JP2011039676A - Monitoring device and alarm notifying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring device having an alarm notifying function for confirming the occurrence frequency of failure, during the occurrence of the failure. <P>SOLUTION: A monitoring device 10 for detecting the occurrence of failure of a monitoring object includes an alarm occurrence frequency analyzing part 22 for analyzing the occurrence frequency of failure based on alarm history information. An alarm notification control part 21 sets the output configurations of alarm notification as alarm display configurations or alarm sound configurations based on the occurrence frequency of failure as the analysis result of the alarm occurrence frequency analyzing part 22. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a monitoring device having an alarm notification function for notifying an occurrence of abnormality of a monitoring target.

  2. Description of the Related Art Conventionally, for example, plants and buildings have been provided with monitoring devices that monitor the operating status and state of various devices that are monitored based on data and signals detected from the various devices that are installed. Normally, when a monitoring device detects an abnormality in a monitoring target based on collected data and signals, it displays information on the screen of a display device installed in the monitoring room or outputs an alarm sound from a speaker. Thus, a function for notifying occurrence of an abnormality is provided.

  By such notification of the occurrence of an abnormality, the monitoring staff in the monitoring room can check a malfunctioning device among various devices installed in a plant, a building, or the like. Here, notifying the occurrence of an abnormality of the monitoring target is referred to as an alarm notification for convenience.

  In the conventional monitoring apparatus, the form of alarm notification is the same form regardless of the frequency of occurrence of the abnormality that has occurred. The form of alarm notification means a display form displayed on the screen of a display device or an output form (sound pattern) of an alarm sound. For such an alarm notification, an alarm notification system that changes an alarm sound in accordance with the type of alarm signal has been proposed (see, for example, Patent Document 1).

JP 2008-293110 A

  When a conventional monitoring device detects the occurrence of an abnormality, an alarm notification is executed, so that the monitoring person can confirm the occurrence of the abnormality. Further, by using a system that changes the alarm sound according to the type of alarm signal, it is possible to identify a certain type of abnormality occurrence.

  However, in the monitoring function, one of the important functions is to detect the frequency of occurrence of abnormalities that indicate whether the same type of abnormalities have occurred in the past or how much they have occurred in a certain period of time. is there. That is, if the same abnormality frequently occurs, the device that is the cause of the abnormality may be out of order. In addition, there may be an error in the threshold for determining the occurrence of an abnormality or the setting related to the monitoring point. In either case, countermeasures are required.

  Many monitoring devices have a function of storing history information related to the occurrence of an abnormality, and it is possible to check the frequency of occurrence of an abnormality by searching for the history information. However, when an abnormality occurs, it is difficult for the monitor to determine whether the abnormality is a frequent abnormality. In addition, it is not easy for the monitor to search the history information and check the occurrence frequency of the abnormality. Therefore, even if the monitoring device simply gives an alarm notification, it cannot be immediately determined whether or not the abnormality has occurred at a high frequency, and therefore, the investigation and countermeasure for the occurrence of the abnormality may be delayed.

  Therefore, an object of the present invention is to provide a monitoring device having an alarm notification function that can check the frequency of occurrence of an abnormality when an abnormality occurs.

  An aspect of the present invention is a monitoring device having a function of analyzing the occurrence frequency of an abnormality and notifying an alarm in an output form corresponding to the occurrence frequency when the occurrence of the abnormality is detected.

  A monitoring device according to an aspect of the present invention is based on a detection unit for detecting occurrence of abnormality of a monitoring target, a unit for storing history data of occurrence of abnormality detected by the detection unit, and the history data. Alarm notifying means for setting the output form of the alarm notification based on the frequency of occurrence analyzed by the analyzing means by means for analyzing the occurrence frequency of the abnormality that has occurred and means for executing the alarm notification of the occurrence of the abnormality It is the structure provided with.

  With the monitoring device of the present invention, it is possible to realize an alarm notification function that can check the frequency of occurrence of an abnormality when an abnormality occurs.

