TWI818346B - Display device, display method, control device, control method and computer program - Google Patents

Abstract

[Project] Provide a display device, display method, control device, control method and computer program that can display the operating status of a factory using a plurality of graphs and help analyze the operating status from various angles. [Solution] A display device (50) that displays the operating status of the factory (1) displays a plurality of graphs indicating the operating status of the factory (1) in the first area (A1) as options, and uses the graphs to display the operating status of the factory (1). The operating status is displayed in the second area (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.

Various technologies for monitoring the operating status of factories have been proposed. For example, a factory monitoring device is proposed that compares the process value obtained from the monitoring target point in the factory in time series with the corresponding limit value, determines the time point when the process value exceeds the limit value, and determines the time point according to which the process value exceeds the limit value. The processing values and corresponding limit values within the time range set at this time point are displayed on the display device in time sequence (refer to Patent Document 1). [Prior technical literature]

[Patent Document 1] Japanese Patent Publication No. 2016-115195

[Problem to be solved by the invention]

In the technology described in Patent Document 1, processing values can be displayed as a time-series graph. However, it is sometimes difficult to determine whether the operating status of a factory is normal or abnormal using only such a single type of graph.

The present invention was completed in view of the relevant circumstances, and aims to provide a display device, a display method, a control device, a control method and a computer program that can display the operating status of a factory using a plurality of graphs and help analyze the operating status from various angles. [Technical means to solve problems]

A first aspect of the present invention is a display device for displaying the operating status of a factory, which displays a plurality of graphs indicating the operating status of the factory as options in a first area, and displays the operating status of the factory in a second area using graphs. In this display device, when a specific graph is selected from a plurality of graphs displayed in the first area, the operating status of the factory 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 status of a factory, which includes: an option display step of displaying a plurality of graphs indicating the operating status of the factory in a first area of a predetermined screen as options; and an operating status display step. , display the operating status of the factory in the second area using any of the plurality of graphs displayed in the option display step. In the operating status display step of this display method, when a specific graph is selected from a plurality of graphs displayed in the option display step, the operating status of the factory can be displayed in the second area using the specific graph.

A third aspect of the present invention is a control device that controls a display device that displays the operating status of a factory. The control device includes an acquisition unit that acquires process data of the factory, and a generation unit that generates a representation of the factory based on the process data acquired by the acquisition unit. A plurality of graphs of the operating status; and a display control unit that causes the plurality of graphs to be displayed in the first area of the display device as options, and uses the graph to display the operating status of the factory in the second area of the display device. The control device may further include a reception unit that accepts the selection of a graph. When the reception unit accepts the selection of a specific graph among a plurality of graphs displayed in the first area, the display control unit may cause the factory to use the specific graph. The operating status is displayed in the 2nd area.

A fourth aspect of the present invention is a control method for controlling a display device that displays the operating status of a factory, which includes: an acquisition step of acquiring process data of the factory; and a generating step of generating a representation based on the process data acquired in the acquisition step. A plurality of graphs of the operating status of the factory; and a display control step to display the plurality of graphs as options in the first area of the display device, and to display the operating status of the factory in the second area of the display device using the graph. This control method may further include an acceptance step of accepting the selection of a graph. When the acceptance step accepts the selection of a specific graph among a plurality of graphs displayed in the first area, the specific graph may be used in the display control step. Display the factory's operating status in the second area.

The 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 status of a factory. The control method includes: an acquisition step to acquire the process data of the factory; and a generation step to obtain the factory process data based on the steps in the acquisition step. The obtained process data is used to generate a plurality of graphs showing the operating status of the factory; and the display control step is to display the plurality of graphs in the first area of the display device as options, and to use the graph to display the operating status of the factory in the first area of the display device. 2 area. The control method executed by this computer program may further include an acceptance step of accepting the selection of a graph. When the selection of a specific graph among a plurality of graphs displayed in the first area is accepted in the acceptance step, the display control step The operating status of the factory can be displayed in the second area using a specific graph.

If the related structure and method are adopted, a plurality of graphs representing the operating status of the factory can be displayed as options in the first area of the display device. Therefore, the operator can select any graph from a plurality of graphs displayed in the first area of the display device, and can use the selected graph to display the operating status of the factory in the second area of the display device. Therefore, since the operating status of the factory can be displayed on a plurality of graphs, it is helpful to analyze the operating status from various angles.

