JPS61236250A - Method for incorporating line correspondence equipment into on-line system - Google Patents

Abstract

PURPOSE:To make it possible to transfer to on-line state from any other kind of state when a data arrives, by providing a means to detect the existence or absence of the data sent from common control circuit. CONSTITUTION:During off-line state, a center C sends an on-line processing program through communication control device, common control circuit 2, line correspondence equipment (LCE).0, and microprocessor muCPU. When the program stored in the muCPU receives the specific code giver at the head of the on-line processing program, the muCPU program reads the following program and the muCPU executes the program. Namely, LCE.0 is used for off-line processing while the center C is not working, and even when an operator forgets to return it to on-line state, it can be automatically incorporated into on-line system when the center starts servicing. At the same time, the programs in LCE.0 or LCE.1 which are installed separately can be revised altogether from the center C.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention is directed to the Videotex system (CAPTAIN).
) etc., and to explain in more detail, it is possible to move a line compatible device that has been used in an offline state to an online state by instructions from an information processing center (hereinafter simply referred to as the center). This paper relates to an online system integration method for line-compatible devices.

Background of the Invention] Conventional loading of an initial program (hereinafter referred to as IPL) in a central processing unit (CPU) is described, for example, in "D10 Automatic Exchange Part 6, Central Processing System," published by the Telecommunications Mutual Aid Association, a foundation. As described in Section 4 of page 235 of the ``Program Files'', there is a method for executing a program stored in non-volatile memory after it has been transferred to volatile memory by button operation. However, several line compatible equipment (LCE) made using this method were installed in the central processing unit (CP).
When attempting to operate from U) via a communication line, several line compatible devices (LCE
) is a state in which the central processing unit can be controlled at any time (
(need to be online).

As a result, line-enabled devices rarely have the disadvantage that they cannot be used for other functional operations (for example, to perform tasks such as diagnosis and testing while offline). In addition, changing the program of a line-compatible device involves copying the master program to the center (C), going to the distributed installation site, and storing the copy in non-volatile memory, which is extremely inefficient. Rarely.

(Objective of the Invention J) The present invention has been made in view of the problems in the prior art described above. Point 1 to improve workability.

[Summary of the invention]

A feature of the present invention is that a dedicated communication line (hereinafter referred to as a common control line) is provided between the distributed line compatible devices and the center to control program transfer and communication lines. By providing a means for detecting the presence or absence of a 1-day signal coming from the common control line even when the microprocessor, which is a component of the device, is in an off-line state, it is possible to detect 6 times in any state when a take arrives. Ruru is also able to automatically transition to online status.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. FIG. 1 is a relay system diagram of the Videotex system, and FIG. 2 is a circuit configuration diagram of a line compatible device which is the main part of the present invention. In addition, Fig. 3 shows a flowchart of the program in the line compatible device. In Fig. 1, C indicates an information processing center, which includes communication control units CCE-0 and CCE-1, and a central processing unit cp.
It consists of u. To, TI are terminals, EX-0, EX-1
is an exchange, LCE-0 and LCE-1 are line compatible devices,
The configuration is as shown in FIG. Further, 1'' indicates a communication line, and 2 indicates a common control line.

As shown in Fig. 1, center C and line compatible equipment LCE/
0 and LDE・1 are connected by multiple (for example, 48) communication lines 1 and one common control line 2. For example, by collaborating through
Terminal TO detects a connection request to center C sent via exchange EX-0 and communication port [1, and connects it to communication port HA.
1 to the communication control device CCE-0, or by the central processing unit CPU controlling the line-compatible device LCE-1 via the communication control device CCE-1 and the common control line 2, the line-compatible device LCE-1 controls the exchange EX-1 via the communication line 1, and connects the terminal T1 and the communication control device CCE-1.
I have configured it so that I can connect it.

Further, FIG. 2 shows the line compatible device LDE-0 according to the present invention.
This is a detailed diagram of the trunks TRK-0 to TRK-L used to connect exchange EX-0 and center C, and the common trunks connected to center C. Control line 2 or operator O
A microprocessor μCPU that can control the keyboard printer KBP for conversation with P, and a 70g off-2een processor stored in that processor.
It consists of a switch R for starting the programs 100 to 102) shown in FIG.

Furthermore, FIG. 5 shows the microprocessor μC shown in FIG.
FIG. 2 is a program configuration diagram for explaining an example of a program stored in a PU.

1 to 3, the operation of the multi-line system built-in system of the line compatible device will be explained.

First, the line compatible device LCE-0 goes offline, and while talking with the operator OP, detects an incoming call from, for example, the exchange EX.
An example of the operation when displaying the incoming call status on the BP will be explained with reference to FIG. That is, when the operator OP operates the switch R, the earth-switch R-microprocessor,
An interrupt is applied to the microprocessor μCPU via the μCPU path, and the microprocessor μCPU recognizes that there is an instruction to shift to the offline state and starts executing the offline program 101 shown in FIG.

The offline program 101 has a conversation function with the operator OP, and when a call is rarely received from the exchange EX. Since it has the function of printing to the keyboard printer via the μCPU-keyboard printer KBP path, for example, if the terminal TO receives a call via the exchange EX/0, the operator OP will respond to the incoming call. You can set up the communication line 1 using
(See 02).

Meanwhile, during the offline state, the center C
CE・〇-Common control 2-Line compatible device LCE・0-Line compatible device LCE via the microprocessor μCPU route
・The program 201 for online processing of 0 is transferred. The program 102 stored in the microprocessor μCPU has a specific code (for example, an ASCII code 'SOT' code) added to the beginning of the program.
When received, the program 200 receives the following online program, and the microprocessor μCPU executes it.

In other words, even if the line-enabled device LCE-0 is used for offline work while Center C is out of service and is forgotten to return to the online state, it can be automatically incorporated into the online system when Center C's service starts, and it can also be distributed. Installed line compatible device LCE・0 (or LCE・1
) programs can be changed all at once from center C.

〔Effect of the invention〕

As is clear from the embodiments described above, according to the present invention, the line compatible device can be used for other purposes while the system is out of service, and the line compatible device can be automatically installed (incorporated into the online system) when the center service starts. In addition, the workability of changing online programs is good, and there are advantages such as the ability to easily and simultaneously change the programs of line-compatible devices from the center.

[Brief explanation of the drawing]

The attached drawings are for explaining one embodiment of the present invention; Fig. 1 is a relay system diagram of the Videotex system, and Fig.
The figure is a circuit diagram of the line compatible device, and FIG. 3 is a rarrow chart of the program in the line compatible device. 1...Communication line, 2...Common control line, C
...Center, CCE-0, CCE-1...Communication control device, CPU...Central processing unit,

Claims (1)

[Claims] A dedicated communication line is provided between the distributed line-compatible devices and the information processing center to control program transfer and communication lines, and even if the line-compatible devices are offline, incoming data is transmitted via the communication line. A means for detecting the presence or absence of data is installed, and the line-compatible equipment, which is normally offline and performs self-diagnosis and testing through operator operations, receives an online system installation instruction from the information processing center and the data sent after that. 1. A system for incorporating an online system into a line-compatible device, characterized in that, by means of receiving and executing an online processing program, the online state can be automatically moved from an offline state to an online state according to the received program.