JP2012096705A - Device for announcing start of railroad crossing alarm, and railroad crossing security device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure safety of a pedestrian such as an aged person who needs much more time for walking than a normal pedestrian without extending a period from the start of the railroad crossing alarm to the lowering of a crossing bar.SOLUTION: A device 7 for announcing the start of the railroad crossing alarm gives advance notice that a railroad crossing alarm 4 sounds, at a predetermined time before a railroad crossing control device 6 causes the railroad crossing alarm 4 to sound. A pedestrian such as an aged person who needs much more time for walking can postpone crossing a railroad crossing road 3 by alarm start announcement display, and can be prevented from being left in the railroad crossing road 3 when the bar of a railroad crossing 5 is lowered, and the safety of the pedestrian can be improved.

Description

  The present invention relates to a railroad crossing blocking alarm start warning device and a railroad crossing safety device for notifying that a railroad crossing road is cut off, and particularly to the safety of a pedestrian such as an elderly person who takes time to walk.

  The railroad crossing control system detects when a train approaches the railroad crossing and sounds a railroad crossing alarm, then lowers the barrier to cut off the railroad crossing and waits for the train to pass. When it detects that the train has passed, the barrier fence is raised to release the railroad crossing.

  The time from when the railroad crossing alarm is sounded until the barrier is lowered is determined on the assumption that a healthy pedestrian can travel at normal walking speed. As a sensor for detecting a train, a railroad crossing controller and a track circuit are generally used. Also, the time setting control until the railroad crossing alarm sounds and the barrier rod is lowered is performed by a time relay.

  FIG. 4 shows a general configuration of a conventional level crossing control device. A level crossing control device for controlling the operation of a level crossing alarm 4 and a level crossing breaker 5 provided on the level crossing 3 of the track 2 includes a closed-circuit type crossing controller S1, an open-circuit type crossing controller S2, and a transceiver 8. And a transceiver 9 and a crossing control unit 10. The closed-circuit type railroad crossing controller S1 is provided for train detection at an alarm start point in front of the railroad crossing 3 by an appropriate distance, and the open-circuit type railroad crossing controller S2 is provided for a train separated from the railroad crossing 3 by a predetermined distance. It is provided for train detection at the alarm stop point on the advancing side. The transmitter / receiver 8 supplies electric power from the level crossing control unit 10 to the level crossing control unit S1 provided at the alarm start point, and outputs a train detection signal from the level crossing control unit S1 to the level crossing control unit 10. The transceiver 9 supplies electric power from the level crossing control unit 10 to the level crossing control unit S2 provided at the alarm end point, and outputs a train detection signal from the level crossing control unit S2 to the level crossing control unit 10. The level crossing control unit 10 inputs train detection signals output from the level crossing control S1 and the level crossing control S2 and output via the transceivers 8 and 9, and controls the operations of the level crossing alarm 4 and the level crossing breaker 5. .

  Processing when the crossing control unit 10 controls the operation of the crossing alarm 4 and the crossing breaker 5 will be described with reference to the alarm timing chart of FIG.

  When the train 1 enters the control section of the crossing controller S1 provided at the alarm start point, the crossing controller S1 outputs a train entry signal to the crossing control unit 10 via the transceiver 8. When the train crossing control unit 10 receives the train approach signal from the crossing controller S1, the crossing control unit 10 sounds the level crossing alarm 4 to clarify that the train 1 exists in the warning section. After the level crossing alarm 4 is sounded, when a preset time T1 elapses, the level crossing control unit 10 drives the level crossing breaker 5 to lower the barrier bar at a constant lowering time T2. The train 1 arrives at the railroad crossing 3 when a predetermined time T3 has elapsed since the descent of the railroad crossing barrier 5 is completed. When this train 1 passes through the railroad crossing 3 and enters the control section of the railroad crossing controller S2 provided at the warning end point, the railroad crossing controller S2 outputs a train approach signal to the railroad crossing control unit 10 via the transceiver 9. . The level crossing control unit 10 stops the ringing of the level crossing alarm 4 when the train approach signal from the level crossing controller S2 is input, and operates the level crossing breaker 5 to raise the barrier bar. Times T1, T2 and T3 in this level crossing control are defined by the railway operator.

  The alarm time T4 for sounding the railroad crossing alarm 4 before the train 1 arrives at the railroad crossing 3 depends on the number of lines crossing the railroad crossing 3 and the interruption method, and the alarm time T4 is determined with a sufficient margin. When the time T4 is determined, the distance from the railroad crossing 3 for detecting the train 1 is calculated from the product of the maximum train speed and the warning time T4, and the railroad crossing for the alarm start point is located at a position more than that distance from the railroad crossing 3 A controller S1 is provided.

