WO2020194696A1

WO2020194696A1 - Train control system

Info

Publication number: WO2020194696A1
Application number: PCT/JP2019/013749
Authority: WO
Inventors: 智宏大西; 敦高見
Original assignee: 三菱電機株式会社
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-10-01
Also published as: JPWO2020194696A1; JP7170843B2

Abstract

This train line position device (1) comprises: a remaining time calculation unit (10) that calculates the remaining time (T) indicating the remaining time required to secure a preset design warning time (Td) used as a reference time from the start of the output of a warning, until a train (2) reaches a crossing (5), on the basis of current time information indicating the current time, and warning output time information indicating the time at which output of the crossing (5) warning is started; and a train travel control unit (8) that controls the travel of the train (2) so that the train does not reach the crossing (5) in a time shorter than the remaining time (T).

Description

Train control system

The present invention relates to a train control system that controls the running of a train passing through a railroad crossing.

Conventionally, a wireless train control system configured to control the operation of a train by sending information on the current position of the own train from an on-board device mounted on the train to a ground device by wireless communication has been known. (See, for example, Patent Document 1). In Patent Document 1, the ground device calculates a railroad crossing arrival predicted time, which is the time when a train is predicted to reach a railroad crossing, and when the railroad crossing arrival predicted time is equal to or less than a predetermined design warning time, the railroad crossing is contacted. To start the alarm operation. In Patent Document 1, for example, the estimated railroad crossing arrival time is calculated as the time for the train to reach the railroad crossing from the current position at the maximum permissible speed. As a result, in Patent Document 1, the actual railroad crossing arrival time does not exceed the railroad crossing arrival prediction time.

Japanese Unexamined Patent Publication No. 2017-081365

For example, when a temporary speed limit, which is a temporary speed limit, is set, the train must travel below the speed limit indicated by the temporary speed limit. In that case, the maximum permissible speed of the train is the speed limit indicated by the temporary speed limit, and in Patent Document 1, the estimated time to reach the railroad crossing is calculated as the time to reach the railroad crossing at the speed limit indicated by the temporary speed limit, and the calculated railroad crossing arrival is reached. When the predicted time is equal to or less than the predetermined design alarm time, the alarm operation is started for the railroad crossing. However, if the temporary speed limit is released or changed after the alarm operation is started, the train may reach the railroad crossing before the design alarm time elapses.

The present invention has been made to solve the above problems, and prevents the train from reaching the railroad crossing before the lapse of the design alarm time regardless of the temporary release or change of the speed limit. The purpose is to provide a train control system that can be used.

In order to achieve the above object, the train control system according to the present invention outputs an alarm based on the current time information indicating the current time and the alarm output time information indicating the time when the output of the railroad crossing alarm is started. Remaining time calculation unit that calculates the remaining time indicating the remaining time required to secure the design alarm time preset as the reference time from the start of the train to the arrival of the train, and the remaining time of the train It is equipped with a train running control unit that controls the running of the train so that the railroad crossing is not reached in a short time.

According to the train control system according to the present invention, the train crosses the railroad crossing from the start of the alarm output based on the current time information indicating the current time and the alarm output time information indicating the time when the railroad crossing alarm output is started. Calculate the remaining time, which indicates the remaining time required to secure the design alarm time preset as the reference time until reaching, and prevent the train from reaching the railroad crossing in a time shorter than the remaining time. Since the running is controlled, it is possible to prevent the train from reaching the railroad crossing before the lapse of the design warning time.

It is a block diagram which shows an example of the structure of the train control system which concerns on Embodiment 1 of this invention. It is a sequence diagram which shows an example of the processing procedure by the train control system which concerns on Embodiment 1 of this invention. It is a flowchart which shows an example of the process flow of the railroad crossing control by the train control system which concerns on Embodiment 1 of this invention. It is a flowchart which shows an example of the flow of the calculation process of the railroad crossing speed limit by the train control system which concerns on Embodiment 1 of this invention. It is a flowchart which shows an example of the process flow of the train running control by the train control system which concerns on Embodiment 1 of this invention. It is a block diagram which shows an example of the structure of the train control system which concerns on Embodiment 2 of this invention. It is a sequence diagram which shows an example of the processing procedure by the train control system which concerns on Embodiment 2 of this invention. It is a flowchart which shows an example of the process flow of the railroad crossing control by the train control system which concerns on Embodiment 2 of this invention. It is a block diagram which shows an example of the structure of the train control system which concerns on Embodiment 3 of this invention. It is a sequence diagram which shows an example of the processing procedure by the train control system which concerns on Embodiment 3 of this invention. It is a block diagram which shows an example of the structure of the train control system which concerns on Embodiment 4 of this invention. It is a sequence diagram which shows an example of the processing procedure by the train control system which concerns on Embodiment 4 of this invention. It is a flowchart which shows an example of the process flow of the railroad crossing control by the train control system which concerns on Embodiment 4 of this invention. It is a flowchart which shows an example of the flow of the calculation process of the remaining time by the train control system which concerns on Embodiment 4 of this invention. It is a flowchart which shows an example of the process flow of the train running control by the train control system which concerns on Embodiment 4 of this invention. It is a figure which shows an example of the hardware composition which realizes each apparatus provided in the train control system which concerns on Embodiments 1 to 4 of this invention.

Hereinafter, embodiments of the train control system according to the present invention will be described with reference to the drawings.

Embodiment 1.
FIG. 1 is a block diagram showing an example of the configuration of the train control system 1 according to the first embodiment. As shown in FIG. 1, the train control system 1 controls, for example, an on-board device 3 mounted on the train 2, a ground device 4 that wirelessly communicates with the on-board device 3, an alarm output of a railroad crossing 5, and the like. The railroad crossing control device 6 is provided.

The on-board device 3 is mounted on the train 2, and includes an on-board control device 31 that generates train information including information such as the current position information of the train 2 and speed information, and a train generated by the on-board control device 31. It includes an on-board radio device 32 that transmits information such as information to the ground device 4.

The ground device 4 includes a ground control device 41 that controls the operation of the train 2 and a ground radio device 42 that is connected to the ground control device 41 via the network 7. The train control system 1 of the first embodiment shows an example in which one ground control device 41 is provided and two ground radio devices 42 are connected to the ground control device 41 via a network 7. However, the number of the ground control device 41 and the ground radio device 42 is not limited to this. Further, the ground control device 41 is communicably connected to the railroad crossing control device 6 provided on the ground via a wired or wireless interface.

The on-board control device 31 generates position information indicating the current position of its own train 2. Although not shown in detail, the on-board control device 31 detects the speed by using, for example, a position where the ground element information of the ground element installed on the track on which the train 2 itself travels is detected by the on-vehicle element as a reference position. The position information of the train 2 is generated by calculating the mileage from the reference position based on the speed information of the train 2 detected by the unit. The position information includes, for example, information on the front position and the rear position of the train 2. As the speed detection unit, for example, a speed generator mounted on the train 2 can be used. The method for obtaining the position information of the train 2 is not limited to this, and other conventionally known methods may be used. The on-board control device 31 defines, for example, train information including position information, speed information, time information of train 2, train ID for identifying own train 2, train length, and information such as train traveling direction. It is transmitted to the ground control device 41 via the on-board radio device 32 and the ground radio device 42 in the cycle of. Further, in the train control system 1 according to the present embodiment, the on-board control device 31 controls the running of the train 2 based on the train control information and the like received from the ground control device 41 via the on-board radio device 32. The train running control unit 8 is provided.

The on-board radio device 32 periodically transmits train information including the position information of the train 2 received from the on-board control device 31 to the terrestrial radio device 42. Further, the on-board radio device 32 receives the train control information for controlling the running of the train 2 transmitted from the ground control device 41 via the ground radio device 42, and outputs the train control information to the on-board control device 31.

The ground control device 41 is connected to the ground radio device 42 via the network 7, and is a train approaching the railroad crossing 5 from the on-board control device 31 of the train 2 via the on-board radio device 32 and the ground radio device 42. Acquire train information including the position information of 2. The ground control device 41 transmits the acquired train information to the railroad crossing control device 6. Further, for example, when a temporary speed limit, which is a first speed limit that temporarily limits the speed of the train 2 to a speed below the set first speed limit, is set, the speed limit setting terminal 9 is set on the ground control device 41. Temporary speed limit information indicating the first speed limit is input from. When the temporary speed limit information is input from the speed limit setting terminal 9, the ground control device 41 transmits the temporary speed limit information to the railroad crossing control device 6.

Further, the ground control device 41 generates train control information for controlling the train 2. The train control information generated by the ground control device 41 is transmitted to the train 2 via the ground radio device 42. In the train 2, the train control information sent from the terrestrial radio device 42 is received by the on-board radio device 32. The on-board radio device 32 outputs the received train control information to the on-board control device 31. The train running control unit 8 of the on-board control device 31 controls the running of the train 2 based on the train control information and the like received from the on-board radio device 32. The train control information includes, for example, temporary speed control information, railroad crossing information indicating the state of railroad crossing 5, stop limit information indicating the stop limit of train 2, train protection information indicating a prohibited section of train 2, and the like. ..

