JPH02239400A - Alarm supervising device - Google Patents

Abstract

PURPOSE:To correctly and effectively grasp and record the behavior of an alarm and to enable restoring processing by integrating the number of times of the continuous detection of the alarm, determining an alarm level and executing an alarm processing for the generated alarm according to the alarm level. CONSTITUTION:An alarm occurrence detecting part 11 samples the alarm in a constant cycle, and inputs alarm presence/absence information to an alarm integration counting part 12. The counting part 12 integrates and records the occurrence state at a sampling point, and sends the information to an alarm deciding part 13. The deciding part 13 compares the integrated value with the deciding value, and as a result, when the integrated value amounts to the deciding value, the part 13 supplies generated alarm level information to an alarm processing part 14. Further the processing part 14 executes the processing according to the alarm occurrence level when the alarm occurs. Thus the behavior of the alarm can be correctly and efficiently grasped and recorded, and the recovery processing can be executed.

Description

[Detailed description of the invention] [Mechanism] Has a number of alarm points to be monitored. Regarding alarm monitoring equipment that performs alarm logging or execution of alarm processing when an alarm occurs. Even with limited monitoring system resources, it is possible to accurately and efficiently understand the behavior of alarms when they occur while confirming the normality of the monitored target. The purpose is to record and enable recovery processing.
An alarm detection section that samples the monitoring target at a predetermined period to detect the presence or absence of an alarm, and an alarm integration counter section that adds up the number of consecutive alarm detections of alarms detected by the alarm detection section. an alarm judgment section that defines an alarm level based on the continuous alarm accumulation value of the alarm, and judges the alarm level of the generated alarm according to the continuous alarm accumulation value accumulated by the alarm accumulation counting section; and an alarm processing section that performs alarm processing according to the alarm level. [Industrial Field of Application] The present invention relates to an alarm monitoring device that has a number of alarm points to be monitored and performs alarm logging or execution of processing when an alarm occurs.

It is essentially difficult to accurately grasp and record alarm behavior within monitoring system resources that have limited CPU processing power, memory capacity, etc. This is especially true in large-scale systems, where the hardware is large and the number of alarm points that must be monitored is large.

Therefore, alarm monitoring equipment is useful even among limited monitoring system resources. It is necessary to be able to accurately and efficiently understand and record alarm behavior, and perform recovery processing while confirming the normality of the monitored object.

[Conventional technology]

In conventional alarm monitoring devices, when an alarm occurs, it is difficult to determine whether it is a single alarm with a short alarm duration, a continuous alarm with a long alarm duration2, or a continuous occurrence of single alarms. Regardless, the alarm occurrence/ijt old information is simply vaguely recorded (logged) in memory and recovery processing is performed.

[Problems that the invention attempts to solve]

Conventional alarm monitoring devices produce many single alarms. If alarms occur continuously, the number of alarms logged to memory simply increases. In such a case, since the capacity of the logging area of the memory is limited, it becomes impossible to log all alarm information. For this reason, if you use a method that erases previous logging information and logs information about currently occurring alarms, logging information about important alarms that occurred previously may be erased.
There is a possibility that no countermeasures are taken against these important alarms.

In addition, just by looking at the alarm that is currently occurring, you can only know whether the alarm is in the generated or recovered state, so it is necessary to systematically understand the exact behavior of the alarm, including the time factor. Therefore, appropriate measures cannot be taken in response to alarms.

therefore. The purpose of the present invention is to accurately and efficiently understand the behavior of alarms when they occur, while confirming the normality of one monitoring target even among limited monitoring system resources. The purpose is to record and enable recovery processing.

[Means to solve the problem]

FIG. 1 is a diagram explaining the principle of the present invention.

The alarm monitoring device according to the present invention includes an alarm detection unit 11 that samples a monitoring target at a predetermined period and detects the presence or absence of an alarm. an alarm integration counter unit 12 that integrates the number of continuous alarm detections of alarms detected by the alarm detection unit 11; and an alarm integration counter unit 12 that defines alarm levels Ll, L2, L3 based on the continuous alarm integration value of the alarm The alarm determining section 13 determines the alarm level of the generated alarm according to the continuous alarm integrated value accumulated by the alarm determining section 13, and the alarm processing section 14 performs alarm processing according to the alarm level determined by the alarm determining section 13. It will be done.

[Operation] The alarm detection unit 11 samples the monitoring target at a predetermined period to detect the presence or absence of an alarm. The number of consecutive detections of this alarm "present" is accumulated by the alarm accumulation counter 12. The alarm determination section 13 determines this continuous alarm integrated value to determine the alarm level of the 5 alarms. Depending on this alarm level, alarm processing is performed for the generated alarm. This makes it possible to accurately and efficiently understand and record alarm behavior and perform recovery processing.

〔Example〕

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

FIG. 2 shows an alarm monitoring device as an embodiment of the present invention. In Fig. 2, 1 is an alarm occurrence detection section. Reference numeral 2 denotes an alarm integration counting section, 3 an alarm establishment determination section, and 4 a processing determination section when an alarm occurs.

The alarm occurrence detection unit l is configured to receive alarm signals a, b, and c from multiple monitoring targets, and samples these alarm points a, b, and c at regular intervals, and detects the alarm signals at each sampling point. Alarm occurrence/recovery information (that is, alarm detection information on the presence or absence of an alarm) is recorded for each alarm, and this alarm occurrence/recovery information is passed to the alarm integration counting section 2.

