WO2022102348A1

WO2022102348A1 - Display device, display method, control device, control method, and computer program

Info

Publication number: WO2022102348A1
Application number: PCT/JP2021/038427
Authority: WO
Inventors: 大也藤井; 建聖渡邊; 七海青木; 豊明渡; 正法門脇; 孝志水野; 理絵山根
Original assignee: 住友重機械工業株式会社
Priority date: 2020-11-11
Filing date: 2021-10-18
Publication date: 2022-05-19
Also published as: KR20230104871A; JPWO2022102348A1; TWI818346B; TW202219668A

Abstract

The present invention provides a display device, a display method, a control device, a control method, and a computer program which can use a plurality of graphs to display the operational state of a plant, and which can contribute to analysis of the operational state from a variety of viewpoints. A display device 50 for displaying the operational state of a plant 1 displays a plurality of types of graphs indicating the operational state of the plant 1 as options in a first region A1, and uses a graph to display the operational state of the plant in a second region B1, 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 status of plants have been proposed. For example, by comparing the process value acquired from the monitored points in the plant in time series with the corresponding limit value, the time point when the process value exceeds the limit value is determined, and based on the time point. A plant monitoring device has been proposed in which a process value within a set time range and a corresponding limit value are displayed on a display device in chronological order (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-115195

In the technique described in Patent Document 1, process values can be displayed as a time-series graph, but whether the operating state of the plant is normal or abnormal only with such a single type of graph. Judgment may be difficult.

The present invention has been made in view of such circumstances, and is a display device capable of displaying the operating state of a plant using a plurality of graphs and contributing to the analysis of the operating state from various viewpoints. It is an object of the present invention to provide a display method, a control device, a control method, and a computer program.

The first aspect of the present invention is a display device for displaying the operating state of a plant, in which a plurality of types of graphs showing the operating state of the plant are displayed as options in the first area, and the operation of the plant is displayed using the graph. The state is displayed in the second area. In this display device, when a specific graph is selected from a plurality of types of graphs displayed in the first area, the operating state of the plant can be displayed in the second area using the specific graph.

A second aspect of the present invention is a display method for displaying the operating state of a plant, which is a selection display step of displaying a plurality of types of graphs showing the operating state of the plant as options in a first area of a predetermined screen, and options. It includes an operation state display step of displaying the operation state of a plant in a second area by using any one of a plurality of types of graphs displayed in the display step. In the operation status display process of this display method, when a specific graph is selected from a plurality of types of graphs displayed in the option display process, the operation status of the plant is displayed in the second area using the specific graph. be able to.

A third aspect of the present invention is a control device that controls a display device that displays the operating state of the plant, and is a control device that acquires process data of the plant and a plant based on the process data acquired by the acquisition unit. A generator that generates multiple types of graphs showing the operating status, and multiple types of graphs are displayed as options in the first area of the display device, and the operating status of the plant is displayed in the second area of the display device using the graph. It is provided with a display control unit for making the display control unit. The control device may further include a reception unit that accepts graph selection, and the display control unit accepts that a specific graph is selected from a plurality of types of graphs displayed in the first area. In this case, the operating state of the plant can be displayed in the second area using a specific graph.

A fourth aspect of the present invention is a control method for controlling a display device for displaying the operating state of the plant, which is a control method for acquiring the process data of the plant and the process data acquired in the acquisition process of the plant. A generation process that generates multiple types of graphs showing the operating status, displaying multiple types of graphs as options in the first area of the display device, and displaying the operating status of the plant in the second area of the display device using the graph. It includes a display control process for causing the display. This control method can further include a reception process for accepting graph selection, and in the display control process, the reception process accepts that a specific graph is selected from a plurality of types of graphs displayed in the first area. In this case, the operating state of the plant can be displayed in the second area using a specific graph.

