WO2017216830A1 - Data analysis system - Google Patents

Data analysis system Download PDF

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Publication number
WO2017216830A1
WO2017216830A1 PCT/JP2016/067486 JP2016067486W WO2017216830A1 WO 2017216830 A1 WO2017216830 A1 WO 2017216830A1 JP 2016067486 W JP2016067486 W JP 2016067486W WO 2017216830 A1 WO2017216830 A1 WO 2017216830A1
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WIPO (PCT)
Prior art keywords
data
analysis
plant
analysis device
recording
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PCT/JP2016/067486
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French (fr)
Japanese (ja)
Inventor
岡本　浩次郎
清水　勝人
亘 笹木
鈴木　洋之
正博 村上
Original Assignee
株式会社日立製作所
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2016/067486 priority Critical patent/WO2017216830A1/en
Priority to JP2018523044A priority patent/JP6640348B2/en
Publication of WO2017216830A1 publication Critical patent/WO2017216830A1/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring

Definitions

  • the present invention relates to a data analysis system.
  • industrial plants in the fields of electric power, steel, water and sewage, petroleum, chemicals, etc. are connected and connected to each facility with piping etc. in order to realize the designed plant process operation, and are adjusted and controlled under necessary conditions. .
  • input the physical state such as temperature, pressure, flow rate, etc. in each facility, add appropriate calculations to this physical state, and then output it to controlled devices such as valves, heaters, fans, and motors. It is executed by giving.
  • Measured monitoring control devices that perform such calculations capture measurement signals (measurement items) at regular intervals from sensors provided in each facility.
  • This measurement monitoring control device is connected to a maintenance device having an adjustment function of plant monitoring control such as control / protection logic, parameter creation, parameter management and the like.
  • the time series data of measurement items is stored in the maintenance device, but the time series data of measurement items may be stored in a data recording device connected to the maintenance device.
  • the measurement monitoring control device is an analysis device that performs analysis processing for identifying the cause of failure of the control target device using analysis signal data indicating the state of the device, analysis processing for detecting a failure sign, etc. It may be connected to.
  • Patent Document 1 discloses a method of generating key information as analysis data for analyzing a past plant state based on history data and sharing information in the plant via this key information. .
  • the usages of the maintenance device, the data recording device, and the analysis device are different from each other, and the users of each device and the requirements for each device to use data are also different for each device.
  • the maintenance device operations such as plant operation adjustment by the plant operator, operation check of the control program by the control program coordinator, and identification of an equipment failure location are performed. Since these operations are performed during normal operation of the plant and during trial operation of the plant, it is necessary to display data output from the plant on the display unit or to perform quick operations for searching for data.
  • the data recording device is required to correctly record data output from the plant in time series.
  • the maintenance manager of the control target device performs data collation, processing, analysis, etc. to identify the cause of the device failure or detect the failure sign. Ease of processing is required.
  • Patent Document 1 the plant analysis system disclosed in Patent Document 1 is not related to the operation of each device constituting the system. For this reason, for example, even when the user of the maintenance device and the user of the analysis device use the same data, the user of each device has to make individual settings for each device.
  • the present invention has been made in view of such a situation, and an object thereof is to reduce work required for data analysis processing.
  • the data analysis system adds a control device to control and control logic of the control target equipment constituting the plant and a maintenance device that manages parameter creation and management, and additional information used for data search by the analysis device.
  • a data recording device for storing data recording items indicating the operation state of the device; and an analysis device for analyzing data read from the data recording device according to a predetermined purpose.
  • the maintenance device or the data recording device uses the predetermined user interface set for each device to select and set the recording items stored in the analysis device in the analysis device.
  • the analysis device stores the data extracted from the data recording device in the recording items selected and set by the maintenance device or the data recording device, and performs a predetermined analysis process.
  • the analysis device can perform a predetermined analysis process using the data stored in the recording item selected and set by the maintenance device or the data recording device.
  • the setting work for can be reduced. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.
  • FIG. 1 is a block diagram illustrating an example of the overall configuration of the data analysis system 1.
  • the data analysis system 1 includes a maintenance device 2, a measurement monitoring control device 3, a process chart creation management device 4, an operation monitoring terminal 5, a data recording device 6, and an analysis device 7.
  • the maintenance device 2, the measurement monitoring control device 3, the process chart creation management device 4, the data recording device 6 and the analysis device 7 are connected to the measurement monitoring network N and can communicate data with each other.
  • the operation monitoring terminal 5 is connected to the measurement monitoring control device 3.
  • the data analysis system 1 performs an analysis process on data output from a power plant (hereinafter referred to as “plant”).
  • plant power plant
  • the data analysis system 1 can also be used as a plant control system for controlling the operation of the plant.
  • the maintenance device 2 is used online by, for example, maintenance personnel and adjustment workers (also called users), and manages the control logic 21 (an example of control protection logic). Based on the control logic 21, the measurement monitoring control device 3 controls the operation of the control target equipment 9 (for example, plant equipment, plant equipment) constituting the plant.
  • the maintenance device 2 can transmit the operation performed by the user to the control target device 9 in real time through the control logic 21 and can immediately display the execution result of the control logic 21 on the display unit C5 (see FIG. 2 described later). Display responsiveness is required.
  • the maintenance device 2 constructs a control logic 21 that regulates the operation of the plant including the control target device 9 provided with the sensor group 8.
  • the control logic 21 is created by the maintenance device 2 based on the measurement signal measured by the sensor group 8.
  • the created control logic 21 is executed by the measurement monitoring control device 3.
  • the operation of the plant is controlled based on the control logic 21.
  • the program executed by the maintenance device 2 creates plant control / protection logic, parameters used for plant control, manages parameters, and the like. Further, the maintenance device 2 can acquire plant state information for a specific signal identifier from the analysis device 7.
  • the measurement monitoring control device 3 directly acquires the measurement signal output by the sensor group 8 measuring and outputting the control target device 9, and monitors and controls the operation of the plant.
  • the value of this measurement signal is captured as a measurement item by the data recording device 6.
  • the output value to the plant monitored, controlled and protected by the measurement monitoring control device 3 is obtained from the control logic 21.
  • the process table creation management apparatus 4 includes a schedule process table 41 (see FIG. 8 to be described later) for storing work schedules such as tests and constructions for the maintenance apparatus 2 to perform trial operation and periodic inspection of the plant, A result process table 42 (see FIG. 8 described later) for storing work results is created.
  • the sensor group 8 is a generic term for various sensors attached to the control target device 9.
  • the sensor group 8 includes other measurement monitoring and control devices such as a sensor and a one-loop instrument that generate signals for the measurement monitoring and control device 3 to perform calculations necessary for monitoring, controlling, and protecting the plant. included.
  • the sensor group 8 outputs, for example, a sensor value obtained by measuring a physical state such as temperature, pressure, and flow rate of the control target device 9 as a measurement signal to the measurement monitoring control device 3.
  • the data recording device 6 acquires measurement signal data (hereinafter referred to as “recorded data”) collected from the sensor group 8 by the measurement monitoring control device 3 through the measurement monitoring network N.
  • This recorded data includes information related to plant operation monitoring and operation results (for example, turbine pressure, turbine speed, turbine temperature, etc.). Then, the data recording device 6 adds additional information used by the analysis device 7 for searching the recorded data, and stores the recorded data indicating the operation state of the control target device 9 in the recorded item 61.
  • the recording data acquired by the data recording device 6 is stored in the recording items 61 and accumulated in the recording device database 60 provided in the data recording device 6.
  • recording data including attribute information such as a signal identifier, a time series value of a logic operation value, and a time of acquisition of the logic operation value is accumulated in the recording device database 60. Is done.
  • the maintenance device 2 or the data recording device 6 can select and set the recording item 71 stored in the analysis device 7 in the analysis device 7 using a user interface prepared in advance for each device. is there.
  • the analysis device 7 performs analysis processing of recorded data read from the data recording device 6 in accordance with a predetermined purpose, and is used offline by a maintenance manager of the control target device 9, for example. For this reason, the analysis device 7 needs to be able to easily process the recorded data used for the analysis.
  • the result of the analysis processing is displayed on, for example, a display unit C5 (see FIG. 2 described later) provided in the analysis device 7.
  • the analysis device 7 includes an analysis device database 70 for storing specific recorded data.
  • the analysis device 7 selects recorded data to be used for analysis from the recording device database 60 through the measurement monitoring network N, and accumulates the recorded data in the analyzing device database 70.
  • the analysis device database 70 also includes a recording item 71 having the same configuration as the recording item 61 of the recording device database 60. In the analysis device database 70, not only the user of the analysis device 7 sets the recording item 71, but also the user of the data recording device 6 or the maintenance device 2 can set the recording item 71.
  • the analysis device 7 can also register the recording data extracted from the data recording device 6 in the recording item 71 set by the data recording device 6 or the maintenance device 2.
  • the analysis device 7 stores the recorded data extracted from the data recording device 6 in the recording item 71 selected and set by the maintenance device 2 or the data recording device 6 and performs a predetermined analysis process. For example, the analysis device 7 accumulates recording data as history data at the time of normal plant operation in the recording item 71, and uses the stored recording data to perform analysis processing for identifying the cause of failure of the control target device 9, Perform analysis processing to detect signs. At this time, the analysis device 7 searches the recording device database 60 using the plant state information as a key, and stores the acquired recording data to be analyzed in the analysis device database 70.
  • recorded data of the plant state that is the same as or similar to the plant state when the failure has occurred in the past is retrieved from the analysis device database 70 and acquired.
  • the analysis device 7 uses the recorded data for the analysis processing, as shown in FIG. 10 to be described later, the sample data is retrieved from the analysis device database 70 and comparison sample data is created from the acquired past recorded data. Comparison sample data can be compared. Further, in the analysis process for detecting a failure sign of the control target device 9, the recording data stored in the analysis device database 70 during normal operation of the plant and the recording device database for the analysis device 7 to detect the failure sign. It becomes possible to compare with the data acquired from 60.
  • the functions of the maintenance device 2, the data recording device 6, and the analysis device 7 may be realized by individual devices, or two or more functions may be realized by one device.
  • the maintenance device 2, the measurement monitoring control device 3, the process chart creation management device 4, the data recording device 6, and the analysis device 7 may be the same or different for each device.
  • the operation monitoring terminal 5 performs operation monitoring of the plant including the control target device 9 through the measurement monitoring control device 3.
  • the operation monitoring terminal 5 warns of the occurrence of the failure that occurred in the control target device 9, as shown in FIG. 9 described later, and information on the control target device 9 in which the failure occurred.
  • the analysis device 7 accumulates the information received from the operation monitoring terminal 5 in the analysis device database 70, and the failure cause of the failure that occurred in the past is the same as or similar to the failure that was alarmed by the operation monitoring terminal 5. It can be identified from the cause information.
  • the recorded data recorded in the recording device database 60 of the data recording device 6 will be described.
  • the recording items 61 stored in the recording device database 60 include, for example, the logic operation values of the control logic 21 in addition to the measurement items A and B.
  • the measurement item A is composed of recorded data 62.
  • the recorded data 62 corresponding to the measurement item A includes additional information in addition to the signal identifier, time series value, acquisition time, attribute a, attribute b, and attribute c.
  • a signal identifier is information used in order to identify the recording item of the test implemented with respect to a plant, for example.
  • the time series value is a value at the acquisition time of the measurement item A.
  • the acquisition time is the time when the measurement monitoring control device 3 acquires the measurement item A from the sensor group 8.
  • the attribute is detailed information of the measurement item A.
  • the additional information is a part of attribute information provided along with the measurement item A.
  • the additional information includes, for example, (1) information representing work in the plant such as test (test), construction, and curing, and (2) information representing the type of stop state such as partial stop of the facility and full stop. . Further, the additional information includes, for example, (3) information indicating the type of operation state such as limited operation due to production volume, output limitation, partial load operation, in-house single operation, etc., (4) replacement of turbine blades, soot blower Information indicating the type of equipment maintenance such as cleaning the heat transfer surface is included. Further, the additional information includes, for example, (5) information indicating a start mode such as cold start or hot start of the plant, and (6) information indicating an abnormal state of the plant or device such as a device failure or a runback operation. It is.
  • the additional information includes a plant state information storage unit, a failure cause information storage unit, and a related signal information storage unit.
  • the plant status information storage unit stores plant status information indicating plant status such as plant events or status, such as tests, construction work, partial shutdown of equipment, and limited operation such as production / output limits. Is done.
  • the plant state information is used by the data recording device 6 to search and acquire target recording data from the recording data stored in the recording device database 60 as a key. Then, by including the plant state information in the additional information, it becomes possible to identify different recording items for each plant state.
  • the failure cause information storage unit stores failure cause information indicating a failure cause of a failure that has occurred in the past in the control target device 9 such as a measurement item or device that has occurred in the plant and caused the failure in the past.
  • the failure cause information is information obtained by storing the measurement item or device information causing the failure in the failure cause information storage unit for each failure.
  • the related signal information storage unit in the planning documents such as the piping system diagram and the control system diagram to which the measurement item and the logic operation value belong, the related signals of the plurality of control target devices 9 such as the measurement item and the logic operation value are related to each other.
  • the related signal information to be represented is stored. Since the measurement item is related to the piping system and the control system as the related signal information, the maintenance device 2 and the analysis device 7 can read the recording data related to the measurement item and the logic operation value from the data recording device 6. .
  • a recording item 71 having the same configuration as the recording item 61 stored in the recording device database 60 is configured in the analysis device database 70 of the analysis device 7. For this reason, the plant state information is searched and acquired from the recorded data stored in the analysis device database 70 by using the analysis device 7 as a key.
  • the recorded data is the same plant state as the plant state at the time when the recorded data to be analyzed is stored. Used to do.
  • the analysis device 7 uses the recording data acquired from the data recording device 6 for failure sign analysis, the analysis device 7 searches the analysis device database 70 and uses the acquired past recording data as comparison sample data (described later). (See FIG. 10).
  • the failure cause information is used by the analysis device 7 as a key to search and acquire the cause of the failure that has occurred in the past from the recorded data stored in the analysis device database 70.
  • the analysis device 7 performs the cause identification analysis of the failure, it is possible to search and acquire the cause of the failure that has occurred in the past from the analysis device database 70.
  • the maintenance device 2 can also acquire information included in the recording item 71 from the analysis device 7 or information included in the recording item 61 from the data recording device 6. As shown in FIG. 1, the maintenance device 2 does not include a database. However, as with other devices, the maintenance device 2 may include a maintenance device database, and the recording items may be configured in the maintenance device database. In the following description, when the recording items 61 and 71 are not distinguished, they are described as “recording items”.
  • FIG. 2 is a block diagram illustrating a hardware configuration example of the computer C.
  • the computer C is hardware used as a so-called computer.
  • the computer C includes a CPU (Central Processing Unit) C1, a ROM (Read Only Memory) C2, and a RAM (Random Access Memory) C3 respectively connected to the bus C4. Further, the computer C includes a display unit C5, an operation unit C6, a nonvolatile storage C7, and a network interface C8.
  • CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the CPU C1 reads out the program code of software that realizes each function according to the present embodiment from the ROMC2, and executes it.
  • the RAM C3 variables, parameters, and the like generated during the arithmetic processing are temporarily written.
  • the display unit C5 is, for example, a liquid crystal display monitor, and displays a result of processing performed by the computer C to the user.
  • a keyboard, a mouse, or the like is used for the operation unit C6, and a user can perform predetermined operation inputs and instructions.
  • a user of the maintenance device 2, the data recording device 6, and the analysis device 7 displays a screen based on a predetermined user interface set for each device on the display unit C5, and receives an operation input from each user through the operation unit C6. .
  • nonvolatile storage C7 for example, a hard disk drive (HDD), a solid state drive (SSD), a flexible disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory, or the like is used. It is done.
  • OS Operating System
  • a program for causing the computer C to function is recorded in the nonvolatile storage C7.
  • the recording device database 60 and the analysis device database 70 are configured in the nonvolatile storage C7.
  • the maintenance device 2 may configure the recording items in the nonvolatile storage C7.
  • the network interface C8 for example, a NIC (Network Interface Card) or the like is used. Each device can transmit and receive various data via the network interface C8 via the measurement monitoring network N, a dedicated transmission line, and the like.
  • FIG. 3 is an explanatory diagram showing a first configuration example of recorded items.
  • the maintenance device 2, the data recording device 6, and the analysis device 7 have each recorded item that can register plant state information at each acquisition time of the plant state information.
  • the plant state information storage unit of the measurement item A the fact that the plant state information is the test A is stored in the recorded item for each time series value acquisition time.
  • FIG. 4 is an explanatory diagram showing a second configuration example of recorded items. Also in the second configuration example of the recording items, the maintenance device 2, the data recording device 6, and the analysis device 7 have respective recording items that can register the plant state information at each acquisition time of the plant state information. However, in FIG. 4, as shown in the measurement items A to C, logic operation values of a plurality of measurement items are stored as time series values. For this reason, test A is not stored for each measurement item as shown in FIG. 3, but the plant state information of a plurality of measurement items in the time zone in which test A is performed is collectively recorded as test A. Stored.
  • the maintenance device 2, the data recording device 6, and the analysis device 7 hold plant state information for each unit of plant state information.
  • the maintenance device 2, the data recording device 6, and the analysis device 7 include time zone information indicating a time zone in which the test A occurs, and a signal identifier group used for the test A Are collected and recorded.
  • the recorded items may contain plant state information at the time when plant maintenance or the like occurs.
  • the value of the measurement signal obtained from the boiler may change before and after cleaning the boiler. That is, the efficiency of the boiler is low before the boiler is cleaned, but the efficiency of the boiler is increased after the boiler is cleaned.
  • the recording data before cleaning of the boiler and the recording data after cleaning are not continuous, and the recording data extending before and after cleaning cannot be used as an analysis target.
  • the recorded items include information indicating that the collected data collection conditions related to plant equipment maintenance have changed before and after the occurrence of equipment maintenance.
  • a method for registering plant state information in the recording items of the analysis device 7 For example, a method in which the user of the maintenance device 2 manually inputs and registers the recording items of the analysis device 7, and the analysis device 7 automatically reads the plant state information from other devices that record the plant state information. There is a method of registering the recorded items. Further, there is a method in which the analysis device 7 automatically reads already registered information (for example, a signal identifier) and registers it in a recording item.
