JPH07137635A - Railroad crossing control device - Google Patents

Abstract

PURPOSE:To properly control crossing control time at the time when a succeeding train is stopped in regard with a preceding train. CONSTITUTION:A crossing alarming territory L includes an off-track stopping territory L1. A first train detection circuit 11 detects existence of a train 7 in the crossing alarming territory L1 and outputs a first train detection signal S11. A second train detection circuit 12 detects that the train 7 stops in the off-track stopping territory L1 and outputs a second train detection signal S12. A control circuit 2 outputs a crossing control signal S21 at the time when the first train detection signal S11 shows existence of a train, and output of the crossing control signal S21 is temporarily stopped at the time when the first train detection signal S11 shows existence of a train and the second train detection signal S12 shows stopping of a train.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railroad crossing control device,
More specifically, the outside stop section is provided in the level crossing warning section provided behind the track of the track as viewed from the level crossing, and when the train is stopped within the outside stop section, the output of the level crossing control signal is temporarily stopped, This is related to the technology to extend the crossing open time.

[0002]

2. Description of the Related Art A conventional railroad crossing control device provides an alarm start point in front of a railroad crossing and an alarm end point ahead of the railroad crossing so that a warning is issued from when the train enters the alarm start point until it reaches the alarm end point. It outputs a level crossing control signal. Such a crossing control device is "Signal" (written by Hiroshi Yoshimura and Saburo Yoshikoshi, published by Koyusha)
And electrical series and signal series No. for orbit engineers
6 "Level crossing security device" (published by the Japan Orbital Electrical Engineering Association). Further, Japanese Patent Application Laid-Open No. 3-57769 discloses a level crossing time control device that optimizes the level crossing control time.

[0003]

However, the conventional level crossing control device has the following problems. (A) Since the railroad crossing control signal is output from when the train enters the alarm start point to when it reaches the alarm end point, the railroad crossing control time becomes long when the train stops within the railroad crossing warning section. In particular, at railroad crossings near stations, trailing trains often stop before the railroad crossing due to the relationship with the preceding train, which results in traffic congestion as the railroad crossing does not open. (B) When a train crosses a railroad crossing at high speed in the fixed-time railroad crossing control that delays the output of the railroad crossing control signal by predicting the arrival time of the train to the railroad crossing from the traveling speed when the train enters the alarm start point This is effective because the crossing control time is shortened. However, when the preceding train is stopped at the station, the railroad crossing control device near the station will stop the succeeding train before the railroad crossing, so it will not be possible to determine the position of the following train by the delay time alone. The level crossing control time is shortened by the time, and the level crossing control time is still long.

Therefore, an object of the present invention is to provide a railroad crossing control device capable of appropriately controlling the railroad crossing control time when the succeeding train is stopped in relation to the preceding train.

[0005]

In order to solve the above-mentioned problems, a railroad crossing control device according to the present invention includes a railroad crossing warning section, a train detection circuit, and a control circuit. It is provided at the rear of the track of the track including the road, and includes an outside stop section in the middle of the track, at least two train detection circuits are provided, and the first train detection circuit is the crossing warning. The first train detection signal is output by detecting the presence / absence of a train in the section, and the second train detection circuit detects that the train is stopped in the outside stop section and outputs the second train detection signal. The control circuit outputs a crossing control signal when the first train detection signal and the second train detection signal are input and the first train detection signal indicates that there is a train. Output, and the first train detection signal indicates that there is a train And said second train detection signal is to pause the output of the crossing control signal when a train stop.

[0006]

[Function] The railroad crossing warning section is provided behind the track of the railroad crossing including the railroad crossing, and the first train detection circuit detects the presence or absence of a train in the railroad crossing warning section to detect the first train detection signal. And the control circuit outputs a railroad crossing control signal when the first train detection signal indicates that the train exists, so when the train enters the railroad crossing warning section, the railroad crossing alarm is sounded and the railroad crossing barrier is lowered. .

The railroad crossing warning section includes an outside stop section on the way, and the second train detection circuit outputs a second train detection signal by detecting that the train is stopped in the outside stop section. When the preceding train is in the section ahead of the route adjacent to the level crossing warning section, the stop position of the following train can be clarified. Further, when the preceding train advances in the section ahead of the route and the succeeding train re-starts, it is possible to secure a level crossing control time corresponding to the distance between the level crossing and the outside stop section.
Therefore, the output of the level crossing control signal can be temporarily stopped.

