KR20230104871A - Display device, display method, control device, control method and computer program - Google Patents

Abstract

A display device, a display method, a control device, a control method, and a computer program capable of displaying the operating state of a plant using a plurality of graphs and contributing to analysis of the operating state from various viewpoints are provided. As a display device 50 that displays the operating state of the plant 1, a plurality of types of graphs representing the operating state of the plant 1 are displayed as options in the first area A1, and the plant is operated using the graphs. The state is displayed in the second areas B1 and C1.

Description

Display device, display method, control device, control method and computer program

The present invention relates to a display device, a display method, a control device, a control method, and a computer program.

Conventionally, various techniques for monitoring the operating state of a plant have been proposed. For example, by comparing a process value obtained time-sequentially from a monitoring target point in a plant with a corresponding limit value, the time point at which the process value exceeds the limit value is determined, and the process value within the time range set based on that point in time is determined. and a plant monitoring device that time-sequentially displays corresponding limit values on a display device (see Patent Document 1).

Patent Document 1: Japanese Unexamined Patent Publication No. 2016-115195

In the technology disclosed in Patent Literature 1, process values can be displayed as a time-sequential graph, but it is sometimes difficult to determine whether the operating state of the plant is normal or abnormal with only such a single type of graph.

The present invention has been made in view of such circumstances, and a display device, display method, control device, which can display the operating state of a plant using a plurality of graphs and can contribute to analysis of the operating state from various viewpoints, Its purpose is to provide control methods and computer programs.

A first aspect of the present invention is a display device for displaying the operating state of a plant, wherein a plurality of types of graphs representing the operating state of the plant are displayed as options in a first area, and the operating state of the plant is displayed using the graphs. It is displayed in the second area. In this display device, when a specific graph is selected from among a plurality of types of graphs displayed in the first region, the operating state of the plant can be displayed in the second region using the specific graph.

A second aspect of the present invention is a display method for displaying the operating state of a plant, in which a plurality of types of graphs representing the operating state of the plant are displayed as options in a first area of a predetermined screen, and in the option display step and an operating state display step of displaying the operating state of the plant in a second area using any one of a plurality of types of displayed graphs. In the operating state displaying step of the present display method, when a specific graph is selected from a plurality of types of graphs displayed in the option displaying step, the operating state of the plant can be displayed in the second area using the specific graph.

A third aspect of the present invention is a control device for controlling a display device for displaying the operating state of a plant, comprising: an acquisition unit for acquiring plant process data; A generation unit that generates different types of graphs, and a display control unit that displays a plurality of types of graphs as options in the first area of the display device and displays the operation status of the plant in the second area of the display device using the graphs. is to provide The control device may further include a reception unit that accepts selection of a graph, and the display control unit, when receiving a selection of a specific graph from among a plurality of types of graphs displayed in the first area, to the acceptance unit, uses the specific graph. The operating state of the plant can be displayed in the second area.

A fourth aspect of the present invention is a control method for controlling a display device for displaying the operating state of a plant, comprising: an acquisition step of acquiring plant process data; and displaying the operating state of the plant based on the process data acquired in the acquisition step. A generation process of generating a plurality of types of graphs, and display control of displaying the plurality of types of graphs as options in the first area of the display device and displaying the operation status of the plant in the second area of the display device using the graphs that includes the process. The control method may further include a reception step of accepting selection of a graph. In the display control step, when a selection of a specific graph from among a plurality of types of graphs displayed in the first area is received in the reception step, the specific graph is selected. The operating state of the plant can be displayed in the second area using .

A fifth aspect of the present invention is a computer program that causes a computer to execute a control method for controlling a display device for displaying the operating state of a plant, the control method comprising: an acquisition step of acquiring plant process data; A generation process of generating a plurality of types of graphs representing the operating state of the plant based on process data, displaying the plurality of types of graphs as options in the first area of the display device, and displaying the operating state of the plant using the graphs It includes a display control process of displaying a display in the second area of the display device. The control method executed by the present computer program may further include a reception step of accepting selection of a graph, and in the display control step, the selection of a specific graph among a plurality of types of graphs displayed in the first area is received in the reception step. In one case, the operating state of the plant may be displayed in the second area using a specific graph.

By adopting such a configuration and method, a plurality of types of graphs representing the operating state of the plant can be displayed as options in the first area of the display device. Therefore, the operator can select any one graph among a plurality of types of graphs displayed in the first area of the display device, and display the operating state of the plant in the second area of the display device using the selected graph. Therefore, since the operating state of the plant can be displayed using a plurality of graphs, it can contribute to the analysis of the operating state from various viewpoints.

