JPH10310058A - Alarm device for roadway maintenance work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alarm device for roadway maintenance work in which safety of a roadway maintenance worker can be secured at all times. SOLUTION: A sensor 11 detects a train T to output a train detection signal to a controller 12. The controller 12 receives the train detection signal from the sensor 11 to control a signal transmission part 13 to output a train approach information, and the signal transmission part 13 radio transmits radio waves of a specified frequency band as the train approach information. A signal receiving part 22 receives the waves transmitted from a signal transmission antenna 14 through a signal receiving antenna 21 as the train approach information, and it outputs a train approach signal to a controller 23. The controller 23 receives the train approach signal to control an alarm 24 to output specified alarm sound, and the specified alarm sound is outputted from the alarm 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance work alarm device for warning a worker performing a maintenance work of a train approaching.

[0002]

2. Description of the Related Art Conventionally, when performing a track maintenance work, a worker who performs the track maintenance work is notified of the approach of the train by using an alarm device fixedly installed at a railroad crossing or the like, and when the train approaches, the track maintenance work is interrupted. And ensured the safety of workers. In addition, when performing track maintenance work at a location away from the fixed alarm device, a lookout role is set up at a location that is a predetermined distance from the place where the track maintenance work is performed, and the lookout role visually checks the approach of the train and maintains the track. The worker who performed the construction was notified of the approach of the train, and the maintenance of the track maintenance was suspended to ensure the worker's safety.

[0003]

As described above, when the fixedly installed alarm device is used, the work site of the track maintenance work moves as the construction progresses, so that the work site is separated from the fixedly installed alarm device. At the location, workers could not be alerted of the approach of the train, and it was not possible to carry out track maintenance work safely. In addition, even if a guard is used, the track maintenance work is often performed during the train suspension hours from midnight to early morning. Was. In addition, there is a problem that when a signal or voice of a watchman notifies the approach of a train, the noise becomes noise and disturbs nearby residents. Therefore, there is an urgent need to develop an alarm device for track maintenance work that can always ensure the safety of workers in the track maintenance work.

[0004] It is an object of the present invention to provide a maintenance work alarm device capable of always ensuring the safety of a maintenance work worker at any place on a track.

[0005]

A warning device for track maintenance work according to the present invention comprises a portable train detection device movably installed near a track, and a warning device separately installed from the train detection device, The train detection device includes detection means for detecting the approach of a train, and transmission means for transmitting train approach information wirelessly when the detection means detects the approach of the train. Receiving means for receiving the train approach information transmitted by the, and warning means for warning that the train is approaching based on the train approach information received by the receiving means, the warning device, the It is provided integrally with the ear of the helmet worn by the worker.

With the above arrangement, the train detecting device is movably installed near the track, and when the detecting means detects the approach of the train, the transmitting means wirelessly transmits the train approach information to be integrated with the helmet. In the warning device, the warning means can warn that the train is approaching based on the train approach information received by the receiving means, so that the worker can only approach the train by wearing a helmet. It is possible to know directly, and it is possible to always secure the safety of workers in track maintenance work at any place on the track.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration of an alarm device for track maintenance work according to an embodiment of the present invention.

Referring to FIG. 1, an alarm device for track maintenance work includes:
A train detection device 1 and a warning device 2 are included. Train detection device 1
Includes a sensor 11, a controller 12, a transmission unit 13, and a transmission antenna 14. The warning device 2 includes a receiving antenna 2
1, including a receiving unit 22, a controller 23, and an alarm 24.

The train detection device 1 is movably installed near the track L, and the warning device 2 is separated from the train detection device 1 by a predetermined distance. For example, the direction of travel of the train T from the train detection device 1 (see FIG. The warning device 2 is installed at a position separated by several hundred meters to several kilometers ahead (in the direction of the middle arrow), and the line keeping work is performed at that position.

The sensor 11 is located at a predetermined distance from the track L on which the train T runs, detects the train T when the train T approaches, and sends a train detection signal to the controller 12.
Output to The sensor 11 may be any sensor that can detect the approach of the train T without contact. For example, various sensors such as an ultrasonic sensor, an optical sensor, and an infrared sensor can be used. Any of the sensors can be used.

