JP2011138251A - Monitoring control network system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such a problem that formerly, a failure similar to the past failure cannot be avoided in advance in reference to a situation of the past failure. <P>SOLUTION: A transmission device includes: an operation-system circuit part performing main transmission processing; a spare-system circuit part having the same function as the operation-system circuit part; a failure detection part detecting occurrence of failure; a spare changeover part changing over the operation-system circuit to the spare-system circuit; a communication part; and a control part transmitting a failure alarm to a monitoring server device when detecting the failure and controlling operation of each part of the transmission device. The monitoring server device includes: a database holding use component information, environmental information, and statistical information of the failure having occurred in the transmission device in the past; a communication part; a retrieval part searching another transmission device using the same component under similar environment when the communication part receives the failure alarm from the transmission device; an analysis part analyzing a retrieval result of the retrieval part; and a prediction part predicting possibility of the failure according to an analysis result of the analysis part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a supervisory control network system that manages a plurality of transmission apparatuses having the same type of component, and more particularly to a technique for predicting the occurrence of a component failure.

  A typical transmission apparatus includes a standby circuit in addition to an operation circuit that always operates, and automatically switches to a standby circuit so that communication is not interrupted when a component failure occurs. . Also, when a failure occurs, failure information is notified from the transmission device to the monitoring server, and the cause of the failure is analyzed on the monitoring server side. For example, the monitoring server creates a database of past failure occurrence dates and conditions (circuit boards, components, etc.) of transmission devices connected to the monitoring control network, and new failure information is notified from the transmission device A technique for estimating the failure location of the device by referring to the past failure causes has been considered (see, for example, Patent Document 1).

JP 2000-155700 A

  However, in the prior art, it is not considered to avoid a failure in advance only by estimating the cause and location of a newly occurring failure by referring to the past failure situation. For this reason, there is a problem that the same failure may occur in the same type of transmission apparatus but is not effectively used.

  In view of the above problems, an object of the present invention is to provide a supervisory control network system capable of avoiding a similar failure in advance by referring to a past failure situation.

  The invention according to claim 1 is a monitoring control network system in which a plurality of transmission devices and a monitoring server device that monitors operations of the plurality of transmission devices are connected to each other via a network. An operation system circuit unit that performs transmission processing, a standby system circuit unit that has the same function as the operation system circuit unit, a failure detection unit that detects the occurrence of a failure, and a standby switching unit that switches the operation system circuit to the standby system circuit A communication unit that transmits / receives control information to / from the monitoring server device, and a failure alarm is transmitted from the communication unit to the monitoring server device when the failure detection unit detects a failure, and each unit of the transmission device And the control server device controls the operation of the transmission server, and the monitoring server device is a data base for holding failure statistical information, environmental information, and used component information that has occurred in the past in the transmission device. And a communication unit that transmits and receives control information to and from the transmission device, and when the communication unit receives a failure alarm from the transmission device, refer to the database from the failure component information included in the failure alarm. A search unit that searches for other transmission devices that use the same parts in a similar environment, an analysis unit that analyzes the search result of the search unit, and predicts the possibility of failure according to the analysis result of the analysis unit It is characterized by comprising a prediction unit that performs.

  According to a second aspect of the present invention, in the supervisory control network system according to the first aspect, the monitoring server device is switched to a standby circuit for the transmission device that the prediction unit has predicted to have a failure. A standby switching instruction unit for transmitting a standby switching instruction command for instructing to transmit the standby switching instruction command to the control unit of the transmission apparatus by the standby switching unit when the communication unit receives the preliminary switching instruction command from the monitoring server device; It is characterized by switching to a standby circuit.

  According to a third aspect of the present invention, in the supervisory control network system according to the first or second aspect, the analysis unit determines whether or not the number of occurrences of similar faults in the past predetermined period is greater than or equal to a threshold, and the prediction When the analysis result of the analysis unit is greater than or equal to a threshold, the unit is likely to cause a similar failure in another transmission device that uses the same component in a similar environment extracted by the search unit. It is characterized by prediction.

  According to a fourth aspect of the present invention, in the supervisory control network system according to any one of the first to third aspects, an information update unit that sequentially updates information in the database is further provided.

  The invention according to claim 5 is the supervisory control network system according to any one of claims 1 to 4, wherein the database includes a used parts information database, an environment information database, and a parts failure statistics information database. It is characterized by being.

  The invention according to claim 6 is the monitoring control network system according to claim 5, wherein the search unit searches for the same part as the failed part with reference to the used part information database, It is characterized by comprising the same environment search unit that searches the environment information database for parts having the same environment information as the failed part.

  The invention according to claim 7 is the supervisory control network system according to claim 6, wherein the same part search unit includes the part name and part specific information (serial number, manufacturing date, lot) stored in the used part information database. Is characterized by searching for the same part.

  The invention according to claim 8 is the monitoring control network system according to claim 6, wherein the same environment search unit has a predetermined range of installation location, temperature, humidity, and operation time of the transmission device stored in the environment information database. It is characterized by searching for a transmission device within the network.

