JP3759675B2 - Monitoring terminal backup method in area-specific network monitoring system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a monitoring terminal that monitors a certain area, and particularly, a monitoring terminal that backs up a monitoring terminal when a failure occurs in the monitoring terminal that monitors each area in an area-distributed or area-centralized network monitoring system. Is related to the backup method.
[0002]
[Prior art]
Conventionally, in a system that manages information in a wide area such as a power monitoring system, the power management area is divided into multiple areas, for example, for each branch of the power company, and information in each area is provided for each area. A method of independently monitoring by a monitoring terminal is used.
[0003]
As a typical system example of monitoring for each area, an area-distributed network monitoring system for monitoring information by area divided into a plurality of servers provided for each area and information for each area by one server. There is an area-centralized network monitoring system that performs batch monitoring. The monitoring terminal monitors information in an area given via the server.
[0004]
[Problems to be solved by the invention]
However, the monitoring terminal is a stand-alone terminal provided for each area. When a failure occurs in the monitoring terminal, the monitoring operation of the area becomes impossible, and the network monitoring system inherently realizes the monitoring operation for each area. There was a problem that would interfere with the function of.
[0005]
For this reason, countermeasures for duplicating terminals have been taken in preparation for failure of a monitoring terminal. However, high-stability and expensive terminals are used to monitor public facilities such as electric power facilities, and some monitoring terminals are necessary due to the large amount of monitoring information depending on the area. Duplexing has a problem of increasing system cost in terms of terminal cost and maintenance.
[0006]
Therefore, in view of the above-mentioned problems, the object of the present invention is to monitor each area as usual in the monitoring terminal of the area as usual, and when a failure occurs in the monitoring terminal of an area, the monitoring work in the area is performed. Monitoring terminal backup method in an area-specific network monitoring system that reduces the cost of the monitoring terminal and the monitoring system without interrupting the monitoring work for each area by temporarily backing up the monitoring terminal in another area through the network Is intended to provide.
[0007]
[Means for Solving the Problems]
According to the present invention, a system monitoring device that monitors an area server, a plurality of area servers that monitor each area, an information collection device that is connected to each area server and collects monitoring information in the area, A monitoring terminal in an area-distributed network monitoring system, comprising: a monitoring terminal connected to an area server and monitoring the monitoring information in the area, wherein the area server is a failure of the monitoring terminal The system monitoring device is notified at the time of detection, and the system monitoring device instructs the backup of the monitoring terminal in which the failure is detected to another area server by the notification, The monitoring information is received from the area server where the failure is detected without using the system monitoring device, and the monitoring of the other area server is performed. A monitoring terminal backup method is provided, wherein the viewing terminal monitors the monitoring information received from the area server where the failure is detected together with the monitoring information in its own area. In addition, a system monitoring device that monitors the area server, a plurality of area servers that monitor each area, an information collection device that is connected to each area server and collects monitoring information in the area, and is connected to each area server And a monitoring terminal for monitoring the monitoring information in the area, and a monitoring terminal backup method in an area distributed network monitoring system, wherein the area server detects the failure of the monitoring terminal when the system detects a failure. A monitoring terminal change request is sent to the monitoring device, and the system monitoring device instructs another area server to back up the monitoring terminal in which the failure is detected by the monitoring terminal change request, and the other area server instructed is The monitoring information is received from the area server that detects the failure without using the system monitoring device, and the other area is received. A monitoring terminal backup method is provided, wherein the monitoring terminal of the server monitors the monitoring information received from the area server where the failure is detected together with the monitoring information in the own area.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 and 2 show an example of a system configuration for monitoring by area to which the present invention is applied.
FIG. 1 shows an example of an area-distributed network monitoring system that monitors information by area divided into a plurality of servers provided for each area, and FIG. 2 shows an area in which information by area is collectively monitored by one server. An example of a centralized network monitoring system is shown respectively.