The railroad crossing control device 6 controls a railroad crossing alarm, a railroad crossing barrier, and the like provided at the railroad crossing. The railroad crossing control device 6 stores, for example, the position information of the railroad crossing 5 in advance in a storage device (not shown), and the train 2 takes the railroad crossing from the current position by using the position information of the train 2 received from the ground control device 41. The estimated railroad crossing arrival time, which is the time predicted to reach 5, is calculated in real time or at predetermined time intervals. The railroad crossing control device 6 refers to the railroad crossing 5 when the calculated railroad crossing arrival estimated time is equal to or less than the design alarm time preset as the reference time from the start of the alarm output to the arrival of the train 2 at the railroad crossing 5. And sends an alarm output command to start the alarm output. The railroad crossing control device 6 transmits a railroad crossing barrier command so that the railroad crossing barrier is shut off after a certain period of time has elapsed from the start of the alarm output of the railroad crossing alarm. Further, the railroad crossing control device 6 acquires railroad crossing information indicating the state of the railroad crossing 5 from the railroad crossing. The railroad crossing information includes, for example, blocking state information indicating whether or not the railroad crossing barrier is blocked, emergency button information indicating whether or not the emergency button is pressed, and the like. The railroad crossing control device 6 transmits the acquired railroad crossing information to the ground control device 41. In the present embodiment, an example in which one railroad crossing control device 6 is provided for one railroad crossing 5 is shown, but the railroad crossing control device 6 is configured to control a plurality of railroad crossings 5. Is also good.

Further, as shown in FIG. 1, the railroad crossing control device 6 of the train control system 1 according to the present embodiment is a remaining time calculation unit that calculates the remaining time indicating the remaining time required to secure the design alarm time. 10, the railroad crossing arrival determination unit 11 that determines whether or not the railroad crossing is reached when the train 2 travels the remaining time at a specific speed from the current position, and the speed that is limited until the train 2 reaches the railroad crossing. It is provided with a railroad crossing limit speed calculation unit 12 for calculating a railroad crossing limit speed.

FIG. 2 is a sequence diagram showing an example of a processing procedure by the train control system 1 according to the first embodiment of the present invention. Hereinafter, an example of the processing procedure by the train control system 1 according to the first embodiment of the present invention will be described with reference to the sequence diagram of FIG. In the train control system 1, as shown in FIG. 2, in step S1, the ground control device 41 acquires the temporary speed limit information from the speed limit setting terminal 9 when the temporary speed limit is set. Note that FIG. 2 shows an example in which the temporary speed limit is set, but when the temporary speed limit is not set, the ground control device 41 receives information from the speed limit setting terminal 9. It may not be acquired. Further, when the temporary speed limit is released from the state in which the temporary speed limit is set, the ground control device 41 provides the temporary speed limit release information indicating that the temporary speed limit has been released from the speed limit setting terminal 9. get. Further, for example, a speed limit different from the first speed limit is different from the state in which the temporary speed limit, which is the first speed limit that temporarily limits the speed of the train 2 to the set speed limit or less, is set. When the temporary speed limit, which is the second speed limit for limiting the speed to 2 or less, is newly set, the temporary speed limit information indicating the second speed limit is acquired from the speed limit setting terminal 9.

Further, in step S2, the ground control device 41 periodically acquires train information including information such as the current position information and speed information of the train 2 from the on-board control device 31. In step S3, the ground control device 41 transmits the acquired temporary speed limit information and train information to the railroad crossing control device 6. When the ground control device 41 has acquired the temporary speed limit release information instead of the temporary speed limit information, the ground control device 41 transmits the temporary speed limit release information and the train information to the railroad crossing control device 6. If the ground control device 41 has not acquired information such as temporary speed limit information from the speed limit setting terminal 9, only the train information is transmitted to the railroad crossing control device 6.

When the railroad crossing control device 6 acquires train information from the ground control device 41 in step S3, the railroad crossing control device 6 acquires railroad crossing information indicating the state of the railroad crossing 5 from the railroad crossing 5 in step S4. Then, in step S5, the railroad crossing control device 6 calculates the railroad crossing arrival prediction time, which is the time when the train 2 is predicted to reach the railroad crossing 5, using the position information of the train 2 received from the ground control device 41. To do. In step S6, the railroad crossing control device 6 transmits an alarm output command to the railroad crossing 5 so as to start outputting an alarm to the railroad crossing 5 when the calculated railroad crossing arrival estimated time is equal to or less than the design alarm time.

Next, in step S7, the railroad crossing control device 6 calculates the railroad crossing speed limit, which is the speed limited until the train 2 reaches the railroad crossing 5 in order to secure the design alarm time. The details of the process of calculating the railroad crossing speed limit will be described later. When the railroad crossing control device 6 calculates the railroad crossing speed limit in step S8, it transmits the railroad crossing speed limit information indicating the calculated railroad crossing speed limit and the railroad crossing information acquired in step S4 to the ground control device 41.

In step S9, when the temporary speed limit is changed from the one acquired in step S1 to a new one, for example, the speed of the train 2 is temporarily set to be equal to or lower than the set first speed limit. From the state where the temporary speed limit, which is the first speed limit to be restricted, is set, the temporary speed limit, which is the second speed limit that limits to the second speed limit or less, which is different from the first speed limit, is newly set. If so, the temporary speed limit information indicating the second speed limit is acquired from the speed limit setting terminal 9. When the temporary speed limit acquired in step S1 is released, the ground control device 41 releases the temporary speed limit indicating that the temporary speed limit has been released instead of the temporary speed limit information from the speed limit setting terminal 9. Get information. Further, if there is no change or cancellation from the temporary speed limit acquired in step S1, the ground control device 41 may not acquire new information from the speed limit setting terminal 9.

Then, in step S10, the ground control device 41 transfers the train control information including the latest changed temporary speed limit information, railroad crossing information, stop limit information, etc., and the railroad crossing speed limit information to the on-board control device 31. Send. If the temporary speed limit information is not changed from the temporary speed limit information acquired in step S1, the ground control device 41 uses the temporary speed limit information acquired in step S1 as the latest temporary speed limit information on the vehicle. It transmits to the device 31. Further, when the ground control device 41 has acquired the temporary speed limit release information instead of the temporary speed limit information in step S9, the on-board control device 41 uses the temporary speed limit release information instead of the latest temporary speed limit information. Send to 31.

In step S11, the train running control unit 8 of the on-board control device 31 controls the running of the train 2 based on the train control information and the railroad crossing speed limit information received from the ground control device 41.

FIG. 3 is a flowchart showing an example of a flow of railroad crossing control processing by the train control system 1 according to the first embodiment of the present invention. Hereinafter, an example of the flow of the railroad crossing control process by the train control system 1 according to the first embodiment of the present invention will be described with reference to the flowchart of FIG. As shown in FIG. 3, in step S101, the railroad crossing control device 6 receives train information including the position information of the train 2 located on the route where the railroad crossing 5 is located from the ground control device 41. Further, the railroad crossing control device 6 receives the temporary speed limit information from the ground control device 41 when the temporary speed limit is set.

In step S102, the railroad crossing control device 6 extracts the train 2 located in the vicinity of the railroad crossing 5 based on the position information of the train 2 and the position information of the railroad crossing 5 included in the received train information. Further, in step S103, the railroad crossing control device 6 receives railroad crossing information indicating the state of the railroad crossing 5 from the railroad crossing 5.

Next, in step S104, the railroad crossing control device 6 determines whether or not the railroad crossing 5 has already output an alarm. The railroad crossing control device 6 determines whether or not the alarm has been output by checking, for example, whether or not the railroad crossing output time information indicating the time when the railroad crossing 5 starts outputting the alarm is stored. Can be done. If the railroad crossing control device 6 determines in step S104 that the warning of the railroad crossing 5 has not yet been output (No), the train 2 extracted in step S102 reaches the railroad crossing from the current position in step S105. Calculates the estimated railroad crossing arrival time, which is the estimated time. As a method of calculating the estimated railroad crossing arrival time, for example, when the railroad crossing control device 6 receives the temporary speed limit information in step S101 (when the temporary speed limit is set), the train 2 is currently The estimated railroad crossing arrival time is calculated as the time required to reach the railroad crossing 5 when traveling at the first speed limit indicated by the temporary speed limit information. Further, the railroad crossing control device 6 is, for example, when the temporary speed limit information is not received in step S101 (when the temporary speed limit is not set), the train 2 is allowed to be the maximum allowed in the section from the current position. It is calculated as the time required to reach the railroad crossing 5 when traveling at a speed. The maximum permissible speed is the maximum safety speed permissible for each section on the track on which the train 2 travels, and is determined based on various speed limits, vehicle types, and the like. When the railroad crossing control device 6 has not received the temporary speed limit information in step S101 (when the temporary speed limit is not set), the train 2 accelerates from the current speed at a predetermined acceleration to the maximum. The estimated railroad crossing arrival time may be calculated as the time to reach the railroad crossing 5 at the permissible speed. The railroad crossing control device 6 may store information on the acceleration and the maximum permissible speed of the train 2 used for calculating the predicted railroad crossing arrival time in advance, or may receive the information from the ground control device 41 or the on-board control device 31. You may. The acceleration of the train 2 used for calculating the estimated railroad crossing arrival time is the maximum acceleration determined from the vehicle performance of the train 2 and the like, and does not accelerate beyond the acceleration. The method of calculating the railroad crossing arrival predicted time is not limited to these, and a conventionally known method of calculating the railroad crossing arrival predicted time may be used. Further, the estimated railroad crossing arrival time may be a value corrected in consideration of the transmission time from the on-board control device 31 to the ground control device 41.

