JPS6331348A - Maintenance information transfer system - Google Patents

Abstract

PURPOSE:To prevent maintenance information to be lost, by providing a means which detects a fault between the teletypewriter controller of a remote maintenance telephone exchange, and the teletypewriter of a remote maintenance center, and outputting the maintenance information to the teletypewriter of a current station, at the time of detecting the fault. CONSTITUTION:A teletypewriter 8 sends out a fault monitoring data including a fault reporting data part to a teletypewriter controller 6 cyclically. The teletypewriter controller 6 monitors the reception of the fault monitoring data from the teletypewriter 8 with the sending cycle of the teletypewriter 8, and when no reception of data occurs, or a fault report is received, it informs the generation of the fault to a central control unit 4. The central control unit 4 judges that the output of the maintenance information to the teletypewriter 8 of the remote maintenance center 2 is impossible due to the generation of the fault, and the maintenance information after the generation of the fault is outputted to the teletypewriter 7 of the current station. The maintenance information is outputted also to the teletypewriter 8 of the remote maintenance center on recovering the fault.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a remote maintenance telephone exchange, and more particularly to a maintenance information transfer method when performing maintenance on a remote maintenance telephone exchange office from a remote maintenance center outside a special trap.

(Prior art) Conventionally, in a remote maintenance telephone exchange that has a teletypewriter (TTY) for outputting maintenance information at a remote maintenance center and a remote maintenance telephone exchange office (hereinafter referred to as the "local office"), maintenance information is constantly transmitted to both teletypes. Outputting to a typewriter.

(Problems to be Solved by the Invention) As mentioned above, in conventional remote maintenance telephone exchanges, the teletypewriter at the local office is also used in the same way as the teletypewriter at the maintenance center (because it outputs maintenance information, maintenance Despite remote maintenance from the center, regular maintenance for teletypewriters, replenishment of recording paper, etc. must be carried out.

In order to avoid this periodic maintenance and replenishment of recording paper, 1. When normal remote maintenance is being performed, the output is only sent to the teletypewriter at the maintenance center, and at the discretion of the maintenance person, 1. For example, the maintenance person visits the site. A method is known in which maintenance information is output only to the teletypewriter at the local station. But with this method.

When the line connecting the telephone exchange and the maintenance center's teletypewriter is out of order, a maintenance person can perform maintenance on the teletypewriter at the local office until the line is restored, or if the line connects the telephone exchange and the maintenance center's teletypewriter. There is a problem in that maintenance information is lost during the information output instruction.

(Means for Solving the Problems) The maintenance information transfer method of the present invention includes a central control device, a teletypewriter control device, and a remote maintenance telephone exchange office (current office).
and a teletypewriter at a remote maintenance center, detecting a failure between the teletypewriter control device and the teletypewriter at the remote maintenance center,
When this fault is detected, maintenance information is output to the teletypewriter at the local station.

The central control unit # is an exchange system that includes a function to control the output of maintenance information to the teletypewriter, and a function to output maintenance information to the local teletypewriter based on a fault occurrence report from the teletypewriter control device for the remote maintenance center. It is a connection control device. Further, the teletypewriter control device is a device that has a fault detection function between the teletypewriter control device and the teletypewriter and in the teletypewriter itself, and controls the teletypewriter under control from the central control device. be.

(Example) Next, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. 2(a) and 2(b) are flowcharts of the embodiment of FIG. 1. In FIG. 1, 1 is a remote maintenance telephone exchange office, that is, the current office, 2 is a remote maintenance center, 3 is a communication path device for switching and connecting communication paths, 4 is a central control device, and 5 and 6 are teletypewriter control devices. , 7 and 8 are teletypewriters for outputting maintenance information; 9 and 10t are modems for connecting the teletypewriter control device 6 and the teletypewriter 8 of the remote maintenance center 2;

With this configuration, the teletypewriter 8 periodically sends failure reporting data, for example, every 10 seconds, in order to monitor failures between the teletypewriter control device 6 and the teletypewriter 8 and to report failures in the teletypewriter 8. The fault monitoring data including the part is sent to the teletypewriter control device f6'' IC.

The teletypewriter control device 6 monitors the reception of fault monitoring data from the teletypewriter 8 at the sending cycle of the teletypewriter 8, and even if it is received, it checks whether there is a fault report in the fault reporting data section yc. Confirmed,! If the damage monitoring data is not received or if the failure report is confirmed, the occurrence of the failure is reported to the central control unit 4. The central control unit 4 determines that it is impossible to output maintenance information to the teletypewriter 8 at the remote maintenance center 2 due to lightning, and outputs maintenance information after the failure to the teletypewriter 7 at the local station. Output. When the fault is recovered and the teletypewriter control device 6Yc periodically receives fault monitoring data and there are no more fault reports, the fault recovery is reported to the central control device and the teletypewriter 8 of the remote maintenance center
Maintenance information is also output. The output of maintenance information to the local teletypewriter 7 is stopped by a maintenance person's instruction to stop outputting from the teletypewriter.

(Effects of the Invention) As explained above, the present invention provides a remote maintenance center and a remote maintenance telephone exchange center each having a teletypewriter for outputting maintenance information, A means for detecting a failure between the typewriter control device and the teletypewriter at the remote maintenance center is provided, and the failure detection function is configured to output maintenance information to the teletypewriter at the local station, thereby preventing loss of maintenance information. This also has the effect of reducing regular maintenance of the teletypewriters at the local station.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the maintenance information transfer system according to the present invention, and FIGS. 2(a) and 2(b) are flowcharts of the embodiment of FIG. 1. 1...Remote maintenance 1-talk exchange office (current office), 2...Remote maintenance center, 3...Communication path equipment. 4... Central control device, 5.6... Teletypewriter (TTY) control device, 7
．． 8... Teletypewriter (TTY), 9.10...
・Modeem.

Claims (1)

[Claims] In a maintenance information transfer method for a remote maintenance telephone exchange in which a remote maintenance center and a remote maintenance telephone exchange office each have a teletypewriter for outputting maintenance information, the teletypewriter control device of the remote maintenance telephone exchange and the teletypewriter of the remote maintenance center 1. A maintenance information transfer system, comprising means for detecting a failure between the telephone and the typewriter, and when a failure is detected, maintenance information is output to the teletypewriter of the remote maintenance telephone exchange office.