WO2022080106A1

WO2022080106A1 - Display device, display method, control device, and computer program

Info

Publication number: WO2022080106A1
Application number: PCT/JP2021/034868
Authority: WO
Inventors: 正法門脇; 豊明渡; 建聖渡邊; 大也藤井; 七海青木
Original assignee: 住友重機械工業株式会社
Priority date: 2020-10-14
Filing date: 2021-09-22
Publication date: 2022-04-21
Also published as: TW202215178A; JPWO2022080106A1; TWI808504B; KR20230087458A

Abstract

[Problem] To provide a display device, a display method, a control device, and a computer program that make it possible even for inexperienced operators to easily add new guide information. [Solution] The invention is a display device comprising a display screen. A warning is issued by displaying a warning relating to the operation status of a plant on the display screen of the display device. The region for adding guide information displayed in such instances is displayed on the display screen.

Description

Display device, display method, control device and computer program

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

Conventionally, sensors have been installed in monitored equipment such as plants, and the operating status of the monitored equipment has been monitored based on the data acquired by the sensors. When an abnormality occurs in the monitored equipment, an alarm is issued and the guide information that describes the countermeasure policy is displayed to support the operator. Guide information is created by a skilled person spending a great deal of time scrutinizing various information based on his or her own knowledge and experience.

Further, in Patent Document 1, "recording operations performed in each operating state", "plant operation history storage unit" (paragraph [0038]), and "operation history are classified for each predetermined operating state, and operation is performed. A "plant monitoring device" that creates and displays "operation guide data" (paragraph [0040]), which is a recommended operation for each state, is described.

Japanese Unexamined Patent Publication No. 2014-32633

However, the guide information created based on the knowledge of experts, etc., must naturally have a high degree of personality. Therefore, an inexperienced operator cannot easily create similar guide information.

Further, the plant monitoring device described in Patent Document 1 merely displays recommended operations to be performed in routine work such as excluding the equipment under inspection from the monitoring target based on the past operation history. On the other hand, the countermeasure policy when an alarm is issued often does not involve plant operation. Therefore, it is difficult to create guide information at the time of alarm issuance based on the past operation history of the plant.

Further, the plant monitoring device described in Patent Document 1 discloses that "the operation guide selection pattern list" and "the operation guide pattern to be referred to is selected from" (paragraph [0047], FIG. 6). Since the pattern is only obtained from the past plant operation history, it does not allow the addition of new information.

Therefore, an object of the present invention is to provide a display device, a display method, a control device, and a computer program that enable an inexperienced operator to easily add new guide information.

The present disclosure is a display device including a display screen, which is configured to display an area for adding guide information displayed when a warning regarding a plant operation status is generated on the display screen. offer.

Further, the guide information is displayed in the first area of the display screen, and the area for adding the guide information is displayed in the second area juxtaposed with the first area of the display screen. You may.

Further, at least one word included in the information describing the past operation status of the plant may be displayed, and the information including the selected word may be displayed on the display screen.

Further, the word has a step of calculating the feature amount of at least one word based on the information describing the past operation status of the plant, and the importance of at least one word based on the feature amount of the word. The word is extracted by executing the step of calculating the above, and the word may be configured to be displayed on the display screen together with the importance of the word.

The present disclosure provides a display method including a step of displaying an area for adding guide information displayed when a warning regarding a plant operation status is generated on a display screen of a display device.

The present disclosure is a control device for controlling a display device provided with a display screen, and is configured to display an area for adding guide information displayed when a warning regarding a plant operation status occurs on the display screen. Also, a control device is provided.

The present disclosure causes a computer for controlling a display device including a display screen to execute a step of displaying an area for adding guide information displayed when a warning regarding a plant operation status occurs on the display screen. Provide a computer program.

FIG. 1 is a schematic view showing the overall configuration of the plant. FIG. 2 is a functional block diagram of the plant, DCS and operation support system. FIG. 3 is an example of guide information displayed on the display screen of the display device. FIG. 4 is a functional block diagram of the important word extraction unit. FIG. 5 is an example in which an excerpt list such as a driving diary and a free entry frame are displayed side by side. FIG. 6 is a diagram showing a physical configuration of the driving support system 30. FIG. 7 is a flowchart of a driving support method including a display method according to the present embodiment.

