KR20190015868A - Response System For a Fall From Railroad Platform - Google Patents

Abstract

The present invention relates to a system for responding accident of falling from railroad platform to prevent a collision with a train by detecting an obstacle in a railway portion by using a sensor provided in a train itself. To this end, the present invention comprises: a sensor (10) installed on a front portion of a train (50) for sensing a presence or absence of an obstacle (60) and measuring a distance to the obstacle (60) by detecting a reflected wave reflected from the obstacle (60) of a line portion after emitting a radio wave or laser to an upper side of the line portion; and a computer for trains (20) including a risk detection unit (21) for determining a risk of collision according to the distance to the obstacle (60) and transmitting a warning signal to an engineer and a speed control unit (22) for forcibly reducing a speed of the train (50) or stopping the train (50) when the risk of collision becomes high.

Description

[0001] The present invention relates to a response system for a railway platform crash incident,

[0001] The present invention relates to a system for responding to a railroad platform crash, which can reduce traumatic injury by stopping a train when a passenger falls on a railroad track, The present invention relates to a system for responding to a crash on a railway platform, which can promptly respond to an obstacle on a railway line and prevent a large-scale accident.

Typically, the platform of the train or subway is installed close to the track for smooth boarding of the passengers.

As a result, accidents involving anemia, blindness, drunken passengers, etc., collide with trains entering the railway line at times.

There is also an accident that the passengers directly to the railway line to the train entering the railway line.

In this way, when a passenger falls or fires on the railroad, another passenger who recognizes the passenger pushes the emergency stop switch installed in the landing area so that the signal lamp installed at the entrance of the landing is lit.

This stops trains from entering the platform and rescues the passengers who fell or invested.

However, according to the above-described conventional method, it takes a considerable amount of time until the detector recognizes that the passenger is falling or throwing the vehicle and presses the emergency stop switch to block entry of the train.

Particularly, since the passengers' traffic occurs when the train is close to the platform, it is almost impossible to rescue the trustee according to the above method.

Therefore, in recent years, in the case of subway or train, a screen door is installed so as to prevent a passenger from falling down or transporting to the railway section by separating the platform and the railway section.

However, due to problems such as installation cost, screen door is not installed in all stations yet.

Accordingly, in the station where the screen door is not installed, security personnel are placed or a camera is used to monitor the vicinity of the line in order to rescue the passengers who fall on the line section or send the traffic.

Not only are there not enough security personnel deployed, but there is a limit to where security personnel can continue to identify all parts of the platform.

In addition, when an image of a platform is visually checked using a camera and a monitor, there is a problem in that it is not possible to quickly cope with an unexpected situation occurring momentarily.

Also, even in the case of a station where a screen door is installed, a screen door may not operate normally or a passenger may forcibly open the screen door to cause a fall accident, and a train enters the platform during the maintenance of the screen door, It is also said.

In recent years, as a railroad platform safety system, an infrared camera, a Doppler sensor, and a motion capture are installed on a platform to monitor the status of a platform in real time, and a signal of a camera, a sensor, , An alarm signal is generated in the event of an unexpected event, and an alarm signal is transmitted to the control center or the situation room to send an emergency signal to the train of the vehicle running along the track in the control center or the situation room, or the traffic light I'm using a way to make sure.

However, such a platform safety system is required to propagate the emergency signal to the train only after confirming the situation of the platform, so that it takes time until the train crew copes and it is difficult to prevent accidents when the crew is inexperienced .

Meanwhile, as a result of investigation of the prior art related to the present invention, a large number of patent documents have been searched and some of them will be described as follows.

Patent Document 1 proposes a thermal imaging camera that photographs an object with no heat and an object with heat in different colors while keeping a platform as a monitoring area; An entrance detection sensor which disables the function of the alarm generating unit when the electric motor vehicle is located at one side of the entrance of the platform and the electric motor vehicle passes, and an entrance detection sensor which is located at one side of the exit of the platform, and an advance detection sensor for enabling the vehicle to travel; A thermal sensitivity adjusting section for adjusting an image sensitivity of an object to be imaged by the thermal imaging camera; a thermal sensing section and a thermal sensing section in the image captured by the thermal imaging camera; And an image analyzing unit for detecting an unexpected situation through an average pixel difference of a portion where a person is present in the track area, Of the present invention.

Patent Document 2 discloses a method of monitoring a landing monitoring area by acquiring an image for a landing monitoring area from a plurality of stereo video cameras; Obtaining statistical data for each pixel of the image for the obtained monitoring area; Determining whether another object appears in the monitoring area, and comparing the already-analyzed background image with the background image to separate the actual object and the background; And estimating the size and the volume of the object using pixels corresponding to the separated object. In order to improve the performance of the object recognition by expressing the area and the object to be monitored using the stereo video camera, A subway platform monitoring system using a stereoscopic video camera, which is capable of stopping an incoming train in conjunction with a signaling system of a subway station and promptly responding thereto.

