JP2002064488A - Collective equipment operation monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a collective equipment monitoring system capable of eliminating troublesome maintenance works associated with increasing services supplied by an intelligent network and quickly flexibly responding to a plurality of signal mode specifications between an operation device and an operation terminal. SOLUTION: A given collective monitoring apparatus is connected to an operation terminal through a data transfer network and is connected to the operation device by a logic circuit or a physical circuit. The collective monitoring apparatus connects the operation terminal to the operation device based on a request of the operation terminal. Further, the apparatus converts a signal between the operation terminal and the operation device by a predetermined method, in the case where a condition defined by the signal mode specification between the operation device and the collective monitoring apparatus differs from a condition defined by the signal mode specification between the operation terminal and the collective monitoring apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated facility operation monitoring system in a communication network.

[0002]

2. Description of the Related Art In a conventional operation monitoring system of a service control device in an intelligent network, a plurality of service control devices are collectively connected to a service control device operation terminal installed for each operation device by a logical line or a physical line. Also, the operation terminals are collectively connected to only specific operation devices by logical lines or physical lines. Therefore, more operation monitoring systems than the number of services are constructed, and more operation terminals than the operation monitoring system are installed for operating the operation monitoring system.

[0003] With the widespread use of intelligent networks and the diversification of services provided to users, the number of service control devices and operation devices has been remarkably increasing. In this case, when one maintenance person monitors the operation of a plurality of operation devices by the conventional operation monitoring method, it is necessary to operate the operation terminals more than the number of services to be monitored and the maintenance person's work becomes very complicated. There was a problem of becoming.

[0004] In addition, diversification of services provided to users frequently adds to signals transmitted and received between operation devices and operation terminals. For this reason, the operation monitoring system is required to simultaneously cope with the signaling system specifications between a plurality of operation devices and operating terminals, and also needs to respond promptly and flexibly to newly added signaling system specifications. there were.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the complexity of maintenance work due to the increase in services provided by an intelligent network, and to reduce the number of signaling system specifications between an operation device and an operation terminal. It is an object of the present invention to provide an intensive equipment operation monitoring system capable of promptly and flexibly responding to a change in the system.

[0006]

In order to achieve the above object, a centralized facility operation monitoring system according to the present invention provides a plurality of exchanges for connecting a voice line or a data transfer line, and instructs the exchanges to operate. One or a plurality of service control devices, one or a plurality of operation devices for monitoring operation of the service control device, one or a plurality of operation terminals for operating the operation device, the operation device, and the operation In a centralized facility operation monitoring system in a communication network comprising one or more centralized monitoring devices intensively connected to terminals, any centralized monitoring device and an operation terminal are connected by a data transfer network, and the centralized monitoring device and The operation device is connected by a logical line or a physical line,
A case where the centralized monitoring device connects the operation terminal requesting monitoring and the operation device by a data transfer network and a logical line or a physical line, and operates from any operation terminal allowed for the operation device, and When operating from any operation device permitted for the terminal, the conditions specified in the signaling system specifications between the operation device and the centralized monitoring device, and the signaling system between the operating terminal and the centralized monitoring device When the condition specified in the specification is different, the centralized monitoring device performs signal conversion between the two by a preset method.

In addition, the centralized facility operation monitoring system of the present invention provides an operation device and an operation terminal connected via an arbitrary centralized monitoring device, except for the operation device and the operating terminal other than the centralized monitoring device. One or a plurality of sub-aggregate monitoring devices that collectively connect between the devices are provided, and when it is detected that the operation of the central monitoring device is abnormal when a connection request is made from the operation terminal, the central monitoring device is Does not transmit a response to the operation terminal or transmits an abnormal response, whereby the operation terminal can switch the route to an arbitrary sub-aggregate monitoring device.

[0008] Further, the centralized facility operation monitoring system of the present invention provides an operation device and an operation terminal connected via an arbitrary centralized monitoring device, except for the operation device and the operating terminal other than the centralized monitoring device. If one or more sub-aggregation monitoring devices are connected in an integrated manner, and the aggregation monitoring device autonomously detects that the operation is abnormal, the aggregation monitoring device operates with respect to the sub-aggregation monitoring device. A configuration may be adopted in which an abnormal signal is transmitted, and the sub-integrated monitoring device notifies the operation device and the operation terminal to change the signal transmission destination for operation monitoring work to the sub-integrated monitoring device. .

