JPH10244943A - Railroad crossing safety device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a serious accident in a railroad crossing, and the stop of a train, which interfere with the operation of a train, by detecting the traffic jam of a forward road over the crossing, and giving the warning display by a flashing signal by a letter, and a voice signal before the crossing, to prevent the entry of a vehicle in the crossing. SOLUTION: This device comprises a vehicle detector 6 for detecting the vehicles on a forward road 2 over a crossing 1, at a high position through a post 8. On the other hand, a warning display unit 7 for generating the warning, is installed in front of the crossing 1. The vehicle detector 6 judges that the road 2 is jammed when the detection of the vehicle is continued for more than about 5 seconds, by utilizing a photoelectric obstacle sensor which utilizes the infrared ray or the like. On the other hand, the warning display unit 7 comprises a display panel for flashing the light emitting diode letters 'traffic jam forward', the patlight of a red accident warning flash signal, and a speaker for outputting the voice. Whereby the crossing accident and the interfering with the operation of the train, can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects a traffic congestion on a road ahead of a railroad crossing and notifies the vehicle in front of the railroad crossing by flashing characters and voices. The present invention relates to a level crossing safety device that is not left behind.

[0002]

2. Description of the Related Art There is an intersection of a general road ahead of a railroad crossing, and a lane dedicated to a right turn is not installed on the road looking into the intersection. If there is an absolutely large number of crossings, the road from the intersection to the railroad crossing may be congested. In such a congested road, a vehicle may enter the railroad crossing only by checking that the barrier is raised without checking the road condition ahead of the railroad crossing, and may be left behind in the railroad crossing. Therefore, the worst case is a collision with a train, which is extremely dangerous.

[0003] In order to prevent a level crossing accident from occurring due to a human error such as insufficient confirmation at the time of passing through a level crossing, a level crossing safety device as shown in FIG. 5 has been conventionally developed and put into practical use. ing. This level crossing safety device is
A vehicle detection sensor 3 using infrared rays or the like is buried in a road 2 that crosses the road, and a road signal 4 is installed beside the road in front of the railroad crossing 1. If the road 2 from the intersection 5 in front of the level crossing 1 to the level crossing 1 is congested, this is detected by the sensor 3 and a red signal is output by the road signal 4 installed beside the road in front of the level crossing. The displayed vehicle is stopped so that the vehicle does not enter the level crossing 1 in front of the level crossing.

[0004]

However, in the above-mentioned conventional safety device, the work of burying the sensor 3 in the road 2 and
The work of installing the road traffic light 4 is necessary. Such work cannot be performed by a railway company alone, and requires a predetermined construction procedure for obtaining the permission of local governments such as government offices and police. In addition, the work had to be carried out under the supervision of the work, and various problems such as land acquisition and budget were involved, and the whole work was large-scale.

[0005] If a vehicle is trapped in a railroad crossing, a signal facility for stopping the approaching train before it arrives at the railroad crossing is installed along with the railroad crossing.
Therefore, the driver of the trapped vehicle can use this signal facility to notify the train. However, when the train is stopped, there is a problem that the subsequent train operation schedule is disturbed, which hinders the train operation. Therefore, it is a problem that the vehicle must not be left behind and trapped in the railroad crossing.

[0006]

SUMMARY OF THE INVENTION The present invention has been improved and eliminated in view of the above-mentioned problems, and detects a traffic jam ahead of a level crossing when the road in front of the level crossing is congested. In the above, an alarm display is provided by a flashing signal of a character and an audio signal, and an apparatus capable of preventing entry into a railroad crossing is provided.

Means adopted by the present invention to solve the above-mentioned problems are a vehicle detection device for detecting a vehicle on a road in front of a railroad crossing, and a vehicle detection device mounted on a front side of a railroad crossing. A crossing safety device characterized by comprising a warning display device that notifies a vehicle in front of a crossing by a signal from a detection device to a vehicle in front of the crossing by flashing characters, sounds, light emission, and the like.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the embodiments of the invention shown in the drawings. The same reference numerals as those in the conventional case denote the same members. FIGS. 1 to 4 relate to an embodiment of the present invention, FIG. 1 is a perspective view showing an outline of a level crossing safety device, and FIG. 2 is a diagram showing a vehicle detection device 6. ) Is its front view, FIG. 3 (B) is its side view, FIG. 3 shows the alarm display device 7, FIG. 3 (A) is its front view, FIG. 3 (B) is its side view, and FIG. It is a flowchart of a safety device.

As shown in FIG. 1, this level crossing safety device includes a vehicle detection device 6 for detecting a vehicle on a road 2 in front of the level crossing 1 and a column near the road 2 beyond the level crossing 1. 8 so that it does not hinder the traffic of the vehicle. On the other hand, beside the railroad crossing 1, an alarm display device 7 that issues an alarm by flashing, voice, light emission, etc. of a character is installed, receives a signal from the vehicle detection device 6 via a cable, and follows a predetermined flow. Signal processing is performed, and an alarm display is performed if necessary.

The vehicle detecting device 6 is as shown in FIG. The vehicle detection device 6 uses a photoelectric obstacle sensor 9 using infrared rays or the like, and has a detection distance of 8 m. Since the obstacle sensor 9 has a detection angle area of about 60 degrees, it is possible to detect two to three vehicles at a time. Therefore, if there is a traffic jam, the vehicle 10
It is possible to detect up to three devices at a stretch, and it is in a state of continuous detection. The left and right side surfaces and the upper surface side of the obstacle sensor 9 are covered with a drip-proof cover 12 attached via a bracket 11 so that detection of the obstacle sensor 9 does not hinder the detection even during rainfall.