[0015]
In the area-distributed network monitoring system of FIG. 1, the system monitoring device 10 is disposed, for example, in a central monitoring center of an electric power company and monitors and controls the state of servers provided for each area A to C. Speaking of area A, the area A server 11 instructs the information collection device 17 to collect the monitoring information of the area A where the branch of the electric power company provided for each city or ward exists, and collects the collected monitoring information. Is transmitted to the subordinate monitoring terminal 14. The monitoring terminal 14 performs monitoring in the area A based on the given monitoring information. The same applies to the other areas B and C.
[0016]
In the area centralized network monitoring system of FIG. 2, only one server 21 and one system monitoring device 20 are installed, and monitoring information for each area A to C is sent to information collecting devices 25 to 27 provided in each area. The collected monitoring information is sent to the monitoring terminals 22 to 24 corresponding to each area. Each of the monitoring terminals 22 to 24 performs monitoring in the corresponding area based on the given monitoring information.
[0017]
3 to 7 show examples of basic processing flows of the present invention in the monitoring systems of FIGS.
FIG. 3 shows an example of a basic processing flow of the system monitoring apparatus.
In FIG. 3, the system monitoring devices 10 and 20 periodically request the servers 11 to 13 and 21 under their control to transmit server information for server management, and receive current server information from each server. (S101 and 102). If necessary, the system management table is updated (S108).
[0018]
As described above, in the monitoring system for each area to which the present invention is applied, the central system monitoring devices 10 and 20 basically manage and control the servers, and the management in each area corresponds to the corresponding servers 11. ˜13 and 21 are performed independently.
[0019]
Here, for example, when a failure occurs in the monitoring terminal 14 in the area A of FIG. 1, in the present invention, the system monitoring devices 10 and 20 receive a monitoring terminal change request from the servers 11 and 21 (S103). As a result, the system monitoring devices 10 and 20 search the system management table and instruct to change the terminal that monitors the area A to the monitoring terminal 15, 16, 23, or 24 of the other area B or C (S104 and 105). ). Thereafter, when a report of the change setting of the monitoring terminal is received from the server 12 or 13, 21 of the other area having the monitoring terminal instructing the change, the monitoring information collected in the area A is changed to the monitoring terminals 15, 16 after the change. , 23 or 24, the communication path between the servers is set, and finally the system management table is updated (S106 to 108).
[0020]
In addition, you may comprise the said communication path so that it may set between servers at the time of communication not via the system monitoring apparatuses 10 and 20 (refer the dotted line of FIG. 3). When the monitoring terminal 14 in the area A is changed by manual setting or automatic server control as described later, the monitoring terminal change report is directly received without receiving the monitoring terminal change request (S103) (S106). ). In this case, the processing after step S106 is executed.
[0021]
4 and 5 show an example of a basic processing flow of the server according to the present invention. 6 and 7 show examples of basic processing flows of the monitoring terminal and the information collection device, respectively.
In FIG. 4, the server status at that time is reported in response to the periodic server information transmission requests from the system monitoring apparatuses 10 and 20, as described in the explanation of FIG. 3 (S209 and 210).
[0022]
The servers 11 to 13 and 21 periodically request the monitoring information in the area to the information collecting devices 17 to 19 and 25 to 27 provided for each area (S201). As shown in FIG. 7, the information collection devices 17 to 19 and 25 to 27 for which monitoring information is requested monitor the status of monitored terminals and the like under the monitoring information and report the result to the corresponding server (S401 to S401). 403).
[0023]
The servers 11 to 13 and 21 that have received the monitoring information report (S202) then transmit the monitoring information report to the monitoring terminals 14 to 16 and 22 to 24 corresponding to the subordinate areas (S203). As shown in FIG. 6, each of the monitoring terminals 14 to 16 and 22 to 24 processes the monitoring information received from the servers 11 to 13 and 21, performs various processes such as display display and alarm processing, and terminates the process. Reports to the servers 11 to 13 and 21 (S301 to 303). Moreover, each monitoring terminal 14-16, 22-24 performs the periodic diagnosis of various fixtures, such as the display and a memory | storage device, and when the above is detected, the monitoring terminal failure is notified to the servers 11-13, 21 (S304-306). ).