[0009] Further, the centralized facility operation monitoring system of the present invention provides an operating device and an operating terminal connected via an optional centralized monitoring device to the operating device and the operating terminal other than the centralized monitoring device. If one or more sub-aggregate monitoring devices are connected collectively and the autonomous detection of the abnormal operation of the centralized monitoring device is detected, the centralized monitoring device sends the operation to the operation device and the operation terminal. A configuration may be adopted in which a signal transmission destination for the operation monitoring task is notified to be changed to an arbitrary sub-aggregate monitoring device.

[0010] Further, the centralized facility operation monitoring system of the present invention provides an operation apparatus and an operation terminal connected via an arbitrary centralized monitoring apparatus, except for the operation apparatus and the operating terminal other than the centralized monitoring apparatus. One or a plurality of sub-aggregate monitoring devices that collectively connect between the devices are provided, and the sub-aggregate monitor periodically sends an operation confirmation instruction signal to the aggregate monitor, and sends a signal indicating an abnormality from the aggregate monitor. When receiving or when a signal indicating a predetermined time confirmation result cannot be received, a configuration is provided to notify the operation device and the operation terminal to change the signal transmission destination for the operation monitoring operation to the sub-aggregate monitoring device. can do.

[0011] Further, the centralized facility operation monitoring system of the present invention provides an operating device and an operating terminal connected via an optional centralized monitoring device to the operating device and the operating terminal other than the centralized monitoring device. One or a plurality of sub-aggregate monitoring devices that collectively connect the devices are provided, and the sub-aggregate monitor periodically sends an operation confirmation instruction signal to the aggregate monitor, and confirms that the aggregate monitor is abnormal. If confirmed, the operation device and the operation terminal may be configured to be notified to change the signal transmission destination for the operation monitoring operation to the sub-integrated monitoring device.

According to the centralized facility operation monitoring system of the present invention, the operation device and the operation terminal are connected collectively to the centralized monitoring device, and the operation terminal and the operation terminal are connected to each other in accordance with a request of a maintenance person who uses the operation terminal. Connect the operation device. Therefore, all operation terminals and operation devices connected to the centralized monitoring device can be connected in any combination. Further, by providing the centralized monitoring device with a signal conversion function for each signaling system specification between the operation device and the operation terminal, the operation monitoring system can support a plurality of signaling system specifications. In addition, by securing a sub-integration monitoring device as a bypass route, the operation monitoring operation can be continued even when a failure occurs in the aggregation monitoring device serving as a connection aggregation point.

[0013]

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

[First Embodiment] FIG. 1 is a diagram for explaining the configuration of a first embodiment of an integrated facility operation monitoring system according to the present invention. 1 is an integrated equipment operation monitoring system of the present invention, 5 is a service control device, and 6 is an exchange, for example, a public exchange. The integrated facility operation monitoring system 1 of the present invention includes an operation terminal 2, an integrated monitoring device 3, an operation device 4, and a data transfer network 7.

The operation terminal 2 can select and operate one or a plurality of operation devices including the operation device 4 collectively connected to the centralized monitoring device 3. The centralized monitoring device 3 has a function of collectively connecting to one or a plurality of operation terminals including the operation terminal 2 and one or a plurality of operation devices including the operation device 4, and to receive a request from the operation terminal 2. The operation terminal 2 and the operation device 4 are connected based on the operation. The operation device 4 monitors the operation of one or a plurality of service control devices including the service control device 5 at the same time according to the operation performed by the operation terminal 2 via the centralized monitoring device 3. The service control device 5 controls one or a plurality of exchanges including the exchange 6 together with other service control devices connected to the operation device 4 to provide services to users.

