JP2643658B2 - Automatic data transmission speed setting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transmission speed setting device in a communication system having a backup transmission route in addition to an active transmission route as a transmission route.

In recent years, financial institutions have connected automatic cash handling machines (hereinafter referred to as "ATMs") installed at each branch office to a host computer installed at a center via a communication line, and centralized user transactions at the center. Management has been done.

In such a cash handling system,
Since it is necessary to proceed with transactions in real time, it is necessary to immediately deal with line failures and the like.

[0004]

2. Description of the Related Art In a conventional cash handling system, a backup data transmission route is provided in addition to an active data transmission route, so that a line failure or the like can be dealt with promptly.

In this case, the working data transmission route is configured by connecting a working modem (hereinafter referred to as "modem") provided at a center and a modem provided at a branch via a dedicated line, for example. You.

[0006] On the other hand, the backup data transmission route is configured by connecting a backup modem provided at a center and a modem provided at a branch office by a public line.

As a backup modem corresponding to a certain branch A, an active modem corresponding to another branch B is often used.

Thus, in a configuration in which one modem is used for both the active modem and the backup modem, if the data transmission rates of the branch A and the branch B are different, for example, the branch A
A failure occurs in the active data transmission route on the side, and even if the failure is switched to the backup data transmission route, the center and the branch A cannot be connected.

Therefore, in such a case, it is necessary to match the data transmission rates of the backup modem at the center and the modem at the branch A.

Conventionally, the center and the branch A are connected by a backup data transmission route by adjusting the data transmission speed of the backup modem at the center to the data transmission speed of the modem at the branch A.

FIGS. 8 and 9 show a backup sequence using the conventional data transmission rate setting device as described above. In the figure, this sequence is divided into an operator, a network management unit, a calling modem, and a called modem.

Here, the calling modem means a backup modem on the center side. On the other hand, the called modem means a modem on the branch A side.

In FIG. 8, X1 and X3 indicate connection processing, and X2 indicates speed change processing.

As shown in the figure, conventionally, the data transmission speed is adjusted by repeating the connection process while changing the data change speed until the connection is successful. The figure shows a case where the data transmission speeds match in two connection processes.

[0015] However, in such a configuration, when connection failures overlap, the data transmission speed setting time becomes long, and there is a problem that a failure cannot be dealt with promptly.

[0016]

As described above, conventionally, the data transmission speed is adjusted by repeating the connection process.
There is a problem that the setting time of the data transmission speed becomes long and it is not possible to cope with the failure immediately.

Accordingly, an object of the present invention is to provide a data transmission speed setting device capable of shortening the data transmission speed setting time.

[0018]

FIG. 1 is a block diagram showing the principle configuration of the present invention.

In the figure, reference numeral 11 denotes a data transmission speed storage means for storing the data transmission speeds of the backup transmission device of the first station and the transmission device of the second station in the backup data transmission route.

When a failure occurs in the working data transmission route, the data transmission speed of the backup transmission device and the data transmission speed of the second station are determined based on the data stored in the data transmission speed storage means. It is a data transmission speed determining means for determining whether or not the data transmission speed is high.

13 is a data transmission speed judging means 12
If the data transmission rates of the backup transmission apparatus are not equal to each other, the data transmission rate of the backup transmission apparatus is changed so that the data transmission rate of the backup transmission apparatus matches the data transmission rate of the second station transmission apparatus. Data transmission speed changing means.

[0022]

In the above configuration, the data transmission speed of the backup transmission device and the data transmission speed of the second station-side transmission device are stored in the data transmission speed storage means 11 in advance.

In this state, if a failure occurs in the working data transmission route, the data transmission speed determining means 1
2, it is determined whether or not the data transmission rates of the backup transmission apparatus and the transmission apparatus of the second station are equal, based on the contents stored in the data transmission rate storage means 11.

If it is determined by this determination that the data transmission speeds of the two stations are not equal, the data transmission speed of the backup transmission device is adjusted to match the data transmission speed of the transmission device of the second station. The data transmission speed of the transmission device is changed.

Thus, the data transmission speed can be adjusted without repeating the connection processing, so that when a failure occurs, the opposite station can be connected immediately.