As the plurality of graphs in various aspects of the present invention, graphs showing the history of process data showing the operating status of the factory can be used. Furthermore, as a plurality of types of graphs, those expressing common process data in different formats can be used (for example, including both a graph that displays the history of the process data in chronological order and a graph that displays the history of the process data in non-chronological order).

By doing so, it is possible to determine the operating status of the plant that cannot be found only by sequential charts using non-sequential charts (for example, an operating state that is likely to gradually transform into an abnormal state), and to grasp the status of the factory at an early stage. Abnormalities require taking measures in advance to help the factory continue to operate stably.

The display control unit in the third aspect of the present invention can store the graph generated by the generating unit in the memory unit. In the display control step in the fourth and fifth aspects of the invention, the display control unit can cause the graph generated by the generating unit to be stored in the storage unit. Charts are stored in memory.

If relevant structures and methods are adopted, charts 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 charts used by highly skilled operators 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 step in the fourth and fifth aspects of the present invention, , the graph stored in the memory unit can be read and displayed in the second area of the display device.

For example, if the related structure and method are adopted, a chart (a chart with various items set) used by a specific operator with high proficiency in the past can be read, and the chart can be displayed in the second area of the display device. Thereby, even an operator with relatively low proficiency can learn how to arrange (item settings) charts used by highly proficient operators in the past. Therefore, monitoring points can be learned, and operation proficiency can be easily improved. [Effects of the 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 that can display the operating status of a factory using a plurality of graphs and help analyze the operating status from various angles.

Hereinafter, embodiments of the present invention will be described using drawings. The following embodiments are examples for illustrating the present invention, and are not intended to limit the present invention only to these embodiments. Monitoring objects using the present invention include factories. Regarding factories, for example, power plants including boilers, incineration plants, chemical plants, wastewater treatment plants, etc. are targeted for those where process data can be obtained. In addition to the examples of process data of a power plant described in the following embodiments, for example, the process data of an incineration plant that incinerates waste includes the amount and temperature of the air fed into the incinerator, the gas temperature and composition factors at the furnace outlet, and so on. Measurement data such as temperature, pressure, flow rate, and combustion status of various parts measured by sensors, etc. For example, the process data of a chemical plant includes the temperature difference between processes or between two or more thermocouples, operating pressure, generated logistics parameters (speed, density, etc.), cooling water flow, output measured values, valve sensor data wait. For example, the process data of a wastewater treatment plant includes the raw water inflow and outflow of the water tank output from each sensor and each electric meter, the water level, the quality of the treated water, the operation volume of various pumps, etc., etc.

FIG. 1 is a schematic diagram showing the overall structure of a factory 1 as an example of a monitoring target in the embodiment of the present invention. For example, the factory 1 of this embodiment is a power plant equipped with a circulating fluidized bed boiler (Circulating Fluidized Bed type) that circulates circulating materials such as silica sand flowing at high temperatures and burns fuel to generate steam. As the fuel of the factory 1, in addition to fossil fuels such as coal, 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 factory 1 is configured such that fuel is burned in the furnace 2, the cyclone 3 functioning as a solid gas separation device separates the circulating material from the exhaust gas, and the separated circulating material is returned to the furnace 2 and circulated. The separated recycled materials are returned to the lower part of the furnace 2 through the recycled material recovery pipe 4 connected to the lower part of the cyclone 3 . In addition, the lower part of the recycled material recovery pipe 4 is connected to the lower part of the furnace 2 through the annular sealing part 4 a in which the flow path is narrowed. Thereby, a predetermined amount of recycled material is stored in the lower part of the recycled 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 is provided with a furnace 2 for burning fuel and a heat exchanger for generating steam and the like using heat obtained by combustion. A fuel supply port 2a for supplying fuel is provided in the middle part of the furnace 2, and a gas outlet 2b for discharging combustion gas is provided at the upper part of the furnace 2. The fuel supplied to the furnace 2 from a fuel supply device (not shown) is supplied to the inside of the furnace 2 through the fuel supply port 2a. Furthermore, the furnace wall of the furnace 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 2 .