  • already registered information for example, a signal identifier
  • FIG. 5 is an explanatory diagram illustrating an example of a process in which the maintenance device 2 acquires plant state information from the analysis device 7 using already registered information.
  • the recorded items of test A when the maintenance device 2 has performed the test A on the plant in the past are registered in the analysis device database 70.
  • the recorded items of test A are registered in the analysis device database 70 by a method in which a user of the maintenance device 2 manually inputs recorded data or a method in which the maintenance device 2 automatically reads information recorded by other devices. ing.
  • the analysis device database 70 shown in FIG. 5 shows a table with signal identifiers as columns and signal acquisition times as rows. From this table, for example, between 11:00 and 12:00, signal identifiers ID-A, ID-B, ID-C, ID-D (hereinafter abbreviated as “signal identifiers ID-A to ID-D”). It is indicated that the plant state of the plant that outputs the specific signal identified in (1) is test A.
  • the user of the maintenance device 2 uses ID-A to ID- including the test A as plant state information as a signal identifier of a signal output from the plant used for the test A.
  • D combination information is registered in the maintenance device 2 in advance.
  • the maintenance device 2 transmits the combination information of the signal identifiers to the plant state search unit 72 of the analysis device 7.
  • the signal identifier combination information includes, for example, signal identifiers ID-A to ID-D.
  • the signal identifier combination information may be individually registered by the user of the maintenance device 2 for each recording item, or may be registered together as signal identifiers ID-A to ID-D registered in advance as a group.
  • the analysis device 7 receives the signal identifier combination information from the maintenance device 2. Then, the plant state search unit 72 included in the analysis device 7 obtains plant state information common to the signal identifiers ID-A to ID-D from the analysis device database 70 at the same time based on the combination information of the signal identifiers. Search for. As illustrated in FIG. 5, the plant state search unit 72 acquires “test A” as plant state information.
  • the analysis device 7 transmits “test A” acquired by the plant state search unit 72 to the maintenance device 2.
  • the maintenance apparatus 2 can acquire “test A” as the plant state information corresponding to the signal identifiers ID-A to ID-D.
  • the form in which the analysis device 7 records the failure cause information in the analysis device database 70 and the registration method may be the same as the form in which the maintenance device 2 records the plant state information and the registration method, respectively.
  • the form in which the analysis apparatus 7 records the related signal information in the analysis apparatus database 70 may be a form in which the related signal information is stored for each recording item 71 as an attribute that can be registered.
  • the method in which the analysis device 7 registers the related signal information in the analysis device database 70 may be the same as the method in which the maintenance device 2 registers the plant state information.
  • FIG. 6 is an explanatory diagram illustrating an example of processing in which a user of the analysis device 7 selects a signal necessary for analysis and registers it as recorded data in the analysis device database 70.
  • the user of the analysis device 7 In order for the user of the analysis device 7 to register the recording items held by the maintenance device 2 or the data recording device 6 in the analysis device database 70, the measurement items and logic operation values on the control logic 21 are registered. It is necessary to know whereabouts. Conventionally, when the user of the analysis device 7 registers a signal in a recording item, the user checks the signal identifier recorded in the recording item by the maintenance device 2 or the signal identifier common to the maintenance device 2 and the analysis device 7. The signal identifier was input by operating the analysis device 7.
  • a user of the analysis device 7 can obtain a signal necessary for analyzing recorded data from the control logic 21 managed by the maintenance device 2, for example.
  • a location can be selected.
  • the control logic 21 includes an input / output list 22, an operation block output terminal 23, a logic sheet connection terminal 24, and the like.
  • the signal at the location selected by the user of the analysis device 7 is transmitted through the measurement / monitoring network N shown in FIG. 1 or a transmission line (not shown) directly connecting the maintenance device 2 and the analysis device 7. Are registered in the recording item 71.
  • the user of the analysis device 7 can use the user interface prepared in advance for the analysis device 7 that is familiar to him / her, it becomes easy to register the recording items of the data recording device 6 in the analysis device database 70. For this reason, the user of the analysis device 7 can divert the recording items set by the worker of the maintenance device 2 to the analysis.
  • maintenance personnel and adjustment workers of a plant that uses the maintenance device 2 have registered recording items in the maintenance device 2 or the data recording device 6 in order to adjust plant trial operation, check operation of the control program, and the like.
  • the plant trial operation was performed after the installation of the control target device 9.
  • a threshold set for a measured value or a calculated value, a device activation state or a stop state, or a device activation timing or a stop timing are used.
  • the conventional maintenance worker and the adjustment worker discarded the recorded data registered in the maintenance device 2 or the data recording device 6 after the plant trial operation was completed.
  • the analysis device 7 when plant maintenance personnel or adjustment workers perform plant test operations or perform plant maintenance, various plant states occur in the plant. For this reason, the analysis device 7 according to the present embodiment also saves the recorded data of the recorded items registered in the maintenance device 2 by the plant maintenance personnel and the adjustment workers in the analysis device database 70. As a result, it is considered that the analysis device 7 can collect a wider variety of recorded data than the recording device database 60 and use the collected recorded data for various analyses.
  • FIG. 7 is an explanatory diagram illustrating an example in which the analysis device 7 acquires a failure cause by using the failure sign analysis target data.
  • the failure sign analysis target data 73 which is the target of the device failure sign analysis process by the analysis device 7, is composed of a plurality of recorded data collected in the time zone to be analyzed.
  • the failure sign analysis target data 73 is a part of recorded data stored in the analysis device database 70, and currently includes recorded data A acquired by the analysis device 7 from the data recording device 6.
  • the plant state of the recorded data A is “heat soak”.
  • the analysis device 7 needs the recorded data of the past date and time in the same plant state as the date and time when the recorded data is stored in the analysis device database 70 in performing the analysis process for detecting the failure sign. Become.
  • the plant state search unit 72 reads the event or state of the plant stored in the plant state information storage unit included in the recorded data to be analyzed from the failure sign analysis target data 73. Then, the plant state search unit 72 searches past recorded data in which the plant state is “heat soak” from the analysis device database 70 by using the character string “heat soak” of the read plant state information. Then, the plant state search unit 72 provides the recorded data of “heat soak” extracted from the analysis device database 70 to the user of the analysis device 7. Thereby, the user of the analysis apparatus 7 can grasp the date and time when “heat soak” has occurred in the past.
  • recorded data at the time of plant trial operation and operation check test is stored in the analysis device database 70.
  • the analysis device 7 compares the recorded data stored in the analysis device database 70 with the recorded data acquired in the same trial operation or operation check test that is scheduled to be performed in the future, and the analysis device 7 is controlled. It can be used for analysis processing when a failure sign of the device 9 is detected.
  • the user of the analysis device 7 investigates the time zone that matches the plant state to be analyzed from the operation record not using the analysis device 7 such as the operation status work results, and records the data recorded in this time zone. It was taken out from the device 6 or the maintenance device 2.
  • the user of the analysis device 7 according to the present embodiment is necessary to reduce the work for investigating the time zone that matches the plant state to be analyzed and to perform analysis processing for detecting a failure sign. Recording data can be easily obtained.
  • FIG. 8 is an explanatory diagram showing an example of processing in which the process chart creation management device 4 creates the actual process chart 42.
  • the process schedule creation management device 4 creates and holds a scheduled process schedule 41 for tests and constructions in advance in order to carry out operations such as plant trial operation and periodic inspection systematically and efficiently.
  • the scheduled process table 41 includes scheduled work dates and work items.
  • the work item includes plant state information.
  • the user of the process schedule creation management device 4 that performs the plant trial operation operates the process schedule creation management apparatus 4 to select the scheduled process schedule 41 including items to be registered in the recording items 61 of the data recording device 6.
  • the scheduled process table 41 selected by the worker is transmitted to the analysis device 7 via the measurement monitoring network N.
  • the analysis device 7 takes in the plant state information given to the scheduled process table 41 of the process table creation management device 4 as plant state information of the analysis device 7.
  • the user of the analysis device 7 performs an operation for searching for each work item included in the scheduled process table 41 from the recorded items 71 stored in the analysis device database 70.
  • the plant state search unit 72 of the analysis device 7 searches the analysis device database 70 as the plant state information corresponding to the work included in the scheduled process table 41 using the work item or work date as a key. At this time, test B is used as a key. Then, the plant state search unit 72 acquires the measurement items A to C and the recorded data whose keys match the plant state information from the analysis device database 70. Thereafter, the analysis device 7 transmits to the data recording device 6 both the signal identifier and the recorded data corresponding to the acquired measurement items A to C.
  • the data recording device 6 registers the plant state information corresponding to the measurement items A to C received from the analysis device 7 in the recording item 61 of the data recording device 6.
  • the user of the data recording device 6 does not need to operate the data recording device 6 to register the recording item 61 whose plant state information is the test B in the recording device database 60. For this reason, the user of the data recording device 6 can reduce the registration work amount of the recording item 61 that was necessary when each work included in the scheduled process table 41 was performed. Thereafter, the data recording device 6 transmits the recorded data recorded in the analysis device database 70 to the process table creation management device 4 corresponding to the plant state information searched by the plant state searching unit 72.
  • the analysis device 7 registers the recording item 71 including the test B acquired from the process chart creation management device 4 as a work item. For this reason, the user of the analysis apparatus 7 can also reduce the work amount for registering the recording item 71.
  • the analysis device 7 provides the process table creation management device 4 with the results of the work items when the maintenance device 2 performs the work such as the test and the construction in the plant trial operation and the periodic inspection through the data recording device 6.
  • the process chart creation management device 4 creates an actual process table 42 based on the recorded data passed from the data recording device 6. For example, after the test B is completed, the data recording device 6 transmits recorded data including the execution date and time of the test B to the process chart creation management device 4.
  • the process table creation management device 4 creates a performance process table 42 including the execution date and time corresponding to the work item of the test B based on the recorded data including the test B execution date and time. Then, the process chart creation management device 4 can easily manage the performance process of the test B using the performance process table 42. Further, the process table creation management device 4 can also manage the deviation between the scheduled process and the actual process of the work by comparing the scheduled process table 41 and the actual process table 42.
  • FIG. 9 is an explanatory diagram illustrating an example of analysis processing in which the analysis device 7 identifies the cause of failure of the control target device 9.
  • the measurement monitoring control device 3 monitors a failure or abnormality (hereinafter abbreviated as “failure”) of the control target device 9, and when a failure of the control target device 9 is detected, the operation monitoring terminal 5 An alarm is issued on the alarm screen together with the time of occurrence of the abnormality.
  • the maintenance staff of the plant uses the recorded data related to the failure after identifying the failure location by the alarm issued to the operation monitoring terminal 5 or the monitoring function of the control logic 21 stored in the maintenance device 2. Identify the cause of the failure.
  • the data recording device 6 stores the failure location and time of occurrence in the failure cause information storage section of the recorded data corresponding to the measurement item of the control target device 9 that caused the failure every time a failure occurs in the operation of the plant. To do. For example, it is assumed that an A pump failure is reported on the alarm screen of the operation monitoring terminal 5. When the cause of this A pump failure is in the measurement item A, the measurement monitoring control device 3 stores failure location information (A pump failure) in the failure cause information storage part of the recorded data of the measurement item A held by the analysis device 7. The information including the occurrence time of the A pump failure is stored.
  • the analysis device 7 When the analysis device 7 performs an analysis process for specifying the cause of the failure, the failure cause information storage unit of the recording item (the location where the failure occurs) to be analyzed is referred to. And the analysis apparatus 7 specifies the failure cause of the failure which occurred in the past which is the same as or similar to the failure warned by the operation monitoring terminal 5 from the failure cause information stored in the failure cause information storage unit. And the analysis apparatus 7 displays the failure cause specified on the display part C5. The user of the analysis device 7 can recognize the occurrence date and time of the failure that has occurred in the past and the measurement item that caused the failure based on the display content of the display unit C5. When the analysis target is the signal identifier ID-A, the analysis device 7 refers to the failure cause information storage unit of the recorded data of the measurement item A, and the measurement item A has caused the A pump failure in the past. It is also possible to recognize this.
  • the causes of failures that occurred in the past have been managed separately from the analysis device 7.
  • the user of the data recording device 6 refers to the management record of the data recording device 6 in order to investigate whether there is a cause that is the same as or similar to the failure that has occurred each time a failure occurs in the controlled device 9.
  • the user of the analysis device 7 executes an analysis process for identifying the cause of the failure using the user interface of the analysis device 7 that is familiar to the user, and the occurrence of a failure that has occurred in the past.
  • the date and time and the measurement item that caused the failure can be obtained from the recorded items.
  • work which the user of the analyzer 7 refers to the management record of the data recording device 6 can be reduced.
  • the user of the analysis device 7 can perform the necessary analysis processing even if he / she does not have knowledge on the basis of plant operation or maintenance experience, nor business knowledge that the maintenance staff should have such as plant piping, control target equipment 9 and sensor configuration. It can be performed.
  • FIG. 10 is an explanatory diagram illustrating an example of processing for creating comparison sample data.
  • the maintenance device 2 holds the plant state information in the recorded data when an event or warning occurs in the plant.
  • the analysis device 7 includes a comparison sample data creation unit 74 and a data comparison unit 75 in addition to the plant state search unit 72 described above.
  • the plant state search unit 72 searches the analysis device database 70 for past plant state information corresponding to the event notified from the maintenance device 2 and acquires recorded data including the past plant state information.
  • the comparison sample data creation unit 74 creates comparison sample data based on recorded data including past plant state information searched by the plant state search unit 72. For example, the comparison sample data creation unit 74 creates comparison sample data using data recorded during heat soak that occurred in the past. At this time, the comparison sample data creation unit 74 obtains the comparison sample data derived for each recording item and each process step in the range of the minimum value and the maximum value of the recording data in each process step when the past heat soak has occurred. create. Thereafter, the comparative sample data creation unit 74 collects events and alarms generated at each process step in the heat soak from the recorded data stored in the analysis device 7.
  • the data comparison unit 75 outputs a comparison result obtained by comparing the recorded data of the plant state notified from the maintenance device 2 with the sample data for comparison. For example, when the recording data at the time of heat soaking of the plant is an analysis target, the plant state search unit 72 uses the recording data stored in the analysis device database 70 in the past, and the recording data at the time of heat soaking ("heat soak" Read recorded data with plant status information). The plant state search unit 72 may search for a plurality of recorded data corresponding to the number of records of the plant state information to be analyzed that are recorded in the analysis device database 70.
  • the data comparison unit 75 compares the recorded data of the measurement items and logic operation values related to the analysis target device of the plant of the recorded data to be analyzed with the recorded data collected by the analysis device 7 and compares the result. Is output.
  • the analysis device 7 compares the plant state information when an event occurs in the plant (control target device 9) and the past plant state information to detect a failure sign, An analysis process for identifying the cause of failure of the device 9 is performed. At this time, the analysis device 7 creates a criterion (comparison sample data) for determining whether the analysis target plant state is in a normal state or an abnormal state. Then, the analysis device 7 compares the recorded data of the measurement items and logic calculation values related to the analysis target device of the plant of the recorded data to be analyzed with the recorded data collected by the analysis device 7.
  • FIG. 11 is an explanatory diagram showing a display example of the range of the minimum and maximum values of the sample data for comparison derived for each process step and the recorded data to be analyzed.
  • FIG. 11 is a screen displayed on the display unit C ⁇ b> 5 of the analysis device 7.
  • the data comparison unit 75 displays the range of the minimum value (Min) and the maximum value (Max) of the sample data for comparison and the recorded data 76 (represented by a solid line) to be analyzed as the recording time t.
  • the recorded data within the range between the minimum value and the maximum value of the sample data for comparison is normal, and the recorded data outside the range between the minimum value and the maximum value of the sample data for comparison is abnormal.
  • the recorded data in the process step 1 is normal because it is within the range of the minimum value and the maximum value of the sample data for comparison.
  • the recorded data 76 in the process step 3 is abnormal because it is outside the range of the minimum value and the maximum value of the sample data for comparison.
  • the allowable deviation set in the sample data for comparison is whether the plant state to be analyzed is in the normal state in the analysis process for detecting a failure sign. It can be used as a reference for determining whether there is an abnormal state. For this reason, the analysis device 7 does not depend on the threshold value set for the measurement value or the calculated value, the activation state or the stop state of the control target device 9, or the design criteria for the start timing or stop timing of the control target device 9. It is possible to obtain a criterion based on the operation results of the plant.
  • the analysis device 7 displays the comparison sample data on the display unit C5 by superimposing the recording data to be analyzed together with the recording data to be analyzed. This makes it easy to determine whether an event or alarm has occurred on the recorded data to be analyzed at each time.
  • collation processing can be used to determine whether the plant state to be analyzed is in a normal state or an abnormal state in the analysis processing for detecting a failure sign.
  • recorded data was recorded only for the period required by plant maintenance personnel and adjustment workers, such as adjustment of plant trial operation and operation check of control program, and discarded after the end of use.
  • the analysis device 7 creates comparison sample data using past recorded data, the comparison sample data can be used for comparison with recorded data to be analyzed.
  • the precision which determines whether the plant state of analysis object is a normal state or an abnormal state can be improved. It is also possible to expand the types of plant states to be analyzed (during testing, starting, normal operation, stopping, etc.).
  • the number of recorded data that the analysis device 7 reads from the analysis device database 70 is plural, and as the number increases, the accuracy of determining whether the plant state is normal or abnormal can be improved.
  • the plant state search part 72 can search efficiently the plant state stored in the database 70 for analyzers by using plant state information as a key.
  • the analysis device 7 may send comparison sample data and recorded data to the maintenance device 2 during plant operation as actual process data in each process of plant operation.
  • the maintenance device 2 may give guidance to the operator of the maintenance device 2 by displaying the comparative sample data and the recorded data on the display unit C5 of the maintenance device 2 during the plant operation.
  • the sample data for comparison can be used as one of the criteria for judging the quality of the result of the plant trial operation as a comparison target with the result data of the plant trial operation. For this reason, the recorded data at the time of normal plant operation stored in the analysis device 7 can be used as a comparison target with data obtained as a result of the plant trial operation.
