JP2006021644A - Crossing accident prevention system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crossing accident prevention system certainly attention-rousing a person passing a crossing from danger in the crossing and capable of previously preventing the crossing accident. <P>SOLUTION: Although the danger can be warned to the passing person C1 in the crossing F by a train approach warning means 1, since a train detection means 1 is a radar capable of detecting a movement direction α of the train T, detection of the train advancing in a direction opposite to the crossing is made possible and influence of rainfall is eliminated. The person C1 passing the crossing F in is more certainly attention-roused from danger in the crossing to previously prevent the crossing accident. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a railroad crossing accident prevention system effective for preventing accidents at a railroad crossing where a railroad and a road cross each other.

  When a railroad crossing accident occurs, the damage to the parties involved in the accident is natural, and since the smooth operation of the train is hindered, the damage spreads to a very wide range. It has been disclosed.

  For example, Patent Document 1 discloses a notification means that is arranged at a position recognizable to a driver of a car at a railroad crossing and outputs notification information that is visual information or auditory information, a road margin detection means, a road margin By entering the control means to control the notification means to output to the driver of a vehicle capable of entering the level crossing, including the level crossing preceding road margin information related to the degree, it will enter the level crossing due to traffic congestion on the road ahead A railroad crossing connection road information notification system that prevents a car from being trapped at a railroad crossing and prevents a railroad crossing accident in advance has been disclosed.

  Further, in Patent Document 2, in a traffic control circuit breaker having a movable member, a light source provided at a location separate from the movable member, and a flexible hose-like shape for transmitting light from the light source to the movable member. The vehicle has a light transmission means and a light emitting portion that is provided on the movable member and emits light transmitted from the light transmission means, and the position of the crossing and the state of the breaker are improved by improving the visibility of the breaker. A circuit breaker is disclosed that prevents a railroad crossing accident by making it easily recognized by a pedestrian or the like.

JP 2000-285386 A JP-A-7-69216

  However, in the system described in Patent Document 1, a sensor using pressure or light is used as a road margin detection means, and only a confirmation of the presence of a car on the road ahead is performed, and there is a high risk of malfunction. Met.

  Further, in the circuit breaker described in Patent Document 2, when the circuit breaker is closed, the light emitting part is in a low position, and it is hidden behind the vehicle and cannot be seen, or the road prospect is poor before and after the crossing. Visual recognition may be difficult. Further, a hose-like light transmission means is required, and the mechanism related to light emission is complicated.

  The present invention has been made in view of the problems as described above, and provides a crossing accident prevention system capable of surely alerting a person who has passed a crossing of the danger in the crossing and preventing a crossing accident in advance. It is to be provided.

  In order to achieve the above object, the present invention is configured as follows. That is, the railroad crossing accident prevention system according to the present invention includes a train detection means for detecting a train approaching the railroad crossing, and a driver or a pedestrian of a car heading for the railroad crossing on a railroad crossing installation road that is a road provided on both sides of the railroad crossing. Train approach warning means for alerting the approach of a train to the train, and when the train detection means detects a train, the train approach alert means alerts the approach of the train, the train The detection means is a radar capable of detecting the moving direction of the train.

  Furthermore, an approaching person detection means capable of detecting a car, a pedestrian, etc. heading in the direction of the crossing is provided on the crossing attaching road, and the train approaching when the train detection means and the approaching person detection means detect each. A warning means alerts the approach of a train.

  Further, the railroad crossing accident prevention system according to the present invention includes a railroad crossing detection means for detecting a car, a pedestrian, etc. entering the railroad crossing, and a train detection means for detecting the presence and moving direction of the train traveling on the railway. A train crossing abnormality notification device that alerts the driver of the train to the entry of a car, a pedestrian, etc. into the crossing, and the train detecting means detects a train traveling in the crossing direction, and When the crossing detection means detects a car, a pedestrian, or the like entering the crossing, the crossing abnormality notification device notifies the train driver of the abnormality in the crossing. To do.

  Moreover, the abnormality notification device in a crossing is installed in front of a crossing at a distance corresponding to the maximum speed and braking performance of the train.

