JP2010204924A - Monitoring control system and monitoring method for maintenance apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable input designation for an area of a maintenance target apparatus, and to readily recognize an event occurrence status that occurs from a site during maintenance work. <P>SOLUTION: A monitoring control system which executes usual monitoring work in parallel with maintenance work of apparatuses, includes an input designation means 4A for designating an apparatus symbol or an area of an instrumentation graphic screen 11, displayed on a display unit 6 and for inputting a maintenance period; a monitoring status display means 14B for adding a maintenance mark 14 to the apparatus symbol on the instrumentation graphic screen or an apparatus symbol in the area, when a maintenance start time of the maintenance period is reached and for displaying the monitoring status 16; and an occurrence event message providing means 14C for blinking the maintenance mark 14 of a corresponding target apparatus at the occurrence of an event during the maintenance work and for displaying an alarm message related to an occurrence event in the monitoring status. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In the present invention, when normal monitoring work is performed in parallel with maintenance work (hereinafter referred to as maintenance) such as inspection / maintenance of the maintenance target device, the occurrence of the maintenance work does not affect the normal monitoring work. The present invention relates to a monitoring control system and a maintenance device monitoring method.

  In recent years, there are many types of process instrumentation systems that need to continue operation for a long period of time without stopping operation.

  In such a process instrumentation system, it is necessary to perform maintenance work for each device installed in the process instrumentation system in parallel with the normal monitoring work.

  In conventional monitoring and control systems, when carrying out maintenance work for a predetermined maintenance work plan or sudden failure of a specific device, the maintenance work for a specific maintenance target device is performed based on the maintenance work plan or by a maintenance person by telephone or the like. Inform the monitoring staff that the maintenance will be carried out and start maintenance work.

  At this time, even if an alarm is generated from the maintenance target device, the monitor determines that the alarm is due to maintenance work and ignores it. On the other hand, when the supervisor changes every predetermined time zone, a sticky note indicating that the maintenance work is being performed or at what time the maintenance work is performed is pasted near the maintenance target device symbol on the displayed instrument graphic screen. The system is to notify the observer.

  However, as a supervisor who is currently monitoring or taking over, when a frequent alarm is generated during maintenance work, each time the alarm occurs, whether the current alarm is a warning due to maintenance work or an alarm due to an original abnormality. Often it is necessary to confirm and it is difficult to respond.

  Therefore, in recent years, a monitoring control system that performs billing processing for alarms in devices that are undergoing maintenance work has been on the market. When a maintenance work plan is received or a maintenance person receives a telephone call for maintenance work, the tagging is masked for each signal type of the maintenance target equipment specified by the supervisor, and is raised from the on-site process instrumentation system. This means that monitoring by the monitoring screen is not performed by not capturing the corresponding signal.

  However, because the tagging process depends on the operation of the supervisor, setting omissions and release omissions are likely to occur, and the output status of the maintenance target device during maintenance work cannot be seen at all. It is difficult to detect when it occurs, and it has a great impact on monitoring work.

  In addition, when a supervisor performs maintenance work on multiple maintenance target devices, the tagging setting operation and the setting cancellation are performed for each maintenance target device and each signal type. It ’s bad. For this reason, some monitoring personnel may continue monitoring work without setting billing.

  As a result, similar to the above-described conventional monitoring and control system, each time an alarm occurs, a call is made to the site to check whether the currently issued alarm is an alarm due to maintenance work or an alarm due to an original abnormality. As a result, it largely depends on the experience and knowledge of the observer, and this greatly increases the burden on the observer.

  Furthermore, a billing management system that displays a billing symbol on a maintenance target equipment symbol on the instrumentation graphic screen displayed on the display unit based on the billing setting operation is proposed as another billing system. (Patent Document 1).

  In this billing management system, an administrator selects a facility to be maintained in advance, registers or updates bill information indicating a facility management mode in the billing information table, and the control means stores it in the billing information table when the facility is in operation. According to the registered maintenance target facility and management mode, a billing symbol is displayed on the maintenance target facility on the instrumentation graphic screen of the display unit, and control is performed according to the management mode.

JP-A-9-97040

  However, the tagging technology in the patent document is registered in advance in the tagging information table for each individual maintenance target equipment and the management mode for each equipment based on a work plan or a communication from a maintenance staff in advance. The target devices cannot be specified by grouping them into areas or groups.