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

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

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

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

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

In the fireplace 2, a part of the circulating material called the in-fireplace bed material stays at the bottom. This bed material may contain a bed material having a coarse particle size unsuitable for circulating flow and exhaust combustion contaminants, and the bed material unsuitable for these circulating materials may cause flow failure. Therefore, in order to suppress flow failure, in the furnace 2, the bed material in the furnace is continuously or intermittently discharged to the outside from the discharge port 2d at the bottom. The discharged bed material is supplied to the furnace 2 again after removing unsuitable substances such as metal and coarse particle size on a circulation line (not shown), or is discarded as it is. The circulatory material of the circulatory furnace 2 circulates in the circulatory system including the circulatory furnace 2, the cyclone 3, and the circulatory material recovery pipe 4.

The rear flue 5 has a flow path for flowing the gas discharged from the cyclone 3 to the rear stage. The rear flue 5 has a superheater 10 for generating superheated steam and an economizer 12 for preheating the boiler water supply as an exhaust heat recovery unit for recovering the heat of the exhaust gas. The exhaust gas flowing through the rear flue 5 is heat-exchanged with the steam flowing through the superheater 10 and the economizer 12 and the boiler supply water to be cooled. Further, it has a steam drum 8 in which boiler water supply that has passed through the economizer 12 is stored, and the steam drum 8 is also connected to a furnace wall pipe 6.

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

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

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

The pressure and temperature of the steam discharged from the turbine 100 is lower than the pressure and temperature of the steam discharged from the superheater 10. Although not particularly limited, the pressure of the steam supplied to the turbine 100 is about 10 to 17 MPa, and the temperature is about 530 to 570 ° C. The pressure of the steam discharged from the turbine 100 is about 3 to 5 MPa, and the temperature is about 350 to 400 ° C.

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

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

The process data handled in this embodiment may be arbitrary data relating to the plant 1, but may be, for example, data obtained by measuring the state of the plant 1 with a sensor (an example of “process data”), and more specifically. May include measured values such as temperature, pressure and flow rate of plant 1. FIG. 1 shows a boiler supply water flow rate u2 (an example of “process data”) supplied from the pump 7 to the economizer 12. Further, FIG. 1 shows a boiler outlet steam flow rate u3 (an example of “process data”) supplied from the superheater 10 to the turbine 100, and a saturated steam flow rate u4 (“process”) supplied from the steam drum 8 to the superheater 10. An example of "data") is shown. The make-up water flow rate u1 may be controlled to follow the saturated steam flow rate u4. Further, it may be controlled to adjust the boiler supply water flow rate u2 while monitoring both the boiler outlet steam flow rate u3 (or 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 make-up water flow rate u1 increases, or the flow rate difference between the boiler supply water flow rate u2 and the boiler outlet steam flow rate u3 increases. The DCS (Distributed Control System, FIG. 2) 20 receives the process data of the plant 1 such as the make-up water flow rate u1, the boiler supply water flow rate u2, the boiler outlet steam flow rate u3, and the saturated steam flow rate u4 from the plant 1, and operates the plant 1. Monitor the situation and monitor the plant 1 for any abnormalities. As will be described later, the monitoring device 40 evaluates the process data based on the alarm determination logic set for each type of abnormality, and when it is determined that an abnormality has occurred, the monitoring device 50 causes the display device 50 to issue an alarm.

Although the make-up water flow rate u1, the boiler supply water flow rate u2, the boiler outlet steam flow rate u3, and the saturated steam flow rate u4 are exemplified as process data, the process data related to the plant 1 may be other data. The process data related to the plant 1 may be other data such as temperature and pressure, data calculated based on a plurality of process data, or data obtained from a sensor or the like that has not been calculated. You may.