The second train detection circuit detects that the train is stopped in the outside stop section and outputs a second train detection signal, and the control circuit detects that the first train detection signal is present.
Moreover, since the output of the level crossing control signal is temporarily stopped when the second train detection signal is the train stop, the output of the level crossing control signal is stopped after confirming the stop and stop position of the train.
Therefore, after ensuring the safety of the railroad crossing, open the railroad crossing,
It is possible to obtain a level crossing control time that can secure a level crossing control time even when the following train restarts, and can appropriately control the level crossing control time when the following train is stopped in relation to the preceding train.

The station section is provided in front of the route adjacent to the railroad crossing warning section, and the third train detection circuit is provided in the station section and detects the departure of the train (preceding train) stopped in the station section and The control circuit outputs the train detection signal of No. 3, and the control circuit releases the temporary stop of the output of the railroad crossing control signal when the third train detection signal is the train departure. Therefore, the outside stop section is provided near the railroad crossing. Even if the vehicle is hit, an appropriate level crossing control time can be secured. Therefore, even when the off-site stop section is provided near the railroad crossing and the trains are operated at close intervals, the appropriate railroad crossing control time can be secured.

The display device is provided on the level crossing, and indicates based on the display signal that the train is stopped in the outside stop section, and the control circuit displays when the output of the level control signal is temporarily stopped. Since the display signal is output to the railroad crossing, once the railroad crossing alarm is sounded, when the train crosses open outside the off-street section near the railroad crossing, the crossing is safe for passersby. It can give a feeling.

[0011]

1 is a block diagram showing the configuration of a railroad crossing control device according to the present invention. The railroad crossing control device uses the railroad crossing warning section L
And a train detection circuit 1 and a control circuit 2, and outputs a railroad crossing control signal S21 to the railroad crossing alarm device 3 or the railroad crossing breaker 4. Reference numeral 5 is a railroad crossing, 6 is a track, 7 is a train, and 8 is a platform of a station. Reference numeral 71 is a preceding train, and 72 is a following train.

The crossing warning section L is provided behind the track of the track 6 including the crossing road 5, and includes an outside stop section L1 on the way. Level crossing warning section L in the embodiment
Is composed of closed sections (1T, 2T, downlink 1T).

At least two train detection circuits 1 are provided. The first train detection circuit 11 has a railroad crossing warning section L.
The presence or absence of the train 7 in the train is detected to detect the first train detection signal S11.
Is output. The first train detection circuit 11 only needs to be able to detect that the train 7 has entered the railroad crossing warning section L and that the train 7 has advanced from the railroad crossing warning section L, and may be either a point detection type or a continuous detection type. Good. The embodiment is a continuous detection type.

Each of the closed sections (1T, 2T, downlink 1T) constitutes a track circuit (1T, 2T, downlink 1T),
The presence or absence of the train 7 in each closed section is detected.

Each of the track circuits (1T, 2T, down 1T) has a track relay (1TR, 2TR, down 1TR) (not shown), and the track relay of the track circuit where the train 7 is present drops (in a non-excitation state). Then the contacts are opened). For example, train 7 is a track circuit 1T
Track relay 1TR drops and contacts 1
TR1 is opened. Therefore, the contact (1TR1, 2TR
1 and down 1TR1) are connected in series to form an AND connection circuit, the AND connection circuit becomes non-conductive when the train 7 is on any track circuit, and the first train detection signal S11 with a train is obtained. To be Track circuit and track relay configurations are well known to those skilled in the art.

Although not shown, a loop coil may be spread over the entire railroad crossing warning section L so that train detection is performed based on the presence or absence of a transmission signal transmitted from the train 7. The first point detection type train detection circuit 11 is provided with railroad crossing controllers or axle detectors at the start point P1 and the end point P2 of the railroad crossing warning section L, detects the presence of the train when the train 7 enters the start point P1, and finishes the end point P2. Detects the absence of a train when you advance to. The level crossing controller is described in the above-mentioned "Signal" and the axle detector is described in detail in Japanese Patent Laid-Open No. 3-57769. The second train detection circuit 12 detects that the train 7 is stopped in the outside stop section L1 and outputs a second train detection signal S12. For example, the axle detectors are provided at intervals, the speed of the train 7 is calculated from the number and arrival time of a series of axles, and the stop of the train 7 is detected.

