JP4859298B2 - Railroad crossing control system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a railroad crossing control system that opens and closes a railroad crossing by operating a breaker, an alarm, etc. installed on a railroad crossing across a track, and more specifically, control using a wireless network without being operated by a person. The present invention relates to a railroad crossing control system that attempts to efficiently control the operation of a railroad crossing using train state information and railroad crossing state information in the zone.
[0002]
[Prior art]
A railroad crossing having a breaker, an alarm, a direction indicator, etc. is installed on the railroad crossing across the track. This crossing is controlled based on the position and course condition of the train traveling on the track. For example, a railroad crossing warning section is set from a predetermined distance before the railroad crossing to a predetermined distance immediately after the railroad crossing, and a track circuit or a railroad crossing controller is installed in the crossing warning zone for detecting the train position. The railroad crossing was opened and closed by detecting the entrance and advance of the train.
[0003]
For example, when a train enters the entrance section of the above-mentioned crossing warning section in the upward direction of the train travel, the entry of the train is detected by a track circuit installed in the entrance section, and the crossing warning control device enters from the track circuit. A detection signal is sent, and a drive signal is sent from the level crossing alarm control device to a level crossing breaker, an alarm, etc., and the alarm is sounded to alarm and the circuit breaker is closed. After that, when the train travels on the track and the train advances from the exit section including a predetermined distance immediately after the railroad crossing, it detects the train advancement in the track circuit of the exit section, and from the track circuit to the railroad crossing warning control device An advance detection signal is sent, and a stop signal is sent from the level crossing alarm control device to a level crossing breaker, alarm, etc., and the alarm is stopped and the circuit breaker is opened.
[0004]
In such a level crossing control, for a level crossing that is within a distance of about 100 m ahead of the direction of travel of a train from a departure signal at a station, overrun protection is provided to prevent overrun of the train that has entered the platform of the station. A protective section was provided, and when the train entered the station, the railroad crossing in the overrun protection section was closed even if no departure course was set. Then, after the train enters the station's form track, a predetermined time-up (for example, 30 seconds) time-up, or an opening operation (push button operation) performed by the station staff confirming the stop of the train, The railroad crossing was opened by stopping the alarm and breaker.
[0005]
[Problems to be solved by the invention]
However, in such conventional level crossing control, in particular for level crossing control in the overrun protection section, a predetermined time for the opening of the level crossing after the train enters the station form track. In the case of up, the train that entered the form track has already stopped, but the alarm state is kept until the time for a predetermined time has passed, and the railroad crossing is unnecessarily closed. Further, when the station staff confirms the stop of the train and performs the door opening operation, it is necessary to place a staff and operate the button every time the train enters the station form track. Further, since the crossing is controlled based on the position and course condition of the train traveling on the line, it is preferentially running of the train, especially the morning and evening rush hours, the overlap of uplink and downlink of the train The so-called “opening level crossing” state appeared. Therefore, it may cause traffic congestion on the road connected to the railroad crossing.
[0006]
Therefore, the present invention addresses such problems and uses a wireless network to efficiently control the crossing operation using the train state information and the crossing state information in the control zone without using a human operation. It aims at providing a level crossing control system.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a railroad crossing control system according to the present invention is a railroad crossing control system that opens and closes a railroad crossing by operating a breaker and an alarm installed on a railroad crossing across the railroad. Installed in the vehicle, on-vehicle control means for grasping the running state of the train and controlling traveling, crossing warning control means for controlling the opening / closing operation of the crossing including the breaker and the alarm, and provided in each control means built in a wireless communication means for communicating with the wireless communication means and line trains provided wayside, and a wireless network that communicates with the control means and trains, train from said respective control means through the wireless network enter a railroad crossing control logic unit generating the alert control information for the crossing captures status information and crossing state information, the alarm control information sent from the crossing control logic unit Zone control means for controlling the operation of train travel and level crossing in a control zone within a predetermined range set along the track, and the level crossing control logic unit is provided for each level crossing in the control zone. Data on the traffic volume in each time zone is stored as a database, the alarm duration is adjusted according to the traffic volume at each level crossing, and the zone control means allows the different trains to use the downstream line and the upstream line respectively. When proceeding, predict the alarm start and alarm end time at the level crossing in the up or down direction, count the alarm duration at the level crossing, and if the predetermined time has passed, the train of the train approaching the alarm start point The speed of the train is controlled so as to delay the approach to the alarm start point .