Patent Document 3 discloses a stereo camera for acquiring image information on a monitoring area including a train area where a train enters; An infrared camera for acquiring thermal image information for the monitoring area; A falling object detecting module that detects a falling object within a dangerous area that is set in advance as an area in which an object falls in a train area and can interfere with normal train operation based on at least one of image information and thermal image information; And a dangerous object determination module that determines whether a falling object is a dangerous object that interferes with normal train operation based on the image information and the thermal image information when a falling object is detected in the dangerous area by the falling object detection module, Discloses a landing monitoring system and a method thereof using a stereo camera and a thermal imaging camera, which can improve the reliability of the entire system by minimizing a judgment error of a dangerous object while allowing quick determination of a dangerous object.

Patent Document 4 discloses a Doppler sensor that includes a Doppler sensor that receives a microwave reflected from a microwave and compares the frequency with a frequency, a gateway that wirelessly connects with the Doppler sensor and identifies an ID of the Doppler sensor, An emergency signal broadcasting device connected wirelessly with the gateway, an emergency signal receiving device wirelessly connected to the emergency signal broadcasting device, and an emergency signal receiving device connected to the outside room monitoring device and the outside And a train computer connected to an ATS (Automatic Train Stop) system for automatically stopping the train with the central control computer, and detects a fall in a relatively wide area Which can exclude the sensation by normal passengers, A crash response system for a platform.

KR 10-0661263 B1 KR 10-2007-0065480 A KR 10-2010-0010734 A KR 10-1211676 B1

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and it is an object of the present invention to make it possible to directly ascertain whether a passenger is present on a railway line It has its purpose.

Another object of the present invention is to prevent collision with a train as much as possible even when a passenger is guiding the railroad section.

According to an aspect of the present invention, there is provided a method of detecting an obstacle by detecting a reflected wave reflected from an obstacle of a railway by detecting a radar or a laser beam on an upper side of a railway, A sensor for measuring; And a computer for a train having a risk detector for determining a risk of collision according to a distance from an obstacle and transmitting a warning signal to an engineer, and a speed controller for forcibly reducing the speed of the train or stopping the train when the risk of collision becomes high .

The train computer may further include a signal transmitter for transmitting the danger signal determined by the risk detector to a situation room or a stationhouse.

Further, the train computer is divided into a safety stage, a warning stage to warn the engineer, a danger stage to slow down the speed of the train, and a collision stage to stop the train depending on the distance from the obstacle.

Further, the above-mentioned train computer is characterized in that a signal is transmitted to a situation room or a station room in a case of a danger level or more.

Further, the train computer is characterized in that the collision risk is determined only when the size of the obstacle detected by the sensor is greater than a predetermined level.

In addition, the sensor is made up of a light ray (Lidar) or a laser sensor (Laser Seonsor), and is operated only when the train approaches within a certain distance from the landing platform.

Further, a camera is further provided on the front portion of the train.

According to the present invention, the presence or absence of an obstacle on a railway portion is determined by using a light radar or a laser sensor installed on a front portion of a train, and the distance to the obstacle is detected and transmitted to a train computer The train computer judges the risk of collision and transmits it to the engineer. Therefore, when a passenger falls or a traffic accident occurs, it is possible to minimize the collision of the passenger with the train through quick action.

In addition, if there is a risk of collision with an obstacle, it is also possible to prevent the subsequent accident by spreading it to the office or the situation room.

Also, since the collision risk is determined only for obstacles having a predetermined size or more, it is possible to prevent confusion caused by stopping the vehicle due to small creatures or objects.

In addition, since the sensor is operated only when the train approaches within a predetermined distance from the platform, the energy consumption required to operate the sensor is reduced.

In addition, since the trains are controlled by sensing obstacles in the railway section, it is possible to prevent a collision between the trains, and to cope with a fall or a traffic accident in an area other than the landing area.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram schematically showing a landing platform provided with a railway platform crash response system according to the present invention; FIG.
2 is a block diagram of a railway platform crash response system according to the present invention;
3 is a flowchart of an incident response process using a railroad platform crash incident response system according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a railway landing court fall incident response system according to the present invention will be described with reference to the accompanying drawings.

1 and 2, the railway platform crash response system according to the present invention is installed in a front portion of a train 50, and emits a light ray radar or laser to the upper side of the railroad section, A sensor 10 for sensing the presence of the obstacle 60 and measuring the distance to the obstacle 60 by sensing reflected waves reflected from the obstacle 60; A speed detector (21) for judging a collision risk according to the distance from the obstacle and transmitting a warning signal to the engineer, a speed controller for forcibly reducing the speed of the train (50) or stopping the train (50) And a signal transmission unit 23 for transmitting the danger signal determined by the risk detection unit 21 to the situation room or the office room.

The sensor 10 preferably comprises a light ray (Lidar) or a laser sensor (Laser Seonsor).

However, the present invention is not limited thereto, and the sensor may be configured in various ways.

Further, a camera (not shown) may be further provided on a front portion of the train 50 to detect an object of a long distance that the sensor 10 can not recognize.