  In addition, because the operation for entering and registering each maintenance target equipment and the management mode for each equipment in advance in the billing information table is performed, it is easy for omission to be set or released, and After registration, the event occurrence status of maintenance work does not rise at all from the field. Therefore, when a billing setting omission or release omission occurs, it is difficult to find the setting omission or omission omission, and the influence on the monitoring work is increased.

  In addition, there is a problem that a history such as an event occurrence state during maintenance work is not stored, so that it cannot be effectively used for later maintenance work.

  The present invention has been made in view of the above circumstances, and can input and specify a plurality of maintenance target devices at once, and can recognize the occurrence of an event occurring from the site during maintenance work regardless of whether or not the maintenance target device is specified. It is another object of the present invention to provide a monitoring control system and a maintenance device monitoring method that reliably store a history of alarm messages generated by occurrence of events.

  In order to solve the above-described problem, the monitoring control system according to the present invention, which performs normal monitoring work in parallel with maintenance work of equipment installed in the monitoring target system, includes the monitoring target system displayed on the display unit. A maintenance target input specifying means for specifying a device symbol or area on the instrumentation graphic screen, inputting a maintenance period, and setting a maintenance target apparatus or maintenance target area, and the maintenance set by the maintenance target input specifying means When the maintenance start time of the period is reached, a maintenance mark is added to the maintenance target device symbol on the instrumentation graphic screen or the maintenance target device symbol in the corresponding region based on the set maintenance target device or maintenance target region. And a monitoring status display means for displaying a predetermined monitoring status, and when a predetermined event occurs during maintenance work, Blink maintenance mark of the maintenance target apparatus symbols response, and a configuration in which a generation event message providing means for displaying writing an alert message about the generated event to the monitoring status.

  According to the present invention, a plurality of maintenance target devices can be collectively designated from the instrumentation graphic screen, the monitoring status is displayed separately from the instrumentation graphic screen, and when a predetermined event occurs during maintenance work, By receiving and flashing the maintenance mark of the maintenance target device symbol and writing and displaying an alarm message related to the occurrence event in the monitoring status, the occurrence of an event occurring from the site during maintenance work regardless of whether or not the maintenance target device is specified It is possible to provide a monitoring control system and a maintenance device monitoring method capable of recognizing and securely storing a history of alarm messages due to event occurrence.

The block diagram which shows one Embodiment of the monitoring control system which concerns on this invention. The flowchart which shows the flow of a series of processes explaining the monitoring control system and the monitoring method of a maintenance apparatus. FIG. 3 is a flowchart showing a flow of a series of processes following FIG. 2. An example figure of the instrumentation graphic screen displayed on a display part. An example figure of an event generating device and an alarm message displayed in a monitoring situation.

FIG. 1 is a block diagram showing an embodiment of a monitoring control system according to the present invention.
The monitoring control system includes an input storage unit 1, a ROM 2, an external storage device 3 such as a magnetic disk, a maintenance monitoring processing unit 4, a display control unit 5, and a CPU that executes predetermined processing based on a maintenance monitoring program. The display unit 6 is configured.

  The maintenance monitoring processing unit 4 is connected to an on-site control device 8 of a process instrumentation system (monitored system) via an input / output interface (not shown) and an internal network 7 such as a LAN. The site-side control device 8 includes, for example, a plurality of controllers that capture the operating state of devices installed in various parts of the process instrumentation system and physical variables of the process, or a general control device that controls each controller and these controllers in an integrated manner. Consists of.

  The input unit 1 uses a keyboard 1a, various pointing devices (hereinafter referred to as a mouse) 1b, and the like, and inputs desired operation instructions such as selection of devices and areas to be maintained and maintenance settings to the maintenance monitoring control unit 4. To do.

  The ROM 2 stores a program for providing a basic user operation environment of the system including screen storage and display, and a maintenance monitoring program relating to the monitoring processing procedure according to the present invention.

  The external storage device 3 receives the event occurrence data including the device ID of each device sent from the on-site control device 8 of the process instrumentation system, the operation state, and the process variable, and stores them in time series. Data storage area 3a, instrumentation graphic screen displayed on display unit 6, image data storage area 3b for storing monitoring status and other necessary screens (image display data), mark indicating maintenance target and event occurrence, and other monitoring control A setting data storage area 3c for storing necessary setting data, an alarm message storage area 3d for storing history data of alarm messages in time series, and other maintenance management table 3e are provided.

  The maintenance monitoring processing unit 4 reads out a maintenance monitoring program stored in the ROM 2 and stores it in the external storage device 3, and then executes a predetermined process according to the maintenance monitoring program.

