JPH04182727A - Crt screen changeover system - Google Patents

Abstract

PURPOSE:To enable the changeover of a CRT screen to a computer in charge without paying particular attention to it by confirming a CRT connected to the computer in charge by means of connection management information and changing over the CRT screen with a switching means so that the screen of a prescribed operation can be displayed. CONSTITUTION:Management information 8 indication the correspondence between operation and applicable computers in charge 1(a) and 1b, connection management information 9a and 9b managing the connection correspondence among CRTs 4a and 4b concerned and the computers in charge 1(a) and 1b, and a CRT connection switching devices 7a and 7b which perform logical changeover of the connection of the CRT 4a and 4B based on the connection management information 9a and 9b are provided. When an operation is selected through the CRT, by which computer the prescribed operation is executed is determined by means of the management information of the operation and the computers 1(a) and 1b, to which of the computer 1(a) and 1b the CRTs 4a and 4b concerned are currenly connected is confirmed, and when the CRTs 4a and 4b are concerned are not connected to the computers 1(a) and 1b for the prescribed operation, the CRT connection switching devices 7a and 7b which performs logical changeover of the connection of the applicable CRT connects the prescribed operation to the computers in charge 1(a) and 1b. Thus, the screen of the prescribed operation can be obtained without paying particular attention to the CRTs and the computers.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a switching method for selecting a computer connected to a plurality of CRTs depending on the job (work), and particularly relates to a switching method for selecting a computer connected to a plurality of CRTs according to a task, and in particular to a CRT that switches to a computer in charge without being aware of it. Regarding screen switching method.

[Conventional technology]

In the conventional CRT screen switching method, the Ilo switching method is known, and as shown in FIG. , the business (work) program group 5a□-5an of the computer 1a, and the business (past) program group 5b1-5b of the computer 1b.
m, Ilo (CRT) 4a, 4b and calculators 1a, l
Management information 6a, 6b that manages the connection with b, and CR
CRT connection switching device for switching T connections! (Switching means) It is constituted by 7a and 7b. Currently, C
RT4a is connected to computer 1a, and CRT4b is connected to computer 1b.

In other words, with CRT4a, computer 1a's work 5a - 5an
The screen of operations 5b to 5bm of the computer 1b can be viewed on the CRT 4b. In order to view the business screen of the computer 1b on the CRT 4a, it is necessary to disconnect the CRT 4a from the computer 1a using the CRT connection switching device 7a and connect it to the computer 1b using the CRT connection switching device 7b.

FIG. 6 shows details of management information 6a and 6b that manage the connection status of Ilo (CRT) 4a and 4b.
The connection switching devices 7a and 7b perform maintenance of the connection state.

In the conventional technology, the operator inputs the management information 6a,
I/O (CRT) by 6b 4a, 4
There was a troublesome problem in that the user had to be aware of the connection state of computer b and which computer the CRT was connected to when connecting the CRT and selecting the work screen.

In addition, an autonomous distributed system can be mentioned as a conventional technology because the operator does not have to check (be aware of) the computers connected to it, but in an autonomous distributed system, necessary information, There was a problem in that the load on the network became high because information was transmitted regardless of unnecessary information and only the information necessary for business was acquired.

[Problem to be solved by the invention]

The conventional CRT screen switching method does not take into account the fact that tasks for multiple computers are performed on a common CRT, and it is difficult to consider the CRT and computers connected to each task. Therefore, there was a problem in that the CRT connection had to be switched.

Further, in conventional autonomous decentralized systems, no consideration was given to the amount of network traffic, and there was a problem with the load on the network.

An object of the present invention is to provide a CRT screen switching method that can provide a predetermined work screen to an operator without being aware of the connected CRT and computer, and can minimize the communication load on the network. It is about providing.

[Means to solve the problem]

In order to achieve the above object, the CRT screen switching method according to the present invention switches the connections between multiple CRTs and multiple computers based on management information. Management information for managing responses, computers in charge, and their respective CRTs
We have provided connection management information for managing the connection with the CRT and a switching means for logically switching each CRT to the computer in charge. The CRT is determined from the management information, and the CRT to which the computer in charge is connected is confirmed based on the connection management information, and the switching means switches the CRT to the computer in charge to display a screen for a predetermined task.

The connection management information is configured to be modified in accordance with the connection between any one of the relevant CRTs and the computer.

[Effect]

According to the CRT screen switching method of the present invention, the management information indicating the correspondence between the task and the computer in charge, and the corresponding CR
It is equipped with connection management information that manages which computer the T is connected to, and a CRT connection switching device (switching means) that logically switches the CRT connection based on the connection management information. When you select a job), the management information of the job and the computer in charge determines which computer will perform the given job, and the corresponding CR
Check which computer T is currently connected to, and select the corresponding C
If the RT is not connected to a computer for a predetermined task, a CRT connection switching device that logically switches the connection of the CRT in question connects the computer for the predetermined task to the computer in charge. Furthermore, if the predetermined task is connected to the computer in charge, the screen of the predetermined task is displayed as is. Since the relevant CRT and the computer in charge are uniquely determined, network communication information is transmitted with a minimum amount of communication.

