JP2511016B2 - Trend graph display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a trend graph display device that enables a trend request of a plant state value.

(Prior Art) Power plants have been increasing in capacity and energy saving year by year, and the operating methods of power plants have also become complicated for this reason. In order to safely and efficiently operate a power plant like this, it is important to train operators with advanced operating skills.Therefore, a sensor training simulator failure, valve malfunction, and high flow rate In order to allow operators to analyze and recognize the spread of accidents and the characteristics of equipment by simulating plant equipment failures such as low and abnormal plant status, and to learn appropriate operating procedures, plant equipment and plant status The function of displaying values in a trend graph is emphasized.

(Problems to be solved by the invention) The arbitrary trend request of the conventional driving training simulator is
The plant equipment for which a trend is desired to be requested or the method of requesting by setting the computer internal identification name of the plant state value is used, and the items for which a trend can be requested have also been registered as the minimum necessary predetermined items. The operator is
Turbine system as a means to search for the computer internal identification name from the plant equipment or plant state value to be trended,
Search from materials or lists classified according to the system of the power plant such as generator system and water supply system, or use a computer to create a list of computer equipment identifiers of plant equipment or plant status values by system by computer. I was looking for the computer internal identification name by displaying it on the CRT display device and turning the page repeatedly until the plant device or plant status value for which the trend was requested appears. If the plant equipment or plant state value you want to trend is not registered as a trendable item, have an engineer with expertise in the power plant and software search for the computer internal identification name and register it as a trendable item. I had to get it. As described above, when making an arbitrary trend request during operation training, it is necessary to manage the system of computer internal identification name.Also, as a means to search for the computer internal identification name, search from the material or use the CRT display device. It takes extra time and effort to display a list of huge kinds of distinguished names, and it may be impossible for someone who is not accustomed to the arbitrary trend request operation to carry out the important trend of a trend. Everything was a hindrance to training efficiency. An object of the present invention is to provide a trend graph display device capable of making a trend request by instructing a plant system diagram displayed on a display means without remembering the computer internal identification name of a plant state value for which a trend request is made. To get.

[Structure of the Invention] (Means for Solving Problems) In order to achieve the above object, the present invention comprises a display means and an input means for instructing a position on the screen of the display means. In a trend graph display device for displaying the state value of a plant on the screen of the display means in a graph corresponding to the time axis, a plant system display that stores display data for displaying equipment such as valves and pumps of the plant as a system diagram The plant system display data storage unit includes a data storage unit, a data storage unit that stores a plant state value, and a conversion information storage unit that stores a correspondence between the position of the system diagram and the plant state value to be displayed in a graph. Referring to the display means to display a system diagram, the position in the displayed system diagram is designated by the input means, and a graph is displayed from the designated position. Referring to determine the conversion information storage means plant state value to provide a trend graph display device, characterized in that to display the trend graph of the plant state value by referring to the data storage means.