  In order to clarify the train approach state from when the train 1 is detected by the railroad crossing controller S1 for the alarm start point until the train 1 arrives at the railroad crossing 3, the train approach display device disclosed in Patent Document 1 is In addition, a plurality of train detectors are provided between the alarm start point and the railroad crossing road 3, the train detector provided at the alarm start point detects the train 1 and sounds the railroad crossing alarm device 4 and the railroad crossing alarm device 4 is provided. Every time the train 1 is detected by the train detector provided between the alarm start point and the railroad crossing 3 and the display size or display position of the display is changed, it is indicated that the train 1 has approached the display. The train approaching state after the alarm 4 is sounded is displayed.

  However, in such a level crossing control, it is not known when the level crossing alarm 4 sounds and the barrier fence descends, and the level crossing alarm 4 sounds after the pedestrian enters the level crossing 3 without the alarm sounding. It happens. In such a case, it is safe for pedestrians to turn back, but most pedestrians are in a hurry to cross. For this reason, for pedestrians such as elderly people who require a longer time for walking than healthy pedestrians, the level crossing road 3 is used after the level crossing alarm 4 starts to ring and before the level crossing barrier 5 starts to descend the barrier. It becomes impossible to cross and be trapped inside the railroad crossing. As the number of such pedestrians increases as we enter an aging society, it will be a big society if a barrier fence descends on the way of crossing the railroad crossing 3 and is trapped inside the railroad crossing and encounters a car accident. It can be a problem. Therefore, a countermeasure for preventing such an accident is desired.

  As a countermeasure, for example, it may be possible to lengthen the time T1 from when the alarm starts to sound until the barrier rod starts descending by about 50%. However, a vehicle driver or a healthy pedestrian passing through the railroad crossing 3 For this reason, it takes a long time to stop before the railroad crossing 3 and wait for the train 1 to pass, which causes a traffic jam or a level crossing without opening.

  The present invention solves such a problem, and does not lengthen the time T1 from when the railroad crossing alarm starts to ring until the barrier rod descends, and it requires a longer time for walking than a normal pedestrian. It is an object of the present invention to provide a railroad crossing cutoff alarm start warning device and a railroad crossing safety device that can ensure the safety of a pedestrian such as a person.

  The railroad crossing interruption alarm start warning device of the present invention has a train detection means for warning start warning, a warning start warning control means and a warning display means, and the train detection means for warning start warning sounds a railroad crossing alarm. For detecting a train at a predetermined distance on the train approach side from a train detection means provided at the alarm start point for the alarm start notice control means, the alarm start notice control means is a train detection means for the alarm start notice When the train is detected in, the warning start notice display signal is output to the notice display means, and when the crossing alarm is started, the warning start notice display signal output to the notice display means is stopped, The notice display means displays the start notice of a crossing warning while the alarm start notice display signal is output from the alarm start notice control means.

  The train detection means for warning start warning is determined by a distance from the train detection means provided at the warning start point according to a preset warning display time and the fastest train speed of the passing train, and the warning start warning control means is The output start time of the warning start notice display signal is determined according to the train type condition or the train speed condition input from the outside.

  Further, the alarm start notice control means has a failure detection means for detecting a failure of the alarm start notice control means, and when the failure detection means detects a failure, the notice display unit displays a failure. Features.

  A crossing safety device of the present invention is a crossing safety device having a crossing control device for controlling the operation of a crossing alarm and a crossing breaker provided on a railroad crossing road on which a train travels, and a crossing cutoff alarm start notification device. The crossing control device has a train detection means for starting a crossing control, a train detection means for finishing the crossing control, and a crossing control means. The train detection means for starting the crossing control is a predetermined train approaching side from the crossing road. Provided for train detection at the alarm start point separated by a distance, the train detection means for ending the crossing control is provided for train detection at the alarm stop point on the advancing side of the train separated by a predetermined distance from the railroad crossing, The crossing control means inputs train detection signals output from the train detection means for starting the crossing control and the train detection means for ending the crossing control, and controls the operations of the crossing alarm and the crossing breaker. A warning control signal is output to the railroad crossing cutoff alarm start warning device, and the railroad crossing cutoff warning start warning device has train detection means for warning start warning, warning start warning control means, and warning display means, and the warning start warning The train detection means is provided for train detection at a position separated by a predetermined distance on the train approach side from the alarm start point provided with the train detection means for starting the railroad crossing control. Outputs a warning start notice display signal to the notice display means when a train is detected by the train detection means for warning start notice, and outputs to the notice display means when a warning control signal is input from the level crossing control means. The warning start warning display signal is stopped, and the warning display means opens the railroad crossing warning while the warning start warning display signal is output from the warning start warning control means. And performing the advance notice display.

