TW202219668A - Display device, display method, control device, control method, and computer program - Google Patents

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 state of a factory have been proposed. For example, a factory monitoring device is proposed, which compares a process value obtained from a monitoring object in a factory in time series with a corresponding limit value, determines the time point when the process value exceeds the limit value, and makes the process value exceed the limit value. The processing value and the corresponding limit value within the time range set at the time point are displayed on the display device in time series (refer to Patent Document 1). [Prior Art Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2016-115195

[Problems to be Solved by Invention]

In the technique described in Patent Document 1, processing values can be displayed as time-series graphs, but it may be difficult to determine whether the operation 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 the related circumstances, and an object of the present invention is to provide a display device, a display method, a control device, a control method, and a computer program that can display the operation state of a factory with a plurality of graphs and facilitate analysis of the operation state from various angles. [Technical means to solve problems]

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

A second aspect of the present invention is a display method for displaying an operating state of a factory, comprising: an option display step of displaying a plurality of graphs representing the operating state of the factory as options in a first area of a predetermined screen; and an operating state display step , the operation status of the plant is displayed in the second area using any of the multiple graphs displayed in the option display step. In the operation state display step of the present display method, when a specific graph is selected among the plurality of graphs displayed in the option display step, the operation 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 an operating state of a factory, comprising: an acquisition unit that acquires process data of the factory; a plurality of graphs of the operating state of the plant; and a display control unit that displays the plurality of graphs on the first area of the display device as options, and displays the operating state of the plant on the second area of the display device using the graphs. The present control device may further include an accepting unit that accepts selection of a graph, and when the accepting unit accepts selection of a specific graph among the plurality of graphs displayed in the first area, the display control unit can cause the factory to use the specific graph. The operating status of the is displayed in the second area.

A fourth aspect of the present invention is a control method for controlling a display device for displaying an operating state of a factory, comprising: an acquisition step of acquiring process data of the factory; and a generation step of generating a representation based on the process data acquired in the acquisition step Plural kinds of graphs of the operation state of the factory; and display control steps, the plurality of graphs are displayed in the first area of the display device as options, and the operation state of the factory is displayed in the second area of the display device using the graphs. The present control method may further include an accepting step of accepting selection of a graph, and when it is accepted in the accepting step that a specific graph is selected among the plurality of graphs displayed in the first area, the specific graph can be used in the display control step. The operation status of the factory is displayed in the second area.

A fifth aspect of the present invention is a computer program for causing a computer to execute a control method for controlling a display device that displays the operating state of a factory. The control method includes: an acquisition step of acquiring process data of the factory; and a generation step of The acquired process data is used to generate a plurality of graphs representing the operation state of the factory; and the control procedure is displayed, and the plurality of graphs are displayed in the first area of the display device as an option, and the operation state of the factory is displayed on the first area of the display device using the graphs. 2 areas. The control method executed by the computer program may further include an accepting step of accepting selection of a graph, and when it is accepted in the accepting step that a specific graph is selected among a plurality of graphs displayed in the first area, in the display control step. The operation status of the factory can be displayed in the second area with a specific graph.

According to the related configuration and method, a plurality of types of graphs representing the operating state of the factory can be displayed on the first area of the display device as an option. Therefore, the operator can select an arbitrary graph from among the plurality of graphs displayed in the first area of the display device, and can display the operating state of the plant on the second area of the display device using the selected graph. Therefore, since the operation state of the plant can be displayed on a plurality of graphs, it is helpful to analyze the operation state from various angles.

As a plurality of graphs in each aspect of the present invention, a graph showing the history of the flow data showing the operation state of the factory can be used. Moreover, as a plurality of graphs, those representing common flow data in different forms (for example, including both a graph showing the history of the flow data in time series and a graph showing the history of the flow data not in time series) can be used.

By doing so, it is possible to identify, from the non-sequential graph, the operating state of the plant that cannot be found only by the time-series graph (for example, an operating state with a high possibility of gradually changing to an abnormal state), and it is possible to grasp the plant's operating state at an early stage. Taking measures in advance for abnormal factors contributes to the continuous and 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 memory 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 The graph is stored in the memory.

