JPH085415A - Display apparatus for combined cycle power plant - Google Patents

Abstract

PURPOSE:To make comparison work for process data among shafts easy and improve the plant monitoring efficiency by appointing certain process data corresponding to each shaft among a plurality of shafts on a display screen and editing and displaying the corresponding process data of all the shafts. CONSTITUTION:A system diagram of a gas turbine of a shaft (e.g. two-axile) is displayed on a CRT display screen 7. In the case the set value of a waste gas temperature is low and it is needed to be compared with the information of another shaft and be confirmed, the display part 101 of the corresponding process data is appointed by touch or cursor input. Then, the display part 101 searchs the address information alloted to the process data based on the coordinates on the screen. Based on the address information, the corresponding address information of another shaft is obtained and based on the obtained address information, the process information of the shaft is collected. Further, based on the collected process data on the same display screen 101, the size of a display area and the display position are determined on a window display 103.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined cycle power plant display device for displaying and monitoring the process amount of each axis of a combined cycle power plant having a plurality of axes.

[0002]

2. Description of the Related Art In combined cycle power generation,
The process data for each axis is monitored in order to activate each axis one after another. Further, after the start of each axis is completed, the process data corresponding to each axis has almost the same value, and the monitoring is also frequently performed by comparing the data between the axes.

Conventionally, when it is desired to view the process data between other axes, the process data which seems necessary are selected in advance, and a screen for displaying the data between the axes is created.
The screen was switched and displayed. Alternatively, a method has been adopted in which a monitoring screen for a certain axis is displayed, and then the screen is switched to a similar screen for another axis for display, and the process data of each axis is stored and compared.

[0004]

In the above-mentioned prior art, when it is desired to see the other axis information of a part of the process data of the monitoring screen for a certain axis, the common screen is used for switching. You have to search for process data. Also, the more the information of the axis data increases, the more the number of common screens increases, and it is necessary to search for which common screen the process data corresponding to is displayed, which requires a long operation time. Also, with the method of switching to the same monitoring screen for other axes, the process data of the existing axes must be stored and compared, and in case of emergency an operability is poor and monitoring is insufficient. Was becoming.

Further, when the trend graph of the process data corresponding to another axis is desired to be viewed, it cannot be viewed unless it is switched to the trend display graph or registered in the trend display graph in some cases. It was inadequate.

In combined cycle power generation, comparison of process data between other axes is a very important factor from the viewpoint of overall monitoring. In particular, when all the axes are in the same plant state, but when the process data of a certain axis is low, it means that the axis is in an abnormal state, which may lead to an accident.

In that sense, comparison between other axes can be made faster.
The important issue is how to easily perform it, and how to display the information of other axes corresponding to the process data without switching the screen.

An object of the present invention is to provide a display device for a combined cycle power plant, which facilitates the process of comparing the process data between the other axes and improves the monitorability of the plant.

[0009]

A display device of a combined cycle power plant according to the present invention for achieving the above object has a certain process data on a display screen provided corresponding to each axis of a plurality of axes. By designating, the process data of all the axes corresponding to the designated process data is edited and a means for displaying on a part of the display screen is provided.

The above means edits the process data of all axes corresponding to the designated process data by designating a certain process data on the specific display screen among the display screens. It may be displayed on a part of the specific display screen.

Further, the above-mentioned means, by designating a certain process data on a specific display screen among the above-mentioned display screens, the trend data of all the axes corresponding to the designated process data over a predetermined time. May be edited and displayed on a part of the specific display screen.

The edited process data or trend data may be displayed in a window. Further, it is preferable to display these data in an area on the display screen that does not interfere with the monitoring of the process data.

[0013]

According to the configuration of the present invention, when process data of a certain axis is requested, process data of all axes corresponding to the process data can be collected and displayed on a part of the display screen. It is possible to easily and quickly monitor desired process data between other axes and compare them without switching from the screen displaying the state of the axes to another display screen.

Further, by displaying these collected process data on a part of a specific display screen, while monitoring all process data of a specific axis, desired process data of other axes can be monitored and monitored. It is possible to make those comparisons easily and quickly.