  The invention according to claim 9 is the supervisory control network system according to any one of claims 2 to 8, wherein the transmission device is in a standby switching mode when receiving a standby switching instruction command from the monitoring server device. The monitoring server apparatus stores the transmission apparatus that has transmitted the backup switching instruction command as backup switching list information, and notifies the maintenance terminal.

  According to a tenth aspect of the present invention, in the supervisory control network system according to the ninth aspect, when the circuit before the pre-switching is exchanged in the transmission apparatus, the pre-switching for switching from the circuit after the pre-switching to the circuit after the switching. The transmission device further includes a return unit, and the transmission device cancels the standby switching mode when the backup switch-back unit switches to the circuit after replacement, transmits a backup switch completion notification to the monitoring server device, and transmits the monitoring When the server apparatus receives the preliminary switchback completion notification, the server apparatus deletes the transmission apparatus from the preliminary switching list.

  The monitoring control network system according to the present invention is the same in a similar transmission apparatus having a similar environment or high occurrence frequency by using environmental information such as the installation conditions of the transmission apparatus to be monitored and information such as the failure location and the occurrence frequency of the failure. It is possible to predict that a failure will occur and automatically switch to a standby circuit. Thereby, it is possible to prevent a similar failure from occurring in advance, and to improve the reliability of communication performed in the transmission apparatus.

It is a block diagram which shows the structural example of the network management system 100 which concerns on this embodiment. It is explanatory drawing which shows the example of data of used part information DB153. It is explanatory drawing which shows the example of data of NE environment information DB154. It is explanatory drawing which shows the example of data of parts failure statistics information DB155. It is a flowchart which shows the process at the time of failure detection. It is explanatory drawing which shows the image of the process at the time of failure detection. FIG. 10 is an explanatory diagram for explaining processing of the same parts search unit 201. It is explanatory drawing for demonstrating the process of the same environment search part. It is explanatory drawing for demonstrating the process of the failure statistics analysis part. It is explanatory drawing which shows the image of the process at the time of backup switching. It is a flowchart which shows a preliminary switchback process. It is explanatory drawing which shows the image of a preliminary switchback process.

  Hereinafter, an embodiment of a “monitoring control network system” according to the present invention will be described in detail with reference to the drawings.

[Configuration Example of Monitoring Control Network System 100]
FIG. 1 is a configuration example of a monitoring control network system 100 according to the present embodiment. In FIG. 1, a monitoring control network system 100 includes a monitoring server apparatus 101, a plurality of transmission devices (NE: Network Element), a monitoring control network 105, and a maintenance terminal 106. In the example of FIG. 1, three NEs NE102, NE103, and NE104 are connected as a plurality of NEs. FIG. 1 is a diagram for explaining the supervisory control which is a feature of the present embodiment. The original NE circuit configuration for connecting to a higher level network or a lower level device via an optical transmission line is shown in FIG. It is omitted except for the IF board related to the form.

  In FIG. 1, the monitoring server device 101 monitors the operations of the subordinate NEs 102, NE 103, and NE 104, and accumulates failure alarms and information related to each NE sent from each NE. In particular, in the monitoring control network system 100 according to the present embodiment, when the monitoring server apparatus 101 predicts a similar failure occurrence when a failure occurs in any one of the NEs and determines that there is a possibility of the failure, The corresponding NE is instructed to switch to the standby system in advance. As a result, the occurrence of a failure can be prevented and the reliability of the transmission apparatus can be improved.

  Next, the configuration of the monitoring server apparatus 101 will be described. The monitoring server apparatus 101 includes a monitoring control unit 151, a communication IF 152, a used parts information DB 153, an NE environment information DB 154, and a parts failure statistics information DB 155.

  The monitoring control unit 151 is configured by a computer that operates according to a monitoring control program stored in advance, and controls the operation of the entire monitoring server apparatus 101. Then, the information of each subordinate NE is managed and the operation of each NE is monitored and controlled.

  The communication IF 152 provides a communication interface for the monitoring control unit 151 to transmit / receive control data and information to / from each subordinate NE via the monitoring control network 105.

  The used parts information DB 153 is a database that stores part information used for each NE IF board. Here, the part information is a part name, a serial number, a manufacturing date, a lot (LOT) number, or the like. The parts information may be information for each component such as a main LSI, or may be information for each circuit block that is a replacement unit at the time of maintenance. In the present embodiment, parts A, parts B, parts C, and parts D are described, but they mean parts or circuit blocks. For example, FIG. 2 shows an example of part information stored in the used part information DB 153. In FIG. 2, IF board ID: 001 of apparatus ID: 111 (corresponding to NE102 of FIG. 1) is composed of part A, part B, and part C. For example, the serial number (No) of part A is AAA. It can be seen that the manufacturing date is yyyy-mm-dd and the lot number is 1234. And the monitoring control part 151 can search easily the apparatus ID and IF board ID in which the parts of the same parts, the same manufacture date, and the same lot number are used with reference to use part information DB153. For example, the device ID and IF board ID in which the part A is used are the IF board ID: 001 of the device ID: 111, the IF board ID: 002 of the device ID: 111, and the IF board ID: 001 of the device ID: 222. It can be seen that there are five: an IF board ID: 001 with a device ID: 333, and an IF board ID: 002 with a device ID: 333. In this case, if the condition that the part number has the same lot number is used, the part A with the device ID: 333 and the IF board ID: 002 is excluded from the search result because the lot number is 5678. In this way, the monitoring controller 151 refers to the used part information DB 153 and searches for the device ID and IF board ID in which similar parts are used. The parts information of each NE may be input by the operator from the maintenance terminal 106 when each NE is installed, or may be automatically transmitted from each NE to the monitoring server apparatus 101. . In this case, the monitoring control unit 151 of the monitoring server apparatus 101 accumulates the part information sent from each NE in the used part information DB 153.