  The train detection means for warning start notice of the railroad crossing safety device is determined by a distance from the train detection means provided at the warning start point according to a preset notice display time and the fastest train speed of the passing train, and the warning The start notice control means determines the output start time of the alarm start notice display signal according to a train type condition or a train speed condition inputted from the outside.

  Further, the alarm start notice control means has a failure detection means for detecting a failure of the alarm start notice control means, and when the failure detection means detects a failure, the notice display unit displays a failure. Features.

  Since this invention notifies pedestrians that the crossing alarm is sounded for a predetermined time before the crossing alarm is sounded, the pedestrians, etc. will sound and the level crossing barrier will drop. The time to start can be estimated, and the safety of pedestrians such as elderly people who require a longer time for walking than healthy pedestrians can be achieved.

  In addition, since it is not necessary to lengthen the time from when the railroad crossing alarm starts to ring until the crossing barrier of the railroad crossing barrier starts to descend, it is possible to prevent a traffic jam or a level crossing without opening.

It is a lineblock diagram of a level crossing security device of this invention. It is a timing chart which shows processing of warning notice control and level crossing control. It is a change characteristic figure of travel time when drive | working a fixed distance by the maximum train speed and another train speed. It is a block diagram of the conventional level crossing control apparatus. It is a timing chart which shows the process of the conventional level crossing control.

  FIG. 1 is a configuration diagram of a railroad crossing safety device according to the present invention. As shown in the figure, the railroad crossing safety device includes a railroad crossing control device 6 that controls the operation of the railroad crossing alarm device 4 and the railroad crossing barrier 5 provided on the railroad crossing 3 of the track 2 on which the train 1 travels, and a railroad crossing cutoff alarm start notice. It has a device 7. The crossing control device 6 includes a closed-circuit type crossing controller S1, an open-circuit type crossing controller S2, a transmitter / receiver 8, a transmitter / receiver 9, and a crossing control unit 10. The closed-circuit type railroad crossing controller S1 is provided for detecting a train at an alarm start point separated from the railroad crossing 3 by an appropriate distance on the train entrance side, and the open-circuit type railroad crossing controller S2 is provided a predetermined distance from the railroad crossing road 3. It is provided for train detection at the alarm stop point on the far side of a remote train. The transmitter / receiver 8 supplies electric power from the level crossing control unit 10 to the level crossing control unit S1 provided at the alarm start point, and outputs a train detection signal from the level crossing control unit S1 to the level crossing control unit 10. The transceiver 9 supplies electric power from the level crossing control unit 10 to the level crossing control element S3 provided at the alarm end point, and outputs a train detection signal from the level crossing control element S3 to the level crossing control unit 10. The level crossing control unit 10 inputs the train detection signal output from the level crossing control S1 and the level crossing control S2 and transmitted through the transceivers 8 and 9, and controls the operations of the level crossing alarm 4 and the level crossing breaker 5. An alarm control signal is output to the level crossing cutoff alarm start notification device 7. This level crossing control unit 10 includes a relay for a notice display end having a relay contact that is in an operation state when the level crossing alarm device 4 is not alarm-controlled, and is in a recovery state when alarm control is performed, for example. The alarm control signal to be output to is output at the relay contact of the relay for end of the notice display.

  The railroad crossing interruption alarm start notification device 7 includes a closed-circuit type railroad crossing controller S3 similar to the railroad crossing controller S1 provided at the alarm start point, a transmitter / receiver 11, an alarm start notification control unit 12, and a notification display unit 13. The closed-circuit type railroad crossing controller S3 is provided for train detection at a notice display point that is separated from the railroad crossing controller S1 provided at the alarm start point by a predetermined distance on the train entry side. The transmitter / receiver 11 supplies electric power from the warning start notice control unit 12 to the crossing control element S3 provided at the notice start point, and outputs a train detection signal from the crossing control element S3 to the alarm start notice control unit 12. The train detection signal output from the transceiver 11 is, for example, a train detection relay having a relay contact that is in an operating state when the train 1 is not present in the control section of the railroad crossing controller S3 and is in a restored state when the train 1 is present. To output. The alarm start notice control unit 12 inputs a train detection signal output from the railroad crossing controller S3 via the transmitter / receiver 11, and inputs the train detection signal and the train type condition or train speed condition and railroad crossing control unit input from an external device. Alarm warning display control for the warning display unit 13 is performed in accordance with the warning control signal output from 10. The warning display unit 13 performs warning warning display such as “I will start warning soon” by the warning warning display control of the warning start warning control unit 12. A warning control relay 12 having a relay contact that is in an operating state when a train detection signal is not input and is in a restored state when a train detection signal is input, When the start notice control unit 12 is not broken, it has a failure detection relay having a relay contact that is in an operating state and is in a restored state when broken.

