JP2001223722A - Centralized fault monitor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a centralized fault monitor system wherein the alarm message gathering processing of a centralized monitor device does not congest when monitored devices generate many alarms. SOLUTION: A monitored device group 3 has devices 4a, 4b, 4c, and 4n as objects of management scattered in a network 1. The centralized monitor device 2 monitors the monitored device group 3 at one place. Alarm processing parts 9a to 9n judge congestion when predetermined alarms 7a to 7n are sent within a certain time. Communication processing parts 8a to 8n perform alarm message transmitting processings by polling and storing processing for unsent alarm messages during the congestion. A communication processing management section 21 receives messages 5a to 5n from the respective devices 4a to 4n and sends polling signals 6a to 6n.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centralized fault monitoring system, and more particularly to a centralized fault monitoring system in which, when a large number of alarms are generated from monitored devices, the centralized monitoring device does not congest the collection of alarm messages.

[0002]

2. Description of the Related Art In recent years, it has been required to quickly detect faults of a plurality of monitored objects constituting a network and to monitor the fault information without congestion.

As an example of such a monitoring technique, a “network fault monitoring system” described in Japanese Patent Application Laid-Open No. H11-68751 is known.

FIG. 5 is a block diagram showing a conventional concentrated fault monitoring system.

In the conventional centralized fault monitoring system, a monitored device group 33 having a plurality of devices 38a, 38b, 38c, and 38n as management targets scattered in a network 31, and a monitored device group 33 are centralized. And a centralized monitoring device 32 for monitoring. In the centralized monitoring device 32, a communication processing unit 35 that receives data from each of the devices 38a to 38n and transmits a response signal, and a communication processing unit 3
5 has an alarm processing unit 34 for performing an alarm process when an alarm is detected in the received data.

The conventional centralized fault monitoring system having such a configuration operates as follows.

The alarm processing unit 34 outputs a congestion control signal 36 indicating congestion to the communication processing unit 35 when alarm processing is congested. In response to this, the communication processing unit 35 receives the alarm messages 37a, 37b, 37 from the monitored device group 33.
The collection of c and 37n is temporarily stopped. When the congestion is released, the alarm processing unit 34 notifies the communication processing unit 35 of a congestion control signal 36 indicating the release of the congestion. The communication processing unit 35 resumes monitoring and outputs the alarm messages 37a, 37b, 37
c and 37n are collected again.

[0008]

In the above-mentioned conventional centralized fault monitoring system, a large amount of alarm messages are generated on the monitored device group side because the monitored device group side does not perform prior control on congestion. In this case, since the data is transmitted to the centralized monitoring device as it is, there is a disadvantage that congestion occurs on the centralized monitoring device side.

In addition, since the centralized monitoring device itself causes the congestion, and the control of the congestion is not performed for each of the monitored device groups, if the congestion occurs on the centralized monitoring device side, the congestion may be caused. This has the disadvantage that it also affects the monitoring of other devices other than the device described above.

[0010] An object of the present invention is to switch the collection processing of alarm messages to polling from a centralized monitoring device when a large number of alarms are generated from a group of monitored devices, so that the alarm message collection processing of the centralized monitoring device becomes congested. It is an object of the present invention to provide a centralized fault monitoring method that does not require any means.

[0011]

A centralized fault monitoring system according to the present invention includes a plurality of devices to be monitored scattered in a network, and a centralized monitoring device for centrally managing the plurality of devices. If the alarm message randomly notified from the device to be monitored to the centralized monitoring device is congested, the centralized monitoring device switches to alarm message reception control by polling signal transmission, and if the alarm message is not congested, the The transmission of the polling signal is stopped, the normal monitoring is restarted, and the alarm message is randomly received.

[0012] A network, a monitored device group having a plurality of devices as management targets scattered in the network, and a centralized monitoring device for centrally monitoring the monitored device group are provided. Each of the plurality of devices includes:
When a predetermined alarm message is transmitted within a certain period of time, an alarm processing unit that determines that the apparatus is in a congestion state and outputs a congestion notification signal during the congestion, and transmits and receives an alarm message by a polling signal from the centralized monitoring device during congestion. A communication processing unit that stores an alarm message for transmission, receives communication of the alarm message from each of the plurality of devices in the centralized monitoring device, and transmits a plurality of polling signals. It is characterized by having a processing management unit.