[0026]

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

FIG. 2 is a block diagram showing the configuration of the data transmission rate setting device according to the present invention. FIG. 3 is a block diagram showing a configuration of a first example of a communication system to which the present invention is applied.

Here, before describing the data transmission rate setting device of FIG. 2, the configuration of the communication system of FIG. 3 will be described.

The communication system shown in FIG. 3 is configured, for example, as a cash handling system. In the figure,
The case where the center and three branches A, B, and C are connected is shown as a representative.

In FIG. 3, reference numeral 31 denotes a host computer installed at the center. 32A, 32B, 32C
Are ATMs installed in branches A, B and C, respectively.

33A, 33B, and 33C are branches A,
Modems installed at the center for each of B and C. Each of the modems 33A, 33B, and 33C is provided with a communication control device (hereinafter, referred to as a communication control device).
(Referred to as “CCU”) 34 via the host computer 3
1 connected.

Reference numerals 35A, 35B, and 35C are modems installed in each branch. Each modem 35A, 35B, 35C
Are connected to the corresponding ATMs 32A, 32B and 32C, respectively.

A dedicated line 36A connects the modems 33A and 35A. Similarly, 36B is a modem 33B,
35B is a dedicated line for connecting 35B, and 36C is a modem 3
This is a dedicated line connecting 3C and 35C.

Reference numeral 37 denotes a public line connecting the modems 33A, 33B, 33C and the modems 35A, 35B, 35C.

Reference numeral 38 denotes a network management unit provided at the center for managing a network. The network management unit 38 is connected to the modem 3 via a network interface processor (hereinafter, referred to as “NIP”) 39.
3A, 33B, and 33C.

Here, the NIP 39 is a modem 33A,
The processor has a function of monitoring a network state such as an operation state of 33B and 33C, and controlling a network connection state under the control of the network management unit 38.

A monitoring line 40A is set between the modems 33A and 35A, and is connected to the network management unit 38 via the NIP 39. Similarly, 40B is a monitoring line set between modems 33B and 35B, and 40C is a monitoring line.
Is a monitoring line set between the modems 33C and 35C.

Reference numeral 41 denotes a database for storing various information on the network.

The communication between the center and the branch A is usually
This is performed via the modems 33A and 35A and the dedicated line 36A. On the other hand, when a failure occurs in the data transmission route, communication is performed with the modems 33B and 35A via the public line 37.

That is, the modems 33A and 35A and the dedicated line 36A constitute an active data transmission route between the center and the branch A, and the modems 33B and 35A and the public line 37
Similarly, a backup data transmission route is configured.

Similarly, the working data transmission route between the center and the branch B is based on the modems 33B and 35B and the dedicated line 36.
B, and the backup data transmission route is composed of the modems 33C and 35B and the public line 37.

The working data transmission route between the center and the branch C includes modems 33C and 35C and a dedicated line 36B.
And the backup data transmission route is
It comprises modems 33A and 35C and a public line 37.

Here, the data transmission route failure means disconnection of the dedicated lines 36A, 36B, 36C and modems 33A, 3C.
3B, 33C, etc.

As described above, each of the modems 33A, 33B,
33C is used as an active modem and also as a backup modem. Therefore, in addition to a normal modulation / demodulation function, an adapter unit for operating as a backup modem is provided.

When a failure occurs in each of the working data transmission routes, any of the modems 33A, 33B, 33C
Is used as a backup modem, and is registered in the database 41 in advance.

The above is the schematic configuration of the first example of the communication system to which the present invention is applied.

Next, returning to FIG. 2, the configuration of one embodiment of the data transmission rate setting device which is a feature of the present invention will be described.

The data transmission speed setting device shown in FIG. 2 is provided in the network management unit 38. The data transmission speed setting device plays a role in adjusting the data transmission speed of the backup modem to the data transmission speed of the branch-side modem when switching the data transmission route from the current data transmission route to the backup data transmission route.

The data transmission speed setting device shown in the figure is
Needless to say, it may be realized not only by hardware but also by software.

In FIG. 2, reference numeral 21 denotes a called modem input unit for an operator to input a called modem name. The incoming modem input section 21 is constituted by, for example, a keyboard provided in the network management section 38.