Furthermore, the screen for a predetermined task is displayed on the CRT without the operator being aware of the connection between the CRT and the computer in charge.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 3.

As shown in FIG. 1, computers 1a, lb, databases 2a, 2b, network 3, CRTs 4a, 4b equipped with keyboards, business (work) program groups 5ai to 5an of computer 1a, and computer 1b's Business (work)
Program groups 5b□ to 5bm, a CRT connection switching device (switching means) 7a that logically switches the CRT,
7b, management information 8 that manages the correspondence between tasks (tasks) and computers in charge, and connection management information 9a and 9b that manages which computer the corresponding CRT is connected to. Connection management information 9a, 9b
, switching means 7a.

7b is configured to switch the connection between CRTs 4a and 4b. Although the computers 1a and 1b share the work, they are closely related, so they are connected through the network 3 and are in charge of the work.

FIG. 2 shows the management information 8 for the business (work) and the computer in charge, and FIG. 3 shows the connection management information for managing which computer the CRT is connected to.

FIG. 2 is a list of management information, in which correspondence between business names, business contents, and computers in charge is managed.

This allows the computer in charge of a given task to be determined from the task name.

FIG. 3 shows connection management information for managing which computer each CRT is currently connected to.
It can be seen that 4a is connected to the computer 1a, and the CRT 4b is connected to the computer 1b.

FIG. 4 shows a flowchart of the switching procedure.

An example of displaying the screen 5b3, which is the business (predetermined business) of the computer 1b, on the CRT 4a currently connected to the computer 1a will be described with reference to FIG.

In step A, 5b3, which is the business of the computer 1b, is input from the CRT 4a. In step B, the table is searched to see if the input task is included in the management information. As shown in FIG. 2, job 5b is assigned to Nα3.

This shows that the computer in charge is 1b.

In step C, the connection management information 9a, 9b shown in FIG. 3 is referred to to determine which computer the corresponding CRT is connected to. Since CRT 4a is connected to computer 1a,
In step D, the CRT 4a is connected to the computer 1b using the logical CRT connection switching device, and the connection management information is also modified, ie, "connected to the computer 1b". In step E, the program of the business 5b3 of the computer 1b is started and a screen is displayed. Furthermore, if the CRT 4a is connected to the computer 1b, the process moves from step C to E.
The program of the task 5b3 is started without changing the connection, and the screen is displayed.

According to this embodiment, the operation for displaying the tasks (tasks) of other computers only requires inputting the tasks, and the conventional operations are: ■ disconnecting the relevant CRT, ■ connecting the relevant CRT to the computer in charge.
■Compared to inputting business information, only one operation is required instead of three, which improves operability, prevents erroneous operations, and improves reliability.

Furthermore, since the relevant CRT and the computer in charge are uniquely determined, communication information on the network can be transmitted with a minimum amount of communication, so that the load on the network can be kept low.

In addition, the management information is registered at the time of screen program registration, and the management information is also registered at the same time as a screen is added or deleted, thereby improving the expandability and maintainability of the management information.

According to the present invention, the operation of disconnecting and connecting a CRT can be performed in 1/1
It can be simplified to 3. Furthermore, since there is no need to be aware of which computer the CRT is connected to, operability is improved, erroneous operations can be prevented, and reliability is improved.

Furthermore, since the responsible computer corresponding to the CRT is uniquely determined, the amount of network transmission can be minimized.

〔Effect of the invention〕

According to the CRT screen switching method of the present invention, the operability of the computing system is improved and reliability is improved, and the amount of network communication can be minimized.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of the present invention, FIG. 2 is a diagram explaining management information of the present invention, FIG. 3 is a diagram explaining connection management information of the present invention, and FIG. 4 is a diagram illustrating connection management information of the present invention. Block diagram of 5th
The figure shows a conventional technique, and FIG. 6 is a diagram explaining conventional management information. la, lb...computer, 2a, 2b...database, 3...network, 4a, 4b-CR
T, 7a, 7b...CRT connection switching device! (switching means), 8...management information, 9a, 9b...connection management information.

Claims (1)

[Scope of Claims] 1. In a CRT screen switching method in which connections between multiple CRTs and multiple computers are switched using management information, each CRT has management information for managing the correspondence between tasks and computers in charge, and Connection management information that manages the connection between the computer and each CRT, and logically connects each CRT.
and switching means for switching the computer to the responsible computer,
When inputting a prescribed task from any one of the applicable CRTs,
A computer in charge corresponding to the predetermined task is determined based on the management information, a CRT to which the computer in charge is connected is confirmed based on the connection management information, and the switching means switches the corresponding CRT to the computer in charge and performs the specified task. A CRT screen switching method characterized by displaying business screens. 2. The CRT screen switching method according to claim 1, wherein the connection management information is modified in accordance with the connection between any one of the relevant CRTs and the computer.