As the plurality of types of graphs in each aspect of the present invention, those showing the history of process data indicating the operating state of the plant can be employed. In addition, as a plurality of types of graphs, those showing common process data in different modes (e.g., both graphs showing the history of process data in a time-sequential manner and graphs showing the history of process data in a non-time-series manner) are included. to do) can be employed.

In this way, the operating state of the plant (for example, the operating state with a high possibility of gradually transitioning to an abnormal state), which cannot be found only with the time series graph, can be identified by the non-time series graph, and the plant abnormality factor can be identified at an early stage and preventive measures can be taken, contributing to the continuation of stable operation of the plant.

The display control unit in the third aspect of the present invention can store the graph generated by the generation unit in the storage unit, and in the display control steps in the fourth and fifth aspects of the present invention, the graph generated by the generation unit can be stored in memory.

Employing such a configuration and method, graphs created and used in the past can be stored. Therefore, for example, by associating and storing an operator and a graph used by the operator, it is possible to refer to a graph used by an operator with high familiarity in the past.

The display control unit in the third aspect of the present invention can read the graph stored in the storage unit and display it in the second area of the display device, and in the display control steps in the fourth and fifth aspects of the present invention , the graph stored in the storage unit can be read and displayed on the second area of the display device.

By adopting such a configuration and method, for example, a graph used in the past by a specific operator with high familiarity (a graph in which various items are set) can be read and the graph can be displayed in the second area of the display device. In this way, even if the operator has relatively low familiarity, it is possible to know which graph the operator with high familiarity has arranged (set items) and used in the past. Therefore, learning of monitoring points becomes possible, and driving familiarity can be easily improved.

According to the present invention, it is possible to display the operating state of a plant using a plurality of graphs, and to provide a display device, a display method, a control device, a control method, and a computer program that can contribute to analysis of the operating state from various points in time it becomes possible

1 is a schematic diagram showing the overall configuration of a plant to be monitored in an embodiment of the present invention.
Fig. 2 is a diagram showing the functional configuration of a driving support system in an embodiment of the present invention.
Fig. 3 is a diagram showing an example of a graph selection setting screen displayed on the display device according to the embodiment of the present invention.
4 is a diagram showing an example of a time series graph screen displayed on the display device according to the embodiment of the present invention.
5 is a diagram showing an example of a non-time-series graph screen displayed on the display device according to the embodiment of the present invention.
6 is a diagram showing the physical configuration of a driving support system in an embodiment of the present invention.
7 is a flowchart showing an example of a control method according to an embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described using drawings. The following embodiments are examples for explaining the present invention, and are not intended to limit the present invention only to the embodiments. The monitoring target to which the present invention is applied includes a plant. Plants target those from which process data can be acquired, such as, for example, a power plant including a boiler, an incineration plant, a chemical plant, and a wastewater treatment plant. In addition to the examples of process data in a power plant described in the following embodiments, process data in an incineration plant for waste and the like is, for example, the amount of air charged to the incinerator, the temperature of the charged air, and the temperature of the furnace exit. It includes measurement data such as gas temperature and composition factor, temperature of each part measured by sensors, pressure, flow rate, combustion state, etc. Process data in a chemical plant includes, for example, temperature difference between processes or between two or more thermocouples, operating pressure, product parameters (speed, density, etc.), cooling water flow rate, output measurement value, valve sensor data, etc. include The process data in the wastewater treatment plant includes, for example, the raw water inflow and outflow amount of the tank, the water level, the quality of the treated water, and the operational variables of various pumps and the like output from each sensor and each watt-hour meter.

Fig. 1 is a schematic diagram showing the overall configuration of a plant 1 as an example of a monitoring target in an embodiment of the present invention. The plant 1 according to the present embodiment is a power plant equipped with a circulating fluidized bed boiler (circulating fluidized bed type) that generates steam by burning fuel while circulating a circulating material such as silica sand flowing at a high temperature, for example. . As fuel for the plant 1, non-fossil fuels (woody biomass, waste tires, waste plastics, sludge, etc.) can be used, for example, in addition to fossil fuels such as coal. Steam generated in the plant 1 is used to drive the turbine 100 .

The plant 1 burns fuel in the furnace 2, separates the circulating material from the exhaust gas by the cyclone 3 functioning as a meat separation device, and returns the separated circulating material to the furnace. (2) It is configured to be returned to the inside and circulated. The separated recycled material is conveyed to the lower part of the furnace 2 via the recycled material recovery pipe 4 connected to the lower side of the cyclone 3. However, the lower part of the circulating re-recovery pipe 4 and the lower part of the furnace 2 are connected via a loop seal part 4a in which the flow path is narrowed. As a result, a predetermined amount of the circulating material is stored in the lower part of the circulating ash recovery pipe 4 . The exhaust gas from which the circulating material is removed by the cyclone 3 is supplied to the rear flue 5 via the exhaust gas passage 3a.