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 that displays the operating state of the plant, wherein the control method includes an acquisition process for acquiring process data of the plant and acquisition. A generation process that generates multiple types of graphs that represent the operating status of the plant based on the process data acquired in the process, and multiple types of graphs are displayed as options in the first area of the display device, and the graph is used to display the plant. It includes a display control step of displaying an operating state in a second area of a display device. The control method executed by the computer program can further include a reception process for accepting graph selection, and in the display control process, a specific graph is selected from a plurality of types of graphs displayed in the first area. When this is accepted in the reception process, the operating status of the plant can be displayed in the second area using a specific graph.

By adopting such a configuration and method, a plurality of types of graphs showing the operating state of the plant can be displayed as options in the first area of the display device. Therefore, the operator can select one of a plurality of types of graphs displayed in the first area of the display device, and the second graph of the display device can be used to display the operating state of the plant using the selected graph. Can be displayed in the area. Therefore, since the operating state of the plant can be displayed using a plurality of graphs, it is possible to 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 adopted. Further, as a plurality of types of graphs, a graph showing common process data in different modes (for example, a graph showing the history of process data in time series and a graph showing the history of process data in non-time series). (Including both) can be adopted.

In this way, the operating state of the plant (for example, the operating state that is likely to gradually shift to an abnormal state) that cannot be found only by the time-series graph can be specified by the non-time-series graph. It is possible to grasp the cause of the abnormality of the plant at an early stage and take proactive measures, which can contribute to the continuation of stable operation of the plant.

The display control unit according to 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 according to the fourth and fifth aspects of the present invention, the display control unit is generated by the generation unit. The graph can be stored in the storage unit.

By adopting such a configuration and method, it is possible to store graphs generated and used in the past. Therefore, for example, by associating and storing the operator and the graph used by the operator, it is possible to refer to the graph used by the operator having a high degree of proficiency in the past.

The display control unit according to 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 the display control step according to the fourth and fifth aspects of the present invention. Then, the graph stored in the storage unit can be read and displayed in the second area of the display device.

When such a configuration and method are adopted, for example, a graph (a graph in which various items are set) used in the past by a specific operator with a high degree of proficiency can be read and the graph can be displayed in the second area of the display device. can. This makes it possible to know what kind of graph was arranged (item setting) and used by a highly proficient operator in the past, even if the operator has a relatively low proficiency level. .. Therefore, it is possible to learn monitoring points, and it is possible to easily improve driving proficiency.

According to the present invention, a display device, a display method, a control device, a control method, and a display device, a display method, a control device, a control method, and a display device, a display method, a control device, and a control method, which can display the operation state of a plant using a plurality of graphs and can contribute to the analysis of the operation state from various viewpoints. It becomes possible to provide a computer program.

It is a schematic diagram which shows the whole structure of the plant to be monitored in embodiment of this invention. It is a figure which shows the functional structure of the driving support system in embodiment of this invention. It is a figure which shows an example of the graph selection setting screen displayed on the display device which concerns on embodiment of this invention. It is a figure which shows an example of the time series graph screen displayed on the display device which concerns on embodiment of this invention. It is a figure which shows an example of the non-time series graph screen displayed on the display device which concerns on embodiment of this invention. It is a figure which shows the physical structure of the driving support system in embodiment of this invention. It is a flowchart which shows an example of the control method which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are examples for explaining the present invention, and the present invention is not intended to be limited only to the embodiments. The monitoring target to which the present invention is applied includes plants. The plant is intended for a power plant including a boiler, an incinerator plant, a chemical plant, a wastewater treatment plant, etc., for which process data can be obtained. In addition to the examples of the process data in the power generation plant described in the following embodiments, the process data in the incinerator such as waste may be, for example, the amount of air input to the incinerator and the temperature of the input air, the gas temperature at the outlet of the furnace, and the composition factor. , Includes measurement data such as temperature, pressure, flow rate, combustion state, etc. of each part measured by sensors and the like. Process data in a chemical plant may include, for example, temperature differences between processes or between two or more thermocouples, operating pressure, generated distribution parameters (speed, density, etc.), cooling water flow rate, output measurements, valve sensor data, etc. including. The process data in the wastewater treatment plant includes, for example, the amount of raw water inflow and outflow of the tank, the water level, the quality of treated water, the amount of operation of equipment such as various pumps, and the like, which are output from each sensor and each watt-hour meter.

