JP5334915B2 - Alarm collection and monitoring system - Google Patents

Description

  The present invention relates to an alarm collection monitoring system that collects and monitors alarms based on the occurrence of various faults in a single device or a plurality of devices.

  In various data transmission systems, etc., the operation status of each part is monitored and normal operation is continued. For this purpose, the status information of each part is collected to determine whether it is normal or abnormal. When the monitoring system is applied and an abnormality has occurred, a repair procedure by a maintenance person or the like is taken. For example, it includes transmission apparatuses 100 and 101 and a monitoring apparatus 130 in the SDH (Synchronous Digital Hierarchy) system shown in FIG. 5, and one transmission apparatus 100 includes a plurality of interface units 111 (8M) having the same or different transmission rates. -IF), 112 (6M-IF), 113 (1.5M-IF), 114 (64K-IF), multiplexer / demultiplexer 115 (MUX / DMUX), and interface 116 (50M-IF) And a monitoring processing unit 110 (SV) for notifying the monitoring apparatus 130 of failure information determined by collecting failure information of each unit. Similarly, the other transmission apparatus 101 includes a plurality of interface units 121 (8M-IF), 122 (6M-IF), 123 (1.5M-IF), and 124 (64K-IF) having the same or different transmission rates. And a configuration that includes a multiplexing / demultiplexing unit 125 (MUX / DMUX) and an interface unit 126 (50M-IF), and that monitors fault information determined by collecting fault information of each unit and notifies the monitoring device 130 A processing unit 120 (SV) is provided. The monitoring processing units 110 and 120 collect status information of each unit, failure occurrence information, and the like, and notify the monitoring device 130 of the types of failure occurrence, recovery, and instantaneous occurrence. Note that 8M, 6M, etc. as an example of the transmission speed of each unit indicate 8 Mbps, 6 Mbps, and bps is omitted unless particularly necessary.

  FIG. 6 shows an example of transmission apparatuses 200 and 201 in a WDM (Wavelength Division Multiplexing) system, and a plurality of interface units 211, 221 (1 GbE), 212, 222 (10 GbE) having the same or different transmission rates, respectively. ), 213, 223 (600M-SONET), 214, 224 (2.4G-SONET), wavelength demultiplexing units 215, 225 (WDM), and monitoring processing units 210, 220 (SV). Then, the monitoring processing units 210 and 220 collect failure information and the like of each part in the device and notify the external monitoring device 230 of the occurrence of the failure and the like.

  FIG. 7 also shows a station side device 300 (OLT; Optical Line Terminal) and a home terminal device 304 (ONU; Optical Network Unit) in an optical fiber 303 through an optical coupler 303 in a PON (Passive Optical Network) system. The station side device 300 has a system configuration connected via a transmission line, and includes a monitoring processing unit 301 (SV) and an interface unit 302 (PON-IF). The monitoring processing unit 301 monitors the internal state, Necessary information is determined and notified to the external monitoring device 310.

  The monitoring processing units 110, 120, 210, 220, and 301 in FIGS. 5 to 7 described above are based on information collected from each unit in the device at predetermined time intervals, for example. 230 and 310 are notified, and, for example, the evaluation results of three types of alarms are generated: instantaneous alarm generation, generation of an alarm that continues for a predetermined time or more, and alarm recovery. For example, as shown in FIG. 8 (A), the presence or absence of an alarm is evaluated every predetermined time unit (Tn) (T1 to T2, T2 to T3, T3 to T4,...), And there is an alarm. The alarm generation time (Ta) in the time unit (Tn), that is, the alarm is generated within the period of T2 to T3 in which the evaluation is performed, and the evaluation is made based on whether or not the duration Ta is Tn> Ta. When Tn> Ta, the evaluation result is notified to the monitoring device as “instantaneous”. If Tn <Ta, the alarm is notified to the monitoring device as “occurrence”. If no alarm is given after the evaluation of “occurrence” of the alarm, the monitoring device is notified as “recovery” of the alarm. Also, if the evaluation results for each time unit (Tn) including the case of no alarm are continuously the same, no notification is given.

  Further, as shown in FIG. 8B, when the alarm is generated over the period of T2 to T3 and T3 to T4 of the time unit (Tn), the evaluation at the time T4 is “occurrence”, the time T5 The rating in is rated “Recovery”. Further, as shown in FIG. 8C, when there is an alarm at time T2 to T3 and time T3 to T4, an alarm is generated at a continuous time unit (Tn) at time T4. Is evaluated as “occurrence”, and at time T4 to T5, there is no alarm, so that it is evaluated as “recovery” and notified to the monitoring device.