[0013] Each of the plurality of devices in the monitored device group includes the alarm processing unit and the communication processing unit connected thereto.

In the alarm processing unit of each of the plurality of devices, when transmitting a first alarm message to each of the communication processing units, a predetermined number of alarms or more are transmitted within a predetermined period. If it is determined that a congestion state is caused to transmit a message, the communication processing unit transmits the congestion notification signal before transmitting the first alarm message, and then transmits a second alarm message to the communication processing unit. The second alarm message to notify the communication processing management unit of the centralized monitoring device that switching to the alarm message reception by polling is performed after the second alarm message received immediately after receiving the congestion notification signal. Transmitting a third alarm message with the information of the polling request to the communication processing management unit; In the communication processing management unit that has received the record, it is characterized in that switching of a method in which a receiving polling the alarm message.

When the alarm processing unit of each of the plurality of devices determines that the alarm message is not in a congestion state, the alarm processing unit transmits a congestion release notification to the communication processing unit.
Upon receiving the congestion release notification, the communication processing unit adds polling release information to the alarm message when the first alarm message is received after receiving the congestion release notification, and subsequent alarm messages are transmitted randomly. Notifying the communication processing management unit of the centralized monitoring device that the communication processing management unit stops transmitting the polling signal, and switches to a method of sequentially processing the alarm message transmitted randomly. I have.

Further, the present invention is characterized by a network transmission system using a centralized fault monitoring system.

[0017]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the centralized fault monitoring system according to the present invention.

The present embodiment shown in FIG. 1 includes a network 1, a monitored device group 3 having a plurality of devices 4a, 4b, 4c, and 4n as management targets scattered in the network 1, and a monitored device group 3. And a centralized monitoring device 2 for centrally monitoring the monitoring device group 3.

The devices 4a to 4n in the monitored device group 3
Respectively transmit alarm messages 7a, 7b, 7c, 7n within a predetermined period of time, and determine alarm processing units 9a, 9b, 9c, 9n that are in a congestion state. It has communication processing units 8a, 8b, 8c, 8n for performing an alarm message transmission process and a storage process for untransmitted alarm messages, and includes devices 4a, 4b, 4c, and 4n in the centralized monitoring device 2. Alarm message 5 from each of
a, 5b, 5c, 5n reception and polling signal 6
a, 6b, 6c, 6n, a communication processing management unit 21 for transmitting
have.

FIG. 2 is a sequence diagram showing the operation of FIG.

Next, the operation of the present embodiment will be described in more detail with reference to FIGS.

First, in the normal state, the alarm message 7a transmitted from the alarm processing unit 9a in the device 4a
Is transmitted as an alarm message 5a from the communication processing unit 8a of the device to the communication processing management unit 21 of the centralized monitoring device 2.

Similarly, the alarm processing unit 9b in the device 4b
Is transmitted from the communication processing unit 8b in the same device as the alarm message 5b to the communication processing management unit 21 of the centralized monitoring device 2, and the device 4c
The alarm message 7c transmitted from the alarm processing unit 9c in the communication management unit 2 of the centralized monitoring device 2 is converted into an alarm message 5c by the communication processing unit 8c in the device.
1, the alarm message 7n transmitted from the alarm processing unit 9n in the device 4n is transmitted from the communication processing unit 8n in the device 4n to the communication processing management unit 21 of the centralized monitoring device 2 as the alarm message 5n.

The communication processing management unit 21 of the centralized monitoring device 2 randomly generates alarm messages 5a, 5b, 5c, 5 from the devices 4a, 4b, 4c, and 4n.
n.

FIG. 3 is a diagram for explaining the operation when the alarm processing in FIG. 1 is congested.

Next, the operation at the time of alarm processing congestion will be described using the apparatus 4a as an example.