  • the analysis device 7 records, as plant state information, information related to maintenance work in which the behavior of the plant operation varies depending on the work such as replacement of the turbine blades of the plant and soot cleaning of the soot blower heat transfer surface. Append to Then, the analysis device 7 creates comparative sample data for each piece of information related to maintenance work. As a result, the analysis device 7 displays the comparison sample data for each maintenance operation created in the same plant state on the display unit C5, so that an event that may be the reason for the deviation is displayed on the user of the analysis device 7. Can be given to.
  • FIG. 12 is an explanatory diagram illustrating an example in which the maintenance device 2 registers a recording item for each test.
  • the recorded items of the maintenance device 2 may differ depending on the plant state.
  • a plurality of recorded items may be registered in the analysis device 7.
  • the analysis apparatus 7 can identify the plant state at the time of recording of the recording data made into analysis object, and can utilize the plant state of the recording data made into analysis object. As an example of this, an example will be described in which the maintenance device 2 registers a recording item from the analysis device 7 for each test for each plant state information.
  • the maintenance device 2 registers a signal identifier in the analysis device 7, and acquires plant state information for each signal identifier searched by the analysis device 7 based on the signal identifier.
  • the signal identifiers ID-A, ID-B, ID-C, and ID-D are required to be registered in the recording items of the maintenance device 2 during the test A, and the signal identifiers ID-C and ID-X are used during the test B.
  • ID-Y and ID-Z are required to be registered in the recording items of the maintenance device 2.
  • the signal identifiers ID-A, ID-B, and ID-D are registered in the recording items during the test A period.
  • the recorded item of test A is deleted, and during the period of test B, signal identifiers ID-C, ID-X, ID-Y and ID-Z are registered in the recorded item.
  • the operation in which the maintenance device 2 registers the signal identifier in the analysis device 7 has been described with reference to FIG.
  • the analysis device database 70 of the analysis device 7 recorded items of test A and test B are registered, and recorded data in which plant state information is added to each recorded item is stored in the analysis device database 70. Is done.
  • the plant state search unit 72 can search the plant state information.
  • the analysis device 7 transmits plant state information corresponding to the signal identifier to the maintenance device 2.
  • the maintenance apparatus 2 can register the plant state information corresponding to the signal identifier. Note that the processing of the maintenance device 2 transmitting the signal identifier to the analysis device 7 and acquiring the plant state information corresponding to the signal identifier from the analysis device 7 can also be performed by the data recording device 6.
  • FIG. 13 is an explanatory diagram illustrating an example of processing for registering related signal information in a recording item.
  • the piping system diagram D1 includes pressure, temperature, flow rate, detectors such as valves and pumps in the plant, arrangement of the control target device 9, connection of piping, branch information, and the like.
  • the piping system diagram D1 shown in FIG. 13 shows a piping system of a pressure gauge, a control valve, and a flow meter.
  • the control system diagram / control block diagram D2 includes plant control logic 21 and parameter information.
  • a control system diagram / control block diagram D2 shown in FIG. 13 shows how the opening degree of the control valve A2 is adjusted based on the pressure A measured by the pressure gauge.
  • the operator operates the maintenance device 2 or the data recording device 6 to register the pressure A as a measurement item to be monitored in the recording item of the maintenance device 2 or the data recording device 6.
  • the analysis device 7 reads the related signal information of the control target device 9 related to the measurement item stored in the recording item of either the maintenance device 2 or the data recording device 6 from the related signal information storage unit. It is possible to obtain from For this reason, the measurement item and logic operation value which are highly relevant to each recording item are registered in the related signal information storage unit of the recording item in advance.
  • the maintenance device 2 or the data recording device 6 has a flow rate A1, a control valve A2 opening degree, a control valve A2 opening command value, a temperature A3 measurement item, a logic calculation value, etc. that are highly related to the pressure A.
  • the analysis device 7 determines the flow rate A1, the opening degree of the control valve A2, the opening command value of the control valve A2, the temperature A3, etc.
  • Measurement items, logic operation values, and the like can be read from the data recording device 6 and these values can be automatically registered in the recording items.
  • the analysis device 7 can easily register the recording item having high relevance to the measurement item and the logic operation value when registering the measurement item and the logic operation value to be monitored in the recording item. In this way, even users who do not have knowledge based on plant operation or maintenance experience, or maintenance knowledge of plant piping, controlled equipment 9, sensor configuration, etc., operate the analyzer 7 to operate the plant. Recording items necessary for monitoring and driving can be easily registered.
  • the setting operation for selecting and registering the recording item 71 in the analysis device 7 can be performed from the data recording device 6 or the maintenance device 2. For this reason, conventionally, it is possible to reduce the trouble of selecting and setting the recording items by the user of each apparatus. Then, the maintenance device 2 or the data recording device 6 supplies the recording data to the analysis device 7 so that the user of the analysis device 7 can easily use the recording data.
  • the recording items of the data recording device 6 can be used by the maintenance device 2, the data recording device 6, and the analysis device 7 for their respective purposes.
  • the user of the maintenance device 2, the data recording device 6, and the analysis device 7 obtains necessary information from the target recording items by using a user interface prepared in advance in a familiar device in a normal manner. be able to. Therefore, it is possible to improve convenience while reducing the work performed by each device.
  • recorded data that has been discarded after the end of the event can be stored in the analysis device database 70 and used for failure sign analysis performed by the analysis device 7.
  • the analysis device 7 can easily obtain recorded data necessary for performing failure sign analysis.
  • workers who do not have business knowledge such as knowledge based on plant operation or maintenance experience, plant piping, control target equipment 9, sensor group 8 configuration, etc., call related items at the relevant location when a failure occurs be able to.
  • the present invention is not limited to the above-described embodiments, and various other application examples and modifications can be taken without departing from the gist of the present invention described in the claims.
  • the above-described embodiments are detailed and specific configurations of the apparatus and the system in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described.
  • the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

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Abstract

The purpose of the present invention is to reduce the work required for a data analysis process. The data analysis system (1) according to the present invention is provided with: a maintenance device (2) responsible for creating and managing control/protection logic (21) and parameters for equipment (9) to be controlled; a data recording device (6) which stores additional information used by an analysis device (7) to search data; and the analysis device (7) which analyzes data read from the data recording device (6). The maintenance device (2) or the data recording device (6), using a predetermined user interface set for each device, selects and sets record items for the analysis device (7) so that the analysis device (7) stores these record items. The analysis device (7) stores, for each record item set by the maintenance device (2) or the data recording device (6), data extracted from the data recording device (6), and performs a predetermined analysis process.

Description

データ解析システムData analysis system
　本発明は、データ解析システムに関する。 The present invention relates to a data analysis system.
　例えば、電力、鉄鋼、上下水道、石油、化学等の分野の産業プラントは、設計されたプラントプロセス動作を実現するために各設備が配管等で接続され、必要な条件で調整、制御されている。これら設備の調整、制御は、各設備における温度、圧力、流量等の物理状態を入力とし、この物理状態に適切な演算を加えた後に、弁、ヒーター、ファン、モータ等の制御対象機器に出力を与えることで実行される。 For example, industrial plants in the fields of electric power, steel, water and sewage, petroleum, chemicals, etc. are connected and connected to each facility with piping etc. in order to realize the designed plant process operation, and are adjusted and controlled under necessary conditions. . For the adjustment and control of these facilities, input the physical state such as temperature, pressure, flow rate, etc. in each facility, add appropriate calculations to this physical state, and then output it to controlled devices such as valves, heaters, fans, and motors. It is executed by giving.
　このような演算を行う計測監視制御装置は、各設備に設けたセンサー等から計測信号（計測項目）を一定周期で取り込んでいる。この計測監視制御装置は、制御・保護ロジック、パラメーターの作成、パラメーターの管理等のプラント監視制御の調整機能を有する保守装置に接続されている。 Measured monitoring control devices that perform such calculations capture measurement signals (measurement items) at regular intervals from sensors provided in each facility. This measurement monitoring control device is connected to a maintenance device having an adjustment function of plant monitoring control such as control / protection logic, parameter creation, parameter management and the like.
　計測項目の時系列データは、保守装置に保存されるが、保守装置に接続されたデータ収録装置に計測項目の時系列データが保存されることもある。また、計測監視制御装置は、機器の状態を示す計測信号のデータを使用して制御対象機器の故障原因を特定するための解析処理や、故障予兆を検出するための解析処理等を行う解析装置に接続されることもある。 The time series data of measurement items is stored in the maintenance device, but the time series data of measurement items may be stored in a data recording device connected to the maintenance device. In addition, the measurement monitoring control device is an analysis device that performs analysis processing for identifying the cause of failure of the control target device using analysis signal data indicating the state of the device, analysis processing for detecting a failure sign, etc. It may be connected to.
　特許文献１には、履歴データに基づいて過去のプラント状態を解析するための解析用データとしてキー情報を生成し、このキー情報を介してプラント内の情報を共有化する方法が開示されている。 Patent Document 1 discloses a method of generating key information as analysis data for analyzing a past plant state based on history data and sharing information in the plant via this key information. .
特開２０１２－９９０７１号公報JP 2012-99071 A
　ところで、保守装置、データ収録装置、解析装置の用途は互いに異なり、各装置の使用者や、各装置がデータを使用する要件も装置毎に異なっている。
　例えば、保守装置では、プラントの運転員によるプラント運転の調整、制御プログラムの調整員による制御プログラムの動作確認、機器故障箇所の特定等の作業が行われる。これらの作業はプラントの通常運転時、及びプラント試運転時に行われるため、プラントから出力されるデータを表示部に表示したり、データを検索したりする作業の即応性が求められる。
　また、データ収録装置では、プラントから出力されるデータを時系列で正しく収録することが求められる。
　また、解析装置では、例えば、制御対象機器の保守管理者等が機器故障の原因を特定したり、故障予兆を検出したりするためのデータ照合、加工、解析等の作業を行っており、データの加工容易性等が求められる。 By the way, the usages of the maintenance device, the data recording device, and the analysis device are different from each other, and the users of each device and the requirements for each device to use data are also different for each device.
For example, in the maintenance device, operations such as plant operation adjustment by the plant operator, operation check of the control program by the control program coordinator, and identification of an equipment failure location are performed. Since these operations are performed during normal operation of the plant and during trial operation of the plant, it is necessary to display data output from the plant on the display unit or to perform quick operations for searching for data.
In addition, the data recording device is required to correctly record data output from the plant in time series.
In the analysis device, for example, the maintenance manager of the control target device performs data collation, processing, analysis, etc. to identify the cause of the device failure or detect the failure sign. Ease of processing is required.
　しかし、特許文献１に開示されたプラント解析システムでは、システムを構成する各装置の動作に関連がない。このため、例えば、保守装置の使用者と、解析装置の使用者とが、同じデータを用いる場合であっても、各装置の使用者が装置毎に個別の設定を行う必要があった。 However, the plant analysis system disclosed in Patent Document 1 is not related to the operation of each device constituting the system. For this reason, for example, even when the user of the maintenance device and the user of the analysis device use the same data, the user of each device has to make individual settings for each device.
　本発明はこのような状況に鑑みて成されたものであり、データの解析処理に必要とされる作業を低減することを目的とする。 The present invention has been made in view of such a situation, and an object thereof is to reduce work required for data analysis processing.
　本発明に係るデータ解析システムは、プラントを構成する制御対象機器の制御保護ロジック及びパラメーターの作成及び管理を司る保守装置と、解析装置によるデータの検索に用いられる付加情報を付加して、制御対象機器の動作状態を示すデータの収録項目を保存するデータ収録装置と、所定の目的に応じてデータ収録装置から読出したデータの解析を行う解析装置と、を備える。
　保守装置又はデータ収録装置は、装置毎に設定される所定のユーザーインターフェイスを用いて解析装置が保存する収録項目の選択及び設定を解析装置に行う。
　解析装置は、保守装置又はデータ収録装置により選択及び設定された収録項目に、データ収録装置から抽出したデータを格納して所定の解析処理を行う。 The data analysis system according to the present invention adds a control device to control and control logic of the control target equipment constituting the plant and a maintenance device that manages parameter creation and management, and additional information used for data search by the analysis device. A data recording device for storing data recording items indicating the operation state of the device; and an analysis device for analyzing data read from the data recording device according to a predetermined purpose.
The maintenance device or the data recording device uses the predetermined user interface set for each device to select and set the recording items stored in the analysis device in the analysis device.
The analysis device stores the data extracted from the data recording device in the recording items selected and set by the maintenance device or the data recording device, and performs a predetermined analysis process.
　本発明によれば、解析装置は、保守装置又はデータ収録装置により選択及び設定された収録項目に格納したデータにより所定の解析処理を行うことが可能となるため、解析装置の使用者による解析処理のための設定作業を低減することができる。
　上記した以外の課題、構成及び効果は、以下の実施の形態例の説明により明らかにされる。 According to the present invention, the analysis device can perform a predetermined analysis process using the data stored in the recording item selected and set by the maintenance device or the data recording device. The setting work for can be reduced.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.
本発明の一実施の形態例に係るデータ解析システムの全体構成例を示すブロック図である。It is a block diagram which shows the example of whole structure of the data analysis system which concerns on the example of 1 embodiment of this invention. 本発明の一実施の形態例に係る計算機のハードウェア構成例を示すブロック図である。It is a block diagram which shows the hardware structural example of the computer which concerns on the example of 1 embodiment of this invention. 本発明の一実施の形態例に係る収録項目の第１の構成例を示す説明図である。It is explanatory drawing which shows the 1st structural example of the recording item which concerns on one embodiment of this invention. 本発明の一実施の形態例に係る収録項目の第２の構成例を示す説明図である。It is explanatory drawing which shows the 2nd structural example of the recording item which concerns on one embodiment of this invention. 本発明の一実施の形態例に係る保守装置が既登録の情報を利用して、解析装置からプラント状態情報を取得する処理の例を示す説明図である。It is explanatory drawing which shows the example of the process in which the maintenance apparatus which concerns on the example of 1 embodiment of this invention acquires plant state information from an analyzer using the registered information. 本発明の一実施の形態例に係る解析装置が解析に必要な信号を選択して、解析装置用データベースに収録データとして登録する処理の例を示す説明図である。It is explanatory drawing which shows the example of the process which the analyzer which concerns on one embodiment of this invention selects a signal required for an analysis, and registers it as recorded data in the database for analyzers. 本発明の一実施の形態例に係る解析装置が故障予兆解析対象データを用いて、故障原因を取得する例を示す説明図である。It is explanatory drawing which shows the example which the analyzer which concerns on one embodiment of this invention acquires a failure cause using failure sign analysis object data. 本発明の一実施の形態例に係る工程表作成管理装置が実績工程表を作成する処理の例を示す説明図である。It is explanatory drawing which shows the example of the process which the process schedule creation management apparatus concerning one embodiment of this invention produces a performance process schedule. 本発明の一実施の形態例に係る解析装置が制御対象機器の故障原因を特定する解析処理の例を示す説明図である。It is explanatory drawing which shows the example of the analysis process which the analysis apparatus which concerns on the example of 1 embodiment of this invention specifies the failure cause of a control object apparatus. 本発明の一実施の形態例に係る比較用サンプルデータを作成する処理の例を示す説明図である。It is explanatory drawing which shows the example of the process which produces the sample data for a comparison which concerns on one embodiment of this invention. 本発明の一実施の形態例に係るプロセスステップ毎に導出された比較用サンプルデータの最小値と最大値の範囲と、解析対象とする収録データとの表示例を示す説明図である。It is explanatory drawing which shows the example of a display of the minimum value of the sample data for a comparison and the range of the maximum value derived | led-out for every process step which concerns on the example of 1 embodiment of this invention, and the recording data made into analysis object. 本発明の一実施の形態例に係る保守装置がテスト毎に収録項目を登録する例を示す説明図である。It is explanatory drawing which shows the example which the maintenance apparatus which concerns on one embodiment of this invention registers a recording item for every test. 本発明の一実施の形態例に係る関係信号情報を収録項目に登録する処理の例を示す説明図である。It is explanatory drawing which shows the example of the process which registers the related signal information which concerns on the example of 1 embodiment of this invention to a recording item.
　以下、本発明を実施するための形態例について、添付図面を参照して説明する。本明細書及び図面において、実質的に同一の機能又は構成を有する構成要素については、同一の符号を付することにより重複する説明を省略する。
　図１は、データ解析システム１の全体構成例を示すブロック図である。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In the present specification and drawings, components having substantially the same function or configuration are denoted by the same reference numerals, and redundant description is omitted.
FIG. 1 is a block diagram illustrating an example of the overall configuration of the data analysis system 1.
　データ解析システム１は、保守装置２、計測監視制御装置３、工程表作成管理装置４、運転監視端末５、データ収録装置６及び解析装置７を備える。保守装置２、計測監視制御装置３、工程表作成管理装置４、データ収録装置６及び解析装置７は、計測監視ネットワークＮに接続されており、相互にデータを通信可能である。また、運転監視端末５は、計測監視制御装置３に接続されている。データ解析システム１は、例えば、発電プラント（以下、「プラント」と呼ぶ）が出力するデータの解析処理を行う。なお、データ解析システム１を、プラントの動作を制御するためのプラント制御システムとして用いることも可能である。 The data analysis system 1 includes a maintenance device 2, a measurement monitoring control device 3, a process chart creation management device 4, an operation monitoring terminal 5, a data recording device 6, and an analysis device 7. The maintenance device 2, the measurement monitoring control device 3, the process chart creation management device 4, the data recording device 6 and the analysis device 7 are connected to the measurement monitoring network N and can communicate data with each other. The operation monitoring terminal 5 is connected to the measurement monitoring control device 3. For example, the data analysis system 1 performs an analysis process on data output from a power plant (hereinafter referred to as “plant”). The data analysis system 1 can also be used as a plant control system for controlling the operation of the plant.