The block diagram which shows the structure of the monitoring system regarding embodiment of this invention. The block diagram which shows the principal part of the monitoring apparatus regarding this embodiment. The figure which shows an example of the alarm generation frequency table regarding this embodiment. The figure which shows an example of the alarm display pattern table regarding this embodiment. The figure which shows an example of the warning sound pattern table regarding this embodiment. The flowchart for demonstrating operation | movement of the monitoring apparatus regarding this embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

[Configuration of monitoring system]
FIG. 1 is a block diagram illustrating a main part of a monitoring system according to the present embodiment.

  As shown in FIG. 1, the monitoring system is installed in a facility such as a plant or a building, for example, and has a monitoring device 10 connected to a local area network (LAN) 13. The monitoring device 10 detects the occurrence of an abnormality in the monitoring target and executes an alarm notification process described later. The monitoring device 10 controls the display device 11 and the speaker 12 to execute an alarm notification output operation. The display device 11 and the speaker 12 are installed in a monitoring room, for example.

  Furthermore, the monitoring apparatus 10 collects data and signals transmitted from the local controller (I / O) 14 via the LAN 13. The local controller 14 collects data and signals indicating the operation state (operation state, use state, operation state) of each device 15 installed in a facility such as a plant or a building, and transmits it to the monitoring device 10 via the LAN 13. .

[Configuration of monitoring device]
FIG. 2 is a functional block diagram for explaining the configuration of the monitoring apparatus 10. The monitoring device 10 is roughly divided into a central processing unit (CPU) 20, information table groups 25 to 28 stored in a storage device, and an interface. The interface includes a display control unit 29 that controls the display output of the display device 11 and an alarm sound output unit 30 that controls the audio output of the speaker 12.

  The CPU 20 has various functional units implemented by computer hardware and software. Specifically, the CPU 20 includes an alarm notification control unit 21, an alarm occurrence frequency analysis unit 22, an alarm history storage unit 23, and a data reception unit 24. The data receiving unit 24 receives data and signals transmitted to the monitoring device 10 via the LAN 13. The data receiving unit 24 detects whether or not the received data or signal is an abnormal input value or an abnormality notification signal indicating that the operation state (operation state, use state, operation state) of each device 15 is abnormal. An anomaly detection function is included.

  When an abnormality is detected by the data receiving unit 24, the alarm history storage unit 23 stores the data and signals (hereinafter collectively referred to as abnormality information) in the alarm history table 28 as alarm history information. When the occurrence of an alarm is notified from the data receiving unit 24 in response to the abnormality detection, the alarm occurrence frequency analyzing unit 22 refers to the alarm occurrence frequency table 27 and the alarm history table 28 and analyzes the alarm occurrence frequency.

  The alarm notification control unit 21 refers to the alarm display pattern table 25 and the alarm sound pattern table 26 based on the analysis result (alarm occurrence frequency level) from the alarm occurrence frequency analysis unit 22, and generates an alarm corresponding to the analysis result. Set the display pattern and alarm sound pattern. The display control unit 29 displays alarm screen information in the alarm display pattern set by the alarm notification control unit 21 on the screen of the display device 11. The alarm sound output unit 30 performs voice output from the speaker 12 with the alarm sound pattern set by the alarm notification control unit 21.

[Operation of monitoring device]
Hereinafter, the operation of the monitoring apparatus 10 of this embodiment will be described with reference to the flowcharts of FIGS. 3 to 5 and FIG. 6.

  First, in the system, as shown in FIG. 1, the local controller 14 collects data and signals indicating the operation state (operation state, use state, operation state) of each device 15 to be monitored, via the LAN 13. Transmit to the monitoring device 10.

  In the monitoring apparatus 10, the data receiving unit 24 receives data (operation data and the like) and signals from the monitoring target transmitted via the LAN 13 (step S1). The data receiving unit 24 uses the abnormality detection function to receive an abnormal input value or abnormality notification signal indicating that the operation state (operation status, usage status, operation status) of each device 15 is abnormal in the received data or signal. Whether or not it is included is detected (step S2). Here, if it is not abnormal information, the data receiving part 24 accumulate | stores the received data and signal in the database which is not shown in figure (NO of step S3).