FIG. 2 is a diagram showing an operation procedure of the integrated facility operation monitoring system 1 in the first embodiment, and FIG. 3 is a flowchart showing an operation of the integrated monitoring apparatus 3. The operation terminal 2 operated by the user specifies the operation device 4 and transmits a connection request to the centralized monitoring device 3 connected to the operation terminal 2 (step S1). Centralized monitoring device 3
Receives the connection request (step S2), transmits a connection request to the operation device 4 (step S3).
The operation device 4 receives the connection request (step S4), and if the connection is possible, the centralized monitoring device 3
Is transmitted to the server (step S5). Centralized monitoring device 3
Receives the response (step S6), transmits the response to the operation terminal 2 (step S7), and connects the operation terminal 2 to the operation device 4. Upon receiving the response (Step S8), the operation terminal 2 transmits an operation instruction to the centralized monitoring device 3 (Step S9).

When the centralized monitoring device 3 receives the operation instruction (step S10), if the operation device 4 cannot respond to the instruction from the operation terminal 2, the preset operation device 4 response is performed. (Step S11), and transmits an operation instruction to the operation device 4 (Step S12). The operation device 4 receives the operation instruction (Step S13), transmits a response to the centralized monitoring device 3 (Step S14), and performs the specified operation. The centralized monitoring device 3 receives the response (step S15), and if the response from the operation device 4 cannot be handled by the operation terminal 2, a signal indicating that the preset operation terminal 2 can handle the response. (Step S16), and transmits it to the operation terminal 2 (step S16).
17). The operation terminal 2 receives the response transmitted from the centralized monitoring device 3 (step S18).

The necessary operations are completed by repeating steps S9 to S18, and after the necessary monitoring period is completed, the operation terminal 2 transmits a release request to the centralized monitoring device 3 (step S19). When receiving the release request (step S20), the centralized monitoring device 3 transmits the release request to the operation device 4 (step S21). The operation device 4 receives the release request (Step S22), and transmits a response to the centralized monitoring device 3 when the release is possible (Step S23). The centralized monitoring device 3 receives the response (step S24), transmits the response to the operation terminal 2 (step S25), and operates the operation terminal 2 and the operation device 4 together.
Open connection with. When the operation terminal 2 receives the response (step S26), a series of operations ends.

[Embodiment 2] FIG. 4 is a diagram for explaining the configuration of an embodiment 2 of an integrated facility operation monitoring system according to the present invention. The integrated facility operation monitoring system 1 of the present invention shown in FIG. 4 includes a sub-integrated monitoring device 8 in addition to the operation terminal 2, the integrated monitoring device 3, the operation device 4, and the data transfer network 7.

The operation terminal 2 can select and operate one or a plurality of operation devices including the operation device 4 which is collectively connected to the centralized monitoring device 3 and the secondary centralized monitoring device 8. . Centralized monitoring device 3
And the sub-integrated monitoring device 8 has a function of collectively connecting to one or a plurality of operation terminals including the operation terminal 2 and one or a plurality of operation devices including the operation device 4. The operation terminal 2 and the operation device 4 are connected based on the request. The operation device 4 monitors the operation of one or a plurality of service control devices including the service control device 5 simultaneously according to the operation performed by the operation terminal 2 via the centralized monitoring device 3 or the secondary centralized monitoring device 8. The service control device 5 controls one or a plurality of exchanges including the exchange 6 together with other service control devices connected to the operation device 4 to provide services to users.

FIG. 5 is a diagram showing an operation procedure of the entire integrated facility operation monitoring system 1 in the second embodiment, and FIG. 6 is a flowchart showing an operation of the operation terminal 2 in the second embodiment. The operation terminal 2 operated by the user specifies the operation device 4 and transmits a connection request to the centralized monitoring device 3 connected to the operation terminal 2 (step S27). The centralized monitoring device 3 receives the connection request (step S28) and attempts to transmit the connection request to the operation device 4,
When an abnormal operation is detected in the processing in the central monitoring device 3 (step S29), the central monitoring device 3 transmits a response indicating that there is an abnormal operation to the operation terminal 2 or does not transmit a response. Informs the operation terminal 2 that the operation is abnormal (step S30), and terminates a series of operations (step S44).

