JP2002367064A - System for polling control in alarm monitoring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a polling control system which enables an alarm monitor device to lighten the load on an alarm monitor device and perform efficient monitoring when monitoring an alarm that a monitored object generates under its control. SOLUTION: Alarms generated in monitored objects 21 to 2n are degenerated according to previously set priority and reported by an alarm notification interface 41 to an alarm detection part 14 of the alarm monitor device 11. The alarm detection part 14 specifies a monitored object where an alarm is generated and extracts priority information on the alarm, and reports the result to an alarm management part 12. The alarm management part 12 performs polling control over only the monitored object where the alarm is generated corresponding to the priority of the alarm according to the reported result.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polling control system for monitoring an alarm in a system including an alarm monitoring device and a plurality of objects to be monitored.

[0002]

2. Description of the Related Art Conventionally, in polling control in alarm monitoring of a system including an alarm monitoring device and a plurality of monitored objects, the alarm monitoring device sequentially polls the monitored objects at a fixed period to determine whether or not there is an alarm. It is constantly monitored.

FIG. 3 is a block diagram showing an example of a configuration of a conventional polling control system used for alarm monitoring in a system.

The conventional polling control method shown in FIG.
Alarm monitoring device 11 for monitoring alarms and monitored objects 21 and 2
n, a polling interface 31 is provided between the alarm monitoring device 11 and the monitored objects 21 to 2n. The alarm monitoring device 11 includes the monitored objects 21 to 2
In order to monitor the presence or absence of the alarm generated in n, the polling interface 31 performs monitoring at a fixed period.
This monitoring cycle is a fixed cycle regardless of the alarm generation status of the monitored objects 21 to 2n.

Further, in the case where a polling interface is provided as in FIG. 3 and the alarm monitoring device detects an alarm, the priority of the alarm which has generated the number of polls within a predetermined period for the monitored object where the alarm has occurred is given. A method of increasing the number according to the above is disclosed in Japanese Patent Application Laid-Open No. H11-136272. This method is also similar to the case described above with reference to FIG. 3 in that all monitored objects are constantly monitored.

[0006]

In the conventional polling control system as described above, the monitored objects are sequentially polled, and when an alarm of high urgency is generated in the monitored object, an alarm is generated. By adjusting the number of times of polling control for the monitored object, it is possible to perform effective monitoring of the alarm to some extent after the recognition of the occurrence of the alarm, but poll all the monitored objects including the monitored object for which no alarm has been generated. Therefore, there is a problem that the efficiency of alarm collection is low as a system.

[0007] In addition, if an alarm is generated immediately after the own device is polled in the monitored object whose polling control frequency is not adjusted, it is not possible to notify until the next polling, and the alarm is monitored after the alarm is generated. There is a problem in that a time delay occurs before the notification is made to the device, and it is not possible to quickly take appropriate measures for the alarm.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the present invention reduces the load on an alarm monitoring device when the alarm monitoring device monitors an alarm that occurs in a monitored object under the alarm monitoring device. An object of the present invention is to provide a polling control method capable of performing efficient monitoring.

[0009]

According to the first aspect of the present invention,
In a polling control system of a system including an alarm monitoring device and a plurality of monitored objects, each of the monitored objects has an alarm notification interface for notifying the alarm monitoring device of the presence or absence of an alarm.

According to a second aspect of the present invention, the alarm generated in each of the monitored objects is replaced with a bit signal indicating a predetermined priority, and a frame signal composed of the bit signals for each of the monitored objects is replaced with the alarm signal. It is transmitted to a monitoring device.

The invention according to claim 3 is characterized in that the alarm monitoring device determines a polling cycle according to the priority of alarms received from the respective monitoring targets.

The invention according to claim 4 is characterized in that the alarm monitoring device performs polling control only on the monitored object for which an alarm has occurred.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a system configuration according to the embodiment of the present invention. Referring to FIG. 1, the alarm monitoring device 11 includes a plurality of monitored objects 21 to 2
n is connected by a polling interface 31 and an alarm notification interface 41. Monitored object 21
2 to 2n are provided with alarm processing units 51 to 5n for monitoring the alarm in the own device and determining whether the collected alarm is a high-priority alarm or a low-priority alarm, and transmitting the information by the alarm notification interface 41. ing.

The alarm monitoring device 11 includes the monitored objects 21 to 2
n, an alarm detection unit 14 that detects the presence or absence of an alarm from the monitoring target unit 21, a monitoring control unit 13 that manages polling control for the monitored objects 21 to 2n, a history management at the time of alarm generation and recovery, and a priority of the generated alarm. An alarm management unit 12 for adjusting polling control is provided.

Next, the operation of this embodiment will be described in detail with reference to the drawings.

When an alarm is generated in any one of the monitored objects 21 to 2n, the alarm processing units 51 to 5n in the own device set a high-priority alarm preset as information for notifying the alarm monitoring device 11 of the alarm information. Alternatively, the information is degenerated and stored in the low priority alarm information. This degeneration information is notified to the alarm detection unit 14 of the alarm monitoring device 11 by the alarm notification interface 41.

