JP3238221B2 - Trend graph display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trend graph display device, and more particularly to a trend graph display device suitable for simultaneously displaying a large number of trend graphs on a single operation monitoring display screen in a power plant or the like.

[0002]

2. Description of the Related Art For example, in a nuclear power plant, a thermal power plant, etc., operation of the plant is performed by a central control panel installed in a control room of the plant.
The central control panel is provided with monitoring devices, recorders, operation switches, adjustment devices, and the like required for operation and operation of the plant. In recent years, such plants have tended to be large-scale, and accordingly, the area of the central control panel has tended to increase. Therefore, a computerized control panel has been developed which can collectively display plant information using a color CRT display device that makes full use of a process computer.

[0003] Of these instruments required for operation,
In particular, with regard to a recorder, in most cases, a trend graph is read on a color CRT display device to read a change tendency of a plant. However, the size of a display portion that can be displayed on a color CRT display device is limited, and a conventional display device is limited. When a large number of process amounts are displayed on the same color CRT display device like a recorder, a method of dividing and displaying a monitoring screen into a plurality of pieces is adopted.

FIG. 8 shows a configuration of a trend graph display device arranged in a power plant or the like as an example of such a conventional trend graph display device.

In FIG. 1, reference numeral 1 denotes a process input device for receiving an input signal from a sensor indicating the state of each part of the plant. An input command is output from the data input unit 2 to the process input device 1, and predetermined data is input from the process input device 1 to the data input unit 2 based on the input command.

The data input to the data input unit 2 is converted into monitoring data for a computer by the input data editing processing unit 3, and thereafter, the monitoring data is converted by the trend data sampling processing unit 4. For example, the data is sampled as trend graph display data every five seconds and stored in a dedicated memory area of the computer. On the other hand, an operator input device 9 which is composed of a touch panel or the like and captures an operator operation state is provided on a display device 8 composed of a CRT or the like. The operator operation state of the operator input device 9 is used as operator input information. The data is input to the trend display request processing unit 6 via the operator input processing unit 7. When the operator input information is a trend display request, the trend display request processing unit 6 requests the trend data display processing unit 5 to display a trend graph, and the trend data display processing unit 5 Based on the graph display request, the aforementioned trend graph display data is converted into output data for the display device 8, and a trend graph is displayed on the display device 8.

Here, a display example of a trend graph on the display device 8 is shown in FIG. In the example shown in FIG. 9, four trend graphs T-1 to T-4 of generator power, reactor water level, condenser internal pressure, and core flow rate are displayed in a trend graph display area K1 provided in the lower part of the figure. Is displayed, and a trend display point information display area K provided above the
2, the trend display point information of each trend graph, that is, the input point name (in FIG. 9, a generator, a condenser, etc.) J1, the input point code (in FIG. 9, GA000, T
A100, etc.) J2, current value (1099, 5 in FIG. 9)
8.5, etc.) J3, input unit (MW, MMHG in FIG. 9)
Etc.) J4 and the like are displayed.

Then, for example, a trend graph T-3
In the case of (condenser internal pressure), trend display point information (in this case, condenser, TA100, 58.5, MMHG
Etc.) The display color N1, the graph display color N3, the trend display point information identification number (in this case, 3), the display color N2, and the graph identification number (in this case, 3) the display color N4 are associated with each other, on one screen. Thus, the trend graph T-3 and the trend display point information can be checked in association with each other.

However, in such a display, as the number of trend graphs T-1 to T-4 increases, the number of trend display point information increases, which makes it difficult to display the trend display point information. For this reason, it is responded by reviewing the screen configuration such as creating a plurality of the same screens.

[0010]

In the above-mentioned conventional trend graph display device, a large number of inputs of 20 to 30 points are usually input on the same plane, as in a dot recording system recorder conventionally used in power generation plants. If it is necessary to display the information, the display area is limited, so that the trend display point information corresponding to a large number of input of 20 to 30 points and the number of display points of the trend graph corresponding to one to one are limited. Point information and trend graph could not be displayed in the same display area on the same screen. For this reason, the display is performed by dividing the display screen or the display area, but in this method, simultaneous comparison of data is difficult, and it is difficult to compare and monitor a plurality of parameters having similar change trends. I was

Further, in the conventional trend graph display device, as the number of trend graphs increases, graph display colors for identifying the trend graphs are frequently used, so that the visibility of the trend graphs is reduced, and the trend display points are reduced. Deletion of information has caused a problem that the input point name, the current value, and the like cannot be confirmed.