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

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

The operation support system 30 includes an edge / cloud computing unit 32 that acquires process data from the DCS 20, and a monitoring device 40 that acquires process data from the edge / cloud computing unit 32 and monitors the plant 1 based on the process data. Also equipped with a display device 50 for displaying the operating status of the plant 1 for the operator. The monitoring device 40 (an example of a “control device”) also functions as a control device for controlling the display device 50. Specifically, the monitoring device 40 acquires process data, determines the presence or absence of an abnormality based on the process data, and if it is determined that an abnormality has occurred, an alarm is given to the display device 50 (an example of "warning"). To be notified. When issuing an alarm, the monitoring device 40 acquires information to be displayed when the alarm is issued, such as guide information (described later), from a database described later, and displays the information on the display screen of the display device 50.

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

The monitoring device 40 includes an alarm display control unit 42 and a storage unit 44.
The alarm display control unit 42 determines whether or not an alarm needs to be issued based on the process data acquisition unit 42A that acquires process data from the edge / cloud computing unit 32 and the process data acquired by the process data acquisition unit 42A. When the alarm judgment unit 42B and the alarm judgment unit 42B determine that it is necessary to issue an alarm, the alarm is issued and alarm-related information including guide information for guiding the response method when the alarm is issued is displayed. It includes an alarm information display unit 42C to be displayed on the device 50 and a standard guide setting unit 42D for setting standard guide information to be displayed on the display device 50.

Further, the alarm display control unit 42 is configured so that guide information can be added. Specifically, the important word extraction unit 42E for extracting important words (an example of "word") from the daily driving report DB44C, the importance of the extracted important words, and a part of the daily driving report including the important words. It is provided with a guide additional setting unit 42F for displaying on the display device 50 as a candidate for guide information to be added and for receiving input of additional guide information to be added to the standard guide information.

The storage unit 44 of the monitoring device includes an alarm information DB 44A, a guide information DB 44B, and a daily operation report DB 44C. First, each database of the storage unit 44 will be described.

The alarm information DB 44A has an alarm determination logic (judgment criterion) for determining whether or not an alarm indicating an abnormality in plant 1 has occurred, and alarm history information (alarm identification information and alarm identification information) issued in the past, based on process data. Information including the date and time when the alarm occurred) is stored. Specifically, the alarm determination logic is associated with the alarm identification information, the alarm classification information, and the evaluation item name of the process data related to the alarm, and is stored for each alarm. The alarm determination logic may define a criterion for determining whether the value of the process data exceeds the threshold based on the process data acquired from a single sensor, or may be a predetermined algorithm (machine learning). Acquired from multiple types of sensors according to (including those based on a predetermined trained model generated by, and mathematical or mathematical models derived by performing multivariate analysis etc. of process data of multiple sensors). It may specify the judgment criteria based on the processed process data.

The guide information DB 44B stores guide information for guiding the response method when an alarm is issued. The guide information includes the standard guide information preset by the standard guide setting unit 42D and the additional guide information added by the guide additional setting unit 42F.

For example, in the guide information DB 44B, a sentence explaining a method of capturing an event from a graph entitled "1. Monitoring point (how to read the graph)" for each alarm and a process data entitled "2. Response method" are provided. A sentence is recorded explaining how to optimize the condition of. The method for optimizing the state of the process data is, for example, a method for optimizing the state in which the process data of interest exceeds the threshold value and keeping it within the threshold value.

FIG. 3 shows an example of guide information displayed on the display screen of the display device 50 when the issued alarm is “circulatory system temperature difference 1”. In "1. Monitoring point (how to read the graph)", the definition of the temperature difference in the furnace and the calculation formula are described. With such an explanation, the operator can confirm how to capture the event from the graph, and it becomes easy to understand what kind of event is occurring. In "2. Countermeasures", items that the operator should check according to the magnitude of the temperature difference in the furnace are listed. With such an explanation, it becomes possible to confirm the method for optimizing the state of the process data. The guide information may include an image, a legend graph, and the like in addition to character information and mathematical formulas. Further, it may have a function of displaying the time when the same alarm was issued in the past.