The operation terminal 2 receives a response indicating that there is an abnormal operation from the centralized monitoring device 3 or does not receive a response within a preset time (step S31).
Sets the connection destination in the sub-integrated monitoring device 8 according to a preset procedure (step S32).
A connection request is transmitted to (step S33). The sub-integrated monitoring apparatus 8 receives the connection request from the operation terminal 2 (Step S34). Subsequent operations among the operation terminal 2, the sub-integrated monitoring device 8, and the operation device 4 are the same as those in steps S3 to S26 except that the integrated monitoring device 3 is changed to the sub-integrated monitoring device 8.

On the other hand, the operation terminal 2 is
Is specified, the connection request is transmitted to the centralized monitoring device 3 connected to the operation terminal 2 (step S35), and the abnormal operation is not detected when the centralized monitoring device 3 receives the connection request (step S36). (Step S37), Steps S7 to S
If an abnormal operation is detected at the time when the same steps S38 to S41 as in 10 are completed (step S42), the centralized monitoring device 3 transmits a response indicating that there is an abnormal operation to the operation terminal 2. Alternatively, by not transmitting a response, the operation terminal 2 is notified of the abnormal operation (step S43), and a series of operations is terminated (step S44).

If the operation terminal 2 receives a response indicating that there is an abnormal operation from the centralized monitoring device 3 or does not receive a response within a preset time (step S45)
Follows the above-described steps S32 to S34. Subsequent operations among the operation terminal 2, the sub-integrated monitoring device 8, and the operation device 4 are the same as those in steps S3 to S26 except that the integrated monitoring device 3 is changed to the sub-integrated monitoring device 8.

[Embodiment 3] The apparatus configuration of the centralized facility operation monitoring system 1 of the present invention in Embodiment 3 is the same as that of FIG. 4, and the operation terminal 2, the centralized monitoring apparatus 3, the operation apparatus 4, and the data transfer network 7 In addition, a sub-integrated monitoring device 8 is included.

FIG. 7 is a diagram showing an operation procedure of the integrated facility operation monitoring system 1 in the third embodiment, FIG. 8 is a flowchart showing an operation of the integrated monitoring apparatus 3 in the third embodiment, and FIG. Secondary aggregation monitoring device 8 in Example 3
6 is a flowchart showing the operation of the first embodiment. When the centralized monitoring device 3 autonomously detects an abnormal operation in the processing in the centralized monitoring device 3 (step S46), the centralized monitoring device 3 determines whether the connection destination can be switched to the secondary centralized monitoring device 8 according to a preset procedure. A confirmation notification is transmitted (step S47). The sub-integrated monitoring apparatus 8 receives the connection destination switchability confirmation notification (step S4).
8) If the sub central monitoring device 8 can replace the central monitoring device 3, a response is transmitted to the central monitoring device 3 (step S49), and a connection destination switching instruction is transmitted to the operation terminal 2 and the operation device 4. (Step S52).

In this case, if the sub central monitoring device 8 cannot replace the central monitoring device 3,
Changes the target sub-integrated monitoring device according to a preset procedure, and transmits a connection destination switchability confirmation notification again. When the sub-integration monitoring device 8 that can replace the aggregation monitoring device 3 is determined, the aggregation monitoring device 3 receives the response (step S50) and ends the operation (step S51).

The operation terminal 2 receives the connection destination switching instruction from the sub-integration monitoring device 8 (step S53), changes the setting of the connection destination to the sub-integration monitoring device 8 (step S54), and executes the reconnection procedure. (Step S55). Operation device 4
Also, it receives the connection destination switching instruction from the sub-integration monitoring device 8 (step S56), and changes the setting of the connection destination to the sub-integration monitoring device 8 (step S57).

[Embodiment 4] The apparatus configuration of the centralized facility operation monitoring system 1 of the present invention in Embodiment 4 is the same as that of FIG. 4, and the operation terminal 2, the centralized monitoring apparatus 3, the operation apparatus 4, and the data transfer network 7 In addition, a sub-integrated monitoring device 8 is included.