  The NE environment information DB 154 is a database that stores environment information of each NE. Here, the environmental information is physical information such as the installation location conditions, temperature, and humidity of each NE, and information such as the IF board ID of the operation system (actually operating system) and the operation time of the IF board. . Note that the above environmental information is an example, and information such as installation status and numerical information that changes sequentially may be handled as environmental information. In this embodiment, for example, as shown in FIG. 3A, the installation location condition is any one of A (for example, seaside) or B (for example, inland), and the temperature, humidity, operational IF board ID, and operation time. The case where is used as environment information will be described.

  In FIG. 3A, apparatus ID: 111 (corresponding to NE102 in FIG. 1) is installed on the seaside, the temperature at the time of the latest monitoring is 20 ° C., the humidity is 80%, and the operational IF board is the IF board ID. : 001, and the operation time is 100 days (day). Then, the monitoring control unit 151 searches for a device ID and an IF board ID installed in a similar environment by referring to the NE environment information DB 154. For example, the apparatus ID and IF board ID corresponding to the environment where the installation location condition is A, temperature: 20 ° C. and humidity: 80% are the IF board 163 (ID: 001) of the apparatus ID: 111 and the apparatus ID: 333. It turns out that it is IF board 183 (ID: 001). In this case, if the search is performed only under the condition of temperature: 20 ° C., the IF board 173 (ID: 002) with the device ID: 222 is also extracted as a search result. In this way, the monitoring control unit 151 is installed in the same environment (not only when they completely match, but also within a predetermined range set in advance) with reference to the NE environment information DB 154. The device ID and IF board ID that have been set are searched. The installation location condition in the environmental information of each NE may be input by the operator from the maintenance terminal 106 when installing each NE, and the installation location condition is stored in the NE to be installed. It may be automatically transmitted to the monitoring server apparatus 101 at the time of initial installation. Each NE has an environmental information database (DB), and each NE also accumulates information on its own device and updates it sequentially. For example, environmental information as shown in FIG. 3B is stored in the environmental information DB 165 of the NE 102 (device ID: 111). This environmental information is transmitted to the monitoring server device 101, and the NE shown in FIG. Reflected in the environment information DB 154. Similarly, the environment information DB 175 of NE 103 (device ID: 222) stores environment information as shown in FIG. 3C, and the environment information DB 185 of NE 104 (device ID: 333) stores information shown in FIG. The environmental information as shown in FIG. These pieces of environment information are also transmitted to the monitoring server apparatus 101 and reflected in the NE environment information DB 154 in FIG.

  The environmental information such as temperature, humidity, operational IF board ID, and operation time is updated as appropriate, so that it is automatically transmitted from the NE side to the monitoring server apparatus 101 periodically or when it changes. For example, when the temperature changes from 20 ° C. to 25 ° C. or when the operation system is switched from IF board ID: 001 to IF board ID: 002, new temperature information and IF board ID are transmitted to the monitoring server apparatus 101. To do. Then, the monitoring control unit 151 of the monitoring server apparatus 101 accumulates environment information transmitted from each NE in the NE environment information DB 154. When new environment information is received from the NE side, the environment information before the NE is deleted and updated to new environment information. Note that the environment information acquisition method may be configured to poll each NE from the monitoring server apparatus 101 side.

  The part failure statistical information DB 155 is a database that accumulates failure information sent from the NE side to the monitoring server device 101 when some failure occurs in the NE. Here, the failure information may include information such as the NE device ID, the failure occurrence date and time, and the failure location (part name, etc.) as basic information, and environmental information at the time of failure occurrence may be added thereto. In the example of FIG. 4, environmental information such as installation location conditions, temperature, humidity, operational IF board ID, and operation time are stored in addition to the NE device ID, failure occurrence date and time, and the basic information of the failed part name. . For example, in FIG. 4, the device ID: 111 (corresponding to NE 102 in FIG. 1) fails on December 1, 2009 (which may include time), and the failed part is part A. . Furthermore, it can be seen that the environment at the time of the failure is installation location condition: A (seaside), temperature: 20 ° C., humidity: 80%, operational IF board ID: 001 and operation time: 100 days. In the example of FIG. 4, it can be seen that there is no other history of failure occurring in an environment similar to the same part A.