　保守装置２は、例えば、保守員や調整作業員（使用者とも呼ぶ）によりオンラインで使用され、制御ロジック２１（制御保護ロジックの一例）を管理している。制御ロジック２１に基づいて、計測監視制御装置３はプラントを構成する制御対象機器９（例えば、プラント設備、プラント機器）の動作を制御する。保守装置２には、使用者が行った操作を、制御ロジック２１を通じてリアルタイムに制御対象機器９に伝えると共に、制御ロジック２１の実行結果を直ちに表示部Ｃ５（後述する図２を参照）に表示可能とする表示即応性が要求される。この保守装置２は、センサー群８が設けられた制御対象機器９を含むプラントの動作を規定する制御ロジック２１を構築する。制御ロジック２１は、センサー群８が計測した計測信号に基づいて保守装置２で作成されるものである。作成された制御ロジック２１は、計測監視制御装置３により実行される。 The maintenance device 2 is used online by, for example, maintenance personnel and adjustment workers (also called users), and manages the control logic 21 (an example of control protection logic). Based on the control logic 21, the measurement monitoring control device 3 controls the operation of the control target equipment 9 (for example, plant equipment, plant equipment) constituting the plant. The maintenance device 2 can transmit the operation performed by the user to the control target device 9 in real time through the control logic 21 and can immediately display the execution result of the control logic 21 on the display unit C5 (see FIG. 2 described later). Display responsiveness is required. The maintenance device 2 constructs a control logic 21 that regulates the operation of the plant including the control target device 9 provided with the sensor group 8. The control logic 21 is created by the maintenance device 2 based on the measurement signal measured by the sensor group 8. The created control logic 21 is executed by the measurement monitoring control device 3.
　上述したようにプラントは、制御ロジック２１に基づいて動作が制御される。保守装置２にて実行されるプログラムは、プラントの制御・保護ロジック、プラント制御に用いられるパラメーターを作成したり、パラメーターの管理等を行ったりする。また、保守装置２は、特定の信号識別子に対するプラント状態情報を解析装置７から取得することが可能である。 As described above, the operation of the plant is controlled based on the control logic 21. The program executed by the maintenance device 2 creates plant control / protection logic, parameters used for plant control, manages parameters, and the like. Further, the maintenance device 2 can acquire plant state information for a specific signal identifier from the analysis device 7.
　計測監視制御装置３は、センサー群８が制御対象機器９を計測して出力する計測信号を直接取得し、プラントの動作を監視制御する。この計測信号の値は、データ収録装置６により計測項目として取り込まれる。計測監視制御装置３が監視、制御、保護するプラントへの出力値は、制御ロジック２１から得られる。 The measurement monitoring control device 3 directly acquires the measurement signal output by the sensor group 8 measuring and outputting the control target device 9, and monitors and controls the operation of the plant. The value of this measurement signal is captured as a measurement item by the data recording device 6. The output value to the plant monitored, controlled and protected by the measurement monitoring control device 3 is obtained from the control logic 21.
　工程表作成管理装置４は、保守装置２がプラントの試運転や定期点検等を行うためのテストや工事等の作業の予定を格納する予定工程表４１（後述する図８を参照）と、作業の作業実績を格納する実績工程表４２（後述する図８を参照）を作成する。 The process table creation management apparatus 4 includes a schedule process table 41 (see FIG. 8 to be described later) for storing work schedules such as tests and constructions for the maintenance apparatus 2 to perform trial operation and periodic inspection of the plant, A result process table 42 (see FIG. 8 described later) for storing work results is created.
　センサー群８は、制御対象機器９に取り付けられた各種センサーを総称したものである。センサー群８には、計測監視制御装置３がプラントの監視、制御、保護を行うために必要な演算を行うための信号の発生元であるセンサーや１ループ計器等の他の計測監視制御装置が含まれる。センサー群８は、例えば、制御対象機器９の温度、圧力、流量等の物理状態を計測したセンサー値を計測信号として計測監視制御装置３に出力する。 The sensor group 8 is a generic term for various sensors attached to the control target device 9. The sensor group 8 includes other measurement monitoring and control devices such as a sensor and a one-loop instrument that generate signals for the measurement monitoring and control device 3 to perform calculations necessary for monitoring, controlling, and protecting the plant. included. The sensor group 8 outputs, for example, a sensor value obtained by measuring a physical state such as temperature, pressure, and flow rate of the control target device 9 as a measurement signal to the measurement monitoring control device 3.
　データ収録装置６は、計測監視制御装置３がセンサー群８から収集した計測信号のデータ（以下、「収録データ」と呼ぶ）を、計測監視ネットワークＮを通じて取得する。この収録データには、プラントの運転監視と運転実績に関する情報（例えば、タービン圧力、タービン回転数、タービン温度等）が含まれる。そして、データ収録装置６は、解析装置７により収録データの検索に用いられる付加情報を付加して、制御対象機器９の動作状態を示す収録データを収録項目６１に保存する。データ収録装置６が取得した収録データは、収録項目６１に格納され、データ収録装置６が備える収録装置用データベース６０に蓄積される。例えば、計測監視制御装置３が制御ロジック２１を実行すると、信号識別子、ロジック演算値の時系列値、ロジック演算値の取得時刻等の属性情報から構成される収録データが収録装置用データベース６０に蓄積される。そして、保守装置２又はデータ収録装置６は、装置毎に設定される予め用意されたユーザーインターフェイスを用いて解析装置７が保存する収録項目７１の選択及び設定を解析装置７に行うことが可能である。 The data recording device 6 acquires measurement signal data (hereinafter referred to as “recorded data”) collected from the sensor group 8 by the measurement monitoring control device 3 through the measurement monitoring network N. This recorded data includes information related to plant operation monitoring and operation results (for example, turbine pressure, turbine speed, turbine temperature, etc.). Then, the data recording device 6 adds additional information used by the analysis device 7 for searching the recorded data, and stores the recorded data indicating the operation state of the control target device 9 in the recorded item 61. The recording data acquired by the data recording device 6 is stored in the recording items 61 and accumulated in the recording device database 60 provided in the data recording device 6. For example, when the measurement monitoring control device 3 executes the control logic 21, recording data including attribute information such as a signal identifier, a time series value of a logic operation value, and a time of acquisition of the logic operation value is accumulated in the recording device database 60. Is done. The maintenance device 2 or the data recording device 6 can select and set the recording item 71 stored in the analysis device 7 in the analysis device 7 using a user interface prepared in advance for each device. is there.
　解析装置７は、所定の目的に応じてデータ収録装置６から読出した収録データの解析処理を行うものであり、例えば、制御対象機器９の保守管理者によりオフラインで使用される。このため、解析装置７は、解析に用いる収録データの加工を容易に行えることが必要である。解析処理の結果は、例えば、解析装置７に設けられた表示部Ｃ５（後述する図２を参照）に表示される。 The analysis device 7 performs analysis processing of recorded data read from the data recording device 6 in accordance with a predetermined purpose, and is used offline by a maintenance manager of the control target device 9, for example. For this reason, the analysis device 7 needs to be able to easily process the recorded data used for the analysis. The result of the analysis processing is displayed on, for example, a display unit C5 (see FIG. 2 described later) provided in the analysis device 7.
　この解析装置７は、特定の収録データを蓄積する解析装置用データベース７０を備える。解析装置７は、解析に使用する収録データを、収録装置用データベース６０から計測監視ネットワークＮを通じて選択し、この収録データを解析装置用データベース７０に蓄積する。解析装置用データベース７０にも、収録装置用データベース６０の収録項目６１と同様の構成とした収録項目７１が存在する。解析装置用データベース７０には、解析装置７の使用者が収録項目７１を設定するだけでなく、データ収録装置６又は保守装置２の使用者が収録項目７１を設定することも可能である。また、解析装置７は、データ収録装置６又は保守装置２により設定された収録項目７１に、データ収録装置６から抽出した収録データを登録することもできる。 The analysis device 7 includes an analysis device database 70 for storing specific recorded data. The analysis device 7 selects recorded data to be used for analysis from the recording device database 60 through the measurement monitoring network N, and accumulates the recorded data in the analyzing device database 70. The analysis device database 70 also includes a recording item 71 having the same configuration as the recording item 61 of the recording device database 60. In the analysis device database 70, not only the user of the analysis device 7 sets the recording item 71, but also the user of the data recording device 6 or the maintenance device 2 can set the recording item 71. The analysis device 7 can also register the recording data extracted from the data recording device 6 in the recording item 71 set by the data recording device 6 or the maintenance device 2.
　また、解析装置７は、保守装置２又はデータ収録装置６により選択及び設定された収録項目７１に、データ収録装置６から抽出した収録データを格納して所定の解析処理を行う。例えば、解析装置７は、収録項目７１にプラント正常動作時の履歴データとして収録データを蓄積し、蓄積した収録データを用いて、制御対象機器９の故障原因を特定するための解析処理や、故障予兆を検出するための解析処理等を実行する。このとき、解析装置７は、プラント状態情報をキーとして、収録装置用データベース６０を検索し、取得した解析対象である収録データを解析装置用データベース７０に格納する。そして、制御対象機器９に故障が発生した場合には、過去に故障が発生した時のプラント状態と同一又は類似するプラント状態の収録データを解析装置用データベース７０から検索し、取得する。解析装置７が収録データを解析処理に用いる際には、後述する図１０に示すように解析装置用データベース７０から検索し、取得した過去の収録データから比較用サンプルデータを作成し、収録データと比較用サンプルデータを比較することができる。また、制御対象機器９の故障予兆を検出するための解析処理では、解析装置用データベース７０に蓄積したプラント正常動作時の収録データと、解析装置７が故障予兆の検出のために収録装置用データベース６０から取得したデータとを比較することが可能となる。 Also, the analysis device 7 stores the recorded data extracted from the data recording device 6 in the recording item 71 selected and set by the maintenance device 2 or the data recording device 6 and performs a predetermined analysis process. For example, the analysis device 7 accumulates recording data as history data at the time of normal plant operation in the recording item 71, and uses the stored recording data to perform analysis processing for identifying the cause of failure of the control target device 9, Perform analysis processing to detect signs. At this time, the analysis device 7 searches the recording device database 60 using the plant state information as a key, and stores the acquired recording data to be analyzed in the analysis device database 70. When a failure occurs in the control target device 9, recorded data of the plant state that is the same as or similar to the plant state when the failure has occurred in the past is retrieved from the analysis device database 70 and acquired. When the analysis device 7 uses the recorded data for the analysis processing, as shown in FIG. 10 to be described later, the sample data is retrieved from the analysis device database 70 and comparison sample data is created from the acquired past recorded data. Comparison sample data can be compared. Further, in the analysis process for detecting a failure sign of the control target device 9, the recording data stored in the analysis device database 70 during normal operation of the plant and the recording device database for the analysis device 7 to detect the failure sign. It becomes possible to compare with the data acquired from 60.
　保守装置２、データ収録装置６及び解析装置７が有する機能は、各々個別の装置にて実現してもよいし、２つ以上の機能が１つの装置で実現されてもよい。また、保守装置２、計測監視制御装置３、工程表作成管理装置４、データ収録装置６及び解析装置７は、装置毎に使用者が異なってもよく、同じであってもよい。 The functions of the maintenance device 2, the data recording device 6, and the analysis device 7 may be realized by individual devices, or two or more functions may be realized by one device. In addition, the maintenance device 2, the measurement monitoring control device 3, the process chart creation management device 4, the data recording device 6, and the analysis device 7 may be the same or different for each device.
　運転監視端末５は、計測監視制御装置３を通じて、制御対象機器９を含むプラントの運転監視を行う。制御対象機器９に故障が発生した場合、運転監視端末５は、後述する図９に示すように、制御対象機器９に発生した故障の発生を警報し、故障が発生した制御対象機器９の情報を、計測監視制御装置３を通じて解析装置７に提供する。そして、解析装置７は、運転監視端末５から受け取った情報を、解析装置用データベース７０に蓄積し、運転監視端末５により警報された故障と同一又は類似の過去に発生した故障の故障原因を故障原因情報から特定することが可能である。 The operation monitoring terminal 5 performs operation monitoring of the plant including the control target device 9 through the measurement monitoring control device 3. When a failure occurs in the control target device 9, the operation monitoring terminal 5 warns of the occurrence of the failure that occurred in the control target device 9, as shown in FIG. 9 described later, and information on the control target device 9 in which the failure occurred. Is provided to the analysis device 7 through the measurement monitoring control device 3. Then, the analysis device 7 accumulates the information received from the operation monitoring terminal 5 in the analysis device database 70, and the failure cause of the failure that occurred in the past is the same as or similar to the failure that was alarmed by the operation monitoring terminal 5. It can be identified from the cause information.
　ここで、データ収録装置６の収録装置用データベース６０に収録される収録データについて説明する。
　収録装置用データベース６０に格納される収録項目６１は、例えば、計測項目Ａ、Ｂに加えて、制御ロジック２１のロジック演算値等を収録する。
　ここで、計測項目Ａに注目する。計測項目Ａは、収録データ６２により構成される。計測項目Ａに対応する収録データ６２は、信号識別子、時系列値、取得時刻、属性ａ、属性ｂ、属性ｃの他に、付加情報を含む。信号識別子とは、例えば、プラントに対して実施されるテストの収録項目を識別するために用いられる情報である。時系列値とは、計測項目Ａの取得時刻における値である。取得時刻とは、計測監視制御装置３がセンサー群８から計測項目Ａを取得した時刻である。属性とは、計測項目Ａの詳細情報である。付加情報とは、計測項目Ａに付随して設けられる属性情報の一部である。 Here, the recorded data recorded in the recording device database 60 of the data recording device 6 will be described.
The recording items 61 stored in the recording device database 60 include, for example, the logic operation values of the control logic 21 in addition to the measurement items A and B.
Here, pay attention to measurement item A. The measurement item A is composed of recorded data 62. The recorded data 62 corresponding to the measurement item A includes additional information in addition to the signal identifier, time series value, acquisition time, attribute a, attribute b, and attribute c. A signal identifier is information used in order to identify the recording item of the test implemented with respect to a plant, for example. The time series value is a value at the acquisition time of the measurement item A. The acquisition time is the time when the measurement monitoring control device 3 acquires the measurement item A from the sensor group 8. The attribute is detailed information of the measurement item A. The additional information is a part of attribute information provided along with the measurement item A.
　付加情報には、例えば、（１）テスト（試験）、工事、養生等のプラントにおける作業を表す情報、（２）設備の一部停止、全停止等の停止状態の種別を表す情報が含まれる。また、付加情報には、例えば、（３）生産量、出力制限等による制限運転、部分負荷運転、所内単独運転等の運転状態の種別を表す情報、（４）タービンの動翼の交換、スートブロワ伝熱面の煤清掃等の設備保全の種別を表す情報が含まれる。また、付加情報には、例えば、（５）プラントのコールド起動、ホット起動等の起動モードを表す情報、（６）機器の故障やランバック運転等のプラント又は機器の異常状態を表す情報が含まれる。 The additional information includes, for example, (1) information representing work in the plant such as test (test), construction, and curing, and (2) information representing the type of stop state such as partial stop of the facility and full stop. . Further, the additional information includes, for example, (3) information indicating the type of operation state such as limited operation due to production volume, output limitation, partial load operation, in-house single operation, etc., (4) replacement of turbine blades, soot blower Information indicating the type of equipment maintenance such as cleaning the heat transfer surface is included. Further, the additional information includes, for example, (5) information indicating a start mode such as cold start or hot start of the plant, and (6) information indicating an abnormal state of the plant or device such as a device failure or a runback operation. It is.
　さらに、付加情報には、プラント状態情報格納部、故障原因情報格納部及び関係信号情報格納部が含まれる。
　プラント状態情報格納部には、例えば、試験、工事等の作業、設備の一部停止、生産量・出力制限等の制限運転のようにプラントのイベント又は状態といったプラント状態を表すプラント状態情報が格納される。プラント状態情報は、データ収録装置６がキーとして収録装置用データベース６０に蓄積された収録データから、目的とする収録データを検索、取得するために用いられる。そして、付加情報にプラント状態情報が含まれることにより、プラント状態毎に異なる収録項目を識別することが可能となる。 Further, the additional information includes a plant state information storage unit, a failure cause information storage unit, and a related signal information storage unit.
The plant status information storage unit stores plant status information indicating plant status such as plant events or status, such as tests, construction work, partial shutdown of equipment, and limited operation such as production / output limits. Is done. The plant state information is used by the data recording device 6 to search and acquire target recording data from the recording data stored in the recording device database 60 as a key. Then, by including the plant state information in the additional information, it becomes possible to identify different recording items for each plant state.
　故障原因情報格納部には、過去にプラントに発生して故障の原因となった計測項目、機器等の制御対象機器９に過去に発生した故障の故障原因を表す故障原因情報が格納される。故障原因情報は、故障原因となった計測項目又は機器の情報を、故障毎に故障原因情報格納部に格納し、蓄積したものである。 The failure cause information storage unit stores failure cause information indicating a failure cause of a failure that has occurred in the past in the control target device 9 such as a measurement item or device that has occurred in the plant and caused the failure in the past. The failure cause information is information obtained by storing the measurement item or device information causing the failure in the failure cause information storage unit for each failure.
　関係信号情報格納部には、計測項目やロジック演算値が属する配管系統図、制御系統図等の計画図書において、計測項目やロジック演算値等の互いに関係する複数の制御対象機器９の関係信号を表す関係信号情報が格納される。計測項目は、関係信号情報として配管系統や制御系統に関係づけられるため、保守装置２、解析装置７は、計測項目やロジック演算値に関係した収録データをデータ収録装置６から読出すことができる。 In the related signal information storage unit, in the planning documents such as the piping system diagram and the control system diagram to which the measurement item and the logic operation value belong, the related signals of the plurality of control target devices 9 such as the measurement item and the logic operation value are related to each other. The related signal information to be represented is stored. Since the measurement item is related to the piping system and the control system as the related signal information, the maintenance device 2 and the analysis device 7 can read the recording data related to the measurement item and the logic operation value from the data recording device 6. .
　なお、収録装置用データベース６０に格納される収録項目６１と同様の構成とした収録項目７１が解析装置７の解析装置用データベース７０に構成される。
　このため、プラント状態情報は、解析装置７がキーとして、解析装置用データベース７０に蓄積された収録データから、解析したい収録データを格納した時刻におけるプラント状態と同じプラント状態の収録データを検索、取得するために用いられる。解析装置７がデータ収録装置６から取得した収録データを故障予兆解析に用いる際には、解析装置７が解析装置用データベース７０から検索し、取得した過去の収録データを、比較用サンプルデータ（後述する図１０を参照）として使用できる。 A recording item 71 having the same configuration as the recording item 61 stored in the recording device database 60 is configured in the analysis device database 70 of the analysis device 7.
