JP7285811B2 - Wireless train control system, track management device, railroad crossing control device, and railroad crossing control method - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a wireless train control system, a track management device, a railroad crossing control device, and a railroad crossing control method for controlling railroad crossing ringing.

A radio train control system is composed of many devices such as on-board devices mounted on trains, on-board radio devices, ground hub devices installed on the ground, and ground radio devices. Therefore, in the radio train control system, when a failure occurs in a certain device, or when a communication error occurs between certain devices, train operation cannot be continued. To address such a problem, Patent Literature 1 discloses a technique for allowing a train to travel to a position where it can stop when an abnormality occurs in wireless communication between the ground base device and the train.

JP 2013-10477 A

A ground base device of the radio train control system transmits and receives control information to and from a railroad crossing control device. If the railroad crossing control device cannot acquire train location information, which is one of the control information, from the ground base device, it cannot grasp the position of the train, and therefore cannot control the ringing of the railroad crossing. Therefore, if the ground base unit fails in the radio train control system, even if the train can be run in emergency operation, the ringing of the railroad crossing cannot be controlled. In this case, there is a problem that a maintenance worker or a train driver has to manually close the railroad crossing so that the train does not pass through the railroad crossing that is not closed.

The present disclosure has been made in view of the above, and an object of the present disclosure is to obtain a wireless train control system capable of continuing railroad crossing control of a railroad crossing control device when a ground base device fails.

In order to solve the above-described problems and achieve the object, the wireless train control system of the present disclosure includes a railroad crossing control device that controls the ringing of a railroad crossing, and a ground base device that transmits and receives control information between the railroad crossing control device. and a train presence management device for transferring, to the level crossing control device, train presence information received from a train via a ground radio device, which is one piece of control information, in the event of a failure. When the ground base device fails, the railroad crossing control device, based on the track location information received from the track location management device and the critical speed information that is one of the control information and indicates the temporary speed limit during emergency operation of the train, It is characterized by controlling the ringing of the railroad crossing.

Advantageous Effects of Invention According to the present disclosure, the wireless train control system has the effect of being able to continue railroad crossing control of the railroad crossing control device when the ground base device fails.

1 is a diagram showing a configuration example of a radio train control system according to Embodiment 1. FIG. Flowchart showing operation of the radio train control system according to Embodiment 1 Flowchart showing a method for determining whether or not there is a failure in a ground hub device by the track management device according to the first embodiment 4 is a flow chart showing a method for the railroad crossing control device according to Embodiment 1 to determine whether or not there is a failure in the ground base device; FIG. 4 is a diagram showing an example of a case where a processing circuit included in the traffic management apparatus according to Embodiment 1 is configured by a processor and a memory; FIG. 4 is a diagram showing an example of a case where a processing circuit included in the traffic management apparatus according to Embodiment 1 is configured with dedicated hardware; The figure which shows the structural example of the radio|wireless train control system which concerns on Embodiment 2 Flowchart showing the operation of the radio train control system according to Embodiment 2 A diagram showing an example of a route to be controlled by the radio train control system according to Embodiment 3 Flowchart showing the operation of the radio train control system according to Embodiment 3 A first diagram showing an example of a route to be controlled by the radio train control system according to the fourth embodiment. A second diagram showing an example of a route to be controlled by the radio train control system according to Embodiment 4 Flowchart showing the operation of the radio train control system according to the fourth embodiment

A wireless train control system, a track management device, a railroad crossing control device, and a railroad crossing control method according to embodiments of the present disclosure will be described below in detail with reference to the drawings.

Embodiment 1.
FIG. 1 is a diagram showing a configuration example of a radio train control system 1 according to Embodiment 1. As shown in FIG. The radio train control system 1 is a system that controls running of a train 2 and also controls ringing of a railroad crossing 3 . FIG. 1 shows a train 2 approaching a railroad crossing 3 as it travels from left to right as indicated by an arrow. Although there is one train 2 and one railroad crossing 3 in the example of FIG. is possible. Note that the ringing of the railroad crossing 3 includes an alarm by sound, an alarm by light, a blockage by a blocking bar, and the like. The timing of starting and ending the warning by sound and light and the blocking by the blocking bar may be different. The same shall apply to the following. As shown in FIG. 1, the radio train control system 1 includes ground radio devices 11a and 11b, a ground base device 12, a critical speed setting terminal 13, a track management device 14, a railroad crossing control device 15, and an on-site device 16a. , 16b.

The ground radio devices 11a and 11b communicate with the train 2 by radio. The ground radio devices 11a and 11b receive from the train 2 on-track information including information on the position and speed of the train 2 . The ground wireless devices 11a and 11b transmit the received railroad information to the ground base device 12 and the railroad management device 14 by broadcasting. Also, the ground radio devices 11 a and 11 b transmit various control information to the train 2 . In the following description, the terrestrial radio equipment 11a and 11b may be referred to as the terrestrial radio equipment 11 when not distinguished.

