JP2013206294A - Railroad obstacle resolution system and railroad obstacle resolution method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve the obstacle of a railroad, and to preliminarily prevent a railroad accident, and to shorten a railroad obstacle time and to shorten the delay time of a train.SOLUTION: A railroad obstacle resolution system includes: a first signal (13A) for displaying the permission or inhibition of entry from a first road (R1) to an intersection (C1) at the intersection (C1) between the first road (R1) and a second intersection (R2) where a railroad (C2) is set; a second signal (13B) for displaying the permission or inhibition of entry from the second road (R2) to the intersection (C1) at the intersection (C1) between the first road (R1) and the second road (R2); a train detection sensor (12) for generating a train detection signal by detecting a train approaching the railroad (C2); a railroad obstacle detection sensor (11) for generating an obstacle detection signal by detecting an automobile (V3) in the railroad (C2); and a signal control device (14) for making the first signal (13A) display the inhibition of entry to the intersection (C1), and for making the second signal (13B) display the permission of entry to the intersection (C1) on the basis of the train detection signal and the obstacle detection signal.

Description

  The present invention relates to a crossing trouble solving system and a crossing trouble solving method for solving troubles at a crossing.

  A related level crossing trouble eliminating system controls whether or not an automobile enters a level crossing at a level crossing where a railroad and a road intersect each other according to the situation of a level crossing exit side road (see Patent Document 1). This prevents an accident in which the car in the crossing becomes unable to advance or retreat due to a clogging of the preceding vehicle at the crossing.

JP 2003-288679 A

  Even when there is an intersection in the immediate vicinity of a level crossing, a situation occurs in which the automobile in the level crossing cannot move forward and backward. That is, the main road runs parallel to the track, and the distance from the railroad crossing to the intersection is not enough for the length of one car. In this case, if there is a large amount of automobile traffic on the intersecting roads, the car cannot get out of the railroad crossing even though the vehicle is in trouble at the railroad crossing, causing a problem in the railroad crossing.

  Therefore, an object of the present invention is to provide a crossing trouble solving system and a crossing trouble solving method that eliminate the trouble of a crossing.

  Hereinafter, the features of the present invention will be described with reference numerals. Note that the reference numerals are for reference, and the present invention is not limited to the embodiments.

  The crossing trouble solving system (10) according to the first feature of the present invention is the first at the intersection (C1) between the first road (R1) and the second road (R2) where the crossing (C2) is installed. The first traffic light (13A) displaying permission or prohibition of entry from the road (R1) to the intersection (C1), and the intersection (C1) between the first road (R1) and the second road (R2) The second traffic light (13B) that displays permission or prohibition of entry from the second road (R2) to the intersection (C1) and a train that detects a train approaching the crossing (C2) and generates a train detection signal Based on the detection sensor (12), the crossing obstacle detection sensor (11) that detects the automobile (V3) in the crossing (C2) and generates an obstacle detection signal, and the train detection signal and the obstacle detection signal. Go to intersection (C1) at 1 traffic light (13A) A second traffic light with displaying the prohibition traffic signal controller to display the entry permission to the intersection (C1) to (13B) (14).

  In the above feature, it has a third traffic light (13C) that displays prohibition of entry to the railroad crossing (C2), and the traffic light control device (14) is based on the train detection signal and the obstacle detection signal. The traffic prohibition (13C) is displayed to prohibit entry to the crossing (C2).

  The level crossing trouble solving method according to the second feature of the present invention is that the first road (R1) and the second road (R2) where the level crossing (C2) is installed are crossed from the first road (R1). From the second road (R2) to the intersection at the intersection of the first traffic light (13A) that indicates permission or prohibition of entering the intersection and the first road (R1) and the second road (R2) Prepare a second traffic light (R2) that displays permission or prohibition of entry, detect a train approaching the railroad crossing (C2), generate a train detection signal, detect a car in the railroad crossing (C2), and detect an obstacle A detection signal is generated, based on the train detection signal and the obstacle detection signal, the first traffic light (13A) displays an entry prohibition to the intersection (C1) and the second traffic light (13B) goes to the intersection (C1). To display the permission to enter.

  A third traffic light (13C) that displays the permission or prohibition of entry to the railroad crossing (C2) is prepared, and the third traffic light (13C) is based on the train detection signal and the obstacle detection signal. To prohibit entry to the level crossing.

According to the feature of the present invention, when a train approaches a railroad crossing, the automobile can exit the railroad crossing, so that the trouble of the railroad crossing can be solved and a railroad crossing accident can be prevented.
In addition, the train delay time can be shortened by shortening the time for crossing trouble.

It is a schematic diagram showing an intersection provided with a traffic light according to the first embodiment and a railroad crossing where a car has entered. It is a schematic diagram which shows the intersection and level crossing provided with the traffic signal which the display changed in FIG. It is an outline figure showing composition of a level crossing trouble solution system concerning a 1st embodiment. It is a flowchart which shows the control procedure of the crossing trouble solving system shown in FIG. It is a schematic diagram which shows the crossing which the vehicle provided with the traffic signal concerning 2nd Embodiment, and the motor vehicle approached.