When receiving a train detection signal from the sensor 11, the controller 12 controls the transmitting unit 13 to output train approach information. The transmission unit 13 includes the controller 12
And transmits a radio wave of a predetermined frequency band via the transmitting antenna 14 as train approach information by radio. Here, as the radio waves in the predetermined frequency band, radio waves in any frequency band can be used as long as they are radio waves in a frequency band that does not hinder other communication. Although the power supply of the train detection device 1 is not particularly shown in FIG. 1, a rechargeable storage battery is provided inside the device. The same applies to the power supply of the warning device 2.

The sensor 11, the controller 12, the transmitting section 13, and the transmitting antenna 14 are integrally formed inside the train detecting device 1. The train detecting device 1 is a portable device that can be carried by a worker by hand. Yes, it can be easily installed at any place near the line L.

Next, the receiving section 22 receives the radio wave transmitted from the transmitting antenna 14 via the receiving antenna 21 as train approach information, and outputs a train approach signal to the controller 22. Upon receiving the train approach signal, the controller 23 controls the alarm 24 so as to output a predetermined alarm sound, and the alarm 24 outputs a predetermined alarm sound. Here, as the alarm sound, for example, a voice of “train approach, emergency evacuation” recorded in the alarm 24 in advance is 2, 3
Repeat several times. In this case, specific contents are presented to the worker by voice, and the approach of the train can be more reliably transmitted, so that the worker's safety can be more reliably ensured. Note that the sound to be output as the alarm sound may be another sound or a mechanical sound such as an electronic sound as long as the sound can notify the approach of the train. Further, as a warning sound confirming means, a confirmation button may be attached to the warning device, and the warning sound may be continuously output until the operator presses the confirmation button. In this case, the worker can safely perform the work without missing the alarm sound. Further, when a plurality of workers wear the warning device, the warning sound may be continued until all the members press the confirmation button. In this case, the safety of all the workers can be more reliably ensured.

By the above operation, when the train approaches,
In addition to being able to automatically emit an alarm sound, the train detection device 1 can be installed at any place in a movable state, so that the safety of the maintenance work worker is always ensured at any place on the track. be able to.

[0015] For example, since the amount of movement per day of track maintenance work such as replacement of sleepers is about 50 to 100 m,
Once the train detection device 1 is installed at a predetermined place, the work can be safely performed while being fixed during the construction of a day.

Next, the above warning device will be described in more detail. FIG. 2 is an external view showing the external appearance of the warning device shown in FIG.

Referring to FIG. 2, a warning device 2 including a receiving unit 22, a controller 23, and an alarm 24 is integrally provided at the ear of the helmet 3, and the worker wears the helmet 3. In such a case, the part that generates the sound of the alarm is in contact with the ear part of the worker.
Above the ear of the helmet 3, the receiving antenna 2
1 is provided.

According to the above configuration, the warning sound can be transmitted directly to the ear of the worker, so that the worker can safely carry out the maintenance work without missing the warning sound. In the case of a plurality of workers, one worker may wear the helmet 3 and warn the other workers of the approach of the train. May go.

In the above-described embodiment, the case where the track is a single track has been described. However, when the track is a double track, a train detecting device is installed on each track, and one of the plurality of train detecting devices receives a train detecting device. If a warning sound is generated by the warning device when the train approach information is received, it is possible to always ensure the safety of the worker of the track maintenance work at any place on the track as described above.

[0020]

According to the present invention, the approach of a train is automatically detected by the train detection device movably installed near the track, and the train is approached by the warning device integrated with the helmet. The worker can be informed of the approach of the train simply by wearing a helmet, so that the worker of the track maintenance work can always be secured anywhere on the track. it can.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an alarm device for track maintenance work according to an embodiment of the present invention.

FIG. 2 is an external view showing an external appearance of the warning device shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Train detecting device 2 Warning device 11 Sensor 12 Controller 13 Transmitting unit 14 Transmitting antenna 21 Receiving antenna 22 Receiving unit 23 Controller 24 Alarm

Claims (1)

[Claims] 1. A portable train detection device movably installed near a track, and a warning device separately installed from the train detection device, wherein the train detection device detects a train approaching. And a transmitting unit that wirelessly transmits train approach information when the detecting unit detects the approach of the train, wherein the warning device receives the train approach information wirelessly transmitted by the transmitting unit. And warning means for warning that a train is approaching based on the train approach information received by the receiving means, wherein the warning device is integrated with an ear of a helmet worn by a worker of a track maintenance work. An alarm device for track maintenance work, wherein the alarm device is installed in a railway line.