In the furnace 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 is burned at, for example, about 800 to 900°C while flowing. The combustion gas generated in the furnace 2 is introduced into the cyclone 3 along with the circulating material. The cyclone 3 separates the circulating material and gas through 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 2, a part of the circulating material called the machine tool material in the furnace remains at the bottom. The machine tool materials may contain coarse particles and exhaust impurities that are not suitable for circulating flow, and flow failure may occur due to such machine tool materials that are not suitable for circulating materials. In order to suppress such poor flow, in the furnace 2, the machine tool materials in the furnace are 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 metal, coarse particles and other inappropriate materials in a circulation pipe (not shown). The recycled material in the furnace 2 circulates within the circulation system composed of the furnace 2, the cyclone 3 and the recycled material recovery pipe 4.

The rear flue 5 has a flow path for allowing the gas discharged from the cyclone 3 to flow into the rear section. The rear flue 5 has a superheater 10 for generating superheated steam and an economizer 12 for preheating boiler feed water as an exhaust heat recovery unit 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 heat exchanger 10 and the economizer 12 . Furthermore, 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 2.

The economizer 12 transfers the heat of the exhaust gas to the boiler feed water to preheat the boiler feed water. The economizer 12 is connected to the pump 7 through a pipe 21 and to the steam drum 8 through a pipe 22 . The boiler feed 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 .

The steam drum 8 is connected with a downwater pipe 8a and a furnace wall pipe 6. The boiler feed water in the steam drum 8 descends from the downwater pipe 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 2 and evaporates into steam in the steam drum 8 .

The steam drum 8 is connected to a saturated steam pipe 8b for discharging the internal steam. 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 is supplied to the turbine 100 outside the factory 1 through the pipe 10a and used to generate electricity.

The pressure and temperature of the steam discharged from the turbine 100 are lower than those of the steam discharged from the superheater 10 . Although not particularly limited, the pressure of the steam supplied to the turbine 100 is approximately 10 to 17 MPa, and the temperature is approximately 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 , is condensed in the condenser 102 and returned to saturated water, and then supplied to the pump 7 . The turbine 100 is connected to a generator that converts kinetic energy obtained by the rotation of the turbine 100 into electrical energy.

Pump 7a supplies makeup water to keep the water level of condenser 102 constant. FIG. 1 shows the supply water flow rate u1 supplied by the pump 7a (an example of "flow data").

The process data processed in this embodiment may be any data related to the factory 1. For example, it may be data measuring the operating status of the factory 1 using a sensor (an example of "process data"). More specifically, it may be Including the measured values of temperature, pressure, flow rate, etc. of Factory 1. FIG. 1 shows the boiler feed water flow rate u2 supplied from the pump 7 to the economizer 12 (an example of "flow data"). Furthermore, FIG. 1 shows the boiler outlet steam flow rate u3 supplied from the superheater 10 to the turbine 100 (an example of "process data"), and also shows the saturated steam flow rate u4 supplied from the steam drum 8 to the superheater 10 (" An example of "process information"). In addition, the makeup water flow rate u1 can be controlled to follow the saturated steam flow rate u4. Moreover, it can be controlled so that the boiler feed water flow rate u2 can be adjusted 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 factory 1, the make-up water flow u1 increases or the flow difference between the boiler feed water flow u2 and the boiler outlet steam flow u3 increases. The DCS (Distributed Control System, refer to Figure 2) 20 described later receives the process data of the factory 1 such as the makeup water flow u1, the boiler feed water flow u2, the boiler outlet steam flow u3, and the saturated steam flow u4 from the factory 1, and monitors the factory 1 The operation status of factory 1 and monitor whether any abnormality occurs in factory 1.

In addition, as the process data, 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 are exemplified, but the process data related to the factory 1 may also be other data. The process data related to factory 1 can be data calculated based on other data such as temperature and pressure or multiple process data, or can be data obtained from sensors, etc. without calculation and processing.

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

DCS20 is a distributed control system used to control factory 1. The DCS 20 obtains process data from sensors installed in the factory 1 and supplies control signals for controlling the factory 1 to the factory 1 based on the data.

