JPS63158651A - Alternate output system for transmission data to terminal - Google Patents

Abstract

PURPOSE:To efficiently improve a data output by referring to information indicating a master and slave relationship between terminal equipments held to a terminal management table and selecting the terminal equipment of the master relation of the terminal equipment of a destination for transmitting data. CONSTITUTION:An alternate means 7 instructs to refer to the information for indicating a connecting relation between the transmission destination terminal and a host computer 10 held in the terminal management table 3 to a terminal state recording means 6 according to an information from an information processing subsystem 2. The information is received from the means 6 and the connecting relation between the transmission destination terminal and the computer 10 is decided. During a connection, a transmitting means 9 is instructed so as to transmit the data to the transmission destination terminal equipment. During a non-connection, a selecting means 8 is instructed so as to select the master terminal equipment of the transmission destination terminal equipment. Then, the selected result is received from the means 8 and the presence and the absence of the master terminal equipment of the transmission destination terminal equipment are decided based thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a detour output method for transmitting data to a terminal when data is transmitted from an information processing subsystem to a terminal device.

[Conventional technology]

Conventionally, the output method for sending data to this type of terminal is that the information processing subsystem notifies the sending means to send the data to the destination terminal device, and the sending means that receives the notification sends the data to the terminal device. This was accomplished by sending the .

[Problem that the invention seeks to solve]

In the conventional terminal-oriented transmission data output method described above, the terminal device that is the destination of the data transmission is specified, so the terminal device cannot receive the transmitted data due to a terminal equipment failure etc. when transmitting data. If this happens, there is a disadvantage that the transmitting means must wait until the terminal device recovers to a state in which it can receive the transmitted data, and then must retransmit the data again.

[Failure to solve the problem]

In addition to the conventional information processing subsystem capable of transmitting data to a terminal device from an information processing subsystem operating on a host computer/computer, the terminal of the present invention uses a detour output method for sending data.

a terminal management table means for holding information indicating a master-slave relationship between terminal devices and information indicating a connection state between the terminal device and the host computer; and registering information indicating a master-slave relationship between the terminal devices in the terminal management table means. , a master-slave relationship recording means for deleting or referencing; a terminal state recording means for registering or referring to the terminal management table means information indicating the connection state between the terminal device and the host computer; and a terminal state recording means for registering or referring to the terminal management table means; a selection means for referencing information indicating a master-slave relationship between terminal devices by the master-slave relationship recording means and selecting a terminal device in a master relationship of the terminal device to be a data transmission destination; The terminal status recording means refers to information indicating the connection status between the terminal device to which the data is to be sent and the host computer/computer, and when the terminal device is in a state in which data cannot be received, the selection means a detour means for notifying the transmitting means to transmit a message to a terminal device in a master relationship with the selected terminal device;

A master-slave relationship between a transmitting means for transmitting a message to a terminal device, which is a main relation device of the terminal device notified by the detour means, and the terminal device held in the terminal management table means according to an instruction from an operator. and a changing means for dynamically changing information indicating the above using the master-slave relationship recording means.

〔Example〕

Next, the present invention will be explained using the drawings.

Referring to FIG. 1, the online information processing system according to one embodiment of the present invention includes terminal devices 12, 13, 14, an information processing subsystem 2, a terminal management table 3, a master-slave relationship recording means 4, a changing means 5, It is comprised of a host computer 10 having a terminal status recording means 6, a detour means 7, a selection means 8, and a transmission means 9.

Next, regarding the processing by the detour means 7 and the selection means 8,
This will be explained with reference to FIG. 1, FIG. 2, and FIG. 3, respectively.