The boiler includes a furnace 2 for burning fuel and a heat exchanger for generating steam or the like using heat obtained by combustion. A fuel supply port 2a for supplying fuel is provided in the middle of the furnace 2, and a gas outlet 2b for discharging combustion gas is provided in the upper portion of the furnace 2. Fuel supplied to the furnace 2 from a fuel supply device (not shown) is supplied to the inside of the furnace 2 through the fuel supply port 2a. Further, a furnace wall pipe 6 for heating boiler feed water is provided on the furnace wall of the furnace 2. The boiler feedwater flowing through the furnace wall pipe 6 is heated by combustion in the furnace 2.

In the furnace 2, the solids containing the fuel supplied from the fuel supply port 2a flow by the air for combustion and flow introduced from the lower air supply line 2c, and the fuel flows, for example It burns at about 800-900°C. Combustion gas generated in the furnace 2 is introduced into the cyclone 3 while being accompanied by a circulating material. The cyclone 3 separates the circulating material and the gas by a centrifugal action, returns the separated circulating material to the furnace 2 through the circulating material recovery pipe 4, and exhausts the combustion gas from which the circulating material is removed. It is sent to the rear flue 5 from the gas passage 3a.

In the furnace 2, a part of the circulating material called furnace bed material stays at the bottom. These bed materials may contain coarse particle sizes unsuitable for circulating flow or flue gas impurities, and flow failure may occur due to such bed materials unsuitable for circulating materials. . In order to suppress such poor flow, in the furnace 2, the furnace bed material is continuously or intermittently discharged to the outside from the discharge port 2d at the bottom. The discharged bed material is supplied to the furnace 2 again or discarded as it is after removing unsuitable materials such as metal or coarse particles on a circulation line (not shown). The circulating material of the furnace 2 circulates in a circulation system composed of the furnace 2, the cyclone 3, and the circulating ash collection pipe 4.

The rear flue 5 has a flow path through which the gas discharged from the cyclone 3 flows to the rear end. The rear flue 5 is an exhaust heat recovery unit that recovers heat from exhaust gas, and has a superheater 10 that generates superheated steam and an economizer 12 that preheats boiler feed water. Exhaust gas flowing through the rear flue 5 is cooled by exchanging heat with steam or boiler feed water flowing through the superheater 10 and the economizer 12 . In addition, the plant 1 is provided with a steam drum 8 in which boiler feedwater that has passed through the economizer 12 is stored. The steam drum 8 is also connected to the furnace wall pipe 6 of the furnace 2.

The economizer 12 transfers the heat of the exhaust gas to the boiler feed water to preheat the boiler feed water. The economizer 12 is connected to the pump 7 via a pipe 21, and to the steam drum 8 via a pipe 22. The boiler feedwater supplied from the pump 7 to the economizer 12 via the pipe 21 and preheated by the economizer 12 is supplied to the steam drum 8 via the pipe 22.

To the steam drum 8, a downcomer pipe 8a and a furnace wall pipe 6 are connected. Boiler feedwater in the steam drum 8 descends down the downcomer pipe 8a, is introduced into the furnace wall pipe 6 from the lower side of the furnace 2, and flows toward the steam drum 8. Boiler feed water in the furnace wall tube 6 is heated by combustion heat generated in the furnace 2 and evaporated in the steam drum 8 to become steam.

The steam drum 8 is connected with a saturated steam pipe 8b for discharging steam inside. The saturated steam pipe 8b connects the steam drum 8 and the superheater 10. Steam in the steam drum 8 is supplied to the superheater 10 via the saturated steam pipe 8b. The superheater 10 generates superheated steam by overheating steam using the heat of the exhaust gas. The superheated steam passes through the pipe 10a and is supplied to the turbine 100 outside the plant 1 to be used for power generation.

The pressure and temperature of the steam discharged from the turbine 100 are lower than the pressure and temperature of the steam discharged from the superheater 10 . Although not particularly limited, the pressure of the steam supplied to the turbine 100 is about 10 to 17 MPa, and the temperature is about 530 to 570°C.

A condenser 102 is provided downstream of the turbine 100 . The steam discharged from the turbine 100 is supplied to the condenser 102, condensed in the condenser 102, returned to saturated water, and then supplied to the pump 7. The turbine 100 is connected to a generator that converts kinetic energy obtained by rotation of the turbine 100 into electrical energy.