(Operation) When the operator displays the plant state value as a trend graph, the plant system diagram is displayed on the display means, and the plant state value desired to be displayed as the trend graph is instructed above through the input means. To do. The designated plant state value is discriminated by referring to the conversion information storage means from the designated position, and the plant state value stored in the data storage means is displayed as a trend graph.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. When an operator selects an arbitrary trend request from the function item list displayed on the CRT display device 10 which is a display means in advance to make an arbitrary trend request, the touch screen 11 which is an input means outputs an operation signal a. Interrupt the CRT dialogue processing unit 20. The CRT interactive processing unit 20 extracts the data of the plant system diagram menu from the plant system display data storage unit 30 by this operation signal a and displays it on the CRT display device 10 via the display signal b.
Next, when the operator selects the plant system diagram item for which the trend request is desired, the CRT coordinate position of the plant system item is input to the CRT interactive processing unit 20 by the operation signal a. Depending on the CRT coordinate position of this plant system item, the CRT dialogue processing unit 20
Displays the plant system diagram display data stored separately from the previous plant system diagram menu data from the plant system display data storage unit 30 and displays the plant system diagram on the CRT display device 10 via the display signal b. Trend graph output there is necessary to specify whether to trends plant state value to which trend graph numbers for display output in correspondence to any plant state value trend graph viewable output. The area where the trend graph number is specified is the trend graph number specified area in the screen of the plant system diagram displayed on the CRT display device 10 in the previous operation to distinguish it from the plant system diagram. A number is input from the touch screen 11 and the CRT coordinate of the trend graph number is input to the CR interactive processing unit 20 through the operation signal a and converted into the trend graph number and stored. After the trend graph number designation operation, by selecting the plant state value for which the trend is requested from the displayed plant system diagram, the operation signal a
The CRT coordinate position of the plant state value is input to the CRT interactive processing unit 20. The CRT dialogue processing unit 20 is trend data information of the plant state value from the trend item conversion information storage unit 31 based on the CRT coordinate position of the plant state value and the plant system diagram number currently displayed on the CRT display device 10. Extracts the "computer internal identification number", "name" of the plant status value, the "range" and "unit" of the upper limit value and lower limit value, which are the limit values of the trend graph, and other trend data excluding the "computer internal identification number" CRT display device 1 through information display signal b
Display at 0. Finally, the operator looks at the trend data information displayed on the CRT display device 10 to check if it is an item to be trended, and if it is an item to be trended, in the same way as the previous trend graph number, the plant system diagram is displayed in the plant system diagram screen. There is a trend execution designation area in distinction from the above, and when the trend execution is selected from the touch screen 11, the CRT interactive processing unit 20 is interrupted as an operation signal a. The interrupt signal generated by this trend execution causes the CRT interactive processing unit 20 to display an area corresponding to the trend graph number obtained by this series of trend request operations in the trend information storage unit 32 that stores trend data information for each trend graph. The "computer internal identification number", "name", "range", and "unit" are written, and the trend graph for which the trend request has been made this time is started for the trend display processing unit 40. The trend display processing unit 40 retrieves the trend data information from the trend information storage unit 32 for each trend graph for which a trend is requested, reads the current value of the plant state value from the plant simulation calculation unit 50 using the "computer internal identification number", and stores the trend data. Save in part 33. Here, the plant simulation calculation unit 50 is the center of the power generation operation training simulator, and the input signal d from the simulation board 60 operated by the operator is the plant simulation calculation unit.
Then, the plant simulation operation unit 50 simulates temperature, flow rate, pressure, etc. according to the simulation contents based on the input signal d from the simulation board 60, and outputs those outputs via the output signal e.
Output to the lamp and meter above 60. The trend display processing unit 40 retrieves the trend data information from the trend information storage 32, and also retrieves the trend data saved from the past to the present or the current trend data from the trend data storage unit 33 and converts it into a displayable one. Display output to the CRT display device 10 via the trend display signal c. The plant state values that can be trended here are plant changes such as valve opening and pump speed, and plant changes such as temperature, flow rate and pressure, or plant changes. Predicted values calculated based on the above, and if these are displayed on the plant system diagram, they can be trended items.

The case of using the interactive function will be described below. 2 and 3 are concrete CRTs when making a trend request.
It is a display example of a display screen. These two display screens are different only in the plant system diagram menu display portion showing the list of the plant system diagram of FIG. 2 and the plant system diagram display portion of FIG. It has a common trend request section that can display arbitrary trend information required for the selection, and can select and activate trend requests. The plant system diagram display section graphically displays plant equipment such as pumps Ma, Mb, Mc, valves Va, Vb, ... Vt, heaters Ha, Hb of the actual plant, and colors depending on the start / stop or N / FF state. Alternatively, the state value of the plant equipment is converted into a unit suitable for the equipment and displayed, and the plant state values Pa, Pb ... Pi obtained by each plant equipment are also converted into a unit suitable for the plant state value. Is displayed. The trend request unit is a graph N. Specified area, display area such as name display area as information display of plant status value for which trend is requested, range display area for upper and lower limit values that are the limit values of trend graph, unit display area for plant status value, and trend request A message display area for displaying an error message in an erroneous operation and a message for prompting reentry, and a graph N. Numeric keypad input area for inputting numerical values, etc., and "Run area, request to switch from the plant system diagram to the plant system diagram menu to activate a trend request." Menu "area, page forward / page backward of the plant system diagram menu It consists of a part that can be specified by touch screen operations such as the "previous page" and "after page" areas that are required. The display screen of Fig. 2 shows the function item list displayed on the CRT in advance when making an arbitrary trend request.
When the operator selects an arbitrary trend request, it is displayed by switching from the function item list display screen. On this display screen, the operator switches to the display screen of FIG. 3 by selecting the item of the plant system diagram for performing an arbitrary trend. Also, by selecting the "Menu" area in the trend request section, the display screen is switched to that shown in Fig. 2 and "Page before",
By selecting the "after page" area, it becomes possible to search for a menu of the plant system diagram for which a trend is requested.