If the related structure and method are adopted, the graphs generated and used in the past can be stored. Therefore, for example, by associating an operator with a chart used by the operator and storing it, it is possible to refer to a chart used by a highly skilled operator in the past.

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

For example, according to the related configuration and method, a graph (a graph in which various items are set) used by a specific operator with high proficiency in the past can be read, and the graph can be displayed on the second area of the display device. Thereby, even an operator with a relatively low level of proficiency can know how the chart is arranged (item setting) and used by an operator with a high level of proficiency in the past. Therefore, the monitoring point can be learned, and the operation proficiency can be easily improved. [Effect of invention]

According to the present invention, it is possible to provide a display device, a display method, a control device, a control method, and a computer program which can display the operation state of a plant by a plurality of graphs and facilitate analysis of the operation state from various angles.

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 are not intended to limit the present invention only to the embodiments. The monitoring objects using the present invention include factories. With regard to factories, for example, power plants including boilers, incineration plants, chemical plants, and waste water treatment plants are targeted for those who can obtain process data. In addition to the examples of the flow data of the power plant described in the following embodiments, for example, the flow data of the incineration plant that incinerates wastes etc. includes the amount of air fed into the incinerator and the temperature of the incoming air, the gas temperature and composition at the furnace outlet, Measurement data such as temperature, pressure, flow rate, and combustion state of each part measured by sensors, etc. For example, the process data of a chemical plant include temperature difference between processes or between two or more thermocouples, operating pressure, generated flow parameters (speed, density, etc.), flow rate of cooling water, measured output value, valve sensor data Wait. For example, the process data of the wastewater treatment plant include the raw water inflow and outflow from the water tank output from each sensor and each electric meter, the water level, the treated water quality, and the operation amount of various pumps and other machines.

FIG. 1 is a schematic diagram showing the overall configuration of a factory 1 as an example of a monitoring target in the embodiment of the present invention. For example, the factory 1 of the present embodiment is a power plant equipped with a circulating fluidized bed boiler (Circulating Fluidized Bed type) that burns fuel while circulating a circulating material such as silica sand flowing at a high temperature to generate steam. As the fuel of the factory 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 produced in plant 1 is used to drive turbine 100 .

The plant 1 is configured such that fuel is combusted in the furnace 2 , a cyclone 3 functioning as a solid-gas separation device separates a circulating material from the exhaust gas, and the separated circulating material is returned to the furnace 2 and circulated. The separated circulating material is returned to the lower part of the furnace 2 via the circulating material recovery pipe 4 connected to the lower part of the cyclone 3 . In addition, the lower portion of the circulating material recovery pipe 4 is connected to the lower portion of the furnace 2 through the ring seal portion 4a in which the flow passage is narrowed. Thereby, 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 through the exhaust gas flow path 3a.

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

In the furnace chamber 2, solid matter including the fuel supplied from the fuel supply port 2a flows by the combustion/flow air introduced from the lower air supply pipe 2c, and the fuel flows and burns at, for example, about 800-900°C. The combustion gas generated in the furnace chamber 2 is introduced into the cyclone 3 along with the circulating material. The cyclone 3 separates the circulating material and the gas by centrifugal separation, returns the separated circulating material to the furnace 2 through the circulating material recovery pipe 4, and sends the combustion gas with the circulating material removed from the exhaust gas flow path 3a to the rear flue 5 .

In the furnace chamber 2, a part of the circulating material called the in-furnace machine tool material is accumulated at the bottom. The machine tool material may contain those having a coarse particle size that are not suitable for circulating flow, and combustion impurities may be included, and flow failure may occur due to such a machine tool material that is not suitable for circulating flow. In order to suppress such poor flow, in the furnace chamber 2, the machine tool material in the furnace is continuously or intermittently discharged to the outside from the discharge port 2d at the bottom. The discharged machine tool material is supplied to the furnace 2 again or directly discarded after removing undesired substances such as metal and coarse particle size on a circulation pipe (not shown). The circulating material of the furnace 2 circulates inside the circulation system composed of the furnace 2 , the cyclone 3 and the circulating material recovery pipe 4 .