The ground base device 12 transmits and receives control information to and from the railroad crossing control device 15 . Specifically, the ground base device 12 transmits the control information, which is the track location information received from the ground radio device 11 , to the speed setting terminal 13 and the railroad crossing control device 15 . The ground base unit 12 transmits to the ground wireless device 11 and the railroad crossing control device 15 the control information, which is the critical speed information received from the critical speed setting terminal 13 and indicating the temporary speed limit for the emergency operation of the train 2 . The ground base device 12 also transmits to the ground radio device 11 , railroad crossing information, which is control information and indicates the timing of the ringing of the railroad crossing 3 received from the railroad crossing control device 15 .

The speed setting terminal 13 outputs the train location information of the train 2 received from the ground base device 12 by means of display or the like, and receives setting of the speed information from a dispatcher or the like who checks the location information and performs operation management. The arrival speed setting terminal 13 transmits the received arrival speed information to the ground base device 12 .

The on-track management device 14 manages the on-track information of the train 2 in the radio train control system 1 . The on-track management device 14 includes a communication unit 141 and a control unit 142 . The communication unit 141 communicates with the railroad crossing control device 15 , the ground base device 12 and the ground radio device 11 . The control unit 142 manages the train location information received from the train 2 by the communication unit 141 via the ground radio device 11 . In addition, when the ground base unit 12 fails, the control unit 142 receives train 2 location information, which is one piece of control information and is received from the train 2 by the communication unit 141 via the ground radio unit 11, to the railroad crossing control device. 15 is controlled.

The railroad crossing control device 15 controls the ringing of the railroad crossing 3 . The railroad crossing control device 15 includes a communication section 151 , a control section 152 and a storage section 153 . The communication unit 151 communicates with the ground base device 12 , the track management device 14 , and the field devices 16 a and 16 b that ring the railroad crossing 3 . The control unit 152 controls the ringing of the railroad crossing 3 . In addition, when the ground base device 12 fails, the control unit 152 receives the train 2 information, which is one of the control information and which is received by the communication unit 151 from the track management device 14, and the control information, which is one of the control information. The ringing of the railroad crossing 3 is controlled based on the critical speed information of the train 2. - 特許庁The storage unit 153 holds the critical speed information. In Embodiment 1, the railroad crossing control device 15 holds the critical speed information in advance together with the train 2 .

The site device 16b makes the railroad crossing 3 sound. The on-site device 16a sounds the railroad crossing 3 (not shown). Field devices 16a and 16b may each ring one or more railroad crossings 3 . In the following description, the on-site devices 16a and 16b may be referred to as the on-site device 16 when not distinguished.

When each device in the radio train control system 1 is operating normally, the ground base device 12 receives the on-track information of the train 2 received from the ground radio device 11 and the emergency received from the speed setting terminal 13 as control information. The speed information is transmitted to the railroad crossing control device 15 . Further, the ground base device 12 receives railroad crossing information transmitted from the railroad crossing control device 15 as control information, and transmits the railroad crossing information to the ground wireless device 11 . Here, in the radio train control system 1, it is assumed that the ground base device 12 fails. In this case, the railroad crossing control device 15 cannot receive the train location information and the speed information from the ground base device 12 . When the railroad crossing information and the critical speed information cannot be received, the railroad crossing control device 15 cannot specify the position and speed of the train 2, so that the railroad crossing 3 cannot be sounded at the timing when the train 2 passes the railroad crossing 3.例文帳に追加

Therefore, in the first embodiment, when the ground base device 12 fails, the track location management device 14 performs control to transfer the track location information of the train 2 received from the ground wireless device 11 to the railroad crossing control device 15 . As for the critical speed information, the railroad crossing control device 15 and the train 2 hold critical speed information indicating a preset fixed speed. Since the on-track management device 14 periodically transmits and receives signals such as control information to and from the ground base device 12, when it becomes impossible to receive signals such as control information from the ground base device 12, the ground base device 12 can be determined to be faulty. The railroad crossing control device 15 can determine that the ground base device 12 has failed when it becomes impossible to receive the train location information and the speed information from the ground base device 12 .

Since the train 2 cannot receive control information such as railroad crossing information from the ground base device 12 via the ground wireless device 11, it can be determined that the ground base device 12 has failed. However, it is also assumed that the train 2 is temporarily unable to receive the control information from the ground base device 12 due to deterioration of the radio environment between the train 2 and the ground radio device 11 . Therefore, when the track management device 14 determines that the ground base device 12 has failed, it may transmit control information indicating that the ground base device 12 has failed to the train 2 via the ground wireless device 11. . The train 2 receives control information indicating that the ground base unit 12 is out of order from the on-track management device 14 via the ground radio equipment 11, so that the train 2 can reliably grasp that the ground base unit 12 is out of order. .

