JPH06186059A - Method for displaying monitoring screen of plant surveillance system - Google Patents

Abstract

PURPOSE:To quickly perform data retrieving on a display screen and to reduce the load of an operator and supervisor. CONSTITUTION:A scroll bar 14, whose length matches the capacity of a memory in which data showing plant conditions are stored, is set in part of a window 12 and a position in the scroll bar 13 is correlated with a data storage position in the memory and a series of data stored in the data storage position of the memory which corresponds to the position designated by a pointer 14 are displayed on a plant monitoring screen. In that case, the position in which a specific one of the data is stored is displayed in relation to the scroll bar 13 by means of a time tag 17. An operator and supervisor can surely perform retrieval without missing the required data by moving the pointer 14 to the position of the specific data indicated by the time tag 17 even if the speed of scroll operation on the screen is increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring screen display method for a plant monitoring device, and more particularly to a method suitable for monitoring the operation history of a plant.

[0002]

2. Description of the Related Art A plant monitoring device collects data representing the operating state of the plant from the detection ends such as sensors provided in each part of the plant, and displays the data designated from the collected data on a display screen. In this way, information on the plant operating state is provided to the operating / monitoring staff (Japanese Patent Laid-Open No. 2-249916, etc.).

In such a plant monitoring device,
Information display methods occupy an important position, and diversity and flexibility of information display methods are required. In particular, when displaying a large amount of continuous data, there is a limit to the amount of data that can be displayed on the display screen of a CRT display device or the like at the same time. For convenience of monitoring operation, information can be searched on the screen, such as a scroll operation for moving manually, a partial display for displaying a specific data unit, and the like.

[0004]

By the way, it is important for the plant monitoring work to promptly grasp the change in the plant operating state and to respond to the change. In particular, it is desired to quickly search for specific data indicating changes in driving conditions.

However, as the plant monitoring area is expanded and the plant structure is complicated, the data to be monitored in the plant is increased, and the time for page operation and scroll operation for retrieving desired monitor data on the screen is increased. As it becomes longer and the burden on the driver / monitorer increases, it is becoming difficult to respond promptly.

Therefore, it is conceivable to increase the page switching speed and the scrolling speed in order to shorten the data search time on the screen. However, there is a limit to the visual discriminating ability of the driving / monitoring staff, so if the scrolling speed exceeds this speed, there will be inconvenience such as missing the necessary monitoring data. As the number of plants increases, there is a problem that it becomes difficult to quickly respond to plant abnormalities.

In particular, since there is a large amount of history data showing changes in the operating state of the plant over time, it is desired to be able to quickly retrieve the necessary specific data by scrolling or the like on the display screen.

It is an object of the present invention to provide a monitoring screen display method for a plant monitoring device, which enables quick data retrieval on the display screen and reduces the burden on the operator / monitor.

[0009]

In order to achieve the above object, a search position display area having a size corresponding to the capacity of a memory for storing a plurality of data representing the state of a plant is set in a part of the display screen. Then, the position in the search position display area is associated with the position in the data storage area in the memory, and a movable pointer that specifies the position in the search position display area is displayed on the screen in association with the search position display area. However, the data storage area corresponding to the position in the search position display area designated by the pointer and the data stored in a certain number of data storage areas consecutive to this area are displayed on the display screen. In the method, the position of the data storage area in which specific data of the data is stored is displayed in association with the search position display area. To.

[0010]

According to the present invention having the above-mentioned structure, the above object can be achieved by the following operation.

Regarding important data to be monitored,
It is previously defined as specific data by automatic or manual operation, and information to be distinguished from other data is added and stored in the memory. As a result, the position of the memory area where the specific data is stored in the search position display area (hereinafter,
It is simply called the position of specific data. ) Is displayed.

Therefore, if the driving / monitoring person moves the pointer to the position of the specific data, the display contents of the screen are switched by scrolling or the like, and the specific data is displayed on the screen. Therefore, even if the operation speed of screen display switching such as scrolling is increased, necessary data can be surely searched without losing sight.