The present invention has been made in view of such a conventional situation, and it is possible to simultaneously display a large number of trend graphs on one display screen and to perform display with excellent visibility. It is an object of the present invention to provide a trend graph display device capable of performing the above.

[0013]

That is, a trend graph display device according to the present invention is a trend graph display device configured to display a plurality of trend graphs on one display screen. An operator input processing means configured to be capable of inputting selection information for selecting a desired trend graph by designating the display mode from among trend graphs previously divided into a plurality of groups for each; A trend that identifies a selected group based on the selection information from the operator input processing means and outputs selected group information, and counts the number of times the selection information is continuously input and outputs the count as priority information. Data group conversion processing means, and the selected group information from the trend data group conversion processing means. And selecting a corresponding one of the trend graphs from the group by comparing the priority information with the display priority set for each trend graph. Processing means, display information for changing the display mode of the trend graph selected by the trend graph selection processing means, and display information change processing means for generating display information for displaying information on the trend graph. Characteristic trend graph display device.

[0014]

In the trend graph display apparatus of the present invention having the above-described structure, for example, several groups (for example, 3 to 6) of a plurality of groups (for example, 4 to 6) depending on the display mode such as display color.
Group), a total of about 20 to 30 trend graphs are displayed on a single screen, and when monitoring is performed by focusing on a specific trend graph, the operator inputs the trend graph using an operator input processing unit. By inputting the display color and the like, the trend graph in the group is selected in the order of the display priority, the display color and the like are changed, and the information (trend display point information) on the render graph is displayed. Therefore, it is possible to perform a display with excellent monitoring and visibility.

[0015]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration of a trend graph display device according to an embodiment of the present invention. In FIG. 1, reference numeral 100 denotes a trend graph selection unit. It comprises a change processing section 101, a trend graph selection processing section 102, and a display information change processing section 103.

The other parts are configured similarly to the conventional trend graph display device shown in FIG. 8, and data is input from the process input device 1 based on an input command from the data input unit 2. This data is converted into monitoring data of the computer by the input data editing processor 3,
Thereafter, the monitoring data is sampled by the trend data sampling processing section 4 as, for example, trend graph display data every five seconds, and stored in a dedicated memory area of the computer. When a trend display request is input from the operator input device 9 including a touch panel or the like to the trend display request processing unit 6 via the operator input processing unit 7, the trend display request processing unit 6
A trend graph display request is made to the trend data display processing unit 5, and the trend data display processing unit 5 converts the above-described trend graph display data into output data for the display device 8 based on the trend graph display request. The display device 8 is configured to display a trend graph.

On the other hand, the trend data group change processing unit 101 constituting the trend graph selection unit 100
The color selection information Mi (input from a trend selection area K3 on the display screen, which will be described later) is extracted from the operator input information input by the operator input processing unit 7, and is shown in FIG. Based on such color group correspondence information INF-1, color selection information M
In addition to determining the group information G1-i corresponding to i, the number of times the color selection information Mi is continuously selected is cyclically counted, for example, from 1 to 6 (the maximum is the number of graphs in the group), thereby designating the nomination priority. Creates PPi and, together with group information G1-i, trend graph selection processing unit 1
02.

The trend graph selection processing unit 102
Is the group information G1-i sent from the trend data group change processing unit 101 and the trend group information G2- in the trend display information TD-i as shown in FIG.
i, the nomination priority PPi and the display priority PRi are sequentially compared, and the display information TD-i in which both of them are coincident with each other.
Is selected, and the selected trend display information TD-i is sent to the display information change processing unit 103.

Further, the display information change processing unit 103 converts the trend display color information Ci in the trend display information TD-i sent from the trend graph selection processing unit 102 into
It is changed to the selected display color information stored in advance in the computer, and the process input number I in the trend display information TD-i is changed.
Point display information PD defining an index for display data search of trend display point information is created from Di, and sent to trend display request processing unit 6.

FIG. 4 shows the point display information PD.
FIG. 5 shows an example of a display screen in this embodiment.