The pump 7a supplies make-up water so as to keep the water level in the condenser 102 constant. In FIG. 1, the replenishment water flow rate u1 replenished by the pump 7a (an example of "process data") is shown.

The process data handled in the present embodiment may be any data related to the plant 1, but may be, for example, data obtained by measuring the operating state of the plant 1 with a sensor (an example of "process data"), More specifically, you may include measured values, such as temperature of the plant 1, pressure, and flow rate. In FIG. 1, the boiler feedwater flow rate u2 supplied from the pump 7 to the economizer 12 (an example of "process data") is shown. In addition, in FIG. 1, the boiler exit steam flow rate u3 supplied from the superheater 10 to the turbine 100 (an example of "process data") is shown, and the saturation supplied to the superheater 10 from the steam drum 8 is shown. The steam flow rate u4 (an example of “process data”) is shown. However, the make-up water flow rate u1 may be controlled so as to follow the saturated steam flow rate u4. Control may also be performed so as to adjust the boiler feedwater flow rate u2 while monitoring both the boiler exit steam flow rate u3 (or superheated steam flow rate) and the liquid surface level of the steam drum 8.

When a hole is generated in the pipe system constituting the plant 1, the make-up water flow rate u1 rises, or the flow rate difference between the boiler feed water flow rate u2 and the boiler exit steam flow rate u3 increases. The DCS (Distributed Control System, see FIG. 2) 20 described later is a plant 1 such as a make-up water flow rate (u1), a boiler feedwater flow rate (u2), a boiler outlet steam flow rate (u3), and a saturated steam flow rate (u4). Receives process data from the plant 1, monitors the operation status of the plant 1, and monitors whether or not an abnormality has occurred in the plant 1.

However, although make-up water flow rate (u1), boiler feedwater flow rate (u2), boiler outlet steam flow rate (u3), and saturated steam flow rate (u4) were exemplified as process data, the process data related to the plant 1 may be other data. . The process data related to the plant 1 may be other data such as temperature and pressure, or data calculated based on a plurality of process data, or may be uncalculated data obtained from sensors or the like.

Fig. 2 is a functional block diagram of the plant 1, the DCS 20, and the driving support system 30 according to the present embodiment.

The DCS 20 is a distributed control system for controlling the plant 1. The DCS 20 acquires process data from sensors or the like installed in the plant 1, and supplies control signals for controlling the plant 1 to the plant 1 based on this.

The driving support system 30 includes an edge/cloud computing unit 32 that acquires process data from the DCS 20, acquires process data from the edge/cloud computing unit 32, and, based on the process data, plants ( 1) and a display device 50 for displaying the operation status of the plant 1 for operators. The monitoring device 40 (an example of "control device") also functions as a control device that controls the display device 50 . Specifically, the monitoring device 40 acquires process data of the plant 1, generates a plurality of types of graphs representing the operating state of the plant 1 based on this, and generates a plurality of types of graphs generated. While displaying as an option in the first area of the display device 50, the operating state of the plant 1 is displayed in the second area of the display device 50 using the graph. This makes it possible to analyze the driving state from various viewpoints.

The edge/cloud computing unit 32 includes a plurality of edge servers distributed on the periphery of the network and a cloud data server that collects process data from the plurality of edge servers and provides it to the monitoring device 40. . By providing the edge/cloud computing unit 32, it is possible to appropriately collect process data from a large-scale monitoring device or a plurality of distributed monitoring devices. However, the driving support system 30 does not necessarily have to include the edge/cloud computing unit 32 . In that case, the driving support system 30 acquires process data from the DCS 20 via the network.

The monitoring device 40 includes a control unit 42 and a storage unit 44 . The control unit 42 includes a process data acquisition unit 42A that acquires process data from the edge/cloud computing unit 32, a graph selection acceptor 42B that accepts graph selection, and a process data acquisition unit 42A. A graph generating unit 42C for generating a plurality of types of graphs representing the operating state of the plant 1 based on the process data acquired by the process data, and a display device for displaying the plurality of types of graphs generated by the graph generating unit 42C. 50) is displayed as an option in the selection area (an example of the “first area”) A1, and when a specific graph selected from among a plurality of types of graphs displayed in the selection area A1 is received by the graph selection reception unit 42B, A display control unit 42D is provided to display the operating state of the plant 1 using a specific graph in the display area (an example of the “second area”) B1, C1, etc. of the display device 50.