  Also, in the monitoring system for transmission devices, the information collection device collects failure occurrence messages, failure recovery messages, instantaneous alarm messages, etc. of multiple transmission devices, and whether a failure has occurred, has been recovered, or has occurred instantaneously When the failure bit is notified to the monitoring center by turning on / off the failure bit, means for notifying the monitoring center of the instantaneous failure occurrence by the coordinate information indicating the position of the failure occurrence location has been proposed ( For example, see Patent Document 1). Also, in the system that transmits the alarm signal in the overhead of the multiplexed signal, give priority to the most important of the various types of alarm signals, and information on whether the alarm is generated or recovered per unit time Also, there is also known an alarm collecting means that, after transferring alarm occurrence information, notifies the alarm recovery at the time of recovery without notifying the alarm occurrence every unit time, and only the necessary information can be transferred (For example, refer to Patent Document 2).

  In a system for monitoring a plurality of devices, the monitoring device arbitrates and sequentially processes simultaneous alarm generation notifications from a plurality of monitored devices, and the alarm generation notification repeated every unit time is a continuous alarm. There is also known a means that enables alarms to be collected and processed sequentially for a large number of devices by processing (see, for example, Patent Document 3). If there are many monitored devices and alarms occur simultaneously in each location, the monitoring device may not be able to receive and process all alarm notifications in a short period of time. is there. Therefore, when the number of alarm occurrence notifications exceeds the threshold for simultaneous reception processing, it is determined that an alarm has occurred frequently, and an alarm processing means is proposed that makes an alarm acquisition request autonomously and avoids collection omissions. (For example, see Patent Document 4).

JP-A-8-256383 JP-A-11-284492 JP 2004-70462 A JP 2006-246001 A

  In the alarm evaluation shown in FIG. 8 of the above-described conventional example, even if the same Ta (<Tn) where the alarm generation duration is equal to or less than the time unit Tn is used, in the case shown in FIG. Since it is within the time unit (Tn) of ~ T3, it is rated as an instant, and in the case shown in FIG. 8B, the time unit (Tn) of T2 to T3 and the time unit (Tn) of T3 to T4 Since there is a problem, the evaluation result is different due to the difference in the timing of the evaluation even if the alarm generation duration is the same. Further, as shown in FIG. 8C, even when the alarm generation time (Ta) that is rated as instantaneous is shorter than the rating time unit (Tn), it is within the continuous rating time unit (Tn). In this case, there is a problem that an alarm is generated and the evaluation result of the alarm instant and the alarm is different depending on the evaluation timing even in the same alarm occurrence state.

  An object of the present invention is to solve the above-mentioned problems, and perform control processing including whether or not to give an alarm evaluation so as not to be affected by the alarm evaluation timing.

  The alarm collection and monitoring system of the present invention is an alarm collection and monitoring system including a monitoring processing unit that collects alarm information of each part and evaluates whether an alarm is generated, an alarm is recovered, or an instantaneous alarm is generated every predetermined period, The periodic information collection unit that collects the alarm information, a database, and the alarm information collected by the regular period alarm collection unit are recorded in the database, and the alarm information and the alarm information recorded in the database A detailed information collection processing unit to be transferred to the rating processing unit; and a notification processing unit for recording the rating result by the rating processing unit in the database and transferring the result to an external monitoring device. Based on the alarm information collected this time and the alarm information collected last time in the period, when the alarms are continuously generated within the predetermined period, the alarm is generated and shorter than the predetermined period. Alarm generating the second warning generation period, when there is no alarm continuously the predetermined period comprises means for transferring to the notification processing unit determines that the alarm recovery.

  In addition, the notification processing unit compares the rating result of the rating processing unit with the previous rating result recorded in the database. There is provided a means for recording an alarm recovery notification at the time, an alarm notification at the time of an alarm occurrence or a change from the alarm recovery to an instantaneous alarm generation, and recording in the database.

  Collecting information on the occurrence of alarms at each part, if an alarm is generated for a short period of time within a predetermined period, an instantaneous alarm is generated. If a failure occurs for a predetermined period or longer, an alarm is generated. When no alarm is generated within the period, it is assumed that the recovery is performed, and it is possible to monitor the operation state in the apparatus without being affected by the timing of the rating.

It is explanatory drawing of Example 1 of this invention. It is a flowchart of Example 1 of this invention. It is a flowchart of Example 1 of this invention. It is rating processing explanatory drawing of Example 1 of this invention. It is explanatory drawing of the wavelength division multiplexing transmission system of a prior art example. It is explanatory drawing of the SDH system of a prior art example. It is explanatory drawing of the PON system of a prior art example. It is explanatory drawing of the alarm rating process of a prior art example.