[0008]
With such a configuration, the on-board control means mounted on the train traveling on the track grasps the running state of the train and controls the traveling, and the level crossing alarm control means performs the opening / closing operation of the level crossing including the breaker and the alarm. controlled, performs communication with the control unit and the train by the upper Symbol wireless network constructed by a wireless communication means for communicating with a train provided in the radio communication means and line wayside provided in each control unit, the The train state information and the crossing state information from each control means are taken in via the wireless network, the alarm control information for the crossing is created in the crossing control logic unit, and the alarm control information sent from the crossing control logic unit is input. The zone control means controls train running and level crossing operations within a predetermined range of control zones set along the track, and the level crossing control logic unit controls the control zone. The traffic data of each level crossing in each time zone is stored as a database and the alarm duration is adjusted according to the traffic volume of each level crossing. When traveling on an upward track, predict the alarm start and alarm end time at the level crossing in the up or down direction, count the alarm duration at the level crossing, and if the predetermined time has passed, set the alarm start point It operates to control the speed of the train so as to delay the approach of the approaching train to the alarm start point .
[0011]
Moreover, the zone control means, when crossing is inoperable, but to stop the approach travel of the train of the railroad crossing. This makes it possible to prevent a level crossing accident.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a system configuration diagram showing an embodiment of a railroad crossing control system according to the present invention. This level crossing control system opens and closes a level crossing by operating a circuit breaker 4 and an alarm set installed on a level crossing 3 crossing a track 2 on which a train 1 travels. A control device 6, a zone controller 7, a wireless network, and a crossing control logic unit 8 are provided. In FIG. 1, reference numeral 2d indicates a downstream line, reference numeral 2u indicates an upstream line, reference numeral 4d indicates a circuit breaker provided on the downstream line 2d side, and reference numeral 4u indicates an upstream line. The circuit breaker provided in the track | line 2u side is shown.
[0014]
The on-board control device 5 is mounted on the train 1 traveling on the tracks 2d and 2u and serves as on-board control means for grasping the traveling state of the train 1 and controlling the traveling. For example, detection by a speed sensor such as a tachometer Train state information is obtained by calculating the train speed using the signal and grasping the traveling state. The on-board control device 5 is connected to a train radio device VRS as a wireless communication means and is mounted on the train 1.
[0015]
The level crossing alarm control device 6 serves as a level crossing alarm control means for controlling the opening and closing operation of the level crossing including the above-described circuit breakers 4d and 4u, an alarm device (not shown), a direction indicator, and the like. , 2u is detected to control the ringing of the alarm device by detecting the approach of the train 1 and to control the opening / closing of the circuit breakers 4d, 4u, and to operate the direction indicator indicating the direction of the passing train. The railroad crossing warning control device 6 is connected to a crossing radio CRS as a wireless communication means.
[0016]
The zone controller 7 serves as zone control means for controlling the operation of train traveling and level crossing in the control zone CZN within a predetermined range set along the tracks 2d and 2u. In the control zone CZN, A plurality of stations are included, and a plurality of controlled crossings are included between the stations. The zone controller 7 is installed at a certain station in the control zone CZN, and is connected to a station radio SRS as radio communication means.