The rear flue 5 has a flow path through which the gas discharged from the cyclone 3 flows into the rear stage. The rear flue 5 has a superheater 10 for generating superheated steam and an economizer 12 for preheating boiler feed water as a heat recovery part for recovering the heat of the exhaust gas. The exhaust gas flowing through the rear flue 5 is cooled by heat exchange with steam or boiler feed water flowing through the superheater 10 and economizer 12 . In addition, the factory 1 is provided with a steam drum 8, and the boiler feed water that has passed through the economizer 12 is stored in the steam drum. The steam drum 8 is also connected to the furnace wall tube 6 of the furnace chamber 2 .

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

The steam drum 8 is connected with a dewatering pipe 8a and a furnace wall pipe 6 . The boiler feed water in the steam drum 8 descends from the downpipe 8 a and is introduced into the furnace wall tube 6 at the lower side of the furnace 2 to flow toward the steam drum 8 . The boiler feed water in the furnace wall tube 6 is heated by the combustion heat generated in the furnace chamber 2 and evaporated into steam in the steam drum 8 .

The steam drum 8 is connected to a saturated steam pipe 8b for discharging the steam inside. 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 generates superheated steam by superheating the steam by utilizing the heat of the exhaust gas. The superheated steam is supplied to the turbine 100 outside the factory 1 through the pipe 10a to generate electricity.

The pressure and temperature of the steam exiting the turbine 100 are lower than the pressure and temperature of the steam exiting 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 , and is condensed in the condenser 102 and returned to saturated water, and then supplied to the pump 7 . The turbine 100 is connected with a generator that converts kinetic energy obtained by the rotation of the turbine 100 into electrical energy.

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

The flow data processed in this embodiment may be any data related to the factory 1. For example, it may be data (an example of "flow data") for measuring the operating state of the factory 1 by a sensor. More specifically, it may be The measured values of the temperature, pressure, and flow rate of Plant 1 are included. FIG. 1 shows the boiler feed water flow rate u2 (an example of "flow data") supplied from the pump 7 to the economizer 12 . Furthermore, FIG. 1 shows the boiler outlet steam flow rate u3 (an example of "flow data") supplied from the superheater 10 to the turbine 100, and the saturated steam flow rate u4 supplied from the steam drum 8 to the superheater 10 (" process data”). In addition, the makeup water flow rate u1 can be controlled to follow the saturated steam flow rate u4. In addition, it is possible to control the boiler feed water flow rate u2 while monitoring both the boiler outlet steam flow rate u3 (or the 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 flow rate u1 of the makeup water increases or the flow rate difference between the flow rate u2 of the boiler feed water and the flow rate u3 of the boiler outlet steam increases. The DCS (Distributed Control System: Distributed Control System, refer to FIG. 2 ) 20, which will be described later, receives the flow data of the factory 1, such as the makeup water flow rate u1, the boiler feed water flow rate u2, the boiler outlet steam flow rate u3, and the saturated steam flow rate u4, from the factory 1, and monitors the factory 1. , and monitor plant 1 for any abnormality.

In addition, as the flow data, the make-up water flow u1, the boiler feed water flow u2, the boiler outlet steam flow u3, and the saturated steam flow u4 are exemplified, but the flow data related to the plant 1 may be other data. The process data related to Factory 1 may be data calculated based on other data such as temperature, pressure, or a plurality of process data, or may be data obtained from sensors and the like without calculation processing.

FIG. 2 is a functional block diagram of the factory 1, the DCS 20, and the operation support system 30 of the present embodiment.

DCS20 is a distributed control system used to control Factory 1. The DCS 20 obtains the process data from the sensor etc. provided in the factory 1, and supplies the control signal for controlling the factory 1 to the factory 1 according to this.

