JPH1016780A - Railroad crossing alarm display unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a railroad crossing alarm display unit that is able to remedy a span of waiting time of passers-by at railroad crossing and also to obviate any possible physical accident on the crossing. SOLUTION: This display unit is provided with two infrared ray sensors 5a and 5b set up at the side of a railroad track, two identification labels 6 and 7 attached to the lead vehicle of a train and the rearmost vehicle by these sensors 5a and 5b, a microprocessor 11 calculating each span of crossing open time and crossing waiting time after receiving such a signal as having detected the train identification labels 6 and 7 by these sensors 5a and 5b, and a crossing information display board displaying calculated information of this microprocessor 11 as well as a speaker for announcing, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway crossing warning display device for ensuring the safety of automobiles and pedestrians and the safety of train operation using railroad crossings with barriers on railway tracks.

[0002]

2. Description of the Related Art A conventional railroad crossing warning display device is generally called a railroad crossing signal, but warns only that a train is approaching and that a train is passing. At the same time as turning on or blinking the lamp, a warning sound is issued, and in addition to this warning lamp and the warning sound, only an "arrow" display indicating the traveling direction of the train is provided.

[0003]

In such a conventional level crossing signal, there is no indication of the current position of the train and the opening / closing time of the circuit breaker. It is not possible to make a detour and use a means to avoid crossing a railroad crossing, for example, using an overpass, and especially during commuting hours, the time when the barrier is down is very long, I had to wait for the gate to open, even though I was able to cross the road in a shorter time.

[0004] Therefore, there is often an economic disadvantage associated with time loss, and in some cases, a social problem.

[0005] Also, even when the level crossing barrier is open,
In the conventional level crossing signal, there is no means to notify the opening / closing time of the circuit breaker, so the pedestrian cannot know in advance the time when the circuit breaker is open, especially at railroad crossings where there are many routes and wide, Large vehicles with relatively slow walking speed, elderly people and pedestrians with disabilities have disadvantages such as always being anxious when crossing.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a railroad crossing warning display device which eliminates the above-mentioned drawbacks and clearly indicates the current position of a train and the open / close time of a circuit breaker.

[0007]

SUMMARY OF THE INVENTION A railroad crossing warning display device according to the present invention comprises an infrared sensor installed beside a track, a train identification label attached to a train as detected by the infrared sensor, and an infrared sensor. A microprocessor that calculates the current position and speed of the train in response to the output signal of the train, calculates the opening and closing time of the circuit breaker from the calculation result, and a speaker that announces information from the microprocessor and a level crossing information to be displayed A display board is provided, and furthermore, this railroad crossing information display board includes a railroad crossing waiting time display section and a railroad crossing open time display section, and further has a current position display section for displaying the current position of the train. I have.

[0008] Also, there is provided a railroad crossing warning display device having the feature that the train identification label can identify the type of train.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the drawings.

First, the principle of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram showing a train detection system according to the present invention, showing a train running in a section between two infrared sensors installed beside a track. In the figure, reference numeral 1 denotes a three-car train, and a track 2
2 shows a state immediately after the rearmost vehicle 4 has passed the infrared sensor 5a while traveling between the infrared sensors 5a and 5b installed beside the. Reference numerals 6 and 7 denote train identification labels attached to the train cars. Among them, the train identification label 6 is attached to the last car 4 and the train identification label 7 is attached to the first car 8.

The traveling direction 3 of the train 1 is detected by a train identification label 7 attached to the first car 8 and a train identification label 6 attached to the last car 4. Also, if a specific train is used for the train identification labels 6 and 7, the type of the train can be identified.

Reference numeral 9 denotes an amplifier, and the infrared sensors 5a and 5a
b, and output signals from the infrared sensors 5a, 5b are sent to the monitoring center 1 via the amplifier 9.
0 is transmitted.

Reference numeral 11 denotes a microprocessor in the monitoring center 10, which receives signals from the infrared sensors 5a and 5b (hereinafter referred to as "passing information signals") and calculates the current position of the train and the opening / closing time of the circuit breaker. Then, the calculation result is transmitted to a railroad crossing warning display device 9 described later.

In the railroad crossing warning display device having the above-described configuration, when the leading vehicle 8 of the train 1 passes through the infrared sensor 5, the infrared sensor 5a detects the train identification label 7 and the passing information signal, which is the detection output, is monitored. Center 1
Sent to 0.

At the monitoring center 10, the microprocessor 11 calculates the current position of the train first. When the train 1 further advances, the last car 4
a, the infrared sensor 5a detects the train identification label 6 and sends a passage information signal as a detection output to the monitoring center 10, where the microprocessor 11
Calculates the speed of the train 1.