Further, by displaying the trend data corresponding to the designated process data on a part of the display screen, it is possible to monitor the state change of the process amount of all the axes by comparing between the respective axes. Therefore, it is possible to quickly grasp the abnormality of the operating state of the shaft.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As an example of a display device of a combined cycle power plant which is an embodiment of the present invention, a series control panel 100 as shown in FIG. 2 is provided in a central control operation room, and about four CRT displays are provided therein. The device 7 is installed to monitor the entire plant and to instruct and operate each device. For example, even for a 7-axis combined cycle power plant, 1
One CRT display device is used by switching to each axis.
We are trying to centralize information. Therefore, in one CRT display device, the amount of information is increased without switching the screen by dividing the screen or using window display.

In the combined cycle power plant,
Since the plant is started for each axis, plant monitoring for each axis is also an important function. However, once each axis is activated, the function of axis-to-axis data comparison, which monitors each axis for abnormalities by performing mutual comparison for each axis, becomes an important element.

The embodiment of the present invention focuses on the method of comparing the data between the axes and aims at how easy it is to understand and how to easily understand the data between the axes.

FIG. 3 shows a computer system configuration diagram in the combined cycle power plant. A network computer 1 that controls all information, a network PI that directly inputs and outputs process data to the network computer 1, a network PI / O device 2, a network 3 that connects the network computer 1 and a transmission connection device 4 of each axis, Transmission connection device 4 for each axis connected to the network 3, each axis master computer 5 for managing information on the transmission connection device 4 and each axis, and connection between each axis transmission connection device 4 and the axis master computer 5. It is composed of a control device 6 for each axis to be operated and a CRT display device 7 for displaying and monitoring plant information.

There are two methods until each process data is input to the series computer. In the first method, data is input to each control device 6, and from there, data is sent to the transmission connection device 4 of each axis. The transmission connection device 4 for each axis sends the data to the network 3,
From there, the data is sent to the series computer 1. Another method is to connect to the series computer 1,
Each process data is directly taken into the O device 2 and sent to the series computer 1. The process data sent to the series computer 1 is sent according to the axis-by-axis database structure specific to the combined cycle. FIG. 4 illustrates the method of collecting information on other axes by setting the rules for the database structure for each axis.

[0021] In a combined cycle power plant, it is basically considered that there is one shaft after another, which is equivalent to one shaft. Actually, each axis has some characteristics, but series computer 1
The number of process data to be loaded into is unchanged. Taking advantage of the fact that the number of process data does not change,
Rules are set in the structure of the process database 104.

Each process data is managed by a number called an input point number. Actually, the process data on the CRT display screen 7 is stored in each process database 1
Collected from 04 and displayed. Input point number management information 102 is displayed in the process data display portion 101 on this screen.
Is included. Address information corresponding to the axis number and each axis process data is stored therein. Here, since the number of process data of each axis is common, the process data corresponding to each axis are configured in the same order (address order). If the process database 104 is created according to this rule, the process data of a certain axis is stored at the same address in the other axis, and the process data corresponding to the other axis can be easily collected. With the above processing, it is possible to collect process data corresponding to another axis from one process data.

Next, one embodiment of the display device of the combined power generation plant according to the present invention will be specifically described with reference to FIG.

In FIG. 1, a system diagram of a gas turbine of a certain axis (for example, two axes) is displayed on a CRT display device screen 7. Here, it seems that the set value of a certain exhaust gas temperature is low, and we would like to make comparisons and confirmations using information from other axes.
The display portion 101 of the corresponding process data is designated by touch or cursor key input. Next, the display portion 101 of the designated process data is the display portion 1
The address information assigned to the process data is searched from the coordinate 01 on the screen. Then, based on the address information, the corresponding address information of the other axis is obtained, and the process data of the other axis is collected from the address information.

By the above operation, the process data of other axes can be collected. Next, a window display 103 is displayed based on the process data collected on the same CRT display screen.
Determine the size of the display area. This is because the size of the display area is set in several patterns depending on the difference in the display information of analog data and digital data, and the difference in the number of characters in the input point name, and the optimum size of the display area is selected from the patterns. To decide. The size of the window should be as compact as possible in consideration of legibility. After determining the size of the display area, the display position is determined next time. Regarding the display position, the CRT display screen is divided into four parts, and the part which does not overlap with the process data display part 101 of the current display screen is determined. If this process data display part 101 is on the upper screen, a window is displayed on the lower screen. If 103 is displayed and the process data display portion 101 is on the lower screen, rules such as displaying the window display 103 on the upper screen are provided to determine the display position.