For this reason, the plant state information is searched and acquired from the recorded data stored in the analysis device database 70 by using the analysis device 7 as a key. The recorded data is the same plant state as the plant state at the time when the recorded data to be analyzed is stored. Used to do. When the analysis device 7 uses the recording data acquired from the data recording device 6 for failure sign analysis, the analysis device 7 searches the analysis device database 70 and uses the acquired past recording data as comparison sample data (described later). (See FIG. 10).
　また、故障原因情報は、解析装置７がキーとして、解析装置用データベース７０に蓄積された収録データから、過去に発生した故障の原因箇所を検索し、取得するために用いられる。そして、解析装置７が故障の原因特定解析を行う際には、解析装置用データベース７０から過去に発生した故障の原因箇所を検索し、取得することが可能である。 The failure cause information is used by the analysis device 7 as a key to search and acquire the cause of the failure that has occurred in the past from the recorded data stored in the analysis device database 70. When the analysis device 7 performs the cause identification analysis of the failure, it is possible to search and acquire the cause of the failure that has occurred in the past from the analysis device database 70.
　また、保守装置２は、解析装置７から収録項目７１に含まれる情報、又はデータ収録装置６から収録項目６１に含まれる情報を取得することも可能である。図１に示すように保守装置２はデータベースを備えていないが、他の装置と同様に保守装置用データベースを備え、保守装置用データベースに収録項目を構成してもよい。以下の説明で、収録項目６１、７１を区別しない場合は、「収録項目」と表記する。 The maintenance device 2 can also acquire information included in the recording item 71 from the analysis device 7 or information included in the recording item 61 from the data recording device 6. As shown in FIG. 1, the maintenance device 2 does not include a database. However, as with other devices, the maintenance device 2 may include a maintenance device database, and the recording items may be configured in the maintenance device database. In the following description, when the recording items 61 and 71 are not distinguished, they are described as “recording items”.
　次に、データ解析システム１の各装置を構成する計算機Ｃのハードウェア構成を説明する。
　図２は、計算機Ｃのハードウェア構成例を示すブロック図である。 Next, a hardware configuration of the computer C configuring each device of the data analysis system 1 will be described.
FIG. 2 is a block diagram illustrating a hardware configuration example of the computer C.
　計算機Ｃは、いわゆるコンピュータとして用いられるハードウェアである。計算機Ｃは、バスＣ４にそれぞれ接続されたＣＰＵ（Central Processing Unit：中央処理装置）Ｃ１、ＲＯＭ（Read Only Memory）Ｃ２、ＲＡＭ（Random Access Memory）Ｃ３を備える。さらに、計算機Ｃは、表示部Ｃ５、操作部Ｃ６、不揮発性ストレージＣ７、ネットワークインターフェイスＣ８を備える。 The computer C is hardware used as a so-called computer. The computer C includes a CPU (Central Processing Unit) C1, a ROM (Read Only Memory) C2, and a RAM (Random Access Memory) C3 respectively connected to the bus C4. Further, the computer C includes a display unit C5, an operation unit C6, a nonvolatile storage C7, and a network interface C8.
　ＣＰＵ Ｃ１は、本実施の形態例に係る各機能を実現するソフトウェアのプログラムコードをＲＯＭＣ２から読み出して実行する。ＲＡＭ Ｃ３には、演算処理の途中に発生した変数やパラメーター等が一時的に書き込まれる。表示部Ｃ５は、例えば、液晶ディスプレイモニタであり、計算機Ｃで行われる処理の結果等をユーザに表示する。操作部Ｃ６には、例えば、キーボード、マウス等が用いられ、ユーザが所定の操作入力、指示を行うことが可能である。保守装置２、データ収録装置６、解析装置７の使用者は、装置毎に設定される所定のユーザーインターフェイスに基づく画面を表示部Ｃ５に表示し、操作部Ｃ６により各使用者による操作入力を受け付ける。 The CPU C1 reads out the program code of software that realizes each function according to the present embodiment from the ROMC2, and executes it. In the RAM C3, variables, parameters, and the like generated during the arithmetic processing are temporarily written. The display unit C5 is, for example, a liquid crystal display monitor, and displays a result of processing performed by the computer C to the user. For example, a keyboard, a mouse, or the like is used for the operation unit C6, and a user can perform predetermined operation inputs and instructions. A user of the maintenance device 2, the data recording device 6, and the analysis device 7 displays a screen based on a predetermined user interface set for each device on the display unit C5, and receives an operation input from each user through the operation unit C6. .
　不揮発性ストレージＣ７としては、例えば、ＨＤＤ（Hard disk drive）、ＳＳＤ（Solid State Drive）、フレキシブルディスク、光ディスク、光磁気ディスク、ＣＤ－ＲＯＭ、ＣＤ－Ｒ、磁気テープ、不揮発性のメモリ等が用いられる。この不揮発性ストレージＣ７には、ＯＳ（Operating System）、各種のパラメーターの他に、計算機Ｃを機能させるためのプログラムが記録されている。例えば、収録装置用データベース６０、解析装置用データベース７０は、不揮発性ストレージＣ７に構成される。なお、保守装置２が不揮発性ストレージＣ７に収録項目を構成してもよい。
　ネットワークインターフェイスＣ８には、例えば、ＮＩＣ（Network Interface Card）等が用いられる。各装置は、ネットワークインターフェイスＣ８を通じ、計測監視ネットワークＮ、専用の伝送路等を介して様々なデータを送受信することが可能である。 As the nonvolatile storage C7, for example, a hard disk drive (HDD), a solid state drive (SSD), a flexible disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory, or the like is used. It is done. In addition to the OS (Operating System) and various parameters, a program for causing the computer C to function is recorded in the nonvolatile storage C7. For example, the recording device database 60 and the analysis device database 70 are configured in the nonvolatile storage C7. The maintenance device 2 may configure the recording items in the nonvolatile storage C7.
As the network interface C8, for example, a NIC (Network Interface Card) or the like is used. Each device can transmit and receive various data via the network interface C8 via the measurement monitoring network N, a dedicated transmission line, and the like.
＜収録項目の構成例＞
　次に、収録項目の構成例について説明する。
　図３は、収録項目の第１の構成例を示す説明図である。
　収録項目の第１の構成例に示すように、保守装置２、データ収録装置６、解析装置７は、プラント状態情報の取得時刻毎にプラント状態情報を登録可能な各収録項目を保有する。計測項目Ａのプラント状態情報格納部には、プラント状態情報がテストＡであることが時系列値の取得時刻毎に収録項目に格納される。 <Configuration example of recorded items>
Next, a configuration example of recorded items will be described.
FIG. 3 is an explanatory diagram showing a first configuration example of recorded items.
As shown in the first configuration example of recorded items, the maintenance device 2, the data recording device 6, and the analysis device 7 have each recorded item that can register plant state information at each acquisition time of the plant state information. In the plant state information storage unit of the measurement item A, the fact that the plant state information is the test A is stored in the recorded item for each time series value acquisition time.
　図４は、収録項目の第２の構成例を示す説明図である。
　収録項目の第２の構成例においても、保守装置２、データ収録装置６、解析装置７は、プラント状態情報の取得時刻毎にプラント状態情報を登録可能な各収録項目を保有する。
ただし、図４では、計測項目Ａ～Ｃに示すように複数の計測項目のロジック演算値を時系列値として格納している。このため、図３に示したように計測項目毎にテストＡが格納されるのではなく、テストＡが行われた時間帯における複数の計測項目のプラント状態情報がまとめてテストＡとして収録項目に格納される。 FIG. 4 is an explanatory diagram showing a second configuration example of recorded items.
Also in the second configuration example of the recording items, the maintenance device 2, the data recording device 6, and the analysis device 7 have respective recording items that can register the plant state information at each acquisition time of the plant state information.
However, in FIG. 4, as shown in the measurement items A to C, logic operation values of a plurality of measurement items are stored as time series values. For this reason, test A is not stored for each measurement item as shown in FIG. 3, but the plant state information of a plurality of measurement items in the time zone in which test A is performed is collectively recorded as test A. Stored.
　保守装置２、データ収録装置６及び解析装置７は、プラント状態情報の単位毎にプラント状態情報を保有する。保守装置２、データ収録装置６及び解析装置７は、例えば、プラント状態情報がテストＡである場合に、テストＡが発生した時間帯を示す時間帯情報と、テストＡに用いられる信号識別子群とをまとめて収録項目に保有する。 The maintenance device 2, the data recording device 6, and the analysis device 7 hold plant state information for each unit of plant state information. For example, when the plant state information is test A, the maintenance device 2, the data recording device 6, and the analysis device 7 include time zone information indicating a time zone in which the test A occurs, and a signal identifier group used for the test A Are collected and recorded.
　なお、収録項目には、プラントの設備保全等が発生した時刻にプラント状態情報を保有してもよい。例えば、ボイラーから得られる計測信号の値が、ボイラーの掃除前後で変化する場合がある。すなわちボイラーの掃除前はボイラーの効率性が低いが、ボイラーの掃除後はボイラーの効率性が高まる。このような場合には、ボイラーの掃除前の収録データと、掃除後の収録データとは連続性がなく、掃除前後にまたがる収録データを解析対象として使えない。このため、収録項目には、プラントの設備保全に関係する収録データの収集条件が、設備保全が発生した前後で変化したことを示す情報を含めて保有する。 It should be noted that the recorded items may contain plant state information at the time when plant maintenance or the like occurs. For example, the value of the measurement signal obtained from the boiler may change before and after cleaning the boiler. That is, the efficiency of the boiler is low before the boiler is cleaned, but the efficiency of the boiler is increased after the boiler is cleaned. In such a case, the recording data before cleaning of the boiler and the recording data after cleaning are not continuous, and the recording data extending before and after cleaning cannot be used as an analysis target. For this reason, the recorded items include information indicating that the collected data collection conditions related to plant equipment maintenance have changed before and after the occurrence of equipment maintenance.
　また、解析装置７の収録項目にプラント状態情報を登録する方法は複数ある。例えば、保守装置２の使用者が、解析装置７の収録項目に対して手動で入力して登録する方法、解析装置７が、プラント状態情報を収録する他の装置からプラント状態情報を自動で読み込み、収録項目に登録する方法がある。また、解析装置７が、既登録の情報（例えば、信号識別子）を自動で読み込み、収録項目に登録する方法がある。 In addition, there are a plurality of methods for registering plant state information in the recording items of the analysis device 7. For example, a method in which the user of the maintenance device 2 manually inputs and registers the recording items of the analysis device 7, and the analysis device 7 automatically reads the plant state information from other devices that record the plant state information. There is a method of registering the recorded items. Further, there is a method in which the analysis device 7 automatically reads already registered information (for example, a signal identifier) and registers it in a recording item.
＜保守装置が解析装置からプラント状態情報を取得する例＞
　図５は、保守装置２が既登録の情報を利用して、解析装置７からプラント状態情報を取得する処理の例を示す説明図である。 <Example where maintenance device acquires plant status information from analysis device>
FIG. 5 is an explanatory diagram illustrating an example of a process in which the maintenance device 2 acquires plant state information from the analysis device 7 using already registered information.
　前提として、保守装置２が過去にプラントに対してテストＡを実施した際における、テストＡの収録項目が解析装置用データベース７０に登録されているとする。テストＡの収録項目は、保守装置２の使用者が手動で収録データを入力する方法、又は他の装置が収録した情報を保守装置２が自動で読み込む方法等により解析装置用データベース７０に登録されている。図５に示す解析装置用データベース７０には、信号識別子を列とし、信号の取得時刻を行とする表が示されている。この表より、例えば、１１：００～１２：００の間は、信号識別子ＩＤ－Ａ、ＩＤ－Ｂ、ＩＤ－Ｃ、ＩＤ－Ｄ（以下、「信号識別子ＩＤ－Ａ～ＩＤ－Ｄ」と略記する）で識別される特定の信号を出力するプラントのプラント状態がテストＡであることが示される。 As a premise, it is assumed that the recorded items of the test A when the maintenance device 2 has performed the test A on the plant in the past are registered in the analysis device database 70. The recorded items of test A are registered in the analysis device database 70 by a method in which a user of the maintenance device 2 manually inputs recorded data or a method in which the maintenance device 2 automatically reads information recorded by other devices. ing. The analysis device database 70 shown in FIG. 5 shows a table with signal identifiers as columns and signal acquisition times as rows. From this table, for example, between 11:00 and 12:00, signal identifiers ID-A, ID-B, ID-C, ID-D (hereinafter abbreviated as “signal identifiers ID-A to ID-D”). It is indicated that the plant state of the plant that outputs the specific signal identified in (1) is test A.
　保守装置２がプラントにテストＡを実施する際、保守装置２の使用者は、テストＡに用いられるプラントが出力する信号の信号識別子として、テストＡをプラント状態情報として含むＩＤ－Ａ～ＩＤ－Ｄの組合せ情報を保守装置２に予め登録しておく。そして、保守装置２は、解析装置７のプラント状態検索部７２に信号識別子の組合せ情報を送信する。信号識別子の組合せ情報には、例えば、信号識別子ＩＤ－Ａ～ＩＤ－Ｄが含まれる。信号識別子の組合せ情報は、保守装置２の使用者が収録項目毎に個別に登録してもよく、予めグループとして登録した信号識別子ＩＤ－Ａ～ＩＤ－Ｄをまとめて登録してもよい。 When the maintenance device 2 performs the test A on the plant, the user of the maintenance device 2 uses ID-A to ID- including the test A as plant state information as a signal identifier of a signal output from the plant used for the test A. D combination information is registered in the maintenance device 2 in advance. The maintenance device 2 transmits the combination information of the signal identifiers to the plant state search unit 72 of the analysis device 7. The signal identifier combination information includes, for example, signal identifiers ID-A to ID-D. The signal identifier combination information may be individually registered by the user of the maintenance device 2 for each recording item, or may be registered together as signal identifiers ID-A to ID-D registered in advance as a group.
　解析装置７は、保守装置２から信号識別子の組合せ情報を受信する。そして、解析装置７が備えるプラント状態検索部７２は、信号識別子の組合せ情報に基づいて、解析装置用データベース７０から、同一の時刻において信号識別子ＩＤ－Ａ～ＩＤ－Ｄに共通するプラント状態情報を検索する。図５に示すように、プラント状態検索部７２は、プラント状態情報として「テストＡ」を取得する。 The analysis device 7 receives the signal identifier combination information from the maintenance device 2. Then, the plant state search unit 72 included in the analysis device 7 obtains plant state information common to the signal identifiers ID-A to ID-D from the analysis device database 70 at the same time based on the combination information of the signal identifiers. Search for. As illustrated in FIG. 5, the plant state search unit 72 acquires “test A” as plant state information.
　そして、解析装置７は、プラント状態検索部７２が取得した「テストＡ」を保守装置２に送信する。この結果、保守装置２は、信号識別子ＩＤ－Ａ～ＩＤ－Ｄに対応するプラント状態情報として「テストＡ」を取得することができる。 Then, the analysis device 7 transmits “test A” acquired by the plant state search unit 72 to the maintenance device 2. As a result, the maintenance apparatus 2 can acquire “test A” as the plant state information corresponding to the signal identifiers ID-A to ID-D.
　なお、解析装置７が解析装置用データベース７０に故障原因情報を収録する形態と登録方法は、それぞれ保守装置２がプラント状態情報を収録する形態、登録方法と同一としてよい。
　また、解析装置７が解析装置用データベース７０に関係信号情報を収録する形態は、収録項目７１毎に関係信号情報を登録できる属性として保有する形態としてよい。また、解析装置７が解析装置用データベース７０に関係信号情報を登録する方法は、保守装置２がプラント状態情報を登録する方法と同一としてよい。 The form in which the analysis device 7 records the failure cause information in the analysis device database 70 and the registration method may be the same as the form in which the maintenance device 2 records the plant state information and the registration method, respectively.
Moreover, the form in which the analysis apparatus 7 records the related signal information in the analysis apparatus database 70 may be a form in which the related signal information is stored for each recording item 71 as an attribute that can be registered. The method in which the analysis device 7 registers the related signal information in the analysis device database 70 may be the same as the method in which the maintenance device 2 registers the plant state information.
＜解析装置が収録項目に収録データを登録する例＞
　図６は、解析装置７の使用者が解析に必要となる信号を選択して解析装置用データベース７０に収録データとして登録する処理の例を示す説明図である。 <Example of recording data registered in the recording item by the analyzer>
FIG. 6 is an explanatory diagram illustrating an example of processing in which a user of the analysis device 7 selects a signal necessary for analysis and registers it as recorded data in the analysis device database 70.
　解析装置７の使用者が、保守装置２又はデータ収録装置６が保有する収録項目を解析装置用データベース７０に登録するためには、登録対象である計測項目やロジック演算値の制御ロジック２１上の所在について知っていることが必要である。従来、解析装置７の使用者は、収録項目に信号を登録する際、保守装置２にて収録項目に収録される信号識別子、又は保守装置２と解析装置７に共通する信号識別子を調査し、解析装置７を操作して信号識別子を入力していた。 In order for the user of the analysis device 7 to register the recording items held by the maintenance device 2 or the data recording device 6 in the analysis device database 70, the measurement items and logic operation values on the control logic 21 are registered. It is necessary to know whereabouts. Conventionally, when the user of the analysis device 7 registers a signal in a recording item, the user checks the signal identifier recorded in the recording item by the maintenance device 2 or the signal identifier common to the maintenance device 2 and the analysis device 7. The signal identifier was input by operating the analysis device 7.