The storage unit 44 of the monitoring device includes a graph setting DB 44A and a graph history DB 44B. First, each database in the storage unit 44 will be described.

The graph setting DB 44A stores process data acquired in the past. In particular, the graph setting unit DB 44A associates the process data with the acquisition time so that the process data acquired during the target period can be output when the monitoring target period (target period) is designated by the operator. Save it.

In addition, the graph setting DB 44A provides template information for each graph to represent the acquired process data in a plurality of types of graphs (for example, graphs such as trend charts, box plots, scatter plots, and cumulative count plots). Save. For example, when a group of process data is input through the process data acquisition unit 42A and a specific graph is selected through the graph selection receiver 42B, a template for displaying the input process data in a specific graph. Information is read from the graph setting DB 44 and used for graph creation in the graph creation unit 42C. Information stored in the graph setting DB 44A can be updated appropriately.

In addition, the graph setting DB 44 stores information for setting details of each graph. For example, when generating the graph of the scatter diagram shown in Fig. 5, process data for each parameter can be set so that the parameter of the vertical axis (Y axis) can be selected and set from "air flow rate", "damper opening degree", and "air pressure". Sort and save.

The graph history DB 44B stores history information of graphs used in the past. In particular, the graph history DB 44B stores operators in association with graphs used by the operator, so that graphs used by operators with high familiarity in the past can be referred to.

Next, each functional block of the control unit 42 of the monitoring device 40 will be described.

The process data acquisition unit 42A acquires process data from the edge/cloud computing unit 32. The graph selection accepting unit 42B accepts graph selection from the operator via a user interface (keyboard, mouse, etc.) not shown.

The graph generating unit 42C generates a plurality of types of graphs representing the operating state of the plant 1 based on the process data acquired by the process data acquisition unit 42A. Specifically, when a group of process data is input through the process data acquisition unit 42A to the graph generating unit 42C and a monitoring target period (target period) is designated by the operator, the target period Along with reading the acquired process data from the graph setting DB 44A, template information for displaying the input process data in multiple types of graphs is read from the graph setting DB44, and multiple types of graphs are generated based on these information. do. For example, as shown in FIG. 4, the graph generating unit 42C is a graph of a trend diagram showing the air flow rate of the bellows 2c (FIG. 1) as process data time-sequentially (the vertical axis indicates the air flow rate). A graph showing time on the horizontal axis) or a scatter graph of air flow rate (a graph showing air flow rate on the vertical axis and boiler load on the horizontal axis) as shown in FIG. 5 can be created. The graph of the trend diagram and the graph of the scatter diagram represent the common process data of "air flow rate" in different modes (one in a time-sequential mode and the other in a non-time-series mode).

The display control unit 42D displays the plurality of types of graphs generated by the graph generating unit 42C as options in the selection area (an example of the "first area") A1 of the display device 50 . Specifically, as shown in FIG. 3 , the display control unit 42D has a plurality of types generated by the graph generation unit 42C in the selection area A1 included in the graph setting screen S1 displayed on the display device 50. An icon is displayed in the selection area A1 as a selection option. An operator can select a specific graph (for example, an icon ( _IT ) of a trend chart or an icon ( _IS ) of a scatter chart) from among the graphs displayed with icons in this way, by a double-click operation or the like.

Also, the display control unit 42D displays information for setting details of each graph. For example, as shown in Fig. 3, the display control unit 42D performs a display for selecting a period to be monitored (target period) in the period setting area A2 included in the graph setting screen S1. . The operator can appropriately select the date and time from the options displayed in the period setting area A2. In addition, as shown in FIG. 3, the display control unit 42D, in the item setting areas A3 and A4 included in the graph setting screen S1, when generating a specific graph (for example, the scatter plot in FIG. 5) Displays options for setting parameters of the vertical axis or horizontal axis, or displays for adjusting the length of the vertical axis or horizontal axis. The operator selects the parameters of the vertical axis or the horizontal axis from the options of the item setting area A3 displayed by the display control unit 42D, or appropriately changes the value displayed in the item setting area A4 by the display control unit 42D to determine the length of the vertical axis or the horizontal axis. can be adjusted or In addition, as shown in FIG. 3, the display control unit 42D, in the specific value display area A5 included in the graph setting screen S1, the length of the vertical axis or the horizontal axis of the specific graph (for example, the scatter plot in FIG. 5). (adjusted value), the maximum value, minimum value, average value, etc. of the parameters on the vertical and horizontal axes are displayed.