  In this way, the supervisory control unit 151 can analyze which part has failed in the past under the same environmental condition with reference to the part failure statistical information DB 155. The information is transmitted from the NE side as a “failure alarm” (including the above-described failure information) to the monitoring server device 101 every time a failure occurs in the NE, and is reflected in the part failure statistical information DB 155 of FIG. The

  Next, the configuration of the monitoring control unit 151 of the monitoring server apparatus 101 will be described with reference to FIG. As shown in FIG. 1, the monitoring control unit 151 includes the same parts search unit 201, the same environment search unit 202, a failure statistics analysis unit 203, a parts failure prediction unit 204, a standby switching instruction unit 205, information The update unit 206, the maintenance terminal notification unit 207, and the communication unit 208 are configured.

  The same parts search unit 201 refers to the used parts information DB 153 and searches for the NE device ID and IF board ID in which the same parts are used.

  The same environment search unit 202 refers to the NE environment information DB 154 and searches for the NE device ID and IF board ID under the same environment condition.

  The failure statistic analysis unit 203 refers to the part failure statistics information DB 155 to extract a history of failures occurring in the same part from the previous failure histories, and the NE device ID, IF board ID, and environmental information at that time Is analyzed. For example, whether or not a failure has occurred in the same part in a similar environment (the same environment or a similar environment within a predetermined range), or how many times the same failure has occurred in the past (number of failures) To analyze.

  The part failure prediction unit 204 predicts the occurrence of a similar failure from the analysis result of the failure statistical analysis unit 203, and extracts the NE device ID and IF board ID that may cause a failure. For example, the part failure prediction unit 204 predicts that a similar failure may occur when the occurrence of a similar failure is greater than or equal to a preset threshold value. Then, the device ID and IF board ID of the NE in which the same part is operated in the same environment are extracted.

  The standby switching instruction unit 205 instructs the NE predicted by the part failure prediction unit 204 to switch the IF panel from the active system to the standby system. When the backup switching instruction unit 205 receives a backup switching completion response from the NE side, the backup switching instruction unit 205 notifies the maintenance terminal 106 of the completion of backup switching. Note that in this embodiment, the standby switching instruction unit 205 creates a preliminary switching list in order to grasp the devices that are undergoing preliminary switching, and updates each time the NE performs preliminary switching.

  Each time the information update unit 206 receives part update information, environment update information, a notification of switching from the active system to the standby system, a switchback notification, a failure alarm, or the like sent from each NE, the used parts information DB 153, NE Information in the environmental information DB 154 and the part failure statistical information DB 155 is updated or added.

  The maintenance terminal notification unit 207 sends a completion notification from the monitoring server apparatus 101 to the maintenance terminal 106 every time the NE IF panel switching or switchback is completed, and displays the notification on the screen of the maintenance terminal 106. Alternatively, when a failure occurs, the maintenance terminal 106 may be notified that a failure has occurred. Further, every time the preliminary switching list is updated, the preliminary switching list may be transmitted from the monitoring server apparatus 101 side to the maintenance terminal 106.

  The communication unit 208 performs communication processing such as protocol control when transmitting / receiving information and control data to / from each NE with respect to the physical layer provided by the communication IF 152. For example, the communication unit 208 outputs various types of information received from each NE to the information update unit 206, and applies the control data (switching command to the standby system) output from the backup switching instruction unit 205 via the communication IF 152. Send to NE.

In this way, the monitoring control unit 151 is configured to monitor and control subordinate NEs.
[Configuration of NE]
Next, a configuration example of each NE will be described. In FIG. 1, NE 102, NE 103, and NE 104 have the same basic configuration except that the parts of the IF board used are different. For example, the NE 102 (device ID: 111) includes a control unit 161, a communication IF 162, an IF board (ID: 001) 163, an IF board (ID: 002) 164, an environment information DB 165, and an installation information DB 166. Composed. The NE 103 (device ID: 222) includes a control unit 171, a communication IF 172, an IF board (ID: 001) 173, an IF board (ID: 002) 174, an environment information DB 175, and an installation information DB 176. Composed. Similarly, the NE 104 (device ID: 333) includes a control unit 181, a communication IF 182, an IF board (ID: 001) 183, an IF board (ID: 002) 184, an environment information DB 185, and an installation information DB 186. Consists of.

  Hereinafter, although each part is demonstrated, since the block of the same name performs the same operation | movement, operation | movement of each block is demonstrated collectively.

  The control units 161, 171 and 181 are configured by a computer that operates according to a control program stored in advance, and controls the overall operation of each NE. It manages its own device information, detects a failure, switches to a standby system, updates device information, and transmits / receives information and control data to / from the monitoring server device 101.

  The communication IFs 162, 172, and 182 provide communication interfaces for the control units 161, 171, and 181 to transmit and receive information and control data to and from the monitoring server apparatus 101 via the monitoring control network 105.

  The IF boards (ID: 001) 163, 173, and 183 are IF boards used as, for example, an operational system, and are connected to higher-level networks and lower-level apparatuses via, for example, optical transmission lines as transmission devices that are originally responsible for NEs. A communication circuit is configured. In addition, in order to provide redundancy, similar IF panels (ID: 002) 164, 174 and 184 are provided. When a failure occurs, the other IF panel is automatically switched to avoid communication interruption and reliability. Is increasing. In these two IF panels, the one used for actual communication is called the operational system, and the one used for actual communication is called the standby system without being used for actual communication. Therefore, if the IF board ID: 001 is the active system, IF: 002 is the standby system, and conversely if the IF board ID: 002 is the active system, IF: 001 is the standby system. Normally, the IF board of (ID: 001) is the active system, and the IF board of (ID: 002) is the standby system. Switching the operating system to the standby system is referred to as backup switching, and returning to the original system is referred to as backup switching.