  Functionally, the maintenance monitoring processing unit 4 uses the mouse 1b of the input unit 1 to select an area by clicking an instrument symbol on the instrument graphic screen displayed on the display unit 6 or moving the cursor. Based on (input designation), maintenance target input designation means 4A for determining that there is an input designation of a maintenance target (for example, a maintenance target device, a maintenance target area, etc.) from the position of the cursor on the instrumentation graphic screen, and display on the display unit 6 Monitoring status display means 4B for displaying the monitoring status, for example, at the bottom of the instrumented graphic screen, and generated event message providing means for sequentially writing and displaying alarm messages related to the generated events in the monitoring status when an event occurs during maintenance work. 4C.

  The display control unit 5 has a function of displaying a necessary screen on the display unit 6 in cooperation with a program that provides a user operation environment stored in the ROM 2.

  Next, the operation of the monitoring control system as described above will be described with reference to FIGS.

  The maintenance monitoring processing unit 4 reads the instrumentation graphic screen 11 (see FIG. 4) from the image data storage area 3 b of the external storage device 3 on the basis of an instruction to start the monitoring operation by the monitor, and displays the display unit 6 through the display control unit 5. (S1), the maintenance target input designation means 4A is executed.

  Normally, maintenance personnel go to the work site to perform maintenance work based on a maintenance work plan or in response to an unexpected report of a maintenance target device that occurs suddenly. Therefore, the monitoring staff shall perform the maintenance work on the specific equipment or area to be maintained based on the maintenance work plan or by telephone or e-mail from the maintenance staff who went to the site before the maintenance work. Based on the notification of the period, the maintenance target input designating means 4A is executed.

  Therefore, as the maintenance target input specifying means 4A of the maintenance monitoring processing unit 4, after the instrumentation graphic screen 11 is displayed on the display unit 6 (S1), the monitoring person can change the maintenance target device or the maintenance target from the maintenance work plan or the maintenance person. It is determined whether there is “maintenance selection” for selecting a maintenance target from the keyboard 1a or the mouse 1b based on the notification that the maintenance work is performed in the area and the maintenance work period (S2).

  Here, when it is determined that “maintenance selection” is present, the device symbol on the instrumentation graphic screen 11 shown in FIG. 4 is clicked by the operation of the mouse 1b thereafter (S3), or the cursor 12 is moved from 12a to 12b. (Or from 12b to 12a), it is determined whether or not an area is designated as shown by the dotted line (S4). When it is determined that the device or area is designated, the data of the maintenance target equipment or a plurality of maintenance target equipment existing in the designated area is stored in an appropriate storage means (S5).

  Subsequently, the maintenance monitoring processing unit 4 determines whether the maintenance period is set. If the maintenance period is set, the maintenance monitoring processing unit 4 inputs the maintenance start and end date, and similarly stores them in appropriate storage means. As shown in FIG. 4, the maintenance period window 13 is displayed in a predetermined free area of the instrumentation graphic screen 11, and the maintenance start and end date and time are written and displayed (S6, S7). .

  After confirming the date of maintenance start and maintenance end, the monitor inputs an operation instruction of “maintenance setting” from the keyboard 11a or the mouse 11b.

  When the maintenance monitoring processing unit 4 receives the operation instruction of “maintenance setting”, the maintenance target device stored in an appropriate storage unit or data of a plurality of maintenance target devices existing in the designated area and maintenance start / maintenance end Is registered in the maintenance management table 3e of the external storage device 3, for example (S8, S9).

  After the maintenance target device data and the maintenance start / maintenance end date / time data are registered, the maintenance window 13 may be deleted, or the display may be continued.

  Further, the maintenance monitoring processing unit 4 determines whether or not there is a next maintenance selection (S10), and if there is a next maintenance selection, returns to step S3 and repeatedly executes the same processing, and determines that there is no next maintenance selection. In this case, the process proceeds to step S11, where it is determined whether or not the maintenance start time registered in the maintenance management table 3e has been reached. If the maintenance start time has not been reached, the process returns to step S10.

  When the maintenance monitoring processing unit 4 determines that the maintenance start time has been reached, the maintenance monitoring processing unit 4 executes the monitoring status display means 4B and executes the processing shown in FIG.

  That is, the monitoring status display means 4B takes out a predetermined maintenance mark 14 from the setting data storage area 3c of the external storage device 3, and presents in the specified area of the instrument graphic screen 11 displayed on the display unit 6. As shown in FIG. 5, a maintenance mark 14 is attached to a position in the vicinity of the symbols of a plurality of maintenance target devices, for example, “8”, “9”, and [10], for which the alarm is being suppressed, and a message indicating that the alarm is currently being suppressed. It is displayed (S12).

