JPH0148961B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for monitoring abnormalities in tracks of railways, roads, etc. using optical fiber lines.

When track abnormalities such as bent rails, crumbling rubble, or missing road surfaces occur in mountainous areas on railways or roads, there have been cases where constant monitoring has been difficult, leading to major accidents. If this can be constantly monitored, and if an abnormality occurs, an alarm can be sounded in front of the area, and information on the occurrence of an abnormality can be immediately transmitted to the core of the transportation system, it will be possible to prevent accidents and quickly recover.

Therefore, an object of the present invention is to provide a device for monitoring such orbit abnormalities.

Track abnormality detection and generation and transmission of abnormality information by the track abnormality monitoring device of the present invention are performed using optical fiber wires configured in series. It generates an alarm. To this end, the present invention uses optical fiber lines for detecting track abnormalities, optical fiber lines for information transmission, photoelectric converters, abnormal signal transmission lines, signal control devices, traffic lights, and the like.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the abnormality detection unit 10 is installed in a place where it is necessary to monitor abnormalities on tracks (not shown) of railways, roads, etc. It consists of one abnormality detection optical fiber wire 12 which is wound around the abnormality detection optical fiber wire 11 in a multi-core manner, and an outer skin tube 14 to which a cutter 13 that comes into contact with this abnormality detection optical fiber wire 12 is attached.

The abnormality detection optical fiber line 12 connects to the abnormality information generation/transmission unit 2 installed in a location not affected by abnormalities.
0 as the information transmission optical fiber line 12A, and therefore the abnormality detection optical fiber line 12 and the information transmission optical fiber line 12A are integrated.
The abnormality information generation/transmission section 20 includes a photoelectric converter 23 consisting of a light emitter 21 and a light receiver 22 connected to each end of the optical fiber line 12A for information transmission, and the light generated by the light emitter 21 is transmitted through the optical fiber. The light is detected by a light receiver 22 through the wire.

With this configuration, when an abnormality occurs, that is, when the road surface deforms, the abnormality detection optical fiber wire 12
The shape of the cutter 13 changes and the center inclusion 11
The optical fiber wire 12 for abnormality detection may be broken by being pressed by the light emitting device 21 in the photoelectric converter 23.
It is detected that a loss has occurred in the transmission of light from the optical receiver 22 to the optical receiver 22, and thereby, abnormality occurrence information is generated.

A signal representing abnormality occurrence information generated by the light receiver 22 is transmitted to a traffic light control device 25 via an abnormality signal transmission line 24. This traffic light control device 25
receives this signal and provides an alarm output to the traffic light 26.

Further, abnormality occurrence information can also be transmitted to a central monitoring room (not shown), which is the core of the transportation system. That is, as shown in FIG. 4, the abnormality detection unit 10 is fixed with a metal fitting 15 at a place where abnormality needs to be monitored, and the abnormality signal transmission line 24 is connected not only to the signal control device 25 but also to the central monitoring room. Ru.

The device of the present invention can be applied not only to abnormality detection on transport routes but also to all deformations of structures by changing the scale.

The basic method of this invention is intended to destroy a part of the signal transmission line immediately in response to changes in the external environment, and the abnormality detection section and the optical fiber line for information transmission as the signal transmission line are integrated. It is distinctive in that it is When configuring this circuit, it is possible to use electric wires, but considering that the installation location is out of reach of monitoring, it will not malfunction due to electromagnetic noise (lightning, vehicles, etc.) and will not deteriorate over time. Another feature is the use of optical fibers.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of the anomaly detection section, Fig. 2 is a longitudinal sectional view of the anomaly detection section, Fig. 3 is a partial block diagram of the track anomaly monitoring device of the present invention, and Fig. 4 is a track diagram. It is a schematic diagram showing an example of application of an abnormality monitoring device. 10 is an abnormality detection unit, 11 is a central inclusion, 12 is an optical fiber line for abnormality detection, 12A is an optical fiber line for information transmission, 13 is a cutter, 14 is a skin tube, 20 is an abnormality information generation/transmission unit, and 21 is an optical fiber line for information transmission. 22 is a light receiver, 23 is a photoelectric converter, 24 is an abnormal signal transmission line, 25 is a traffic light control device, and 26 is a traffic light. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] 1. It is installed in a place where it is necessary to monitor abnormalities in a track or structure, has a central inclusion, and is wound around the central inclusion in a multi-core manner, but only one abnormality can be detected. an anomaly detection unit consisting of an optical fiber line for use in the abnormality detection, and an outer sheath tube to which a cutter is attached that comes into contact with the optical fiber line for anomaly detection; and an optical fiber for information transmission that extends from the optical fiber line for anomaly detection and is integrated therewith. an abnormality information generation/transmission unit including a photoelectric converter including a light emitter and a light receiver installed at a location not affected by the abnormality and connected to each end of the information transmission optical fiber line, respectively; When the abnormality occurs, the cutter is pressed against the central inclusion and breaks the abnormality detection optical fiber line, or there is a loss in the transmission of light that has passed through the abnormality detection optical fiber line. A track anomaly monitoring device using optical fiber that detects the occurrence of abnormalities and generates information on the occurrence of anomalies. 2. The abnormality information generation/transmission unit includes a traffic light control device that is connected to a light receiver and receives a signal representing abnormality occurrence information, and a traffic light to which an alarm output is given from the traffic light control device. monitoring equipment. 3. The track abnormality monitoring device according to claim 2, wherein the abnormality occurrence information is also provided to the central monitoring room of the transportation system.