Here, the microprocessor 11 determines the waiting time for the railroad crossing (the time when the circuit breaker is closed), that is, the time from when the train 1 reaches the railroad crossing to when it crosses the railroad crossing, based on the current position and speed of the train 1. Is calculated, and the calculation result is transferred to and displayed on a railroad crossing warning display device to be described later, and at the same time, for example, an announcement to that effect is made on a speaker to be described later, "Please wait 5 minutes until the circuit breaker opens."

FIG. 2 shows the principle in the case where the track is a single track, and is a front view of the state where the rearmost vehicle 4 is passing through the infrared sensor 5a as viewed from the rearmost part.

In FIG. 2, the infrared sensor 5a on the right side (with respect to FIG. 2) and the train identification label 6 are, for example, dedicated to the up train, and the infrared sensor 5a on the left side (with respect to FIG. 2). If the train identification label 6 is dedicated to, for example, a down train, an embodiment in which bidirectional identification is possible even with a single line is shown.

Next, an embodiment of a railroad crossing warning display device according to the present invention will be described with reference to FIGS.

FIG. 3 is a front view of the level crossing alarm display device 9 according to the present invention, which is standing at a level crossing.

In FIG. 1, reference numeral 12 denotes a level-crossing warning display device according to the present invention, and a level-crossing information display plate 13 and a speaker 14 are attached to the level crossing warning display device 12.

The railroad crossing information display panel 13 is, for example, an LED display, and displays the current position of the train and the open / close time of the circuit breaker. The speaker 14 also works in conjunction with the railroad crossing information display panel 13 to announce the current position of the train, the opening / closing time of the circuit breaker, and the like to measure the safety of blind pedestrians.

FIG. 3 shows a state in which the circuit breaker 23 is closed.

FIG. 4 is a front view showing an embodiment of the railroad crossing information display plate 13, showing a waiting time display section 15 for displaying a waiting time from when the circuit breaker is closed to when it is opened, and when the circuit breaker is open. It comprises a railroad crossing time display section 16 for displaying the time and a train position display section 17 for showing the current position of the train.

The current train position display section 17 indicates the level crossing position 1
For example, the distance from the railroad crossing at a distance of 500 meters is shown with the center at 8, and the current position of three trains is displayed on the LED display 19.

FIG. 5 is a top view showing the state of installation of the infrared sensors. In FIG. 5, a1 to a4 denote infrared sensors for detecting up-trains.
Numerals 4 are installed at two locations, two at a certain interval, on the left and right of the crossing crossing road 20 and outside the up track 21.
In addition, b1 to b4 are infrared sensors for detecting a down train, and two infrared sensors are provided at four locations on the left and right sides of the crossing crossing road 20 and outside the down track as in the case of the up train.

FIG. 6 shows infrared sensors a1 to a3 and b1.
B3 (FIG. 5) is a time chart showing the ON / OFF state of each of the train identification labels for up and down trains.
3 also indicates that the infrared sensors b1 to b3 have detected the passing of the trains for downing, respectively, and the descending train is approaching the crossing before the waiting time for the crossing due to passing of the uptrain has passed. , Indicating that the vehicle has entered the waiting time for a down train.

In the ON state of the time chart, the infrared sensors a1 to a3 and b1 to b3 are the identification labels 6 and 7.
(FIG. 1) is detected.

Next, the operation of the above-mentioned railroad crossing warning display device of the present invention will be described in detail with reference to FIGS. 5 and 6. In FIG.
When a1 detects the train identification label 7 attached to the leading car 8 of the train 1 (FIG. 1), it closes the circuit breaker 23, and at the same time, the detection signal is sent via the amplifier 9 (FIG. 1) to the monitoring center 10 (FIG. 1). Transmitted to 1). At the monitoring center 10, the infrared sensor a1 is controlled by the microprocessor.
The waiting time at the railroad crossing is calculated based on the passing information signal sent from the company.

At this time, the microprocessor 11 also controls the down train approaching the railroad crossing and the subsequent up train.
(Fig. 1) confirms the position and speed, and does the time until the down train and the subsequent up train reach the railroad crossing (railway crossing arrival time) overlap with the waiting time of the first train 1 (Fig. 1)? Then, a total of the railroad crossing waiting time is calculated. That is, before the up train 1 passes the infrared sensor a3 (detects the train identification label of the last vehicle 4), the down train reaches the infrared sensor b1 (the train identification label 7 attached to the leading vehicle of the down train). Is detected), the waiting time d (FIG. 6) of the descending train continues after the waiting time C (FIG. 6) of the ascending train ends, so that the descending train passes through the infrared sensor b3, that is, The circuit breaker 23 remains closed until the infrared sensor 3 detects the train identification label 6 (FIG. 1) attached to the last vehicle 4 (FIG. 1) of the down train.