FIG. 10 is a diagram showing an operation procedure of the integrated facility operation monitoring system 1 according to the fourth embodiment.
13 is a flowchart illustrating the operation of the centralized monitoring device 3 according to the fourth embodiment. When the centralized monitoring device 3 autonomously detects an abnormal operation in the processing in the centralized monitoring device 3 (step S
58), the central monitoring device 3 designates the secondary central monitoring device 8 as a new connection destination according to a preset procedure, and
Then, a connection destination switching instruction is transmitted to the operation device 4 (step S59), and the operation is terminated (step S60). The operation terminal 2 receives the connection destination switching instruction from the centralized monitoring device 3 (step S61), and changes the connection destination setting to the secondary centralized monitoring device 8
(Step S62), and the reconnection procedure is executed (step S63). The operation device 4 also receives the connection destination switching instruction (step S64), and changes the setting of the connection destination to the secondary centralized monitoring device 8 (step S65).

[Embodiment 5] The apparatus configuration of the centralized facility operation monitoring system 1 of the present invention in Embodiment 5 is the same as that of FIG. 4, and the operation terminal 2, the centralized monitoring apparatus 3, the operation apparatus 4, and the data transfer network 7 In addition, a sub-integrated monitoring device 8 is included.

FIG. 12 is a diagram showing the operation procedure of the entire integrated facility operation monitoring system 1 in the fifth embodiment.
13 is a flowchart illustrating an operation of the sub-integrated monitoring apparatus 8 according to the fifth embodiment. The sub aggregation monitoring device 8 periodically transmits a normal operation confirmation instruction to the aggregation monitoring device 3 specified in advance (step S66). The centralized monitoring device 3 receives the normal operation check instruction (step S67), and executes the normal operation check (step S68). If the result of the check is normal, a normal response is transmitted to the sub-integrated monitoring apparatus 8 (step S69). When receiving the normal response (step S70), the sub-integration monitoring device 8 transmits a normal operation confirmation instruction to the aggregation monitoring device 3 again after a certain period of time (step S71) (step S72). Centralized monitoring device 3
Receives the normal operation check instruction (step S73), and executes the normal operation check in response thereto (step S7).
Four).

If the result of the confirmation by the central monitoring apparatus 3 is abnormal, the central monitoring apparatus 3 transmits an abnormal response to the sub central monitoring apparatus 8 or does not transmit a response (step S75). Is ended (step S76). When there is no response or an abnormal response is received within a predetermined time (step S77), the sub-integrated monitoring device 8 designates the sub-integrated monitoring device 8 as a new connection destination for the operation terminal 2 and the operation device 4. To send a connection destination switching instruction (step S7
8). The operation terminal 2 receives the connection destination switching instruction from the sub-integration monitoring device 8 (step S79), changes the setting of the connection destination to the sub-integration monitoring device 8 (step S80), and executes a reconnection procedure (step S81). ). The operation device 4 also receives the connection destination switching instruction (step S82), and changes the connection destination setting to the sub-integrated monitoring device 8 (step S83).

[Embodiment 6] The apparatus configuration of the centralized facility operation monitoring system 1 of the present invention in Embodiment 6 is the same as that of FIG. 4, and the operation terminal 2, the centralized monitoring apparatus 3, the operation apparatus 4, and the data transfer network 7 In addition, a sub-integrated monitoring device 8 is included.

FIG. 14 is a diagram showing an operation procedure of the centralized facility operation monitoring system 1 according to the sixth embodiment.
16 is a flowchart showing the operation of the sub-integration monitoring device 8 in the sixth embodiment, and FIG. 16 is a flowchart showing the operation of the aggregation monitoring device 3 in the sixth embodiment. The sub aggregation monitoring device 8 periodically transmits a normal operation confirmation instruction to the aggregation monitoring device 3 specified in advance (step S84). The centralized monitoring device 3 receives the normal operation confirmation instruction (step S8).
5) Then, a normal operation check is performed in response thereto (step S86). If the result of the check is normal, a normal response is transmitted to the sub-integrated monitoring apparatus 8 (step S87). When receiving the normal response (step S88), the sub-aggregation monitoring device 8 transmits a normal operation confirmation instruction to the aggregation monitoring device 3 again after a certain period of time (step S89) (step S90). The centralized monitoring device 3 receives the normal operation check instruction (step S91), and executes the normal operation check (step S92).