The operation support system 30 includes an edge/cloud computing unit 32 that obtains process data from the DCS 20, a monitoring device 40 that obtains process data from the edge/cloud computing unit 32, 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 process data of the factory 1 and generates a plurality of graphs representing the operating status of the factory 1 based on the data, displays the generated graphs in the first area of the display device 50 as options, and uses the graphs. The operation status of the factory 1 is displayed in the second area of the display device 50 . This allows the operating status to be analyzed from various angles.

The edge/cloud computing unit 32 includes a plurality of edge servers distributed at the periphery of the network and a cloud data server that collects process data from the plurality of edge servers and provides the data to the monitoring device 40 . By providing the edge/cloud computing unit 32, process data can be better collected from a large-scale monitoring device or a plurality of monitoring devices 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 obtains process 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 acceptance unit 42B that accepts the selection of graphs; and a graph generation unit 42C that generates data based on the process data acquired by the process data acquisition unit 42A. generate a plurality of graphs representing the operating status of the factory 1; and the display control unit 42D causes the plurality 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, And when the graph selection accepting unit 42B accepts the selection of a specific graph among the plurality of graphs displayed in the selection area A1, the operation status of the factory 1 is displayed in the display area of the display device 50 using the specific graph ("Second An example of "area") B1, C1, etc.

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

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

In addition, the graph setting DB 44A stores sample information of each graph for expressing the acquired process data in a plurality of graphs (for example, graphs such as trend graphs, box graphs, scatter graphs, and cumulative frequency distribution graphs). For example, if a set of process data is input via the process data acquisition unit 42A and a specific chart is selected via the chart selection acceptance unit 42B, a sample for displaying the input process data in a specific chart is read from the chart setting DB 44 The information is used for graph generation in the graph generation unit 42C. Information stored in chart settings 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 scatter diagram shown in Fig. 5, the process data is classified and stored for each parameter so that the longitudinal direction can be set by selecting from "air flow rate", "air box opening degree", and "air pressure". Axis (Y-axis) parameters.

Chart history DB44B stores the history information of charts used in the past. In particular, the chart history DB 44B stores the chart used by the operator in association with the operator, thereby making it possible to refer to the chart used by the operator who was highly skilled in the past.

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

The graph generation unit 42C generates a plurality of graphs representing the operation status of the factory 1 based on the process data acquired by the process data acquisition unit 42A. Specifically, in the graph generating unit 42C, when a set of process data is input via the process data acquisition unit 42A and the operator specifies a period to be monitored (target period), the period obtained during the target period is read from the graph setting DB 44A. process data, and reads sample information for displaying the input process data through multiple charts from the chart setting DB44, and generates multiple charts based on the information. For example, as shown in FIG. 4 , the graph generating unit 42C generates a graph (a graph in which the vertical axis represents the air flow rate and the horizontal axis represents time) in which the air flow rate of the air box 2 c (FIG. 1 ) as process data is displayed in time series. Alternatively, a graph of a scatter diagram of the air flow rate is generated as shown in FIG. 5 (a graph in which the vertical axis represents the air flow rate and the horizontal axis represents the boiler load). The graph of the trend chart and the graph of the scatter chart present the common process data "air flow" in different forms (one is a sequential form, the other is a non-sequential form).

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

Furthermore, 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 performs display for selecting a period to be monitored (target period) in the period setting area A2 included in the graph setting screen S1. The operator can appropriately select the date and time from the options displayed in the period setting area A2. Furthermore, as shown in FIG. 3 , the display control unit 42D displays the vertical axis or the horizontal axis for setting the vertical axis or horizontal axis when generating a specific graph (for example, the scatter graph in FIG. 5 ) in the item setting areas A3 and A4 included in the graph setting screen S1 . Options for axis parameters, or display to adjust the length of the vertical or horizontal axis. The operator can select the parameters 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 appropriately change the values displayed in the item setting area A4 by the display control unit 42D to adjust the vertical axis or the horizontal axis. 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 graph 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.