[0024]
Returning to FIG. 4, when the servers 11 to 13 and 21 receive the processing end report from the transmission of the monitoring information (S205), the monitoring information transmission processing is started again after a predetermined time. If the predetermined response time has timed out before receiving the end report (S204), the failure processing of the monitoring terminal is started assuming that some kind of monitoring terminal failure or communication path failure has occurred. The failure process is also started by an abnormality notification from the monitoring terminal shown in FIG. 6 (S306 and 206).
[0025]
In the failure processing, warning display and alarm output are performed on the maintenance / operation console provided in the server (S218), and at that time, it is determined whether the failure processing is performed by manual / automatic control (S208). In the case of manual processing setting, the operator inputs switching information from the console or the like to the backup monitoring terminal (S208). As a backup monitoring terminal, a monitoring terminal in another area is selected. This information is notified to the system monitoring devices 10 and 20 as a monitoring terminal change report (S215 and 106). The subsequent processing is as described in FIG. 3 (S107 and 108).
[0026]
If automatic processing has been set, the server that accommodates the failure monitoring terminal sends a monitoring terminal change request including failure information of the monitoring terminal to the system monitoring devices 10 and 20 (S211). The server that has received the monitoring terminal change instruction from the system monitoring apparatuses 10 and 20 through the processing S103 to S105 described with reference to FIG. 3 sends the monitoring information of other areas to the monitoring terminal specified for the fault monitoring terminal disconnection process or backup. Make the settings necessary for processing. At that time, since the information processing amount and necessary storage capacity increase in the designated monitoring terminal, its normality is checked (S212 to 214).
[0027]
If there is no problem with the change, a change report of the monitoring terminal is transmitted to the system monitoring apparatuses 10 and 20 (S215 and 106). When it is determined that the monitoring terminal after the change cannot maintain the normality, in the area distributed network monitoring system of FIG. 1, the area servers 11 to 13 update the monitoring information from other areas to the system monitoring devices 10 and 20. A terminal change request including information indicating that it cannot be added is sent (S216 and 211). As a result, a new change instruction is given from the system monitoring devices 10 and 20, and the processing from step S212 described above is repeated until the backup monitoring terminals 14 to 16 are determined.
[0028]
On the other hand, in the area centralized network monitoring system of FIG. 2, since the server 21 has a plurality of monitoring terminals 22 to 24, the server 21 designates another monitoring terminal, and the above-described steps S213 and after. These processes are repeated until the backup monitoring terminals 22 to 24 are determined (S216 and 217). Further, in the case of the latter area-centralized network monitoring system, the server 21 does not send a monitoring terminal change request to the system monitoring devices 10 and 20 when a failure occurs in the monitoring terminal, as in the case of manual processing. The processing after S213 can be executed independently.
[0029]
Next, more specific examples of the present invention will be described.
FIG. 8 shows an embodiment of the system monitoring apparatus.
FIG. 9 shows an example of the system management table.
In FIG. 8, a device status monitoring unit 101 monitors the status of each server in the network monitoring system using a device status table 102 that manages the operational status of each server.
[0030]
FIG. 9A shows an example of the device state table 102. The device status table 102 is indexed by the server number and records the operational status of the monitoring terminal. Further, the device state monitoring unit 101 notifies the operator of a change in the state of the device through the device state change notification unit 104 when the device state is changed. The device status control unit 107 controls the connection status of servers in the monitoring system. In addition, the device connection monitoring unit 111 periodically checks the consistency of the connection state between servers.