The operation support system 30 includes an edge/cloud computing unit 32 that acquires process data from the DCS 20, a monitoring device 40 that acquires process data from the edge/cloud computing unit 32 and monitors the factory 1 based on the process data, and displays the operation status of the factory 1 to the operator display device 50. The monitoring device 40 (an example of the “control device”) also functions as a control device that controls the display device 50 . Specifically, the monitoring device 40 acquires the flow data of the factory 1, generates a plurality of graphs representing the operating state of the factory 1 based on the data, displays the generated graphs in the first area of the display device 50 as an option, and uses the graphs The operating state of the factory 1 is displayed on the second area of the display device 50 . Thereby, the operating state can be analyzed from various angles.

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 having the edge/cloud computing unit 32, it is possible to collect flow data preferably from a large-scale monitoring device or a plurality of monitoring devices that are dispersed. However, the operation support system 30 does not necessarily have to include the edge/cloud computing unit 32 . At this time, the operation support system 30 acquires the flow data from the DCS 20 through the network.

The monitoring device 40 includes a control unit 42 and a memory 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 accepting unit 42B that accepts selection of a graph; generating a plurality of graphs representing the operating state of the factory 1; and the display control unit 42D causing the plurality of graphs generated by the graph generating unit 42C to be displayed in the selection area (an example of the "first area") A1 of the display device 50 as options, In addition, when the chart selection accepting unit 42B accepts that a particular chart is selected from among the plurality of charts displayed in the selection area A1, the operation state of the factory 1 is displayed on the display area of the display device 50 using the particular chart (“Second chart”). An example of "area") B1, C1, etc.

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 memory unit 44 will be described.

The chart setting DB44A stores the process data obtained in the past. In particular, the graph setting unit DB 44A stores the flow data in association with the acquisition time so that when the operator specifies a monitoring target period (target period), the flow data obtained in the target period is output.

Moreover, the graph setting DB 44A stores sample information of each graph for representing the acquired process data by a plurality of graphs (eg, graphs such as trend graphs, box graphs, scatter graphs, and cumulative frequency distribution graphs). For example, when a set of flow data is input through the flow data acquisition unit 42A, and a specific chart is selected through the chart selection accepting unit 42B, a sample for displaying the input flow data as a specific chart is read from the chart setting DB 44 . The information is used for graph generation in the graph generation unit 42C. The information stored in the chart setting DB44A can be updated appropriately.

In addition, the graph setting DB 44 stores information for setting the details of each graph. For example, when generating the graph of the scatter diagram shown in FIG. 5, the process data is classified and stored for each parameter so that the vertical axis can be set by selecting from "air flow rate", "bellows opening degree", and "air pressure". Parameters for the axis (Y-axis).

The chart history DB 44B stores history information of charts used in the past. In particular, the chart history DB 44B associates the operator with the chart used by the operator and stores the chart, whereby the chart used by the operator with high proficiency in the past can be referred to.

Next, each functional block of the control part 42 of the monitoring apparatus 40 is demonstrated.

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 generation unit 42C generates a plurality of types of graphs representing the operating state of the factory 1 based on the flow data acquired by the flow data acquisition unit 42A. Specifically, in the graph generation unit 42C, when a set of flow data is input via the flow data acquisition unit 42A, and the operator designates a period to be monitored (target period), the graph setting DB 44A reads the data obtained in the target period from the graph setting DB 44A. and read sample information for displaying the input process data by a plurality of graphs from the graph setting DB 44, and generate a plurality of graphs according to the information. For example, as shown in FIG. 4 , the graph generating unit 42C generates a graph (a graph showing the air flow rate on the vertical axis and the time on the horizontal axis) in which the air flow rate of the bellows 2c ( FIG. 1 ), which is the flow data, is displayed in time series. Alternatively, as shown in FIG. 5 , a graph of the scatter diagram of the air flow rate (a graph of the air flow rate on the vertical axis and the boiler load on the horizontal axis) is generated. The graph of the trend graph and the graph of the scatter graph display the common process data of "air flow" in different forms (one is a chronological form, the other is a non-sequential form).