The control circuit 2 uses the first train detection signal S11.
And the second train detection signal S12 are input. The crossing control signal S21 is output when the first train detection signal S11 indicates the presence of a train. When the first train detection signal S11 indicates that a train exists and the second train detection signal S12 indicates that the train is stopped, the output of the level crossing control signal S21 is temporarily stopped.

As described above, the railroad crossing warning section L is provided behind the track of the track 6 including the railroad crossing 5, and the first train detection circuit 11 allows the train 7 in the railroad crossing warning section L to be provided. The presence or absence of the train is detected and the first train detection signal S11 is output, and the control circuit 2 outputs the railroad crossing control signal S21 when the first train detection signal S11 is present.
When enters the railroad crossing warning section L, the railroad crossing alarm device 3 is activated and the railroad crossing breaker 4 is lowered.

The railroad crossing warning section L is an outside stop section L1 on the way.
Therefore, the stop position of the succeeding train 72 can be clarified when the preceding train 71 is in a section (downhill 2T) in front of the route adjacent to the level crossing warning section L. Further, when the preceding train 71 advances in the section (downhill 2T) in front of the track adjacent to the level crossing warning section L and the subsequent train 72 restarts, the distance L2 between the level crossing 5 and the off-site stop section L1 is determined. The level control time can be secured. Therefore, the output of the level crossing control signal S21 can be temporarily stopped.

The second train detection circuit 12 is an outside stop section L
1 detects that the train 7 is stopped and outputs the second train detection signal S12, and the control circuit 2 has the first train detection signal S11 and the second train detection signal. S
Since the output of the railroad crossing control signal S21 is temporarily stopped when 12 is a train stop, the output of the railroad crossing control signal S21 is stopped after confirming the stop and the stop position of the train 7. Therefore, the level crossing control time can be secured even when the level crossing is opened after ensuring the safety of the level crossing and the succeeding train 72 restarts.
A railroad crossing control device that can appropriately control the railroad crossing control time when the succeeding train 72 is stopped in relation to the preceding train 71 is obtained.

FIG. 2 is a time chart showing the operation of the railroad crossing control device according to the present invention, and FIG. 3 is a conceptual diagram showing the operation of the railroad crossing control device in relation to the train. 2 and 3 will be briefly described with reference to the above operation. In the figure,
The same reference numerals as in FIG. State (a) shows the state immediately before the succeeding train 72 enters the railroad crossing warning section L when the preceding train 71 is in the section (downhill 2T). The traffic signal 81 is "red".

The state (b) shows the case where the succeeding train 72 enters the section 1T at the time t1. At this time, since the first train detection signal S11 is "present" for the train, the control circuit 2 outputs the level crossing control signal S21 and the level crossing alarm device 3 sounds.

The state (c) shows the case where the succeeding train 72 stops in the outside stop section L1 at the time t2. At this time, the first train detection signal S11 is "Yes" for the train,
Since the second train detection signal S12 is a train "stop",
The control circuit 2 suspends the output of the level crossing control signal S21,
Ringing alarm 3 stops ringing.

The state (d) shows the case where the preceding train 71 departs at the time t3 and advances into the section (downhill 2T). At this time, the traffic signal 81 becomes “yellow” and the succeeding train 72 restarts. When the traveling speed of the succeeding train 72 exceeds a predetermined speed, the second train detection signal S12 becomes a train "restart". The control circuit 2 releases the suspension of the level crossing control signal S21, and the level crossing alarm device 3 sounds.

The state (e) shows the state just before passing through the railroad crossing 5. The state (f) shows a case where the succeeding train 72 has advanced the section (downhill 1T) and entered the section (downhill 2T) at time t4. First train detection signal S11
Is no train, the control circuit 2 controls the level crossing control signal S
Stop 21. The traffic light 81 becomes "red".