[0031]
The switching destination device extraction unit 108 extracts a switching destination server when a monitoring terminal failure occurs. For this purpose, the device switching table 103 in which automatic / manual switching is set, the connection status table 110 for managing the connection status between servers, and the switching destination device registration table 109 for registering the server switching destination are referred to. 9B to 9D show examples of the device switching table 103, the connection state table 110, and the switching destination device registration table 109. FIG. Both are indexed by server number, and automatic / manual switching, server number of connection destination, and server number of switching destination are set. The device switching instruction receiving unit 105 receives a switching instruction from the server. In addition, the device switching instruction unit 106 transmits a switching instruction to each server.
[0032]
In relation to FIG. 3, the device switching instruction receiving unit 105 receives a switching instruction including a monitoring terminal change request or a monitoring terminal change report from the server. Hereinafter, although the case where there is a monitoring terminal change request will be described, as is clear from FIG. 3, the same processing is performed when there is a monitoring terminal change report.
[0033]
When the monitoring terminal change request is received, the device state control unit 107 instructs the switching destination device extraction unit 108 to extract the switching destination server. The switching destination device extraction unit 108 refers to the connection state table 110 and the switching destination device registration table 109 and extracts the current connection destination of the failure monitoring terminal and the server number of the switching destination.
[0034]
Furthermore, the device status table 110 is referred to and it is confirmed that the monitoring terminal can be operated in the switching destination server. At that time, with reference to the device switching table 103, when the switching destination server is set manually, a switching instruction including a new switching destination setting from the operator is given. In addition, the server status control unit 107 is notified of the server number of the switching destination. The device state control unit 107 sends a monitoring terminal change instruction to the corresponding server via the device switching instruction unit 106.
[0035]
Next, when the device switching instruction receiving unit 105 receives the monitoring terminal change report from the corresponding server, the device state control unit 107 updates the device state table 110 with the server number of the switching destination, and sets the switching destination device extracting unit 108. To disable the operation of the failure monitoring terminal. Further, the device connection monitoring unit 111 checks the consistency of the updated connection state between servers. The apparatus state monitoring unit 101 notifies the operator of the change of the apparatus state through a display display or the like via the apparatus state change notification unit 104.
[0036]
FIG. 10 shows an embodiment of the area server in the area distributed network monitoring system. FIG. 11 shows an example of the lower state table of FIG.
10, the system monitoring device 10 is the same as that in FIG. 8, and the path communication unit 112 corresponds to the device switching instruction receiving unit 105 and the device switching instruction unit 106 in FIG. The system monitoring apparatus 10 and each area server 11 to 13 are connected by a higher-order path such as LAN or WAN connection, while each area server 11 to 13 and its monitoring terminals 17 to 19 are connected in parallel or serial. Connected by a lower path by.
[0037]
The upper path communication unit 201 of the area server performs path connection and communication control with another server and the system monitoring apparatus 10. Further, the lower path communication unit 207 performs path connection and communication control with the monitoring terminals 17 to 19. The lower level monitoring unit 201 monitors the status of the monitoring terminal and the communication path status with the monitoring terminal. The lower status table 203 records the status of the communication path with the monitoring terminal and the status of the monitoring terminal.
[0038]
As shown in FIG. 11, the lower-level state table 203 is indexed by the area server number, and is secondarily indexed by the monitoring terminal number so that the monitoring terminal can be changed. The normality / abnormality of the communication path with the current monitoring terminal and the normality / abnormality of the monitoring terminal are recorded there.
[0039]
The lower state change notification unit 204 notifies the lower state monitoring unit 201 of the state change when there is a change in the communication path state with the monitoring terminal or a monitoring terminal abnormality notification from the monitoring terminal. The lower path switching instruction receiving unit 205 receives a monitoring terminal change instruction from the system monitoring apparatus 10 via the upper path communication unit 201, and the lower path switching instruction unit 206 follows the instruction from the lower path switching instruction receiving unit 205. Switch the lower path. The area server state monitoring unit 210 controls the maintenance console 501 operated by the operator.