The display control unit 42D causes the plurality of types of graphs generated by the graph generation unit 42C to be displayed in the selection area (an example of the “first area”) A1 of the display device 50 as options. Specifically, as shown in FIG. 3 , the display control unit 42D, in the selection area A1 included in the graph setting screen S1 displayed on the display device 50 , converts a plurality of types of graphs (for example, a trend) generated by the graph generation unit 42C in the form of icons. Graphs, box plots, scatter plots, cumulative frequency distribution graphs, etc.) are displayed in the selection area A1 as an option. The operator can select a specific graph (eg, an icon _IT of a trend graph, an icon _IS of a scatter graph) from the graphs displayed as icons by a double-click operation or the like.

Moreover, the display control part 42D displays the information for setting the detailed content of each graph. For example, as shown in FIG. 3, the display control part 42D performs the display for selecting the period (target period) which becomes the monitoring object 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. Furthermore, as shown in FIG. 3 , the display control unit 42D displays, in the item setting areas A3 and A4 included in the graph setting screen S1 , the vertical axis or the horizontal axis for setting a specific graph (for example, the scatter graph in FIG. 5 ) to be generated. Option of the parameter of the axis, or display to adjust the length of the vertical axis or the horizontal axis. The operator can select the parameter of the vertical axis or the horizontal axis from the options in the item setting area A3 displayed by the display control unit 42D, or adjust the vertical axis or the horizontal axis by appropriately changing the value displayed in the item setting area A4 by the display control unit 42D. length. Furthermore, as shown in FIG. 3 , the display control unit 42D displays the length (adjustment value) of the vertical axis or the horizontal axis of a specific graph (for example, the scatter diagram of FIG. 5 ) in the specific value display area A5 included in the graph setting screen S1 ), the maximum value, minimum value, average value, etc. of the parameters on the vertical axis or horizontal axis.

In addition, when the display control unit 42D accepts that a specific graph is selected from the plurality of graphs displayed in the selection area A1 by, for example, a double-click operation, the graph accepting unit 42C causes the factory 1 to use the selected specific graph. The operating state is displayed on the display areas (an example of the "second area") B1 and C1 of the display device 50 . Specifically, when the trend graph (icon I _T ) is selected from the graph displayed in the selection area A1 in the form of an icon, the display control unit 42D displays the first graph display screen S2 on the display device 50 as shown in FIG. 4 . The graph of the trend graph is displayed in the display area B1 included in the . Thereby, the operation state of the factory 1 is displayed in the graph of the trend graph.

In the graph of the trend graph shown in Figure 4, the vertical axis is the air flow rate, and the horizontal axis is the time, indicating a certain target period (21:45 on June 12, 2020 to 21:45 on June 19, 2020) ) in the time history of air flow. The state of the increase and decrease of the air flow rate over time can be grasped from the graph of the trend graph, but whether the time history represents the abnormal state of the plant 1 or the normal state may not be determined depending on the proficiency of the operator.

Therefore, the operator selects a non-sequential graph (eg, a scatter graph) from the graphs displayed in the selection area A1 of the display device 50 as icons. When the display control unit 42D selects the scatter graph (icon _IS ) from the graph displayed in the selection area A1 in the form of an icon, as shown in FIG. 5 , the display included in the second graph display screen S3 displayed on the display device 50 Area C1 displays the graph of the scatter plot. Thereby, the operation state of the factory 1 is displayed by the graph of a scatter diagram.

In the graph of the scatter diagram shown in Fig. 5, the vertical axis is the air flow rate, and the horizontal axis is the boiler load, and the target period of the graph of the trend graph (June 12, 2020 21:45 to June 19, 2020) is displayed. Correlation between air flow and boiler load during the same period. From the graph of the scatter diagram, it can be understood that the air flow rate gradually increases with the increase of the boiler load, but such a correlation is usually observed when the factory 1 is in a normal state, so it can be assumed that the factory 1 does not have any Special exception.