Furthermore, when the graph accepting unit 42C accepts the selection of a specific graph among the plurality of graphs displayed in the selection area A1 by, for example, a double-click operation, the display control unit 42D causes the selected specific graph to be used in the factory 1 The operating status is displayed in the display areas (an example of the “second area”) B1 and C1 of the display device 50 . Specifically, when the display control unit 42D selects the trend graph (icon _IT ) from the graph displayed in the selection area A1 in the icon format, as shown in FIG. 4, on the first graph display screen S2 displayed on the display device 50 Included in the display area B1 is a graph showing a trend graph. Thereby, the operation status of the factory 1 is displayed in the form of a trend graph.

In the trend chart shown in Figure 4, the vertical axis is air flow and the horizontal axis is time, showing a certain target period (21:45 on June 12, 2020 to 21:45 on June 19, 2020 ) the time history of air flow within. The state of the air flow rate increasing and decreasing with the passage of time can be grasped from the graph of this trend graph. However, whether the time history represents an abnormal state or a normal state of the factory 1 may not be determined depending on the skill of the operator.

Therefore, the operator selects a non-sequential graph (for example, a scatter graph) from among the graphs displayed in the selection area A1 of the display device 50 in the form of icons. When the display control unit 42D selects the scatter graph (icon I _S ) from the graph displayed in the selection area A1 in the icon format, as shown in FIG. 5 , the display included in the second graph display screen S3 displayed on the display device 50 Area C1 shows the graph of the scatter plot. Thereby, the operation status of the factory 1 is displayed using a scatter diagram.

In the scatter chart shown in Figure 5, the vertical axis is the air flow rate and the horizontal axis is the boiler load. The target period of the trend chart is shown (from 21:45 on June 12, 2020 to June 19, 2020). 21:45 on the same day), the correlation between air flow and boiler load during the same period. From the graph of this scatter diagram, it can be seen that the air flow rate gradually increases as the boiler load increases. However, such a correlation is usually observed when Factory 1 is in a normal state. Therefore, it can be inferred that there is no such correlation in Factory 1. Special anomaly.

In addition, the display control unit 42D can register and display the history information of charts used in the past. That is, the display control unit 42D can, for example, input predetermined information into the registration area A6 in FIG. 3 to display the graph generated through the above steps and the peripheral information of the graph (the name of the operator created, the process data used, The chart type, axis, adjustment value, etc.) are stored (registered) in the chart history DB44B. Then, for example, the display control unit 42D can read the graphs (graphs in which various items are set) used by a specific operator with high proficiency in the past from the graph history DB 44B, and display the graphs on the graph display screen S2 (S3). Includes display area B1(C1). Thereby, even an operator with relatively low proficiency can learn how to arrange (item settings) charts used by highly proficient operators in the past. Therefore, monitoring points can be learned, and operation proficiency can be easily improved.

FIG. 6 is a diagram showing the physical structure of the operation support system 30 for realizing this embodiment. However, the edge/cloud computing unit 32 can adopt a conventional physical structure, so the description is omitted. The physical structure of the operation support system 30 except the edge/cloud computing unit 32 will be described below.

The operation support system 30 has a CPU (Central Processing Unit: Central Processing Unit) 30A equivalent to a calculation unit, a RAM (Random Access Memory: Random Access Memory) 30B equivalent to a memory unit, and a ROM (Read only Memory: read-only memory). body) 30C, communication unit 30D, input unit 30E, and display unit 30F. These structures are connected through buses in such a way that they can send/receive data to each other. In addition, in this example, the case where the operation support system 30 is composed of one computer has been described, but the operation support system 30 may be composed of a plurality of computers. For example, the display unit 30F may be configured by a plurality of displays. In addition, the structure shown in FIG. 6 is only an example, and some of these structures may not be included. Furthermore, parts of the structure can be located in remote locations. For example, it is also possible to configure a part of the ROM 30C to be installed in a remote area and enable communication through a communication network.

The CPU 30A is a calculation unit that performs control processing, calculation processing, etc. included in the present invention by executing computer programs recorded in the ROM 30C and the like. CPU30A has a processor. CPU 30A receives various information (including process data) from RAM 30B, ROM 30C, communication unit 30D, input unit 30E, etc., and causes calculation processing results and the like to be displayed on display unit 30F or stored in RAM 30B or ROM 30C.

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

The ROM 30C functions as a main memory in the memory unit, and may be composed of, for example, a non-volatile semiconductor memory element such as a flash memory that can electrically rewrite information, or an HDD that can magnetically rewrite information. For example, ROM 30C can store computer programs and data used to perform processing including various controls and various calculation processes shown in the present invention.