  Hereinafter, embodiments will be described in detail with reference to the drawings.

1st Embodiment As shown in FIG. 1, road R1 and road R2 have the intersection C1 which mutually cross | intersects. The road R1 extends in parallel with the track L1, and the track L1 crosses the road R2. The road R2 has a railroad crossing C2 installed in front of the intersection 1. Alarms 5A and 5B and breakers 6A and 6B are arranged before and after the crossing C2.

  As shown in FIGS. 1 and 3, the level crossing obstacle elimination system 10 is installed at a level crossing obstacle detection sensor 11 installed in a level crossing C2, a train detection sensor 12 that detects approach of a train to the level crossing C2, and an intersection C1. And a traffic signal control device 14 that controls the traffic signal 13 based on detection signals from the crossing obstacle detection sensor 11 and the train detection sensor 12.

  The level crossing obstacle detection sensor 11 includes, for example, the same sensors 11A, 11B, 11C, and 11D disposed on both sides of the road in C2 at the level crossing. Each sensor 11A-11D uses, for example, an optical sensor, an ultrasonic sensor, a loop coil, a three-dimensional laser radar, and a stereo camera.

  The optical sensor projects infrared rays and laser beams into the railroad crossing and receives the light with a light receiver. The ultrasonic sensor is a method of emitting an ultrasonic wave and detecting an obstacle based on the presence / absence and arrival time of the reflected wave of the ultrasonic wave. The loop coil embeds a loop coil in the road surface within the railroad crossing C2, and detects the presence or absence of an obstacle by a change in magnetic flux. The three-dimensional laser radar detects an obstacle by reflecting the laser beam and emitting the laser beam. The stereo camera system is a system that monitors the inside of a railroad crossing with a stereo camera that can shoot in three dimensions and detects an obstacle in the crossing. There may be one railroad crossing obstacle detection sensor, or it may be installed in the middle of the road.

  The train detection sensor 12 uses, for example, a track circuit method, a ground element / car element method, a CCD camera method, a millimeter wave radar method, and a GPS positioning method. The track circuit system detects the position of the train by passing a signal current through two rails, and when the train enters the section, both rails are short-circuited by the axle and the signal current does not flow to the relay. is there. The ground unit / car unit system is a system in which a train unit is mounted on the train, and the ground unit uses an infrared sensor to receive infrared rays emitted from the vehicle unit by the ground unit to detect the position of the train. is there. The CCD camera system is a system that detects the position of a train based on an acquired image. The millimeter wave radar system receives a radio wave reflected from a train by emitting a millimeter wave to the train, and specifies the position of the train by arrival time. The GPS positioning method is a method in which a GPS receiver is mounted on a train, a signal from a satellite is received by the GPS receiver, and the current position of the train is specified.

  The traffic light 13 includes a traffic light 13A disposed at the intersection C1 along the road R1 and a traffic light 13B disposed on the intersection C1 on the extension of the road R2. Each of the traffic lights 13A and 13B displays, for example, blue, yellow, or red and blinking of each color. “Blue” indicates permission to enter the intersection. “Yellow” indicates, as a rule, entry prohibition from the stop position to the intersection and permission to enter the intersection under certain conditions. “Red” indicates that it is impossible to enter the intersection beyond the stop position. In addition, “flashing yellow” indicates permission to enter the intersection with caution. In addition to the signal color and blinking, sounds such as an arrow, a symbol of ◯, x, and voice may be used.

  The traffic light control device 14 includes a CPU (Central Processing Unit) that processes data according to a processing program, a ROM (Read Only Memory) that stores the processing program, and a RAM (Random) that temporarily stores data necessary for the processing of the CPU. (Access Memory).

  The traffic signal controller 14 determines the signal color and blinking of the traffic signal 13A for the intersection and the traffic signal 13B for the railroad crossing based on the detection signals of the level crossing obstacle detection sensor 11 and the train detection sensor 12.

  Next, a method of using the crossing trouble solving system 10 will be described with reference to FIGS.

  In FIGS. 1 and 2, the automobile V3 obstructs the crossing C2. In FIG. 1, when the train is not approaching the railroad crossing C2, at this time, the traffic light 13A displays “blue” and the traffic light 13B displays “yellow” blinking. As a result, the automobile V2 on the road R1 enters the intersection C1 at a normal speed. On the other hand, the car V3 in the railroad crossing C2 of the road R2 can confirm the safety and enter the intersection C1.

  In FIG. 2, when the train is approaching the crossing C2, the alarm devices 6A and 6B emit an alarm sound and an alarm color, and the breakers 6A and 6B are activated to close the crossing C2. The traffic light 13A changes to “red” and the traffic light 13B changes to “blue”. Thereby, the automobile V2 stops in front of the intersection C2. On the other hand, the automobile V3 can exit the railroad crossing C2 and enter the intersection C1.

  Next, a control method of the crossing trouble solving system 10 will be described based on the flowchart of FIG.