In FIG. 4, JJ1 to JJ5 are information for displaying the input point name J1, the input point code J2, the current value J3, and the input unit J4 on the display device 8 shown in FIG. 2 shows a data search index of the data. The trend display request processing unit 6 includes a display information change processing unit 103
, And requests the trend data display processing unit 5 to output a trend graph, whereby a display based on the trend display information TD-i and the point display information PD is performed.

As shown in FIG. 5, the display screen includes
A trend graph display area K1, a trend point information display area K2, and a trend selection area K3 are provided. A number of trend graphs T-1 to Ti are displayed in the trend graph display area K1, and these trend graphs T-1 to Ti are, for example, group 1 (T-1, T-I). 5), group 2 (T-2, T-
4), group 3 (T-3, T-6), group 4 (T-3
-7, T-8). Also, these groups include, for example, group 1 = green,
Display colors CL1 such as group 2 = yellow, group 3 = blue, group 4 = red, etc. are set and displayed in advance.

Next, the operation of the trend graph selecting section 100 will be described in detail with reference to the flowchart of FIG.

The operator, for example, among the trend graphs T-1 to Ti shown in FIG. 5, for example, an input point name J1, an input point code J2, a current value J3, an input unit of a specific trend graph T-3 When it is desired to display J4 in the trend point information display area K2 on the display device 8, the color selection area CT-4 (green) is selected from the color selection areas CT-1 to CT-4 of the trend selection area K3, An input is made from the operator input device 9 (500).

When the color selection information Mi is input as described above, first, the following process by the trend data group change processing unit 101 is performed.

First, the trend data group change processing unit 101 extracts the input color selection information Mi via the operator input processing unit 7 (501).

Next, the color group correspondence information INF-1 as shown in FIG. 2 is searched (502), and the group information G corresponding to the inputted color selection information Mi (M1 = green in this case) is retrieved.
1-i (in this case, G1-1) is determined (503).

If the input color selection information Mi does not exist in the color group correspondence information INF-1, group information having no #FF or the like is selected instead of the group information G1-i (504).

At the same time, the nomination priority PPi is calculated by counting the number of times the group information G1-i is continuously input (505).

Next, the following processing by the trend graph selection processing unit 102 is performed.

The trend graph selection processing unit 102 operates as shown in FIG.
The trend group information G2-i and the display priority PRi in the trend display information TD-i as shown in FIG.
06), the extracted trend group information G2-i and the trend data group change processing unit 10 as described above.
1 is compared with the group information G1-i determined in Step 1 (in this case, G1-1 = G2-1).
Is (507), then the display priority PRi and the nomination priority PP
It is determined whether or not i matches (508).

On the other hand, if the trend group information G2-i and the group information G1-i do not match (507), or if the display priority PRi and the nomination priority PPi do not match (508), the next trend The process of extracting the trend group information G2-i and the display priority PRi in the display information TD-i (506), and comparing the trend group information G2-i with the group information G1-i as described above (507). The process (508) of comparing the display priority PRi and the nomination priority PPi is performed for all the trend display information T.
The processing is sequentially performed for Di (509).

Then, the trend group information G2-i matches the group information G1-i, and the display priority PR
trend display information T in which i and nomination priority PPi match
When Di (in this case, TD-1) is found, the trend display information TD-i is sent to the display information change processing unit 103, and then the display information change processing unit 10 as described below is displayed.
3 is performed. If there is no matching trend display information TD-i, the trend display information TD-i
Terminates the processing with no selection (510). The display information change processing unit 103 includes a trend graph selection processing unit 102
Receiving the trend display information TD-i (TD-1 in this case) sent from
i, the trend display color information Ci (in this case, C-1 =
Green) to the predetermined selection display color information,
For example, the trend display color information C-1 = white or the like (51
1).

Next, from the process input number ID-i in the trend display information TD-i, the storage area of the information of the input point name J1, the input point code J2, the current value J3, and the input unit J4 is usually stored in the process input number. Input point name J for number ID-i
1, the input point code J2, the current value J3, and the data size of the input unit J4 are multiplied to obtain the point display information P
D (512), and in the trend display request processing unit 6,
Trend display information TD-i and point display information PD
And the process is terminated (513).

As a result, the operator can recognize the selected trend graph by changing the selected trend graph to the selected display color (= white) in the trend graph display area K1. It is possible to display point display information on the displayed trend graph.