　しかし、本実施の形態例により、解析装置７の使用者（主に設備の保守管理者）は、例えば、保守装置２が管理する制御ロジック２１から収録データの解析に必要な信号を取得可能な箇所を選択することができる。例えば、制御ロジック２１には、入出力一覧２２、演算ブロック出力端子２３、ロジックシート間接続端子２４等が含まれる。解析装置７の使用者により選択された箇所の信号は、図１に示した計測監視ネットワークＮ、又は保守装置２と解析装置７を直接接続する伝送路（不図示）を経由して解析装置７の収録項目７１に登録される。 However, according to the present embodiment, a user of the analysis device 7 (mainly a facility maintenance manager) can obtain a signal necessary for analyzing recorded data from the control logic 21 managed by the maintenance device 2, for example. A location can be selected. For example, the control logic 21 includes an input / output list 22, an operation block output terminal 23, a logic sheet connection terminal 24, and the like. The signal at the location selected by the user of the analysis device 7 is transmitted through the measurement / monitoring network N shown in FIG. 1 or a transmission line (not shown) directly connecting the maintenance device 2 and the analysis device 7. Are registered in the recording item 71.
　このように解析装置７の使用者は、使い慣れた解析装置７に予め用意されたユーザーインターフェイスを使えるので、データ収録装置６の収録項目を解析装置用データベース７０に登録することが容易となる。このため、解析装置７の使用者は、保守装置２の作業員等により設定された収録項目を解析に流用できる。 Thus, since the user of the analysis device 7 can use the user interface prepared in advance for the analysis device 7 that is familiar to him / her, it becomes easy to register the recording items of the data recording device 6 in the analysis device database 70. For this reason, the user of the analysis device 7 can divert the recording items set by the worker of the maintenance device 2 to the analysis.
＜故障予兆を検出するための解析処理の例＞
　従来、保守装置２を使用するプラントの保守員や調整作業員は、プラント試運転の調整、制御プログラムの動作確認等を行うために、保守装置２又はデータ収録装置６に収録項目を登録していた。そして、プラント試運転は、制御対象機器９の据付け後に行われていた。このプラント試運転の合否の判定条件として、計測値や演算値に対して設定された閾値や、機器の起動状態若しくは停止状態、又は機器の起動タイミング若しくは停止タイミングが用いられていた。そして、従来の保守員や調整作業員は、プラント試運転が終了した後に、保守装置２又はデータ収録装置６に登録した収録データを廃棄していた。 <Example of analysis processing for detecting failure signs>
Conventionally, maintenance personnel and adjustment workers of a plant that uses the maintenance device 2 have registered recording items in the maintenance device 2 or the data recording device 6 in order to adjust plant trial operation, check operation of the control program, and the like. . The plant trial operation was performed after the installation of the control target device 9. As a determination condition for the success or failure of the plant trial operation, a threshold set for a measured value or a calculated value, a device activation state or a stop state, or a device activation timing or a stop timing are used. And the conventional maintenance worker and the adjustment worker discarded the recorded data registered in the maintenance device 2 or the data recording device 6 after the plant trial operation was completed.
　しかし、プラントの保守員や調整作業員がプラント試運転を行ったり、プラントの保守を行ったりする際、プラントには様々なプラント状態が発生する。このため、本実施の形態例に係る解析装置７は、プラントの保守員や調整作業員によって保守装置２で登録される収録項目の収録データを、解析装置用データベース７０にも保存する。これにより解析装置７は、従来よりも多種多様な収録データを収録装置用データベース６０から収集し、収集した収録データを様々な解析に用いることができると考えられる。 However, when plant maintenance personnel or adjustment workers perform plant test operations or perform plant maintenance, various plant states occur in the plant. For this reason, the analysis device 7 according to the present embodiment also saves the recorded data of the recorded items registered in the maintenance device 2 by the plant maintenance personnel and the adjustment workers in the analysis device database 70. As a result, it is considered that the analysis device 7 can collect a wider variety of recorded data than the recording device database 60 and use the collected recorded data for various analyses.
　ここでは、解析装置７が特定のプラント状態が発生したときの収録データを取得する処理について説明する。
　図７は、解析装置７が故障予兆解析対象データを用いて、故障原因を取得する例を示す説明図である。 Here, the process in which the analysis apparatus 7 acquires recorded data when a specific plant state occurs will be described.
FIG. 7 is an explanatory diagram illustrating an example in which the analysis device 7 acquires a failure cause by using the failure sign analysis target data.
　解析装置７が機器の故障予兆の解析処理の対象とする故障予兆解析対象データ７３は、解析対象となる時間帯に収集された複数の収録データから構成される。故障予兆解析対象データ７３は、解析装置用データベース７０に格納される収録データの一部であり、現在、解析装置７がデータ収録装置６から取得した収録データＡを含む。この収録データＡのプラント状態は、「ヒートソーク」である。ここで、解析装置７は、故障予兆を検出するための解析処理を行う上で、解析装置用データベース７０に収録データを格納した日時と同じプラント状態であった過去の日時の収録データが必要となる。 The failure sign analysis target data 73, which is the target of the device failure sign analysis process by the analysis device 7, is composed of a plurality of recorded data collected in the time zone to be analyzed. The failure sign analysis target data 73 is a part of recorded data stored in the analysis device database 70, and currently includes recorded data A acquired by the analysis device 7 from the data recording device 6. The plant state of the recorded data A is “heat soak”. Here, the analysis device 7 needs the recorded data of the past date and time in the same plant state as the date and time when the recorded data is stored in the analysis device database 70 in performing the analysis process for detecting the failure sign. Become.
　このため、プラント状態検索部７２は、解析対象となる収録データが持つプラント状態情報格納部に格納されたプラントのイベント又は状態を故障予兆解析対象データ７３から読み込む。そして、プラント状態検索部７２は、読み込んだプラント状態情報の文字列「ヒートソーク」により解析装置用データベース７０から、プラント状態が「ヒートソーク」である過去の収録データを検索する。そして、プラント状態検索部７２は、解析装置用データベース７０から抽出した「ヒートソーク」の収録データを解析装置７の使用者に提供する。これにより、解析装置７の使用者は、過去に「ヒートソーク」が発生したときの日時等を把握することができる。 Therefore, the plant state search unit 72 reads the event or state of the plant stored in the plant state information storage unit included in the recorded data to be analyzed from the failure sign analysis target data 73. Then, the plant state search unit 72 searches past recorded data in which the plant state is “heat soak” from the analysis device database 70 by using the character string “heat soak” of the read plant state information. Then, the plant state search unit 72 provides the recorded data of “heat soak” extracted from the analysis device database 70 to the user of the analysis device 7. Thereby, the user of the analysis apparatus 7 can grasp the date and time when “heat soak” has occurred in the past.
　このように解析装置用データベース７０には、プラント試運転や動作確認試験時の収録データが保存される。そして、解析装置７は、解析装置用データベース７０に保存される収録データを、将来実施される予定である同一の試運転や動作確認試験時に取得される収録データと比較し、解析装置７が制御対象機器９の故障予兆を検出する際の解析処理に用いることができる。 In this way, recorded data at the time of plant trial operation and operation check test is stored in the analysis device database 70. Then, the analysis device 7 compares the recorded data stored in the analysis device database 70 with the recorded data acquired in the same trial operation or operation check test that is scheduled to be performed in the future, and the analysis device 7 is controlled. It can be used for analysis processing when a failure sign of the device 9 is detected.
　従来、解析装置７の使用者は、運転状態作業実績等の解析装置７によらない運転記録から、解析対象となるプラント状態と合致する時間帯を調査し、この時間帯の収録データをデータ収録装置６又は保守装置２から取り出していた。
　しかし、本実施の形態例に係る解析装置７の使用者は、解析対象となるプラント状態と合致する時間帯を調査する作業を削減し、故障予兆を検出するための解析処理を行う上で必要な収録データを容易に得ることができる。 Conventionally, the user of the analysis device 7 investigates the time zone that matches the plant state to be analyzed from the operation record not using the analysis device 7 such as the operation status work results, and records the data recorded in this time zone. It was taken out from the device 6 or the maintenance device 2.
However, the user of the analysis device 7 according to the present embodiment is necessary to reduce the work for investigating the time zone that matches the plant state to be analyzed and to perform analysis processing for detecting a failure sign. Recording data can be easily obtained.
＜予定工程表に基づいて実績工程表を作成する処理の例＞
　次に、工程表作成管理装置４が作業の実績工程表４２を作成する処理について説明する。
　図８は、工程表作成管理装置４が実績工程表４２を作成する処理の例を示す説明図である。 <Example of processing to create a performance schedule based on the scheduled schedule>
Next, a process in which the process chart creation management device 4 creates the work result process chart 42 will be described.
FIG. 8 is an explanatory diagram showing an example of processing in which the process chart creation management device 4 creates the actual process chart 42.
　工程表作成管理装置４は、プラント試運転や定期点検等の作業を計画的かつ効率的に実施するために、試験や工事等の予定工程表４１を事前に作成し、保有している。この予定工程表４１には、作業の予定日時と作業項目等が含まれる。作業項目には、プラント状態情報が含まれる。プラント試運転を行う工程表作成管理装置４の使用者は、工程表作成管理装置４を操作して、データ収録装置６の収録項目６１に登録する項目を含む予定工程表４１を選択する。 The process schedule creation management device 4 creates and holds a scheduled process schedule 41 for tests and constructions in advance in order to carry out operations such as plant trial operation and periodic inspection systematically and efficiently. The scheduled process table 41 includes scheduled work dates and work items. The work item includes plant state information. The user of the process schedule creation management device 4 that performs the plant trial operation operates the process schedule creation management apparatus 4 to select the scheduled process schedule 41 including items to be registered in the recording items 61 of the data recording device 6.
　作業員により選択された予定工程表４１は、計測監視ネットワークＮを介して解析装置７に送信される。そして、解析装置７は、工程表作成管理装置４の予定工程表４１に付与されたプラント状態情報を、解析装置７のプラント状態情報として取り込む。そして、解析装置７の使用者は、解析装置用データベース７０に格納されている収録項目７１の中から、予定工程表４１に含まれる各作業項目をキーとして検索するための操作を行う。 The scheduled process table 41 selected by the worker is transmitted to the analysis device 7 via the measurement monitoring network N. Then, the analysis device 7 takes in the plant state information given to the scheduled process table 41 of the process table creation management device 4 as plant state information of the analysis device 7. Then, the user of the analysis device 7 performs an operation for searching for each work item included in the scheduled process table 41 from the recorded items 71 stored in the analysis device database 70.
　この操作により、解析装置７のプラント状態検索部７２は、予定工程表４１に含まれる作業に該当するプラント状態情報として、作業項目又は作業日時をキーとして解析装置用データベース７０を検索する。このとき、キーとしてテストＢが用いられる。そして、プラント状態検索部７２は、プラント状態情報にキーが一致する計測項目Ａ～Ｃと収録データを解析装置用データベース７０から取得する。その後、解析装置７は、取得した計測項目Ａ～Ｃに対応する信号識別子と収録データを共にデータ収録装置６に送信する。 By this operation, the plant state search unit 72 of the analysis device 7 searches the analysis device database 70 as the plant state information corresponding to the work included in the scheduled process table 41 using the work item or work date as a key. At this time, test B is used as a key. Then, the plant state search unit 72 acquires the measurement items A to C and the recorded data whose keys match the plant state information from the analysis device database 70. Thereafter, the analysis device 7 transmits to the data recording device 6 both the signal identifier and the recorded data corresponding to the acquired measurement items A to C.
　データ収録装置６は、解析装置７から受信した計測項目Ａ～Ｃに対応するプラント状態情報をデータ収録装置６の収録項目６１に登録する。データ収録装置６の使用者は、データ収録装置６を操作して、プラント状態情報がテストＢである収録項目６１を収録装置用データベース６０に登録する必要がない。このため、データ収録装置６の使用者は、予定工程表４１に含まれる各作業の実施時に必要であった収録項目６１の登録作業量を軽減できる。その後、データ収録装置６は、プラント状態検索部７２によって検索されたプラント状態情報に対応して解析装置用データベース７０に収録される収録データを工程表作成管理装置４に送信する。 The data recording device 6 registers the plant state information corresponding to the measurement items A to C received from the analysis device 7 in the recording item 61 of the data recording device 6. The user of the data recording device 6 does not need to operate the data recording device 6 to register the recording item 61 whose plant state information is the test B in the recording device database 60. For this reason, the user of the data recording device 6 can reduce the registration work amount of the recording item 61 that was necessary when each work included in the scheduled process table 41 was performed. Thereafter, the data recording device 6 transmits the recorded data recorded in the analysis device database 70 to the process table creation management device 4 corresponding to the plant state information searched by the plant state searching unit 72.
　また、解析装置７は、工程表作成管理装置４から取得したテストＢを作業項目として含む収録項目７１を登録する。このため、解析装置７の使用者は、収録項目７１の登録をするための作業量を軽減することもできる。 Also, the analysis device 7 registers the recording item 71 including the test B acquired from the process chart creation management device 4 as a work item. For this reason, the user of the analysis apparatus 7 can also reduce the work amount for registering the recording item 71.
　そして、解析装置７は、データ収録装置６を通じて、保守装置２がプラント試運転や定期点検等における試験や工事等の作業を実施した時に、作業項目の実績を工程表作成管理装置４に提供する。工程表作成管理装置４は、データ収録装置６から渡された収録データに基づいて実績工程表４２を作成する。例えば、データ収録装置６は、テストＢが完了した後、テストＢの実施日時等を含む収録データを工程表作成管理装置４に送信する。工程表作成管理装置４は、テストＢの実施日時等を含む収録データを元にして、テストＢの作業項目に対応する実施日時等を含む実績工程表４２を作成する。そして、工程表作成管理装置４は、実績工程表４２を用いてテストＢの実績工程の管理を容易に行うことができる。また、工程表作成管理装置４は、予定工程表４１と実績工程表４２を比較して、作業の予定工程と実績工程の偏差を管理することもできる。 Then, the analysis device 7 provides the process table creation management device 4 with the results of the work items when the maintenance device 2 performs the work such as the test and the construction in the plant trial operation and the periodic inspection through the data recording device 6. The process chart creation management device 4 creates an actual process table 42 based on the recorded data passed from the data recording device 6. For example, after the test B is completed, the data recording device 6 transmits recorded data including the execution date and time of the test B to the process chart creation management device 4. The process table creation management device 4 creates a performance process table 42 including the execution date and time corresponding to the work item of the test B based on the recorded data including the test B execution date and time. Then, the process chart creation management device 4 can easily manage the performance process of the test B using the performance process table 42. Further, the process table creation management device 4 can also manage the deviation between the scheduled process and the actual process of the work by comparing the scheduled process table 41 and the actual process table 42.
＜故障原因を特定する解析処理の例＞
　次に、現在発生した制御対象機器９の故障原因を、過去に発生した制御対象機器９の故障原因から特定する処理について説明する。
　図９は、解析装置７が制御対象機器９の故障原因を特定する解析処理の例を示す説明図である。 <Example of analysis process to identify the cause of failure>
Next, a process for identifying the cause of the failure of the control target device 9 that has currently occurred from the cause of the failure of the control target device 9 that has occurred in the past will be described.
FIG. 9 is an explanatory diagram illustrating an example of analysis processing in which the analysis device 7 identifies the cause of failure of the control target device 9.
　通常、計測監視制御装置３は、制御対象機器９の故障又は異常（以下、「故障」と略記する）を監視しており、制御対象機器９の故障を検知した場合には運転監視端末５の警報画面等に異常発生時刻と共に警報を発報する。プラントの保守員は、運転監視端末５に発報された警報や、保守装置２に格納されている制御ロジック２１のモニター機能等により故障個所を特定した後、故障に関連する収録データを用いて故障の原因を特定する。 Usually, the measurement monitoring control device 3 monitors a failure or abnormality (hereinafter abbreviated as “failure”) of the control target device 9, and when a failure of the control target device 9 is detected, the operation monitoring terminal 5 An alarm is issued on the alarm screen together with the time of occurrence of the abnormality. The maintenance staff of the plant uses the recorded data related to the failure after identifying the failure location by the alarm issued to the operation monitoring terminal 5 or the monitoring function of the control logic 21 stored in the maintenance device 2. Identify the cause of the failure.
　そして、データ収録装置６は、プラントの運転における故障発生の都度、故障の原因となった制御対象機器９の計測項目に対応する収録データの故障原因情報格納部に、故障個所と発生時刻を格納する。例えば、運転監視端末５の警報画面にＡポンプ故障が発報されたとする。このＡポンプ故障の原因が計測項目Ａにある場合、計測監視制御装置３は、解析装置７が保有する計測項目Ａの収録データの故障原因情報格納部に、故障個所情報（Ａポンプ故障）と、Ａポンプ故障の発生時刻とを含む情報を格納する。 The data recording device 6 stores the failure location and time of occurrence in the failure cause information storage section of the recorded data corresponding to the measurement item of the control target device 9 that caused the failure every time a failure occurs in the operation of the plant. To do. For example, it is assumed that an A pump failure is reported on the alarm screen of the operation monitoring terminal 5. When the cause of this A pump failure is in the measurement item A, the measurement monitoring control device 3 stores failure location information (A pump failure) in the failure cause information storage part of the recorded data of the measurement item A held by the analysis device 7. The information including the occurrence time of the A pump failure is stored.
　解析装置７が故障原因を特定するための解析処理を行う際には、解析対象としている収録項目（故障の発生個所）の故障原因情報格納部を参照する。そして、解析装置７は、運転監視端末５により警報された故障と同一又は類似の過去に発生した故障の故障原因を故障原因情報格納部に格納された故障原因情報から特定する。そして、解析装置７は、表示部Ｃ５に特定した故障原因を表示する。解析装置７の使用者は、表示部Ｃ５の表示内容に基づいて、過去に発生した故障の発生日時と、故障の原因となった計測項目を認識することが可能となる。
　また、解析対象が信号識別子ＩＤ－Ａである場合、解析装置７は、計測項目Ａの収録データの故障原因情報格納部を参照して、過去に計測項目ＡがＡポンプ故障の原因であったことを認識することも可能である。 When the analysis device 7 performs an analysis process for specifying the cause of the failure, the failure cause information storage unit of the recording item (the location where the failure occurs) to be analyzed is referred to. And the analysis apparatus 7 specifies the failure cause of the failure which occurred in the past which is the same as or similar to the failure warned by the operation monitoring terminal 5 from the failure cause information stored in the failure cause information storage unit. And the analysis apparatus 7 displays the failure cause specified on the display part C5. The user of the analysis device 7 can recognize the occurrence date and time of the failure that has occurred in the past and the measurement item that caused the failure based on the display content of the display unit C5.