Referring to FIGS. 1 and 2, the detour means 7 starts the process of transmitting data to the destination terminal device in response to a notification from the information processing subsystem 2 in step 21. Next, in step 22, the terminal status recording means 6 is instructed to refer to information indicating the connection relationship between the destination terminal and the host computer 10, which is held in the terminal management table 3. Then, in step 23, the information is received from the terminal status recording means 6, and in step 24, the connection relationship between the destination terminal and the host computer 10 is determined based on the information, and if the connection is established, the connection relationship between the destination terminal and the host computer 10 is determined. Proceed to step 30, and if not connected, proceed to step 25. Step 25
Then, the detour means 7 instructs the selection means 8 to select the main terminal device of the transmission destination terminal device. Next, in step 26, the selection result is received from the selection means 8, and in step 27, based on the selection result, it is determined whether or not there is a main terminal device of the transmission destination terminal device. If there is no main terminal device, the process proceeds to step 28, and if there is a main terminal device, the process proceeds to step 29. In step 28, the transmission process to the transmission destination terminal device is determined to be a failure, and in step 29, the terminal device serving as the transmission destination is changed from the terminal device notified by the information processing subsystem 2 to the main terminal device. In step 30, the transmitting means 9 is instructed to transmit data to the destination terminal device, and in step 31, the processing as the detouring means 7 is terminated.

Referring to FIG. 3, in step 41, the selection means 8 starts the process of selecting the main terminal device of the transmission destination terminal device based on the instruction from the detour means 7, and in step 42, the selection means 8 starts the process of selecting the main terminal device of the transmission destination terminal device from the terminal management table 3. Read information.

The structure of management information, which is a component of the terminal management table 3 at this time, is shown in FIG. 51 is key information indicating which terminal device the management information belongs to, and 52 is information indicating the connection relationship between the host computer and the terminal device. 53 is information indicating whether the terminal device is a main terminal device or a slave terminal device, 54 is information indicating the main terminal device of the terminal device, and 55 is information indicating the slave terminal device of the terminal device.

If the corresponding main terminal device or slave terminal device does not exist, information indicating that the corresponding terminal device does not exist is stored in 54 or 55. At this time, in step 43,
Based on the management information 54, it is determined whether the main terminal device is designated as the transmission destination terminal. If it has been specified, the process proceeds to step 44; if it has not been specified, the process proceeds to step 47. In step 44, the terminal management table 3 is searched using the information indicating the main terminal device obtained in 43 as a key, and the management information of the main terminal device is extracted. In step 45, the connection status between the terminal device and the host computer is checked using the management information 52, the attribute of the main terminal is checked using the management information 53, and the slave terminal device is checked using the management information 55, and the main terminal device sends Determine whether the data can be used as a detour amount cutting edge. If available, the process advances to step 46; if not, the process advances to step 47. In step 46, information indicating the searched main terminal device is output, and in step 47, information indicating that the main terminal device does not exist is output. Then, in step 48, the processing as the selection means 8 is ended.

Next, the overall operation of this embodiment will be specifically explained.

Referring to FIG. 1, the online information processing system 11
In the above, when an attempt is made to send data from the information processing subsystem 2 to the terminal device 13, the terminal device 13 is in a state where it cannot receive the transmitted data. The invention will be described by way of example.

The terminal management table 3 includes the terminal device 12 and the terminal device 13.
It is assumed that information indicating the master-slave relationship between the two has been registered. This information includes information indicating the detour amount of transmission data that the terminal device 12 attempted to output to other terminal devices, information indicating the terminal device (hereinafter referred to as the main terminal device) that is the tip of the cutting edge, and information indicating the detour amount of the transmission data that the terminal device 13 attempted to output to other terminal devices. It consists of information indicating a terminal device (hereinafter referred to as a slave terminal device) having the main terminal device 12 serving as the cutting edge. Information indicating this master-slave relationship can be registered in the terminal management table 3 as definition information when the online information processing system is generated.

Furthermore, in a system in which information indicating a different master-slave relationship in which the slave terminal device of the main terminal device 12 is the terminal device 14 is held in the terminal management table 3 as definition information at the time of online information processing system generation, the system is in operation. Even if the operator instructs the changing means 5 to delete information indicating a master-slave relationship that the slave terminal device of the main terminal device 12 is the terminal device 14, the changing means 5 receiving the instruction deletes the master-slave relationship record. The means 4 is instructed to delete the information. Upon receiving the instruction, the master-slave relationship recording means 4 deletes the information held in the terminal management table 3, and then the operator deletes information indicating the master-slave relationship that the slave terminal device of the master terminal device 12 is the terminal device 13. The change means 5 is instructed to register the . The changing means 5 that received the instruction instructs the master-slave relationship recording means 4 to register the information, and the master-slave relationship recording means 4 that received the instruction registers the information in the terminal management table 3, thereby establishing the master-slave relationship between terminal devices. You can change the information shown. Thereafter, information indicating the master-slave relationship between terminal devices continues to be held on the terminal management table 3 until a change is instructed by the operator again.

