JPH06208521A - Communication repeater trouble countermeasure control method for on-line system - Google Patents

Abstract

PURPOSE:To restart service through an easy operation while holding functions as a terminal as it is by activating the function of a communication repeater added to a specific terminal when the trouble communication repeater occurs. CONSTITUTION:Power-ON operation by the depression of a special key is detected in S1, a back-up system parameter file 12 is read in S2, and communication procedures A-C are read in S3-S5; and a system parameter file 21 is read in S7, a system parameter file 31 is read in S8, and then an application program is read in S9 to enable a backup terminal to be actuated. Then CPBK and a command are inputted in S11 and then when the input is correct, application programs 21 and 31 are linked in S14 to carry out a repeating operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling failure countermeasures for communication relays in online systems, and more particularly to a method for controlling failure countermeasures for communication repeaters in online systems for financial institution stores.

[0002]

2. Description of the Related Art In a conventional communication repeater failure countermeasure control method for an online system, the configuration of the online system is different in each function of each block, but it is apparently the same as the configuration shown in FIG. 2 to which the present invention is applied. If you explain
The maintenance worker removes the hard disk of the communication relay device 3 that has failed, then removes the hard disk of the terminal 4, inserts the hard disk removed from the communication relay device 2, and then switches the line switches 2 and 11 to change the address of the terminal 4. To the address of the communication repeater 3, and finally the other terminal 7,
By restarting the power supply together with 8, 9 and 10, the online system is started up again.

Since the terminal 4 replaces the hard disk, it operates only as a communication repeater.

[0004]

The above-described conventional communication relay device failure countermeasure control method for the online system uses the hard disk of the communication relay device and inserts it into the terminal of the online system for use. There is a problem that it takes time because it is necessary to change the system generation, such as resetting the address so that it operates, and it also becomes a problem that it can not be used as an online system terminal when using the alternative function. is there.

An object of the present invention is to activate the function of a communication repeater added to a specific terminal when a failure occurs in the communication repeater, and restart the work by a simple operation while maintaining the function as the terminal. It is an object of the present invention to provide a communication relay failure countermeasure control method for an online system that enables the above.

[0006]

According to a communication relay device failure countermeasure control method for an online system of the present invention, a host computer and a plurality of terminals are connected via a communication relay device, and between the host computer and each terminal. In the communication relay failure countermeasure control method of the online system that communicates by
The relay function of the communication relay is incorporated in a specific terminal among the plurality of terminals.

The communication relay device failure countermeasure control method of the online system according to the present invention switches the connection between the host computer and the communication relay device and between the communication relay device and each terminal when a failure occurs in the communication relay device. The relay function of the specific terminal may be activated by restarting the terminal as a new communication relay device.

According to the communication relay device failure countermeasure control method of the online system of the present invention, two logical paths are defined in the communication procedure section that defines the communication procedure in the system parameter provided in a specific terminal, and the system procedure is defined in the system parameter. Each terminal is provided with a node file for storing the designated number of the partner node in order to establish a logical path with the specific terminal, and a flag is set to a specific node file determined in advance from the node file. The communication may be relayed via the specific terminal by selecting one of the two logical paths defined in the communication procedure unit at the start of communication.

[0009]

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

FIG. 2 is a block diagram showing the configuration of an online system for a financial institution store including the present invention, which is also used for explaining the conventional art.

The host computer 1 is connected to the communication repeater 3 and the terminal 4 via the line switch 2.
The communication repeater 3 is connected to a plurality of terminals 4, 7, 8, 9, 10 via two sets of communication lines 5, 6. Communication line 5
On the side, it is connected to terminals 4, 7, and 8, and on the communication line 6 side,
It is connected to the terminals 9 and 10 via the line switch 11.

Normally, in a state where there is no failure, data is transferred from the host computer 1 to the communication repeater 3 using the communication procedure A. The communication repeater 3 uses terminals 4, 7, 8 according to the communication procedure B or terminals 9, 1 according to the communication procedure C according to the destination.
Transfer data to 0.

If the communication repeater 3 fails, the line switch 2 is switched to send data from the host computer 1 to the terminal 4 without going through the communication repeater 3. The terminal 4 substitutes the function of the communication repeater 3 and transmits data to the terminals 7 and 8 of the communication procedure B and the terminals 9 and 10 of the communication procedure C. Further, since the terminal 4 can simultaneously function as an online terminal, it processes data addressed to the terminal 4. The terminals 4, 7, and 8 have a CRT, a passbook / slip printer, a hard disk, a CPU, and a keyboard, and may be connected to a cash processing machine.

The above description has been made mainly from the aspect of operation on the network. Next, an outline of the operation from the viewpoint of operation will be described.

First, if the communication relay 3 fails, online transactions cannot be performed, so the line switch 2 is switched from the communication relay 3 to the terminal 4. Since the terminal 4 does not operate as an alternative device only by switching, the power is turned off once, and the power is turned on while pressing the special key of the keyboard (not shown) of the terminal 4. By pressing the special key, the system parameters are changed so that the communication procedures A and C can be operated. After the power is turned on, when the terminal 4 starts up, the transaction start screen is displayed on the CRT. Here, the command "CPBK" to substitute from the keyboard
Enter and execute. Due to the internal processing of the terminal 4, the normal online terminal is changed to an online terminal including the function of the communication relay 2 (hereinafter referred to as a backup terminal). Here, the fact that it normally operates as a backup terminal is displayed on the CRT, and online transactions with other terminals are possible.