As a display method showing the position of specific data,
The following method can be appropriately selected.

(1) The display is made distinguishable from the display of other areas in the search position display area by visually different display modes such as color, density, mark, flicker and the like.

(2) When the position of the pointer approaches the position of the specific data, the display mode of the pointer is changed.

(3) When the monitored data is plant state history data and the specific data is main event data representing an important state change, the time at which the main event data changed is displayed.

[0017]

EXAMPLES The present invention will be described below based on examples.
1 to 5 are configuration diagrams of an embodiment of a plant monitoring apparatus to which the monitoring screen display method of the present invention is applied. 1 is a diagram showing a display state of a monitoring screen, FIG. 2 is an overall configuration diagram of a plant monitoring device, FIGS. 3 and 4 are detailed configuration diagrams of main parts, and FIG. 5 is an explanatory diagram of a scroll bar corresponding to a search position display area. Is.

With reference to FIG. 1, the overall configuration of the plant monitoring apparatus of this embodiment and the schematic configuration of each unit will be described.

The present embodiment is an apparatus for monitoring the operating state of a plant such as a power plant. The operating state of the plant is detected by various sensors provided in each part of the plant, and the detected data is detected by the process input / output device 1. Is periodically sampled as plant data via.

When the sampled plant data is continuous physical quantity plant data (analog data) such as temperature, flow rate, etc., it is input to the analog input processing device 2 and a predetermined input such as filter processing or normalization processing is performed. The process is executed. Further, when the imported plant data is plant data (digital data) representing a binary state such as valve opening / closing, equipment operation / stop, etc., it is input to the digital input processing device 3 and a predetermined input is performed. The process is executed.

The input processed analog data and digital data are separately stored in the memory as a plant database 4.

The event data collecting device 5 periodically scans the plant database 4 periodically, compares each plant data with the previous scan, judges whether or not the state of the plant has changed, and changes the plant data. Are defined as one event, respectively. Then, the event type storage device 6 is searched for each event, and the importance of the event is obtained. That is, the event type storage device 6 stores a table that defines the importance of various events from the viewpoint of plant operation monitoring, and the event data collection device 5 refers to the table and stores each event. Find the importance. Then, the obtained importance information is added to each event data and output to the event information cyclic buffer device 7 including a memory.

Event information cyclic buffer device 7
Stores the event time data of each event, which is input, in the cyclic memory.

The window display data collecting device 8 receives event data from the event information cyclic buffer device 7 in accordance with a command input from a request receiving device 10 such as a keyboard connected to a CRT 9 as a display device. The frequency information and the time of occurrence are read out and output as display data to the display output device 11.

The display output device 11 processes the input display data so as to form a predetermined display screen format and outputs the processed display data to the CRT 9. As a result, on the screen of the CRT 9, as shown in FIG. 1, the contents of the event data and the time of occurrence thereof are displayed in the main area of the window 12 set on the screen, and the scroll bar set on the right side of the area. 13 and its auxiliary information are displayed.

In FIG. 1, the length of the scroll bar 13 corresponds to the capacity of the cyclic memory of the event information cyclic buffer device 7.
The position in the longitudinal direction of 3 and the position of the data storage area of the cyclic memory are associated with each other.

The pointer 14 superimposed on the scroll bar 13 designates display data. The data storage area of the cyclic memory corresponding to the position of the pointer 14 and a fixed number continuous to the area. Event data stored in the data storage area of
The output is displayed in the window 12.

The pointer 14 points the scroll operation mark UP15 and the scroll operation mark DN16 displayed on both ends of the scroll bar 13,
It is designed to move up and down.

Further, in association with the position of the scroll bar 13 corresponding to the position of the storage area of the cyclic memory in which the main event data of high importance is stored, a time tag 17 indicating the time of occurrence of the main event is displayed. It is supposed to be displayed.

Next, detailed configurations of the event data collection device 5, the event type storage device 6, the event information cyclic buffer device 7, and the window display data collection device 8 according to the features of the present invention will be described.