  By attaching the maintenance mark 14 to the maintenance target device in this way, it can be recognized at a glance that a plurality of maintenance target devices are under alarm suppression control.

  The monitoring status display means 4B takes out the monitoring status 15 from the setting data storage area 3c and displays it (S13).

  The instrumentation graphic screen 11 and the monitoring status 15 are displayed separately on the monitor screen of the display unit 6. For example, an “alarm screen confirmation” button is displayed at a predetermined location on the instrumentation graphic screen 11, for example. A method of displaying the monitoring status 15 instead of the instrumentation graphic screen 11 when the button is clicked at the processing end timing of S13 may be used.

  In addition, a display / non-display selection button is formed on the instrumentation graphic screen 11, and the non-display side button is selected during normal monitoring, and an alarm is issued from the maintenance target device during maintenance of the maintenance target device. Only when the maintenance mark 14 is attached to the symbol of the corresponding device, it may be recognized that the alarm is being maintained for the maintenance target device.

  Subsequently, the maintenance monitoring processing unit 4 executes the generated event message providing unit 4C.

  The generated event message providing unit 4C determines whether or not an event such as a failure has occurred during the maintenance work (S14), and if an event has occurred, determines whether or not the device is a maintenance target device (S15). When an event such as a failure occurs due to a device, the maintenance mark 14 attached to the corresponding device symbol on the instrumentation graphic screen 11 is blinked (see 14 (a)) (S16), and in the monitoring status 15 An alarm message is written, and a predetermined event occurrence mark 16 is added to the head of the alarm message (S17).

  On the other hand, when an event occurs in a device other than the maintenance target in step S15, an alarm message is similarly written in the monitoring status 15 (S18).

  Note that the alarm message is written and displayed in the order in which the failure / recovery event occurred or the maintenance target device and the non-maintenance device, and the occurrence order of the event. The contents of the alarm message are, for example, the event occurrence date / time, the field maintenance date / time, the target facility, the event occurrence device, the occurrence event such as failure occurrence / recovery, and the like.

  Thereafter, it is determined whether or not the event is recovered (S19). In the event recovery, a recovery message is written in the monitoring status 15 and an event recovery mark is attached (S20). This clearly indicates that the maintenance target device is restored.

  Furthermore, the generated event message providing unit 4C determines whether or not the maintenance is finished from the maintenance period registered in the maintenance management table 3e (S21). If the maintenance end time has not been reached, the process returns to step S14 and the same. The processing is repeated, and when the maintenance end time has been reached, the alarm message relating to the event occurrence written in the monitoring status 15 is stored and stored in the alarm message storage area 3d of the external storage device 3.

  In the monitoring status 15, an alarm message related to the occurrence event during the maintenance work is written. For example, in the order in which failure / recovery events occurred between the last maintenance work end date and the current maintenance work end, for example, Alarm messages such as the date of occurrence, date and time of on-site maintenance, target equipment, event-generating equipment, and occurrence events such as failure occurrence / recovery may be written and displayed.

  Therefore, according to the embodiment as described above, since the device or area to be maintained on the instrumentation graphic screen 11 is designated by the mouse 11b, the maintenance target devices in the area are collectively set for maintenance when the area is designated. it can.

  In addition, since the maintenance mark 14 is attached to the device symbol in the designated area, it is possible for the monitor to clearly understand a plurality of maintenance target devices whose alarms are being suppressed.

  Furthermore, when an event occurs from a maintenance target device or a device other than the maintenance target during maintenance work, an alarm message is written in the order of occurrence in the monitoring status 15 so that it can be recognized. If the alarm status of the device can be recognized and an event occurs due to the maintenance target device, the maintenance mark of the maintenance target device symbol on the instrumentation graphic screen 11 blinks, and a predetermined mark is added to the head of the alarm message. Therefore, it can be easily recognized from which maintenance target device the alarm is issued.

(Other embodiments)
(1) When the maintenance monitoring processing unit 4 receives a call or e-mail from the maintenance staff at the start of maintenance for each maintenance target device, the maintenance mark is sequentially transferred to the symbol of the corresponding device regarding maintenance work for a plurality of maintenance target devices. If the display is changed, the direction and progress of the maintenance work can be grasped.