In addition, the display control unit 42D can register and display the history information of the graphs used in the past. That is, the display control unit 42D can input the predetermined information into the registration area A6 of FIG. 3 , for example, the graph generated through the above steps and the graph surrounding information (the name of the created operator, the flow data used, The graph type, axis, adjustment value, etc.) are stored (registered) together in the graph history DB 44B. Then, for example, the display control unit 42D can also read the charts (the charts in which various items are set) that the specific operator with high proficiency used in the past from the chart history DB 44B, and display the charts on the chart display screen S2 (S3) Included display area B1 (C1). Thereby, even an operator with a relatively low level of proficiency can know how the chart is arranged (item setting) and used by an operator with a high level of proficiency in the past. Therefore, the monitoring point can be learned, and the operation proficiency can be easily improved.

FIG. 6 is a diagram showing the physical configuration of the operation support system 30 for realizing the present embodiment. However, the edge/cloud computing unit 32 can adopt a known physical structure, so the description is omitted, and the physical structure of the operation support system 30 other than the edge/cloud computing unit 32 will be described below.

The operation support system 30 includes a CPU (Central Processing Unit) 30A corresponding to an arithmetic unit, a RAM (Random Access Memory) 30B corresponding to a memory unit, and a ROM (Read only Memory) body) 30C, a communication unit 30D, an input unit 30E, and a display unit 30F. These structures are connected by bus bars in such a way that they can send/receive data to each other. In addition, in this example, although the case where the operation support system 30 is comprised by a single computer was demonstrated, the operation support system 30 may be comprised by several computers. For example, the display unit 30F may be constituted by 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. Furthermore, part of the structure can be located in remote areas. For example, a part of the ROM 30C may be installed in a remote area, and communication may be possible through a communication network.

The CPU 30A is an arithmetic unit that executes control processing, arithmetic processing, and the like included in the present invention 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 flow data) from the RAM 30B, the ROM 30C, the communication unit 30D, the input unit 30E, etc., and displays the calculation processing results on the display unit 30F or stores them in the RAM 30B or ROM 30C.

The RAM 30B functions as a cache memory in the memory portion, and can be a volatile semiconductor memory element such as SRAM and DRAM, for example.

The ROM 30C functions as a main memory in the memory section, and may be formed of, for example, a flash memory or a non-volatile semiconductor memory element capable of electrically rewriting information, or an HDD capable of magnetically rewriting information. For example, the ROM 30C can store computer programs and data for executing the processing including each control and each arithmetic processing shown in the present invention.

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

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

The display part 30F visually displays the calculation result based on CPU30A, and is comprised by LCD (Liquid Crystal Display: liquid crystal display), for example.

In the above-mentioned physical structure, the functions of the control unit 42 constituting the monitoring device 40 can be realized mainly by the CPU 30A executing the computer program, the databases constituting the memory unit 44 can be realized mainly by the ROM 30C, and the display unit 30F can be realized mainly. Display device 50 .

In addition, the operation support system 30 may be constituted by a tablet terminal. By configuring the operation support system 30 by the tablet terminal, the operation support system 30 can be carried, for example, the operation support system 30 can be used while inspecting the factory 1 .

Next, a method (control method) for controlling the display device 50 for displaying the operation state of the factory 1 by using the operation support system 30 in the present embodiment will be described. FIG. 7 is a flowchart including such a display method. In addition, the method of displaying the operating state of the factory 1 by the control method of 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 operation support system 30 acquires the process data of the factory 1 via the edge/cloud computing unit 32 and the DCS 20 (data acquisition step: 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 graphs representing the operating state of the plant 1 based on the flow 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 operation support system 30 displays the plurality of graphs generated in the graph generation step S72 as icons in the selection area A1 of the display device 50 as options (option display control step : S73). In addition, in the option display control step S73, the step of displaying a plurality of graphs in the selection area A1 as options in the form of icons corresponds to the option display step of the display method in the present invention.

Next, when the operator selects any one of a plurality of graphs displayed in the selection area A1 of the display device 50 as icons by a double-click operation or the like, the graph accepting unit 42B of the control unit 42 of the monitoring device 40 of the operation support system 30 selects any one of the graphs. Graph selection from the operator is accepted (graph selection accepting step: S74). Then, the display control unit 42D of the control unit 42 of the monitoring device 40 of the operation support system 30 causes the specific graph (for example, a trend graph or a scatter graph graph) accepted in the graph selection accepting step S74 to be displayed on the display area of the display device 50 B1, C1 (graph display control step: S75). Thereby, the operation state of the factory 1 is displayed by a specific graph (for example, the graph of a trend graph and a scatter graph). In addition, in the graph display control step S75, the step of displaying the operation state of the plant 1 in the display areas B1 and C1 using a specific graph corresponds to the operation state display step of the display method of the present invention.

