JPS62144450A - Line supervisory system - Google Patents

Abstract

PURPOSE:To recognize a line fault in a station office as soon as the line fault takes place by providing a fault supervisory equipment on one line of line groups by routes and a fault alarm equipment on a counter intra-office equipment. CONSTITUTION:A line from a telephone exchange 1 is connected to one line in line groups by routes via a main distribution panel 2. A line group 3 indicates a line group of a route and a line group 4 depicts a line group of another route. The line supervisory equipment 5 is connected to an optional line in the line groups. The line is not connected to the exchange 1 but connected to a fault alarm equipment 6 via the main distribution panel 2. The fault supervisory equipment 5 has a function sensing a fire and a function sensing submersion or the like. If a fire breaks out and it is sensed by the line supervisory equipment 5, a current changes with the fault alarm equipment 6, it is detected to raise an alarm. The current is changed by an open line in case of a fire or by smoke sensing.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a system for monitoring the condition of a line outside a station building within a station building, and particularly to a system for monitoring communication lines such as telephone lines.

Conventional technology Traditionally, for example, when it comes to telephone lines, track monitoring has been done.

Generally, this was carried out by a maintenance person using a test device, or by an automatic test device as appropriate.

Problems to be Solved by the Invention However, with the conventional method, if there is a break in the track, it can be detected when testing is carried out, but with this method, it is possible to detect a break in the track when a test is conducted. On the other hand, it has the disadvantage of lack of immediacy. That is, there is a drawback that it is not possible to detect a disaster at the same time as it occurs.

The present invention has been made in order to eliminate the above-mentioned drawbacks inherent in the conventional technology, and therefore, an object of the present invention is to provide a new railway line that makes it possible to accurately detect the occurrence of a disaster at the same time as it occurs. The objective is to provide a monitoring method.

Means for Solving the Problems In order to achieve the above object, the line monitoring system according to the present invention includes a fault monitoring (detection) device for one line in a line group for each route and an in-office device opposite to the fault monitoring (detection) device. It is configured with a fault warning device, and these devices have a constant monitoring function and can detect the occurrence of a fault at the same time as it occurs.

Embodiment Next, a preferred embodiment of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

In FIG. 7, reference number l indicates a telephone exchange, and a line from the exchange is connected to one line in a line group for each route via a main distribution frame (MDF).

3 indicates a line group on a certain route, and DA indicates a line group on a different route from line group 3. A track monitoring device f! is installed on one of the arbitrary lines within the line group (usually an empty line not connected to an exchange is used). Connect. The line has MDF
It is connected to the fault monitoring device B without connecting to the exchange L via the

FIG. 2 is a diagram showing a specific connection example for connecting these devices.

The fault monitoring device j has a function of detecting fire, a function of detecting flooding, and the like.

Now there is a fire and the track monitoring device! When the lever detects a fire, the current between the lever and the fault alarm device 6 changes, the change is detected by the fault alarm device 6, and a good message to the effect of the fault is generated.

In the case of a fire, changes in the current may result in line breakage or changes due to smoke sensitivity, but the structure is such that the failure alarm device 6 can detect any of these changes.

As described in detail, according to the present invention, by providing a fault warning device and a fault monitoring device inside the station building and outside the station building, when an abnormality occurs on the line, it is immediately detected inside the station building. This has the great effect of being able to quickly take action against the disorder.

[Brief explanation of drawings]

Fig. 1 is a system diagram showing one embodiment of the present invention, and Fig. 2 is a system diagram showing an embodiment of the present invention.
FIG. 2 is a diagram illustrating an example of connection between the inside of the specific station building and equipment outside the station building;

Claims (1)

[Claims] In the track monitoring method that monitors the track condition outside the station building inside the station building, a fault monitoring device is connected to any one line in the line group for each route group, and the station A fault warning device is installed in the station building, and when an abnormality occurs on the track outside the station building, the fault monitoring device is activated, and the fault warning device inside the station building detects the condition and issues an alarm. track monitoring method.