JPS5821974B2 - Exchange remote maintenance system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an exchange remote maintenance system, that is, a system for maintaining an exchange by remote control.0 Conventionally, when remotely maintaining an electronic exchange, a dedicated remote maintenance line is used as shown in FIG. 7-1 and 7-2 were set up independently between the remote maintenance station and each of the exchanges 2-A and 2-B.

That is, when transmitting information from the remote maintenance station 1 to the exchanges 2-A and 2-B, the remote maintenance processing device 3 uses the data transmitter/receiver 6.
-1.6-2 via dedicated transfer lines 7-1.7-2 set up between data transmitters/receivers 6-A and 6-B of exchanges 2-A and 2-B, respectively. Transfer information.

On the other hand, the exchange processing devices 4-A and 4-B are data transceivers 6-
When confirming that the maintenance information has been transferred to A and 6-B, maintenance and operation operations are performed according to the information.

In the figure, reference numeral 5 indicates a trunk for the communication path network 8, 9 indicates a trunk line, 10 indicates a subscriber telephone, and 11 indicates a subscriber line.

In the case of the conventional system, as shown in FIG. 1, a transfer line for information transfer is required for each exchange, and the frequency of information transfer is infrequent, resulting in poor usage efficiency and high costs.

Further, a transmitter/receiver 6-16-2 on the remote maintenance station side is also required for each exchange, which is inefficient and expensive.

In addition, in order to improve system reliability, transfer lines may be duplicated, which is extremely disadvantageous economically.

In addition, in order to make it more economical, a method is being considered in which a call line is used as a transfer line and the connection is made via the network of the exchange being maintained, but in this method, the call line connection function of the exchange would stop due to a failure. In some cases, the transfer line cannot be connected, resulting in low reliability.

In order to solve these drawbacks, the present invention does not use a dedicated transmission line to transfer maintenance information, but instead uses a general telephone line for remote maintenance, and provides a line that automatically transfers maintenance information even when a failure occurs. The purpose is to make this type of system more economical.

According to the present invention, in order to maintain telephone exchanges or data exchanges by remote control, the purpose of this is to maintain voice or communication relay lines installed between exchanges and communication paths or communications established in the network of the exchanges to be maintained. In a remote maintenance method in which maintenance information is transferred via a transfer path, the exchange to be maintained is equipped with a maintenance information data transmission/reception terminal and an emergency operation circuit accommodated in the network, and the exchange to be maintained is equipped with a data transmission/reception terminal for maintenance information and an emergency operation circuit, The system controls the data transmitting/receiving terminal to set up a transfer path connecting the data transmitting/receiving terminal and the data transmitting/receiving terminal of the remote maintenance station using a telephone or communication line, and the maintenance target exchange Therefore, when the exchange operation is stopped, the network is controlled by the emergency operation circuit to set the transfer path.

The invention will now be described in detail with reference to the drawings.

FIG. 2 is a block diagram showing connections in one embodiment of the present invention.

Here, the number of exchanges to be remotely maintained from the remote maintenance station is three, but the number is not limited to this.

In addition, there are two exchanges that are directly connected to the remote maintenance station, and each has only one channel for transmitting maintenance information, but this is not particularly limited.

Furthermore, there are no particular limitations on the type of connection of the telephone lines between the exchanges.

When transmitting maintenance information from the remote maintenance station 1 to the exchange 2-C to be maintained, the remote maintenance processing device 3 of the remote maintenance station 1 considers the route that can be connected to the exchange 2-C, and sends the maintenance information to the exchange 2-A.
The data transmitting/receiving terminal device 12-1 connected to the terminal is activated.

The data transmitting/receiving terminal 12-1 operates as a subscriber terminal and sends an outgoing request to the network 5-A of the exchange 2-A via the subscriber line 11, and the data transmitting/receiving terminal 12-C of the maintenance target exchange 2-C. Communicate the subscriber number assigned to the subscriber.

The exchange 2-A performs a connection operation according to normal call processing operations, selects the trunk 8-A connected to the exchange 2-C, and connects the communication line 9-AC and the trunk 8- of the exchange 2-C.
The connection request and the subscriber number are transmitted to network 5-C of exchange 2-C via C.

Similarly, the exchange 2-C performs a connection operation according to the normal call processing operation, selects the subscriber line 11 connected to the data transmission/reception terminal 12-C, and completes the incoming call connection.

When the exchange processing device 4-C of the exchange 2-C recognizes that the data transmitting/receiving terminal 12-C receives a call, it controls the data transmitting/receiving terminal 12-C to respond by operating as a subscriber terminal.

This completes the setting of the transfer path between the remote maintenance station 1 and the exchange 2-C, and thereafter information is transferred in the same manner as in the conventional system.

Next, when the information transfer is completed, the remote maintenance processing device 3 controls the data transmitting/receiving terminal 12-1 and sends a disconnection request to the exchange 2 through the exchange 2-A by operating as a subscriber terminal.
-C, and the normal call disconnection action releases and terminates everything.

Here, the telephone line 9-AC used for information transfer between the remote maintenance station 1 and the exchange 2-C can be used for normal telephone calls.