In step S106, the railroad crossing control device 6 determines whether or not the estimated railroad crossing arrival time calculated in step S105 is equal to or less than the design alarm time. In step S106, when the railroad crossing control device 6 determines that the railroad crossing arrival predicted time is equal to or less than the design alarm time (Yes), the railroad crossing control device 6 transmits an alarm output command to the railroad crossing 5 in step S107 to issue an alarm for the railroad crossing 5. Start output. Then, in step S108, the railroad crossing control device 6 stores the alarm output time information indicating the alarm output time, which is the time when the alarm output of the railroad crossing 5 is started.

Next, in step S109, the railroad crossing control device 6 calculates the railroad crossing speed limit, which will be described later. Then, in step S110, the railroad crossing control device 6 transmits the railroad crossing speed limit calculated in step S109 and the railroad crossing information received in step S103 to the ground control device 41. Further, when the railroad crossing control device 6 receives the position of the train 2 from the ground control device 41, the railroad crossing control device 6 repeats the process from step S101.

Further, in step S106, when the railroad crossing control device 6 determines (No) that the railroad crossing arrival predicted time calculated in step S105 is not equal to or less than the design alarm time, the railroad crossing control device 6 does not start the output of the warning of the railroad crossing 5 and takes step S109. In step S110, the railroad crossing speed limit and the railroad crossing information are transmitted to the ground control device 41.

Further, in step S104, when the railroad crossing control device 6 determines that the railroad crossing 5 has already output an alarm (Yes), in step S111, the railroad crossing control device 6 determines whether or not the train 2 has passed the railroad crossing 5. .. The railroad crossing control device 6 compares, for example, the position information of the train 2 with the position information of the railroad crossing 5, and determines whether or not the train 2 has passed the railroad crossing 5. If the railroad crossing control device 6 determines in step S111 that the train 2 has not yet passed the railroad crossing (No), the railroad crossing control device 6 performs the processes after the calculation process of the railroad crossing speed limit in step S109.

When the railroad crossing control device 6 determines in step S111 that the train 2 has passed the railroad crossing (Yes), it transmits an alarm output stop command to the railroad crossing 5 in step S112 to output an alarm for the railroad crossing 5. Is stopped, and in step S113, the alarm output time information indicating the time when the alarm output of the railroad crossing 5 is started is deleted from the storage device. Then, in step S109, the railroad crossing control device 6 calculates the railroad crossing speed limit, and in step S110, the railroad crossing speed limit and the railroad crossing information are transmitted to the ground control device 41.

FIG. 4 is a flowchart showing an example of the flow of the calculation process of the railroad crossing speed limit by the train control system 1 according to the first embodiment of the present invention. Hereinafter, an example of the flow of the calculation process of the railroad crossing speed limit shown in step S109 of FIG. 3 by the train control system 1 according to the first embodiment of the present invention will be described with reference to the flowcharts of FIGS. 1 and 4.

In step S201, the remaining time calculation unit 10 of the railroad crossing control device 6 first determines whether or not the alarm output time information is stored. When the remaining time calculation unit 10 determines in step S201 that the alarm output time information is stored (Yes), the design is made using the current time information indicating the current time and the alarm output time information in step S202. Calculate the remaining time indicating the remaining time required to secure the alarm time. The remaining time calculation unit 10 calculates the remaining time T by subtracting the difference between the current time and the alarm output time from the design alarm time Td, for example, as shown in the following mathematical formula (1). The current time information and the alarm output time information do not necessarily have to use the actual time information, as long as the difference between the current time and the alarm output time can be obtained. For example, the time based on the first train time. A shaft or the like may be used.
Remaining time T = design alarm time Td- (current time-alarm output time) ・・・ (1)

Next, in step S203, whether or not the railroad crossing arrival determination unit 11 is set with, for example, a temporary speed limit, which is a first speed limit that temporarily limits the speed of the train 2 to or less than the first speed limit. To judge. That is, the railroad crossing arrival determination unit 11 determines whether or not the temporary speed limit information has been received in step S101 of FIG.

If the railroad crossing arrival determination unit 11 determines in step S203 that the temporary speed limit is set (Yes), in step S204, the train 2 has the remaining time T at the first speed limit indicated by the temporary speed limit. The mileage L1 when traveling is calculated. Then, in step S205, the railroad crossing arrival determination unit 11 determines whether or not the position of the train 2 when traveling by a distance L1 from the current train position is before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5. To do. Specifically, the railroad crossing arrival determination unit 11 adds, for example, the mileage L1 calculated in step S204 to the current train position indicated by the position information of train 2 included in the train information received in step S101 of FIG. It is determined whether or not the position of the train 2 has reached the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5.

In step S205, the railroad crossing arrival determination unit 11 does not have the position of the train 2 before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5 (No) when the train 2 travels by a distance L1 from the current position of the railroad crossing 2. When it is determined that the railroad crossing position is reached (S205: No), in step S206, the railroad crossing limit speed calculation unit 12 sets the railroad crossing limit speed as the position information of the train 2, the position information of the railroad crossing 5, and the remaining time. Is used to calculate the first railroad crossing limit speed V1. The railroad crossing speed limit calculation unit 12 first divides the distance between the front position of the current train 2 and the position of the railroad crossing 5 by the remaining time T, for example, as shown in the following mathematical formula (2). The railroad crossing speed limit V1 is calculated. As for the position of the train 2, a value corrected in consideration of the transmission time may be used.
First railroad crossing speed limit V1 = (railroad crossing position-current train front position) / remaining time T ... (2)

In step S205, the railroad crossing arrival determination unit 11 has the position of the train 2 when traveling a distance L1 from the current train position before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5 (Yes), that is, the railroad crossing. If it is determined that the position 5 is not reached, in step S207, the railroad crossing speed limit calculation unit 12 calculates the first railroad crossing speed limit indicated by the temporary speed limit as the second railroad crossing speed limit V2. ..

Further, in step S203, when the railroad crossing arrival determination unit 11 determines that the temporary speed limit is not set (No), in step S208, the train 2 travels the remaining time T at the maximum allowable speed in the existing section. The mileage L2 at the time of this is calculated. Then, in step 209, the railroad crossing arrival determination unit 11 determines whether or not the position of the train 2 when traveling by a distance L2 from the current position of the railroad crossing 2 is before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5. To judge. Specifically, the railroad crossing arrival determination unit 11 sets the mileage L2 calculated in step S208 to the current position of the train 2 indicated by the position information of the train 2 included in the train information received in step S101 of FIG. It is determined whether or not the position of the added train 2 has reached the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5.

In step S209, the railroad crossing arrival determination unit 11 is not in front of the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5 when the train 2 travels by a distance L2 from the current position of the railroad crossing 2 (No), that is When it is determined that the railroad crossing 5 is reached, in step S206, the railroad crossing limit speed calculation unit 12 uses the position information of the train 2, the position information of the railroad crossing 5, and the remaining time as the railroad crossing limit speed. The first railroad crossing limit speed V1 is calculated.

In step S209, the railroad crossing arrival determination unit 11 has the position of the train 2 when traveling by a distance L2 from the current position of the railroad crossing 2 before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5 (Yes), that is, If it is determined that the position of the railroad crossing 5 is not reached, in step S210, the railroad crossing speed limit calculation unit 12 calculates the maximum permissible speed in the existing section as the third railroad crossing speed limit V3.

Further, in step S201, when the remaining time calculation unit 10 determines that the alarm output time information is not stored (No), in step S211 for example, the remaining time T is set to the design alarm time Td (remaining time T =). Calculated as the design alarm time Td). After that, the railroad crossing control device 6 performs the processes after step S203. Then, the railroad crossing control device 6 transmits the railroad crossing speed limit calculated in any of step S206, step S207, and step S208 to the ground control device 41 as shown in step S110 of FIG. Further, as shown in step S10 of FIG. 2, the ground control device 41 transmits the railroad crossing speed limit information including the railroad crossing speed limit to the on-board control device 31 together with the train control information.

FIG. 5 is a flowchart showing an example of a flow of train running control processing by the train control system 1 according to the first embodiment of the present invention. Hereinafter, an example of the processing flow of train running control by the train control system 1 according to the first embodiment of the present invention will be described with reference to FIG.

In step S301, the on-board control device 31 receives train control information including the latest temporary speed limit information, railroad crossing information, stop limit information, etc., and railroad crossing speed limit information from the ground control device 41. When the temporary speed limit information is changed from the temporary speed limit acquired by the ground control device 41 in step S1 of FIG. 2 to a new one, for example, the speed of the train 2 is equal to or less than the temporarily set first speed limit. From the state where the temporary speed limit, which is the first speed limit, is set to, the temporary speed limit, which is the second speed limit that limits to the second speed limit or less, which is different from the first speed limit, is newly added. When set, the on-board control device 31 receives train control information including the temporary speed limit information indicating the second speed limit from the ground control device 41 as the latest temporary speed limit information. Further, when the temporary speed limit acquired in step S1 of FIG. 2 is released, the on-board control device 31 indicates that the temporary speed limit has been released from the ground control device 41 instead of the temporary speed limit information. Acquire train control information including speed limit release information. Further, if there is no change or cancellation from the temporary speed limit which is the first speed limit acquired by the ground control device 41 in step S1 of FIG. 2, the on-board control device 31 uses the ground as the latest temporary speed limit information. The train control information including the temporary speed limit, which is the first speed limit, is received from the control device 41. If the temporary speed limit is not set, the train information does not include the temporary speed limit information.