  The environment information DBs 165, 175, and 185 are databases that store environment information of the device itself. The environment information is the same information as that described in the NE environment information DB 154 of the monitoring server apparatus 101. For example, it is physical information such as the installation location conditions, temperature and humidity of the own device, information such as the IF board ID of the operation system (the system that is actually in operation) and the total operation time of the IF board.

  The installation information DBs 166, 176, and 186 are databases that hold information about the device itself. For example, it stores part information used for each IF board of its own device. The part information is a part name, a serial number, a manufacturing date, a lot (LOT) number, or the like, as described in the used part information DB 153 of the monitoring server apparatus 101. For example, the IF board 163 (ID: 001) and the IF board 164 (ID: 002) of the NE 102 use part A, part B, and part C. On the other hand, the IF board 173 (ID: 001) and IF board 174 (ID: 002) of the NE 103 use parts A, parts B, and parts D. Further, only the parts A and B are used for the IF board 183 (ID: 001) and the IF board 184 (ID: 002) of the NE 104.

  Next, the configuration of the control units 161, 171 and 181 of each NE will be described. Since the control units 161, 171 and 181 have the same configuration, the configuration of the control unit 181 of the NE 104 will be described here.

  The control unit 181 includes a failure detection unit 301, a backup switching unit 302, an information update unit 303, a communication unit 304, and a backup switching unit 305.

  The failure detection unit 301 constantly monitors the operation of the operational IF board 183 (ID: 001) of the NE 104, and determines that a failure has occurred when an abnormality is detected. For example, the input / output level of an optical signal and a communication error are constantly monitored, and it is determined that a failure has occurred when a level abnormality or an error amount exceeds a preset threshold value. Then, by monitoring signals provided in each part of the circuit, a failure part (circuit block, part, etc.) is specified. When the failure detection unit 301 detects the occurrence of a failure, the failure detection unit 301 notifies the monitoring server device 101 via the communication IF 182 and the monitoring control network 105 of a failure alarm through the communication unit 304. When a failure occurs, the failure detection unit 301 outputs a failure occurrence of the active IF panel to the standby switching unit 302, and the standby switching unit 302 automatically switches the IF panel to the standby system so that communication does not stop. Control. Here, in the monitoring control network system 100 according to the present embodiment, it is assumed that the failure alarm notified from each NE side to the monitoring server device 101 includes information on the failed part, environment information, and the like.

  When the failure detection unit 301 detects a failure, the standby switching unit 302 switches the IF board 183 (ID: 001), which is the active system, to the standby IF board 184 (ID: 002), and the IF board 184 (ID : 002) is the active system. In particular, the monitoring control network system 100 according to the present embodiment performs an operation of switching to the standby IF board even when control data (backup switching instruction command) from the monitoring server apparatus 101 is received.

  The information update unit 303 updates the environment information stored in the environment information DB 185 when the environment information of the NE 104 has changed. Also, when the maintenance person replaces the IF panel, the parts information (manufacturing date, serial number, lot number, operation time, etc.) of the new IF panel is updated. Alternatively, environmental information such as temperature and humidity may be measured periodically to update the storage content of the environmental information DB 185. The information updating unit 303 transmits new information to the monitoring server apparatus 101 via the communication IF 182 and the monitoring control network 105 every time the above information is updated.

  The communication unit 304 performs communication processing such as protocol control when transmitting and receiving information and control data to and from the monitoring server apparatus 101 with respect to the physical layer provided by the communication IF 182. For example, the communication unit 304 outputs control data (such as a standby switching instruction command) received from the monitoring server apparatus 101 to the standby switching unit 302. The standby switching unit 302, for example, selects the IF board (ID: 001) that was the active system. Switch to the standby IF board (ID: 002) and operate the IF board (ID: 002) as the active system.

  The spare switch-back unit 305 performs processing to restore the IF board switched to the spare system.

In this way, the NE 104 switches to the standby system when a failure is detected, when a failure occurs, or according to a command from the monitoring server apparatus 101. Although the configuration of the control unit 181 of the NE 104 has been described, the failure detection unit 301, the standby switching unit 302, and the information update unit 303 are also configured for the control unit 161 of the NE 102 and the 171 of the NE 103 similarly to the control unit 181 of the NE 104. And a communication unit 304 and a preliminary switchback unit 305. In the following description, these configurations and symbols are used in common for all of the control units 161, 171 and 181. For example, the failure detection unit 301 of the control unit 161 and the failure detection unit 301 of the control unit 171 are described. To do.
[Processing of entire monitoring control network system 100 when a failure occurs]
Next, a processing flow of the entire monitoring control network system 100 when a failure occurs will be described. FIG. 5 is a flowchart showing a processing flow when a failure occurs in part B of the IF board 163 (ID: 001) of the NE 102 (device ID: 111).