  Referring to FIG. 1, the alarm collection and monitoring system of the present invention collects alarm information of each part, and an alarm having a monitoring processing unit 2 for evaluating whether an alarm is generated, alarm recovery or instantaneous alarm is generated every predetermined period. This is a collection and monitoring system, which records the alarm information collected by the fixed-cycle alarm collection unit 5, the database, and the fixed-cycle alarm collection unit 5 that collects the alarm information in the database, and the alarm information and the alarm recorded in the database A detailed information collection processing unit 6 that transfers information to the rating processing unit 7, and a notification processing unit 8 that records the rating results by the rating processing unit 7 in a database and transfers them to an external monitoring device 3, Based on the currently collected alarm information and the previously collected alarm information within a predetermined period, the unit 7 generates an alarm when a continuous alarm occurs within a predetermined period, and is shorter than the predetermined period. Alarm of instantaneous alarm, when there is no alarm continuously the predetermined period is determined to alarm recovery, and a means for transferring to the notification processing unit 8.

  FIG. 1 is an explanatory diagram of Embodiment 1 of the present invention, in which 1 is an interface unit, 2 is a monitoring processing unit, 3 is a monitoring device (OpS), 4 is a device register, 5 is a periodic alarm collecting unit, and 6 is A detailed information collection processing unit, 7 is a rating processing unit, 8 is a notification processing unit, 9 is a notification interface conversion processing unit, and 10-1 and 10-2 are databases. Also, (1) to (10) show an example of the processing procedure. The interface unit 1 corresponds to, for example, the interface units 111 to 114 and 121 to 124 in FIG. 5, and has a single or a plurality of device registers 4, and stores information such as failure occurrence and failure recovery from each unit. Set. The monitoring processing unit 2 corresponds to the monitoring processing units 110 and 120 in FIG. The monitoring processing unit 2 includes a periodic alarm collecting unit 5, a detailed information collecting processing unit 6, a rating processing unit 7, a notification processing unit 8, a notification interface conversion processing unit 9, and databases 10-1 and 10-. 2 is provided. Although the databases 10-1 and 10-2 are illustrated as separated configurations, the storage regions can be divided as the same database configuration.

  Failure information indicating failure occurrence, failure recovery, and the like associated with the inside of the device is written in the single or plural device registers 4 of the interface unit 1 (1). The periodic alarm collecting unit 5 of the monitoring processing unit 2 collects failure information from the device register 4 at a predetermined time interval set in advance (2). “1” indicates that the failure information is alarmed and “0” indicates that there is no alarm. Is transferred to the detailed information collection processing unit 6 (3). The detailed information collection unit 6 writes the failure information in the database 10-1 (4), reads out the failure information within a predetermined period from the database 10-1, transfers the failure information to the rating processing unit 7, and the failure by the rating processing unit 7 Evaluate information (5). In this case, the evaluation process includes failure information indicated by consecutive “1”, failure occurrence indicated by a short time “1”, and continuous “0” in the failure information within a predetermined period of a predetermined period. Depending on which of the no-failures indicated by (1), the evaluation result of any of the alarm generation, instantaneous alarm generation and recovery due to the fault is transferred to the notification processing unit 8 (6). The notification processing unit 8 transfers and writes the rating result by the rating processing unit 7 to the database 10-2 (7), and via the notification interface unit 9 based on the previous rating result and the current rating result. It is determined whether or not the data should be transferred to the monitoring device 3. If it is determined that the data should be transferred, the data is transferred to the monitoring device 3 via the notification interface 9 (8) (9). The monitoring device 3 notifies the maintenance person by displaying the notified content on, for example, a display. The periodic alarm collection unit 5 repeats failure information collection at a predetermined time interval (10).

  2 and 3 show a flowchart of the first embodiment of the present invention, in which the detailed information collection unit 6 in FIG. 1 performs the detailed information collection block 6A, the evaluation processing unit 7 performs the evaluation block 7A, and the notification processing. The processing of the unit 8 is shown as a notification block 8A, and the databases 10-1 and 10-2 are shown as a database management block 10A. In this case, the time unit (Tn), the alarm generation time (Ta) (the alarm generation duration), and alarm information (Id) coded as “1” for alarm occurrence and “0” for no alarm are determined. In the detailed information collection block 6A, the number of times (Td) collected at the detailed rating interval is 10 times (in this case, the number of times (Td) can be set to a number other than 10 times, In this embodiment, it is determined whether or not (a1), and if it has not reached 10 times, the alarm information (Id) is continuously collected at a predetermined time interval (a2), The collected alarm information is encoded into 0/1 (a3), the encoded detailed information is recorded in the database 10-1 of the database management block 10A (a4), and the number of times of collection (Td) is incremented (a5) , Step (a ) To migrate.