The communication unit 30D is an interface for connecting the operation support system 30 to 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 data input, chart selection, and the like from the operator, and may include a keyboard and a touch panel, for example.

The display unit 30F visually displays the calculation results based on the CPU 30A, and is composed of, for example, an LCD (Liquid Crystal Display).

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

In addition, the operation support system 30 may be configured by a tablet terminal. The operation support system 30 is constituted by a tablet terminal, whereby the operation support system 30 can be carried with the tablet terminal. For example, the operation support system 30 can be used while inspecting the factory 1 .

Next, a method (control method) of controlling the display device 50 that displays the operating status of the factory 1 using the operation support system 30 in this embodiment will be described. Figure 7 is a flow chart including such a display method. In addition, the method of displaying the operating status of the factory 1 by the control method of this 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 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 operation status of the factory 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 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, through the option display control step S73, the step of displaying a plurality of graphs as icons in the selection area A1 as options corresponds to the option display step of the display method in the present invention.

Next, if the operator selects any one of the plurality of graphs displayed in the selection area A1 of the display device 50 in the form of icons through a double-click operation, the graph accepting unit 42B of the control unit 42 of the monitoring device 40 of the operation support system 30 The selection of a chart from the operator is accepted (chart selection acceptance 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 acceptance step S74 to be displayed in the display area of the display device 50 B1, C1 (chart display control step: S75). Thereby, the operation status of the factory 1 is displayed using a specific graph (for example, a trend graph or a scatter graph). In addition, in the graph display control step S75, the step of displaying the operating status of the factory 1 in the display areas B1 and C1 using a specific graph corresponds to the operating status display step of the display method in the present invention.

According to the above embodiment, a plurality of graphs representing the operating status of the factory 1 can be displayed as options in the selection area A1 of the display device 50 . Therefore, the operator can select any graph from a plurality of graphs displayed in the selection area A1 of the display device 50 and display the operating status of the factory 1 in the display areas B1 and C1 of the display device 50 using the selected graph. Therefore, since the operation status of the factory 1 can be displayed on a plurality of graphs, it is helpful to analyze the operation status from various angles.

Furthermore, according to the above embodiment, as a plurality of graphs, graphs that display common process data in different formats (that is, graphs such as trend charts that display the history of process data in time series and graphs that display the history of process data in different formats) are used. Both charts such as scatter charts displayed in chronological order), therefore the operating status of the plant 1 that cannot be discovered only by the chronological chart can be determined by the non-sequential chart (for example, there is a high possibility of gradually changing to an abnormal state). operating status), and can grasp the abnormal factors of Factory 1 at an early stage and take measures in advance, which will help the continuous and stable operation of Factory 1.

The present invention can be modified in various ways without departing from the gist of the invention. For example, in the above embodiment, the display control unit 42D reads the graphs (graphs in which various items are set) used by a specific operator with high proficiency in the past from the graph history DB 44B and displays the graphs in the display area B1 (C1) By this, an operator with relatively low proficiency can learn examples of past graphs from an operator with high proficiency. Furthermore, the display control unit 42D can also automatically display a sample of the best graph according to the situation.

At this time, the display control unit 42D can mechanically learn the correlation between a specific situation (for example, a situation where a warning occurs) and a graph used by a highly skilled operator in that situation, and record the learning result in When the graph history DB determines that a specific situation has been accessed based on the process data, it automatically reads the graph related to the situation from the graph 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 variously modified without departing from the gist of the invention. For example, part of the constituent elements of one embodiment can be added to another embodiment within the scope of the general creative ability of those skilled in the art. Furthermore, 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 Reception Department (Reception Department) 42C: Graph Generation Department (Generation Department) 42D: Display control part 50:Display device A1: Select area (Area 1) B1: Display area (2nd area) C1: Display area (2nd area) S71: Data acquisition step (acquisition step) S72: Chart generation step (generation 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 structure of a factory to be monitored in the embodiment of the present invention. [Fig. 2] is a diagram showing the functional structure 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 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 is a diagram showing an example of a non-chronological graph screen displayed on the display device according to the embodiment of the present invention. [Fig. 6] is a diagram showing the physical structure 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 Reception Department (Reception Department)