  The train detection sensor 12 detects whether the train is approaching the railroad crossing C2 (step S11). When the train detection sensor 12 does not detect a train (NO in step S11), the circuit breakers 6A and 6B do not operate and the railroad crossing C2 is open. The traffic light 13A displays “blue” and allows the vehicle C2 to enter the intersection C1. In addition, the traffic light 13B blinks “yellow” to allow the vehicle V3 in the railroad crossing C2 to enter the intersection C1 (right turn, left turn) under the attention of other traffic.

  On the other hand, when the train approaches the railroad crossing C2 and the train detection sensor 12 detects the train (YES in step S11), the process proceeds to step S12.

  In step S12, the train detection sensor 12 generates a train detection signal and outputs the train detection signal to the traffic signal control device 14, the alarm devices 5A and 5B, and the circuit breakers 6A and 6B. At this time, the alarm devices 5A and 5B output an alarm using a color display or sound, and the breakers 6A and 6B close the railroad crossing C2 to prevent the subsequent vehicle from entering the railroad crossing C2.

  The traffic signal control device 14 causes the level crossing obstacle detection sensor 11A-11D to detect whether or not an automobile (obstacle) is present in the level crossing C2 based on the train detection signal (step S13). If the level crossing obstacle detection sensor 11A-11D does not detect the automobile V3 in the level crossing C2 (NO in step S13), the process ends.

  On the other hand, when the level crossing obstacle detection sensor 11A-11D detects the automobile V3 in the level crossing C2 (YES in step S13), the level crossing obstacle detection sensor 11A-11D generates an obstacle detection signal, and the signal control device 14 Send to.

  The traffic signal control device 14 controls the traffic signals 13A and 13B based on the obstacle detection signal (step S14). That is, the traffic light control device 14 changes the display of the traffic light 13A to “red” and prohibits the vehicle V2 from entering the intersection C1. In addition, the traffic light control device 14 changes the display of the traffic light 13B to “blue” and allows the vehicle V3 to enter the intersection C1. As a result, the automobile V3 can quickly and reliably exit from the crossing C2.

  According to the above embodiment, since the automobile V3 can quickly escape from the level crossing C2, it is possible to eliminate the level crossing trouble and prevent a level crossing accident.

  Moreover, the train delay time can be shortened by shortening the railroad crossing trouble time.

Second Embodiment As shown in FIG. 5, the crossing trouble solving system 10 includes a traffic light 13C that is installed in front of the crossing C2 and displays permission or prohibition of entry into the crossing C2.

In this case, when the train detection sensor 12 detects a train approaching the level crossing C2 and the level crossing obstacle sensor 11A-11D detects the automobile V3, the signal control device 14 changes the display of the traffic light 13C from “blue” to “red”. Change to Thereby, the automobile V4 stops at the stop position before the railroad crossing C2 by the display of “red” on the traffic light 13C. Therefore, it is possible to reliably prevent the automobile V4 from entering the railroad crossing C2.
In addition, this invention is not limited to this embodiment, Moreover, each embodiment can be changed and corrected in the range which does not change the meaning of invention.

DESCRIPTION OF SYMBOLS 10 Railroad crossing obstacle elimination system 11 Railroad crossing obstacle detection sensor 12 Train detection sensor 13 Traffic light 14 Traffic light controller

Claims (4)

A first traffic light that displays permission or prohibition of entry from the first road to the intersection at the intersection of the first road and the second road where the railroad crossing is installed;
A second traffic light that displays permission or prohibition of entering the intersection from the second road at the intersection of the first road and the second road;
A train detection sensor that detects a train approaching a level crossing and generates a train detection signal;
A level crossing obstacle detection sensor that detects an automobile in a level crossing and generates an obstacle detection signal;
A railroad crossing obstacle elimination system having a traffic signal control device that displays an entry prohibition on an intersection on a first traffic light based on a train detection signal and an obstacle detection signal, and that displays an entry permission on an intersection on a second traffic signal. Has a third traffic light that displays the prohibition of entering the railroad crossing,
The crossing trouble solving system according to claim 1, wherein the traffic signal control device displays a prohibition of entering a railroad crossing on a third traffic light based on a train detection signal and an obstacle detection signal. A first traffic light that displays permission or prohibition of entry from the first road to the intersection at the intersection of the first road and the second road where the railroad crossing is installed; and the first road and the second road; Prepare a second traffic light that displays permission or prohibition of entering the intersection from the second road at the intersection,
Detecting a train approaching a level crossing and generating a train detection signal
An obstacle detection signal is generated by detecting a car in a level crossing,
A crossing trouble solving method for causing a first traffic light to display an entry prohibition to an intersection based on a train detection signal and an obstacle detection signal and to display an entry permission to the intersection to a second traffic light. Prepare a third traffic light that displays permission or prohibition to enter the railroad crossing,
The crossing trouble solving method according to claim 3, wherein a prohibition of entry to the crossing is displayed on the third traffic light based on the train detection signal and the obstacle detection signal.

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