The daily operation report DB44C stores information on the actual operating status of the plant 1. Information on the actual operating status of plant 1 is, for example, an operating diary (daily operating report) that records the results of an operator observing the operating status of the equipment in charge of plant 1 for the next operator to hand over. included. Daily operation reports may be created for each equipment such as boilers and turbines, or for the entire plant. In addition, the daily operation report is preferably prepared periodically (for example, at least once a day). The information regarding the actual operating status of the plant 1 may include a monthly operation report, maintenance information of the equipment in charge, inspection records, repair information, and failure history.

Next, each functional block of the alarm display control unit 42 will be described.
The process data acquisition unit 42A acquires process data from the edge / cloud computing unit 32.

The alarm determination unit 42B determines whether or not an abnormality has occurred in the plant 1 based on the process data, and if it is determined that an abnormality has occurred, causes the display device 50 to issue an alarm. Specifically, the alarm determination unit 42B reads the alarm determination logic (determination standard) recorded in the alarm information DB 44A, and evaluates the process data according to this alarm determination logic. For example, the alarm determination unit 42B evaluates predetermined process data based on the alarm determination logic, and blows (like a boiler tube leak, metal materials such as tubes and pipes constituting the boiler are damaged and puncture. , A state in which internal steam leaks to the outside. Including a state in which there is a high possibility that a blast will occur in the future. The same shall apply hereinafter). In this case, the display device 50 is made to issue an alarm. At the same time, the alarm determination unit 42B records in the alarm information DB 44A that an abnormality has occurred.

When the alarm information display unit 42C determines that the alarm determination unit 42B needs to issue an alarm, the alarm information display unit 42C causes the display device 50 to display information for the operator to confirm the suitability of the alarm. On the display screen of the display device 50, information on past and present alarms acquired from the alarm determination unit 42B is displayed in a list format. Further, when the operator double-clicks (selects) a predetermined alarm, the alarm information display unit 42C acquires the guide information corresponding to the selected alarm and displays it on the display screen.

The standard guide setting unit 42D is prepared in advance among the guide information corresponding to the alarm coping policy (including information that identifies the process data, etc. that the operator should check in order to determine the suitability of the alarm when the alarm is issued). Set the standard guide information, which is the set guide information. Standard guide information is typically versatile information that a skilled operator sets before the plant is up and running (or information that can be set up before the plant is up and running) based on his or her knowledge and experience. Is.

The important word extraction unit 42E extracts important words (an example of "word") from the daily driving report DB44C in order to assist the operator in setting additional guide information. The important word extraction unit 42E shown in the present embodiment extracts a plurality of words from a daily driving report or the like by using a known natural language processing method, and extracts important words by calculating the importance thereof. FIG. 4 shows a functional block diagram of the important word extraction unit 42E. As shown in the figure, the important word extraction unit 42E has an information extraction unit 42E1 that extracts words that can be important words from the daily driving report, and a feature amount that calculates statistical information of each word extracted by the information extraction unit 42E1. It includes a calculation unit 42E2 and an importance calculation unit 42E3 that calculates the importance of each word based on the statistical information of each word.

The information extraction unit 42E1 divides the daily driving report and other information, which is a natural language, into morphemes, performs morphological analysis to specify the morpheme whose part of speech is a word, and of the morphemes, unnecessary parts of speech and other parts of speech and important words. Perform unnecessary part-speech filtering and unnecessary word filtering to remove unnecessary words.

The feature amount calculation unit 42E2 calculates statistical information such as the number of appearances of words extracted by the information extraction unit 42E1. Specifically, the appearance frequency of each word (an example of a "feature amount"), the n-gram co-occurrence frequency (an example of a "feature amount"), and the frequency distribution (an example of a "feature amount") are calculated. The n-gram co-occurrence frequency is the co-occurrence frequency of N adjacent words.

The importance calculation unit 42E3 calculates information indicating the importance of each word based on the statistical information of each word calculated by the feature amount calculation unit 42E2. The importance calculation unit 42E3 calculates information indicating importance based on, for example, TF (Term Frequency), IDF (Inverse Document Frequency), TF-IDF, or at least one of the connection frequencies.