The alarm integration counting unit 2 uses the alarm occurrence/recovery information passed from the alarm occurrence detection unit 1 to each alarm a and b.
, c are integrated and recorded. That is, based on the alarm detection signal from the alarm occurrence detection unit 1, the cumulative number of continuous alarm detections due to continuous occurrence of alarms or the continuous cumulative number of alarm "absence" detections are recorded.

Then, the alarm successive occurrence information is passed to the alarm establishment determination section 3.

In the alarm establishment determination section 3. Alarm occurrence level L, which divides the number of consecutive alarm detections into multiple stages (levels)
l, L2, and L3 are defined. The alarm establishment determination unit 3. The input continuous alarm occurrence information is compared with a predetermined alarm establishment determination condition to determine the alarm occurrence levels L1, L2, and L3 of the alarm occurrence, and the alarm occurrence level information is passed to the alarm occurrence processing determining section 4. Here, alarm generation level Ll. L2. L3 is defined in three stages: LL. The continuity of alarms increases in the order of L2 and L3.

The alarm occurrence processing determining unit 4 includes an alarm establishment determining unit 3
Based on the alarm occurrence level information passed from. Alarm a according to the alarm generation level for the generated alarm
, b, and c.

The operation of the apparatus of the first embodiment will be explained below.

It is now assumed that an alarm is occurring at alarm points a and b. The alarm occurrence detection unit 1 samples alarms at regular intervals, detects the states of alarm points a, b, and c, and detects the states of alarm points a, b, and c. If the occurrence status is "occurrence", "l". If the occurrence is "no", it is recorded as "O'". This alarm occurrence/non-occurrence information is passed to the alarm integration counting section 2.

In the alarm integration counting section 2, each alarm point a, b,
Regarding c, the presence/absence of occurrence at each sampling point is accumulated and recorded. In the example, alarm points a and b are each in the state of 30 consecutive alarms, and alarm point C
indicates that the alarm "no" state continues seven times in a row. These continuous alarm "presence" information is then passed to the alarm establishment determination section 3.

The alarm establishment determination unit 3 detects each alarm point a, b, and C.
Compare the alarm generation "presence" integrated value with the alarm establishment judgment value. The alarm establishment determination value is defined separately for each alarm point a, b, and C, as shown in FIG. For example, regarding alarm point a. Level L
For 1, the establishment judgment value is 10, level L2 is 20, level L3
is 30, and for alarm point b, the establishment judgment value for level Ll is 5, level L2 is 30, and level L3 is 50.
, for alarm point C. Level L1 is 3, Level L
2 is 6, and level L3 is 12.

As a result of comparing this alarm establishment judgment value with the accumulated alarm occurrence value, if the alarm occurrence accumulation judgment value reaches the alarm establishment judgment value. The generated alarm is determined to be the alarm generation level of the alarm establishment determination value. In this example, alarm point a has been in the alarm "present" state 30 times in a row. The alarm level is L3. alarm point b
The alarm has been in the ``exist'' state 30 times in a row. The alarm generation level is L2. Since the alarm occurrence state has not been detected at alarm point C, no alarm occurrence level is assigned.

This alarm occurrence level information is then passed to the alarm occurrence processing determining section 4. In the alarm occurrence processing determining section 4. For each alarm point, the processing to be performed when an alarm occurs is determined based on the alarm occurrence level. For example, as shown in FIG. 2, for level L3 of alarm point a, processing A2, A3. and alarm logging processing are performed, and for level L2 of alarm point b, processing b and alarm logging processing are performed. FIG. 3 shows an example in which each alarm point is judged as an alarm using the above-mentioned embodiment device. As shown in the figure, alarms ALM1, . ALM2. Assume that ALM3 occurs in chronological order. In this example, the alarm judgment level of the alarm is represented by the continuity judgment value by the duration, and the duration is t.
If it is 1 or more, level LL, if it is t2 or more, L2, t
If it is 3 or more, it is determined to be L3. Therefore, as shown in the diagram. Alarm ALM is determined to be level Ll, and alarm A
LM2 is determined to have transitioned from level L1 to level L2, alarm ALM3 is determined to have transitioned from levels L1 and L2 to level L3, and these pieces of information are logged. Although the embodiment device has been described above, the alarm monitoring device of the present invention can be realized either by a hardware configuration using an electric circuit or by a software configuration using a processor.

〔Effect of the invention〕

According to the present invention, alarm behavior can be accurately and efficiently understood and recorded. Therefore, the number of alarm logging cases can be reduced. Rough analysis of alarms based on the currently occurring alarm level is facilitated, and alarm behavior can be easily reproduced.

[Brief explanation of drawings]

Fig. 1 is a diagram explaining the principle of the present invention, Fig. 2 is a block diagram showing an alarm monitoring device as an embodiment of the invention, and Fig. 3 is a diagram showing a sequence of alarm judgments by the embodiment device. In the figure, 1 - Alarm occurrence detection unit 2 - Alarm establishment determination unit 3... - Alarm establishment determination unit 4 - Alarm occurrence processing determination unit Figure 1.

Claims (1)

[Claims] An alarm detection unit (11) that samples a monitoring target at a predetermined period to detect the presence or absence of an alarm, and an alarm detection unit (11) that integrates the number of consecutive alarm detections of alarms detected by the alarm detection unit (11). The alarm level (L1, L2, L3) is defined based on the alarm integration count unit (12) and the continuous alarm integration value of the alarm, and the alarm level (L1, L2, L3) is defined based on the continuous alarm integration value accumulated by the alarm integration count unit (12). an alarm determining section (13) that determines the alarm level of the generated alarm; and an alarm processing section (14) that performs alarm processing according to the alarm level determined by the alarm determining section (13). Monitoring equipment.