  In FIG. 5, first, the processing on the NE 102 side is processing when the failure detection unit 301 of the control unit 161 detects the occurrence of a failure. The failure detection unit 301 of the control unit 161 notifies the monitoring server device 101 of “failure alarm (failure The alarm includes failure part information, environmental information, date and time) ”(step S101). Then, it automatically switches to the standby system and shifts to the standby switching mode (step S102), and the contents of the environment information DB 165 and the installation information DB 166 are updated (step S103). For example, the information on the active and standby IF board IDs is updated.

  On the other hand, in FIG. 5, the processing on the monitoring server apparatus 101 side is processing when the communication unit 208 receives the “failure alarm” from the NE 102 side, and the received “failure alarm” is sent from the communication unit 208 to the information update unit 206. The information update unit 206 outputs the failure history to the part failure statistical information DB 155 (step S201). Note that the monitoring control unit 151 may notify the maintenance terminal 106 of the occurrence of a failure. The state of the processing at this time is shown in FIG. 6 is an overall configuration diagram of the same supervisory control network system 100 as in FIG.

  In FIG. 5, the same parts search unit 201 searches for the NE device ID and IF board ID in which the same parts as the failed parts included in the notified failure information are used (step S <b> 202). For example, referring to the used parts information DB 153 in FIG. 7, when searching for a device ID and an IF board ID in which the same part B is used as the part B where the failure occurred (IF board ID: 001 of the apparatus ID: 111) , Device ID: 111 IF board ID: 002, device ID: 222 IF board ID: 001, device ID: 333 IF board ID: 001, and device ID: 333 IF board ID: 002 Extracted. In this case, if the condition that the part number is the same and the part number is the same as the IF board ID is used, only the part B having the apparatus ID: 333 and the IF board ID: 001 is applicable. In this way, the same parts search unit 201 can search the device ID and IF board ID in which similar parts are used with reference to the used parts information DB 153.

  Next, in FIG. 5, the same environment search unit 202 searches for the NE device ID and IF board ID of the environment information that is the same as or similar to the environment information included in the notified failure information (step S203). For example, referring to the NE environment information DB 154 in FIG. 8, the same environmental conditions as the NE 102 (device ID: 111) where the failure occurred (installation location condition: A, temperature: 20 ° C., humidity: 80%, operational IF When the device ID of the environment with the panel ID: 001 and the operation time: 100 days is searched, the IF panel 183 (ID: 001) of the NE 104 (device ID: 333) is extracted. In this way, the same environment search unit 202 of the monitoring control unit 151 can search for the device ID and IF board ID operated in the same environment with reference to the NE environment information DB 154. Here, the environmental information does not necessarily need to be completely matched. For example, if the temperature and humidity are within ± 5%, it may be determined that they are similar.

  Next, in FIG. 5, the failure statistics analysis unit 203 refers to the part failure statistics information DB 155 and searches for failure information that is the same as or similar to the notified failure information in the past failure history. At the same time, the number of failures is also checked (step S204). For example, referring to the part failure statistical information DB 155 in FIG. 9, when a failure that has occurred in the past under the same environmental conditions is detected for the part B where the failure occurred, December 2, 2009, and December 3, 2009 From December 12, 2009, it can be seen that the same part B has failed under the same environmental conditions. In this manner, the failure statistical analysis unit 203 of the monitoring control unit 151 searches whether there is a failure that has occurred in the past under the same environmental conditions (or similar environmental conditions) for the part in which the failure occurred, and the failure You can know the number of times.

  Next, in FIG. 5, the part failure prediction unit 204 determines whether there is a possibility that the same failure may occur in the NE IF panel in which the same part as the failed part is used under the same environmental conditions. Is determined (step S205). For example, the part failure prediction unit 204 determines whether or not the number of failures analyzed in step S204 is equal to or greater than a preset threshold value. If it is less than the preset threshold value, the process is terminated as it is with no possibility of failure. On the other hand, if the number of failures is equal to or greater than the threshold, the parts failure prediction unit 204, if there are NE device IDs and IF panel IDs extracted in both step S202 and step S203, these NE device IDs and IFs. It is determined that a similar failure is likely to occur in the IF board corresponding to the board ID, and the process proceeds to step S206. For example, when the failure frequency threshold is 3 times, in the example of FIG. 9, the failure occurrence frequency is 3 under the same conditions as the part B where the failure has occurred. If there is a device ID and an IF board ID corresponding to both, it is determined that there is a high possibility that a similar failure will occur in the IF board. In the example of FIGS. 7 and 8 described above, the part failure prediction unit 204 corresponds to the NE 104 (device ID: 333), and this IF board 183 (IF board ID: 001) may cause the same failure. It is judged that is high.

  Then, the standby switching instruction unit 205 transmits a standby switching instruction command to the NE 104 (device ID: 333) predicted by the part failure prediction unit 204, and receives a preliminary switching completion response from the NE 104 (step S206). In response to this, the information updating unit 206 updates the information on the IF board of the NE on each database (information such as switching between the active system and the standby system) or adds to this when creating a list during standby switching. (Step S207). Then, the maintenance terminal 106 is notified that the NE 104 (device ID: 333) has been switched to the standby system to notify the maintenance person (step S208).