Next, in step S302, the train running control unit 8 of the on-board control device 31 determines whether or not a temporary speed limit, which is a temporary speed limit, is set. Specifically, the train travel control unit 8 determines whether or not the train control information received in step S301 includes the temporary speed limit information. When the train travel control unit 8 determines in step S302 that the temporary speed limit is set (Yes), the railroad crossing speed limit indicated by the railroad crossing speed limit information received in step S301 in step S303 is the temporary speed. It is determined whether or not the speed limit is lower than the speed limit indicated by the limit information. If the temporary speed limit information has not been changed from the temporary speed limit, which is the first speed limit acquired by the ground control device 41 in step S1 of FIG. 2, in step S303, the train running control unit 8 takes the railroad crossing. It is determined whether the speed limit is less than the first speed limit. Further, when the temporary speed limit information is changed from the temporary speed limit which is the first speed limit acquired by the ground control device 41 in step S1 of FIG. 2 to the temporary speed limit which is the second speed limit, the step In S303, the train travel control unit 8 determines whether the railroad crossing speed limit is less than the second speed limit.

If the train travel control unit 8 determines in step S303 that the railroad crossing speed limit is less than the speed limit indicated by the temporary speed limit information (Yes), the train travels based on the railroad crossing speed limit in step S304. To control. The train running control unit 8 controls the running of the train 2 so as not to exceed the railroad crossing speed limit until the train 2 reaches the railroad crossing, for example. As a result, the train travel control unit 8 can control the travel of the train 2 so that the train 2 does not reach the railroad crossing 5 in a time shorter than the remaining time.

Further, in step S303, the train travel control unit 8 has the crossing speed limit not less than the speed limit indicated by the temporary speed limit information (No), that is, the crossing speed limit is equal to or higher than the speed limit indicated by the temporary speed limit information. If it is determined, in step S305, the running of the train 2 is controlled based on the speed limit indicated by the temporary speed limit information. For example, the train travel control unit 8 controls the travel of the train 2 so as not to exceed the speed limit indicated by the temporary speed limit information until the train 2 reaches the railroad crossing. If the temporary speed limit information is not changed from the temporary speed limit, which is the first speed limit acquired by the ground control device 41 in step S1 of FIG. 2, in step S305, the train running control unit 8 is set to the first speed limit. The running of the train 2 is controlled so as not to exceed the speed limit of 1. Further, when the temporary speed limit information is changed to the temporary speed limit which is the second speed limit in step S9 of FIG. 2, in step S305, the train running control unit 8 does not exceed the second speed limit. The running of the train 2 is controlled so as to. As a result, the train travel control unit 8 can control the travel of the train 2 so that the train 2 does not reach the railroad crossing 5 in a time shorter than the remaining time.

Further, in step S302, when the train running control unit 8 determines that the temporary speed limit is not set (No), in step S306, the train running control unit 8 controls the running of the train 2 based on the railroad crossing speed limit. The train running control unit 8 controls the running of the train 2 so as not to exceed the railroad crossing speed limit until the train 2 reaches the railroad crossing, for example. Even when the train travel control unit 8 receives the train control information including the temporary speed limit release information indicating that the temporary speed limit has been released in step S301, the train travel control unit 8 also receives the train control information in step S302. Judge that the temporary speed limit is not set. Therefore, when the train travel control unit 8 receives the temporary speed limit release information, it controls the travel of the train 2 based on the railroad crossing speed limit. As a result, the train travel control unit 8 can control the travel of the train 2 so that the train 2 does not reach the railroad crossing 5 in a time shorter than the remaining time.

In the train control system 1 according to the first embodiment of the present invention, the on-board control device 31 provides train information including information such as position information and speed information of the train 2 on the ground as shown in FIGS. 1 and 2. An example of transmitting to the railroad crossing control device 6 via the control device 41 is shown. Further, the railroad crossing control device 6 shows an example of transmitting railroad crossing information and railroad crossing speed limit information to the on-board control device 31 via the ground control device 41. However, the flow of transmission / reception of train information, railroad crossing information, and railroad crossing speed limit information is not limited to FIG. For example, the train control system 1 is configured to enable wireless communication between the railroad crossing control device 6 and the on-board control device 31, so that the on-board control device 31 wirelessly communicates train information without going through the ground control device 41. , It may be transmitted to the railroad crossing control device 6. Further, the railroad crossing control device 6 may transmit the railroad crossing information and the railroad crossing speed limit information to the on-board control device 31 by wireless communication without going through the ground control device 41.

According to the train control system 1 according to the first embodiment of the present invention, the output of the alarm is based on the current time information indicating the current time and the alarm output time information indicating the time when the output of the alarm at the railroad crossing 5 is started. The remaining time calculation unit 10 for calculating the remaining time indicating the remaining time required to secure the design alarm time preset as the reference time from the start of the train 2 to the railroad crossing, and the train 2 Since the train running control unit 8 that controls the running of the train 2 so as not to reach the railroad crossing 5 in a time shorter than the remaining time is provided, it is possible to prevent the train 2 from reaching the railroad crossing before the lapse of the design warning time. can do.

According to the train control system 1 according to the first embodiment of the present invention, the output of the alarm is based on the current time information indicating the current time and the alarm output time information indicating the time when the output of the alarm at the railroad crossing 5 is started. The remaining time calculation unit 10 for calculating the remaining time indicating the remaining time required to secure the design alarm time preset as the reference time from the start of the train 2 to the railroad crossing 5, and the train 2 As a railroad crossing limit speed, which is a speed that is limited until the railroad crossing reaches the railroad crossing 5, the railroad crossing limit speed that calculates the first railroad crossing limit speed based on the position information of the train 2, the position information of the railroad crossing 5, and the remaining time. Since the calculation unit 12 and the train travel control unit 8 that controls the travel of the train 2 based on the first railroad crossing limit speed are provided, the train 2 reaches the railroad crossing before the lapse of the design warning time. Can be prevented.

Further, according to the train control system 1 according to the first embodiment of the present invention, when the first speed limit that temporarily limits the speed of the train 2 to the first speed limit or less is set, the train 2 Is provided with a crossing arrival determination unit 11 for determining whether or not to reach the crossing 5 when traveling at the first speed limit for the remaining time, and the crossing arrival determination unit 11 determines that the train 2 does not reach the crossing 5. In this case, the crossing speed limit calculation unit 12 calculates the first speed limit as the second speed limit without calculating the first speed limit, and the train running control unit 8 Controls the running of the train 2 based on the second speed limit, and when it is determined that the train 2 reaches the speed limit 5, the speed limit calculation unit 12 determines the first speed limit as the speed limit. Since the train running control unit 8 calculates the crossing speed limit and controls the running of the train 2 based on the first crossing speed limit, the train 2 is designed even when the first speed limit is set. It is possible to prevent the railroad crossing 5 from being reached before the lapse of the warning time, and to allow the train 2 to travel efficiently.

Further, according to the train control system 1 according to the first embodiment of the present invention, the train travels when the first speed limit that temporarily limits the speed of the train 2 to the first speed limit or less is set. The control unit 8 compares the speed limit calculated by the speed limit calculation unit 12 with the first speed limit, and if the speed limit is equal to or higher than the first control speed, the control unit 8 is based on the first speed limit. , The running of the train 2 is controlled, and when the crossing speed limit is less than the first speed limit, the running of the train 2 is controlled based on the crossing speed limit, so that the speed of the train 2 is temporarily set to the first speed. In addition to the first speed limit that limits the speed to the speed limit or less, the train 2 can be run while considering the speed limit of the crossing.

Further, according to the train control system 1 according to the first embodiment of the present invention, when the first speed limit is released after the start of the alarm output, the train travel control unit 8 is operated by the railroad crossing speed limit calculation unit 12. Since the running of the train 2 is controlled based on the calculated railroad crossing speed limit, even if the first speed limit is released after the start of the alarm output, the train 2 does not exceed the speed and the design warning time is reached. It is possible to prevent the railroad crossing 5 from being reached before the elapse.

Further, according to the train control system 1 according to the first embodiment of the present invention, a second speed limit is set which temporarily limits the speed of the train 2 to a speed below the second speed limit after the start of the output of the alarm. In that case, the train running control unit 8 compares the speed limit calculated by the speed limit calculation unit 12 with the second speed limit, and if the speed limit is equal to or higher than the second control speed, the second speed limit is used. The running of the train 2 is controlled based on the speed limit, and when the crossing speed limit is less than the second speed limit, the running of the train 2 is controlled based on the speed limit. Therefore, after the start of the alarm output. Even if a second speed limit is set that temporarily limits the speed of train 2 to below the second speed limit, train 2 will reach crossing 5 before the design warning time elapses without overspeeding. Can be prevented.

Embodiment 2.
Next, the train control system 1a according to the second embodiment of the present invention will be described. FIG. 6 is a block diagram showing an example of the configuration of the train control system 1a according to the second embodiment of the present invention. The same components as those of the train control system 1 according to the first embodiment of the present invention are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 6, in the train control system 1a according to the second embodiment, the ground control device 41a, not the railroad crossing control device 6a, has the remaining time calculation unit 10, the railroad crossing arrival determination unit 11, and the railroad crossing speed limit calculation unit. It has 12 and.

FIG. 7 is a sequence diagram showing an example of a processing procedure by the train control system 1a according to the second embodiment of the present invention. In the train control system 1a according to the second embodiment, as shown in FIG. 7, the processing procedure from step S1 to step S6 is the same as the processing procedure by the train control system 1 according to the first embodiment shown in FIG. The same is true. In the train control system 1a according to the second embodiment, in step S6, the railroad crossing control device 6a sends an alarm output command to the railroad crossing so as to start the output of the alarm to the railroad crossing 5, and then in step S12, the railroad crossing. The alarm output time information indicating the alarm output time, which is the time when the alarm output of 5 is started, and the railroad crossing information acquired in step S4 are transmitted to the ground control device 41a. If there is no alarm output time information before the start of the alarm output of the railroad crossing 5, the railroad crossing control device 6a cannot transmit the alarm output time information, and therefore transmits the railroad crossing information.