[0017]
The train radio VRS connected to the on-board control device 5, the crossing radio CRS connected to the crossing warning control device 6, the station radio SRS connected to the zone controller 7, the track 2d, A radio network is constructed with a radio station WRS along the line 2u for measuring the distance to the train 1 traveling on the lines 2d and 2u and relaying the message. This wireless network transmits and receives train state information, railroad crossing state information, and the like by two-way communication between the on-board control device 5, the crossing warning control device 6, the zone controller 7, and the railway radio WRS.
[0018]
Further, the level crossing control logic unit 8 takes in train state information and level crossing state information from each of the control devices 5, 6, and 7 through the wireless network, creates alarm control information for the level crossing, and sends it to the zone controller 7. Thus, the level crossing is opened and closed by controlling all the operations of the circuit breakers 4d and 4u and alarms installed on the level crossing 3 by the calculation and judgment in the level crossing control logic unit 8.
[0019]
In FIG. 1, reference numeral 9 indicates an interlocking device that operates the switch to control the course of the train 1 when the track is divided into a main traveling line and a retreat line. This interlocking device 9 is connected to the zone controller 7 and the level crossing control logic unit 8, and controls the course of the train 1 by operating the switch from the position of the train 1 and the operating state of the level crossing. Yes.
[0020]
In the present invention, when the zone controller 7 detects that the train 1 enters and stops at the platform 10d, 10u of the station, the traveling direction of the train 1 is determined by the alarm control information from the crossing control logic unit 8. The crossing operation (alarm operation) of the level crossing in the overrun protection section is stopped. Further, the zone controller 7 predicts the alarm start time and the alarm end time at the crossing in the up or down direction when different trains 1 travel on the down line and the up line, respectively. When the time is counted and a predetermined time has elapsed, the speed of the train 1 is controlled so as to delay the approach of the train 1 approaching the alarm start point to the alarm start point. Furthermore, when the circuit breakers 4d, 4u, alarms, etc. at the railroad crossing are inoperable, the approaching traveling of the train 1 to the railroad crossing is stopped. Further, the level crossing control logic unit 8 holds traffic volume data in each time zone of each level crossing in the control zone CZN as a database, and adjusts the alarm duration according to the traffic volume of each level crossing. It has become.
[0021]
Next, the operation of the crossing control system configured as described above will be described. First, in FIG. 1, it is assumed that the train 1 travels on the down line 2d and enters the section of the platform 10d from the section on the near side of the station platform 10d. Control of a level crossing within the overrun protection section set at a distance of 100 m or less will be described with reference to FIG.
[0022]
In this case, in the prior art, as shown in FIG. 2 (a), the railroad crossing is performed as shown in FIG. 2 (d) in a state where “there is a train” is detected by the track circuit in the immediately preceding section of the platform 10d. There is an alarm, and the circuit breakers 4d and 4u are closed. Thereafter, when the train 1 enters the section of the platform 10d, as shown in FIG. 2B, the presence of a train is detected by the track circuit in the section. As shown in FIG. 2 (c), the time element count is started by the detection signal “There is a train” in the track circuit, and when the predetermined time element (for example, 30 seconds) is counted, as shown in), crossing alarm is stopped, the breaker 4d, 4u is opened. Therefore, regardless of the stop of the train 1 on the platform 10d, the railroad crossing warning is not stopped unless a predetermined time has elapsed from the start of the hourly count.
[0023]
In contrast, in the present invention, the zone controller 7 shown in FIG. 1 has always monitors the information from the train radio VRS and wayside radio WRS, the wayside radio transmitted from a plurality of wayside radio WRS The position of the target train 1 is calculated from the distance information between the WRS and the train radio VRS and the position information of each of the radio stations WRS itself. In FIG. 1, assuming that the train 1 is traveling on the downward line 2d, the train 1 has entered the section immediately before the platform 10d by detecting the train position of the zone controller 7 and the train radio VRS. detects, in FIG. 2 (e), the breaker 4d starts the alarm of the railroad crossing, the 4u closed et be. After that, with the progress of the train 1, it was entered in the section of the station platform 10d is detected by the zone controller 7.