If the result of the confirmation by the central monitoring device 3 is abnormal, the central monitoring device 3 transmits an abnormal response to the secondary central monitoring device 8 (step S93), and
The sub aggregation monitoring device 8 is designated as a new connection destination to the operation terminal 2 and the operation device 4 and a connection destination switching instruction is transmitted (step S94), and the operation is terminated (step S9).
Five). Upon receiving the abnormal response (Step S96), the sub-integrated monitoring device 8 stops transmitting the normal operation confirmation instruction to the integrated monitoring device 3 periodically (Step S97). Operation terminal 2
Receives the connection destination switching instruction from the sub-integration monitoring device 8 (step S98), changes the setting of the connection destination to the sub-integration monitoring device 8 (step S99), and executes the reconnection procedure (step S100). The operation device 4 also receives the connection destination switching instruction (step S101), and changes the setting of the connection destination to the secondary centralized monitoring device 8 (step S102).

[0037]

As described above, according to the present invention, it is possible to monitor the operation of all service control devices connected to a plurality of operation devices from the same operation terminal. Operation monitoring operation, and can flexibly cope with the expansion of the operation device. In addition, by providing the centralized monitoring device with a function corresponding to a plurality of signaling systems between the operation device and the operation terminal, it is possible to mix and add a plurality of signaling systems caused by diversification of services.
It becomes possible to respond promptly and flexibly. Furthermore, by duplicating the centralized monitoring device, detecting a failure of the centralized monitoring device and switching to the secondary centralized monitoring device,
The reliability of the operation monitoring system can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining a configuration of an embodiment of an integrated facility operation monitoring system of the present invention.

FIG. 2 is a diagram illustrating an operation procedure of the entire intensive equipment operation monitoring system according to the first embodiment.

FIG. 3 is a flowchart illustrating an operation of the centralized monitoring device 3 according to the first embodiment.

FIG. 4 is a diagram for explaining a configuration of another embodiment of the integrated facility operation monitoring system of the present invention.

FIG. 5 is a diagram illustrating an operation procedure of the entire intensive equipment operation monitoring system according to the second embodiment.

FIG. 6 is a flowchart illustrating an operation of the operation terminal according to the second embodiment.

FIG. 7 is a diagram illustrating an operation procedure of the entire intensive equipment operation monitoring system according to the third embodiment.

FIG. 8 is a flowchart illustrating an operation of the centralized monitoring device according to the third embodiment.

FIG. 9 is a flowchart illustrating an operation of a sub-integration monitoring device according to the third embodiment.

FIG. 10 is a diagram illustrating an operation procedure of the entire integrated facility operation monitoring system according to the fourth embodiment.

FIG. 11 is a flowchart illustrating an operation of the centralized monitoring device according to the fourth embodiment.

FIG. 12 is a diagram illustrating an operation procedure of the entire intensive equipment operation monitoring system according to the fifth embodiment.

FIG. 13 is a flowchart illustrating an operation of a sub-integration monitoring device according to a fifth embodiment.

FIG. 14 is a diagram illustrating an operation procedure of the entire integrated facility operation monitoring system according to the sixth embodiment.

FIG. 15 is a flowchart illustrating an operation of the sub-integration monitoring device according to the sixth embodiment.

FIG. 16 is a flowchart illustrating an operation of the centralized monitoring device according to the sixth embodiment.

[Description of Signs] 1 Centralized equipment operation monitoring system 2 Operation terminal 3 Centralized monitoring device 4 Operation device 5 Service control device 6 Switch 7 Data transfer network 8 Secondary aggregation monitoring device

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H04M 3/42 H04L 11/08 11/00 301 (72) Inventor Ryoichi Aoyama 2-3-1 Otemachi, Chiyoda-ku, Tokyo No. Nippon Telegraph and Telephone Corporation (72) Inventor Koji Isshiki 2-3-1 Otemachi, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation F-term (reference) 5B034 BB02 CC01 DD02 5B042 GB09 JJ02 JJ08 5K024 AA79 BB08 CC09 CC10 EE06 FF03 5K030 GA14 HB11 HC01 HC13 JA10 LB13 MA01 MB01 MD02 5K101 KK12 KK13 LL01 MM07 NN03 NN18 UU19