The train computer 20 has a safety step according to the distance from the obstacle 60 and a warning step to warn the engineer, a dangerous step to decelerate the speed of the train 50 and a collision step to stop the train 50 , And is configured to transmit a signal to a situation room or a station room in a case of a danger phase or more.

The train computer 20 determines the risk of collision only when the size of the obstacle 60 sensed by the radar sensor 10 is equal to or greater than a predetermined value and the sensor 10 determines whether or not the train 50 is on the platform It is preferable to operate only when approaching within a certain distance.

Hereinafter, the operation of the railway landing stage crash incident response system of the present invention will be described with reference to FIG.

When the train 50 approaches the platform, the sensor 10 provided on the front portion of the train 50 operates to check whether the obstacle 60 exists in the line portion.

At this time, it is preferable to recognize a distant obstacle that the sensor 10 can not detect by the camera provided on the front portion of the train 50.

If there is no obstacle (60) in the railway section, it is determined as a safety stage so that the train can freely enter the landing platform. If the obstacle (60) is present in the railway section, the size and distance of the obstacle (60) are grasped.

If the obstacle 60 is smaller than a predetermined size, that is, it is a small creature such as a mouse or a small object, it is recognized as a safety step without determining the risk of collision, so that the train can enter the platform normally.

However, when the obstacle 60 is larger than a predetermined size and there is a risk of collision with a train, that is, when a passenger falls or is transported, or when an object of a certain size or more exists in the railway portion and the obstacle 60 is largely recognized, The speed of the train 50 is controlled by determining the risk of collision based on the distance from the train 60 to the train 50.

More specifically, if the distance between the obstacle 60 of the railway section and the train 50 is larger than the set value b, the warning signal is transmitted to the engineer by determining that it is a state of caution, Allow the train to run at a speed you can get.

When the distance between the obstacle 60 and the train 50 is within a certain range (between the set value a and the set value b), the speed of the train 50 is forcibly decelerated, So that the train 50 can be stopped before a collision with the train 50 occurs.

If the distance between the obstacle 60 and the train 50 is smaller than the set value a, the train 50 is forcibly stopped by determining the collision step so that the train 50 does not collide with the obstacle 60 .

According to the above-described method, it is possible to prevent or minimize the human or material damage caused by the collision of the train 50 with the obstacle 60.

That is, according to the present invention, a light ray or a laser sensor can be provided on the front portion of a train, and the size and distance of the obstacle on the line portion can be immediately grasped by the train computer.

In addition, a camera provided on the front of the annual vehicle can recognize distant obstacles that the sensor can not detect.

Accordingly, when an obstacle is detected in the line portion, it is possible to cope with the obstacle according to the size and distance of the obstacle instead of stopping the train unconditionally.

In the risk phase or the collision phase, signals are transmitted from the train computer 20 to the station room or the situation room to promptly rescue the passengers who have fallen or fired, and to limit the entry of subsequent vehicles. Can be prevented.

Although the sensor 10 provided on the train 50 itself detects an obstacle in the railway line portion of the train 50 to prevent a collision accident, the sensor 10 provided in the train 20 is always operated It is also possible to control the speed of the train by sensing obstacles in areas other than the platform.

When the sensor 10 is always operated to detect an obstacle, it is possible to prevent a major accident such as a derailment of a train due to an obstacle placed on the railway portion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be appreciated by those skilled in the art that numerous changes and modifications can be made to the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

10 ... Sensor
20 ... train computer
21 ... Risk detection unit
22 ... speed control section
23 ... signal transmission unit
50 ... train
60 ... obstacle

Claims (7)

And detects the presence or absence of the obstacle 60 and detects the presence of the obstacle 60 and detects the presence of the obstacle 60. The obstacle 60 detects the presence of the obstacle 60 by detecting a reflected wave reflected from the obstacle 60 of the railway portion after emitting a radio wave or laser to the upper side of the railway 50, A sensor 10 for measuring the distance of the sensor 10;
A risk detection unit 21 for determining a risk of collision according to the distance from the obstacle 60 and transmitting an alarm signal to the engineer, a controller 50 for forcibly decelerating the speed of the train 50 or stopping the train 50 when the risk of collision becomes high And a train computer (20) having a speed control unit (22). The method according to claim 1,
The train computer (20)
And a signal transmission unit (23) for transmitting the danger signal determined by the risk detection unit (21) to the situation room or the office room. 3. The method according to claim 1 or 2,
The train computer (20)
A danger step for decelerating the speed of the train 50, and a collision step for stopping the train 50, in accordance with the distance from the obstacle 60, Railway platform crash incident response system. The method of claim 3,
The train computer (20)
And a signal is transmitted to a situation room or a station room in a case of a danger level or more. The method according to claim 1,
The train computer (20)
Wherein the collision risk is determined only when the size of the obstacle (60) sensed by the radar sensor (10) is equal to or greater than a predetermined value. The method according to claim 1,
The sensor 10 comprises a light ray (Lidar) or a laser sensor (Laser Seonsor)
And is operated only when the train (50) approaches within a predetermined distance from the landing platform. The method according to claim 1,
And a camera is further provided on a front portion of the train (50).

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