  On the other hand, if the data or signal from the monitoring target is abnormal information indicating an abnormal input value, the data receiving unit 24 notifies the alarm history storage unit 23 and the alarm occurrence frequency analyzing unit 22 of an alarm generation indicating the abnormal information ( YES in step S3). The alarm history storage unit 23 stores the abnormality information in which the abnormality is detected by the data reception unit 24 as alarm history information in the alarm history table 28 (step S4). In this embodiment, it is assumed that alarm history information including past abnormality information is accumulated in the alarm history table 28.

  The alarm occurrence frequency analysis unit 22 analyzes the alarm occurrence frequency with reference to the alarm occurrence frequency table 27 and the alarm history table 28 according to the notification of the alarm occurrence from the data reception unit 24 (step S5). Specifically, the alarm occurrence frequency analysis unit 22 refers to the alarm history table 28 and searches for an occurrence of an abnormality that occurred in the past with the same contents as the occurrence of the abnormality. Further, the alarm occurrence frequency analysis unit 22 refers to the alarm occurrence frequency table 27 to determine whether or not the abnormality is equivalent to the frequent alarm, and the occurrence frequency level (occurrence range of the occurrence frequency) in the case of the frequent alarm. ).

  FIG. 3 is a diagram showing a specific example of the alarm occurrence frequency table 27. In the alarm occurrence frequency table 27, determination criteria for determining the occurrence frequency level are set. The criterion is the number of occurrences of the same abnormality occurring within a certain time or the occurrence interval from the previous time. The alarm occurrence frequency analysis unit 22 determines the occurrence frequency level based on the determination criterion when the occurrence of the abnormality corresponds to a frequent alarm. In the present embodiment, it is assumed that the same abnormality occurs frequently and frequently as the level number is small.

  In the alarm occurrence frequency table 27, an alarm display pattern and an alarm sound pattern corresponding to the occurrence frequency level are set. Upon receiving the analysis result (alarm occurrence frequency level) from the alarm occurrence frequency analysis unit 22, the alarm notification control unit 21 displays the alarm display pattern and the alarm sound pattern corresponding to the occurrence frequency level from the alarm occurrence frequency table 27. The pattern identification information shown is acquired (step S6).

  The alarm notification control unit 21 refers to the alarm display pattern table 25 using the acquired pattern identification information, and sets an alarm display pattern according to the occurrence frequency level of the abnormality occurrence. Further, the alarm notification control unit 21 refers to the alarm sound pattern table 26 using the acquired pattern identification information, and sets an alarm sound pattern according to the occurrence frequency level of the abnormality occurrence.

  FIG. 4 is a diagram showing a specific example of the alarm display pattern table 25. In the alarm display pattern table 25, information indicating an alarm display form for each pattern is registered for each item such as display color, luminance, display size, flicker speed, etc., for alarm screen information displayed when an alarm occurs.

  FIG. 5 is a diagram showing a specific example of the alarm sound pattern table 26. The alarm sound pattern table 26 indicates the alarm sound form for each pattern for each alarm sound output when an alarm occurs, for each item such as sound, volume, volume change presence / absence (gradually decreasing, gradually increasing), automatic stopping / notifying, and the like. Information is registered.

  The display control unit 29 and the warning sound output unit 30 respectively execute warning display and warning sound output according to the pattern set by the warning notification control unit 21 (step S7). That is, the display control unit 29 displays the alarm screen information in the alarm display pattern set by the alarm notification control unit 21 on the screen of the display device 11. The alarm sound output unit 30 performs voice output from the speaker 12 with the alarm sound pattern set by the alarm notification control unit 21.

  Specifically, it is assumed that the alarm occurrence frequency analysis unit 22 analyzes the abnormality occurrence as, for example, a high frequency level (level 1). In this case, the display control unit 29 displays the alarm screen information on the screen of the display device 11 in the alarm display form corresponding to the pattern 1 shown in FIG. That is, alarm information is displayed in a pop-up format, for example, as an alarm window on the screen of the display device 11 with a red display color, high brightness, a large display size, and a fast flicker speed.

  Thereby, the monitor stationed in the monitoring room can recognize the occurrence of the abnormality by confirming the alarm screen information displayed in the pop-up format on the screen of the display device 11. In this case, the monitor can immediately recognize from the alarm display form on the screen that the abnormality is an abnormality with a high occurrence frequency level.