The operation of the radio train control system 1 will be explained using a flowchart. FIG. 2 is a flow chart showing the operation of the radio train control system 1 according to the first embodiment. In the radio train control system 1, when the ground base device 12 is out of order (step S11: Yes), the track status management device 14 transfers the track status information of the train 2 received from the ground radio device 11 to the railroad crossing control device 15 ( step S12). The railroad crossing control device 15 determines the ringing timing of the railroad crossing 3 based on the track location information of the train 2 received from the railroad location management device 14 and the previously stored critical speed information (step S13). The railroad crossing control device 15 transmits railroad crossing information indicating the timing of the ringing of the railroad crossing 3 to the on-site device 16 . If the ground base unit 12 does not fail in the radio train control system 1 (step S11: No), the radio train control system 1 may operate normally, so the operations of steps S12 and S13 are performed. Not performed.

FIG. 3 is a flow chart showing a method of determining whether or not the ground base station device 12 has a failure by the track management device 14 according to the first embodiment. In the railway management device 14, when the communication unit 141 receives the control information from the ground base device 12 (step S21: Yes), the control unit 142 determines that the ground base device 12 is not out of order, that is, is operating normally. (step S22). When the communication unit 141 no longer receives control information from the ground base device 12 (step S21: No), the control unit 142 determines that the ground base device 12 is out of order (step S23).

FIG. 4 is a flow chart showing a method of determining whether or not the ground base device 12 is faulty by the railroad crossing control device 15 according to the first embodiment. In the railroad crossing control device 15, when the communication unit 151 has received the train location information from the ground base device 12 (step S31: Yes), the control unit 152 determines that the ground base device 12 is not out of order, that is, is operating normally. It is determined that there is (step S32). When the communication unit 151 no longer receives the train location information from the ground base device 12 (step S31: No), the control unit 152 determines that the ground base device 12 is out of order (step S33).

Next, the hardware configuration of the on-track management device 14 will be described. In the presence management device 14, the communication unit 141 is an interface such as a communication device. The control unit 142 is implemented by a processing circuit. The processing circuitry may be a processor and memory executing programs stored in the memory, or may be dedicated hardware.

FIG. 5 is a diagram showing an example of a case in which the processing circuit 90 included in the presence management device 14 according to the first embodiment is configured by a processor 91 and a memory 92. As shown in FIG. When the processing circuit 90 is composed of the processor 91 and the memory 92, each function of the processing circuit of the traffic management device 14 is implemented by software, firmware, or a combination of software and firmware. Software or firmware is written as a program and stored in memory 92 . In the processing circuit, each function is realized by the processor 91 reading and executing the program stored in the memory 92 . That is, the processing circuitry includes a memory 92 for storing programs that result in the processing of the presence management device 14 being executed. It can also be said that these programs cause a computer to execute the procedures and methods of the traffic management device 14 .

Here, the processor 91 may be a CPU (Central Processing Unit), a processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP (Digital Signal Processor). The memory 92 includes non-volatile or volatile memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (registered trademark) (Electrically EPROM). semiconductor memories, magnetic discs, flexible discs, optical discs, compact discs, mini discs, or DVDs (Digital Versatile Discs).

FIG. 6 is a diagram showing an example in which the processing circuit 93 included in the traffic management device 14 according to the first embodiment is configured by dedicated hardware. When the processing circuit 93 is composed of dedicated hardware, the processing circuit 93 shown in FIG. 6 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, or an ASIC (Application Specific Integrated Circuit). , FPGA (Field Programmable Gate Array), or a combination thereof. Each function of the on-track management device 14 may be realized by the processing circuit 93 for each function, or each function may be collectively realized by the processing circuit 93 .

It should be noted that each function of the presence management device 14 may be partly realized by dedicated hardware and partly realized by software or firmware. Thus, the processing circuitry may implement each of the functions described above through dedicated hardware, software, firmware, or a combination thereof.

Although the hardware configuration of the train presence management device 14 has been described, the hardware configuration of the railroad crossing control device 15 is the same. In the railroad crossing control device 15, the communication unit 151 is an interface such as a communication device. Storage unit 153 is a memory. The control unit 152 is implemented by a processing circuit. The processing circuitry may be a processor and memory executing programs stored in the memory, or may be dedicated hardware.

As described above, according to the present embodiment, in the radio train control system 1, when the ground base device 12 fails, the track management device 14 receives train 2 information from the train 2 via the ground radio device 11. is transferred to the railroad crossing control device 15. When the ground base device 12 fails, the railroad crossing control device 15 rings the railroad crossing 3 based on the train 2 location information transferred from the railroad location management device 14 and the speed information held in advance together with the train 2. was to be controlled. Thereby, the radio train control system 1 can continue the control of the railroad crossing 3 by the railroad crossing control device 15 even when the ground base device 12 fails.