It is assumed that the terminal device #12 and the host computer 10 are in a connection relationship, and the connection relationship between the terminal device 13 and the host computer 10 is lost.

Information indicating the connection relationship between the terminal device and the host computer is held in the terminal management table 3, and is updated by the terminal state recording means 6 every time the connection state between the terminal device and the host computer changes.

In this situation, the information processing subsystem 2 notifies the detour means 7 to transmit data to the terminal device 13, and the detour means 7 that has received the notification sends the information about the terminal status stored in the terminal management table 3 to the terminal status recording means 6. An instruction is given to refer to information indicating the connection relationship between the device 13 and the host computer. Upon receiving this instruction, the terminal status recording means 6 refers to the information held in the terminal management table 3 and sends information to the detour means 7 that "the connection relationship between the terminal device 13 and the host computer has been lost". return. The detour means 7 receives the information that "the connection relationship between the terminal device 13 and the host computer is lost" from the terminal status recording means 6, and notifies the selection means 8 to select the main terminal device of the terminal device 13. death,
After receiving the notification, the selection means 8 instructs the master-slave relationship recording means 4 to refer to information indicating the master-slave relationship of the terminal device 13.

Upon receiving this instruction, the master-slave relationship recording means 4 refers to the information indicating the master-slave relationship of the terminal devices 13 held in the terminal management table 3, and reads "The main terminal device of the terminal device 13 is the terminal device 1".
2" is notified to the selection means 8, and upon receiving the notification, the selection means 8 selects the terminal device 12 as the main terminal device of the terminal device 13, and notifies the detour means 8 of the selected terminal device 12. The detour means 8 that received the notification sends the transmitted data to the terminal device! The transmitting means 9 is notified to transmit the data at t12, and upon receiving the notification, the transmitting means 9 transmits the data to the terminal device 12.

〔Effect of the invention〕

As explained above, the present invention has the following effects when transmitting data from an information processing subsystem to a terminal device.

That is, even if the terminal device that is the destination of the data transmission becomes unable to receive the transmitted data, the transmitted data can be output in a detour to the main terminal device, thereby increasing the efficiency of data output.

Further, since the change of the terminal device to be the destination of the transmission due to the detour output of the transmission data is automatically performed, there is no need for operator intervention, and therefore the operation is simple.

Furthermore, since the information indicating the master-slave relationship between terminal devices can be dynamically changed even while the system is running, the combination of terminal devices that perform detour output of transmitted data can also be dynamically changed while the system is running, giving flexibility in the configuration of terminal devices. Can be adapted to.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a flowchart showing the processing of the detour means, FIG. 3 is a flowchart showing the processing of the selection means, and FIG. 4 is a terminal management table. FIG. In Figures 1 to 4,

Claims (1)

[Scope of Claims] In an online information processing system in which data is transmitted from an information processing subsystem operating on a host computer to a terminal device, information indicating a master-slave relationship between the terminal devices and a connection state between the terminal device and the host computer are provided. a terminal management table means for holding information indicating a master-slave relationship between terminal devices; a master-slave relationship recording means for registering, deleting, or referring to the terminal management table means information indicating a master-slave relationship between terminal devices; and a connection between the terminal device and the host computer. Terminal status recording means registers or refers to information indicating a state in the terminal management table means; and information indicating a master-slave relationship between terminal devices held in the terminal management table means is referenced by the master-slave relationship recording means to record data. selection means for selecting a terminal device in a master relationship with the terminal device to which the data is to be transmitted, and a connection state between the terminal device to which the data is to be transmitted held in the terminal management table means and the host computer; The terminal status recording means refers to the information indicated by the terminal status recording means, and when the terminal apparatus is in a state in which data cannot be received, a message is transmitted to a terminal apparatus in a master relationship of the terminal apparatus selected by the selection means. a detour means for notifying the transmitting means of the message; a transmitting means for transmitting a message to a terminal device having a master relationship with the terminal device notified by the detour means; 1. A detour output method for sending data to a terminal, comprising: a change means for dynamically changing information indicating a master-slave relationship between terminal devices, using the master-slave relationship recording means, on a host computer.