FIG. 3 mainly shows the event data collection device 5, the plant database 4 and the event type storage device 6.
The detailed configuration of is shown. As shown in the figure, the plant database 4 stores a combination of “access key” and “data” for each plant data. For example, the access key “A
If you specify "002", the data will be "35KG / CM".
2 ”is read.

The event data collecting device 5 includes an alarm state scanning process 51, an abnormal state scanning process 52, a contact state scanning process 53, a state change determination process 54, a previous alarm state storage table 55, a previous abnormal state storage table 56, and a previous contact point. The state storage table 57 and the event type determination processing 58 are included. The alarm state scanning process 51 compares the read data with a limit value set in advance corresponding to the data, determines normal if the limit value is not exceeded, and determines an alarm state if the limit value is exceeded. "0",
The determination signal of “1” is reported to the state change determination processing 54.
Similarly, the abnormal state scanning process 52 determines whether or not there is an abnormality in the data, and the contact state scanning process 53 determines a change in the digital data, and reports it to the state change determination process 54.

The state change determination process 54 is stored in the present alarm state, abnormal state, contact state, and previous alarm state storage table 55, previous abnormal state storage table 56, and previous contact state storage table 57, respectively. The previous alarm state, abnormal state, and contact state are compared with each other, and the change in the value between the previous time and this time is detected, and only the changed data is defined as event data and output to the event type determination processing 58. . After the output, state change determination processing 5
4 replaces the contents of the previous alarm state storage table 55, the previous abnormal state storage table 56, and the previous contact state storage table 57 corresponding to the changed state with the current value.

The event type determination process 58 refers to the event type storage device 6 for each input event data and obtains the importance of the event. The event type storage device 6 stores a combination of an “access key” corresponding to the event data and a predetermined “class” indicating the importance of the event. The event type determination processing 58 adds the obtained importance class to the event data and outputs the event data to the event information cyclic buffer device 7.

FIG. 4 shows the detailed configurations of the event information cyclic buffer device 7 and the window display data collecting device 8. The event information cyclic buffer device 7 includes a write pointer calculation process 71, an event information storage process 72, a time base 73, and a cyclic memory 74.
It is configured to include and. Write pointer calculation process 7
1 is a cyclic memory 54 for writing event data
The storage pointer Wt for designating the data storage area is calculated. Whenever the event data is input, "1" is added to the current storage pointer and output to the event information storage processing 72.

The event information storage processing 72 takes in the current time data from the time base 73, adds this to the event data as the time Tb at which the event occurred,
Cyclic memory 74 designated by the storage pointer Wt
Store in the storage area of. In addition, the occurrence time T to be added
In b, there is a time delay corresponding to the processing time with respect to the time when the actual plant state changes, but the delay is practically negligible.

The window display data collection device 8 includes a window display area calculation process 81, a scroll bar main event determination process 82, a scroll display data process 83, and a scroll bar display process 84. The window display area calculation processing 81 obtains the read pointer Rp and the number Dw of event data that can be simultaneously displayed in the window based on the position n of the scroll pointer 14 and the window size Wsz input from the request reception device 9, and determines the scroll bar main The data is output to the event determination processing 82. That is, scroll pointer 1
The read pointer Rp that specifies the position of the cyclic memory 74 in which the event data specified by 4 is stored, and the number Dw of a fixed number of event data that can be displayed consecutively are calculated. Scroll pointer 1
Number of event data that can display the display width at position n of 4 D
It is preferable to correspond to w.

Here, a specific example of a method of calculating the read pointer Rp and the number Dw of event data that can be displayed will be described.
As shown in FIG. 4, the length m of the scroll bar 13 is the maximum value M of the number of data storage areas of the cyclic memory 74.
Shall correspond to. Assuming that the position of the pointer 14 is n from the lower end as a starting point, the read pointer Rp is obtained by the following equation.

Rp = Wt− (n / m) × M (where Rp ≧ 0) (1) Rp = M− {Wt− (n / m) × M} (where Rp <0) (2) In addition, the number Dw of event data that can be displayed is calculated by the following equation, where the display width of one event data of the CRT 10 is Msz and the width of the window is Wsz.