  At this time, on the NE 102 side, as shown in FIG. 5, processing when a backup switching instruction is received from the monitoring server apparatus 101 side is executed. When the backup switching unit 302 of the control unit 181 receives a backup switching instruction from the monitoring server apparatus 101 side, the standby IF board 183 (IF board ID: 001) is switched to the standby IF board 184 (IF board ID: 002). The mode is switched to the switching / preliminary switching mode (step S301). The state of the processing at this time is shown in FIG. FIG. 10 is an overall configuration diagram of the same monitoring control network system 100 as in FIGS. 1 and 6. Then, the standby switching unit 302 of the control unit 181 transmits a response indicating that the preliminary switching has been completed to the monitoring server device 101 side (step S302). At the same time, the information updating unit 303 of the control unit 181 updates the contents of the environment information DB 165 and the installation information DB 166 associated with the preliminary switching (Step S303). For example, the information on the active and standby IF board IDs is updated.

  In this way, the monitoring server apparatus 101 searches for an NE that is likely to cause a similar failure when the failure occurs, and instructs the NE to switch to the standby system, thus preventing the failure from occurring. Communication reliability can be improved.

  In response to the notification to the maintenance person in step S208, the maintenance person replaces the IF board 183 (ID: 001) before the standby switching of the NE 104, which has been switched to the standby system by failure prediction, with a new base. Do. Then, after the IF board 183 (ID: 001) having a high possibility of occurrence of a failure is replaced with a new IF board 183 ′ (ID: 001), the IF board 184 (ID: 002) that has undergone preliminary switching first. To the new IF panel 183 ′ (ID: 001) is executed (preliminary switch-back process).

  Next, the preliminary switchback process will be described with reference to FIG. On the NE 104 side, as shown in FIG. 11, processing is performed when the maintenance person performs an operation of replacing with a new base. When the spare switch-back unit 305 of the control unit 181 of the NE 104 detects that a new IF panel has been replaced, it cancels the standby switching mode and switches the replaced IF panel (ID: 001) to the active system again. A switchback process is performed (step S111). Then, the information updating unit 303 updates the information of the newly installed IF board 183 ′, the ID information of the operational IF board, and the like in the installation information DB 186 and the environment information DB 185 of the NE 104 (step S112). Then, a notification of completion of preliminary switchback, update information, and the like are transmitted to the monitoring server device 101 side (step S113). Receiving this, the monitoring server apparatus 101 executes the process when the notification of the completion of the preliminary switchback is received. For example, information on the used parts information DB 153 and NE environment information DB 154 related to the NE 104 is updated to information on the newly attached IF board 183 ′, or information on the NE 104 is deleted from the preliminary switching list (step S211). Then, the monitoring server device 101 notifies the maintenance terminal 106 of a preliminary switchback completion notification (step S212). Thereby, the completion of the preliminary switching back of the NE 104 is displayed on the maintenance terminal 106, and the maintenance person can confirm that the maintenance of the NE 104 is completed. The state of the processing at this time is shown in FIG. FIG. 12 is an overall configuration diagram of the monitoring control network system 100 as in FIGS. 1, 6 and 10.

  In this way, the monitoring control network system 100 according to the present embodiment predicts whether or not a similar failure may occur in another NE when a NE failure occurs, and the possibility of the occurrence of the failure is high. Since the NE is instructed to switch to the standby system in advance, the occurrence of a failure can be prevented and maintenance can be performed appropriately. Thereby, the reliability of a transmission apparatus can be improved.

  In addition, the supervisory control network system 100 according to the present embodiment can manage information of individual parts in each NE, and it is not necessary to manually make a failure determination, and maintenance can be easily performed. Further, each database of the monitoring server device 101 is sequentially updated at the time of a failure or periodically, so it is possible to check the environmental information of each NE.

  In the monitoring control network system 100 according to the above-described embodiment, one monitoring server apparatus 101 monitors and controls three NEs 102, NE103, and NE104, and notifies one maintenance terminal 106. One monitoring server device may operate in cooperation. For example, it may be divided into a server that manages only the parts information of each NE, a server that manages only the environment information of each NE, a server that stores a history of failure occurrence, and a server that performs failure prediction. Or you may provide the regional monitoring server which monitors and controls NE for every area, and the supervision monitoring server which supervises the regional monitoring server of a some area. Further, the maintenance terminal 106 is not necessarily one, and a plurality of maintenance terminals may be arranged. Furthermore, the number of subordinate NEs monitored and controlled by the monitoring server apparatus 101 is not necessarily three, and different types of transmission apparatuses may be monitored and controlled. In this embodiment, the IF board is monitored. However, the present invention is not limited to the IF board, and other circuit boards such as a power board and a FAN board may be monitored. In any case, it can be predicted that a similar failure is likely to occur in a circuit board that is used in an environment where the same components are similar when the failure occurs. Even in the case of a power supply panel or FAN panel that does not have a redundant system, such as an IF panel, instead of sending an instruction to switch to the standby system to the NE, a failure occurrence prediction is notified to the maintenance terminal 106. Since the maintenance person can replace the power supply panel and the FAN panel in advance, an effect of preventing a failure of the transmission apparatus can be obtained.

