of the MMIs 208-1, ..., 208-n depends on the processing time of the screen display means 205, but the priority of the process is higher in the state change detection / analysis means 203 than in the screen display means 205. Since it has been set, multiple CPs are generated and are given to the CP 203
When the U time increases, the CPU time given to the screen display means 205 decreases, and the MMI 208-1, ..., 20
This leads to a decrease in 8-n responsiveness.

Based on the above, the operation of each component shown in FIG. 1 will be described. The automatic / manual switching means 102 allows the operator to perform automatic / manual setting by pressing a button on the keyboard of the console console or by designating from the screen of the CRT. When automatic or manual is set in 102, the computer load measuring means 103 is notified,
When "automatic" is set, the computer load is monitored at regular intervals, and when the load on the computer becomes higher than a predetermined state, the priority switching means 104 is notified that priority switching is required. To do. Also, when "manual" is set, it is made so as to stop the computer load measurement of a fixed period.

FIG. 3 shows the priority storage means 105 for each process.
Shows an example of a configuration in which the process priority is saved, and the process priority is set according to the priority defined here.
PU time is assigned. FIG. 4 shows an example of the configuration for storing the priority switching target at 106.

In both FIGS. 3 and 4, the process number 12 is shown in the rightmost column.
3, it shows an example of data definition when the process number of the skeleton screen process for the man-machine interface device “1” 208-1 in FIG. 10 is 123. When the automatic / manual switching means 102 in FIG. 1 is set to "automatic", the computer load measuring means 10
3 is notified to the priority switching means 104, or when “manual” is set, the operator 101 sends the MMI 20
When the priority switching means 104 is notified via 8-1,
For the process number 123 whose priority switching target flag shown as 402 in FIG. 4 is 1 (target),
Process priority 10 (FIG. 3) 403 of 302 shown in FIG.
After the switching, the priority is switched to 8 (FIG. 4).

In the message screen processing of the man-machine interface device "2" 208-2 of FIG. 10 as well, the priorities of the respective processes after the priorities are switched in the same manner are shown in FIG. According to this embodiment, even if a multiple load occurs and the computer is in a high load state, if the high load is 511, the MMI 208-1 is used and the high load is 5%.
If it is 12, if it is possible to display each by the MMI 208-2, excellent responsiveness can be exhibited.

FIG. 6 is a functional block diagram showing another embodiment of the present invention. 6, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 6, reference numeral 601 denotes a man-machine interface processing means, 6
Reference numeral 02 is a priority cutback judging means, and 603 is a priority initial value storage means.

Next, the operation will be described. In FIG. 6, the operator 101 issues a screen display request to the man-machine interface processing means 601 using an operator console table or the like. At this time, the computer load measuring means 10 has already been
It is assumed that the priority is changed automatically according to No. 3 or manually according to a request from the operator 101. At this time,
Upon receiving the request from the operator 101, the man-machine interface processing means 601 notifies the priority cutback judging means 602 of the request.

At this time, the priority switching flag 602 shown in FIG. 3 indicates that the priority of the man-machine interface processing means 602 is automatically or manually changed.
7. If any of the processes are recognized and changed, the operating status of the process whose priority is changed is monitored at regular intervals.

The final start time 308 of FIG. 3 is updated every time the process is started, and the priority cutback judging means 602 monitors the final start time 308 and sends a start request within a fixed time from the final start time. If not, the priority of the process is made to be returned to the initial value stored in the priority initial value storage unit 603.

FIG. 7 shows an example of the initial value of the priority stored in the priority initial value storage means 603. In FIG. 7, the process number 701 is the initial value of the priority of the process of 123, and 702 is the priority 10.

Further, the computer load measuring means 103 measures the load of the computer at a constant cycle, and when the load of the electronic computer becomes lower than a predetermined state, all the processes whose priorities are changed. The priority is stored in the priority initial value storage unit 603 to be returned to the initial value.

According to the present embodiment, the priority of each man-machine interface process is automatically judged by the computer when all the events that cause the priority change are removed, and the computer is in the normal state. In that case, it is possible to switch back to the initial value of the priority that provides the man-machine environment with the best operability.

FIG. 8 is a diagram for explaining another embodiment, showing an example of a man-machine interface device. This man-machine interface device has a push button configuration at the selection point, and by pressing various buttons on the operator console console 802, the display device 80
It is designed so that the screen requested in 1 is displayed.

For example, when the button 803 is pressed, the skeleton screen is displayed, and when the button 804 is pressed, the message screen is displayed.
The recording screen is displayed by pressing the button 805. The priority of each process of the buttons 803 to 805 is assigned similarly to other man-machine interface devices. The button 806 is a button peculiar to this man-machine interface device and displays a skeleton screen, but the priority of the process is defined to be higher than that of the state change process.

A button 807 is a button for canceling the man-machine interface process being processed, and the priority of this process is defined to be higher than that of the state change process. When the computer is in the normal state, the buttons 806 and 807 are not used, and the operator monitors the power system by using the left half buttons mounted on all operator consoles. However, when a multiple load occurs and the computer is put in a high load state, the response due to pressing the left half button of the operator console is degraded.

At this time, a button for performing a high-priority screen display process assigned to each man-machine interface device is used (the skeleton screen is assigned to the man-machine interface device shown in the example of FIG. 8). ) Display the screen. If the computer presses a button (for example, button 805) to which a low-priority process is assigned in a high load state, a button to which a high-priority process is assigned (for example, 806) until the button process is completed. ) Cannot be performed. In this case, by pressing the button 807, all man-machine interface processing of the man-machine interface device can be canceled and a new display request can be accepted.