When transmitting the alarm message 7a to the communication processing unit 8a, the alarm processing unit 9a of the device 4a transmits more than a predetermined number of alarm messages within a predetermined period, and congestion occurs. If it is determined that the state will be changed, the congestion notification 10 is transmitted to the communication processing unit 8a before transmitting the alarm message 7a, and then the alarm message 7a 'is transmitted. Regarding the alarm message 7a 'received immediately after receiving the congestion notification 10, the communication processing unit 8a sets an alarm to notify the communication processing management unit 21 of the centralized monitoring device 2 that the alarm message 7a' will be received by polling thereafter. An alarm message 5a 'obtained by adding polling request information to the message 7a' is transmitted to the communication processing management unit 21. Upon receiving this, the communication processing management unit 21 of the centralized monitoring device 2
The method switches to a method of receiving alarm messages by polling.

Next, the communication processing management unit 2 of the centralized monitoring device 2
1 sends a polling signal 6 to the communication processing unit 8a of the device 4a.
When the device 4a receives the polling signal 6a 'and transmits the polling signal 6a',
The alarm message 7a ″ is transmitted to the communication processing management unit 2 of the centralized monitoring device 2 from the communication processing unit 8a of the device 4a.
1 is sent an alarm message 5a ''.

Upon receiving this, the polling 6a ″ is transmitted from the communication processing management section 21 of the centralized monitoring apparatus 2 to the communication processing section 8a of the apparatus 4a, and when the polling 6a ″ is received, the apparatus 4a is switched to the alarm processing section. 9a to communication processing unit 8
The alarm message 7a '''is transmitted to the device 4a.
The alarm message 5a '''is transmitted from the communication processing unit 8a of the communication device a to the communication processing management unit 21 of the centralized monitoring device 2.
By repeating the above operation, the failure information is collected between the centralized monitoring device 2 and the device 4a of the monitored device group 3 by polling.

FIG. 4 is a diagram for explaining the operation when the alarm processing congestion is released in FIG.

The alarm processing unit 9a of the device 4a transmits a congestion release notification 20 to the communication processing unit 8a when it is determined that the alarm messages can be transmitted within the preset number and the congestion state is not reached. This congestion release notification 2
When the communication processing unit 8a receives 0, the first time an alarm message is received after the reception of the congestion release notification 20, the communication processing unit 8a adds polling release information to the alarm message, and centrally monitors that the subsequent alarm messages are transmitted randomly. It notifies the communication processing management unit 21 of the device 2. At that time, the communication processing management unit 21 of the centralized monitoring device 2 stops transmitting the polling signal and switches to a method of sequentially processing alarm messages transmitted at random.

As described above, when a large number of alarms are generated from the monitored device group 3, the centralized monitoring device 2 can perform the concentrated fault monitoring without the alarm message collection processing being congested.

That is, in a network fault monitoring system including a centralized monitoring device 2 for processing alarm messages 5a to 5n notified from a plurality of devices 4a to 4n to be managed in the network 1, a plurality of centralized monitoring devices 2 are provided. For example, the alarm processing unit 9n of the device 4n notifies the communication processing unit 8n of congestion at the time of alarm processing congestion by performing communication processing with the devices 4a to 4n to be managed. The alarm message with the information is transmitted to the communication processing management unit 21 of the centralized monitoring device 2. The communication processing management unit 21 that has received it switches the collection of the alarm message to the collection by polling 6n.

When the congestion is released, the alarm processing unit 9n of the device 4n to be managed notifies the communication processing unit 8n of the release of the congestion, and the communication processing unit 8n transmits the alarm message to which the information of the polling release is added to the centralized monitoring device 2n. Is transmitted to the communication processing management unit 21.

After the congestion is released, the communication processing management section 21 stops transmitting the polling signal, resumes normal monitoring, and receives and processes an alarm message randomly.

As described above, when a large number of alarms are generated, the collection of the alarm message is switched to the polling from the centralized monitoring device 2, thereby preventing the alarm message collection process of the centralized monitoring device 2 from being congested. To

The above operation is performed by the device 4a in the monitored device group 3.
4n, the centralized monitoring device 2 simply switches to polling only for the device 4b, even if the specific device 4b is in a congestion state of alarm processing. , 4c and 4n are not affected.

Note that the centralized fault monitoring system of the present invention can be applied to a network transmission system, a building management system, and the like.

[0040]

As described above, the centralized fault monitoring system of the present invention switches to alarm message reception control by polling when alarm processing is congested, so that a large number of random alarm messages are transmitted from the monitored device. Therefore, there is an effect that congestion does not occur in the centralized monitoring device.