Dw = Wsz / Msz The scroll bar main event determination processing 82 uses the storage area of the cyclic memory 74 at the position corresponding to the input read pointer Rp as a reference, and the number of event data Dw
The event data stored in the storage area of the number corresponding to is read and output to the scroll display data processing 83. In the illustrated example, the latest rewritten event data group Dw is read based on the read pointer Rp. On the other hand, the determination of the main event is performed by determining the importance class added to the event data. Here, when it is determined that the main event MIi exists at the j-th number of the displayable event data number Dw, the scroll bar address Ead is obtained by the following equation and output to the scroll bar display processing 84.

Ead = (j / Dw) × m (3) The scroll bar display process 84 is performed based on the address Ead in the scroll bar corresponding to the position of the cyclic memory 74 in which the main event is stored. As shown in, the time T of the occurrence of the main event is displayed in the display area near the position of the scroll bar 14 corresponding to the Ead.
Scroll bar display data for displaying b is created and output to the display output device 11. The scroll display data processing 83 also creates display information of Dw event data and outputs it to the display output device 11.

The display output device 11 synthesizes the input scroll bar display data and the display data of the event data in the window and outputs it to the CRT 10. As a result, as shown in FIG. 1, the scroll bar 17 on which the time tag 17 representing the memory storage position of the main event is displayed is displayed on the monitoring screen.

With this configuration, according to the present embodiment, by looking at the scroll bar 14 and the time tag 17, the position of the currently displayed event data with respect to the entire event data group of the plant history can be determined. Easy to grasp. Further, the position where the main event representing the important state change in the operation / monitoring of the plant is stored can be visually recognized in relation to the position of the currently displayed event.

As a result, when it is desired to display those major events on the screen, scroll scan marks UP15, DN
By pointing 16 and moving the scroll pointer 14 to the position where the time tag 17 is displayed, a desired search can be surely performed without missing the main event data. Further, since it is not necessary to scroll the data to be searched while discriminating the data on the screen, the burden on the driving / monitoring staff is greatly reduced.

Therefore, since the scroll speed can be increased as compared with the conventional one, there is an effect that the abnormality of the plant can be found promptly and the countermeasure can be taken promptly.

Moreover, since the position of the main event data is displayed by the time tag 17, not only the main event but also the plant state at a specific time or time is searched based on the displayed time data. Can be displayed.

6 and 7 show another display method for displaying the position of the main event data. In the example shown in FIG. 6, when the scroll pointer 14 approaches the position where the main event data is stored, the scroll pointer 14
By changing the display mode of itself, the position where the main event data exists is displayed. That is, FIG.
As shown in (a) to (c), the main event is at 9:30
If the pointer 14 is moved upward in the screen display state of (a), as the display data approaches the main event, the pointer 14 is displayed as shown in (b). The color (for example, tint) gradually becomes darker. Furthermore, move the pointer 14 upward,
As shown in (c), when the main event that occurs at 9:30 comes to be displayed on the screen, the color of the pointer 14 becomes the darkest.

In this way, by changing the color of the pointer, it is possible to search without missing a main event while scrolling the screen.

The example shown in FIG. 7 is an example in which the position where the main event exists in the scroll bar is overlaid and displayed by the main event position display 18 in a display mode that can be distinguished from other areas. Therefore, by moving the pointer 14 to move to one main event position display 18 from the display state of FIG. 10A, a screen including the designated main event is displayed as shown in FIG. To be done. According to this, as in the case of FIG. 1 or FIG. 6, it is possible to reliably search without missing a main event.

In the cases of FIGS. 6 and 7, the scroll bar display data 84 is created by the scroll bar display processing 84 as in the case of FIG.