Here, the terminating modem refers to a modem provided on the branch side in the active data transmission route in which a fault has occurred. For example, if a failure occurs in the working data transmission route between the center and the branch A, the modem 35A becomes the called modem.

The called modem is determined by the operator based on the contents of the failure displayed on the display of the network management unit 38.

Reference numeral 22 denotes a calling modem selection unit for selecting a calling modem corresponding to the input called modem. Here, the calling modem means a backup modem. In the case of the above example, the modem 33B is the calling modem.

The selection of the calling modem is performed in the database 4
This is performed based on the backup modem information registered in No. 1.

Reference numeral 23 denotes a data transmission rate determining unit for determining whether the data transmission rates of the calling modem and the called modem are equal.

The data transmission speed judging section 23 is provided for each of the modems 33 A, 33 registered in the database 41 in advance.
Based on the data transmission rates of B, 33C, 35A, 35B, and 35C, it is determined whether the data transmission rates of both modems are equal.

Reference numeral 24 denotes a data transmission speed changing unit for changing the data transmission speed of the calling modem based on the result of the judgment by the data transmission speed judgment unit 23.

That is, the data transmission speed changing unit 24
If the data transmission rate of the two modems is not equal to each other, the data transmission rate of the calling modem is adjusted so that the data transmission rate of the calling modem matches the data transmission rate of the called modem. Change the transmission speed.

The above is the configuration of the data transmission speed setting device of one embodiment.

Next, a backup sequence using the data transmission speed setting device will be described with reference to FIG.

FIG. 4 shows a case where the backup sequence is executed by the operator and the network management unit 3 in the same manner as in FIG. 8 and FIG.
8, the processes of the calling modem and the called modem are shown separately.

Now, it is assumed that communication is being performed between the center and the branch A.

In this case, the transmission data of the host computer 31 is supplied to the modem 33A via the CCU 34, and is modulated by the modem 33A.
To the modem 35A. Thereafter, the signal is demodulated by the modem 35A and supplied to the ATM 32A.

On the other hand, the transmission data of the ATM 32A is modulated by the modem 35A and then sent to the modem 33A via the dedicated line 36A. Then, after being demodulated by the modem 33A, the host computer 31
Supplied to

In this state, for example, the dedicated line 36
A, when a failure occurs, this failure information is transmitted to the modem 33A.
Is supplied to the network management unit 38 from the NIP 39 via the NIP 39.

Network management unit 38 that has received the failure information
In, the failure information is analyzed, and the analysis result is displayed on a display. Thus, the operator can confirm that a failure has occurred in the dedicated line 36A.

Thus, a backup sequence as shown in FIG. 4 is executed.

In this sequence, first, an input process of a called modem name is executed by the operator (step S11). In this case, the called modem is
The modem 35A is input.

Next, a process for selecting a calling modem corresponding to the incoming modem input by the network management unit 38 is executed (step S12). This selection is made based on the information stored in the database 41. In our example,
The modem 33B is selected.

The selected calling modem 33B is displayed on its display by the network management unit 38.
Thereby, the operator can confirm the calling modem name (step S13).

Next, the operator sends a call modem 33B and a call modem 35 to the network management unit 38.
A connection is instructed (step S14).

As a result, the network management unit 38 determines whether the data transmission speeds of the two modems 35A and 33B are equal (step S15). This determination is made based on the incoming modem 35 stored in the database 41.
A and the data transmission speed of the calling modem 33B.

As a result of this determination, both modems 35A, 33B
If it is determined that the data transmission speeds are not equal, the network management unit 38 instructs the modem 33B to change the data transmission speed (step S16).

Thus, in the modem 33B, the data transmission speed is changed (step S1).
7). In this case, the data transmission rate to be changed is specified by the network management unit 38. Thereby, the data transmission speed of the modem 33B is adjusted to the data transmission speed of the modem 35A.

The end of the change processing is monitored by the network management unit 38. The network management unit 38
When recognizing the end of the data transmission speed change process (step S18), the adapter of the modem 33B is instructed to set the telephone number of the modem 35B (step S1).
9).

As a result, the public line 3 is connected from the modem 33B.
A call signal is supplied to the modem 35A via the terminal 7 (step S20). As a result, the public line 3 is connected from the modem 35A.
Then, a response signal is returned to the modem 33C via 7 (step S21).

