JPH0879374A - Remote maintenance monitor system for exchange - Google Patents

Abstract

PURPOSE: To simplify a transmission installation by interconnecting a remote maintenance terminal equipment and a remote maintenance monitor adaptor connecting to an exchange being a maintenance monitor object via a public line. CONSTITUTION: Considering that a remote maintenance terminal equipment 131 and an exchange 101 make 1:1 monitor control. The terminal equipment 131 is connected to a remote maintenance monitor adaptor 201 connecting to an object exchange 101 via a public network 211. The connected adaptor 201 verifies whether or not the terminal equipment 131 making a connection request is an approved terminal equipment. When the terminal equipment is the approved terminal equipment as the result of verification, after monitor start signal is received, the adaptor 201 sends/receives the monitor control information of the control object exchange 101 to/from the terminal equipment to conduct remote maintenance monitor of the exchange 101. The terminal equipment 131 sends an end of monitor to the adaptor 201 when the control of maintenance monitor is finished to interrupt the line connection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote maintenance monitoring system for exchanges on a communication network.

[0002]

2. Description of the Related Art When performing maintenance of an exchange at a station remote from a station where the exchange is installed, a maintenance centralizing device installed at the exchange installation station and a remote maintenance monitoring station are connected by a dedicated line. An example of such a conventional remote maintenance monitoring system for an exchange will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a conventional remote maintenance monitoring system for an exchange. In FIG.
1, 2 are exchange installation stations, 3 are remote maintenance monitoring stations, 11
Reference numerals 1 and 112 denote maintenance aggregation devices installed in the same station as the exchange, and 131 to 133 denote remote maintenance terminal devices.

In such a conventional exchange remote maintenance monitoring system, exchanges 101 to 1 installed in the exchange 1.
The maintenance monitoring information of 03 is aggregated by the maintenance aggregation device 111,
Maintenance monitoring information of the exchanges 104 and 105 installed in the exchange 2 is aggregated by the maintenance aggregation device 112. The aggregated maintenance monitoring information is distributed by the remote maintenance aggregation device 121 installed in the remote maintenance monitoring station via a dedicated line and connected to any of the remote maintenance terminal devices 131 to 133. The control information and the like from the remote maintenance terminal devices 131 to 133 also reach the exchanges 101 to 105 via the reverse route. Accordingly, the remote maintenance terminal devices 131 to 133 can perform remote maintenance and monitoring of any of the exchanges 101 to 105.

[0005]

SUMMARY OF THE INVENTION In the above-mentioned conventional exchange remote maintenance monitoring system, there is always a remote maintenance aggregation device installed in the exchange installation station and a remote maintenance aggregation device installed in the remote maintenance monitoring station. A transmission line that can be used exclusively was required. For this reason, this dedicated line must be secured even when the exchange is not actually monitored, for example, when it is not necessary to monitor the exchange installation station during the daytime when maintenance personnel are located. It was necessary to maintain equipment.

Therefore, an object of the present invention is to set a line between the exchange and the remote maintenance terminal device only when remote maintenance monitoring control is required, and when remote maintenance monitoring is not required,
It is the provision of a remote maintenance monitoring system for exchanges that does not require a line between the remote maintenance terminal device and the exchange.

[0007]

To achieve the above object, the invention according to claim 1 is a remote maintenance monitoring system for an exchange, which monitors and controls the exchange to be monitored from a location remote from the station where the exchange to be monitored is installed. A remote maintenance terminal device having means for connecting to a target exchange to be monitored via a public communication network, means for notifying monitoring start / end, and means for remote maintenance monitoring control of the exchange to be monitored, and the remote maintenance. Means for responding to the connection from the terminal device, means for determining whether the connected remote maintenance terminal device is an approved terminal, and means for bringing the monitored exchange into the remote monitoring state by the start of the received monitoring. And a remote maintenance monitoring additional device having the same.

According to a second aspect of the present invention, in a remote maintenance monitoring system for an exchange, which monitors and controls the exchange to be monitored from a location remote from the station where the exchange to be monitored is installed, the exchange to be monitored and the public communication network are used. Connection means, means for notifying the start and end of monitoring, means for transmitting the start of monitoring, disconnecting the connection and waiting for connection, and means for performing remote maintenance monitoring control of the exchange to be monitored after being connected. A remote maintenance terminal device having, a means for responding to a connection from the remote maintenance terminal device, a means for judging whether the connected remote maintenance terminal device is an approved terminal, and the start of monitoring received, Means for entering the monitored state of the monitored exchange, means for detecting a failure of the monitored exchange in the monitored state,
When a failure is detected, the remote maintenance terminal device is connected to the remote maintenance terminal device, and a remote maintenance monitoring additional device is provided.