As shown in an example of the alarm notification frame from each monitored object in FIG. 2, the notifying means of the alarm notification interface 41 determines whether or not the monitored objects 21 to 2n have an alarm for each of the monitored objects. And a low-priority alarm two-bit notification serial data frame structure. Therefore, in order to notify the occurrence of an alarm in all of the monitored objects 21 to 2n, a frame configuration is used in which the number of bits (2n × 2 bits) that is twice the number of monitored objects is one frame.

The alarm monitoring device 11 includes the monitored objects 21 to 2
n alarm information is collected by the alarm notification interface 41, the alarm detection unit 14 specifies the monitored object in which the alarm is occurring, extracts the alarm priority information, and notifies the alarm management unit 12 of the result. . The alarm management unit 12 determines a polling cycle according to the priority of the alarm generated for the specified monitored object, and notifies the monitoring control unit 13.
The alarm management unit 12 stores a detailed alarm history from the monitoring control unit 13. The monitoring control unit 13 includes the alarm management unit 1
The polling is performed by the polling interface 31 at the polling cycle determined in step 2, and the monitored objects 21 to 2n
The alarm information stored in the alarm processing units 51 to 5n is collected.

The alarm monitoring device 11 includes the monitored objects 21 to 2
While the alarm n is being generated, polling control is performed only for the specified monitored object according to the generated alarm. If all alarms have been recovered, polling can be stopped.

In this embodiment, an alarm monitoring device and a plurality of devices under the control of the alarm monitoring device are monitored in the system. However, as another embodiment of the present invention, each device constituting the system includes: Furthermore, the same polling control can be applied to the internal monitoring of each package such as an interface panel and a control panel constituting each function in the apparatus. Also in this case, the basic configuration and control contents are as described above, and the same effects can be obtained.

Further, in the case where an alarm is generated at a plurality of places in the system to which the present invention is applied, monitoring by polling is more accurately performed by subdividing the priority order of the alarm generated within the monitored object. be able to. For example, when the alarm priority is set to five levels, the polling cycle after detecting the alarm can be set more finely than in the above-described two levels (high-priority alarm and low-priority alarm), so that the polling corresponding to the priority can be performed more flexibly. Control can be performed.

As described above, in the present embodiment, an alarm notification interface for notifying the presence or absence of a high-priority or low-priority alarm in each monitored object unit is provided, so that the number of monitored objects can be reduced by two. Since the frame configuration can be made into one frame with double the number of bits (FIG. 2), a short-cycle alarm notification can be made. Therefore, when an alarm is generated in the monitored device, the alarm monitoring device can specify the alarm generation target in a shorter time than the conventional polling control.

Further, in this embodiment, the alarm monitoring device specifies the monitored object in which the alarm has occurred, and at the same time, the alarm generated in the monitored object corresponds to either the high-priority alarm or the low-priority alarm. Is determined, and polling control is performed according to the priority, so that more efficient and more efficient collection of alarm information can be performed as compared with conventional polling control.
For this reason, even if an alarm is frequently occurring in the monitored object, it is not necessary to hold a large amount of alarm information,
It is also possible to reduce the memory capacity for holding alarm information.

In this embodiment, since the polling control is not performed on the monitored object for which the generation of the alarm is not confirmed by the alarm notification interface, only the monitored object during which the alarm is generated can be monitored in a short period. Therefore, efficient constant monitoring can be performed, and processing at the time of alarm recovery can be performed instantaneously.

Further, in this embodiment, when no alarm is generated for the monitored object, the polling control for the monitored object can be stopped, and the load on the alarm monitoring device during normal times can be reduced. Can be reduced.

[0026]

As described above, according to the polling control method of the present invention, in the polling control of a plurality of objects to be monitored, the alarm monitoring device can perform efficient constant monitoring by collecting information when an alarm occurs. At the same time, the load on the alarm monitoring device can be reduced according to the alarm generation state.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a system configuration according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a configuration of an alarm notification frame transmitted from each monitored object.

FIG. 3 is a block diagram showing a configuration of a conventional polling control system.

[Description of Signs] 11 Alarm monitoring device 12 Alarm management unit 13 Monitoring control unit 14 Alarm detection unit 21-2n Monitored object 31 Polling interface 41 Alarm notification interface 51-5n Alarm processing unit 61-6n Alarm notification area of monitored object

Claims (4)

[Claims] 1. A polling control system for a system including an alarm monitoring device and a plurality of monitored objects,
A polling control method, wherein each of the monitored objects has an alarm notification interface for notifying the alarm monitoring device of the presence or absence of an alarm. 2. The method according to claim 1, wherein the alarm generated in each of the monitored objects is replaced with a bit signal indicating a predetermined priority, and a frame signal composed of the bit signals for each of the monitored objects is transmitted to the alarm monitoring device. The polling control method according to claim 1, wherein: 3. The polling control method according to claim 2, wherein the alarm monitoring device determines a polling cycle according to a priority of an alarm received from each of the monitoring targets. 4. The polling control method according to claim 1, wherein the alarm monitoring device performs polling control only on the monitored object for which an alarm has been generated.