[0040]
Next, an operation when a communication path failure due to disconnection or the like occurs between the lower path communication unit 207 and the monitoring terminal will be described as an example. FIG. 10 shows an example of manual control in which the operator manually switches the monitoring terminal via the maintenance console 501 when a failure occurs in the monitoring terminal.
[0041]
The lower path communication unit 207 detects an abnormality such as no response from the monitoring terminal and notifies the lower state change notification unit 204 of the state change. The lower state change notification unit 204 notifies the lower state monitoring unit 202 that there has been a state change, and further records the state change in the lower state table 203.
[0042]
The lower level monitoring unit 202 refers to the lower level table 203 based on the notification, determines the failure status from the recorded content, notifies the area server status monitoring unit 210 of the failure content, and receives an error from the operator via the maintenance console 501. Wait for instructions. The contents of the instruction are given to the lower path switching instruction receiving unit 205. The lower path switching instruction unit 206 switches the lower path according to the instruction from the lower path switching instruction receiving unit 205.
[0043]
The state change is notified to the lower state change notification unit 204, and the lower state change notification unit 204 notifies the lower state monitoring unit 202 that the state change has occurred, and further records the state change in the lower state table 203. The lower level monitoring unit 202 transmits a monitoring terminal change report to the system monitoring apparatus 10 via the higher level path communication unit 201 based on the notification.
[0044]
FIG. 12 shows another embodiment of the area server in the area distributed network monitoring system.
In FIG. 12, all switching of the monitoring terminals is performed automatically. If the same failure as in FIG. 10 has occurred, the lower-path communication unit 207 detects an abnormality such as no response from the monitoring terminal and notifies the lower-state change notification unit 204 of the state change. The lower state change notification unit 204 notifies the lower state monitoring unit 202 that there has been a state change, and further records the state change in the lower state table 203.
[0045]
The lower level monitoring unit 202 refers to the lower level table 203 based on the notification, determines the failure status from the recorded contents, and transmits a monitoring terminal change request based on the failure status to the system monitoring apparatus 10 via the higher level path communication unit 201. . Thereafter, when the lower path switching instruction receiving unit 205 receives the corresponding monitoring terminal change instruction via the upper path communication unit 201, the lower path switching instruction unit 206 selects the lower path according to the instruction from the lower path switching instruction receiving unit 205. Switch.
[0046]
The state change is notified to the lower state change notification unit 204, and the lower state change notification unit 204 notifies the lower state monitoring unit 202 that the state change has occurred, and further records the state change in the lower state table 203. The lower level monitoring unit 202 transmits a monitoring terminal change report to the system monitoring apparatus 10 via the higher level path communication unit 201 based on the notification.
[0047]
In FIG. 12, a lower-level path switching state management unit 220 and a lower-level extraction unit 221 are further added to the above-described automatic switching configuration of the monitoring terminal according to the present invention. The lower switching state management unit 220 monitors the lower state table 203 and instructs the lower path extraction unit 221 to extract another lower path existing under the server only when the result after path switching is abnormal.
[0048]
As in this example, in the area distributed network monitoring system, only one lower path exists in one server, so the lower path extraction unit 221 in this case notifies the lower state change notification unit 204 of the abnormality after switching. As a result, another area server is designated by the system monitoring apparatus 10 as described with reference to FIG. This operation is also repeated until a normal lower-order path is set.
[0049]
FIGS. 13 and 14 show an embodiment of a server in an area-centralized network monitoring system, and each configuration corresponds to that in FIGS. 11 and 12, respectively.
In the area concentration type of FIGS. 13 and 14, there is one server 21, and a plurality of monitoring terminals 25 to 27 corresponding to each area are connected to the lower path communication unit 207. The rest is the same as FIGS. 11 and 12 described above. Therefore, please refer to the description of FIGS. 11 and 12 for the operations of FIGS.