  In step (a1), when the number of times of collection (Td) = 10, the number of times of collection (Td) is cleared (a6), and the number of times of collection (TD) coded from the database 10-1 = 10. The detailed information for 10 times is read (a7), and the process proceeds to the next evaluation block 7A. In this rating block 7A, rating is performed based on the alarm information coded for the set number of times of collection (b1). If the alarm information of the number of times of collection (Td) = 10 is all “1”, it is rated as occurring (b2), if it is all “0”, it is rated as recovering (b3), and if none of them, it is instantaneous Assess (b4).

  In the notification block 8A, the evaluation result in the evaluation block 7A is compared with the previous evaluation result recorded in the database 10-2 (c1). If there is no change, is it instantaneous and no change? It is determined whether or not (c2), and if there is no change, it is a case where it is rated as an instant again, so the instantaneous is notified (c3), and the other is not notified (c4). Also, compared with the evaluation result recorded last time (c1), if there is a change, it is determined what kind of change it is (c5), and if it is a change from recovery to occurrence, the occurrence is notified (c6). In the case of a change from occurrence to recovery, the recovery is notified (c7), and in the case of a change from occurrence or recovery to instantaneous, the instantaneous is notified (c8). Then, the evaluation result is recorded in the database 10-2 (c9). Thereby, it is possible to obtain an evaluation result according to a predetermined condition without being influenced by the evaluation timing.

  FIG. 4 is an explanatory diagram of the rating process of the first embodiment of the present invention, showing an example of an alarm, detailed information, rating, and rating result. The presence / absence of an alarm is coded by 0/1, Detailed information (Id) indicates the presence / absence of an alarm for each unit time, the rating is executed for each time unit (Tn), and the detailed information is obtained 10 times within the time unit (Tn). In FIG. 4A, there is an alarm occurrence time (Ta) between times T2 and T3, and the duration is shorter than the time unit (Tn). Therefore, the evaluation at time T3 is performed. The result is instantaneous. In FIG. 4B, an alarm is generated at times T2 to T3 and T3 to T4, and has a duration shorter than the time unit (Tn) and straddles the preceding and following time units (Tn). In this case, the evaluation result at the time T3 is instantaneous, and similarly, the evaluation result at the next time T4 is instantaneous. In FIG. 4C, at time T2 to T3 and T3 to T4, the alarm generation time (Ta) is a short time alarm generation of a time unit (Tn) or less, and continues. Since the alarms are not generated, they are all rated instantaneously. Although not shown, when the alarm generation time (Ta) continues for a time unit (Tn) or more, it is evaluated that the alarm has occurred.

DESCRIPTION OF SYMBOLS 1 Interface part 2 Monitoring process part 3 Monitoring apparatus 4 Device register 5 Periodic alarm collection part 6 Detailed information collection process part 7 Rating process part 8 Notification process part 9 Notification interface conversion process part 10-1, 10-2 Database

Claims (2)

In an alarm collection and monitoring system with a monitoring processing unit that collects alarm information of each part and evaluates whether alarm generation, alarm recovery, or instantaneous alarm generation every predetermined cycle,
The periodic information collection unit that collects the alarm information, a database, and the alarm information collected by the regular period alarm collection unit are recorded in the database, and the alarm information and the alarm information recorded in the database A configuration including a detailed information collection processing unit to be transferred to a rating processing unit, and a notification processing unit for recording the rating result by the rating processing unit in the database and transferring it to an external monitoring device;
Based on the currently collected alarm information and the previously collected alarm information within a predetermined period, the rating processing unit generates an alarm when an alarm is continuously generated within the predetermined period. Alarm collection monitoring characterized by comprising means for determining that an alarm is generated for a short period of time and that an instantaneous alarm is generated, and when no alarm is generated continuously within the predetermined period, the alarm is recovered and transferred to the notification processing unit. system.   The notification processing unit compares the rating result of the rating processing unit with the previous rating result recorded in the database. When changing from recovery to alarm occurrence, an alarm is generated, and when changing from alarm generation to recovery. 2. The alarm collection according to claim 1, further comprising means for notifying an alarm recovery, and at the time of alarm occurrence or when changing from an alarm recovery to an instantaneous alarm occurrence, providing an instantaneous alarm notification and recording in the database. Monitoring system.

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