  Further, the alarm sound output unit 30 outputs sound from the speaker 12 in the form of an alarm sound corresponding to, for example, the pattern 1 shown in FIG. That is, a buzzer (type 1) is used to output an alarm sound in a form with a large volume, a gradually increasing volume, and no automatic stop. As a result, the supervisor stationed in the monitoring room immediately recognizes that an abnormality has occurred and that the abnormality has a high occurrence frequency before checking on the screen of the display device 11. Is possible.

  As described above, in the monitoring device according to the present embodiment, when an occurrence of an abnormality is detected from each device such as a plant or a building, the frequency of the occurrence of the abnormality is analyzed, and the same abnormality has occurred frequently in the past. Determine the frequency of occurrence. Based on this occurrence frequency level, it is possible to change the notification pattern used when notifying the occurrence of the abnormality. Specifically, an alarm display pattern which is a display form of alarm screen information displayed on the screen of the display device 11 and an alarm sound pattern of audio output output from the speaker 12 are set according to the occurrence frequency level.

  With such an alarm notification function of the present embodiment, when notifying the occurrence of an abnormality, it is possible to notify the occurrence of a frequent occurrence and the occurrence of an abnormality that is not so (separate occurrence). Therefore, the monitor can recognize whether or not the occurrence of the abnormality is frequent only by checking the screen of the display device 11 when the abnormality occurs. That is, the monitoring device 10 operates the input device, searches the alarm history table 28, and can recognize that a frequent abnormality has occurred without requiring an operation for checking the alarm history information.

  Further, even when the monitor cannot check the screen of the display device 11 when an abnormality occurs, the monitor is urged to frequently generate an abnormality based on the alarm sound pattern of the audio output output from the speaker 12. Can do. In this case, the monitoring staff can confirm the detailed alarm information again on the screen of the display device 11 after tentatively recognizing the frequent occurrence of the abnormality.

  When an abnormality occurs, the name, occurrence time, data value, and signal state attached to the abnormality information such as data or signal in which the abnormality has occurred are stored in the alarm history table 28 as alarm history information. A function of displaying a list of such stored alarm history information on the screen of the display device 11 may be added to the monitoring device 10 of the present embodiment. Further, a function may be added in which alarm history information is searched from the alarm history table 28 by designating a period and points, and the search result is displayed on the screen of the display device 11.

[Other Embodiments]
In the flowchart of FIG. 6, steps S8 and S9 are processes for explaining other embodiments. In this embodiment, the configurations of the system and the monitoring device 10 are the same as those in the above-described embodiment. In the flowchart of FIG. 6, the processes in steps S1 to S7 are the same as those in the above-described embodiment.

  The alarm occurrence frequency analysis unit 22 of the present embodiment refers to the alarm history table 28, analyzes the occurrence frequency level of the occurrence of an abnormality, and then sets a reference value (frequency threshold) in which the occurrence frequency level as an analysis result is set in advance. It is determined whether or not the frequency is extremely high (high frequency level) exceeding the reference value (step S8). As a result of this determination, when the occurrence frequency level is equal to or lower than the reference value, the alarm notification control unit 21 receives the analysis result (alarm occurrence frequency level) from the alarm occurrence frequency analysis unit 22 as described above, and the occurrence frequency The process proceeds to processing for setting an alarm display pattern and an alarm sound pattern corresponding to the level (NO in step S8, S6).

  On the other hand, upon receiving an analysis result indicating an extremely high frequency exceeding the reference value from the alarm occurrence frequency analysis unit 22, the alarm notification control unit 21 stops the alarm notification in the normal alarm display form as described above, Is switched to the alarm notification in the alarm display mode (YES in step S8, S9). That is, the alarm notification control unit 21 sets a special alarm display pattern and outputs it to the display control unit 29.