Then, in step S12, the ground control device 41a acquires the alarm output time information and the railroad crossing information from the railroad crossing control device 6a, and then in step S13, the railroad crossing limit is the speed limit until the train 2 reaches the railroad crossing 5. Calculate the speed. The ground control device 41a calculates the railroad crossing speed limit after acquiring the railroad crossing information when there is no warning output time information before the start of the warning output of the railroad crossing 5. The method of calculating the railroad crossing speed limit by the ground control device 41a is the same as the method of calculating the railroad crossing speed limit by the railroad crossing control device 6 of the train control system 1 according to the first embodiment shown in FIG. Then, the detailed description thereof will be omitted. However, the ground control device 41a stores the position information of the railroad crossing 5 in order to perform the processing by the railroad crossing arrival determination unit 11 in steps S204 and S208 of FIG. 4 and the processing by the railroad crossing speed limit calculation unit 12 in step S206. are doing.

After the process of step S13, the train control system 1a according to the second embodiment temporarily adjusts the speed of the train 2 in step 9 in the same manner as the train control system 1 according to the first embodiment. A second speed limit that is different from the first speed limit and is different from the first speed limit from the state in which the temporary speed limit, which is the first speed limit that limits the speed to the set first speed limit or less, is set. When the temporary speed limit, which is a limit, is newly set, the temporary speed limit information indicating the second speed limit is acquired from the speed limit setting terminal 9. When the temporary speed limit acquired in step S1 is released, the ground control device 41a releases the temporary speed limit indicating that the temporary speed limit has been released instead of the temporary speed limit information from the speed limit setting terminal 9. Get information. Further, if there is no change or cancellation from the temporary speed limit acquired in step S1, the ground control device 41a may not acquire new information from the speed limit setting terminal 9.

Then, in step S10, the ground control device 41a transfers the train control information including the latest changed temporary speed limit information, railroad crossing information, stop limit information, etc., and the railroad crossing speed limit information calculated in step S13. It is transmitted to the upper control device 31a. If the temporary speed limit information is not changed from the temporary speed limit information acquired in step S1, the ground control device 41a controls the temporary speed limit information acquired in step S1 as the latest temporary speed limit information on the vehicle. It transmits to the device 31a. Further, when the ground control device 41a has acquired the temporary speed limit release information instead of the temporary speed limit information in step S9, the on-board control device obtains the temporary speed limit release information instead of the latest temporary speed limit information. It is transmitted to 31a. In step S11, the train travel control unit 8 of the on-board control device 31a controls the travel of the train 2 based on the train control information and the railroad crossing speed limit information received from the ground control device 41a. The travel control process of the train 2 by the train travel control unit 8 is performed, for example, based on the flowchart shown in FIG. 5, as in the train control system 1 according to the first embodiment. As a result, the train control system 1a can control the running of the train 2 so that the train 2 does not reach the railroad crossing 5 in a time shorter than the remaining time.

FIG. 8 is a flowchart showing an example of a flow of railroad crossing control processing by the train control system 1a according to the second embodiment of the present invention. As shown in FIG. 8, the railroad crossing control device 6a of the train control system 1a according to the second embodiment is a railroad crossing control device 6a of the train control system 1 according to the third embodiment from step S401 to step S408. The same process as the process from step S101 to step S108 according to step 6 is performed. In the railroad crossing control device 6a of the railroad crossing control system 1a according to the second embodiment, after storing the alarm output time information indicating the alarm output time which is the time when the alarm output of the railroad crossing 5 is started in step S408, step S409 , The alarm output time information and the railroad crossing information are transmitted to the ground control device 41a. Further, in step 406, if the railroad crossing control device 6a determines that the railroad crossing arrival predicted time calculated in step S405 is not less than or equal to the design alarm time (No), the railroad crossing 5 alarm output is not started and the alarm output time. Therefore, in step S409, the railroad crossing information is transmitted to the ground control device 41a.

Further, in step S404, when the railroad crossing control device 6a determines that the railroad crossing 5 has already output an alarm (Yes), the railroad crossing control device 6 of the train control system 1 according to the first embodiment shown in FIG. 3 is used. Similar to the process of step S111, in step S410, it is determined whether or not the train 2 has passed the railroad crossing. If the railroad crossing control device 6a determines in step S410 that the train 2 has not yet passed the railroad crossing (No), the railroad crossing control device 6a transmits alarm output time information and railroad crossing information to the ground control device 41a in step S409.

When the railroad crossing control device 6a determines in step S410 that the train 2 has passed the railroad crossing (Yes), in step S411, the railroad crossing control device 6a transmits an alarm output stop command to the railroad crossing 5 and outputs an alarm for the railroad crossing 5. The train is stopped, and in step S412, the alarm output time indicating the time when the alarm output of the railroad crossing 5 is started is deleted from the storage device. Since the railroad crossing control device 6a does not have an alarm output time, the railroad crossing information is transmitted to the ground control device 41a in step S409.

In the train control system 1a according to the second embodiment of the present invention, the on-board control device 31a provides train information including information such as position information and speed information of the train 2 on the ground as shown in FIGS. 6 and 7. An example of transmitting to the railroad crossing control device 6a via the control device 41a is shown. However, the flow of sending and receiving train information is not limited to FIGS. 6 and 7. For example, the train control system 1a configures the railroad crossing control device 6a and the on-board control device 31a to enable wireless communication, so that the on-board control device 31a wirelessly communicates train information without going through the ground control device 41a. , It may be transmitted to the railroad crossing control device 6a.

According to the train control system 1a according to the second embodiment of the present invention, the output of the alarm is based on the current time information indicating the current time and the alarm output time information indicating the time when the output of the alarm at the railroad crossing 5 is started. The remaining time calculation unit 10 for calculating the remaining time indicating the remaining time required to secure the design alarm time preset as the reference time from the start of the train 2 to the railroad crossing, and the train 2 Since the train running control unit 8 that controls the running of the train 2 so as not to reach the railroad crossing 5 in a time shorter than the remaining time is provided, it is possible to prevent the train 2 from reaching the railroad crossing before the lapse of the design warning time. can do.

According to the train control system 1a according to the second embodiment of the present invention, the ground control device 41a, not the railroad crossing control device 6a, causes the remaining time calculation unit 10, the railroad crossing arrival determination unit 11, and the railroad crossing speed limit calculation unit 12. Since it is provided, it is possible to reduce the processing load of the railroad crossing control device 6a.

Embodiment 3.
Next, the train control system 1b according to the third embodiment of the present invention will be described. FIG. 9 is a block diagram showing an example of the configuration of the train control system 1b according to the third embodiment of the present invention. The same components as those of the

train control systems

1 and 1a according to the first or second embodiment of the present invention are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 9, in the train control system 1b according to the third embodiment, unlike the

train control systems

1 and 1a according to the first and second embodiments, the on-board control device 31b has the remaining time calculation unit 10 and the remaining time calculation unit 10. It includes a railroad crossing arrival determination unit 11 and a railroad crossing speed limit calculation unit 12.

FIG. 10 is a sequence diagram showing an example of a processing procedure by the train control system 1b according to the third embodiment of the present invention. In the train control system 1b according to the third embodiment, as shown in FIG. 10, the processing procedure from step S1 to step S6 is the same as the processing procedure by the train control system 1 according to the first embodiment of FIG. Is. In the train control system 1b according to the third embodiment, in step S6, the railroad crossing control device 6b transmits an alarm output command to the railroad crossing so as to start the output of the alarm for the railroad crossing, and then according to the second embodiment. Similar to the train control system 1a, in step S12, the alarm output time information indicating the alarm output time, which is the time when the alarm output of the railroad crossing 5 is started, and the railroad crossing information acquired in step S4 are transmitted to the ground control device 41b. To do. If there is no alarm output time information before the start of the alarm output of the railroad crossing 5, the railroad crossing control device 6b cannot transmit the alarm output time information, and therefore transmits the railroad crossing information.

Further, as shown in FIG. 10, the ground control device 41b is different from the first speed limit from the state in which the temporary speed limit, which is the first speed limit acquired in step S1, is set. When the temporary speed limit, which is the speed limit of 2, is newly set, in step S14, the temporary speed limit information indicating the second speed limit is acquired from the speed limit setting terminal 9. In the ground control device 41b, when the temporary speed limit acquired in step S1 is released as in the ground control device 41 of the train control system 1 according to the first embodiment, the temporary speed limit is limited from the speed limit setting terminal 9. Instead of the information, the temporary speed limit release information indicating that the temporary speed limit has been released is acquired. Further, if there is no change or cancellation from the temporary speed limit acquired in step S1, the ground control device 41b may not acquire new information from the speed limit setting terminal 9.

Then, in step S15, the ground control device 41b transfers the train control information including the latest changed temporary speed limit information, railroad crossing information, stop limit information, etc., and the alarm output time information to the on-board control device 31b. Send. If the temporary speed limit information is not changed from the temporary speed limit information acquired in step S1, the ground control device 41b uses the temporary speed limit information acquired in step S1 as the latest temporary speed limit information on the vehicle. It transmits to the device 31b. Further, when the ground control device 41b has acquired the temporary speed limit release information instead of the temporary speed limit information in step S14, the on-board control device obtains the temporary speed limit release information instead of the latest temporary speed limit information. It is transmitted to 31b. Further, if the warning output time information is not received in step S12, the ground control device 41b transmits the train control information to the on-board control device 31b because it is before the start of the warning output of the railroad crossing 5.