[0009]

In the remote maintenance monitoring system of the present invention, since the remote maintenance terminal device and the remote maintenance monitoring additional device connected to the exchange subject to maintenance monitoring are connected via the public line, the exchange installation station. No permanent transmission line is needed between the remote maintenance monitoring station and the remote maintenance monitoring station, and the transmission equipment is simplified.

Further, since one remote maintenance terminal device can arbitrarily select a plurality of exchanges to be monitored and perform maintenance monitoring control of the plurality of exchanges, the number of remote maintenance terminal devices installed can be reduced. .

The remote maintenance terminal device can be used for other work when the exchange is not monitored, and the terminal device can be effectively used.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing the configuration of the remote maintenance monitoring system for an exchange according to the present invention.

In FIG. 2, reference numerals 1 and 2 denote exchange installation stations,
3 is a remote maintenance monitoring station, 201 to 205 are remote maintenance monitoring additional devices installed in the same station as the exchange, and 131 to 133 are remote maintenance terminal devices. 211 is a public communication network.

First, with this configuration, a case where one-to-one maintenance monitoring control is performed between the remote maintenance terminal device and an arbitrary exchange will be described with reference to FIGS. 2 and 3. FIG. 3 is a flow chart for explaining an operation in which the remote maintenance terminal device and the remote maintenance monitoring addition device make a one-to-one connection.

One remote maintenance terminal device (eg 131)
And one exchange (for example, 101) performs one-to-one monitoring control. From the remote maintenance terminal device 131 to the public network 21
1 to connect to the remote maintenance monitoring additional device 201 connected to the target exchange 101 (S31 in FIG. 3).
1, S301). Connected remote maintenance monitoring device 20
1 authenticates whether the remote maintenance terminal device 131 that has requested the connection is an approved terminal (S302, S31).
2). As a method of this authentication, for example, both parties have an encryption number and an encryption key, and they can confirm each other's validity. When it is determined that the terminal is an authorized terminal as a result of the authentication, the remote maintenance monitoring add-on device 201 receives and transmits the monitoring start signal, and then transmits and receives the monitoring control information of the control target exchange 101 to the remote maintenance terminal device 131, and the exchange 1
The remote maintenance monitoring of 01 is performed (S304, S314).

When the control of the maintenance monitoring is finished, the remote maintenance terminal device 131 transmits a monitoring termination to the remote maintenance monitoring addition device 201 (S315, S306) to disconnect the line (S316, S316). This is performed in S307).

In this way, the exchange and the terminal can perform maintenance monitoring control on a one-to-one basis. At this time, since the exchange and the terminal device are connected via the public line, the connection may be made only when the remote maintenance monitoring control is performed.

2 and 4, the case where one remote maintenance terminal device performs maintenance monitoring control of a plurality of exchanges.
This will be described using 5. FIG. 4 is a flowchart showing the operation of the remote maintenance terminal device. FIG. 5 is a flowchart showing the operation of the remote maintenance monitoring addition device.

It is assumed that one remote maintenance terminal device 132 carries out maintenance monitoring control of a plurality of exchanges 102 to 105. First, the exchanges 102 to 105 to be maintenance-monitored by the remote maintenance terminal device 132 are selected (FIG. 4, S40).
1). The remote maintenance terminal devices 132 are connected one by one to the remote maintenance monitoring additional devices connected to the selected target exchange (S402). The connected remote maintenance monitoring additional device authenticates whether the connected remote maintenance terminal device 132 is an approved terminal (S502 in FIG. 5). After that, the remote maintenance terminal device 132 transmits a monitoring start (S404). When this monitoring is started, the terminal information and the like are also transmitted. The remote maintenance monitoring addition device stores the received terminal information (S505). And the remote maintenance terminal device 1
32 disconnects the connection with the remote maintenance monitoring additional device (S40
5) The next remote maintenance monitoring additional device is connected, and this operation is performed with all the remote maintenance monitoring additional devices 202 to 205 connected to the selected target. The remote maintenance monitoring add-on device to which the monitoring start has been sent enters the monitoring state of the connected exchange (S506). One remote maintenance terminal device 1
32 is in a state of waiting for a connection from the remote maintenance monitoring additional device (S407).