As described above, except for the button 806, the button 80 is used for a plurality of similar man-machine interface devices.
By selecting some man-machine interface processes with high importance assigned to 6 and defining them in advance,
Even when the computer has a heavy load, high responsiveness can be secured for specific processing. A plurality of buttons corresponding to the button 806 can be provided in the same device, or can be concentrated in one device.

FIG. 9 is a diagram showing still another embodiment, which is an example of a process in which the operator manually switches the priority of the man-machine interface process. In FIG.
The same parts as those in FIGS. 1 and 6 are designated by the same reference numerals and the description thereof will be omitted. In FIG. 9, reference numeral 1001 is a button press acceptance processing means, and 1002 is a button press count storage means. Next, the operation will be described.

In FIG. 9, when the operator 101 presses a button on a man-machine interface device such as an operator console table, the button press acceptance processing means 1001 activates the man-machine interface processing means 601 to display a screen. It is made to be

When the screen display is completed, the man-machine interface processing means 601 has the button press acceptance processing means 100.
1 is notified of the completion of processing. At this time, when the operator repeatedly presses the button before the screen is displayed, the priority of the process is increased according to the number of times.

When the computer load is high, such as when multiple changes occur, the screen display is difficult to display when the button is pressed. That is, the man-machine interface processing means 60
It is difficult to give the processing completion notification from 1 to 1001. When the operator presses the button again before the completion notification is given, the button pressing number saving means 1002 counts the number of times, and when a certain number of times is reached, the priority is given from the button pressing number saving means 1002. Notify the switching means 104,
The priority of the corresponding man-machine interface process in the priority storage unit 105 of each process is increased by one rank.

By repeating this, even when the priority of man-machine interface processing required by the operator is in the high load state, the screen is displayed when the computer becomes operable. By switching the priority in this manner, the operator can answer the screen display request even if the computer is in a high load state simply by pressing the button for which the display request is desired. In the present embodiment, the MMI
Although the button is used as the selection point for switching the priority of, when the touch screen method is used, the button may be switched depending on the number of touches.

[0042]

As described above, according to the present invention, even if the computer is in a high load state as in the case of multiple time variation, the man-machine interface processing of high importance defined in advance is It becomes possible to secure high responsiveness. This allows the operator to quickly grasp the system status.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an embodiment of a system monitoring device according to the present invention.

FIG. 2 is a functional block diagram schematically showing a flow in which information input from a power system via a transmission device is displayed on a CRT screen.

FIG. 3 is an example of process information stored in a priority storage unit of each process.

FIG. 4 is an example of process information stored in a priority switching target storage unit.

FIG. 5 is a diagram showing a system monitoring device whose priority is switched according to the present invention.

FIG. 6 is a functional block diagram showing another embodiment of the system monitoring device according to the present invention.

FIG. 7 shows an example of process information stored in a priority initial value storage means.

FIG. 8 is a diagram showing an example of a man-machine interface device according to the present invention.

FIG. 9 is an example diagram of a process in which an operator manually switches the priority of man-machine interface processing.

FIG. 10 is an example diagram of a conventional power system monitoring device.

[Explanation of symbols]

 101 Operator 102 Automatic / Manual Switching Means 103 Computer Load Measuring Means 104 Priority Switching Means 105 Priority Saving Means for Each Process 106 Priority Switching Target Saving Means 107 Priority Switching Equipment for In-Computer Processes 201 Transmission Equipment 202 Data Input Means 203 State change detection / analysis means 204 Analysis result notification means 205 Screen display means 206 Various equipment databases 207 Various electric power system data 208 Man-machine interface device 209 Electric power system 200 System monitoring device 210 System monitoring device main body 601 Man-machine interface processing means 602 Priority Degree cutback judgment means 603 Priority initial value storage means 801 Display device 802 Console console 803 Skeleton screen display button 804 Message screen display button 805 Recording screen display Button 806 skeleton screen priority display button 807 request cancel button

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location // H02B 15/00 H02B 15/00 C

Claims (5)

[Claims] 1. A transmission device capable of monitoring the status of each device in a monitored system, a plurality of man-machine interface devices capable of displaying information from the transmission device, and the transmission device and man-machine interface. In a system monitoring device including an electronic computer having a plurality of processes (applications) for controlling the device, various man-machine interface processes existing for each of a plurality of functions of each man-machine interface device are individually processed. A system monitoring apparatus comprising: priority storing means for defining a priority and priority switching means for switching the priority for each man-machine interface processing unit of each man-machine interface device. 2. The priority has been changed by confirming that the priority has been changed by a priority initial value storage means for storing the initial value of the priority for each process and a priority switched flag. If there is something, the operation status of the process is monitored, and if there is no activation request within a certain time from the last activation time of the process, the priority of the process is returned to the initial value The system monitoring device according to claim 1, wherein: 3. The system monitoring device according to claim 1, further comprising a priority switching target storage unit that stores information for determining which process priority should be switched for each man-machine interface device. 4. A system monitoring apparatus having a selection table corresponding to a plurality of functions, and a console table for selecting a screen for each corresponding function according to the selection of the selection points, In addition to the selection point of, the selection point provided for performing high-priority screen display processing for each man-machine interface device, and all man-machine interface processing of the man-machine interface device in operation are canceled, and a new man-machine interface device is canceled. A system monitoring device, comprising: a request cancel selection point for preferentially receiving a display request. 5. A system monitoring device having a selection point corresponding to a plurality of functions and a man-machine interface processing means for processing a screen according to the selection of the selection point,
A selection point acceptance processing unit that detects selection of a selection point, a selection number storage unit that stores the selection number of the selection point, and a priority of the man-machine interface process when the stored number reaches a predetermined number. A system monitoring apparatus comprising: priority switching means for switching to a higher level; and priority storage means for each process that stores the priority after switching.