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

The plant 1 is configured to burn fuel in the furnace 2, separate the circulating material from the exhaust gas by a cyclone 3 functioning as a solid air separating device, and return the separated circulating material to the furnace 2 for circulation. There is. The separated circulating material is returned to the lower part of the furnace 2 via the circulating material recovery pipe 4 connected below the cyclone 3. The lower part of the circulation material recovery pipe 4 and the lower part of the furnace 2 are connected to each other via a loop seal portion 4a having a narrowed flow path. As a result, a predetermined amount of circulating material is stored in the lower part of the circulating material recovery pipe 4. The exhaust gas from which the circulating material has been removed by the cyclone 3 is supplied to the rear flue 5 via the exhaust gas flow path 3a.

The boiler is equipped with a furnace 2 for burning fuel and a heat exchanger for generating steam or the like using the heat obtained by the combustion. A fuel supply port 2a for supplying fuel is provided in the middle portion of the furnace 2, and a gas outlet 2b for discharging combustion gas is provided in the upper portion of the furnace 2. The fuel supplied to the furnace 2 from the 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 the boiler water supply is provided on the furnace wall of the furnace 2. The boiler water supply flowing through the furnace wall pipe 6 is heated by combustion in the furnace 2.

In the furnace 2, the air for combustion and flow introduced from the lower air supply line 2c causes solid matter including fuel supplied from the fuel supply port 2a to flow, and the fuel flows while flowing, for example, about 800 to 900. Burn at ° C. The combustion gas generated in the furnace 2 is introduced into the cyclone 3 with a circulating material. The cyclone 3 separates the circulating lumber and the gas by the centrifugal separation action, returns the circulating lumber separated through the circulating lumber recovery pipe 4 to the furnace 2, and returns the combustion gas from which the circulating lumber is removed to the exhaust gas flow path 3a. To the rear flue 5.

In the furnace 2, a part of the circulating material called the in-furnace bed material stays at the bottom. This bed material may contain a material having a coarse particle size unsuitable for circulating flow or a combustion contaminant, and a bed material or the like unsuitable for such a circulating material may cause flow failure. In order to suppress such flow failure, in the furnace 2, the bed material in the furnace 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 after removing unsuitable substances such as metal and coarse particle size on a circulation line (not shown), or is discarded as it is. The circulatory material of the circulatory furnace 2 circulates in the circulatory system including the furnace 2, the cyclone 3, and the circulatory material recovery pipe 4.

The rear flue 5 has a flow path for flowing the gas discharged from the cyclone 3 to the rear stage. The rear flue 5 has a superheater 10 for generating superheated steam and an economizer 12 for preheating the boiler water supply as an exhaust heat recovery unit for recovering the heat of the exhaust gas. The exhaust gas flowing through the rear flue 5 is heat-exchanged with the steam flowing through the superheater 10 and the economizer 12 and the boiler supply water to be cooled. Further, the plant 1 is provided with a steam drum 8 for storing the boiler water supply that has passed through the economizer 12. 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 water supply to preheat the boiler water supply. The economizer 12 is connected to the pump 7 by a pipe 21 while being connected to the steam drum 8 by a pipe 22. The boiler water 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.

A precipitation pipe 8a and a furnace wall pipe 6 are connected to the steam drum 8. The boiler water supply in the steam drum 8 descends from the precipitation pipe 8a, is introduced into the furnace wall pipe 6 on the lower side of the furnace 2, and flows toward the steam drum 8. The boiler water supply in the furnace wall pipe 6 is heated by the combustion heat generated in the furnace 2 and evaporates in the steam drum 8 to become steam.

