JP2016013714A - Crossing gate control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optimize a behavior of a crossing gate without installing a speed meter in a vehicle.SOLUTION: A crossing gate control device 800 includes: the speed meter 200 installed in the ground to measure speed of a vehicle; and a control device 100 for controlling the crossing gate based on the speed measured by the speed meter. The speed meter 200 includes a first speed meter and a second speed meter mounted respectively to both sides of a rail track 600 while interposing a grade crossing therebetween. The first speed meter measures a speed of a railway train 500 moving ahead toward the grade crossing 600, while the second speed meter measures a speed of the railway train 500 moving away from the grade crossing 600.

Description

  The present invention relates to control of a circuit breaker.

When controlling a circuit breaker, it is common to determine whether or not a train has passed a predetermined point. For example, at a level crossing where the state of being interrupted due to overrun protection or a replacement vehicle such as a campus level crossing tends to last for a long time, the interrupted state may last for a long time even though there is no substantial danger (so-called "A railroad crossing without opening").
To avoid this problem, a speedometer is installed on each train to continuously measure the speed of the train, and the current speed of the train is transmitted from the train to the level crossing control device on the ground side. There is a technology to shorten the alarm time of the circuit breaker by operating the.

JP 2006-027312 A

In the method of Patent Document 1, all trains need to have a speedometer and a communication system. That is, it cannot be applied to a train that does not have a speedometer or the like, and it is costly to install a speedometer in every vehicle.
An object of the present invention is to optimize the operation of a circuit breaker without providing a speedometer in a vehicle.

In one aspect, the present invention is a circuit breaker that is installed on the ground and includes a speed measurement unit that measures the speed of a vehicle, and a control unit that controls the circuit breaker based on the speed measured by the speed measurement unit. A control device is provided.
In a preferred aspect, the vehicle is a train traveling on a track, the breaker is provided at a railroad crossing, and includes an alarm device, and the control unit is configured to raise and lower the fence of the breaker and the sounding timing of the alarm device To control.
In a preferred aspect, the control unit determines the start of the elevating or descending operation of the kite and the start or stop of the ringing operation based on the speed of the vehicle measured at a preset position.
In a preferred aspect, the control unit controls the circuit breaker based on speeds measured at a plurality of positions for one train.
In a preferred aspect, the speed measuring unit includes a first measuring instrument and a second measuring instrument provided on both sides of the track across the railroad crossing, and the first measuring instrument travels toward the railroad crossing. The speed of the train is measured, and the second measuring instrument measures the speed of the train moving away from the railroad crossing.
In a preferred aspect, the control unit advances the timing at which the breaker starts to rise and the timing at which the alarm device stops as the speed at which the train moves away increases.
In a preferred aspect, the control unit advances the timing for starting the descent of the circuit breaker and the timing for operating the alarm device as the speed of the train approaching increases.
In a preferred aspect, when it is detected that the speed of the vehicle traveling toward the railroad crossing becomes zero, the breaker is raised.

  According to the present invention, the operation of the circuit breaker can be optimized without providing a speedometer in the vehicle.

Schematic of the circuit breaker control system 800. FIG. The functional diagram of the circuit breaker control system 800. The operation example of the circuit breaker control system 800.

FIG. 1 is a conceptual diagram of a circuit breaker control system 800. The circuit breaker control system 800 includes a railroad crossing breaker 300 provided on a track 600 on which the train 500 travels, a control device 100 related to control of the railroad crossing breaker 300, and a speedometer 200.
The railroad crossing breaker 300 is a general breaker, and two railroad crossing breakers 300 are provided at positions facing each other across the track 600. The blocking method is arbitrary.
The speedometer 200 is installed on the ground in the vicinity of the railroad crossing barrier 300, and measures the speed of the train 500 traveling on the track 600.

