JPS59189466A - Terminal change-over system - Google Patents

Abstract

PURPOSE:To facilitate change-over of a terminal equipment to other processing system by providing a controlling device that receives a change-over command and changes connection in a switching unit. CONSTITUTION:When a terminal equipment 1 sends out process request J to a processing device A and the connection of the terminal equipment 1 to a processing device B is desired after completion of processing based on the request; change-over request data CB is sent out to the processing device A. On receiving this change-over request CB, a discriminating section 4 of the processing device A starts a change-over controlling task 7. The change-over controlling task 7 checks whether processing by a processing section 5 is completed or not. If the job is completed, a change-over command E arrives at a change-over section 2 through a controlling section 3, and the change-over section 2 is switched to a contact (2). Accordingly, the terminal equipment is connected to the processing device B and the operation in a different processing system is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a terminal switching system for switching the end of a cluster 11 to a processing system of a different series.

(b) Prior art and problems When the number of terminals increases in an online system that connects multiple terminals and terminals to a processing device at a center, a method or methods for increasing the processing capacity of the center as a means of dealing with the increase in the number of terminals. There is a method of distributing processing by dividing it into several processing systems. Like the latter, terminal 61! In a system where terminal boards are distributed and connected to multiple processing systems, for example, in the conventional system where an A-series terminal board wishes to switch connections to a B-series processing system, the connection switching device must be manually switched. Furthermore, this connection switching device has the disadvantage that if it is installed at the center (a place away from the terminals), there are many i, so it is easy to switch.

(C) Purpose of the invention The present invention has been made to solve the above-mentioned drawbacks.
The purpose of this invention is to provide a terminal switching method that facilitates switching of a terminal board to another processing system.

(d) Planting of the invention The present invention connects the first processing system, the second processing system, and the terminal to the first processing system or the mud 2 processing system.

In the system 2 having a switching device connected to the terminal, means for determining a switching request from the terminal module and means for issuing a switching command in response to the switching request are provided in the processing system 2g1 and the second processing system, respectively. and a control means for switching the connection in response to the switching command is provided in the switching device, and the first or second processing system receiving the switching request from the terminal to the other processing system Jealousy, the first machine is the second or the first
This is a terminal switching method characterized by switching between the processing systems of As described above, the present invention is applicable to both terminals A and B.
In a system where two processing systems are connected to each other through a switching device, the processing is done! P system A VC-connected field; when Suezakura wants to switch connection to processing system B, and sends a switching request to the center (the processing device of processing system A), p1
The switching device is capable of automatically switching and connecting the terminal to the processing system B in operation 1 in response to a switching command from the center.

(e) Examples of the invention The present invention will be explained below with reference to the drawings. FIG. 1 is a block diagram illustrating one embodiment of the present invention.

In FIG. 1, a terminal device 1 is connected to a processing device A at a center via connections d and a of a switching section 2. In such a connection, when a processing request (data) J (for example, r/LOG ONJ) is issued from the terminal 1, this processing request J is sent to the determining section 4 via the control section 3. This opens a job in the determining unit 4, starts the processing unit 5 based on the password, mode name, etc. that are subsequently sent, and starts executing the requested data processing. When this process is completed, the processing unit 5 sends a process end signal E (for example, R
ETURN command) is issued to the control unit 3. The control unit 3 sends the job end number JE to the terminal 1, so the display unit 6 of the terminal 1 shows t% of the job end (for example, "/'LOG").
0FFJ> is displayed. In this way, a JOB request from a terminal is processed.

In the above system, when terminal (1) sends a processing request J to processing device A, and after the processing by this processing request is completed, if the terminal (1) wishes to connect to processing & equipment B, a switching request is made. (Data) CB is sent to the processing device A. When the discriminator 4 of the processing device A receives this 9 switching request CB, it starts the switching control task 7. The switching control task
Check whether the processing has been completed. In other words, check to see if the job end signal has been issued (LOGOFF). If the processing is still being completed, wait until the job in progress is completed. On the other hand, if the job is consistent, a switching command E is issued, so this switching command E
reaches the switching section 2 via the control section 3, and is switched to the contact point. Therefore, the terminal device 1 is connected to the processing system BK and can operate in different processing systems.

FIG. 2 is a flowchart showing an overview of the determination section 4, processing section 5, and switching control task 70% I described above.

Note that since the processing device B in FIG. 1 has 46 of the same functions as the processing device A, when switching the terminal 1 from the processing device B to the processing device A, the switching can be performed reversibly using the same procedure 11jλ as described above. can.

(fl Effects of the Invention As described above, when a terminal device desires to switch connection to the processing system of (lb), the terminal device simply issues a switching request to the center to which it is connected, and the switching is automatically performed. It has the advantage of being able to connect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating one implementation of the present invention;
Figure (d) is a flowchart explaining one embodiment of the present invention. The reference numerals used in the figure are as follows. 1 is a terminal, 2 is a switching unit, and 3.30 is a control unit. , 4.40
Turn off the ID determination unit, 5.50 digit processing unit, 6U display unit, and 7.71? Bait control 17, 8 (-r keyboard, A. B is the processing device, CB is the switching request, E is the baby command, J is the processing request. JE is the jog end signal, a and b are the contact points.

Claims (1)

[Claims] In a system having a first processing system, a second processing system, and a switching device that switches and connects a terminal to the first processing system or the second processing system, a switching request from the terminal board is determined. and a means for issuing a switching command in response to the switching request are provided in the first and second processing systems, respectively, and a control means for switching the connection in response to the switching command is provided in the switching device, and the terminal A terminal switching method characterized in that the first or 862 processing system that receives a switching request from the terminal to another processing system switches and connects the terminal to the second or first processing system. .