In step S16, the on-board control device 31b calculates the railroad crossing speed limit, which is the speed limited until the train 2 reaches the railroad crossing, after acquiring the train information and the alarm output time information from the ground control device 41b. The on-board control device 31b calculates the railroad crossing speed limit after acquiring the train control information when there is no warning output time information before the start of the warning output of the railroad crossing 5. The method of calculating the railroad crossing speed limit by the on-board control device 31b is the same as the method of calculating the railroad crossing speed limit by the railroad crossing control device 6 of the train control system 1 according to the first embodiment shown in FIG. Here, the detailed description thereof will be omitted. However, the on-board control device 31b obtains the position information of the railroad crossing 5 in order to perform the processing by the railroad crossing arrival determination unit 11 in steps S204 and S208 of FIG. 4 and the processing by the railroad crossing speed limit calculation unit 12 in step S206. I remember. The on-board control device 31b may receive the position information of the railroad crossing 5 from the railroad crossing control device 6b or the ground control device 41b. Then, in step S17, the train running control unit 8 of the on-board control device 31b controls the running of the train 2 based on the train control information received from the ground control device 41b and the railroad crossing speed limit information calculated in step S16. To do. The travel control process of the train 2 by the train travel control unit 8 is performed, for example, based on the flowchart shown in FIG. 5, as in the train control system 1 according to the first embodiment. As a result, the train control system 1b can control the running of the train 2 so that the train 2 does not reach the railroad crossing 5 in a time shorter than the remaining time. However, the railroad crossing speed limit information in step S301 in FIG. 5 is calculated not by the ground control device 41b but by the on-board control device 31b.

In the train control system 1b according to the third embodiment of the present invention, the on-board control device 31b provides train information including information such as position information and speed information of the train 2 to the ground control device as shown in FIGS. 9 and 10. An example of transmitting to the railroad crossing control device 6b via 41b is shown. Further, the railroad crossing control device 6b shows an example in which the railroad crossing information and the alarm output time information are transmitted to the on-board control device 31b via the ground control device 41b. However, the flow of transmission / reception of train information, railroad crossing information, and alarm output time information is not limited to FIGS. 9 and 10. For example, the train control system 1b configures the railroad crossing control device 6b and the on-board control device 31b to enable wireless communication, so that the on-board control device 31b wirelessly communicates train information without going through the ground control device 41b. , It may be transmitted to the railroad crossing control device 6b. Further, the railroad crossing control device 6b may transmit the railroad crossing information and the alarm output time information to the on-board control device 31b by wireless communication without going through the ground control device 41b.

According to the train control system 1b according to the third embodiment of the present invention, the output of the alarm is based on the current time information indicating the current time and the alarm output time information indicating the time when the output of the alarm at the railroad crossing 5 is started. The remaining time calculation unit 10 for calculating the remaining time indicating the remaining time required to secure the design alarm time preset as the reference time from the start of the train 2 to the railroad crossing, and the train 2 Since the train running control unit 8 that controls the running of the train 2 so as not to reach the railroad crossing 5 in a time shorter than the remaining time is provided, it is possible to prevent the train 2 from reaching the railroad crossing before the lapse of the design warning time. can do.

According to the train control system 1b according to the third embodiment of the present invention, the on-board control device 31b, not the railroad crossing control device 6b, includes the remaining time calculation unit 10, the railroad crossing arrival determination unit 11, and the railroad crossing speed limit calculation unit 12. Therefore, it is possible to reduce the processing load of the railroad crossing control device 6b.

In the train control systems 1 to 1b according to the first to third embodiments of the present invention, the remaining time calculation unit 10, the railroad crossing arrival determination unit 11, and the railroad crossing speed limit calculation unit 12 are all provided in the same device. An example is shown. However, it is not necessary that the remaining time calculation unit 10, the railroad crossing arrival determination unit 11, and the railroad crossing speed limit calculation unit 12 are all provided in the same device. For example, the remaining time calculation unit 10 is provided in at least one of the on-board control device 31 (31a, 31b), the ground control device 41 (41a, 41b), and the railroad crossing control device 6 (6a, 6b). It may be configured so that the calculated remaining time information can be transmitted to other devices other than itself as needed. Similarly, the railroad crossing arrival determination unit 11 is provided in at least one of the on-board control device 31 (31a, 31b), the ground control device 41 (41a, 41b), and the railroad crossing control device 6 (6a, 6b), and the remainder is provided. It may be configured so that the remaining time information calculated by the time calculation unit 10 can be received and the determination result can be transmitted to other devices other than itself as needed. Similarly, the railroad crossing speed limit calculation unit 12 is also provided in at least one of the on-board control device 31 (31a, 31b), the ground control device 41 (41a, 41b), and the railroad crossing control device 6 (6a, 6b). It is configured so that it can receive the remaining time information calculated by the remaining time calculation unit 10 and the judgment result determined by the railroad crossing arrival determination unit 11 and transmit the calculated railroad crossing speed limit to other devices other than itself as needed. You may. Further, the train travel control unit 8 is provided not in the on-board control device 31 (31a, 31b) but in the ground control device 41 (41a, 41b) or the railroad crossing control device 6 (6a, 6b), and the ground control device 41 is provided. The running of the train 2 may be controlled from (41a, 41b) or the railroad crossing control device 6 (6a, 6b) via a wireless device.

Embodiment 4.
Next, the train control system 1c according to the fourth embodiment of the present invention will be described. FIG. 11 is a block diagram showing an example of the configuration of the train control system 1c according to the fourth embodiment of the present invention. The same components as those of the train control systems 1 to 1b according to the first to third embodiments of the present invention are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 11, in the train control system 1c according to the fourth embodiment, the railroad crossing control device 6c includes a remaining time calculation unit 10.

FIG. 12 is a sequence diagram showing an example of a processing procedure by the train control system 1c according to the fourth embodiment of the present invention. In the train control system 1c according to the fourth embodiment, as shown in FIG. 12, the processing procedure from step S1 to step S6 is the same as the processing procedure by the train control system 1 according to the first embodiment of FIG. Is. In the train control system 1c according to the fourth embodiment, in step S6, the railroad crossing control device 6c sends an alarm output command to the railroad crossing so as to start the output of the alarm to the railroad crossing 5, and then in step S18, the remainder. The time calculation unit 10 calculates the remaining time indicating the remaining time required to secure the design alarm time. Then, in step S19, the railroad crossing control device 6 transmits the railroad crossing information and the remaining time information indicating the remaining time to the ground control device 41c.

In step S20, the ground control device 41c has a second speed limit different from the first speed limit from the state in which the temporary speed limit, which is the first speed limit acquired in step S1, is set. When a certain temporary speed limit is newly set, the temporary speed limit information indicating the second speed limit is acquired from the speed limit setting terminal 9. In the ground control device 41c, when the temporary speed limit acquired in step S1 is released as in the ground control device 41 of the train control system 1 according to the first embodiment, the temporary speed limit is limited from the speed limit setting terminal 9. Instead of the information, the temporary speed limit release information indicating that the temporary speed limit has been released is acquired. Further, if there is no change or cancellation from the temporary speed limit acquired in step S1, the ground control device 41c may not acquire new information from the speed limit setting terminal 9.

Then, in step S21, the ground control device 41c transmits the train control information including the latest changed temporary speed limit information, railroad crossing information, stop limit information, etc., and the remaining time information to the on-board control device 31c. To do. If the temporary speed limit information is not changed from the temporary speed limit information acquired in step S1, the ground control device 41c uses the temporary speed limit information acquired in step S1 as the latest temporary speed limit information on the vehicle. It is transmitted to the device 31c. Further, when the ground control device 41c has acquired the temporary speed limit release information instead of the temporary speed limit information in step S20, the on-board control device uses the temporary speed limit release information instead of the latest temporary speed limit information. It is transmitted to 31c. Then, in step S22, the train travel control unit 8 of the on-board control device 31c controls the travel of the train 2 based on the train control information and the remaining time information received from the ground control device 41c.

FIG. 13 is a flowchart showing an example of a flow of railroad crossing control processing by the train control system 1c according to the fourth embodiment of the present invention. As shown in FIG. 13, the railroad crossing control device 6c of the train control system 1c according to the fourth embodiment is a railroad crossing control device 6c of the train control system 1 according to the first embodiment shown in FIG. 3 from step S501 to step S508. The same process as the process from step S101 to step S108 according to step 6 is performed. The railroad crossing control device 6c of the train control system 1c according to the fourth embodiment stores the warning output time information indicating the warning output time, which is the time when the warning output of the railroad crossing 5 is started in step S108, and then steps S509. In, the remaining time is calculated. Then, in step S510, the railroad crossing control device 6c transmits the railroad crossing information and the remaining time information indicating the remaining time to the ground control device 41c. Further, in step 506, when the railroad crossing control device 6c determines (No) that the railroad crossing arrival predicted time calculated in step S505 is not equal to or less than the design alarm time, the railroad crossing control device 6c calculates the remaining time in step S509. Then, in step S510, the railroad crossing control device 6c transmits the railroad crossing information and the remaining time information to the ground control device 41c.