  The monitoring control network system according to the present invention has been described with reference to the embodiments. However, the monitoring control network system can be implemented in various other forms without departing from the spirit or main features thereof. For this reason, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The present invention is defined by the claims, and the present invention is not limited to the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

100 ... monitoring control network system 101 ... monitoring server devices 102, 103, 104 ... NE
105 ... Monitoring control network 106 ... Maintenance terminal 151 ... Monitoring control unit 152 ... Communication IF
153 ... Used parts information DB
154 ... NE environment information DB
155 ... Parts failure statistical information DB
201 ... Same parts search unit 202 ... Same environment search unit 203 ... Failure statistics analysis unit 204 ... Parts failure prediction unit 205 ... Preliminary switching instruction unit 206 ... Information update unit 207 ... Maintenance terminal notification unit 208... Communication unit 161, 171, 181... Control unit 162, 172, 182.
163, 173, 183 ... IF board (ID: 001)
164, 174, 184 ... IF board (ID: 002)
165, 175, 185 ... Environmental information DB
166, 176, 186 ... Installation information DB
301 ... Failure detection unit 302 ... Preliminary switching unit 303 ... Information update unit 304 ... Communication unit 305 ... Preliminary switch-back unit

Claims (10)

In a monitoring control network system in which a plurality of transmission devices and a monitoring server device that monitors the operations of the plurality of transmission devices are connected to each other via a network,
The transmission apparatus is
An operational circuit that performs the main transmission process;
A standby circuit unit having the same function as the operational circuit unit;
A fault detector for detecting the occurrence of a fault;
A standby switching unit for switching the operational system circuit to the standby system circuit;
A communication unit that transmits and receives control information to and from the monitoring server device;
The failure detection unit comprises a control unit that transmits a failure alarm from the communication unit to the monitoring server device when a failure is detected, and controls the operation of each unit of the transmission device.
The monitoring server device
A database that holds statistical information on failure, environmental information, and used component information that has occurred in the past in the transmission device;
A communication unit that transmits and receives control information to and from the transmission device;
When the communication unit receives a failure alarm from the transmission device, a search for searching for another transmission device in which the same component is used in a similar environment with reference to the database from the failure component information included in the failure alarm And
An analysis unit for analyzing a search result of the search unit;
A monitoring control network system comprising: a prediction unit that predicts the possibility of failure according to the analysis result of the analysis unit. In the supervisory control network system according to claim 1,
The monitoring server device further includes a standby switching instruction unit that transmits a standby switching instruction command for instructing the transmission device that the prediction unit predicts that there is a possibility of failure to switch to a standby circuit,
The monitoring control network system, wherein the control unit of the transmission device is switched to a standby circuit by the backup switching unit when the communication unit receives the backup switching instruction command from the monitoring server device. In the supervisory control network system according to claim 1 or 2,
The analysis unit determines whether or not the number of occurrences of similar faults in the past predetermined period is greater than or equal to a threshold value,
When the analysis result of the analysis unit is greater than or equal to a threshold value, the prediction unit may cause a similar failure in another transmission device that uses the same component in a similar environment extracted by the search unit. A supervisory control network system characterized by high prediction. In the supervisory control network system according to any one of claims 1 to 3,
A monitoring control network system, further comprising an information updating unit that sequentially updates information in the database. In the supervisory control network system according to any one of claims 1 to 4,
The monitoring control network system, wherein the database is composed of a used parts information database, an environment information database, and a parts failure statistics information database. In the supervisory control network system according to claim 5,
The search unit refers to the same part search unit that searches for the same part as the failed part with reference to the used part information database, and searches for the part with the same environmental information as the failed part with reference to the environment information database. A supervisory control network system comprising an environment search unit. In the supervisory control network system according to claim 6,
The supervisory control network system, wherein the same part search unit searches for a part having the same part name and part specific information (serial number, manufacturing date, lot) stored in the used part information database. In the supervisory control network system according to claim 6,
The same-environment search unit searches for a transmission device within a predetermined range in which the installation location, temperature, humidity, and operation time of the transmission device stored in an environment information database are searched. In the supervisory control network system according to any one of claims 2 to 8,
When the transmission device receives a backup switching instruction command from the monitoring server device, the transmission device shifts to a standby switching mode,
The monitoring server network system characterized in that the monitoring server device holds the transmission device that has transmitted the backup switching instruction command as backup switching list information and notifies a maintenance terminal. In the supervisory control network system according to claim 9,
In the transmission device, when the circuit before the preliminary switching is replaced, further provided a preliminary switching unit for switching from the circuit after the preliminary switching to the circuit after the replacement,
The transmission device cancels the standby switching mode when the standby switching unit switches to the circuit after replacement, and transmits a preliminary switching completion notification to the monitoring server device,
The monitoring control network system, wherein the monitoring server device deletes the transmission device from the backup switching list when receiving the backup switchback completion notification.

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