Even when a certain device is in the alarm processing congestion state, it is the monitored device itself that checks for congestion, and the centralized monitoring device only switches the monitoring method to the relevant monitored device only. Therefore, there is an effect that monitoring of other monitored devices is not affected.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a centralized fault monitoring system according to the present invention.

FIG. 2 is a sequence diagram showing the operation of FIG.

FIG. 3 is a diagram illustrating an operation at the time of alarm processing congestion in FIG. 1;

FIG. 4 is a diagram illustrating an operation at the time of alarm processing congestion release in FIG. 1;

FIG. 5 is a block diagram showing a conventional concentrated fault monitoring method.

[Explanation of symbols]

Reference Signs List 1 network 2 centralized monitoring device 3 monitored device group 4a, 4b, 4c, 4n device 5a, 5b, 5c, 5n, 5a ', 5a'', 5
a ′ ″ Alarm message 6a, 6b, 6c, 6n, 6a ′, 6a ″ Polling signal 7a, 7b, 7c, 7n, 7a ′, 7a ″, 7
a '''Alarm message 8a, 8b, 8c, 8n Communication processing unit 9a, 9b, 9c, 9n Alarm processing unit 10 Congestion notification 20 Congestion release notification 21 Communication processing management unit 31 Network 32 Centralized monitoring device 33 Monitored device group 34 Alarm processing unit 35 Communication processing unit 36 Congestion control signal 37a, 37b, 37c, 37n Alarm message 38a, 38b, 38c, 38n Device

Claims (6)

[Claims] 1. A system comprising: a plurality of devices to be monitored scattered in a network; and a centralized monitoring device for centrally managing the plurality of devices, wherein the devices to be monitored randomly notify the centralized monitoring device. If the alarm message is congested,
The centralized monitoring device switches to alarm message reception control by polling signal transmission, stops the polling signal transmission when the alarm message does not congest, resumes normal monitoring, and randomly receives the alarm message. Intensive failure monitoring method. 2. A monitored device group comprising: a network; a monitored device group having a plurality of devices as management targets scattered in the network; and a centralized monitoring device for centrally monitoring the monitored device group. Each of the plurality of devices, an alarm processing unit that outputs a congestion notification signal to determine that it is in a congestion state when transmitting a predetermined alarm message within a predetermined time, and from the centralized monitoring device during congestion A communication processing unit that performs processing for transmitting an alarm message by a polling signal and processing for storing an untransmitted alarm message, and receives the alarm message from each of the plurality of devices in the centralized monitoring device, A centralized fault monitoring method comprising a communication processing management unit for transmitting a plurality of the polling signals. 3. The centralized fault monitoring system according to claim 2, wherein each of the plurality of devices in the monitored device group includes the alarm processing unit and the communication processing unit connected thereto. method. 4. When a first alarm message is transmitted to each of the plurality of communication processing units, a predetermined number or more of the alarm processing units within a predetermined period are transmitted. When it is determined that a congestion state is caused to transmit the alarm message of the above, the congestion notification signal is transmitted to the communication processing unit before transmitting the first alarm message, and then the second alarm message is transmitted. In the communication processing unit, in order to notify the communication processing management unit of the centralized monitoring device that switching to alarm message reception by polling is performed after the second alarm message received immediately after the reception of the congestion notification signal, Transmitting a third alarm message in which polling request information is added to the alarm message to the communication processing management unit; 4. The centralized fault monitoring system according to claim 2, wherein the communication processing management unit that has received the message switches to a method of receiving an alarm message by polling. 5. The alarm processing unit of each of the plurality of devices transmits a congestion release notification to the communication processing unit when determining that the alarm message is not in a congestion state, and receives the congestion release notification. The communication processing unit, when receiving an alarm message for the first time after receiving the congestion release notification, adds the information of the polling release to the alarm message, the subsequent alarm message that the randomized transmission of the centralized monitoring device The communication processing management unit is notified, the communication processing management unit stops transmitting the polling signal, and switches to a method of sequentially processing the alarm message transmitted at random. 4. The concentrated fault monitoring method described in 4. 6. A network transmission system using the centralized fault monitoring system according to claim 1.