JPH04286098A - Alarm monitoring system - Google Patents

Abstract

PURPOSE:To provide sufficient log area capacity of a memory for the alarm generation at the time of abnormabity occurring intermittently and to preserve important log recording without fail in the alarm monitoring system of a monitoring device which has points for generating the alarm at the time of abnormality of monitoring object, and records and processes the log recording in accordance with the generation and restoration of the alarm. CONSTITUTION:According to the alarm generation frequency in fixed time, the alarm restoration condition is changed and the recording of the log is controlled.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm monitoring method in a monitoring device that has a number of points for issuing an alarm when an abnormality occurs in a monitored object, and performs recording processing in accordance with the generation and recovery of an alarm.

[0002] The above-mentioned monitoring device uses limited resources such as CPU processing power and memory capacity to confirm the normality of the monitored object, and to accurately and effectively grasp and record the occurrence of an alarm in the event of an abnormality. , it is necessary to perform recovery processing accurately and effectively even when normal recovery occurs.

0003

[Prior Art] The alarm monitoring method of conventional monitoring equipment is as follows:
Although not shown in the figure, the generation of an alarm when something goes wrong in the monitored object and the recording process when it is restored are vaguely performed.

0004

[Problems to be Solved by the Invention] In the conventional alarm monitoring system, when an alarm occurs in an abnormal situation that occurs intermittently, the number of so-called logs that record the occurrence of alarms simply increases, and the memory becomes insufficient. There were problems such as insufficient log area capacity and important log records being deleted. SUMMARY OF THE INVENTION An object of the present invention is to provide an alarm monitoring system in which the capacity of a log area of a memory is sufficient for generating alarms in the event of an abnormality that occurs intermittently, and in which important log records are reliably saved.

[0005]

[Means for solving the problem] As shown in the principle diagram of Fig. 1, this purpose is to perform sampling at regular intervals for multiple alarms of alarms occurring intermittently,
An alarm occurrence detection unit 1 outputs the occurrence and recovery information for each alarm based on the sampling results, and receives the alarm occurrence and recovery information and counts for a certain period of time to detect the occurrence and recovery of intermittent alarms. an alarm counting section 2 that outputs information on continuous recovery of alarms and cumulative information on occurrence and recovery of alarms, and an alarm recovery condition determining section that receives the cumulative information on alarms and determines alarm recovery conditions. 4, and an alarm determination unit 3 that receives the recovery condition information of the alarm, the information on the occurrence and recovery of the intermittent alarm, and the information on the continuous recovery of the alarm and determines whether to send or stop the alarm. This is achieved by the present invention.

[0006]

[Operation] In the present invention, instead of vaguely performing recording and recovery processing at the time of alarm occurrence and recovery, the alarm occurrence detection section 1 and alarm count section 2 calculate the frequency of alarm occurrence within a certain period of time. , the alarm recovery condition determination unit 4 changes the conditions for recovery processing at the time of recovery according to the frequency, and suppresses the recording of logs in the memory. Then, the alarm determination unit 3 receives the alarm recovery condition information from the alarm recovery condition determination unit 4 , the information on intermittent alarm generation and recovery from the alarm count unit 2 , and the information on continuous alarm recovery. Based on the information, the alarm generation/recovery is determined.

[0007]

Embodiment FIG. 2 is a block diagram showing the configuration of an alarm monitoring system according to an embodiment of the present invention. In the figure, 1 is an alarm occurrence detection section, 2 is an alarm count section, 3 is an alarm judgment section,
Reference numeral 4 denotes an alarm recovery condition determination unit, and the table in the figure shows information to be passed to the next block. Furthermore, there are three types of alarm points: a, b, and c.

[0008] Now, when an alarm is generated at alarm points a and b, the alarm occurrence detection section 1, which samples the alarm at regular intervals, reads out the states of alarm points a, b, and c and determines the alarm point. The occurrence/recovery information for each occurrence is recorded as ``1'' if it occurs and ``0'' if it is recovered. Next, the alarm count unit 2 calculates the occurrence/count of each alarm point.
Accumulate and record recovery information and continuous recovery information. In this example, the cumulative information of alarm occurrence/recovery is as follows: alarm occurrence is a=30, b=25, c=20 times, alarm recovery is a=0, b=5, c=10 times, and alarm Continuous recovery information is a=0, b=0,
This shows that c=5 times. Next, the alarm determination unit 3 determines occurrence/recovery of an alarm based on occurrence/recovery information for each alarm point, continuous recovery information, and recovery condition information. In this embodiment, the alarm point a is in the middle of an alarm occurrence, the alarm point b is recovered by the alarm occurrence detection section 1, and the alarm count section 2 is recovered five times in a row, but the recovery conditions are
Since this occurs 10 times in a row, it is determined that an alarm is occurring. At alarm point c, the alarm occurrence detection unit 1 recovers, and the alarm count unit 2 recovers 5 times in a row, and since the recovery condition is 5 times in a row, it is determined that the alarm has recovered, and a log is recorded. The contents of the log that is recorded include recovery conditions. Further, the alarm recovery condition determination unit 4 determines alarm recovery conditions based on the cumulative alarm occurrence/recovery information for each period, and passes the alarm recovery condition information to the alarm determination unit 3 . In this embodiment, the alarm determination unit 3 that was operating based on the alarm recovery condition information 41 this time will operate based on the alarm recovery condition information 42 from the next time onwards.

[0009]

[Effects of the Invention] As explained above, according to the present invention, the alarm recovery conditions are changed depending on the frequency of alarm occurrence, so that the number of logs of intermittent alarms is reduced. ■
Effects such as rough analysis of alarms based on log contents can be obtained.

[Brief explanation of the drawing]

[Figure 1] Principle diagram showing the basic configuration of the alarm monitoring system of the present invention

FIG. 2 is a flow diagram for explaining the configuration and operation of an alarm monitoring system according to an embodiment of the present invention.

[Explanation of symbols]

1 is an alarm occurrence detection section, 2 is an alarm count section, 3
4 is an alarm determination section, and 4 is an alarm recovery condition determination section.

Claims (1)

[Claims] [Claim 1] Sampling is performed at regular intervals for multiple alarms of alarms occurring intermittently,
There is an alarm occurrence detection section (1) that outputs the occurrence and recovery information for each alarm based on the sampling results, and an alarm occurrence detection section (1) that receives the alarm occurrence and recovery information and counts for a certain period of time to detect the occurrence of intermittent alarms. Alarm count unit (2) that outputs recovery information, continuous alarm recovery information, and cumulative information on occurrence and recovery of the alarms.
, an alarm recovery condition determination unit (4) that receives cumulative information of the alarm and determines the recovery condition of the alarm, information on the recovery condition of the alarm, information on the occurrence and recovery of the intermittent alarm, and a succession of alarms. an alarm determination unit (3) that determines whether an alarm is generated or restored based on information on recovery.