Here, TF (an example of "importance") divides the number of occurrences of a predetermined word contained in one document _j (or sentence _j ) by the total number of words contained in the document _j (or sentence _j ). It is a value calculated by this. IDF (an example of "importance") is a value calculated as a logarithmic value obtained by dividing the total number of documents (or the total number of sentences) by the number of documents (or the number of sentences) in which a predetermined word appears. TF indicates the frequency of occurrence of a predetermined word for each document (or sentence). IDF indicates a low value for words that are used across multiple documents (or sentences). TF-IDF is a value obtained by multiplying TF by IDF. Therefore, TF-IDF (an example of "importance") is an index showing a high value for a word that appears mainly in some documents (or sentences), not a word that is generally used across the board. For example, the importance calculation unit 42E3 extracts a word having a high TF-IDF value as an important word and displays it on the display device 50 together with the TF-IDF value (an example of “importance”). Equation 1 shows an example of an equation for calculating TF (tf _{i, j} ), IDF (idf _i ) and TF-IDF (tfidf).

The importance calculation unit 42E3 may calculate information indicating the importance of each word based on the connection frequency (an example of "importance"). For example, the connection frequency may be calculated based on the FLR method that counts the frequency at which one word and another word are used in a set, and the word having a high value may be extracted as an important word. Higher importance words (eg, "circulating particles") are often used in combination with other higher importance words (eg, "lower furnace temperature"), so it is important to use the connection frequency. It is also possible to extract words with a high degree. FIG. 4 shows an example of the important word list L1 which is an example of the important word extracted by the important word extraction unit 42E and its importance (score).

The guide additional setting unit 42F sets the additional guide information to be added to the standard guide information. The additional guide information is typically guide information based on information obtained by an operator observing the plant after the start of operation of the plant. Since the information is obtained by actually operating the plant, the additional guide information corresponds to the information reflecting the circumstances peculiar to the plant.

Therefore, while the standard guide information corresponds to the guide information that is likely to be applicable to other plants other than plant 1, the additional guide information may not be applicable to other plants other than plant 1. Is.

The guide additional setting unit 42F displays a free entry frame FL (an example of "area for adding guide information") for receiving additional guide information on the display screen of the display device 50. The guide additional setting unit 42F accepts the information input by the operator in this free entry frame as additional guide information and records it in the guide information DB 44B.

The guide additional setting unit 42F according to the present embodiment further displays standard guide information, important words, and their importance in different areas of the display screen of the display device 50 in order to assist the operator in inputting additional guide information. The list L1 (FIG. 4) showing the above is displayed.

In addition, when one of the important words is selected by the operator, the guide additional setting unit 42F accesses the daily driving report DB44C, reads a part of the daily driving report including the selected important word, and displays the display device 50. Display in different areas of the screen.

Therefore, when the operator inputs the additional guide information, the guide addition setting unit 42F displays the standard guide information (FIG. 3) corresponding to the guide information before the addition, and the list L1 (FIG. 4) showing the important words and their importance. And, the excerpt part such as the driving diary including the selected important word and the free entry frame can be displayed at the same time.

It is preferable that the standard guide information (Fig. 3) and the free entry frame can be displayed side by side (that is, arranged so as to be at the same position in the vertical or horizontal direction of the display screen). For example, the standard guide information may be displayed in the area on the left side of the display screen (an example of the "first area"), and the free entry frame may be displayed in the area on the right side of the display screen (an example of the "second area"). By displaying in this way, it is possible to input content that does not contradict the standard guide information as additional guide information while confirming the standard guide information.

Further, when a different important word in the list L1 is selected by the operator, the guide additional setting unit 42F accesses the daily driving report DB44C, reads and displays a part of the daily driving report including the newly selected important word. Display in different areas of the display screen of the device 50. By displaying in this way, it is possible to input additional guide information while referring to daily driving reports and the like relating to a plurality of important words.

In FIG. 5, when the operator selects the important word "circulating particles", a list L2 of excerpts such as an operation diary including "circulating particles" and a free entry frame FL (guide entry column) are displayed on the display device. An example of juxtaposition on the display screens of 50 is shown. As shown in the figure, the guide additional setting unit 42F may highlight the selected important word.