  The processing when the warning notice control and the level crossing control are performed by this level crossing safety device will be described with reference to the timing chart of FIG.

  When a train enters the control section of the railroad crossing controller S3 provided at the notice display point and detects the train with the railroad crossing controller S3, the transmitter / receiver 11 changes the relay contact of the train detection relay from the operating state to the restored state and sends a train detection signal. Output to the alarm start notice control unit 12. The notice display point provided with this level crossing controller 3 is, for example, the notice display time T5 with reference to the time T1 from the start of the sounding of the level crossing alarm 4 to the start of the lowering of the leveling barrier 5 If the time T1 is set to 1/2, the position of the distance L = {(Va · T1) / 2} (m) from the alarm start point by the fastest train speed Va (m / sec) of the train 1 traveling on the track 2 become. That is, the notice display time T5 is a time during which the train 1 having the fastest train speed Va travels the distance L between the notice display point and the alarm start point.

  When a train detection signal is input from the transmitter / receiver 11, the alarm start notification control unit 12 determines the output start time of the alarm start notification display signal according to the train type condition or the train speed condition input from the outside. Since the warning display time T5 of the warning start warning display signal is determined based on the fastest train speed Va of the train 1, as shown in the travel time change characteristic diagram when traveling the distance L in FIG. The time Ta during which the train 1 with the fastest train speed Va travels the distance L between the display point and the alarm start point coincides with the notice display time T5, and the distance L between the notice display point and the alarm start point is the fastest train speed Va. The time Tb during which the train 1 with the slower train speed Vb travels is longer than the time Ta during which the train 1 with the fastest train speed Va travels, ie, the notice display time T5. Therefore, when the train 1 having the fastest train speed Va travels, the warning start notice control unit 12 outputs a warning start notice display signal to the notice display unit 13 as soon as a train detection signal is input from the transceiver 11, and from the fastest train speed Va. When the train 1 having a slow train speed Vb travels, a warning start notice display signal is sent to the notice display section 13 after a train detection signal is inputted from the transmitter / receiver 11 and delayed by ΔT = (Tb−Ta) time. Output. By making the notice display time T5 constant in this way, inconveniences such as pedestrians caused by extending the notice display time when the train 1 having a slow train speed Vb travels can be solved.

  When the alarm start notice control unit 12 outputs an alarm start notice display signal, for example, the relay contact of the built-in notice control relay is changed from the operating state to the restored state, and the warning display unit 13 is alerted via the operation contact of the failure detection relay. A start notice display signal is output. When the warning display unit 13 receives the warning start warning display signal, the warning display unit 13 displays a warning start warning message such as “alarm will start soon”. When the warning start notice display is performed, the notice display unit 13 may blink the display to make it easy to call attention. Further, when a failure has occurred in the alarm start notice control unit 12, the failure detection relay is set in a recovery state, and the display on the notice display unit 13 is controlled to display a failure such as “device failure” via the recovery contact.

  In this state, when the train 1 enters the control section of the railroad crossing controller S1 provided at the alarm start point of the railroad crossing control device 6, the railroad crossing controller S1 provided at the alarm start point is sent to the railroad crossing control unit 10 via the transceiver 8. A train approach signal is output. When the train crossing control unit 10 receives the train approach signal from the crossing controller S1, the rail crossing alarm 4 is sounded to clarify that the train 1 exists in the alarm section and to display a warning from the relay contact of the warning display end relay. An end signal is output to the alarm start notice control unit 12. When the warning start notice control unit 12 inputs a notice display end signal, the warning start notice control unit 12 stops the display of the notice display unit 13.