  Further, the crossing accident prevention system according to the present invention is a road crossing the railroad to the driver of the car heading for the crossing on the near road before the crossing on the crossing installation road that is a road provided on both sides of the crossing. An intrusion prohibition informing means for informing that there is no room for entry into the side road, and an automobile detection means for detecting the presence of the automobile provided on the destination road, wherein the automobile detection means is provided on the destination road. When it is detected that there is no room for entry, the entry prohibition notification means issues a warning for prohibiting entry into a railroad crossing to the automobile on the front road, and the automobile detection means further indicates the direction of movement of the automobile. It is a radar that can be detected.

  Further, the vehicle detection means is a radar capable of detecting the moving speed of the vehicle.

  According to the railroad crossing accident prevention system according to the first aspect of the present invention, the train approach warning means can alert the person passing the level crossing, but the train detection means can detect the moving direction of the train. By making it an effective radar, the detection of trains traveling in the opposite direction to the level crossing and the effects of rainfall, etc., are eliminated, and the dangers within the level crossing are more clearly alerted to those passing through the level crossing. A railroad crossing accident can be prevented in advance.

  Further, according to the invention of claim 2, it is possible to alert only when necessary by alerting by the train approach warning means only when a car, a pedestrian or the like is detected by the approaching person detecting means. This is preferable because it leads to energy saving and system reliability improvement related to the operation of the train approach warning means.

  Further, according to the crossing accident prevention system according to the third aspect of the present invention, attention should be paid in advance to a train driver who intends to pass through a crossing by means of an abnormality notification device in a crossing in addition to the conventional signal lights and safety devices. Arousing can be performed, and it is possible to surely alert the danger in the level crossing and prevent a level crossing accident.

  Further, according to the invention of claim 4, by setting the distance provided before the railroad crossing according to the maximum speed and brake performance of the train, the driver who has visually recognized the warning can stop before the railroad crossing. A crossing accident can be reliably prevented, which is preferable.

  Further, according to the crossing accident prevention system according to the present invention as set forth in claim 5, before and after the crossing by informing the presence / absence of the entry of the road on the other side to the vehicle passing the crossing by the entry prohibition notification means. However, it is possible to prevent a car from getting stuck in a railroad crossing even in places with poor visibility, but the vehicle detection means can detect the direction of movement in addition to the presence of the car. Since the system reliability can be improved by eliminating false detections by the traveling vehicle, it is possible to reliably alert the people who pass the level crossing to the danger in the level crossing and to prevent a level crossing accident. .

  Further, according to the invention of claim 6, it is possible to detect the moving speed of the car on the destination side road, so that the traffic flow of the car on the destination side road is predicted and alerted, so that the vehicle passes the railroad crossing. The vehicle can be guided smoothly, which is preferable.

  BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.

(First embodiment)
FIG. 1 is an explanatory diagram showing a first embodiment of a crossing accident prevention system according to the present invention. A railroad crossing F is provided at a location where the railroad L and the railroad crossing attachment road R intersect with each other. In the vicinity of the level crossing F of the level crossing installation road R, an alarm K and a breaker S are provided, but the train detection means 1 which is a microwave Doppler radar capable of detecting the presence and moving direction of the train T is provided on the railway L. The train approach warning means 2, which is a light-emitting character display board in which LEDs are arranged in a dot matrix, is provided in front of the crossing F on the crossing attachment road R, and proceeds from the antenna A1 attached to the train detection means 1 in the direction α. When the radio signal M1 generated when the train T is detected is received by the antenna A2 attached to the train approach warning means 2, the train approach warning means 2 uses the train approach warning means 2 to the car C1 that faces the level crossing F. In this way, the driver who is driving toward the railroad crossing can foresee the approach of the train T by displaying a warning for approaching the train, such as “Train Approach”. It is possible to perform a reliable judgment in situations such as when the time and forward traffic jam leading to the prevention of railway crossing accidents. Of course, if it is installed at a railroad crossing where the alarm device K and the circuit breaker S are not provided, the approach of the train T can be foreseen even in a place where the prospect of the railroad L is poor, and a railroad crossing accident can be prevented.

  FIG. 2 is an explanatory diagram showing an example of a modification of the first embodiment shown in FIG. The level crossing attachment road R is further provided with an approaching person detection means 3 which is a microwave Doppler radar so that it can detect a car C1, a pedestrian, a bicycle or the like heading to the level crossing F. The antenna A2 receives the radio signal M1 when the train T traveling in the crossing direction α is detected, and the radio emitted from the antenna A3 when the approaching vehicle detection means 3 detects the automobile C1 and the like traveling in the crossing direction β. Only when the signal M2 is received, the train approach warning means 2 performs a display to call attention to the approach of the train, so that the display time can be minimized and energy related to the display can be reduced. If the display is used, it is possible to display without relying on an external power source by using a solar cell. It is also preferable because it leads to remedy.