When the analysis target is the signal identifier ID-A, the analysis device 7 refers to the failure cause information storage unit of the recorded data of the measurement item A, and the measurement item A has caused the A pump failure in the past. It is also possible to recognize this.
　従来は、過去に発生した故障の原因を解析装置７とは別個に管理していた。そして、データ収録装置６の使用者は、制御対象機器９に故障が発生する度に、発生した故障と同一又は類似した原因がないかを調査するために、データ収録装置６の管理記録を参照していた。このため、運転監視端末５の警報画面等に発報された故障の原因を特定するためには多くの時間を要していた。 Conventionally, the causes of failures that occurred in the past have been managed separately from the analysis device 7. The user of the data recording device 6 refers to the management record of the data recording device 6 in order to investigate whether there is a cause that is the same as or similar to the failure that has occurred each time a failure occurs in the controlled device 9. Was. For this reason, it took a lot of time to identify the cause of the failure reported on the alarm screen of the operation monitoring terminal 5 or the like.
　しかし、本実施の形態例によれば、解析装置７の使用者は、使い慣れた解析装置７のユーザーインターフェイスを使って故障原因を特定するための解析処理を実行し、過去に発生した故障の発生日時と、故障の原因となった計測項目を収録項目から得ることができる。このため、解析装置７の使用者がデータ収録装置６の管理記録を参照する作業を低減することができる。また、解析装置７の使用者は、プラント運転又は保守経験に基づく知識や、プラントの配管、制御対象機器９、センサー構成等といった保守員が有すべき業務知識を持たなくても必要な解析処理を行うことができる。 However, according to the present embodiment, the user of the analysis device 7 executes an analysis process for identifying the cause of the failure using the user interface of the analysis device 7 that is familiar to the user, and the occurrence of a failure that has occurred in the past. The date and time and the measurement item that caused the failure can be obtained from the recorded items. For this reason, the operation | work which the user of the analyzer 7 refers to the management record of the data recording device 6 can be reduced. Further, the user of the analysis device 7 can perform the necessary analysis processing even if he / she does not have knowledge on the basis of plant operation or maintenance experience, nor business knowledge that the maintenance staff should have such as plant piping, control target equipment 9 and sensor configuration. It can be performed.
＜プラント状態の判定処理の例＞
　次に、故障予兆を検出するための解析処理等において、解析対象のプラント状態が正常状態にあるか異常状態にあるかの判定基準を作成する方法について説明する。
　図１０は、比較用サンプルデータを作成する処理の例を示す説明図である。 <Example of plant state determination processing>
Next, a description will be given of a method for creating a criterion for determining whether the analysis target plant state is in a normal state or an abnormal state in an analysis process or the like for detecting a failure sign.
FIG. 10 is an explanatory diagram illustrating an example of processing for creating comparison sample data.
　保守装置２は、プラントに何らかのイベント又は警報が発生した時のプラント状態情報を収録データに保持している。
　解析装置７は、上述したプラント状態検索部７２の他に、比較用サンプルデータ作成部７４とデータ比較部７５を備える。
　プラント状態検索部７２は、保守装置２から通知されたイベントに対応する過去のプラント状態情報を解析装置用データベース７０から検索し、過去のプラント状態情報を含む収録データを取得する。 The maintenance device 2 holds the plant state information in the recorded data when an event or warning occurs in the plant.
The analysis device 7 includes a comparison sample data creation unit 74 and a data comparison unit 75 in addition to the plant state search unit 72 described above.
The plant state search unit 72 searches the analysis device database 70 for past plant state information corresponding to the event notified from the maintenance device 2 and acquires recorded data including the past plant state information.
　比較用サンプルデータ作成部７４は、プラント状態検索部７２により検索された過去のプラント状態情報を含む収録データに基づいて比較用サンプルデータを作成する。例えば、比較用サンプルデータ作成部７４は、過去に発生したヒートソーク時の収録データを用いて比較用サンプルデータを作成する。このとき、比較用サンプルデータ作成部７４は、過去のヒートソークが発生したときの各プロセスステップにおける収録データの最小値と最大値の範囲を収録項目毎かつプロセスステップ毎に導出した比較用サンプルデータを作成する。その後、比較用サンプルデータ作成部７４は、解析装置７が格納している収録データの中から、ヒートソーク中の各プロセスステップ時に発生したイベントや警報を収集する。 The comparison sample data creation unit 74 creates comparison sample data based on recorded data including past plant state information searched by the plant state search unit 72. For example, the comparison sample data creation unit 74 creates comparison sample data using data recorded during heat soak that occurred in the past. At this time, the comparison sample data creation unit 74 obtains the comparison sample data derived for each recording item and each process step in the range of the minimum value and the maximum value of the recording data in each process step when the past heat soak has occurred. create. Thereafter, the comparative sample data creation unit 74 collects events and alarms generated at each process step in the heat soak from the recorded data stored in the analysis device 7.
　データ比較部７５は、保守装置２から通知されたプラント状態の収録データと、比較用サンプルデータとを比較した比較結果を出力する。例えば、プラントのヒートソーク時の収録データが解析対象である場合、プラント状態検索部７２は、解析装置用データベース７０に格納している収録データから過去に発生したヒートソーク時の収録データ（「ヒートソーク」のプラント状態情報を持つ収録データ）を読出す。プラント状態検索部７２は、解析装置用データベース７０に収録されている解析対象となるプラント状態情報のレコード数に対応して、複数の収録データを検索してもよい。 The data comparison unit 75 outputs a comparison result obtained by comparing the recorded data of the plant state notified from the maintenance device 2 with the sample data for comparison. For example, when the recording data at the time of heat soaking of the plant is an analysis target, the plant state search unit 72 uses the recording data stored in the analysis device database 70 in the past, and the recording data at the time of heat soaking ("heat soak" Read recorded data with plant status information). The plant state search unit 72 may search for a plurality of recorded data corresponding to the number of records of the plant state information to be analyzed that are recorded in the analysis device database 70.
　そして、データ比較部７５は、解析対象とする収録データのプラントの解析対象機器に関連する計測項目やロジック演算値の収録データを、解析装置７が収集している収録データと比較し、比較結果を出力する。 Then, the data comparison unit 75 compares the recorded data of the measurement items and logic operation values related to the analysis target device of the plant of the recorded data to be analyzed with the recorded data collected by the analysis device 7 and compares the result. Is output.
　このように解析装置７は、プラント（制御対象機器９）にイベントが発生したときのプラント状態情報と、過去のプラント状態情報とを比較して故障予兆を検出するための解析処理や、制御対象機器９の故障原因を特定するための解析処理を行う。このとき、解析装置７は、解析対象のプラント状態が正常状態にあるか異常状態にあるかの判定基準（比較用サンプルデータ）を作成する。そして、解析装置７は、解析対象とする収録データのプラントの解析対象機器に関連する計測項目やロジック演算値の収録データを、解析装置７が収集している収録データと比較している。 In this way, the analysis device 7 compares the plant state information when an event occurs in the plant (control target device 9) and the past plant state information to detect a failure sign, An analysis process for identifying the cause of failure of the device 9 is performed. At this time, the analysis device 7 creates a criterion (comparison sample data) for determining whether the analysis target plant state is in a normal state or an abnormal state. Then, the analysis device 7 compares the recorded data of the measurement items and logic calculation values related to the analysis target device of the plant of the recorded data to be analyzed with the recorded data collected by the analysis device 7.
　ここで、データ比較部７５による比較結果の表示例について説明する。
　図１１は、プロセスステップ毎に導出された比較用サンプルデータの最小値と最大値の範囲と、解析対象とする収録データとの表示例を示す説明図である。図１１は、解析装置７の表示部Ｃ５に表示される画面である。 Here, a display example of the comparison result by the data comparison unit 75 will be described.
FIG. 11 is an explanatory diagram showing a display example of the range of the minimum and maximum values of the sample data for comparison derived for each process step and the recorded data to be analyzed. FIG. 11 is a screen displayed on the display unit C <b> 5 of the analysis device 7.
　図１１に示すようにデータ比較部７５は、比較用サンプルデータの最小値（Ｍｉｎ）と最大値（Ｍａｘ）の範囲と、解析対象とする収録データ７６（実線で表す）とを、収録時刻ｔを合わせて表示部Ｃ５に表示し、照合する。このとき、比較用サンプルデータの最小値と最大値の範囲内にある収録データは正常であり、比較用サンプルデータの最小値と最大値の範囲外にある収録データは異常であると判定できる。例えば、プロセスステップ１における収録データは、比較用サンプルデータの最小値と最大値の範囲内にあるため正常である。一方、プロセスステップ３における収録データ７６は、比較用サンプルデータの最小値と最大値の範囲外にあるため異常である。 As shown in FIG. 11, the data comparison unit 75 displays the range of the minimum value (Min) and the maximum value (Max) of the sample data for comparison and the recorded data 76 (represented by a solid line) to be analyzed as the recording time t. Are displayed on the display unit C5 and collated. At this time, it can be determined that the recorded data within the range between the minimum value and the maximum value of the sample data for comparison is normal, and the recorded data outside the range between the minimum value and the maximum value of the sample data for comparison is abnormal. For example, the recorded data in the process step 1 is normal because it is within the range of the minimum value and the maximum value of the sample data for comparison. On the other hand, the recorded data 76 in the process step 3 is abnormal because it is outside the range of the minimum value and the maximum value of the sample data for comparison.
　このように各時刻において解析対象とする収録データに対して、比較用サンプルデータに設定される許容偏差は、故障予兆を検出するための解析処理にて解析対象のプラント状態が正常状態にあるか異常状態にあるかを判定する基準として使用できる。このため、解析装置７は、計測値や演算値に対して設定された閾値や、制御対象機器９の起動状態若しくは停止状態、又は制御対象機器９の起動タイミング若しくは停止タイミングの設計基準によらないプラントの運転実績に基づいた判定基準を得ることができる。 Thus, for the recorded data to be analyzed at each time, the allowable deviation set in the sample data for comparison is whether the plant state to be analyzed is in the normal state in the analysis process for detecting a failure sign. It can be used as a reference for determining whether there is an abnormal state. For this reason, the analysis device 7 does not depend on the threshold value set for the measurement value or the calculated value, the activation state or the stop state of the control target device 9, or the design criteria for the start timing or stop timing of the control target device 9. It is possible to obtain a criterion based on the operation results of the plant.
　また、解析装置７は、比較用サンプルデータを、収録時刻を合わせて解析対象とする収録データと重ね合わせて表示部Ｃ５に表示し、照合する。これにより、各時刻において解析対象とする収録データ上でイベント又は警報が発生しているか否かを判定することが容易となる。このような照合処理を、故障予兆を検出するための解析処理において解析対象のプラント状態が正常状態にあるか異常状態にあるかを判定するために用いることができる。 Also, the analysis device 7 displays the comparison sample data on the display unit C5 by superimposing the recording data to be analyzed together with the recording data to be analyzed. This makes it easy to determine whether an event or alarm has occurred on the recorded data to be analyzed at each time. Such collation processing can be used to determine whether the plant state to be analyzed is in a normal state or an abnormal state in the analysis processing for detecting a failure sign.
　本実施の形態例によれば、従来はプラント試運転の調整、制御プログラムの動作確認等のプラントの保守員や調整作業員が必要とする期間のみ収録し、用途の終了後に廃棄していた収録データを、解析装置用データベース７０に格納する。そして、解析装置７が過去の収録データを用いて比較用サンプルデータを作成することにより、比較用サンプルデータを、解析対象とする収録データとの比較に用いることができる。これにより、解析対象のプラント状態が正常状態か異常状態かを判定する精度を向上することができる。また、解析対象となるプラント状態の種類（試験中、起動中、通常運転中、停止中等）を拡大することも可能である。 According to the present embodiment, conventionally, recorded data was recorded only for the period required by plant maintenance personnel and adjustment workers, such as adjustment of plant trial operation and operation check of control program, and discarded after the end of use. Is stored in the analysis device database 70. Then, when the analysis device 7 creates comparison sample data using past recorded data, the comparison sample data can be used for comparison with recorded data to be analyzed. Thereby, the precision which determines whether the plant state of analysis object is a normal state or an abnormal state can be improved. It is also possible to expand the types of plant states to be analyzed (during testing, starting, normal operation, stopping, etc.).
　そして、解析装置７が解析装置用データベース７０から読出す収録データ数が複数であり、数が多いほど、プラント状態の正常又は異常を判定する精度を向上することができる。また、プラント状態検索部７２は、プラント状態情報をキーとして解析装置用データベース７０に格納されたプラント状態を効率的に検索することができる。 The number of recorded data that the analysis device 7 reads from the analysis device database 70 is plural, and as the number increases, the accuracy of determining whether the plant state is normal or abnormal can be improved. Moreover, the plant state search part 72 can search efficiently the plant state stored in the database 70 for analyzers by using plant state information as a key.
　なお、解析装置７は、プラント運転の各プロセスにおける実プロセスデータとして、プラント運転中に比較用サンプルデータと収録データを保守装置２に送ってもよい。そして、保守装置２は、プラント運転中に保守装置２の表示部Ｃ５に、比較用サンプルデータと収録データを表示することにより、保守装置２の運転員にガイダンスを与えてもよい。 The analysis device 7 may send comparison sample data and recorded data to the maintenance device 2 during plant operation as actual process data in each process of plant operation. The maintenance device 2 may give guidance to the operator of the maintenance device 2 by displaying the comparative sample data and the recorded data on the display unit C5 of the maintenance device 2 during the plant operation.
　また、比較用サンプルデータは、プラント試運転の結果データとの比較対象とし、プラント試運転の結果の良否を判定する基準の一つとしても使用できる。このため、解析装置７に格納したプラント正常動作時の収録データを、プラント試運転の実施結果として得られるデータとの比較対象として利用することが可能である。 Also, the sample data for comparison can be used as one of the criteria for judging the quality of the result of the plant trial operation as a comparison target with the result data of the plant trial operation. For this reason, the recorded data at the time of normal plant operation stored in the analysis device 7 can be used as a comparison target with data obtained as a result of the plant trial operation.
　また、解析装置７は、例えばプラントのタービンの動翼の交換やスートブロワ伝熱面の煤清掃等、作業の実施によってプラント運転の挙動が異なってくる保守作業に関する情報を、プラント状態情報として収録データに付加する。そして、解析装置７は、保守作業に関する情報毎に比較用サンプルデータを作成する。これにより、解析装置７は、同一のプラント状態で作成した保守作業毎の比較用サンプルデータを表示部Ｃ５に表示することで、偏差の理由となる可能性のある事象を解析装置７の使用者に与えることができる。 In addition, the analysis device 7 records, as plant state information, information related to maintenance work in which the behavior of the plant operation varies depending on the work such as replacement of the turbine blades of the plant and soot cleaning of the soot blower heat transfer surface. Append to Then, the analysis device 7 creates comparative sample data for each piece of information related to maintenance work. As a result, the analysis device 7 displays the comparison sample data for each maintenance operation created in the same plant state on the display unit C5, so that an event that may be the reason for the deviation is displayed on the user of the analysis device 7. Can be given to.
＜テスト毎に収録項目を登録する処理の例＞
　図１２は、保守装置２がテスト毎に収録項目を登録する例を示す説明図である。 <Example of processing for registering recorded items for each test>
FIG. 12 is an explanatory diagram illustrating an example in which the maintenance device 2 registers a recording item for each test.
　ここで、保守装置２の収録項目は、プラント状態によって異なる場合がある。また、解析装置７に複数の収録項目を登録する場合もある。そして、解析装置７は、解析対象とする収録データの収録時におけるプラント状態を識別し、解析対象とする収録データのプラント状態を活用することができる。この一例として、保守装置２がプラント状態情報別にテスト毎に解析装置７からの収録項目を登録する例について説明する。 Here, the recorded items of the maintenance device 2 may differ depending on the plant state. In addition, a plurality of recorded items may be registered in the analysis device 7. And the analysis apparatus 7 can identify the plant state at the time of recording of the recording data made into analysis object, and can utilize the plant state of the recording data made into analysis object. As an example of this, an example will be described in which the maintenance device 2 registers a recording item from the analysis device 7 for each test for each plant state information.
　本実施の形態例に係る保守装置２は、解析装置７に信号識別子を登録し、信号識別子に基づいて解析装置７が検索した信号識別子毎のプラント状態情報を取得する。例えば、テストＡの時に信号識別子ＩＤ－Ａ、ＩＤ－Ｂ、ＩＤ－Ｃ、ＩＤ－Ｄが保守装置２の収録項目に登録が必要とされ、テストＢの時に信号識別子ＩＤ－Ｃ、ＩＤ－Ｘ、ＩＤ－Ｙ、ＩＤ－Ｚが保守装置２の収録項目に登録が必要とされるものとする。信号識別子ＩＤ－Ａ、ＩＤ－Ｂ、ＩＤ－Ｄは、テストＡの期間に収録項目に登録される。テストＡの終了後には、テストＡの収録項目が削除され、テストＢの期間は信号識別子ＩＤ－Ｃ、ＩＤ－Ｘ、ＩＤ－Ｙ、ＩＤ－Ｚが収録項目に登録される。保守装置２が解析装置７に信号識別子を登録する動作は上述した図５を参照して説明済みである。 The maintenance device 2 according to the present embodiment registers a signal identifier in the analysis device 7, and acquires plant state information for each signal identifier searched by the analysis device 7 based on the signal identifier. For example, the signal identifiers ID-A, ID-B, ID-C, and ID-D are required to be registered in the recording items of the maintenance device 2 during the test A, and the signal identifiers ID-C and ID-X are used during the test B. ID-Y and ID-Z are required to be registered in the recording items of the maintenance device 2. The signal identifiers ID-A, ID-B, and ID-D are registered in the recording items during the test A period. After the end of test A, the recorded item of test A is deleted, and during the period of test B, signal identifiers ID-C, ID-X, ID-Y and ID-Z are registered in the recorded item. The operation in which the maintenance device 2 registers the signal identifier in the analysis device 7 has been described with reference to FIG.