A saturated steam pipe 8b for discharging internal steam is connected to the steam drum 8. The saturated steam pipe 8b connects the steam drum 8 and the superheater 10. The steam in the steam drum 8 is supplied to the superheater 10 via the saturated steam pipe 8b. The superheater 10 uses the heat of the exhaust gas to superheat the steam to generate superheated steam. The superheated steam passes through the pipe 10a, is supplied to the turbine 100 outside the plant 1, and is used for power generation.

The pressure and temperature of the steam discharged from the turbine 100 is 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 and returned to saturated water, and then supplied to the pump 7. A generator that converts the kinetic energy obtained by the rotation of the turbine 100 into electrical energy is connected to the turbine 100.

The pump 7a supplies make-up water so as to keep the water level of the condenser 102 constant. FIG. 1 shows a make-up water flow rate u1 (an example of “process data”) replenished by the pump 7a.

The process data handled in the present embodiment may be arbitrary data relating 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”), and is more specific. May include measured values such as temperature, pressure and flow rate of plant 1. FIG. 1 shows a boiler supply water flow rate u2 (an example of “process data”) supplied from the pump 7 to the economizer 12. Further, FIG. 1 shows a boiler outlet steam flow rate u3 (an example of “process data”) supplied from the superheater 10 to the turbine 100, and a saturated steam flow rate u4 (“process”) supplied from the steam drum 8 to the superheater 10. An example of "data") is shown. The make-up water flow rate u1 may be controlled to follow the saturated steam flow rate u4. Further, it may be controlled to adjust the boiler supply water flow rate u2 while monitoring both the boiler outlet steam flow rate u3 (or superheated steam flow rate) and the liquid level of the steam drum 8.

When a hole occurs in the pipe system constituting the plant 1, the make-up water flow rate u1 increases, or the flow rate difference between the boiler supply water flow rate u2 and the boiler outlet steam flow rate u3 increases. The DCS (Distributed Control System, see FIG. 2) 20, which will be described later, receives the process data of the plant 1 such as the make-up water flow rate u1, the boiler supply water flow rate u2, the boiler outlet steam flow rate u3, and the saturated steam flow rate u4 from the plant 1, and the plant. The operating status of 1 is monitored, and whether or not an abnormality has occurred in plant 1 is monitored.

Although the make-up water flow rate u1, the boiler supply water flow rate u2, the boiler outlet steam flow rate u3, and the saturated steam flow rate u4 are 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, data calculated based on a plurality of process data, or data obtained from a sensor or the like that has not been calculated. You may.

FIG. 2 is a functional block diagram of the plant 1, DCS20 and the operation support system 30 according to the present embodiment.

DCS20 is a distributed control system for controlling plant 1. The DCS 20 acquires process data from a sensor or the like installed in the plant 1 and supplies a control signal for controlling the plant 1 to the plant 1 based on the process data.

The operation support system 30 includes an edge / cloud computing unit 32 that acquires process data from the DCS 20, and a monitoring device 40 that acquires process data from the edge / cloud computing unit 32 and monitors the plant 1 based on the process data. A display device 50 for displaying the operating status of the plant 1 for the operator. The monitoring device 40 (an example of a “control device”) also functions as a control device for controlling the display device 50. Specifically, the monitoring device 40 acquires the process data of the plant 1, generates a plurality of types of graphs showing the operating state of the plant 1 based on the process data, and displays the generated plurality of types of graphs on the display device 50. In addition to displaying as an option in one area, 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 operating state from various viewpoints.