[0050]
However, the operation of the lower path extraction unit 221 in FIG. 14 is different from that in FIG. 14 and will be described here. Since this example is intended for an area-centralized network monitoring system, one server 21 has a plurality of lower-order paths. Accordingly, the lower path extraction unit 221 can extract another lower path, and the result is notified to the lower path switching instruction reception unit 205. The subsequent operation is as described with reference to FIG. 5, and this operation is repeated until a normal lower-order path is set.
[0051]
【The invention's effect】
As described above, according to the present invention, the system monitoring device that monitors the monitoring server and the monitoring terminal in the area-specific network monitoring system manages the status of each area monitoring server and each monitoring terminal, and the monitoring terminal and the area-specific server. By controlling the connection state between them, it is possible to back up monitoring work between areas.
[Brief description of the drawings]
FIG. 1 is a diagram showing a basic configuration example of an area distributed network monitoring system.
FIG. 2 is a diagram showing a basic configuration example of an area-centralized network monitoring system.
FIG. 3 is a diagram showing an example of a basic processing flow of a system monitoring apparatus according to the present invention.
FIG. 4 is a diagram showing a basic processing flow example (1) of the server according to the present invention;
FIG. 5 is a diagram showing a basic processing flow example (2) of the server according to the present invention;
FIG. 6 is a diagram illustrating an example of a basic processing flow of a monitoring terminal.
FIG. 7 is a diagram showing an example of a basic processing flow of the information collecting apparatus.
FIG. 8 is a diagram illustrating an example of a system monitoring apparatus.
FIG. 9 is a diagram showing an example of a system management table.
FIG. 10 is a diagram showing an embodiment of an area server in an area distributed network monitoring system.
FIG. 11 shows an example of the lower state table of FIG.
FIG. 12 is a diagram showing another embodiment of the area server in the area distributed network monitoring system.
FIG. 13 is a diagram showing an embodiment of a server in an area-centralized network monitoring system.
FIG. 14 is a diagram showing another embodiment of the server in the area centralized network monitoring system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10, 20 ... System monitoring apparatus 11-13, 21 ... Server 14-16, 22-24 ... Monitoring terminal 17-19, 25-27 ... Information collection apparatus

Claims (3)

A system monitoring device that monitors the area server, a plurality of area servers that monitor each area, an information collection device that is connected to each area server and collects monitoring information in the area, and is connected to each area server A monitoring terminal for monitoring the monitoring information in the area, and a monitoring terminal backup method in an area distributed network monitoring system comprising:
The area server notifies the system monitoring device when a failure of the monitoring terminal is detected,
The system monitoring device instructs the backup of the monitoring terminal in which the failure is detected to another area server by the notification,
The other area server instructed receives the monitoring information from the area server that detected the failure without going through the system monitoring device,
The monitoring terminal of the other area server monitors the monitoring information received from the area server that has detected the failure together with the monitoring information in its own area.
A monitoring terminal backup method characterized by the above. A system monitoring device that monitors the area server, a plurality of area servers that monitor each area, an information collection device that is connected to each area server and collects monitoring information in the area, and is connected to each area server A monitoring terminal for monitoring the monitoring information in the area, and a monitoring terminal backup method in an area distributed network monitoring system comprising:
The area server requests the system monitoring device to change a monitoring terminal when a failure of the monitoring terminal is detected,
The system monitoring apparatus instructs backup of the monitoring terminal in which the failure is detected to another area server by the monitoring terminal change request,
The other area server instructed receives the monitoring information from the area server that detected the failure without going through the system monitoring device,
The monitoring terminal of the other area server monitors the monitoring information received from the area server that has detected the failure together with the monitoring information in its own area.
A monitoring terminal backup method characterized by the above. Further, when the other area server does not operate normally, the other area server requests the system monitoring device to change the monitoring terminal,
The system monitoring device instructs backup of the monitoring terminal in which the failure is detected to another area server by the monitoring terminal change request,
The method according to claim 2, wherein the monitoring terminal of the further area server includes monitoring the monitoring information in the area where the failure of the monitoring terminal is detected together with the monitoring information in the own area.

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