According to the above-described embodiment, a plurality of types of graphs showing the operating state of the factory 1 can be displayed on the selection area A1 of the display device 50 as options. Therefore, the operator can select an arbitrary graph from a plurality of graphs displayed in the selection area A1 of the display device 50 , and can display the operation state of the plant 1 on the display areas B1 and C1 of the display device 50 using the selected graph. Therefore, since the operation state of the plant 1 can be displayed by a plurality of graphs, it is helpful to analyze the operation state from various angles.

In addition, according to the above embodiment, as a plurality of types of graphs, a graph showing common process data in different forms (that is, a graph such as a trend graph showing the process of Both graphs such as scatter graphs displayed in time series), it is possible to determine the operation state of the plant 1 that cannot be found only by the time series graphs from the non-sequential graphs (for example, those with a high possibility of gradually transitioning to an abnormal state). operation state), and can grasp the cause of the abnormality of the factory 1 at an early stage and take measures in advance, which contributes to the continuous and stable operation of the factory 1.

Various modifications can be made to the present invention without departing from the gist of the present invention. For example, in the above-described embodiment, the display control unit 42D reads a chart (a chart in which various items are set) used in the past by a specific operator with high proficiency from the chart history DB 44B and displays the chart in the display area B1 (C1) By this, the operator with relatively low proficiency can learn past graph examples of the operator with high proficiency, but further, the display control unit 42D can also automatically display a sample of the optimal graph according to the situation.

At this time, the display control unit 42D can perform mechanical learning on the correlation between a specific situation (for example, when a warning occurs) and a graph used by an operator with high proficiency in that situation, and record the learning result in the When it is determined from the flow data that a specific situation has been accessed, the chart history DB automatically reads a chart related to the situation from the chart history DB and displays it in the display area B1 ( C1 ). Machine learning models include models using neural networks such as convolutional neural networks (CNN), models using regression models such as Gaussian process regression, and models using tree algorithms such as decision trees. When collecting information for machine learning, the edge/cloud computing unit 32 can be used.

In addition, the present invention can be modified in various ways as long as it does not deviate from the gist of the present invention. For example, a part of the constituent elements of one embodiment can be added to another embodiment within the general creative ability of those skilled in the art. Moreover, some components of one embodiment can be interchanged with corresponding components of another embodiment.

1: Factory 40: Monitoring device (control device) 42A: Process Data Acquisition Department (Acquisition Department) 42B: Chart Selection Acceptance Department (Acceptance Department) 42C: Chart Generation Department (Generation Department) 42D: Display Control Department 50: Display device A1: Selection area (Area 1) B1: Display area (2nd area) C1: Display area (2nd area) S71: Data acquisition step (acquisition step) S72: Diagram generating step (generating step) S73: Option display control step (display control step) S74: Chart selection acceptance step (acceptance step) S75: Graph display control steps (display control steps)

Fig. 1 is a schematic diagram showing the overall configuration of a factory to be monitored in the embodiment of the present invention. [ Fig. 2] Fig. 2 is a diagram showing the functional configuration of the operation support system in the embodiment of the present invention. 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. [ Fig. 4] Fig. 4 is a diagram showing an example of a timing chart screen displayed on the display device according to the embodiment of the present invention. [ Fig. 5] Fig. 5 is a diagram showing an example of a non-sequential graph screen displayed on the display device according to the embodiment of the present invention. [ Fig. 6] Fig. 6 is a diagram showing the physical configuration of the operation support system in the embodiment of the present invention. FIG. 7 is a flowchart showing an example of the control method according to the embodiment of the present invention.