  After the level crossing control unit 10 of the level crossing control device 6 rings the level crossing alarm 4, when the preset time T1 has elapsed, the level crossing control unit 10 drives the level crossing breaker 5 to turn off the barrier rod for a certain descent time T2. To descend. The train 1 arrives at the railroad crossing 3 when a predetermined time T3 has elapsed since the completion of the crossing of the rail crossing barrier 5 is completed. When this train 1 passes through the railroad crossing 3 and enters the control section of the railroad crossing controller S2 provided at the warning end point, the railroad crossing controller S2 outputs a train approach signal to the railroad crossing control unit 10 via the transceiver 9. . The level crossing control unit 10 stops the ringing of the level crossing alarm 4 when the train approach signal from the level crossing controller S2 is input, and operates the level crossing breaker 5 to raise the barrier bar.

  In this way, by giving a notice that the railroad crossing alarm 4 is sounded by the railroad crossing interruption alarm start warning device 7 from a predetermined time before the railroad crossing control device 6 sounds the railroad crossing alarm 4, an elderly person who takes a long time to walk, etc. Since the pedestrian can forego crossing the railroad crossing 3 by the warning start warning display, the pedestrian can avoid being trapped in the railroad crossing 3 when the barrier bar of the railroad crossing barrier 5 is lowered. The safety of the can be further increased.

1; train, 2; track, 3; railroad crossing, 4; railroad crossing alarm, 5; railroad crossing breaker,
6; Railroad crossing control device, 7; Railroad crossing cutoff alarm start warning device, 8; Transceiver, 9; Transceiver,
10; Railroad crossing control unit, 11; Transceiver, 12; Alarm start notice control part, 13; Notice display part,
S1; closed circuit type crossing controller; S2; open circuit type crossing controller;
S3: Closed circuit type railroad crossing controller.

JP-A-8-58589

Claims (6)

Train detection means for warning start warning, warning start warning control means and warning display means,
The train detection means for warning start warning is provided for train detection at a position separated by a predetermined distance on the train entry side from the train detection means provided at the alarm start point for ringing the railroad crossing alarm,
The alarm start notice control means outputs an alarm start notice display signal to the notice display means when a train is detected by the train detection means for warning start notice, and the notice display means when the crossing alarm starts to sound. Stops outputting the alarm start warning display signal that is output to
The said notice display means performs the start notice display of a level crossing alarm while the alarm start notice display signal is output from the said alarm start notice control means. The train detection means for warning start warning is determined by the preset warning display time and the distance from the train detection means provided at the warning start point by the fastest train speed of the passing train,
2. The railroad crossing cutoff alarm start warning device according to claim 1, wherein the warning start warning control means determines an output start time of a warning start warning display signal according to a train type condition or a train speed condition inputted from outside.   The alarm start notice control means has a failure detection means for detecting a failure of the alarm start notice control means, and when the failure is detected by the failure detection means, the notice display section displays a failure. The crossing cutoff alarm start warning device according to claim 1 or 2. A railroad crossing safety device having a railroad crossing control device for controlling the operation of a railroad crossing alarm and a railroad crossing breaker provided on a railroad crossing road on which a train travels,
The railroad crossing control device has a train detection means for starting a crossing control, a train detection means and a crossing control means for ending the crossing control,
The train detection means for starting the railroad crossing control is provided for detecting a train at an alarm start point separated from the railroad crossing by a predetermined distance on the train entrance side, and the train detection means for ending the crossing control is separated by a predetermined distance from the railroad crossing road. The railroad crossing control means inputs a train detection signal output from the train detection means for starting the railroad crossing control and the train detection means for ending the railroad crossing control. To control the operation of the level crossing alarm and the level crossing breaker and output an alarm control signal to the level crossing cutoff alarm start warning device,
The railroad crossing interruption alarm start warning device has a train detection means for warning start warning, a warning start warning control means and a warning display means,
The train detection means for warning start warning is provided for train detection at a position separated by a predetermined distance on the train entry side from the warning start point provided with the train detection means for starting railroad crossing control, The start notice control means outputs a warning start notice display signal to the notice display means when the train is detected by the train detection means for warning start notice, and when the alarm control signal is input from the level crossing control means, the notice notice The output of the warning start notice display signal output to the display means is stopped, and the notice display means displays the start notice display of the railroad crossing warning while the alarm start notice display signal is output from the alarm start notice control means. A railroad crossing security device characterized by performing. The train detection means for warning start warning is determined by the preset warning display time and the distance from the train detection means provided at the warning start point by the fastest train speed of the passing train,
The railroad crossing safety device according to claim 4, wherein the alarm start notice control means determines an output start time of an alarm start notice display signal according to a train type condition or a train speed condition inputted from outside.   The alarm start notice control means has a failure detection means for detecting a failure of the alarm start notice control means, and when the failure is detected by the failure detection means, the notice display section displays a failure. The crossing safety device according to claim 4 or 5.

Images