Further, in step S504, when the railroad crossing control device 6c determines that the railroad crossing 5 has already output an alarm (Yes), the railroad crossing control device 6 of the train control system 1 according to the first embodiment shown in FIG. 3 is used. Similar to the process of step S111, in step S511, it is determined whether or not the train 2 has passed the railroad crossing. If the railroad crossing control device 6c determines in step S511 that the train 2 has not yet passed the railroad crossing (No), the railroad crossing control device 6c calculates the remaining time in step S509. Then, in step S510, the railroad crossing control device 6c transmits the railroad crossing information and the remaining time information to the ground control device 41c.

When the railroad crossing control device 6c determines in step S511 that the train 2 has passed the railroad crossing (Yes), in step S512, the railroad crossing control device 6c transmits an alarm output stop command to the railroad crossing 5 and outputs an alarm for the railroad crossing 5. The train is stopped, and in step S513, the alarm output time indicating the time when the alarm output of the railroad crossing 5 is started is deleted from the storage device. Then, in S509, the railroad crossing control device 6c calculates the remaining time. Then, in step S510, the railroad crossing control device 6c transmits the railroad crossing information and the remaining time information to the ground control device 41c.

FIG. 14 is a flowchart showing an example of a flow of calculation processing of the remaining time by the train control system 1c according to the fourth embodiment of the present invention. As shown in FIG. 14, the remaining time calculation unit 10 of the railroad crossing control device 6c first determines in step S601 whether or not the alarm output time information is stored. When the remaining time calculation unit 10 determines in step S601 that the alarm output time information is stored (Yes), the design is made using the current time information indicating the current time and the alarm output time information in step S602. Calculate the remaining time indicating the remaining time required to secure the alarm time. The remaining time calculation unit 10 calculates the remaining time T by subtracting the difference between the current time and the alarm output time from the design alarm time Td, for example, as shown in the above formula (1).

Further, in step S601, when the remaining time calculation unit 10 determines that the alarm output time information is not stored (No), for example, the remaining time T is set to the design alarm time Td (remaining time T = design alarm time Td). ). After that, the railroad crossing control device 6c transmits the remaining time calculated in step S602 to the ground control device 41c together with the railroad crossing information as shown in step S510 of FIG.

FIG. 15 is a flowchart showing an example of a flow of processing of train running control by the train control system 1c according to the fourth embodiment of the present invention. As shown in FIG. 15, the on-board control device 31c includes train control information including the latest temporary speed limit information, railroad crossing information, stop limit information, and the like, and remaining time information from the ground control device 41c in step S701. To receive. The temporary speed limit information is a second speed limit different from the first speed limit from the state in which the temporary speed limit, which is the first speed limit acquired by the ground control device 41c in step S1 of FIG. 12, is set. When the temporary speed limit is newly set, the on-board control device 31c receives the train control information including the temporary speed limit information indicating the second speed limit from the ground control device 41c as the latest temporary speed limit information. To do. Further, when the temporary speed limit acquired in step S1 of FIG. 12 is released, the on-board control device 31c indicates that the temporary speed limit has been released from the ground control device 41c instead of the temporary speed limit information. Acquire train control information including speed limit release information. Further, if there is no change or release from the temporary speed limit which is the first speed limit acquired by the ground control device 41c in step S1, the on-board control device 31c uses the ground control device 41c as the latest temporary speed limit information. Receives train control information including the temporary speed limit, which is the first speed limit. If the temporary speed limit is not set, the train information does not include the temporary speed limit information.

Next, in step S702, the train running control unit 8 of the on-board control device 31c determines whether or not a temporary speed limit, which is a temporary speed limit, is set. Specifically, the train travel control unit 8 determines whether or not the train control information received in step S701 includes the temporary speed limit information.

If the train travel control unit 8 determines in step S702 that the temporary speed limit is set (Yes), the train 2 travels the remaining time T at the speed limit indicated by the temporary speed limit information in step S703. The mileage L1 is calculated. If the temporary speed limit information has not been changed from the temporary speed limit, which is the first speed limit acquired by the ground control device 41c in step S1 of FIG. 12, in step S703, the train travel control unit 8 is set to the first speed limit. The mileage L1 when the remaining time T is traveled at the speed limit of 1 is calculated. If the temporary speed limit information is changed from the temporary speed limit which is the first speed limit acquired by the ground control device 41c in step S1 of FIG. 12 to the temporary speed limit which is the second speed limit, the step is taken. In S703, the train travel control unit 8 calculates the travel distance L1 when the train travels the remaining time T at the second speed limit.

Then, in step S704, the train travel control unit 8 determines whether or not the position of the train 2 when traveling by a distance L1 from the current train position is before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5. To do. Specifically, in the train travel control unit 8, for example, the position of the train 2 obtained by adding the mileage L1 calculated in step S703 to the current train position indicated by the position information of the train 2 is the railroad crossing indicated by the position information of the railroad crossing 5. It is determined whether or not the position of 5 has been reached. The on-board control device 31c stores the position information of the railroad crossing 5 in advance. Further, the on-board control device 31c may receive the position information of the railroad crossing 5 from the railroad crossing control device 6c or the ground control device 41c.

In step S704, the train travel control unit 8 does not have the position of the train 2 before the position of the railroad crossing 5 indicated by the position information of the railroad crossing when traveling by the distance L1 from the current train position (No), that is, the railroad crossing 5 If it is determined that the position of the above is reached, the running of the train 2 is controlled based on the remaining time in step S705. The train travel control unit 8 controls the travel of the train 2 by generating, for example, a travel control pattern in which the train 2 does not reach the railroad crossing in a time shorter than the remaining time. For example, as shown in the above equation (2), the train travel control unit 8 divides the distance between the front position of the current train 2 and the position of the railroad crossing 5 by the remaining time T to limit the railroad crossing speed. V1 may be calculated and controlled so that the train 2 runs at the railroad crossing speed limit V1 or less. The method of generating the traveling control pattern is not particularly limited, and conventionally known ones may be used.

In step S704, the train travel control unit 8 has the position of the train 2 when traveling a distance L1 from the current train position before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5 (Yes), that is, the railroad crossing. If it is determined that the position 5 is not reached, in step S706, the running of the train 2 is controlled based on the speed limit indicated by the temporary speed limit information. For example, the train travel control unit 8 controls the travel of the train 2 so as not to exceed the speed limit indicated by the temporary speed limit information until the train 2 reaches the railroad crossing. If the temporary speed limit information has not been changed from the temporary speed limit, which is the first speed limit acquired by the ground control device 41c in step S1 of FIG. 12, in step S706, the train travel control unit 8 is set to the first speed limit. The running of the train 2 is controlled so as not to exceed the speed limit of 1. Further, when the temporary speed limit information is changed from the temporary speed limit which is the first speed limit acquired by the ground control device 41c in step S1 of FIG. 12 to the temporary speed limit which is the second speed limit, the step In S706, the train travel control unit 8 controls the travel of the train 2 so as not to exceed the second speed limit.

When the train travel control unit 8 determines in step S702 that the temporary speed limit is not set (No), when the train 2 travels the remaining time T at the maximum allowable speed in the current section in step S707. The mileage L2 of is calculated. Then, in step S708, the train travel control unit 8 determines whether or not the position of the train 2 when traveling by a distance L2 from the current train position is before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5. To do. Specifically, in the train travel control unit 8, the position of the train 2 obtained by adding the mileage L2 calculated in step S707 to the current train position indicated by the position information of the train 2 is the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5. Determine if the position has been reached. Even when the train running control unit 8 receives the train control information including the temporary speed limit release information indicating that the temporary speed limit has been released in step S701, the temporary speed limit is set in step S702. It is determined that there is no (No). Therefore, when the train travel control unit 8 receives the temporary speed limit release information, the train travel control unit 8 performs the process of step S707.

In step S708, the train travel control unit 8 has the position of the train 2 when traveling a distance L2 from the current train position before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5 (Yes), that is, the railroad crossing. If it is determined that the position 5 is not reached, in step S709, the running of the train 2 is controlled based on the maximum permissible speed in the existing section. The train running control unit 8 controls the running of the train 2 so as not to exceed the maximum permissible speed until the train 2 reaches the railroad crossing, for example.

In step S708, the train travel control unit 8 does not have the position of the train 2 before the position of the railroad crossing 5 indicated by the position information of the railroad crossing 5 when the train travels by the distance L2 from the current train position (No), that is, the railroad crossing. When it is determined that the position of 5 is reached, the running of the train 2 is controlled based on the remaining time in step S705.

In the train control system 1c according to the fourth embodiment of the present invention, the on-board control device 31c provides train information including information such as the position information of the train 2 and speed information on the ground as shown in FIGS. 11 and 12. An example of transmitting to the railroad crossing control device 6c via the control device 41c is shown. Further, the railroad crossing control device 6c shows an example of transmitting railroad crossing information and remaining time information to the on-board control device 31c via the ground control device 41c. However, the flow of transmitting and receiving train information, railroad crossing information, and remaining time information is not limited to FIGS. 11 and 12. For example, the train control system 1c configures the railroad crossing control device 6c and the on-board control device 31c to enable wireless communication, so that the on-board control device 31c wirelessly communicates train information without going through the ground control device 41c. , It may be transmitted to the railroad crossing control device 6c. Further, the railroad crossing control device 6c may transmit the railroad crossing information and the remaining time information to the on-board control device 31c by wireless communication without going through the ground control device 41c.