The edge / cloud computing unit 32 includes a plurality of edge servers distributed in the peripheral portion of the network network, and a cloud data server that collects process data from the plurality of edge servers and provides them to the monitoring device 40. By providing the edge / cloud computing unit 32, it is possible to suitably collect process data from a large-scale monitoring device or a monitoring device distributed in a plurality of areas. However, the driving support system 30 does not necessarily have to include the edge / cloud computing unit 32. In that case, the driver assistance system 30 acquires the 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 is based on the process data acquisition unit 42A that acquires process data from the edge / cloud computing unit 32, the graph selection reception unit 42B that accepts graph selection, and the process data acquired by the process data acquisition unit 42A. The graph generation unit 42C that generates a plurality of types of graphs representing the operating state of the plant 1 and the plurality of types of graphs generated by the graph generation unit 42C are displayed in the selection area (example of "first area") A1 of the display device 50. When the graph selection reception unit 42B accepts that a specific graph has been selected from the plurality of types of graphs displayed in the selection area A1 while being displayed as options, the operating state of the plant 1 is used using the specific graph. Is provided with a display control unit 42D for displaying the display device 50 in the display area (an example of the “second area”) B1, C1, and the like.

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

The graph setting DB44A stores the process data acquired in the past. In particular, the graph setting unit DB44A associates the process data with the time of acquisition so that when the period to be monitored (target period) is specified by the operator, the process data acquired during the target period can be output. And store it.

Further, the graph setting DB44A stores template information of each graph for expressing the acquired process data in a plurality of types of graphs (for example, graphs such as trend charts, box plot charts, scatter charts, and cumulative frequency distribution charts). For example, when a group of process data is input via the process data acquisition unit 42A and a specific graph is selected via the graph selection reception unit 42B, the input process data is displayed in a specific graph. The template information is read from the graph setting DB 44 and used for graph generation in the graph generation unit 42C. The information stored in the graph setting DB 44A can be updated as appropriate.

Further, the graph setting DB 44 stores information for setting the details of each graph. For example, when generating the graph of the scatter plot shown in FIG. 5, the parameter of the vertical axis (Y axis) can be selected and set from "air flow rate", "damper opening", and "air pressure". , Process data is classified and stored for each parameter.

The graph history DB44B stores the history information of the graph used in the past. In particular, the graph history DB 44B stores the operator and the graph used by the operator in association with each other so that the graph used by the operator with a high degree of proficiency in the past can be referred to. It has become.

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 reception unit 42B accepts graph selection from the operator via a user interface (keyboard, mouse, etc.) (not shown).

The graph generation 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, the graph generation unit 42C inputs a group of process data via the process data acquisition unit 42A, and when the period to be monitored (target period) is specified by the operator, the graph generation unit 42C acquires it in the target period. The process data is read from the graph setting DB 44A, and the template information for displaying the input process data in a plurality of types of graphs is read from the graph setting DB 44, and a plurality of types of graphs are generated based on these information. For example, as shown in FIG. 4, the graph generation unit 42C has a graph of a trend diagram showing the air flow rate of the air box 2c (FIG. 1) as process data in chronological order (the vertical axis is the air flow rate and the horizontal axis is the horizontal axis). It is possible to generate a graph with time) or, as shown in FIG. 5, a graph of air flow distribution (a graph with air flow on the vertical axis and boiler load on the horizontal axis). can. The trend chart graph and the scatter chart graph represent the common process data of "air flow rate" in different modes (one in a time series mode and the other in a non-time series mode).

The display control unit 42D causes the selection area (an example of the “first area”) A1 of the display device 50 to display a plurality of types of graphs generated by the graph generation unit 42C as options. Specifically, as shown in FIG. 3, the display control unit 42D has a plurality of types of graphs (for example, for example) 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. , Trend chart, box plot chart, scatter chart, cumulative frequency distribution chart, etc.) are displayed as options in the selection area A1. The operator can select a specific graph (for example, the icon IT of the trend diagram or the icon _IS of the _scatter diagram) from the graphs displayed as icons by double-clicking or the like.