The waiting time at the monitoring center 10 (FIG. 1) is transmitted to the level-crossing warning display device 12 (FIG. 3), and the level-crossing information display panel 13 (FIG. 3) attached to the level crossing warning display device 12. The waiting time is displayed as "10" minutes, for example, as shown in FIG. 4, and the speaker 11 (FIG. 3) also displays, for example, "The circuit breaker will not open for the next 10 minutes." Announce.

When the waiting time of 10 minutes elapses, the waiting time display section 15 of the railroad crossing information display board 13 displays "0" and the circuit breaker 23 (FIG. 5) is opened.

Next, the display of the level crossing information display plate 13 is changed to the level at which the circuit breaker 23 (FIG. 5) is open, for example, "5" minutes on the level crossing open time display section 16 (FIG. 4). At the same time, an announcement is made on the speaker 11 (FIG. 3).

On the other hand, the current position of the train approaching the railroad crossing is displayed on the train position display section 17 (FIG. 4) of the railroad crossing information display board 13 by lighting the lighting lamp 19, so that the traverser can start the next train from the next train. You can easily check where you are coming.

The display of the level crossing time is also performed by the monitoring center 10 (FIG. 1) which calculates the time when the next train is approaching the infrared sensor a1 or b1. 12 (FIG. 3)
Since it is the same as the case of the waiting time display described above, the description is omitted.

In the above embodiment, the case of a double track has been described. However, in the case of a single track, for example, one of an up and a down approach is entered. Therefore, taking the up line 21 shown in FIG. 5 as an example. When the train is detected by each of the infrared sensors a1 and a4, the circuit breaker 23 (FIG. 5) may be opened and closed.

[0038]

According to the present invention described above, a pedestrian crossing such as a car or a pedestrian can accurately grasp the waiting time and the traversing time of a railroad crossing. By taking measures such as detours, time can be saved, and since the waiting time is clearly known, it is not irritating and good for mental health.

Also, a large vehicle having a relatively low traveling speed, an elderly person, a disabled person, etc., crosses quickly or stops crossing even when the breaker 23 (FIG. 5) is open for a short time. Therefore, it is possible to eliminate many accidents and injuries in the railroad crossings, and to secure the safety of the life of the crosser.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle of train detection according to the present invention.

FIG. 2 is a principle diagram of up-down bidirectional detection in the case of a single line according to the present invention.

FIG. 3 is a front view showing a state in which one embodiment of a level crossing warning display device according to the present invention is installed on both sides of a level crossing.

FIG. 4 is a front view showing an embodiment of a railroad crossing information display panel according to the present invention.

FIG. 5 is an explanatory diagram showing a state in which the railroad crossing warning display device according to the present invention detects an up / down train.

FIG. 6 is a time chart illustrating a detection state of the infrared sensor in FIG. 5;

[Explanation of symbols]

 1 ………… Train 2 …………… Track 4 ……………… Last car 5a, 5b ……… Infrared sensor 6, 7 ……… Train identification label 8… ……………………………………………………………………………………………………………………………………………………………… ···················································································································································································· … Railroad crossing information display board 14… Speaker 15… Railroad crossing waiting time display section 16 Railroad crossing open time display section 17 ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… according to the present invention Display section 18 Railroad crossing position of train current position display section 19 Current position display lamp of train 20 Railroad crossing road 21 Crossing track 22 …………… Down line 23 …………… Circuit breaker a1 to a4 ……… Infrared rays for up train Nsa b1 ~b4 ......... down train for infrared sensor

Claims (6)

[Claims] 1. An infrared sensor installed beside a track, a train identification label attached to a train to be detected by the infrared sensor, and a train receiving an output signal from the infrared sensor detecting the train identification label. And a microprocessor for calculating the current position and speed of the circuit breaker and calculating the opening / closing time of the circuit breaker from the calculation results. 2. The level crossing alarm display device according to claim 1, further comprising a speaker for announcing information from the microprocessor. 3. The railroad crossing information display panel according to claim 2, further comprising a railroad crossing information display panel comprising at least one of a railroad crossing waiting time display section and a railroad crossing open time display section for displaying information from the microprocessor. Alarm display. 4. The railroad crossing warning display device according to claim 3, wherein the railroad crossing information display board further includes a train position display section for sequentially displaying a current position of the train. 5. The railroad crossing warning display device according to claim 1, wherein the train identification label can identify a type of the train. 6. The railroad crossing warning display device according to claim 1, wherein one or a plurality of said infrared sensors are installed on each side of each of the ascending and descending tracks.