　解析装置７の解析装置用データベース７０には、テストＡ、テストＢのそれぞれの収録項目が登録されており、各々の収録項目にプラント状態情報が付加された収録データが解析装置用データベース７０に蓄積される。このように収録データがプラント状態情報を有することにより、プラント状態検索部７２がプラント状態情報を検索することができる。そして、解析装置７は、信号識別子に対応するプラント状態情報を保守装置２に送信する。これにより保守装置２は、信号識別子に対応するプラント状態情報を登録することができる。
　なお、保守装置２が信号識別子を解析装置７に送信し、解析装置７から信号識別子に対応するプラント状態情報を取得する処理は、データ収録装置６も行うことができる。 In the analysis device database 70 of the analysis device 7, recorded items of test A and test B are registered, and recorded data in which plant state information is added to each recorded item is stored in the analysis device database 70. Is done. As described above, since the recorded data has the plant state information, the plant state search unit 72 can search the plant state information. Then, the analysis device 7 transmits plant state information corresponding to the signal identifier to the maintenance device 2. Thereby, the maintenance apparatus 2 can register the plant state information corresponding to the signal identifier.
Note that the processing of the maintenance device 2 transmitting the signal identifier to the analysis device 7 and acquiring the plant state information corresponding to the signal identifier from the analysis device 7 can also be performed by the data recording device 6.
＜関係信号情報を収録項目に登録する処理の例＞
　図１３は、関係信号情報を収録項目に登録する処理の例を示す説明図である。 <Example of processing for registering related signal information in recorded items>
FIG. 13 is an explanatory diagram illustrating an example of processing for registering related signal information in a recording item.
　従来、配管系統図Ｄ１、制御系統図・制御ブロック図Ｄ２等の内容を理解できる保守員や運転員がその知識を元にして収録項目に関係信号情報を登録していた。
　ここで、配管系統図Ｄ１は、プラントにおける圧力、温度、流量、弁、ポンプ等の検出器、制御対象機器９の配置や配管の接続、分岐情報等を含む。図１３に示す配管系統図Ｄ１には、圧力計、調節弁、流量計の配管系統が示される。
　制御系統図・制御ブロック図Ｄ２は、プラントの制御ロジック２１やパラメーター情報を含む。図１３に示す制御系統図・制御ブロック図Ｄ２では、圧力計によって計測された圧力Ａに基づいて、調節弁Ａ２の開度等が調節される様子が示される。 Conventionally, maintenance signals and operators who can understand the contents of the piping system diagram D1, the control system diagram / control block diagram D2, etc. have registered the related signal information in the recorded items based on that knowledge.
Here, the piping system diagram D1 includes pressure, temperature, flow rate, detectors such as valves and pumps in the plant, arrangement of the control target device 9, connection of piping, branch information, and the like. The piping system diagram D1 shown in FIG. 13 shows a piping system of a pressure gauge, a control valve, and a flow meter.
The control system diagram / control block diagram D2 includes plant control logic 21 and parameter information. A control system diagram / control block diagram D2 shown in FIG. 13 shows how the opening degree of the control valve A2 is adjusted based on the pressure A measured by the pressure gauge.
　従来、プラントの保守知識がない作業員が、ある収録項目（例えば、圧力Ａ）に関係する関係信号情報を収録データから読出すには、配管系統図Ｄ１、制御系統図・制御ブロック図Ｄ２等の図面を照合し、関係信号情報を調査しなければならなかった。 Conventionally, a worker who has no knowledge of plant maintenance can read related signal information related to a certain recorded item (for example, pressure A) from the recorded data by piping system diagram D1, control system diagram / control block diagram D2, etc. I had to collate the drawings and investigate the related signal information.
　一方、本実施の形態例において、作業員は、保守装置２又はデータ収録装置６を操作して、監視対象とする計測項目として圧力Ａを、保守装置２又はデータ収録装置６の収録項目に登録する。
　そして、解析装置７は、保守装置２又はデータ収録装置６のいずれかの収録項目に格納された計測項目に関係する制御対象機器９の関係信号を、関係信号情報格納部から読出した関係信号情報から取得することが可能である。このため、収録項目の関係信号情報格納部には、各収録項目に関連性が高い計測項目やロジック演算値が予め登録される。例えば、保守装置２又はデータ収録装置６は、圧力Ａとの関連性が高い流量Ａ１、調節弁Ａ２の開度、調節弁Ａ２の開度指令値、温度Ａ３等の計測項目やロジック演算値等の関係信号を、予め関係信号情報として関係信号情報格納部に登録し、保存する。このため、解析装置７は、関係信号情報格納部に圧力Ａが登録されると、圧力Ａに関係する流量Ａ１、調節弁Ａ２の開度、調節弁Ａ２の開度指令値、温度Ａ３等の計測項目やロジック演算値等をデータ収録装置６から読み出し、これらの値を自動的に収録項目に登録できる。 On the other hand, in the present embodiment, the operator operates the maintenance device 2 or the data recording device 6 to register the pressure A as a measurement item to be monitored in the recording item of the maintenance device 2 or the data recording device 6. To do.
Then, the analysis device 7 reads the related signal information of the control target device 9 related to the measurement item stored in the recording item of either the maintenance device 2 or the data recording device 6 from the related signal information storage unit. It is possible to obtain from For this reason, the measurement item and logic operation value which are highly relevant to each recording item are registered in the related signal information storage unit of the recording item in advance. For example, the maintenance device 2 or the data recording device 6 has a flow rate A1, a control valve A2 opening degree, a control valve A2 opening command value, a temperature A3 measurement item, a logic calculation value, etc. that are highly related to the pressure A. Are previously registered in the related signal information storage unit as related signal information and stored. For this reason, when the pressure A is registered in the relational signal information storage unit, the analysis device 7 determines the flow rate A1, the opening degree of the control valve A2, the opening command value of the control valve A2, the temperature A3, etc. Measurement items, logic operation values, and the like can be read from the data recording device 6 and these values can be automatically registered in the recording items.
　これにより解析装置７は、監視対象とする計測項目やロジック演算値を収録項目に登録する際に、計測項目やロジック演算値との関連性が高い収録項目の登録を容易に行うことができる。このようにプラント運転又は保守経験に基づく知識や、プラントの配管、制御対象機器９、センサー構成等の保守員の業務知識のない使用者であっても、解析装置７を操作して、プラントを監視し、運転するために必要な収録項目の登録を容易に行える。 Thereby, the analysis device 7 can easily register the recording item having high relevance to the measurement item and the logic operation value when registering the measurement item and the logic operation value to be monitored in the recording item. In this way, even users who do not have knowledge based on plant operation or maintenance experience, or maintenance knowledge of plant piping, controlled equipment 9, sensor configuration, etc., operate the analyzer 7 to operate the plant. Recording items necessary for monitoring and driving can be easily registered.
　以上説明した一実施の形態例に係るデータ解析システム１では、解析装置７に収録項目７１を選択し、登録する設定操作をデータ収録装置６又は保守装置２から実施できる。このため、従来、各装置の使用者がそれぞれ収録項目を選択及び設定していた手間を削減することができる。そして、保守装置２又はデータ収録装置６が解析装置７に収録データを供することで、解析装置７の使用者が収録データを容易に使用することができる。 In the data analysis system 1 according to the embodiment described above, the setting operation for selecting and registering the recording item 71 in the analysis device 7 can be performed from the data recording device 6 or the maintenance device 2. For this reason, conventionally, it is possible to reduce the trouble of selecting and setting the recording items by the user of each apparatus. Then, the maintenance device 2 or the data recording device 6 supplies the recording data to the analysis device 7 so that the user of the analysis device 7 can easily use the recording data.
　また、データ収録装置６の収録項目を、保守装置２、データ収録装置６、解析装置７がそれぞれの用途で用いることができる。また、保守装置２、データ収録装置６、解析装置７の使用者は、使い慣れた装置に予め用意されたユーザーインターフェイスを通常の方法で使用することで、目的とする収録項目から必要な情報を得ることができる。このため、各装置が行う作業を低減しつつ、利便性の向上を実現することができる。 Also, the recording items of the data recording device 6 can be used by the maintenance device 2, the data recording device 6, and the analysis device 7 for their respective purposes. In addition, the user of the maintenance device 2, the data recording device 6, and the analysis device 7 obtains necessary information from the target recording items by using a user interface prepared in advance in a familiar device in a normal manner. be able to. Therefore, it is possible to improve convenience while reducing the work performed by each device.
　また、従来はイベント終了後に廃棄していた収録データを解析装置用データベース７０に保存し、解析装置７が行う故障予兆解析に用いることができる。また、解析装置７が解析対象とするプラント状態の種類（試験中、起動中、通常運転中、停止中等）を広げることが可能となる。 In addition, recorded data that has been discarded after the end of the event can be stored in the analysis device database 70 and used for failure sign analysis performed by the analysis device 7. Moreover, it becomes possible to expand the types of plant states (analyzing, starting, normal operation, stopping, etc.) to be analyzed by the analysis device 7.
　また、解析装置７は、故障予兆解析を行う上で必要とする収録データを容易に得ることができる。
　また、プラント運転又は保守経験に基づく知識や、プラントの配管、制御対象機器９、センサー群８の構成等といった業務知識を持たない作業員であっても、故障発生時に当該箇所の関連項目を呼び出すことができる。 Moreover, the analysis device 7 can easily obtain recorded data necessary for performing failure sign analysis.
In addition, even workers who do not have business knowledge such as knowledge based on plant operation or maintenance experience, plant piping, control target equipment 9, sensor group 8 configuration, etc., call related items at the relevant location when a failure occurs be able to.
　なお、本発明は上述した実施の形態例に限られるものではなく、請求の範囲に記載した本発明の要旨を逸脱しない限りその他種々の応用例、変形例を取り得ることは勿論である。
　例えば、上述した実施の形態例は本発明を分かりやすく説明するために装置及びシステムの構成を詳細かつ具体的に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されない。また、ここで説明した実施の形態例の構成の一部を他の実施の形態例の構成に置き換えることは可能であり、さらにはある実施の形態例の構成に他の実施の形態例の構成を加えることも可能である。また、各実施の形態例の構成の一部について、他の構成の追加、削除、置換をすることも可能である。
　また、制御線や情報線は説明上必要と考えられるものを示しており、製品上必ずしも全ての制御線や情報線を示しているとは限らない。実際には殆ど全ての構成が相互に接続されていると考えてもよい。 It should be noted that the present invention is not limited to the above-described embodiments, and various other application examples and modifications can be taken without departing from the gist of the present invention described in the claims.
For example, the above-described embodiments are detailed and specific configurations of the apparatus and the system in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Further, it is possible to replace a part of the configuration of the embodiment described here with the configuration of another embodiment, and further, the configuration of another embodiment is replaced with the configuration of another embodiment. It is also possible to add. Moreover, it is also possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.
Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.
　１…データ解析システム、２…保守装置、３…計測監視制御装置、４…工程表作成管理装置、５…運転監視端末、６…データ収録装置、７…解析装置、８…センサー群、９…制御対象機器、２１…制御ロジック、４１…予定工程表、４２…実績工程表、６０…収録装置用データベース、６１…収録項目、６２…収録データ、７０…解析装置用データベース、７１…収録項目、７２…プラント状態検索部、７３…故障予兆解析対象データ、７４…比較用サンプルデータ作成部、７５…データ比較部、Ｄ１…配管系統図、Ｄ２…制御系統図・制御ブロック図 DESCRIPTION OF SYMBOLS 1 ... Data analysis system, 2 ... Maintenance apparatus, 3 ... Measurement monitoring control apparatus, 4 ... Process chart preparation management apparatus, 5 ... Operation monitoring terminal, 6 ... Data recording apparatus, 7 ... Analysis apparatus, 8 ... Sensor group, 9 ... Control target device, 21 ... control logic, 41 ... scheduled process table, 42 ... result process table, 60 ... recording device database, 61 ... recording item, 62 ... recording data, 70 ... analyzing device database, 71 ... recording item, 72 ... Plant state search unit, 73 ... failure sign analysis target data, 74 ... comparison sample data creation unit, 75 ... data comparison unit, D1 ... piping system diagram, D2 ... control system diagram / control block diagram

Claims (7)

  1. 　プラントを構成する制御対象機器の制御保護ロジック及びパラメーターの作成及び管理を司る保守装置と、
    　解析装置によるデータの検索に用いられる付加情報を付加して、前記制御対象機器の動作状態を示す前記データの収録項目を保存するデータ収録装置と、
    　所定の目的に応じて前記データ収録装置から読出した前記データの解析を行う前記解析装置と、を備え、
    　前記保守装置又は前記データ収録装置は、装置毎に設定される所定のユーザーインターフェイスを用いて前記解析装置が保存する前記収録項目の選択及び設定を前記解析装置に行い、
    　前記解析装置は、前記保守装置又は前記データ収録装置により選択及び設定された前記収録項目に、前記データ収録装置から抽出した前記データを格納して所定の解析処理を行う
    　データ解析システム。     A maintenance device that manages the creation and management of the control protection logic and parameters of the control target equipment constituting the plant;
    A data recording device that adds additional information used for data search by an analysis device and stores the data recording items indicating the operation state of the control target device;
    The analysis device for analyzing the data read from the data recording device according to a predetermined purpose, and
    The maintenance device or the data recording device performs selection and setting of the recording items stored in the analysis device using a predetermined user interface set for each device in the analysis device,
    The data analysis system, wherein the analysis device stores the data extracted from the data recording device in the recording items selected and set by the maintenance device or the data recording device and performs a predetermined analysis process.
  2. 　前記付加情報は、前記プラントのプラント状態を表すプラント状態情報を格納するプラント状態情報格納部を有し、
    　前記保守装置は、特定の信号を示す信号識別子を前記解析装置に送信し、前記解析装置のプラント状態検索部が前記信号識別子に基づいて、前記解析装置が備える解析装置用データベースから検索した前記プラント状態情報を前記解析装置から取得する
    　請求項１に記載のデータ解析システム。     The additional information has a plant state information storage unit that stores plant state information representing a plant state of the plant,
    The maintenance device transmits a signal identifier indicating a specific signal to the analysis device, and the plant state search unit of the analysis device searches the analysis device database included in the analysis device based on the signal identifier. The data analysis system according to claim 1, wherein state information is acquired from the analysis device.
  3. 　さらに、前記プラントに対して行われる作業の予定を格納する予定工程表、及び前記作業の作業実績を格納する実績工程表を作成する工程表作成管理装置を備え、
    　前記プラント状態検索部は、前記予定工程表に含まれる前記作業に該当する前記プラント状態情報を前記解析装置用データベースから検索し、
    　前記データ収録装置は、前記プラント状態検索部によって検索された前記プラント状態情報に対応して前記解析装置用データベースに収録される収録データを前記工程表作成管理装置に受け渡し、
    　前記工程表作成管理装置は、前記データ収録装置から渡された前記収録データに基づいて前記実績工程表を作成する
    　請求項２に記載のデータ解析システム。     Furthermore, a schedule table for storing a schedule of work to be performed on the plant, and a schedule table creation management device for creating a schedule table for storing work results of the work,
    The plant state search unit searches the analysis device database for the plant state information corresponding to the work included in the scheduled process chart,
    The data recording device delivers recorded data recorded in the analysis device database corresponding to the plant state information searched by the plant state search unit to the process chart creation management device,
    The data analysis system according to claim 2, wherein the process chart creation management apparatus creates the actual process chart based on the recorded data delivered from the data recording apparatus.
  4. 　さらに、前記制御対象機器に発生した故障の発生を警報する運転監視端末を備え、
    　前記付加情報は、前記制御対象機器に過去に発生した故障の故障原因を表す故障原因情報を格納する故障原因情報格納部を有し、
    　前記解析装置は、前記運転監視端末により警報された前記故障と同一又は類似の過去に発生した前記故障の前記故障原因を前記故障原因情報から特定する
    　請求項２に記載のデータ解析システム。     Furthermore, an operation monitoring terminal that warns the occurrence of a failure that has occurred in the control target device,
    The additional information includes a failure cause information storage unit that stores failure cause information representing a failure cause of a failure that has occurred in the past in the control target device,
    The data analysis system according to claim 2, wherein the analysis device specifies the failure cause of the failure that has occurred in the past that is the same as or similar to the failure that is warned by the operation monitoring terminal from the failure cause information.
  5. 　前記保守装置は、前記プラントにイベントが発生したときにおける前記プラント状態情報を保持し、
    　前記解析装置は、
    　前記保守装置から通知された前記イベントに対応する過去の前記プラント状態情報を前記解析装置用データベースから検索する前記プラント状態検索部と、
    　前記プラント状態検索部により検索された過去の前記プラント状態情報に基づいて比較用サンプルデータを作成する比較用サンプルデータ作成部と、
    　前記保守装置から通知された前記プラント状態の収録データと、前記比較用サンプルデータとを比較して比較結果を出力するデータ比較部と、を有する
    　請求項４に記載のデータ解析システム。     The maintenance device holds the plant state information when an event occurs in the plant,
    The analysis device includes:
    The plant state search unit that searches the database for the analysis device for the past plant state information corresponding to the event notified from the maintenance device;
    A sample data creation unit for comparison that creates sample data for comparison based on the past plant state information searched by the plant state search unit;
    The data analysis system according to claim 4, further comprising: a data comparison unit that compares the recorded data of the plant state notified from the maintenance device with the sample data for comparison and outputs a comparison result.
  6. 　前記保守装置は、前記解析装置に前記信号識別子を登録し、前記信号識別子に基づいて前記解析装置が検索した前記信号識別子毎のプラント状態情報を取得する
    　請求項５に記載のデータ解析システム。     The data analysis system according to claim 5, wherein the maintenance device registers the signal identifier in the analysis device, and acquires plant state information for each signal identifier searched by the analysis device based on the signal identifier.
  7. 　前記付加情報は、互いに関係する複数の前記制御対象機器の関係信号を表す関係信号情報を格納する関係信号情報格納部を有し、
    　前記解析装置は、前記収録項目に格納された計測項目に関係する前記制御対象機器の前記関係信号を前記関係信号情報格納部から読出した前記関係信号情報から取得する
    　請求項２に記載のデータ解析システム。     The additional information includes a related signal information storage unit that stores related signal information representing related signals of a plurality of the control target devices related to each other.
    The data analysis according to claim 2, wherein the analysis device acquires the related signal of the control target device related to the measurement item stored in the recording item from the related signal information read from the related signal information storage unit. system.
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