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

Then, when the graph receiving unit 42C accepts that a specific graph among the plurality of types of graphs displayed in the selection area A1 is selected by, for example, a double-click operation, the display control unit 42D is selected. The operating state of the plant 1 is displayed in the display areas (an example of the "second area") B1 and C1 of the display device 50 using a specific graph. Specifically, the display control unit 42D is displayed on the display device 50 as shown in FIG. 4 when the trend diagram (icon _IT ) is selected from the graph displayed as an icon in the selection area A1. The graph of the trend diagram is displayed in the display area B1 included in the first graph display screen S2. As a result, 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 is the air flow rate and the horizontal axis is the time, and a certain target period (June 12, 2020, 21:45 to June 19, 2020) is taken. The time history of the air flow within 21:45) is shown. From the graph of this trend diagram, it is possible to understand how the air flow rate increases or decreases with the passage of time. Whether this time history indicates an abnormal state of plant 1 or a normal state. It may not be possible to distinguish depending on the proficiency level of the operator.

Therefore, the operator selects a non-time-series graph (for example, a scatter diagram) from the graphs displayed as icons in the selection area A1 of the display device 50. The display control unit 42D has a second graph displayed on the display device 50 as shown in FIG. 5 when a scatter diagram (icon _IS ) is selected from the graphs displayed as icons in the selection area A1. A scatter plot graph is displayed in the display area C1 included in the display screen S3. As a result, the operating state of the plant 1 is displayed using the graph of the scatter diagram.

In the graph of the scatter plot shown in FIG. 5, the vertical axis is the air flow rate and the horizontal axis is the boiler load. The correlation between the air flow rate and the boiler load within the same period as (21:45 on June 19, 2014) is shown. From the graph of this scatter plot, it can be seen that the air flow rate gradually increases as the boiler load increases, but such a correlation is typical when the plant 1 is in a normal state. Since it is observed, it is inferred that there is no particular abnormality in the plant 1.

The display control unit 42D can also register and display the history information of the graph used in the past. That is, the display control unit 42D inputs the graph generated through the above procedure to, for example, predetermined information in the registration area A6 of FIG. 3, so that the peripheral information of the graph (name of the created operator, process data used) , Graph type, axis, adjustment value, etc.) can be stored (registered) in the graph history DB44B. Then, the display control unit 42D reads, for example, a graph (a graph in which various items are set) used in the past by a specific operator having a high proficiency level from the graph history DB 44B, and reads the graph from the graph display screen S2 (S3). It can also be displayed in the display area B1 (C1) included in. This makes it possible to know what kind of graph was arranged (item setting) and used by a highly proficient operator in the past, even if the operator has a relatively low proficiency level. .. Therefore, it is possible to learn monitoring points, and it is possible to easily improve driving proficiency.

FIG. 6 is a diagram showing a physical configuration for realizing the driving support system 30 according to the present embodiment. However, since the edge / cloud computing unit 32 can adopt a known physical configuration, the description thereof is omitted. In the following, the driving support system 30 excluding the edge / cloud computing unit 32 will be described. The physical configuration will be described.

The operation support system 30 includes a CPU (Central Processing Unit) 30A corresponding to a calculation unit, a RAM (Random Access Memory) 30B and a ROM (Read only Memory) 30C corresponding to a storage unit, a communication unit 30D, and an input unit 30E. And a display unit 30F. Each of these configurations is connected to each other via a bus so that data can be transmitted and received. In this example, the case where the driving support system 30 is composed of one computer will be 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. Further, the configuration shown in FIG. 6 is only an example, and it is not necessary to have a part of these configurations. Further, a part of the configuration may be provided in a remote place. For example, a part of the ROM 30C may be provided at a remote location so that communication can be performed via a communication network.

The CPU 30A is a calculation unit that performs control processing, calculation 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. The CPU 30A receives various information (including process data) from the RAM 30B, ROM 30C, communication unit 30D, input unit 30E, etc., displays the calculation processing result or the like on the display unit 30F, or stores it in the RAM 30B or ROM 30C.

The RAM 30B functions as a cache memory in the storage unit, and may be composed of a volatile semiconductor storage element such as a SRAM and a DRAM.