Then, when the display control unit 42D accepts, for example, a selection of a specific graph from among the plurality of types of graphs displayed in the selection area A1 by a double-click operation, etc. to the graph reception unit 42C, the selected specific graph is used. The operating state of the plant 1 is displayed in the display areas B1 and C1 of the display device 50 (an example of the "second area"). Specifically, the display control unit 42D displays the first graph displayed on the display device ₅₀ , as shown in FIG. A graph of the trend diagram is displayed in the display area B1 included in the display screen S2. In this way, the operating state of the plant 1 is displayed using the graph of the trend diagram.

In the graph of the trend diagram shown in Fig. 4, the vertical axis represents the air flow rate and the horizontal axis represents the time, respectively, and a certain target period (June 12, 2020 21:45 - June 19, 2020 21:45) ), the time history of the air flow rate in From the graph of this trend chart, it is understood that the air flow rate increases and decreases with the lapse of time. In some cases, it cannot be determined.

Therefore, the operator selects a non-time-sequential graph (for example, a scatter plot) from the graphs displayed with icons in the selection area A1 of the display device 50. The display control unit 42D displays a second graph display screen S3 displayed on the display device ₅₀ , as shown in FIG. A scatter plot graph is displayed in the display area C1 included in . In this way, the operating state of the plant 1 is displayed using a scatter plot graph.

In the graph of the scatter plot shown in Fig. 5, the vertical axis represents the air flow rate and the horizontal axis represents the boiler load, respectively, and the target period of the graph of the trend chart (June 12, 2020 21:45 - June 19, 2020 21:45) and the correlation between the air flow rate and the boiler load within the same period. From this graph of the scatter plot, it is understood that the air flow rate also gradually increases as the boiler load increases, but since such a correlation is typically seen when the plant 1 is in a steady state, the plant ( It is presumed that there is no abnormality in 1).

Also, the display control unit 42D can register and display history information of graphs used in the past. That is, the display control unit 42D inputs predetermined information into the graph generated through the above procedure, for example, into the registration area A6 of FIG. type, axis, adjustment value, etc.) can be stored (registered) in the graph history DB (44B). Then, the display control unit 42D reads, for example, a graph used in the past by a specific operator with high familiarity (a graph in which various items are set) from the graph history DB 44B, and displays the graph on the graph display screen S2 ( It can also be displayed in the display area B1 (C1) included in S3). In this way, even if the operator has relatively low familiarity, it is possible to know which graph the operator with high familiarity has arranged (set items) and used in the past. Therefore, learning of monitoring points becomes possible, and driving familiarity can be easily improved.

Fig. 6 is a diagram showing a physical configuration for realizing the driving support system 30 according to the present embodiment. However, since it is possible to employ a known physical configuration of the edge/cloud computing unit 32, the description is omitted. In the following, the physical configuration of the driving support system 30 excluding the edge/cloud computing unit 32 explain about.

The driving support system 30 includes a central processing unit (CPU) 30A corresponding to an arithmetic unit, a random access memory (RAM) 30B and a read only memory (ROM) 30C corresponding to a storage unit, and a communication unit 30D, an input unit 30E, and a display unit 30F. Each of these components is connected to each other through a bus so that data transmission and reception is possible. However, in this example, the case where the driving support system 30 is composed of one computer is described, but the driving support system 30 may be composed of a plurality of computers. For example, the display unit 30F may be composed of a plurality of displays. In addition, the structure shown in FIG. 6 is only an example, and it is not necessary to have some of these structures. Also, part of the configuration may be provided in a remote location. For example, a part of the ROM 30C may be provided in a remote location and configured to be communicable via a communication network.

The CPU 30A is an arithmetic unit that performs control processing, arithmetic processing, and the like included in the present disclosure by executing a computer program or the like recorded in the ROM 30C or the like. The CPU 30A includes a processor. CPU 30A receives various information (including process data) from RAM 30B, ROM 30C, communication unit 30D, input unit 30E and the like, and displays calculation results and the like on display unit 30F. It is displayed or stored in RAM 30B or ROM 30C.

The RAM 30B functions as a cache memory among storage units, and may be composed of volatile semiconductor memory elements such as SRAM and DRAM, for example.

The ROM 30C functions as a main memory among storage units, and may be composed of, for example, a non-volatile semiconductor memory element capable of electrically rewriting information such as a flash memory or an HDD capable of rewriting information magnetically. The ROM 30C may store, for example, computer programs and data for executing processing including each control and each arithmetic process shown in the present disclosure.

The communication unit 30D is an interface for connecting the driving support system 30 to other devices such as the DCS 20. The communication unit 30D may be connected to a communication network such as the Internet.

The input unit 30E receives input of data and selection of graphs from the operator, and may include, for example, a keyboard and a touch panel.