In the above explanation, the transfer path between remote maintenance station 1 and exchange 2-C was set via exchange 2-A, but exchange 2-B
It is also possible to perform this through the exchange 2-A1 and exchange 2-B.

Furthermore, information can be transferred between the exchange 2-A or 2-B and the remote maintenance station 1 in the same manner.

The same applies when information is transferred from the exchanges 2-A, 2-B, 2-C, etc. to the remote maintenance station 1.

The feature of the system according to the present invention is that the data transmitting/receiving terminal (12-
1, 12-212-A, 12-B, 12-C, etc.)
Just like a regular telephone, a subscriber number is given, and the connection is made through normal call processing operations.

As a result, a normal telephone line is used as a transfer path.

Also, the data transmission/reception terminal of remote maintenance station 1 (12-1, 1
Switches such as 2-2 are also subject to remote maintenance (2-A, 2-B,
2-C, etc.), and it is possible to limit the number to an optimal number in consideration of frequency of use and reliability.

Furthermore, the installation location of the remote maintenance station can be easily moved by changing the subscriber number assigned to the data transmitting/receiving terminal.

FIG. 3 is a diagram illustrating a function for remotely restarting operation in the embodiment of FIG. 2 when the remote maintenance target exchange 2 becomes a failure.

The numbers in the figure indicate the same things as in FIG. 2.

In the figure, when the communication path connection function of the exchange processing device 4 of the exchange 2 subject to maintenance stops operating due to a failure, the emergency operation circuit 13 detects the stoppage of operation, and the data transmitting/receiving terminal 12
and controls the network 5 to automatically request connection to the remote maintenance station 1.

When the connection is completed via the trunk 8 and the relay line 9, the exchange processing device 4 is activated to receive various dynamic information necessary for restarting the exchange operation from the remote maintenance station 1, and when the reception is completed, the normal exchange operation is started. At the same time, the emergency operation circuit 13 is disconnected, and the transmission line for transmitting maintenance information set up with the remote maintenance station 1 is also released.

As explained above, according to the present invention, since a general telephone line is used without providing a special transmission line for transmitting maintenance information, highly efficient use of the line is possible, and data transmission and reception at a remote maintenance station is possible. It is possible to limit the number of terminal devices to the optimum number without requiring the same number of terminal devices as the number of exchanges to be maintained, which is economical.

In addition, multiple routes can be realized relatively easily and economically to satisfy reliability.

Furthermore, even if the communication path connection function of the exchange processing device is impaired, information transfer is possible.

Furthermore, by giving a subscriber number to the data transmitting/receiving terminal of the remote maintenance station and treating it as a telephone or data terminal, the remote maintenance station can be installed at any location.

That is, in the conventional method, the installation location of the remote maintenance station must be determined, for example, at the center point, taking into account all the exchanges to be maintained, which causes problems such as securing land, but according to the present invention,
It has the advantage that it can be installed at any location where a telephone line route exists, and the installation conditions are considerably relaxed.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a conventional remote maintenance system, Fig. 2 is a block diagram of an embodiment of the present invention, and Fig. 3 is a block diagram of an emergency operation circuit included in the maintenance target exchange in the embodiment of Fig. 2. It is. 1...Remote maintenance station, 2, 2-A, 2-B,
2-C... Switching equipment subject to maintenance, 3...
Remote maintenance processing device, 4, 4-A, 4-B, 4
-C... Exchange processing device, 5, 5-A, 5
-B, 5-C...Network, 6-1
, 6-2... Data transmitter/receiver, 7-1, 7-2
...Transfer line, 8, 8-A, 8-C...
・Trunk, 9,9-AC...Telephone line, 10
...Subscriber, 11 ...Subscriber line, 12
-1, 12-2. 12-A, 12-B, 12-C...Data transmission/reception terminal equipment 1.13...Emergency operation circuit.

Claims (1)

[Scope of Claims] 1. In order to remotely maintain a telephone exchange or a data exchange, via a telephone or communication relay line installed between the exchanges and a call path or communication path set in the network of the exchange to be maintained. In a remote maintenance method that transfers maintenance information via a transfer path, the exchange to be maintained is equipped with a maintenance information data transmission/reception terminal and an emergency operation circuit housed in the network, and the exchange to be maintained controls the network. A transfer path connecting the data transmitting/receiving terminal device and the data transmitting/receiving terminal device of the remote maintenance station is set up using a telephone or communication line, and the maintenance target exchange is unable to operate due to a failure in its control device or processing device. When the switch is stopped, the network is controlled by the emergency operation circuit to set the transfer route. 2. The remote maintenance system for an exchange according to claim 1, wherein the data transmitting/receiving terminal is assigned a subscriber number and has a connection control function as a telephone or a data terminal. 3. Claims characterized in that the transfer path connecting the data transmitting/receiving terminal of the maintenance target exchange and the data transmitting/receiving terminal of the remote maintenance station is established via a maintenance target exchange different from the maintenance target exchange. The exchange remote maintenance method described in paragraph 1.