As a result, a connection completion notice is sent from the adapter section of the modem 33B to the network management section 38 (step S22). As a result, a connection completion display is displayed on the display of the network management unit 38 (step S23). Thereby, the operator can confirm the connection completion (step S24).

Thus, the backup sequence is completed.

According to this embodiment described in detail above, the set time of the data transmission speed can be shortened as compared with the conventional case.

This is because the data transmission speed is not set by repeating the connection process, but the database 41 is set.
This is because the data transmission speed of the calling modem is set based on the data transmission speed registered in.

In the above description, the case where the present invention is applied to the communication system in which the backup transmission route is constituted by the public line 37 has been described.

However, the present invention may be applied to a communication system in which a backup transmission route is constituted by a dedicated line. As such a communication system, for example, a system as shown in FIG. 5 can be considered. In the figure, 4
2A, 42B and 42C are backup dedicated lines.

In the above description, a case has been described in which the present invention is applied to a communication system in which one modem is used as both a working modem and a backup modem.

However, the present invention may be applied to a communication system having a modem dedicated for backup in addition to the working modem. As such a communication system, for example, a system as shown in FIG. 6 can be considered. In the figure,
43A and 43B are backup-only modems, and the modems 33A and 33B are used only as working modems.

In the above description, the case where the present invention is applied to a communication system that connects one station and a plurality of stations has been described.

However, the present invention may be applied to a communication system connecting only two stations. As such a communication system, for example, a system as shown in FIG. 7 can be considered. The figure shows a case where two backup modems are provided.

In the above description, the case where the present invention is applied to the setting of the data transmission speed of the modem has been described. That is, a case has been described in which the present invention is applied to the setting of the data transmission speed of a transmission device that transmits digital signals in analog form.

However, the present invention can also be applied to the setting of the data transmission speed of a transmission device for digitally transmitting data.

In addition, it goes without saying that the present invention can be variously modified without departing from the scope of the invention.

[0090]

As described in detail above, according to the present invention,
Since the data transmission speed can be set without repeating the connection process, it is possible to quickly back up the failure route when a failure occurs.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle configuration of the present invention.

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

FIG. 3 is a block diagram showing a configuration of a first example of a communication system to which the present invention is applied;

FIG. 4 is a diagram for explaining the operation of one embodiment.

FIG. 5 is a block diagram showing a configuration of a second example of the communication system to which the present invention is applied;

FIG. 6 is a block diagram showing a configuration of a third example of the communication system to which the present invention is applied;

FIG. 7 is a block diagram showing a configuration of a fourth example of a communication system to which the present invention is applied;

FIG. 8 is a diagram for explaining a part of the operation of the conventional data transmission speed setting device.

FIG. 9 is a diagram for explaining a part of the operation of the conventional data transmission speed setting device.

[Explanation of symbols]

 11 data transmission speed storage means 12 data transmission speed judgment means 13 data transmission speed changing means

Claims (3)

(57) [Claims] 1. A data transmission route between a first station and a second station, a current data transmission route using a current transmission device provided in the first station and a backup transmission device. A communication system having a backup data transmission route using
Data transmission rate storage means for storing the data transmission rates of the backup transmission device of the second station and the transmission device of the second station
(11), when a failure occurs in the working data transmission route, the backup transmission device of the first station in the backup data transmission route based on the storage content of the data transmission speed storage means (11). A data transmission rate determining means (12) for determining whether or not the data transmission rates with the transmission device of the second station are equal; and the data transmission rate determining means (12) determining that the data transmission rates are not equal. Then, the data transmission speed changing means (13) for changing the data transmission speed of the backup transmission device so that the data transmission speed of the backup transmission device matches the data transmission speed of the transmission device of the second station. ). A data transmission speed setting device comprising: 2. A plurality of said second stations, wherein said working transmission device is provided for each second station, and each working transmission device is connected to a second working station by a corresponding working data transmission route. 2. The data transmission speed setting device according to claim 1, wherein the data transmission speed setting device is also used as a backup transmission device of a second station different from the second station. 3. The data transmission rate setting device according to claim 1, wherein said transmission device is a modulation / demodulation device for transmitting a digital signal in an analog manner.