As described above, according to the trend graph display device of this embodiment, a plurality of display colors (red in this embodiment, red display in this embodiment) are displayed in the trend graph display area K1 of the display device 8 according to the purpose of operation monitoring. A large number of trend graphs, for example, 20 to 30 in total, are displayed which are grouped by blue, yellow, and green).

When the plant operator performs monitoring by paying attention to a specific trend graph, the operator inputs the display color from the operator input device 9 a predetermined number of times, thereby displaying the trend of the input display color group. One of the graphs is sequentially displayed in a specific selected display color (white in this embodiment) in the order of display priority (corresponding to the number of consecutive inputs), and the trend graph is displayed in the trend point information display area K2. The information about is displayed.

Therefore, a large number of trend graphs can be simultaneously displayed on one display screen, and a display with excellent visibility can be performed.

FIG. 7 shows the configuration of a trend graph display device according to another embodiment. The trend graph display device of this embodiment has an automatic priority setting processing unit 104 in addition to the configuration of the above-described embodiment. It has.

This automatic priority setting processing unit 104
The display priority PRi in the trend graph display information TD-i shown in (1) is automatically determined by analyzing the sampling data of the trend data sampling processing unit 4.

That is, for example, when the first notification of the group information G1-i is made from the trend data group determination processing unit 101, the minimum value and the maximum value are determined from the latest sampling data of the trend graph belonging to this group. The priorities are set to 1 and 2, respectively. Then, the minimum value and the maximum value are similarly determined for the remaining data excluding these data, and the priorities are set to 3 and 4, respectively, and such a priority determination process is repeated. Thus, the display priority for determining the order in which the trend information is extracted in the trend information extraction processing of the trend graph selection processing unit 102 is changed to the priority determined by such processing, such that all priorities are determined.

Thus, for example, when the setting parameters of the trend graph have the same changing tendency, when the setting parameter of the specific trend graph changes, this trend graph can be selected more quickly.
Operability and monitoring are further improved.

In order to determine these priorities, for example, a method of determining the priority in descending order of the rate of change per unit time by calculating a rate of change, or a method of determining the priority in descending order of the deviation from the average value And other known methods.

In each of the embodiments described above, the case where the trend graph is grouped by the display color has been described. However, the present invention is not limited to such an embodiment, and includes, for example, line types, solid lines, broken lines, Needless to say, it is also possible to perform grouping other than display colors, such as grouping by dotted lines, thick lines, and the like.

[0046]

As described above, according to the trend graph display device of the present invention, a large number of trend graphs can be simultaneously displayed on one display screen, and a display with excellent visibility is provided. be able to.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a trend graph display device according to one embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of color group correspondence information.

FIG. 3 is a diagram showing a configuration of trend display information.

FIG. 4 is a diagram showing a configuration of point display information.

FIG. 5 is a view showing an example of a display screen of the trend graph display device of FIG. 1;

FIG. 6 is a diagram for explaining the operation of the trend graph display device of FIG. 1;

FIG. 7 is a diagram showing a configuration of a trend graph display device according to another embodiment.

FIG. 8 is a diagram showing a configuration of a conventional trend graph display device.

FIG. 9 is a diagram showing an example of a display screen of a conventional trend graph display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Process input device 2 Data input part 3 Input data edit processing part 4 Trend data sampling processing part 5 Trend data display processing part 6 Trend display request processing part 7 Operator input processing part 8 Display device 9 Operator input device 100 Trend graph selection part 101 Trend data group change processing unit 102 Trend graph selection processing unit 103 Display information change processing unit

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G01D ^7/ 00-7/12 G05B 23/02 G05B 23/00 G09G 5/00-5/40

Claims (1)

(57) [Claims] 1. A trend graph display device configured to be able to display a plurality of trend graphs on a single display screen, wherein a trend graph is divided into a plurality of groups in advance for each display mode of the trend graph. An operator input processing means configured to be capable of inputting selection information for selecting a desired trend graph by designating the display mode; and selecting based on the selection information from the operator input processing means. A trend data group conversion processing unit that identifies a group and outputs selected group information, counts the number of times that the selection information is continuously input, and outputs it as priority information, and the trend data group conversion processing unit. And selecting a corresponding group based on the selected group information of The trend graph selection processing means for comparing the information and the display priority set for each trend graph to select one corresponding trend graph from the group; and A trend graph display device comprising: display information for changing a display mode of a trend graph; and display information change processing means for generating display information for displaying information on the trend graph.