The display part 30F visually displays the calculation result by the CPU 30A, and may be constituted by, for example, an LCD (Liquid Crystal Display).

In the physical structure as described above, it is possible to realize each function constituting the control unit 42 of the monitoring device 40 mainly by the CPU 30A executing a computer program, and mainly from the ROM 30C to the storage unit ( It is possible to realize each database constituting 44), and it is possible to realize the display device 50 mainly from the display portion 30F.

However, the driving support system 30 may be configured with a tablet terminal. By configuring the driving support system 30 with a tablet terminal, the driving support system 30 can be carried around, and the driving support system 30 can be used while touring the plant 1, for example.

Next, a method (control method) of controlling the display device 50 for displaying the operating state of the plant 1 using the operation support system 30 in the present embodiment will be described. Fig. 7 is a flowchart including such a display method. However, the method of displaying the operating state of the plant 1 by the control method according to the present embodiment is an example of the display method in the present invention.

First, the process data acquisition unit 42A of the control unit 42 of the monitoring device 40 of the driving support system 30, via the edge/cloud computing unit 32 or the DCS 20, processes the plant 1 Acquire process data of (data acquisition process: S71). Subsequently, the graph generating unit 42C of the control unit 42 of the monitoring device 40 of the operation support system 30 displays a plurality of operating conditions of the plant 1 based on the process data acquired in the data acquisition step S71. A kind of graph is generated (graph creation process: S72). Then, the display control unit 42D of the control unit 42 of the monitoring device 40 of the driving support system 30 transfers the plurality of types of graphs generated in the graph generation step S72 to the selection area A1 of the display device 50. An icon is displayed as an option (option display control process: S73). However, the process of displaying the plurality of types of graphs as options as icons in the selection area A1 by the option display control step S73 corresponds to the option display step of the display method in the present invention.

Subsequently, when the operator selects one of the plurality of types of graphs displayed as icons in the selection area A1 of the display device 50 by a double-click operation or the like, the control unit 42 of the monitoring device 40 of the driving support system 30 The graph reception unit 42B of ) accepts the selection of a graph from the operator (graph selection acceptance step: S74). Then, the display control unit 42D of the control unit 42 of the monitoring device 40 of the driving support system 30 displays the specific graph received in the graph selection reception step S74 (for example, a graph of a trend chart or a scatter graph). It is displayed in the display areas B1 and C1 of the device 50 (graph display control process: S75). In this way, the operating state of the plant 1 is displayed using a specific graph (for example, a trend graph or a scatter graph). However, the process of displaying the operation status of the plant 1 in the display regions B1 and C1 using a specific graph by the graph display control process S75 corresponds to the operation status display process of the display method in the present invention.

According to the above embodiment, a plurality of types of graphs representing the operating state of the plant 1 can be displayed as options in the selection area A1 of the display device 50 . Therefore, the operator can select any one graph among a plurality of types of graphs displayed in the selection area A1 of the display device 50, and the operating state of the plant 1 is displayed on the display device 50 using the selected graph. It can be displayed in display areas B1 and C1. Therefore, since the operating state of the plant 1 can be displayed using a plurality of graphs, it can contribute to the analysis of the operating state from various viewpoints.

Further, according to the above embodiment, as a plurality of types of graphs, a graph that displays common process data in different ways (that is, a graph such as a trend chart showing the history of process data in a time-series manner, and a graph that displays the history of process data in non-clockwise Since both of the same graphs as thermally expressed scatter plots) are employed, the operating state of the plant 1 (for example, an operating state with a high possibility of gradually transitioning to an abnormal state) that cannot be found only with a time-series graph, It can be identified by a non-time-series graph, and it becomes possible to grasp an abnormality factor of the plant 1 at an early stage and take a preliminary treatment, thereby contributing to the continuation of the stable operation of the plant 1.

Various modifications are possible to the present invention without departing from the gist thereof. For example, in the above embodiment, the display control unit 42D reads a graph used in the past by a specific operator with high familiarity (a graph in which various items are set) from the graph history DB 44B, and displays the graph. By displaying it in the area B1 (C1), an example was shown in which an operator with a relatively low level of familiarity could learn past graphs of an operator with a high level of familiarity. You can also sample the optimal graph.

In this case, the display control unit 42D performs machine learning on the correlation between a specific situation (for example, a situation in which a warning has occurred) and a graph used by an operator with high familiarity in that situation, and displays the learning result as a graph. It is recorded in the history DB, and when it is determined that a specific situation has occurred based on the process data, a graph related to that situation can be automatically read from the graph history DB and displayed in the display area B1 (C1). The machine learning model includes using a neural network such as a convolutional neural network (CNN), using a regression model such as Gaussian process regression, and using a tree algorithm such as a decision tree. When collecting information for machine learning, the edge/cloud computing unit 32 may be used.