(Second embodiment)
FIG. 3 is an explanatory view for explaining a second embodiment according to the present invention. The train T is running toward the railroad crossing F, and the circuit breaker S is already closed and the alarm device K is operating, but the car C2 remains in the railroad crossing F due to an engine stall or the like. . Here, the level crossing detection means 4 which is a microwave radar installed in the vicinity of the level crossing F detects a car or the like in the level crossing and transmits a radio signal M3 from the antenna A4. In front of the railroad crossing F away from the railroad crossing F by the distance D, the train detection means 1 capable of detecting the presence and the traveling direction of the train T traveling in the railroad crossing direction α, and an abnormality notification device in the railroad crossing that is a two-lamp type alternately flashing light 5 is installed, the crossing detection means 4 detects a car in the crossing, and the train detection means 1 detects the train T in the crossing direction α, and the radio signal M1 is detected by the antenna A5 of the crossing abnormality notification device 5. And M3 are received, the railroad crossing abnormality notification device 5 informs the driver of the train T that the light-emitting unit 51 is alternately blinked to indicate that the vehicle remains in the railroad crossing. ing.

  The driver of the train T who has detected an abnormality in the crossing F by the level crossing abnormality notification device 5 tries to avoid a collision by decelerating or transmitting a horn, etc. Here, the train detection means 1 and the level crossing abnormality notification device 5 The distance D from the installation location to the level crossing F is determined by operating the steady or emergency brake after the driver of the train T visually recognizes the abnormality reporting means 5 in the level crossing while the train T is traveling at the maximum speed determined in the section. If the distance can be stopped, the alignment of the railroad L before the railroad crossing F is preferable because it can be surely decelerated to prevent a collision with the vehicle C2 even when the prospect to the railroad crossing F is poor.

(Third embodiment)
FIG. 4 is an explanatory view for explaining a second embodiment according to the present invention.
On the level crossing installation road R provided on both sides of the level crossing F, the car C3 heading for the front side road R2 crossing the level crossing F from the front side road R1 provided on the front side of the level crossing is traffic jam on the front side road R2. If the automobile C4 is in a stopped state, the train may approach and be confined within the railroad crossing F when entering the railroad crossing F by mistake. Therefore, when the vehicle detection means 6 which is a microwave radar capable of detecting the vehicle C4 stopped on the front road R2 is provided, and the vehicle C4 stopped on the front road R2 is detected, the radio signal M4 is transmitted from the antenna A6. Further, an entry prohibition notification means 7 that is a light emitting character display board in which LEDs are arranged in a dot matrix is provided on the near road R1, and an antenna A7 provided in the entry prohibition notification means 7 transmits a radio signal M4. When receiving, when the entry prohibition notification means 7 displays such as “prohibition of entry” related to entry prohibition to the front road R2, the prospect of the front road R2 from the front road R2 is poor. Even in such a case, the driver of the automobile C3 can reduce the level crossing accident without making a mistake in the eye measurement and without being feared to be trapped in the level crossing F.

  The automobile detection means 6 can detect not only the presence of the automobile C4 on the destination road R2 but also the movement speed of the automobile C4. If the movement speed is equal to or higher than the threshold value, the automobile C4 If the display related to the entry prohibition by the entry prohibition notification means 7 is canceled even within the range, for example, even when the crossing F is relatively wide, the unnecessary stop of the automobile C3 is reduced, and the front side The guidance of the automobile C3 on the road R1 can be made smooth, which leads to an improvement in system reliability and a reduction in the driver's agitation.

  FIG. 5 is an explanatory view showing an example of a modification of the automobile detection means 6 in the third embodiment. The car detection means 6 is intended to detect the car C4 until it gets tired. If the entry prohibition notification means 7 is activated each time a pedestrian or bicycle traveling in the vicinity is detected, the reliability of the system is impaired. Become. Therefore, it is preferable that the vehicle detection means 6 separately detects the vehicle C4 and other pedestrians and bicycles. First, as shown in a), the vehicle detection means 6A and 6B, which are microwave radars, are installed at a distance W in the width direction of the front road R2, and the vehicle detection means 6A and 6B simultaneously detect the presence of an object. If it is determined that the vehicle C4 has been detected, detection due to the passage of a narrow pedestrian or bicycle can be eliminated. In addition, as shown in (b), an automobile detection means 6 that is a microwave radar capable of measuring the presence of an object and the distance to the object is installed above the front road R2, and an object having a height H or more is set. If it is determined that the automobile C4 has been detected when the detection continues for a certain period of time or longer, detection due to the passage of a pedestrian or bicycle that does not stay in the fixed place for such a long time can be eliminated.