On the other hand, as shown in FIG. 3, the alarm display device 7 includes a display panel 14 using a light emitting diode 13 of super-brightness and a patrol light 15 for outputting a red light emission signal. And a speaker 16 for outputting an audio signal.

Next, the operation of the safety device for level crossing constructed as described above will be described with reference to the flowchart shown in FIG. First, when the power of the device is turned on, the obstacle sensor 9 of the vehicle detection device 6 operates, and the obstacle sensor 9
Detects vehicles passing below. When the obstacle sensor 9 outputs a signal indicating that the vehicle 10 is detected, the 5-second timer operates. This 5-second timer determines whether the state of vehicle detection is 5 seconds or longer or less than 5 seconds. If vehicle detection continues for 5 seconds or longer, it is determined that the road 2 in front of the railroad crossing 1 is congested. If it is less than 5 seconds, it is determined that there is no traffic jam.

It goes without saying that the time setting of the 5-second timer can be changed as appropriate in accordance with road conditions and the like.
For example, if the road is wide and the distance from the level crossing 1 to the intersection 5 is sufficient, the traveling speed of the vehicle 10 exceeding the level crossing 1 is several tens of km per hour, and the vehicle 10 is detected within a range of 60 degrees. To pass through the detection area of the obstacle sensor 9 2
3 seconds is enough. Therefore, when the detection state of the vehicle 10 continues for a long time of 5 seconds or more, it is determined that there is a traffic jam. Also, in such a traffic jam, three vehicles 10 always enter the detection area of the obstacle sensor 9 and slow down or stop, and the vehicle detection device 6 keeps outputting the detection signal of the vehicle. become.

In this way, when the 5-second timer expires and the state of vehicle detection continues for 5 seconds or more,
This is output to the alarm display device 7 through the cable. The alarm display device 7 flashes and displays the characters “congestion ahead” by the light emitting diode 13 on the display panel 14, emits light with the patrol light 15, and further displays the speaker 1.
At 6, a voice output saying “Please do not enter a traffic congestion in front of the railroad crossing” is issued,
Warning display to the driver.

"Congestion ahead" on the display panel 14
Blinks the character of the light-emitting diode 13 "forward" twice at one-second intervals, then blinks the character of the light-emitting diode 13 "traffic jam" twice at one-second intervals, and finally the entire " The character "Congestion ahead" blinks twice at one second intervals. When the detection of the vehicle 10 by the vehicle detection device 6 has continued for 5 seconds or more, these warning displays are repeatedly performed during the continuation of the detection.

When the road 2 ahead of the level crossing 1 is congested, the vehicle detecting device 6 detects the traffic jam and displays an alarm to the driver of the vehicle 10 approaching the level crossing 1. I do. Therefore, even if the driver of the vehicle 10 approaching the level crossing 1 does not pay attention to confirm the condition of the road 2 ahead of the level crossing 1, the three types of alarm display based on both visual and auditory senses are displayed. Road 2 ahead of railroad crossing 1
Can be notified that the vehicle is in a traffic jam, and the driver can reliably recognize this. Therefore, the vehicle 10 does not enter the railroad crossing 1 in such a situation,
It is possible to prevent a railroad crossing accident. Also, there is no hindrance to train operation such as stopping the approaching train when the vehicle 10 is confined in the railroad crossing 1.

[0017]

As described above, in the present invention,
Detects a vehicle on the road in front of the railroad crossing, judges the traffic congestion on that road, and uses a warning display device installed in front of the railroad crossing to flash characters, sound, emit light, etc. The driver who tries to enter the railroad crossing without checking the road conditions ahead of the railroad crossing should be made aware of the "congestion ahead" because the vehicle that was approaching was notified. Can be. Since this recognition is performed by a character blink signal, voice, light emission, and the like, the recognition is reliable. In other words, even if the road in front of the railroad crossing is congested, disregard it or ignore it and recklessly enter the railroad crossing, get left behind in the railroad crossing, and approach or approach There is no problem such as stopping the train and hindering the train operation thereafter.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing the entire crossing safety device according to the present invention.

FIG. 2 shows a vehicle detection device according to the present invention,
Figure (A) is a front view thereof, and Figure (B) is a side view thereof.

FIG. 3 shows an alarm display device according to the present invention,
Figure (A) is a front view thereof, and Figure (B) is a side view thereof.

FIG. 4 is a view showing a flowchart of the safety device for level crossing according to the present invention.

FIG. 5 is a schematic perspective view showing an entire conventional level crossing safety device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Railroad crossing 2 ... Road 5 ... Intersection 6 ... Vehicle detection device 7 ... Warning display device 8 ... Prop 9 ... Obstacle sensor 10 ... Vehicle 13 ... Light emitting diode 14 ... Display panel 15 ... Patlight 16 ... Speaker

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tamotsu Isobe 2-4-2, Shibata, Kita-ku, Osaka City Inside West Japan Railway Company (72) Inventor Kenji Noyama 2-4-2, Shibata, Kita-ku, Osaka City West Japan Railway Company (72) Inventor Toshihiko Harada 559-11 Suetakenaka, Kudamatsu City, Yamaguchi Prefecture (72) Inventor Kazuhiko 132-17, Suetakenaka, Kudamatsu City, Yamaguchi Prefecture

Claims (1)

[Claims] 1. A vehicle detection device for detecting a vehicle on a road ahead of a railroad crossing, a vehicle detection device attached to a front side of the crossing, and a vehicle on the front side of the crossing according to a signal from the vehicle detection device,
A level crossing safety device comprising: an alarm display device that notifies a road condition ahead of a level crossing by flashing characters, voice, light emission, and the like.