1: Factory

20: DCS

30: Operation Support System

32: Edge/Cloud Computing Department

40: Monitoring device (control device)

42: Control Department

42A: Process Data Acquisition Department (Acquisition Department)

42B: Chart Selection Acceptance Department (Acceptance Department)

42C: Chart Generation Department (Generation Department)

42D: Display Control Department

44: Memory Department

44A: Chart setting DB

44B: Chart History DB

50: Display device

Claims (18)

A display device for displaying the operating state of a factory, wherein, Display a plurality of graphs representing the operating state of the plant in the first area as an option, and display the operating state of the plant in the second area using the graph. The display device of claim 1, wherein, The above-mentioned plural kinds of graphs represent the history of the process data, and the history of the above-mentioned process data shows the operation state of the above-mentioned factory. The display device of claim 2, wherein, The above-mentioned plural kinds of diagrams represent the common above-mentioned process data in different forms. The display device of claim 3, wherein, The above-mentioned plural kinds 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 not in time series. The display device of any one of claim 1 to claim 4, wherein, When a specific graph is selected among the plurality of graphs displayed in the first area, the operation state of the plant is displayed in the second area using the specific graph. A display method is to display the operation state of a factory, and the aforementioned display method includes: an option display step of displaying a plurality of graphs representing the operating status of the plant in the first area as options; and The operation state display step is for displaying the operation state of the plant in the second area using any of the plurality of graphs displayed in the option display step. A control device is a display device that controls and displays the operating state of a factory, the control device having: The acquisition department, which is to acquire the process data of the aforementioned factories; a generating unit that generates a plurality of graphs representing the operating state of the factory based on the flow data obtained by the obtaining unit; and The display control unit displays the plurality of graphs in the first area of the display device as options, and displays the operation state of the plant in the second area of the display device using the graphs. The control device of claim 7, wherein, There is also an acceptance department that accepts the selection of charts; When it is accepted by the accepting unit that a specific graph is selected among the plurality of graphs displayed in the first area, the display control unit causes the operation state of the factory to be displayed on the second area using the specific graph . The control device of claim 7 or claim 8, wherein, The display control unit stores the graph generated by the generation unit in the memory unit. The control device of claim 9, wherein, The display control unit reads the graph stored in the memory unit and displays it on the second area of the display device. A control method is to control a display device for displaying the operating state of a factory, the aforementioned control method comprising: Obtaining step, which is to obtain the process data of the aforementioned factory; a generating step of generating a plurality of graphs representing the operating state of the plant based on the flow data obtained in the obtaining step; and In the display control step, the plurality of graphs are displayed on the first area of the display device as options, and the operation state of the factory is displayed on the second area of the display device using the graphs. The control method of claim 9, wherein, There are more acceptance steps for accepting the selection of charts; When it is accepted in the receiving step that a specific graph is selected from among the plurality of graphs displayed in the first area, in the display control step, the specific graph is used to display the operating state of the plant on the above-mentioned display. Zone 2. As in the control method of claim 11 or claim 12, wherein, In the display control step, the graph generated in the generation step is stored in the memory unit. The control method of claim 13, wherein, In the display control step, the graph stored in the memory unit is read and displayed on the second area of the display device. A computer program that causes a computer to execute a control method for controlling a display device that displays the operating state of a factory, wherein, The aforementioned control methods include: Obtaining step, which is to obtain the process data of the aforementioned factory; a generating step of generating a plurality of graphs representing the operating state of the factory according to the flow data obtained in the obtaining step; and In the display control step, the plurality of graphs are displayed on the first area of the display device as options, and the operation state of the factory is displayed on the second area of the display device using the graphs. The computer program of claim 15, wherein, The aforementioned control method further includes an accepting step of accepting the selection of the chart; In the receiving step, when it is accepted that a specific graph is selected among the plurality of graphs displayed in the first area, in the display control step, the specific graph is used to display the operation state of the plant on the The aforementioned second area. As in claim 15 or the computer program of claim 16, wherein, In the display control step, the graph generated in the generation step is stored in the memory unit. The computer program of claim 17, wherein, In the display control step, the graph stored in the memory unit is read and displayed on the second area of the display device.

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