Further, in the train control system 1c according to the fourth embodiment of the present invention, an example is shown in which the railroad crossing control device 6c is provided with the remaining time calculation unit 10, but the remaining time calculation unit 10 is the ground control device 41c or the vehicle. It may be provided in the upper control device 31c. When the ground control device 41c is provided with the remaining time calculation unit 10, the ground control device 41c may receive the alarm output time information from the railroad crossing control device 6c as in the case shown in step S12 of FIG. good. Further, when the on-board control device 31c is provided with the remaining time calculation unit 10, the on-board control device 31c is transmitted from the railroad crossing control device 6c to the ground control device 41c as shown in steps S12 and S15 of FIG. The alarm output time information may be received. The on-board control device 31c is configured to enable wireless communication with the railroad crossing control device 6c so that the alarm output time information can be received from the railroad crossing control device 6c by wireless communication without going through the ground control device 41c. You may.

According to the train control system 1c according to the fourth embodiment of the present invention, the output of the alarm is based on the current time information indicating the current time and the alarm output time information indicating the time when the output of the alarm at the railroad crossing 5 is started. The remaining time calculation unit 10 for calculating the remaining time indicating the remaining time required to secure the design alarm time preset as the reference time from the start of the train 2 to the railroad crossing, and the train 2 Since the train running control unit 8 that controls the running of the train 2 so as not to reach the railroad crossing in a time shorter than the remaining time is provided, it is possible to prevent the train 2 from reaching the railroad crossing before the lapse of the design warning time. can do.

According to the train control system 1c according to the fourth embodiment of the present invention, when the first speed limit that temporarily limits the speed of the train 2 to the first speed limit or less is set, the train running control unit 8 determines whether or not the train 2 reaches the crossing 5 when traveling in the remaining time at the first speed limit, and if it is determined that the train 2 does not reach the crossing 5, it is based on the first speed limit. , When the running of the train 2 is controlled and it is determined that the train 2 reaches the crossing 5, the running of the train 2 is controlled so that the train 2 does not reach the crossing in a time shorter than the remaining time. Even when the speed is set, it is possible to prevent the train 2 from reaching the railroad crossing before the lapse of the design alarm time, and the train 2 can be run efficiently.

According to the train control system 1c according to the fourth embodiment of the present invention, when the first speed limit is released after the start of the output of the alarm, the train travel control unit 8 tells the train 2 to take less time than the remaining time. Since the running of the train 2 is controlled so as not to reach the railroad crossing, even if the first speed limit is released after the start of the alarm output, the train 2 does not exceed the speed and the railroad crossing is performed before the design warning time elapses. Can be prevented from reaching.

According to the train control system 1c according to the fourth embodiment of the present invention, when the second speed limit that temporarily limits the speed of the train 2 to the second speed limit or less is set after the start of the output of the alarm. , The train running control unit 8 determines whether or not the train 2 reaches the crossing 5 when traveling the remaining time at the second time limit, and if it determines that the train 2 does not reach the crossing 5, the second When the running of the train 2 is controlled based on the speed limit and it is determined that the train 2 reaches the crossing 5, the running of the train 2 is controlled so that the train 2 does not reach the crossing in a time shorter than the remaining time. , Even if a second speed limit is set that temporarily limits the speed of train 2 below the second speed limit after the start of the alarm output, train 2 does not exceed the speed and the design warning time elapses. It is possible to prevent the train from reaching the railroad crossing before.

Note that each device included in the train control systems 1 to 1c according to the first to fourth embodiments of the present invention includes, for example, a processor and a memory, and the operation of each device can be realized by software. FIG. 16 is a diagram showing an example of a hardware configuration that realizes each device included in the train control systems 1 to 1c according to the first to fourth embodiments of the present invention. As shown in FIG. 16, each device included in the train control systems 1 to 1c according to the first to fourth embodiments of the present invention includes a processor 13 and a memory 14, and the processor 13 and the memory 14 are a system bus 15. Is connected by. The processor 13 performs calculation and control by software using the input data, and the memory 14 stores the input data or data and programs necessary for the processor 13 to perform calculation and control. A plurality of

processors

13 and 14 may be provided.

Further, the present invention is not limited to the above-described embodiment, and each embodiment can be appropriately changed or omitted without departing from the scope of the idea of the present invention.

1-1c train control system, 2 trains, 3-3c on-board equipment, 4-4c ground equipment, 5 railroad crossings, 6-6c railroad crossing control equipment, 7 networks, 8 train running control units, 9 speed limit setting terminals, 10 residuals Time calculation unit, 11 railroad crossing arrival determination unit, 12 railroad crossing speed limit calculation unit, 31-31c on-board control device, 32 on-board radio device, 41-41c ground control device, 42 terrestrial radio device

Claims

Based on the current time information indicating the current time and the alarm output time information indicating the time when the warning output of the railroad crossing was started, it is preset as the reference time from the start of the alarm output to the arrival of the train at the railroad crossing. Remaining time calculation unit that calculates the remaining time indicating the remaining time required to secure the design alarm time,
A train running control unit that controls the running of the train so that the train does not reach the railroad crossing in a time shorter than the remaining time.
A train control system characterized by being equipped with.
As a railroad crossing speed limit, which is the speed limit until the train reaches the railroad crossing, the first railroad crossing speed limit is calculated based on the position information of the train, the position information of the railroad crossing, and the remaining time. Equipped with a railroad crossing speed limit calculation unit
The train control system according to claim 1, wherein the train travel control unit controls the travel of the train based on the first railroad crossing speed limit.
When the first speed limit that temporarily limits the speed of the train to the first speed limit or less is set, the train running control unit travels the remaining time at the first speed limit. At that time, it is determined whether or not the railroad crossing is reached, and
When it is determined that the train does not reach the railroad crossing, the running of the train is controlled based on the first speed limit.
The train control according to claim 1, wherein when it is determined that the train reaches the railroad crossing, the running of the train is controlled so that the train does not reach the railroad crossing in a time shorter than the remaining time. system.
The railroad crossing when the train travels in the remaining time at the first speed limit when the first speed limit is set to temporarily limit the speed of the train to the first speed limit or less. Equipped with a railroad crossing arrival determination unit that determines whether or not to reach
When the railroad crossing arrival determination unit determines that the train does not reach the railroad crossing, the railroad crossing speed limit calculation unit does not calculate the first railroad crossing speed limit as the railroad crossing speed limit. The speed limit of 1 is calculated as the second railroad crossing speed limit, and the train running control unit controls the running of the train based on the second railroad crossing speed limit.
When it is determined that the train reaches the railroad crossing, the railroad crossing speed limit calculation unit calculates the first railroad crossing speed limit as the railroad crossing speed limit, and the train running control unit calculates the first railroad crossing speed limit. The train control system according to claim 2, wherein the running of the train is controlled based on the railroad crossing speed limit.
When the first speed limit that temporarily limits the speed of the train to the first speed limit or less is set, the train running control unit performs the crossing limit calculated by the crossing limit speed calculation unit. Compare the speed with the first speed limit,
When the railroad crossing speed limit is equal to or higher than the first speed limit, the running of the train is controlled based on the first speed limit.
The train control system according to claim 2, wherein when the railroad crossing speed limit is less than the first speed limit, the running of the train is controlled based on the railroad crossing speed limit.
When the first speed limit is released after the start of the output of the alarm, the train travel control unit controls the travel of the train so that the train does not reach the railroad crossing in a time shorter than the remaining time. The train control system according to claim 1 or 3, wherein the train control system.
When the first speed limit is released after the start of the output of the alarm, the train travel control unit runs the train based on the railroad crossing speed limit calculated by the railroad crossing speed limit calculation unit. The train control system according to claim 4 or 5, wherein the train is controlled.
If a second speed limit is set to temporarily limit the speed of the train below the second speed limit after the start of the output of the alarm, the train travel control unit uses the second speed limit. It is determined whether or not the railroad crossing is reached when the train travels in the remaining time.
When it is determined that the train does not reach the railroad crossing, the running of the train is controlled based on the second speed limit.
The first or third aspect of the present invention, wherein when it is determined that the train reaches the railroad crossing, the running of the train is controlled so that the train does not reach the railroad crossing in a time shorter than the remaining time. The train control system described.
When a second speed limit is set that temporarily limits the speed of the train to a speed below the second speed limit after the start of the output of the alarm, the train travel control unit is operated by the crossing speed limit calculation unit. Comparing the calculated speed limit with the second speed limit,
When the railroad crossing speed limit is equal to or higher than the second speed limit, the running of the train is controlled based on the second speed limit.
If the railroad crossing speed limit is less than the second railroad crossing speed limit, any one of claims 2, 4, and 5, characterized in that the running of the train is controlled based on the railroad crossing speed limit. The train control system according to item 1.
The remaining time calculation unit controls the on-board control device mounted on the train, the ground control device that communicates with the on-board control device via a wireless device, and the output of the alarm at the railroad crossing. It is installed in one of the railroad crossing control devices
The method according to any one of claims 1 to 9, wherein the train travel control unit is provided in any one of the on-board control device, the ground control device, and the railroad crossing control device. Train control system.
The railroad crossing speed limit calculation unit outputs the on-board control device mounted on the train, the ground control device that communicates with the on-board control device via a wireless device, and the alarm of the railroad crossing. The train control system according to any one of claims 2, 4, 4, 5, 7, 7, and 9, characterized in that it is provided in any one of the railroad crossing control devices to be controlled.
The railroad crossing arrival determination unit controls the on-board control device mounted on the train, the ground control device that communicates with the on-board control device via a wireless device, and the output of the alarm of the railroad crossing. The train control system according to claim 4, wherein the train control device is provided in any of the railroad crossing control devices.