Claims (6)

[Claims] 1. A plurality of exchanges for connecting a voice line or a data transfer line, one or a plurality of service control devices for instructing the exchanges to operate, and one or more for monitoring the operation of the service control device. Centralized equipment in a communication network including a plurality of operation devices, one or more operation terminals for operating the operation devices, and one or a plurality of centralized monitoring devices collectively connected to the operation devices and the operation terminals In an operation monitoring system, an arbitrary centralized monitoring device and an operation terminal are connected by a data transfer network, the centralized monitoring device and the operation device are connected by a logical line or a physical line, and an operation terminal and an operation device that request monitoring are connected to each other. The centralized monitoring device connects to the data transfer network and logical or physical lines, and Conditions specified in the signaling specifications between the operating device and the centralized monitoring device when operating from any of the allowable operating terminals and when operating from any of the allowable operating devices for the operating terminal If the conditions specified by the signaling system specifications between the operation terminal and the centralized monitoring device are different, the centralized monitoring device performs signal conversion between the two by a preset method. Equipment operation monitoring system. 2. An operation device and an operation terminal connected via an arbitrary central monitoring device, wherein one or a plurality of terminals that collectively connect the operation device and the operation terminal other than the central monitoring device are connected. If a sub-aggregate monitoring device is provided and it is detected that the operation of the aggregating monitor is abnormal when a connection request is made from the operation terminal, whether or not the aggregation monitoring device sends a response to the operation terminal The intensive equipment operation monitoring system according to claim 1, wherein an abnormal response is transmitted, whereby the operation terminal switches the route to an arbitrary sub-integration monitoring device. 3. An operation device and an operation terminal connected via an arbitrary centralized monitoring device are connected to one or a plurality of terminals that collectively connect the operation device and the operating terminal other than the centralized monitoring device. If a sub-aggregation monitoring device is provided and the aggregation monitoring device autonomously detects that the operation is abnormal, the aggregation monitoring device transmits an operation abnormal signal to the sub-aggregation monitoring device, and The centralized facility operation monitoring system according to claim 1, wherein the monitoring device notifies the operation device and the operation terminal to change a signal transmission destination for the operation monitoring operation to the sub-integrated monitoring device. . 4. An operation device and an operation terminal connected via an arbitrary centralized monitoring device are connected to one or a plurality of terminals that collectively connect the operation device and the operating terminal other than the centralized monitoring device. If a sub-aggregate monitoring device is provided and the centralized monitoring device autonomously detects that the operation is abnormal, the centralized monitoring device can set the signal transmission destination for operation monitoring work to the operation device and operation terminal. The centralized facility operation monitoring system according to claim 1, wherein the secondary centralized monitoring device is notified of the change. 5. An operation device and an operation terminal connected via an arbitrary centralized monitoring device, wherein one or a plurality of devices that collectively connect the operating device and the operational terminal other than the centralized monitoring device are connected. A sub-integrated monitoring device is provided, and the sub-integrated monitoring device periodically transmits an operation confirmation instruction signal to the centralized monitoring device, and when a signal indicating an abnormality is received from the centralized monitoring device or indicates a predetermined time confirmation result. 2. The centralized management system according to claim 1, wherein when a signal cannot be received, the operation device and the operation terminal are notified to change a signal transmission destination for operation monitoring work to the sub-aggregate monitoring device. Equipment operation monitoring system. 6. An operation device and an operation terminal connected via an arbitrary centralized monitoring device, wherein one or a plurality of devices that collectively connect the operation device and the operational terminal other than the centralized monitoring device are connected. A sub-aggregation monitoring device is provided, and the sub-aggregation monitoring device periodically sends an operation confirmation instruction signal to the aggregation monitoring device, and when it is confirmed that the aggregation monitoring device is abnormal, the operation device and the operation terminal 2. The intensive equipment operation monitoring system according to claim 1, wherein a notification is sent to the sub-integration monitoring apparatus to change a signal transmission destination for an operation monitoring operation.