  As described above, according to the present embodiment, in the case of occurrence of an abnormality with an extremely high frequency where the analysis result of the alarm occurrence frequency analysis unit 22 exceeds the reference value, the above-described normal operation is performed on the screen of the display device 11. Instead of the alarm display pattern in the alarm display form, the alarm screen information is displayed in a special alarm display pattern. Therefore, the monitor can easily recognize that the abnormality is occurring frequently by simply checking the screen of the display device 11 when the abnormality occurs. As a result, the supervisor can immediately take detailed measures by confirming detailed alarm information on the screen of the display device 11.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

10 ... monitoring device, 11 ... display device, 12 ... speaker,
13 ... Local area network (LAN), 14 ... Local controller (I / O),
DESCRIPTION OF SYMBOLS 15 ... Apparatus, 20 ... Central processing part (CPU), 21 ... Alarm notification control part,
22 ... Alarm occurrence frequency analysis unit, 23 ... Alarm history storage unit, 24 ... Data reception unit,
25 ... alarm display pattern table, 26 ... alarm sound pattern table,
27 ... Alarm occurrence frequency table, 28 ... Alarm history table, 29 ... Display control unit,
30: Alarm sound output unit.

Claims (10)

Detection means for detecting the occurrence of an abnormality in the monitoring target;
Means for storing history data of occurrence of abnormality detected by the detection means;
Analysis means for analyzing the frequency of occurrence of the abnormality that has occurred based on the history data;
A monitoring apparatus comprising: an alarm notification unit configured to execute an alarm notification of the occurrence of an abnormality, and to set an output form of the alarm notification based on an occurrence frequency analyzed by the analysis unit. The alarm notification means includes
Output means for outputting an alarm sound as the alarm notification;
The monitoring apparatus according to claim 1, further comprising: a unit configured to set an output form of the alarm sound according to the occurrence frequency of the abnormality that has occurred. The alarm notification means includes
Means for displaying information on the screen of the display device as the alarm notification;
The monitoring apparatus according to claim 1, further comprising a unit configured to set a display form of the information in accordance with a frequency of occurrence of the abnormality that has occurred. The alarm notification means includes
The monitoring apparatus according to any one of claims 1 to 3, further comprising means for displaying information indicating contents of the abnormality occurrence on a screen of the display apparatus. The alarm notification means includes
For each type of abnormality occurrence stored as the history data, including occurrence frequency information storage means for recording information indicating an alarm notification form corresponding to the occurrence frequency,
The monitoring apparatus according to claim 1, wherein an output form of an alarm notification is set based on information corresponding to the occurrence frequency obtained by the analysis means with reference to the occurrence frequency information storage means. The alarm notification means includes
For each type of occurrence of abnormality stored as the history data, including an occurrence frequency information storage unit that records information indicating an output pattern of the alarm sound as an alarm notification form corresponding to the occurrence frequency,
The monitoring apparatus according to claim 2, configured to set an output pattern of the alarm sound based on information corresponding to the occurrence frequency obtained by the analysis means with reference to the occurrence frequency information storage means. The alarm notification means includes
For each type of abnormality occurrence stored as the history data, including an occurrence frequency information storage unit that records information indicating an output pattern of the display form as an alarm notification form corresponding to the occurrence frequency,
The monitoring apparatus according to claim 3, wherein an output pattern of the display form is set based on information corresponding to the occurrence frequency obtained by the analysis means with reference to the occurrence frequency information storage means. The alarm notification means includes
8. The monitoring device according to claim 3, further comprising means for displaying a window for displaying alarm notification information in a pop-up format on the screen of the display device. The alarm notification means includes
Distinguishing between a special alarm notification when the occurrence frequency analyzed by the analysis means is a high frequency exceeding a reference value and a standard alarm notification when the frequency is less than the high frequency,
The monitoring according to claim 1, wherein in the case of the high frequency, the execution of the standard alarm notification is stopped and a specific output form corresponding to the special alarm notification is set. apparatus. An alarm notification method applied to a monitoring device including a detecting means for detecting an abnormality occurrence of a monitoring target,
Processing for storing history data of occurrence of abnormality detected by the detection means;
Based on the history data, processing for analyzing the occurrence frequency of the abnormality that has occurred,
And a process of setting an output form of the alarm notification based on the analyzed occurrence frequency when the alarm notification of the occurrence of the abnormality is executed.

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