  Specifically, when a maintenance person receives an instruction to start a maintenance device by telephone or e-mail, the monitoring person attaches a maintenance mark 14 to the maintenance target device symbol on the instrumentation graphic screen 11 and goes to step S13 in FIG. Steps S13 to S21 are executed, and upon completion of maintenance of the target maintenance target device, the same process is repeated upon receiving a maintenance end and an instruction from the next maintenance start device by telephone or e-mail from the maintenance staff. At the end of the maintenance of the maintenance target device, the maintenance mark already attached is deleted, and the maintenance mark 14 is added to the symbol of the new maintenance target device, so that the monitoring staff can change the direction of maintenance work from the display and Work progress can be accurately grasped.

(2) In the above embodiment, for example, alarm messages are sequentially written in the order of occurrence of events in the maintenance target device, and the event occurrence mark 16 is added to the head of the alarm message. In this case, it may be difficult to determine which maintenance target device currently causes the event.

  Therefore, if an alarm message corresponding to the maintenance target device where the current event has occurred is displayed in a different color, or if the event occurrence mark 16 at the head of the alarm message is displayed blinking, an event will occur during the maintenance work of which maintenance target device is currently in progress. You can easily determine if it occurred.

(3) The event occurrence of the alarm message prescribes only the occurrence of a failure as shown in FIG. 5, but for example, an allowable limit value or a medium abnormality level / a heavy abnormality level is set in advance in the setting data storage area 3c, Compare the output signal level output from the equipment installed in the process instrumentation system with the permissible limit value or medium abnormal level / heavy abnormal level, and the allowable limit value when the output signal level exceeds these set levels. It may be defined as abnormal, medium level abnormality, or heavy level abnormality.

(4) In the above embodiment, the event occurrence state during the maintenance period is stored and stored in the alarm message storage area 3d of the external storage device 3, but is transferred to the storage medium FD or the like when necessary and stored in an external computer. May be saved.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 ... Input part, 2 ... ROM, 3 ... External storage device, 4 ... Maintenance monitoring process part, 4A ... Maintenance object input designation means, 4B ... Monitoring status display means, 4C ... Occurrence event message provision means, 6 ... Display part, 7 ... Network, 8 ... Site side control device.

Claims (5)

In a monitoring and control system that performs normal monitoring work in parallel with maintenance work for equipment installed in the monitored system,
A maintenance target input specifying means for specifying an instrument symbol or area of the instrumentation graphic screen of the monitoring target system displayed on the display unit, inputting a maintenance period, and setting a maintenance target apparatus or a maintenance target area;
When the maintenance start time of the maintenance period set by the maintenance target input designating means is reached, the corresponding maintenance target device symbol or the corresponding region on the instrumentation graphic screen based on the set maintenance target device or the maintenance target region A maintenance status display means for attaching a maintenance mark to a maintenance target device symbol existing in the system and displaying a predetermined monitoring status;
When a predetermined event occurs during maintenance work, a generated event message providing means for flashing a maintenance mark of the maintenance target device symbol corresponding to the generated event and writing and displaying an alarm message regarding the generated event in the monitoring status And a supervisory control system characterized by comprising: The monitoring control system according to claim 1,
The monitoring status display means displays a maintenance period (maintenance start date / time / maintenance end date / time) set by the maintenance target input designation means in a window on an instrument graphic screen. The monitoring control system according to claim 1,
The occurrence event message providing means writes and displays a warning message regarding the occurrence event in the order of occurrence of a predetermined event during maintenance work or in the order of occurrence of the event divided into the maintenance target device and the non-maintenance device. A supervisory control system characterized by: In the supervisory control system according to any one of claims 1 to 3,
When a device in which a predetermined event has occurred during the maintenance work is the device to be maintained, a predetermined mark is added to the head of the alarm message of the device to be maintained, and the device in which the current event is occurring is indicated A monitoring control system, characterized in that the warning message of the maintenance target device is displayed in a color-changed manner or the predetermined mark is blinked. After displaying the instrumentation graphic screen of the monitored system on the display unit, specify the device symbol or area on the instrumentation graphic screen with a pointing device, enter the maintenance period, and specify the maintenance target equipment or maintenance target area. Maintenance target input specification step to be set;
When the maintenance start time of the maintenance period set in the maintenance target input specifying step is reached, a maintenance mark is attached to the maintenance target device symbol on the instrument graphic screen or the maintenance target device symbol existing in the area. A monitoring status display step for displaying the monitoring status;
A maintenance device monitoring characterized by having a generation event message providing step of blinking a maintenance mark of the maintenance target device symbol corresponding to the occurrence event and writing and displaying an alarm message regarding the occurrence event in the monitoring status Method.

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