As shown in the figure, the guide addition setting unit 42F may create a list L2 so as to extract sentences including important words for a plurality of dates and times from a driving diary or the like. By excerpting sentences containing important words for multiple dates and times, it becomes possible to efficiently find related sentences.

Further, the guide addition setting unit 42F may create a list L2 so that sentences that contribute to the importance (for example, sentences with a large TF) are displayed at a higher level.

Further, the guide additional setting unit 42F accesses the alarm information DB 44A and creates a list L2 so as to display the sentences and the like created on the day (or before and after) the alarm corresponding to the additional guide information at the upper level. You may. The display device according to this aspect displays an area on the display screen for adding guide information displayed when a warning regarding the operation status of the plant is generated, and at the same time, the past when a warning of the same (or the same category) as this warning is generated. Information on the operating status of the plant is displayed at the same time.

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

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

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

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

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

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

The input unit 30E accepts data input and the like (including selection of important words and input of additional guide information in the present disclosure) from the operator, and may include, for example, a mouse, a keyboard, and a touch panel.

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

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

[Display method]
Hereinafter, a series of driving support methods including a display method for creating guide information displayed when an alarm is issued to an operator using the driving support system 30 will be described. FIG. 7 is a flowchart including such a display method.

First, standard guide information is created. Based on the standard guide setting unit 42D of the driving support system 30, a skilled operator should check the countermeasure policy (process data, etc. that the operator should check in order to judge the suitability of the alarm when the alarm is issued) for each alarm. Enter standard guide information that summarizes (including information that identifies). The standard guide information is typically highly versatile guide information created in advance before the start of operation of plant 1, and may include information that can be used for other plants of the same type. The input standard guide information is registered in the guide information DB 44B.

After that, the operation of plant 1 is started. The operator records an operation diary every day based on the actual operation status of the plant 1. The daily operation report DB44C stores and stores the operation diary. Further, the alarm determination unit 42B evaluates the predetermined process data based on the alarm determination logic, and determines whether or not an abnormality has occurred. When it is determined that an abnormality has occurred, the monitoring device 40 causes the display device 50 to issue an alarm and display guide information. The guide information displayed at this time corresponds to the standard guide information set in advance. The operator responds to the alarm based on standard guide information.

After a sufficient period of time, the operator will start setting additional guide information for the specified alarm. First, the important word extraction unit 42E accesses the daily operation report DB44C and acquires information on the actual operation status such as the operation diary (step S71).

Next, the important word extraction unit 42E extracts important words based on the acquired information (step S72). On the display screen of the display device 50, a list of important words and importance, guide information at the present time, and a free entry frame FL are displayed. The guide information and the free entry frame FL are displayed side by side in the horizontal direction of the display screen, for example.

The important word extraction unit 42E may be configured so that the important words to be extracted differ depending on the content of the alarm. For example, the importance calculation unit 42E3 may be configured to calculate the importance of a predetermined word so that the importance of the predetermined word becomes higher in advance for the predetermined alarm. Further, the information extraction unit 42E1 may be configured to filter words having low relevance to the alarm and exclude them from important words according to the content of the alarm.

The operator confirms the important word and the list of importance (step S73), and selects the important word with reference to the importance (score) (step S74). When one of the important words is selected by the operator, the guide additional setting unit 42F accesses the daily driving report DB44C, reads a part of the daily driving report including the selected important word, and displays the display screen of the display device 50. Display in different areas. At this time, by displaying a plurality of candidates including sentences including important words, it is possible to efficiently find information suitable for additional guide information.

The operator determines whether or not there is information to be added to the guide information while checking the guide information and excerpts of the daily driving report (step S75).

When it is determined that there is information to be added to the guide information (YES), the operator inputs the additional guide information to be added to the free entry frame FL based on the excerpt of the daily driving report or the like (step S77). .. The guide additional setting unit 42F accepts the information input by the operator in the free entry frame FL as additional guide information and records it in the guide information DB 44B. After that, when the alarm is issued, the guide information including the additional guide information is displayed on the display screen of the display device 50.