In addition, various modifications are possible to the present invention without departing from the gist thereof. For example, within the range of ordinary creative abilities of those skilled in the art, some components of a given embodiment can be added to other embodiments. Also, some constituent elements in a given embodiment can be replaced with corresponding constituent elements in other embodiments.

One… plant
40... Monitoring device (control device)
42A... Process data acquisition unit (acquisition unit)
42B... Graph selection reception unit (reception unit)
42C... Graph generation unit (generating unit)
42D display control unit
50 display
A1... Selection area (first area)
B1... Display area (second area)
C1... Display area (second area)
S71... Data Acquisition Process (Acquisition Process)
S72... Graph generation process (generation process)
S73... Options display control process (display control process)
S74... Graph selection acceptance process (reception process)
S75... Graph display control process (display control process)

Claims (18)

As a display device that displays the operating state of the plant,
A display device for displaying a plurality of types of graphs representing the operating state of the plant as options in a first area and displaying the operating state of the plant in a second area using the graphs. According to claim 1,
The plurality of types of graphs indicate a history of process data representing the operating state of the plant. According to claim 2,
The display device according to claim 1 , wherein the plurality of types of graphs represent the common process data in different ways. According to claim 3,
The plurality of types of graphs include both a graph showing the history of the process data in a time-series manner and a graph showing the history of the process data in a non-time-series manner. According to any one of claims 1 to 4,
When a specific graph is selected from among the plurality of types of graphs displayed in the first region, the operating state of the plant is displayed in the second region using the specific graph. As a display method for displaying the operating state of the plant,
An option display step of displaying a plurality of types of graphs representing the operating state of the plant as options in a first area;
And an operation state display step of displaying the operation state of the plant in a second area using any one of the plurality of types of graphs displayed in the option display step. As a control device for controlling a display device displaying the operating state of a plant,
an acquisition unit for acquiring process data of the plant;
a generation unit for generating a plurality of types of graphs representing the operating state of the plant based on the process data acquired by the acquisition unit;
A control device comprising a display control unit for displaying the plurality of types of graphs as options in a first area of the display device and displaying the operating state of the plant in a second area of the display device using the graphs. . According to claim 7,
Further comprising a reception unit for receiving a selection of a graph;
The display control unit displays the operating state of the plant in the second area using the specific graph when a specific graph selected from among the plurality of types of graphs displayed in the first area is received by the reception unit. control device. According to claim 7 or 8,
wherein the display control unit stores the graph generated by the generation unit in a storage unit. According to claim 9,
wherein the display control unit reads the graph stored in the storage unit and displays it on the second area of the display device. As a control method for controlling a display device displaying the operating state of a plant,
An acquisition step of acquiring process data of the plant;
a generation step of generating a plurality of types of graphs representing the operating state of the plant based on the process data acquired in the acquisition step;
and a display control step of displaying the plurality of types of graphs as options in a first area of the display device and displaying the operating state of the plant in a second area of the display device using the graphs. method. According to claim 9,
Further comprising a reception process for receiving the selection of the graph,
In the display control process, when a specific graph selected from among the plurality of types of graphs displayed in the first area is received in the receiving process, the operating state of the plant is displayed in the second area using the specific graph. How to do, how to control. According to claim 11 or 12,
In the display control step, the graph generated in the generation step is stored in a storage unit. According to claim 13,
In the display control step, the graph stored in the storage unit is read and displayed in the second area of the display device. As a computer program for executing a control method for controlling a display device for displaying the operating state of a plant in a computer,
The control method,
An acquisition step of acquiring process data of the plant;
a generation step of generating a plurality of types of graphs representing the operating state of the plant based on the process data acquired in the acquisition step;
and a display control step of displaying the plurality of types of graphs as options in a first area of the display device and displaying the operating state of the plant in a second area of the display device using the graphs. program. According to claim 15,
The control method further includes a reception step of accepting selection of a graph,
In the display control process, when a specific graph selected from among the plurality of types of graphs displayed in the first area is received in the receiving process, the operating state of the plant is displayed in the second area using the specific graph. Letting go, a computer program. According to claim 15 or 16,
In the display control step, the computer program stores the graph generated in the generating step in a storage unit. According to claim 17,
In the display control step, the graph stored in the storage unit is read and displayed in the second area of the display device.

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