The ROM 30C functions as a main memory in the storage unit, and may be composed of, for example, a non-volatile semiconductor storage element such as a flash memory that can electrically rewrite information or an HDD that can magnetically rewrite information. The ROM 30C may store, for example, a computer program and data for executing a process 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 data input, graph selection, and the like from the operator, and may include, for example, a keyboard and a touch panel.

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

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

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

Next, a method (control method) for controlling the display device 50 that displays the operating state of the plant 1 will be described using the operation support system 30 in the present embodiment. FIG. 7 is a flowchart including such a display method. The method of displaying the operating state of the plant 1 by the control method according to the present invention 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 operation support system 30 acquires the process data of the plant 1 via the edge / cloud computing unit 32 and the DCS 20 (data acquisition process: S71). .. Next, the graph generation unit 42C of the control unit 42 of the monitoring device 40 of the operation support system 30 generates a plurality of types of graphs representing the operation state of the plant 1 based on the process data acquired in the data acquisition step S71 (graph). Generation step: S72). Then, the display control unit 42D of the control unit 42 of the monitoring device 40 of the driving support system 30 displays a plurality of types of graphs generated in the graph generation step S72 as icons in the selection area A1 of the display device 50 (option display). Control step: S73). The step of displaying a plurality of types of graphs as options 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 icon-displayed in the selection area A1 of the display device 50 by a double-click operation or the like, the graph of the control unit 42 of the monitoring device 40 of the driving support system 30 The reception unit 42B accepts the selection of the graph from the operator (graph selection reception process: S74). Then, the display control unit 42D of the control unit 42 of the monitoring device 40 of the driving support system 30 displays a specific graph (for example, a graph of a trend diagram or a scatter diagram) received in the graph selection reception process S74 in the display area of the display device 50. Displayed on B1 and C1 (graph display control step: S75). As a result, the operating state of the plant 1 is displayed using a specific graph (for example, a graph of a trend diagram or a scatter diagram). The step of displaying the operating state of the plant 1 in the display areas B1 and C1 using the specific graph by the graph display control step S75 corresponds to the operating state display step of the display method in the present invention.

According to the above embodiment, a plurality of types of graphs showing 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 one of a plurality of types of graphs displayed in the selection area A1 of the display device 50, and the operation state of the plant 1 is displayed using the selected graph. Can be displayed in the display areas B1 and C1 of. Therefore, since the operating state of the plant 1 can be displayed using a plurality of graphs, it is possible to 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 displaying common process data in different modes (that is, a graph such as a trend diagram showing the history of process data in chronological order and process data). Since it employs both a graph like a scatter plot that shows the history of the data in a non-time series, the operating state of plant 1 that cannot be found only by the time-series graph (for example, gradually shifts to an abnormal state). It is possible to identify the operating conditions that are likely to occur) by a non-time series graph, to grasp the abnormal factors of plant 1 at an early stage and take proactive measures, and to continue stable operation of plant 1. Can contribute to.

The present invention can be modified in various ways as long as it does not deviate from the gist thereof. For example, in the above embodiment, the display control unit 42D reads a graph (a graph in which various items are set) used in the past by a specific operator with a high degree of proficiency from the graph history DB 44B, and reads the graph into the display area B1. An example was shown in which an operator with a relatively low level of proficiency can learn a past graph of an operator with a high level of proficiency by displaying the image on (C1). It is also possible to automatically display a sample of the optimum graph according to the situation.

In this case, the display control unit 42D machine-learns the correlation between a specific situation (for example, a situation where a warning has occurred) and a graph used by a highly proficient operator in that situation, and the learning result. Is recorded in the graph history DB, and when it is determined that a specific situation has arrived based on the process data, the graph related to that situation is automatically read from the graph history DB and displayed in the display area B1 (C1). Can be displayed in. Machine learning models include those using a neural network such as a convolutional neural network (CNN), those using a regression model such as Gaussian process regression, and those using a tree algorithm such as a decision tree. The edge / cloud computing unit 32 can be used when collecting information for machine learning.