The remote maintenance monitoring additional device in the monitoring state is
The connected exchange detects a failure or the like and detects the need to notify the remote maintenance terminal device 132 (S508).
Then, the remote maintenance terminal device 132 stored in the memory is connected via the public communication network 211 (S509). When connected, the remote maintenance monitoring additional device enters the remote monitoring state (S51
1), the remote maintenance terminal device 132 enters the exchange maintenance monitoring mode (S415), and performs remote maintenance monitoring of the exchange.

To cancel the remote maintenance monitoring, the remote maintenance terminal device 132 sends a connection release request to the remote maintenance monitoring additional device to release the connection (S412, S416 and S416).
514, S515). When the connection is released, the remote maintenance monitoring additional device enters the monitoring state of the exchange, and the remote maintenance terminal device enters the connection waiting state.

When the remote maintenance monitoring additional device detects a failure,
If the connection cannot be established even if the remote maintenance terminal device 132 is attempted to be connected, the remote maintenance monitoring additional device stores the failure information in the storage device (S512), and then tries the connection again (S513, S509) after a certain period of time. . The stored failure information is stored in the remote maintenance terminal device 13 when it is connected.
Sent to 2.

As described above, when the remote maintenance monitoring addition device cannot connect to the remote maintenance terminal device 132, there is a connection request exceeding the number of input / output ports for the lines mounted on the remote maintenance terminal device 132. That is the case.

When the remote maintenance monitoring additional device ends the monitoring state of the exchange, the remote maintenance terminal device 132 is connected to the remote maintenance monitoring additional device (S409), and a notification of monitoring end is sent to the remote maintenance monitoring additional device ( After S411, the monitoring state is ended (S518). Also in this case, the remote maintenance monitoring addition device authenticates the connection with the remote maintenance terminal device (S516).

[0026]

As described above, in the remote maintenance monitoring system for an exchange according to the present invention, dedicated permanent transmission between the exchange and the remote maintenance terminal device is not required, and transmission line equipment can be reduced. .

Further, since a plurality of exchanges to be monitored can be maintained and controlled by one remote maintenance terminal device, the number of remote maintenance terminal devices to be installed can be reduced.

When the remote maintenance terminal device does not monitor the exchange, it can be used for other work, and the terminal device can be shared.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a conventional remote maintenance monitoring system for an exchange.

FIG. 2 is a block diagram showing a configuration of a remote maintenance monitoring system for an exchange according to the present invention.

FIG. 3 is a flowchart illustrating an operation in which a remote maintenance terminal device and a remote maintenance monitoring addition device perform a one-to-one connection.

FIG. 4 is a flowchart showing an operation of the remote maintenance terminal device.

FIG. 5 is a flowchart showing an operation of the remote maintenance monitoring addition device.

[Explanation of symbols]

1, 2 exchange installation station 3 remote maintenance monitoring station 111, 112 maintenance aggregation device 131-133 installed in the same station as the exchange 131-133 remote maintenance terminal device 201-205 remote maintenance monitoring addition device installed in the same station as the exchange 211 public Communication network

Claims (2)

[Claims] 1. A remote maintenance monitoring system for an exchange that monitors and controls the exchange to be monitored from a location remote from the station where the exchange to be monitored is installed, and means for connecting to the exchange to be monitored through a public communication network. Remote maintenance terminal device having means for notifying monitoring start and monitoring and means for remote maintenance monitoring control of the exchange to be monitored, means for responding to connection from the remote maintenance terminal device, and the remote maintenance connected A public communication network comprising: a remote maintenance / monitoring addition device having means for determining whether the terminal device is an authorized terminal, and means for bringing the monitored exchange into a remote monitoring state when the received monitoring is started. Remote maintenance monitoring system for exchanges that are connected via. 2. A remote maintenance monitoring system for an exchange that monitors and controls the exchange to be monitored from a location remote from the station where the exchange to be monitored is installed, and means for connecting to the exchange to be monitored through a public communication network. A means for notifying the start and end of monitoring, a means for disconnecting the connection after sending the start of monitoring, and waiting for connection,
A remote maintenance terminal device having means for remote maintenance monitoring and control of a monitored exchange after connection, means for responding to a connection from the remote maintenance terminal device, and a terminal to which the connected remote maintenance terminal device has been approved Means for determining whether the monitored exchange is in the monitoring state by the start of the received monitoring, a means for detecting a failure of the monitored exchange in the monitoring status, and a failure being detected,
A remote maintenance monitoring system for an exchange connected through a public communication network, comprising: a remote maintenance terminal device connected to a remote maintenance terminal device and having a means for establishing a remote monitoring state.