As described above, when requesting an arbitrary trend, the interactive function is configured so that one screen can be easily operated with a single display screen without displaying many screens with complicated operations and searching for necessary information. . Next, the interactive function as described above will be specifically described with reference to the flowchart of FIG. 4 showing a part of the function of the CRT interactive processing unit 20 which is the main part of the present invention. The interactive processing of the arbitrary trend request is performed by the CRT interactive processing unit 20 by the operation signal a selected by the touch screen 11 from the data displayed on the CRT display device 10 by the CRT interactive processing unit 20 via the display signal b to the CRT display device. Processing is performed and the processing result is displayed on the CRT display device 10. For the optional trend request, the operator selects the optional trend request item from the function item list displayed on the CRT display device 10, and the CRT interactive processing unit 20 causes the plant system display data storage unit 3
The data of the plant system diagram menu is taken out from 0.
When the plant system diagram menu in the figure is displayed, the operation of the illustrated flowchart is started. Block 20-
1 is a process in which the operator selects a plant system diagram item for which an arbitrary trend is requested from the plant system diagram menu. The processing of block 20-2 is based on the CRT coordinate position of the plant system diagram item in the plant system diagram menu when the plant system diagram item is selected Retrieve the data of the system diagram. Also, the current values of the plant state values such as temperature, pressure and flow rate in the plant system diagram are simulated by the "computer internal identification number" of the trend data information that the trend item conversion information storage unit 31 has for each plant system diagram. The plant state value is read from the calculation unit 50, and the plant system diagram of FIG. 3 is displayed on the CRT display device 10 together with the above plant system diagram. While the current value of the plant state is being displayed on the CRT display device 10, the CRT interactive processing unit 20 reads and displays it from the plant simulation calculation unit 50 at any time. The block 20-3 indicates which trend graph the operator displays the plant state value in the graph N. This is a process of selecting by input. Trend graph N. The input method of the graph N. By touching a part on the touch screen, the next input is graph N.
Prompt for input and enter graph N.
Set and press "Execute". Block 20
-4, the torrent graph N.N. CRT dialogue processing unit 20 determines the validity of
0-10, an error message is created and displayed in the message display area M to prompt the operator to re-input. of In the graph N. Is displayed. Block 20-5 is a process in which the operator selects a plant state value for which a trend is requested. This sends the CRT coordinate position to the CRT interactive processing unit 20 by touching the plant status value portion or the plant equipment portion on the plant system diagram. Block 20-6 is a process for determining whether the plant state value selected by the operator is a trend displayable item. This is the CRT of the plant state input by the CRT dialogue processing unit 20 in block 20-5.
The combination of the coordinate position and the plant system diagram number currently displayed on the CRT display device 10 is the trend item conversion information storage unit.
If there is a match in 31, if there is no match, an error message is created in block 20-11 and displayed in the message display area M to prompt the operator to re-input. If there is, in block 20-7, the matched trend data information is taken out from the trend item conversion information storage unit 31 and the "name", "range", and "unit" of the planned state value, which is the trend data information, are displayed.
Block 20-8 is a process of waiting for the operator to input an operation signal for executing an arbitrary trend request. This is a CRT display 1
This can be done by inputting "execute" in the trend request section displayed at 0. If this is not input, it will not move to the next block. When the execution request is input, the process moves to block 20-9 and CRT.
The dialogue processing unit 20 receives the trend data information obtained in block 20-7 from the trend graph N.V. Is written in the area of the trend information storage unit 32 corresponding to, and the trend graph requested this time is activated in the trend display processing unit 40.

〔The invention's effect〕

According to the present invention, when displaying a trend graph,
The operator does not have to search for the computer internal identification name of the plant state value, and the trend graph can be displayed by instructing the plant system diagram displayed on the display means through the input means, so that the operator can be a beginner. However, it is possible to accurately know the characteristic changes in the plant state.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG.
FIG. 3 is a front view showing an example of a CRT display screen of an arbitrary trend request, and FIG. 4 is a flowchart showing a part of the function of the interactive request. 10 …… CRT display device 11 …… Touch screen 20 …… CRT dialogue processing unit 30 …… Plant system display data storage unit 31 …… Trend item conversion information storage unit 32 …… Trend information storage unit 33 …… Trend data storage Part 40 …… Trend display processing unit 50 …… Plant simulation calculation unit 60 …… Simulation operation panel

Claims (1)

(57) [Claims] 1. A trend graph display comprising display means and input means for designating a position on the screen of the display means, wherein the state value of the plant is displayed as a graph on the screen of the display means in correspondence with the time axis. In the apparatus, plant system display data storage means for storing display data for displaying equipment such as valves and pumps of a plant as a system diagram, data storage means for storing plant state values, position and graph of the system diagram A conversion information storage means for storing the correspondence with the plant state value to be displayed, referring to the plant system display data storage means to display a system diagram on the display means, and the position in the displayed system diagram. Is designated by the input means, the plant state value to be displayed in a graph from the designated position is determined by referring to the conversion information storage means, and the data storage means is Trend graph display device, characterized in that to display the trend graph of the plant state value by irradiation.