In one aspect, the control device 100 is installed on the ground in the vicinity of the level crossing barrier 300 and is electrically connected to the speedometer 200 and the level crossing barrier 300 through signal lines. Note that the control device 100 may be provided at a remote location that is not related to the position of the level crossing barrier 300 and, for example, control signals to the speedometer 200 and the level crossing barrier 300 may be transmitted via a communication line.
A first check point CP1 and a second check point CP2 are set on the line 600. The monitoring section S is defined by the first check point CP1 and the second check point CP2. Further, the traveling direction of the train 500 traveling on the track 600 is only one direction of the arrow in the figure. That is, the train 500 is monitored from the time of entering the first check point CP1 to the time of exiting the second check point CP2.

FIG. 2 is a functional diagram of the circuit breaker control system 800. The circuit breaker control system 800 includes a control device 100, a speedometer 200, and a level crossing circuit breaker 300.
The speedometer 200 irradiates electromagnetic waves and ultrasonic waves toward a predetermined irradiation range, determines the presence or absence of an object depending on whether or not the reflection is received, and based on the frequency shift of the reflected wave, The position and speed of the object are detected. Specifically, speedometer 200 includes a first speedometer 210 and a second speedometer 220. The first speedometer 210 measures the speed of the train 500 traveling toward the railroad crossing, and the second speed measures the speed of the train 500 moving away from the railroad crossing. Thereby, it is detected that the line 600 exists in the monitoring section S, and the speed in the monitoring section S is continuously measured.
Note that the presence / absence of the presence at the predetermined position may be determined based on whether or not the received reflected wave has a preset intensity, or may be determined to be present at the position when the reflected wave is detected. Good.
Speedometer 200 includes a first speedometer 210 and a second speedometer 220.

  The detection operation of the speedometer 200 is repeatedly executed. The detected information is supplied to the control device 100 as needed. There may be a plurality of trains 500 in the monitoring section S. In this case, at least the speed of each train 500 is monitored. Preferably, the position of each train 500 in the monitoring section S is continuously detected.

The crossing barrier 300 includes a barrier 310 and an alarm 320.
The breaker 310 includes a breaker, a drive mechanism for the breaker, and a control circuit. Under the control of the control device 100, the breaker 310 lowers the breaker so as to block the passage of people and vehicles crossing the track 600. Release the blockage by raising the heel.
The alarm device 320 includes a light emitting means such as a red lamp, a drive circuit, an acoustic signal processing circuit, a speaker, and the like, and warns a passerby through vision and hearing. The operations of the circuit breaker 310 and the alarm device 320 are synchronized. That is, the alarm is activated when the barrier rod is lowered, and the alarm is canceled when the barrier rod is raised.

  The control device 100 is realized by a processor such as a CPU, and is a control signal for starting and releasing a blockage based on information about the speed of the train 500 measured at a preset position, which is obtained from the speedometer 200. Is generated and supplied to the railroad crossing barrier 300. Specifically, this control signal designates at least one of the timing for raising or lowering the fence of the circuit breaker, and the timing for operating and releasing the alarm device.

For example, when the passing speed at the first check point CP1 is equal to or lower than a predetermined value, the control device 100 determines to shut off immediately (that is, without waiting). Alternatively, it is determined that the blocking operation is started after the time corresponding to the speed has elapsed.
For example, the timing at which the circuit breaker starts to rise and the timing to stop the alarm device are advanced as the speed at which the train moves away increases. Or the timing which starts the descent | fall of the said circuit breaker and the timing which act | operates the said alarm device are advanced, so that the speed which a train approaches is large. As an example, when the detected speed is 20 to 50 km / h, it is determined to be blocked after 3 seconds, and when it is 5 to 20 km / h or less, it is determined to be blocked after 10 seconds.

  FIG. 3 is an operation example of the circuit breaker control system 800. The speedometer 200 constantly monitors whether it has entered the monitoring section S (S102). When detecting the intrusion into the monitoring section S, the control device 100 determines the operation start timing of the crossing barrier 300 based on the speed information acquired from the speedometer 200 (S104). As a result, the crossing barrier 300 starts the blocking operation at the timing determined in S104 (S106).

  Thereafter, the speedometer 200 does not detect that the speed of the line 600 becomes zero (or a speed that can be regarded as substantially stopped) (S108; NO), and the line 600 escapes from the monitoring section S. If it is determined that the vehicle has passed the railroad crossing (S110; YES), it is determined whether there is another line 600 in the monitoring section S (S112). If there is no other track 600, the crossing barrier 300 is released from the block (S114).