In each of the above embodiments, the display of the event history data of the plant is used as an example, and the time data is used to represent the position of the main event. However, the present invention is not limited to this. is not. In short, regarding the main plant data required for plant monitoring,
The information to that effect is added and stored in a cyclic memory or the like, and regarding the plant data to which the information is added,
Position information of the data storage area of the cyclic memory,
By outputting to the scroll display data processing 84,
The same display as in each of the above embodiments can be displayed.

[0052]

As described above, according to the present invention,
The data search on the display screen can be performed quickly and the operability is excellent, so the burden on the driver / monitor can be reduced.

As a result, it is possible to quickly deal with a plant abnormality or the like.

[Brief description of drawings]

FIG. 1 is a diagram showing a display state of a monitor screen displayed by a monitor screen display method according to an embodiment of the present invention.

FIG. 2 is an overall configuration diagram of a plant monitoring apparatus of one embodiment to which the monitoring screen display method of the present invention is applied.

FIG. 3 is a detailed configuration diagram of a main part of the embodiment in FIG.

FIG. 4 is a detailed configuration diagram of another main part of the embodiment in FIG.

FIG. 5 is a diagram for explaining a relative relationship between a scroll bar and a cyclic memory.

FIG. 6 is a diagram showing a display state of a monitor screen displayed by a monitor screen display method according to another embodiment of the present invention.

FIG. 7 is a diagram showing a display state of a monitor screen displayed by a monitor screen display method according to another embodiment of the present invention.

[Explanation of Codes] 5 Event data collection device 6 Event type storage device 7 Event information cyclic buffer device 8 Window display data collection device 9 Request reception device 10 CRT 11 Display output device 12 Window display area 13 Scroll bar 14 Pointer 15 Scroll operation Mark UP 16 Scroll operation mark DN 17 Time tag 18 Main event position display 51 Alarm status scanning processing 52 Abnormal status scanning processing 53 Contact status scanning processing 54 Status change determination processing 55 Previous alarm status storage table 56 Previous abnormal status storage table 57 Previous contact State storage table 58 Event type determination processing 71 Write pointer calculation processing 72 Event information storage processing 73 Time base 74 Cyclic memory 81 Window area calculation processing 82 Roll bar main event determination process 83 scroll display data processing 84 scroll bar display processing

Claims (6)

[Claims] 1. A search position display area having a size corresponding to the capacity of a memory in which a plurality of data representing the state of a plant is stored is set in a part of a display screen, and a position within the search position display area is set. Corresponding to the position of the data storage area in the memory, a movable pointer designating a position in the search position display area is displayed on the screen in association with the search position display area, and designated by the pointer. In the monitoring screen display method of the plant monitoring device, which displays the data stored in the data storage area corresponding to the position in the search position display area and a fixed number of data storage areas continuous to the area on the display screen, The position of the data storage area where specific data of the data is stored is displayed in association with the search position display area. Monitoring screen display method for plant monitoring equipment to be collected. 2. The display according to claim 1, wherein the display indicating the position of the data storage area in which the specific data is stored is the display and color of another area in the search position display area.
A monitoring screen display method for a plant monitoring apparatus, characterized in that the display is distinguishable by visually different display modes such as density, marks, flicker, and the like. 3. The pointer according to claim 1 or 2, when the position of the pointer approaches a position in the search position display area corresponding to a position of the data storage area in which the specific data is stored, The display mode of the plant monitoring device is changed to change the display mode. 4. The data storage according to claim 1, wherein the data is plant state history data, the specific data is main event data representing an important state change, and the specific data is stored. A method for displaying a monitoring screen of a plant monitoring apparatus, wherein the display indicating the position of the area is the time when the event data has changed. 5. The main event data according to claim 4, wherein a change in data representing a state of a plant that is captured over time is detected, and the change is defined as main event data according to a predetermined importance. Then, the monitoring screen display method of the plant monitoring device is characterized in that information to that effect is stored in the memory. 6. The search position display area according to claim 1, wherein the search position display area is a strip-shaped scroll bar displayed along a side portion of the display screen, and the display screen is displayed by moving the pointer. A method for displaying a monitoring screen of a plant monitoring device, which is characterized in that it is scrolled continuously.