The railroad crossing control apparatus of the embodiment shown in FIG. 1 includes a station section (downhill 2T) and a third train detection circuit 13. The station section (downhill 2T) is provided in front of the route adjacent to the railroad crossing warning section L. Third train detection circuit 13
Is prepared for the station section (downhill 2T), and the station section (downhill 2T
The departure of the train 7 stopped at T) is detected and a third train detection signal S13 is output. For example, by providing axle detectors at intervals, the train 7 can be determined from the number and arrival time of a series of axles.
, The departure of the train 7 is detected. Further, when the preceding train 71 departs, the traffic light 82 becomes a "blue" indication, so that the change of the traffic light 82 to a "blue" indication can be used as the third train detection signal S13. The control circuit 2 is the third
Railroad crossing control signal S21 when the third train detection signal S13 is a train "departure".
Cancels the output pausing.

In the above configuration, the station section (downhill 2T) is
It is provided in front of the route adjacent to the railroad crossing warning section L, and the third train detection circuit 13 is provided in the station section (downhill 2T),
Train 7 (preceding train 71) stopped in the station section (downhill 2T)
Detects the departure of the train and outputs the third train detection signal S13,
Since the control circuit 2 cancels the temporary stop of the output of the level crossing control signal S21 when the third train detection signal S13 is the train departure, the preceding train 71 departs and advances the section (downhill 2T). Since the time until the start of the crossing can be used as the crossing control time, an appropriate crossing control time can be secured even when the off-site stop section L1 is provided near the crossing 5. Therefore, even when the off-site stop section L1 is provided in the vicinity of the level crossing 3 and the operating intervals are shortened, an appropriate leveling control time can be secured.

FIG. 4 is a time chart showing the operation of the railroad crossing control device using the third train detection signal. In the figure, the same reference numerals as those in FIGS. 1 and 2 denote the same components. The operation up to time t2 is the same as the time chart shown in FIG. At time t21, the preceding train 71 departs. At this time, the third train detection signal S13
Is a train "departure", the control circuit 2 releases the suspension of the level crossing control signal S21, and the level crossing alarm device 3 sounds.
Therefore, after the preceding train 71 departs, the section
The time until advancing T), that is, the time from time t21 to time t3 can be used as the level crossing control time. The operation from time t3 to time t4 is also the same as the time chart shown in FIG. Therefore, take the crossing 3
It is possible to secure an appropriate railroad crossing control time even if the vehicle is installed near the vehicle and the operation interval is shortened.

The succeeding train 72 restarts after the "red" indication of the traffic signal 81 is released. The cancellation of the “red” indication of the traffic signal 81 is performed when the preceding train 71 has advanced the section (downhill 2T). Therefore, the section (downstream 2T) is narrow,
Moreover, when the outside stop section L1 is provided immediately before the railroad crossing 3 and the legal minimum railroad crossing warning time cannot be secured, the control circuit 2 responds to the train "departure" of the third train detection signal S13 and outputs the signal 81. By configuring so as to output a delay signal that delays the release of the "red" indication, the level crossing control can be performed while ensuring the legal minimum level crossing warning time.

Furthermore, the crossing control device of the embodiment shown in FIG.
It includes a display 9. The display 9 is provided on the railroad crossing 5 so that the train 7 stops outside the section L1 based on the display signal S22.
Display that the car is stopped. The control circuit 2 outputs the display signal S22 to the display 9 when the output of the level crossing control signal S21 is temporarily stopped, that is, from time t2 to time t21.

In the above-mentioned structure, the display 9 is provided on the railroad crossing 5 to display that the train 7 is stopped in the off-site stop section L1 based on the display signal S22, and the control circuit 2 causes the railroad crossing control signal. Since the display signal S22 is output to the display 9 while the output of S21 is temporarily stopped, the train 7 stops at the outside stop section L1 near the railroad crossing 5 after the railroad crossing alarm 3 is activated once. Even when the railroad crossing is open, it can give a feeling of security to passers-by.

FIG. 5 is a specific circuit diagram of the control circuit.
In the figure, reference numeral XR is an output relay and STPR is a control relay. Orbital relay contacts (1TR1, 2TR
1, down 1TR1) are connected in series to the output relay XR. When the output relay XR is de-energized, the output relay XR drops, the contact XR1 becomes non-conductive, and the crossing control device S21 outputs the crossing control signal S21 that causes the crossing alarm device 3 to sound and the crossing breaker 4 to descend.
The control relay STPR has a second train detection signal S12,
Third train detection signal S13 is input and contact point STPR1
Are connected in parallel to the contact 2TR1. Contact point STP when the second train detection signal S12 is "stop"
The contact STPR1 becomes non-conductive when R1 is conductive and the third train detection signal S13 is "departure" for the train.