After the above processing, the process data window display 103 is displayed on the current CRT display screen 7. This makes it possible to easily compare the information of other desired axes in a window display. Further, by changing the color of the self-axis to distinguish it from the other axes, the object of comparison becomes clearer and the monitorability is improved.

Specifically, FIG. 5 shows a flowchart of the processing of the present invention.

First, it is assumed that the plant is monitored on a screen such as a system diagram which shows a simulated plant on the CRT display screen. Therefore, in step 201, a touch request or key input with a cursor is performed on the process data of interest. Step 2
In 02, the computer retrieves the axis number and address information of the corresponding process data from the touch coordinates or the cursor position. Then, in step 203, the database corresponding to the other axis is searched from the address information. From the address position, step 204 collects the process data of each axis. By the above processing, if the configuration of the database for each axis is determined, it becomes possible for the computer to easily collect the process data of each corresponding axis.

Next, a window is displayed on the CRT display screen 7. In step 205, the amount of display information is determined from the process data and the input point name. Then, in step 206, the optimum display area size according to a certain pattern is determined from the display information amount. Once the size of the display area is determined,
In step 207, the display position is decided. In this step 207, the display position is determined by dividing the screen into four parts at positions where the touch coordinates of the process data of interest do not overlap. Then, based on the information of the processing up to now, step 20
At 8, the process data window between the other axes is displayed on the CRT screen. By performing the above processing, comparison of process data between other axes can be easily monitored in the window.

FIG. 6 shows an example in which trend data of another axis is displayed this time. As in the case of FIG. 1, a touch request is issued for the display portion 101 of the process data of interest. Therefore, the input point number of the other axis is calculated and the history data of that input point is collected. Then, the trend graph window display 301 is performed based on the history data at a position that does not overlap the corresponding touch position according to the size of the predetermined trend graph display window.

The trend graph window display is effective for trend monitoring and status change of other axes, and the monitorability of the plant is improved by further improving the visibility.

[0032]

According to the present invention, without switching the screen,
Only the portion of the process data to be compared can be displayed in the window, and desired process data can be compared and monitored easily and quickly.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an embodiment of a display device of a combined cycle power plant according to the present invention.

FIG. 2 shows an outline drawing of a series control panel to which the embodiment of the present invention in FIG. 1 is applied.

FIG. 3 is a configuration diagram of a computer system to which the embodiment of the present invention in FIG. 1 is applied.

FIG. 4 is a diagram illustrating a method of collecting process data corresponding to another axis according to an embodiment of the present invention in FIG.

5 is a diagram illustrating a processing flow of a computer for displaying process data according to an embodiment of the present invention in FIG.

FIG. 6 is a diagram for explaining another embodiment of the display device for the combined cycle power plant according to the present invention.

[Explanation of symbols]

7 ... CRT display screen, 101 ... Process data display portion, 102 ... Input point number management information, 103 ... Process data window display.

Claims (3)

[Claims] 1. A display device of a combined cycle power plant, which has a plurality of axes, and displays a plurality of process data of each axis on a display screen provided corresponding to each of the plurality of axes, By designating a certain process data on the display screen, means for editing the process data of all axes corresponding to the designated process data and displaying it on a part of the display screen is provided. Display device for combined cycle power plant. 2. A display device of a combined cycle power plant, which has a plurality of axes, and displays a plurality of process data of each axis on a display screen provided corresponding to each axis of the plurality of axes, By designating a certain process data on a specific display screen among the display screens, the process data of all the axes corresponding to the designated process data is edited to be a part of the specific display screen. A display device for a combined cycle power plant, which is provided with a display means. 3. A display device of a combined cycle power plant, which has a plurality of axes, and which displays a plurality of process data of each axis on a display screen provided corresponding to each of the plurality of axes, By designating a certain process data on a specific display screen among the display screens, the trend data of all the axes corresponding to the designated process data over a predetermined time is edited and the specific display screen of the specific display screen is displayed. A display device for a combined cycle power plant, characterized in that a display means is provided in part.