In addition, the present invention can be modified in various ways as long as it does not deviate from the gist thereof. For example, some components in one embodiment may be added to other embodiments within the normal creative abilities of those skilled in the art. Also, some components in one embodiment can be replaced with corresponding components in another embodiment.

1 ... Plant 40 ... Monitoring device (control device)
42A ... Process data acquisition unit (acquisition unit)
42B ... Graph selection reception department (reception department)
42C ... Graph generation unit (generation unit)
42D ... Display control unit 50 ... Display device 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 ... Option display control process (display control process)
S74 ... Graph selection reception process (reception process)
S75 ... Graph display control process (display control process)

Claims

It is a display device that displays the operating status of the plant.
A display device that displays a plurality of types of graphs showing the operating state of the plant as options in the first area and displays the operating state of the plant in the second area using the graph.
The display device according to claim 1, wherein the plurality of types of graphs represent a history of process data indicating an operating state of the plant.
The display device according to claim 2, wherein the plurality of types of graphs represent common process data in different modes.
The display device according to claim 3, wherein the plurality of types of graphs include both a graph showing the history of the process data in time series and a graph showing the history of the process data in non-time series.
From claim 1, when a specific graph is selected from the plurality of types of graphs displayed in the first area, the operating state of the plant is displayed in the second area using the specific graph. The display device according to any one of 4.
It is a display method that displays the operating status of the plant.
An option display process for displaying a plurality of types of graphs showing the operating state of the plant as options in the first area, and
An operation state display step of displaying the operation state of the plant in the second area using any of the graphs of the plurality of types displayed in the option display step, and the operation state display step.
Display method including.
A control device that controls a display device that displays the operating status of a plant.
The acquisition unit that acquires the process data of the plant,
A generation unit that generates a plurality of types of graphs showing the operating state of the plant based on the process data acquired by the acquisition unit, and a generation unit.
A display control unit that displays the plurality of types of graphs as options in the first area of the display device and displays the operating state of the plant in the second area of the display device using the graphs.
A control device.
It also has a reception area that accepts graph selections.
When the reception unit receives that a specific graph has been selected from the plurality of types of graphs displayed in the first area, the display control unit operates the plant using the specific graph. The control device according to claim 7, wherein the state is displayed in the second area.
The 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.
The control device according to claim 9, wherein the display control unit reads the graph stored in the storage unit and displays it in the second area of the display device.
It is a control method that controls a display device that displays the operating status of the plant.
The acquisition process for acquiring the process data of the plant and
A generation process that generates a plurality of types of graphs showing the operating state of the plant based on the process data acquired in the acquisition process, and a generation process.
A display control step of 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 in the second area of the display device using the graphs.
Control methods, including.
Including the reception process that accepts graph selection,
In the display control step, when the reception step accepts that a specific graph has been selected from the plurality of types of graphs displayed in the first area, the operation of the plant is performed using the specific graph. The control method according to claim 9, wherein the state is displayed in the second area.
The control method according to claim 11 or 12, wherein in the display control step, the graph generated in the generation step is stored in a storage unit.
The control method according to claim 13, wherein in the display control step, the graph stored in the storage unit is read and displayed in the second area of the display device.
A computer program that causes a computer to execute a control method that controls a display device that displays the operating status of a plant.
The control method is
The acquisition process for acquiring the process data of the plant and
A generation process that generates a plurality of types of graphs showing the operating state of the plant based on the process data acquired in the acquisition process, and a generation process.
A display control step of 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 in the second area of the display device using the graphs.
Including computer programs.
The control method further includes a reception process for accepting graph selection.
In the display control step, when the reception step accepts that a specific graph has been selected from the plurality of types of graphs displayed in the first area, the operation of the plant is performed using the specific graph. The computer program according to claim 15, wherein the state is displayed in the second area.
The computer program according to claim 15 or 16, wherein in the display control step, the graph generated in the generation step is stored in a storage unit.
The computer program according to claim 17, wherein in the display control step, the graph stored in the storage unit is read and displayed in the second area of the display device.