The operation of the circuit will be described with reference to FIG. When the succeeding train 72 enters the track circuit 1T, the contact point 1T
R1 becomes non-conductive, the output relay XR falls, and the level crossing control signal S21 is output. Subsequent train 72 is track circuit 1T
And the track circuit 2T, the contact 1TR1 becomes conductive and the contact 2TR1 becomes non-conductive, and the level crossing control signal S21
Is maintained.

When the succeeding train 72 stops in the outside stop section, the control relay STPR operates and the contact point STPR1 becomes conductive. Therefore, the output relay XR has the contact 1TR1,
It is excited via the contact point STPR1 and the contact point (downward 1TR1), and the output of the level crossing control signal S21 is temporarily stopped. When the preceding train 71 departs the section (downhill 2T) and the third train detection signal S13 becomes the train "departure", the contact S of the control relay S
TPR1 becomes non-conductive, the output relay XR falls, and the temporary stop of the output of the level crossing control signal S21 is released. Subsequent train 72 enters track circuit 2TR and track circuit (down 1T)
Contact point 2TR1 becomes conductive and contacts (downlink 1TR
1) becomes non-conductive, and the level crossing control signal S21 is maintained.

When the succeeding train 72 advances in the track circuit (down 1T), the contact (down 1TR1) becomes conductive, the output relay XR is excited, and the railroad crossing control signal S21 stops. As a result, the time chart shown in FIG. 4 is obtained. The display signal S22 is given by a contact STPR2 (not shown) which is interlocked with the contact STPR1.

[0036]

As described above, according to the present invention, it is possible to provide a railroad crossing control device capable of appropriately controlling the railroad crossing control time when the succeeding train is stopped in relation to the preceding train.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a railroad crossing control device according to the present invention.

FIG. 2 is a time chart showing the operation of the railroad crossing control device according to the present invention.

FIG. 3 is a conceptual diagram showing an operation of a railroad crossing control device in relation to a train.

FIG. 4 is a time chart showing the operation of the railroad crossing control device using a third train detection signal.

FIG. 5 is a specific circuit diagram of a control circuit that constitutes the level crossing control device.

[Explanation of symbols]

 L Level crossing alarm section 1 Train detection circuit 11 First train detection circuit 12 Second train detection circuit 13 Third train detection circuit 2 Control circuit 3 Level crossing alarm 4 Level crossing gate 5 Level crossing 6 Track 7 Train 71 Preceding train 72 Subsequent trains 8 stations 81, 82 Traffic light 9 Display device S11 First train detection signal S12 Second train detection signal S13 Third train detection signal S21 Railroad crossing control signal S22 Display signal

Claims (3)

[Claims] 1. A railroad crossing control device that includes a railroad crossing warning section, a train detection circuit, and a control circuit, and outputs a railroad crossing control signal to a railroad crossing alarm device or a circuit breaker, wherein the railroad crossing warning section includes a railroad crossing. It is provided at the rear of the track of the track when viewed from the railroad crossing, and includes an off-site stop section on the way, at least two train detection circuits are provided, and the first train detection circuit is in the railroad crossing warning section. Detecting the presence or absence of a train and outputting a first train detection signal, and a second train detection circuit detecting that the train is stopped in the outside stop section and outputting a second train detection signal. The control circuit may include the first train detection signal and the second train detection signal.
And the first train detection signal is input, the railroad crossing control signal is output when the first train detection signal is a train present, and the first train detection signal is a train present, and the second train detection signal is output. A railroad crossing control device for temporarily stopping the output of the railroad crossing control signal when the train detection signal indicates that the train is stopped. 2. A station section and a third train detection circuit are included, the station section is provided in front of a route adjacent to the railroad crossing warning section, and the third train detection circuit is the station. It is provided in a section, detects departure of a train stopped in the station section, and outputs a third train detection signal, wherein the control circuit receives the third train detection signal,
The railroad crossing control device according to claim 1, wherein the suspension of the output of the railroad crossing control signal is released when the third train detection signal is a train departure. 3. A display device is provided, wherein the display device is provided at the railroad crossing, and displays that the train is stopped in the outside stop section based on a display signal. The level crossing control device according to claim 1 or 2, wherein the circuit outputs the display signal to the display while the output of the level crossing control signal is temporarily stopped.