  The train detection means 1, approaching vehicle inspection means 3, level crossing abnormality detection means 4 and automobile detection means 6 used in the first to third embodiments described above are not limited to microwave radars, but are infrared sensors, Although an appropriate device such as an ultrasonic sensor or an image processing device using a camera can be used, a radar using microwaves or millimeter waves that can be reliably detected and is less affected by rain or the like is preferably used. Can do.

  As for the radar using such microwave or millimeter wave, it can be detected using a single-output Doppler radar in detecting the presence of an object. In detecting the presence and moving direction of an object, it can be detected using a single-frequency dual-output Doppler radar. In measuring the presence, moving direction, and distance to an object, it can be detected using a multi-frequency Doppler radar. In addition to detecting the presence of objects, the direction of movement, and the distance to the object, it can also detect the presence of stationary objects. An FM-CW type radar or the like can be used as appropriate.

It is explanatory drawing explaining 1st embodiment of the level crossing accident prevention system concerning this invention. It is explanatory drawing explaining an example of a deformation | transformation of 1st embodiment of this invention. It is explanatory drawing explaining 2nd embodiment of the level crossing accident prevention system concerning this invention. It is explanatory drawing explaining 3rd embodiment of the level crossing accident prevention system concerning this invention. It is explanatory drawing explaining the example of a deformation | transformation of the motor vehicle detection system in 3rd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Train detection means 2 Train approach warning means 3 Approaching person detection means 4 Crossing crossing detection means 5 Railroad crossing abnormality notification device 6 Car detection means 7 Entry prohibition notification means F Railroad crossing R Railroad installation road R1 Front road C1 C4 Automobile T Train L Railway A1-A7 Antenna

Claims (6)

Train detection means for detecting a train approaching a level crossing, and train approach for alerting the driver to the train or pedestrians who are approaching the level crossing on the level crossing installation roads that are provided on both sides of the level crossing A warning means, and when the train detection means detects a train, the train approach warning means alerts the approach of the train, and the train detection means can detect the moving direction of the train. A crossing accident prevention system characterized by An approaching person detection means capable of detecting a car, a pedestrian, and the like heading in the direction of the crossing is provided on the crossing attachment road, and the train approach warning is issued when the train detection means and the approaching person detection means perform detection respectively. The crossing accident prevention system according to claim 1, wherein a warning for approaching the train by means is performed. Railroad crossing detection means for detecting cars, pedestrians, etc. entering the railroad crossing, train detection means for detecting the presence and moving direction of a train traveling on the railway, and within the railroad crossing for the driver of the train A train crossing abnormality notification device for advancing the entry of cars, pedestrians, etc. to the train, wherein the train detection means detects a train traveling in the crossing direction, and the crossing detection means enters the crossing. A railroad crossing accident prevention system characterized in that, when a car, a pedestrian, or the like is detected, the railroad crossing abnormality notification device notifies the train driver of the abnormality in the railroad crossing. The level crossing accident prevention system according to claim 3, wherein the level crossing abnormality notification device is installed in front of a level crossing at a distance corresponding to the maximum speed and braking performance of the train. On the level crossing installation road, which is a road provided on both sides of the level crossing, there is no room for entry to the other side of the road crossing the railway for the driver of the car heading for the level crossing before the level crossing. When the entry prohibition notifying means for notifying and the automobile detecting means for detecting the presence of an automobile provided on the destination road, the automobile detecting means detects that there is no room for entry of the automobile on the destination road. The entry prohibition notification means provides a warning of prohibiting entry into a railroad crossing for the vehicle on the front road, and the vehicle detection means is a radar capable of further detecting the moving direction of the vehicle. Railroad crossing accident prevention system. 6. The crossing accident prevention system according to claim 5, wherein the vehicle detection means is a radar capable of detecting a moving speed of the vehicle.

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