42C: Graph Generation Department (Generation Department)

42D: Display control part

44:Memory department

44A:Chart setting DB

44B: Chart history DB

50:Display device

Claims (14)

A display device that displays the operating status of a factory, wherein a plurality of graphs indicating the operating status of the factory are displayed as options in a first area, and the operating status of the factory is displayed in the second area using the aforementioned graphs; in the display When a specific graph is selected from the plurality of graphs in the first area, the specific graph is displayed in the second area, and the parameters of the vertical axis or the horizontal axis can be selected for the displayed specific graph. A display device as claimed in claim 1, wherein the plurality of graphs represent a history of process data, and the history of the process data displays an operating status of the factory. A display device as claimed in claim 2, wherein the plurality of charts represent the common process data in different formats. A display device as claimed in claim 3, wherein the plurality of graphs include both a graph that displays the progression of the flow data in chronological order and a graph that displays the progression of the flow data in a non-chronological manner. A display method that displays the operating status of a factory. The display method includes: an option display step of displaying the plurality of graphs indicating the operating status of the factory in the first area as options; and The operation status display step is used to display any of the plurality of graphs in the aforementioned option display step to display the operation status of the aforementioned factory in the second area; in the aforementioned plurality of graphs in the first region, When a specific graph is selected, the specific graph is displayed in the second area, and the parameters of the vertical axis or the horizontal axis can be selected for the displayed specific graph. A control device that controls a display device that displays the operating status of a factory. The control device is provided with: an acquisition unit that acquires process data of the factory; and a generation unit that generates a display based on the process data acquired by the acquisition unit. A plurality of graphs of the operating status of the aforementioned factory; and a display control unit that causes the plurality of graphs to be displayed in the first area of the aforementioned display device as options, and uses the aforementioned graph to display the operating status of the aforementioned factory on the aforementioned display device. 2nd area: When a specific chart is selected from the plurality of charts displayed in the first area, the specific chart is displayed in the second area, and the vertical axis or vertical axis can be selected for the displayed specific chart. is the parameter of the horizontal axis. The control device of claim 6, wherein the display control unit stores the graph generated by the generation unit in the memory unit. The control device of claim 7, wherein the display control unit reads the chart stored in the memory unit and It is displayed in the said 2nd area of the said display device. A control method that controls a display device that displays the operating status of a factory. The control method includes: an obtaining step, which obtains the process data of the factory; and a generating step, which generates the process data based on the process data obtained in the obtaining step. A plurality of graphs showing the operating status of the aforementioned factory; a display control step, which causes the plurality of graphs to be displayed in the first area of the aforementioned display device as options, and displays the operating status of the aforementioned factory on the aforementioned display device using the aforementioned graphs the second area; and an acceptance step, which accepts the selection of a chart; when the selection of a specific chart among the plurality of charts displayed in the first area is accepted in the aforementioned acceptance step, in the aforementioned display control step The specific graph is used to display the operating status of the factory in the second area, and the vertical axis or horizontal axis parameters of the displayed specific graph can be selected. The control method of claim 9, wherein in the display control step, the graph generated in the generating step is stored in the memory unit. The control method of claim 10, wherein in the display control step, the graph stored in the memory 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 for controlling a display device that displays the operating status of a factory. The control method includes: The obtaining step is to obtain the process data of the aforementioned factory; the generating step is to generate the plurality of graphs indicating the operating status of the plant based on the aforementioned process data obtained in the aforementioned obtaining step; and the display control step is to make the aforementioned plurality of graphs A graph is displayed as an option in the first area of the display device, and the operating status of the factory is displayed in the second area of the display device using the graph; and an acceptance step is to accept the selection of the graph; in the acceptance step When accepting the selection of a specific graph among the plurality of graphs displayed in the first area, in the display control step, the operation status of the factory is displayed in the second area using the specific graph, and , the specific chart displayed above can select the parameters of the vertical axis or the horizontal axis. The computer program of claim 12, wherein in the display control step, the graph generated in the generating step is stored in the memory unit. The computer program of claim 13, wherein in the display control step, the graph stored in the memory unit is read and displayed in the second area of the display device.

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