  On the other hand, when it is detected in S108 that the speed of the track 600 is zero and that the track 600 does not exist at the level crossing, the level crossing breaker 300 releases the block (S116). In this state, there is a possibility that the track 600 has not yet passed the railroad crossing, but the track 600 is stopped, and it is estimated that substantial safety is ensured. Thereafter, when it is detected that the train has started to move (S118; YES), the railroad crossing barrier 300 executes the blocking operation again (S116). This is because as long as the track 600 moves within the monitoring section S, it cannot be said that safety is ensured.

  In the above embodiment, since the operation of the crossing barrier 300 is performed based on the speed, the crossing barrier 300 is controlled based on substantial safety. As a result, compared to the case where the railroad crossing breaker 300 is controlled based only on the position of the track 600, there is no state in which the railroad crossing breaker 300 does not open although there is substantially no danger, and the interruption state can be shortened. Moreover, since it is not necessary to provide a speedometer in each vehicle, it can be retrofitted to an existing train operation system. In addition, the breaker control system 800 can be pinpointed on necessary routes, sections, and level crossings.

The present invention may be applied to a gate that restricts the passage of a moving body such as an automobile other than a railroad crossing. Further, the traveling direction of the vehicle does not have to be one direction, and may be both directions. That is, in the present invention, the speed used for the control of the crossing barrier 300 includes both speed (absolute value of speed) and direction. The position and number of the predetermined positions (check points) are not limited to the above-described aspect. For example, a plurality of check points may be provided, and the operation content of the crossing barrier 300 may be determined (updated) based on the speed at each point.
The control apparatus 100 may control independently the operation timing of an alarm device, and the operation timing of interruption | blocking.

  The configurations, shapes, sizes, and arrangement relationships described in the above embodiments are merely schematically shown to the extent that the present invention can be understood and implemented. Therefore, the present invention is not limited to the described embodiments, and can be modified in various forms without departing from the scope of the technical idea shown in the claims.

DESCRIPTION OF SYMBOLS 100 ... Control apparatus, 200 ... Speedometer, 210 ... 1st speedometer, 300 ... Railroad crossing breaker, 220 ... 2nd speedometer, 310 ... Breaker, 320 ...・ Alarm, 500 ... train, 800 ... crossing control system, CP1 ... first checkpoint, CP2 ... first checkpoint, 600 ... track, S ... monitoring section

Claims (8)

A speed measurement unit installed on the ground and measuring the speed of the vehicle;
A circuit breaker control device comprising: a control unit that controls the circuit breaker based on the speed measured by the speed measurement unit. The vehicle is a train traveling on a track,
The circuit breaker is provided at a railroad crossing and includes an alarm device,
The system according to claim 1, wherein the control unit controls the lifting / lowering timing of the fence of the circuit breaker and the sounding timing of the alarm device.   3. The control unit according to claim 2, wherein the control unit determines whether to start or stop the ringing operation and whether to start or stop the ringing operation based on the speed of the vehicle measured at a preset position. System.   The system according to claim 2 or 3, wherein the control unit controls the circuit breaker based on speeds measured at a plurality of positions for one train. The speed measuring unit includes a first measuring instrument and a second measuring instrument respectively provided on both sides of the track across the railroad crossing,
The first measuring instrument measures the speed of the train traveling toward the railroad crossing, and the second measuring instrument measures the speed of the train moving away from the railroad crossing. The system described in.   The system according to any one of claims 2 to 5, wherein the control unit advances the timing for starting the ascent of the circuit breaker and the timing for stopping the alarm device as the speed at which the train moves away increases.   The system according to any one of claims 2 to 6, wherein the control unit advances the timing for starting the descent of the circuit breaker and the timing for operating the alarm device as the speed of the train approaching is increased. .   The system according to any one of claims 2 to 7, wherein when the speed of the vehicle traveling toward the railroad crossing is detected to be zero, the breaker is raised.