[0024]
In this state, the railroad crossing control logic unit 8 uses the train position information from the zone controller 7 and the train state information sent from the train radio VRS to keep the train position for a predetermined time (for example, 3 seconds). When the train speed is zero and the train speed is zero, it is determined that the target train 1 is stopped at that position. As a result, the stop of the train 1 is detected as shown in FIG. At this point, the level crossing control logic unit 8 detects that the departure signal from the station is a stop indication (red signal sign) of the train 1 and that the train 1 stops at the station platform 10d. 2 (e), the crossing of the alarm is stopped, breaker 4d, 4u is opened.
[0025]
Therefore, according to the present invention, as shown in FIG. 2 (e), without waiting for the time count shown in FIG. 2 (c) to end, as soon as the stop of the train 1 is detected, the crossing warning is stopped. Thus, the circuit breakers 4d and 4u can be opened. In general, since the time count is somewhat longer for safety reasons, in the present invention, the crossing operation can be stopped and the level crossing can be opened earlier than time by the time T.
[0026]
Next, in FIG. 1, a certain train 1 travels on the down line 2d and another train 1 travels on the up line 2u, and predicts the alarm start and alarm end time at the up or down crossing. The level crossing control when the speed control is performed so as to delay the approach of the train 1 approaching the start point to the alarm start point will be described with reference to FIG. In this case, the level crossing control logic unit 8 shown in FIG. 1 monitors the time (alarm duration) during which an alarm is maintained for each level crossing in the control zone CZN as shown in FIG. Here, the crossing control logic unit 8 stores traffic volume data in each time zone of each crossing in the control zone CZN as a database, and adjusts the alarm duration according to the traffic volume of each crossing.
[0027]
Now, as shown in FIG. 3 (b), at a certain level crossing on the track 2d in the downward direction, when the level crossing starts an alarm at time t1, it is calculated from the traveling speed of the train 1 traveling on the line 2d. Suppose that the alarm is predicted to end at time t4. In this case, the level crossing has an alarm time longer than the predetermined alarm duration at time t2 shown in FIG. 3A, and therefore the level crossing control logic unit 8 determines that the alarm duration of the level crossing exceeds the zone. Notify the controller 7.
[0028]
Zone controller 7, an alarm duration is notified of the crossing to be over, from the position and speed of the train other train 1 Zaisen in approaching the crossing and warning the interval, uplink and downlink warning issue or Predict the alarm end time. For example, as shown in FIG. 3 (c), it is assumed that the predicted time when the train 1 traveling on the upward line 2u enters the warning section of the level crossing and starts the warning is t3. Now, as described above, the predicted alarm end time in the downward direction of the railroad crossing is t4, and the alarm start predicted time t3 arrives before the alarm end predicted time t4. It is assumed that it is within a predetermined range.
[0029]
In this case, in the level crossing control as it is, the closing operation of the level crossing in the down direction is connected to the closing operation of the level crossing in the up direction, and a so-called “opening level crossing” state appears. Therefore, the zone controller 7 predicts the down warning end time for the train 1 traveling on the up line 2u and approaching the crossing warning start point, as shown in FIG. The speed of the train 1 is controlled so as to reach the alarm start point for the crossing at time t5 after t4. That is, a speed control signal is transmitted from the zone controller 7 via the station radio SRS, received by the train radio VRS, and the speed of the train 1 is controlled by the on-board controller 5 so that the crossing warning start point is obtained. Delay entry into.
[0030]
As a result, the crossing in the down direction is opened at time t4, and the crossing in the up direction is closed at time t5. Accordingly, as shown in FIG. 3 (e), the period from time t4 to time t5, becomes time to open the crossing, the state of so-called "crossings not open" is eliminated. The time for the level crossing to open from time t4 to time t5 does not have to be very long, and it may be just the time for a person or car to cross the railroad crossing 3 once.