Here, the additional guide information may be information based on the difference in the specifications of the equipment of the plant. The specifications of the equipment of the plant differ depending on the scale of power generation of the plant, etc., but the standard guide information may describe only the countermeasures applicable to boilers in general without considering such differences in the specifications of the equipment. .. For example, a boiler, which is one of the equipment of a plant, has different regulation values for sulfur oxides (SOx) and nitrogen oxides (NOx) depending on the specifications. According to this, some boilers have a denitration device and a desulfurization device, and some do not. Also, different boilers may require different temperatures and pressures. Focusing on this point, the inventors of this application reflected the circumstances peculiar to the plant, such as the difference in the specifications of the equipment of the plant, by making it possible to add the guide information instead of fixing the guide information. I came up with the idea of creating guide information.

Furthermore, it focuses on information created and accumulated for different purposes such as operation diary, and when adding guide information, it is configured to access information on the actual operating status of these plants and display them at the same time. bottom. Therefore, the load of creating guide information can be reduced, and even an inexperienced operator can easily add new guide information in consideration of the circumstances peculiar to the plant.

In addition, instead of simply displaying information about the actual operating status of the plant, the information that is of high importance is narrowed down and configured to be viewed by guide creators such as operators, further reducing the load of creating guide information. It will be possible to do.

Further, the present invention can be modified in various ways as long as it does not deviate from the gist thereof. For example, a machine learning method may be used for extracting important words and calculating the importance. At that time, teacher data may be created in which the reward is actually added to the additional guide information. Further, the identification information of the operator who created the driving diary may be used as one factor. Machine learning models include those using neural networks such as convolutional neural networks (CNN), those using regression models such as Gaussian process regression, and those using tree algorithms such as decision trees. It is also possible to use the edge / cloud computing unit 32 when collecting information for machine learning. In addition, some components in one embodiment may be added to other embodiments within the normal creative abilities of those skilled in the art. Also, some components in one embodiment can be replaced with corresponding components in another embodiment.

1 Plant 2a Fuel supply port 2b Gas outlet 2c Air supply line 2d Discharge port 3 Cyclone 3a Exhaust gas flow path 4 Circulating material recovery pipe 4a Loop seal part 5 Rear flue 6 Furnace wall pipe 7 Pump 30 Operation support system

30D Communication part

30E Input Unit

30F Display unit 32 Cloud computing unit 40 Monitoring device 42 Alarm display control unit 42A Process data acquisition unit 42B Alarm judgment unit 42C Alarm information display unit 42D Standard guide setting unit 42E Important word extraction unit 42F Guide additional setting unit 44 Storage unit 50 Display 100 Turbine 102 Condenser

Claims

A display device equipped with a display screen
An area for adding guide information to be displayed when a warning regarding the operation status of the plant is generated is configured to be displayed on the display screen.
Display device.
The guide information is displayed in the first area of the display screen, and the guide information is displayed.
The area for adding the guide information is configured to be displayed in the second area juxtaposed with the first area of the display screen.
The display device according to claim 1.
Display at least one word contained in the information describing the past operating status of the plant.
The information including the selected word is configured to be displayed on the display screen.
The display device according to claim 1 or 2.
The word is
A step of calculating the feature amount of at least one word based on the information describing the past operation status of the plant, and
It is extracted by executing the step of calculating the importance of at least one word based on the feature amount of the word.
The word is configured to be displayed on the display screen together with the importance of the word.
The display device according to claim 3.
Including the step of displaying the area for adding the guide information displayed when the warning regarding the operation status of the plant is generated on the display screen of the display device.
Display method.
A control device that controls a display device equipped with a display screen.
The display screen is configured to display an area for adding guide information displayed when a warning regarding the operation status of the plant is generated.
Control device.
A computer for controlling a display device equipped with a display screen,
To execute the step of displaying the area for adding the guide information displayed when the warning regarding the operation status of the plant is generated on the display screen.
Computer program.