Details of means for automatically changing system parameters as a backup terminal and internal processing by command input will be described with reference to FIGS. 1 and 3. FIG. 1 is a flow chart of the operation as a backup terminal of one embodiment of the present invention. Further, FIG. 3 is an explanatory diagram for explaining the system parameters.

First, in order to operate as a backup terminal, when the power is turned on, the special key of the keyboard is pressed. In step (hereinafter referred to as S) 1, it is determined whether the special key is pressed or not. If the special key is pressed, S is pressed.
In step 2, the backup system parameter file 12 is read. The system parameter file 12 defines the communication procedure to be used, and subsequently, in steps S3, S4 and S5, the communication procedures A, B and C are sequentially read into the CPU.

When the power is turned on without pressing the special key, S
1 to S6 normally starts up, and the terminal 4 operates only on-line terminal. Another system parameter file is OS.
Selected, and only the communication procedure B is read.

After reading the communication procedures A, B, and C, the system parameter file 21 is read in S7, and then the system parameter file 31 is read in S8. As shown in FIG. 3 (a), the system parameter file 21 is mainly used by the communication procedures A, B, and C, and is unique for each terminal. The contents are normally defined both at startup and backup, and conventionally only one logical unit was defined for one terminal, but the LU number should be defined as two different numbers. This makes it possible to logically have two paths. The system parameter file 31 shown in FIG. 3B is a file necessary for the application program to recognize the destination.

System parameter file 3 by S8
After the reading process of 1 is started, the application program is subsequently read in S9, and when it becomes operable, the transaction initial screen is displayed in S10. Here, by inputting the command "CPBK" from the keyboard in S11, it is determined in S12 whether the application program has correctly input the command. If the command is incorrect, in S13, "The command is incorrect. Correct command Please input the message. ”Is displayed on the screen and the operator is prompted to re-input. When the correct command is entered, the message "Command accepted." Is displayed on the screen and S1S
Then, the system parameter files 21 and 31 are linked, and the process ends. When the command of “CPBK” is accepted as the link method, the application program plays the role of the communication relay device 3, and selects GB01 from CP and GB01 in the system parameter file 31 shown in FIG. 3B. Then, the node file 32 is flagged. Also, in order to establish a logical path with the partner terminal, a flag is set in the node files 33 and 34 whose partner node is GB01. In this way, the terminal 4 searches for the value of its own LU in the system parameter file 21.
That is, the own node GB01 own L of the node file 32
Applying ULU8000 to the system parameter 21 results in GB01 and LU8000 at the time of backup,
One logical path for backup is confirmed. This serves as a window for receiving data from the host computer 1, and at the same time, can receive data addressed to the terminal 4. Therefore, it becomes possible to substitute the function of the communication relay device 3 and simultaneously operate as an online terminal. Also, since it plays the role of a communication relay, it is necessary to establish a logical path with other terminals.
The own node of the flagged node file 33 is GB0
2, the own LU is LU1002, so GB02 and LU10 for backup of the system parameter file 21
It becomes a combination of 02. Similarly, when a logical path with another terminal is established, online transaction with the host computer 1 becomes possible. On the contrary, in the normal state, since the special key of the keyboard is not pressed, the node files other than the node files 32, 33, and 34 of the system parameter file 31 are flagged, and the system parameter file 21 is also set. Since all the relevant parts of are in normal time, all terminals 4, 7, 8, 9,
10 establishes a logical path with the communication relay device 3 to enable online transactions.

[0021]

As described above, according to the present invention, the system parameter file has at the same time the definition of the logical path for operating as the communication relay and the definition of the logical path for making the terminal appear as the communication relay. , The application program sets a flag at a corresponding position in the system parameter file, so that the operation for performing the operation as the communication repeater can be simplified while continuing the operation as the online terminal. is there.

[Brief description of drawings]

FIG. 1 is a flowchart of an operation as a backup terminal according to an embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of an online system for a financial institution branch.

FIG. 3 is an explanatory diagram illustrating system parameters.

[Explanation of symbols]

 1 host computer 2 line switch 3 communication repeater 4, 7, 8, 9, 10 terminal 5, 6 communication line 11 line switch 12, 21, 31 system parameter file 32, 33, 34 node file

Claims (3)

[Claims] 1. A communication repeater failure countermeasure control method for an online system in which a host computer and a plurality of terminals are connected via a communication repeater, and communication is performed between the host computer and each terminal. A communication relay failure countermeasure control method for an online system, characterized in that the relay function of the communication relay is built into a specific terminal among the terminals. 2. By switching connections between the host computer and the communication relay and between the communication relay and each terminal when a failure of the communication relay occurs, and restarting a specific terminal as a new communication relay. The communication relay failure countermeasure control method for an online system according to claim 1, wherein the relay function of the specific terminal is activated. 3. Two logical paths are defined in a communication procedure section that defines a communication procedure in a system parameter provided in a specific terminal, and each terminal defines a logical path with the specific terminal in the system parameter. A node file for storing the designated number of the partner node is provided in order to set the number, and a flag is set for a specific node file determined in advance from the node file, and two nodes defined in the communication procedure unit at the start of communication of each terminal 2. The communication relay device failure countermeasure control method for an online system according to claim 1, wherein communication is relayed via the specific terminal by selecting one of the logical paths.