[0031]
【Effect of the invention】
Since the present invention configured as described above, the invention according to claim 1, communicates with the train provided in the radio communication means and line wayside provided train control unit and crossing warning controller the wireless network constructed by a wireless communication means performs communication with the control means and trains, the railroad crossing control logic fetches the train status information, and crossing state information from each of the control means through the wireless network Thus , the alarm control information for the level crossing is created , and the zone control means to which the alarm control information sent from the level crossing control logic unit is input, the train running and level crossing in the control zone of the predetermined range set along the track are performed. The operation can be controlled . Thereby, the operation of the crossing can be efficiently controlled by using the train state information and the crossing state information in the control zone by using the wireless network by the zone control means without being operated by a person. In this case, the level crossing control logic unit stores traffic volume data for each level crossing in the control zone as a database, and can adjust the alarm duration according to the traffic volume of each level crossing. Accordingly, it is possible to appropriately determine the time for closing the level crossing according to the traffic volume of each level crossing, and to balance the operation of the train passing through the level crossing and the traffic volume of the road connected to the level crossing. Further, when the different trains travel on the down line and the up line by the zone control means, the alarm start time and the alarm end time at the up or down crossing are predicted, and the alarm duration at the crossing is predicted. When the predetermined time has elapsed, the speed of the train can be controlled to delay the approach of the train approaching the alarm start point to the alarm start point. Can be resolved .
[0034]
Further, according to the invention of claim 2, said zone control means, when crossing is inoperative, by stopping the approach travel of the train of the railway crossing, it is possible to prevent crossing accidents .
[Brief description of the drawings]
FIG. 1 is a system configuration diagram showing an embodiment of a railroad crossing control system according to the present invention.
FIG. 2 is a timing diagram illustrating a control operation of a crossing in an overrun protection section from a station in the crossing control system.
FIG. 3 is a timing line for explaining a control operation of a crossing when speed control is performed so as to delay the approach of a train approaching the alarm start point at a crossing in each traveling direction in the crossing control system described above. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Train 2d ... Down line 2u ... Up direction line 3 ... Railroad crossing 4d ... Down direction barrier 4u ... Up direction barrier 5 ... On-board control device 6 ... Railroad crossing warning control device 7 ... Zone controller 8 ... Crossing control logic unit 10d ... Downward platform 10u ... Upward platform
VRS ... Train radio
WRS… Wireless radio
CRS ... Railroad crossing radio
SRS ... Station radio

Claims (2)

In a railroad crossing control system that opens and closes a railroad crossing by operating a breaker and an alarm installed on a railroad crossing across the track,
On-board control means that is mounted on a train that travels on the track and grasps the travel state of the train and controls travel,
Level crossing alarm control means for controlling the opening and closing operation of the level crossing including the breaker and the alarm;
The wireless communication means provided in each control means and the wireless communication means provided along the track to communicate with the train, a wireless network for communication between each control means and the train, and
A railroad crossing control logic unit generating the alert control information for the crossing captures train status information, and crossing state information from each of the control means through the wireless network,
Zone control means for inputting the alarm control information sent from the level crossing control logic unit, and controlling the operation of train traveling and level crossing within a predetermined range of control zones set along the track,
The level crossing control logic unit stores traffic volume data in each time zone of each level crossing in the control zone as a database, adjusts the alarm duration according to the traffic volume of each level crossing,
The zone control means predicts the alarm start time and alarm end time at the crossing in the up or down direction when different trains travel on the down line and the up line, respectively, and counts the alarm duration at the crossing. When the predetermined time has elapsed, the train speed is controlled so as to delay the approach of the train approaching the alarm start point to the alarm start point.
A crossing control system characterized by that. The crossing control system according to claim 1 , wherein the zone control means stops the approaching traveling of the train to the crossing when the crossing is inoperable.

Images