Embodiment 2.
In the first embodiment, the railroad crossing control device 15 and the train 2 hold in advance the critical speed information to be used when the ground base device 12 fails. In the second embodiment, a case will be described in which critical speed information to be used when the ground base device 12 fails is set after the ground base device 12 fails, and is transmitted to the train 2 from a railroad crossing control device 15a, which will be described later.

FIG. 7 is a diagram showing a configuration example of a radio train control system 1a according to Embodiment 2. As shown in FIG. The radio train control system 1a is a system that controls the running of the train 2 and also controls the ringing of the railroad crossing 3 . FIG. 7 shows the train 2 running from left to right as indicated by the arrow and approaching the railroad crossing 3 . Although there is one train 2 and one railroad crossing 3 in the example of FIG. is possible. As shown in FIG. 7, the radio train control system 1a includes ground radio devices 11a and 11b, a ground base device 12, a critical speed setting terminal 13, a track management device 14a, a railroad crossing control device 15a, and an on-site device 16a. , 16b and a terminal device 17 .

The railroad crossing control device 15 a controls the ringing of the railroad crossing 3 . The railroad crossing control device 15a includes a communication unit 151 and a control unit 152a. The communication unit 151 communicates with the ground base device 12 , the track management device 14 a , the field device 16 and the terminal device 17 . The control unit 152a controls the ringing of the railroad crossing 3 . Further, when the ground base device 12 fails, the control unit 152a rings the railroad crossing 3 based on the train 2 location information and the train 2 speed information received by the communication unit 151 from the track location management device 14a. Control. Further, the control unit 152a controls transmission of the speed information from the communication unit 151 to the on-track management device 14a. In the second embodiment, it is assumed that the critical speed information used by the controller 152a of the railroad crossing controller 15a when the ground base device 12 fails is determined by the controller 152a or set by the terminal device 17. do. The control unit 152a may calculate the running speed information based on the train running information of the train 2 received from the train running management device 14a. You may choose from speed information. Alternatively, a dispatcher who manages operations may set the critical speed information of the train 2 using the terminal device 17, and the terminal device 17 may transmit the set critical speed information to the railroad crossing control device 15a. The railroad crossing control device 15 a may include a storage unit 153 for holding the critical speed information obtained by the control unit 152 a or the critical speed information set by the terminal device 17 .

The on-track management device 14a manages the on-track information of the train 2 in the radio train control system 1a. The on-track management device 14a includes a communication unit 141 and a control unit 142a. The communication unit 141 communicates with the railroad crossing control device 15 a , the ground base device 12 and the ground wireless device 11 . The control unit 142 a manages the train location information received from the train 2 by the communication unit 141 via the ground radio device 11 . In addition, when the ground base unit 12 fails, the control unit 142a receives train 2 location information, which is one piece of control information and is received from the train 2 via the ground radio unit 11 by the communication unit 141, to the level crossing control unit 15a. control to transfer to Further, the control unit 142a performs control to transfer the critical speed information received by the communication unit 141 from the railroad crossing control device 15a to the train 2 via the ground radio device 11. FIG.

The terminal device 17 is a device capable of receiving setting of the arrival speed information from the dispatcher who manages the operation. The terminal device 17 transmits the received speed information to the railroad crossing control device 15a when the setting of the speed information is received from the dispatcher who manages operation.

In the radio train control system 1a, the method by which the control unit 142a of the track management device 14a determines whether or not the ground base device 12 has failed It is the same as the method of determining the presence or absence of Further, the control unit 152a of the railroad crossing control device 15a determines whether or not the ground base device 12 is faulty. Similar to the method.

In Embodiment 2, the railroad crossing control device 15a and the train 2 use not the preset critical speed information but the critical speed information set each time the ground base device 12 fails. Thereby, the radio train control system 1a can control the operation of the train 2 in line with the actual running of the train 2, and can control the ringing of the railroad crossing 3 in line with the actual running of the train 2. - 特許庁

The operation of the radio train control system 1a will be explained using a flow chart. FIG. 8 is a flow chart showing the operation of the radio train control system 1a according to the second embodiment. In the flowchart of FIG. 8, the operations from step S41 to step S43 are the same as the operations from step S11 to step S13 of the flowchart of the first embodiment shown in FIG. In the second embodiment, the railroad crossing control device 15a transmits the critical speed information used when determining the ringing timing of the railroad crossing 3 to the track management device 14a (step S44). The track management device 14a transfers the critical speed information received from the railroad crossing control device 15a to the train 2 via the ground radio device 11 (step S45). If the ground base unit 12 does not fail in the radio train control system 1a (step S41: No), the radio train control system 1a may operate normally, so the operations from step S42 to step S45 are performed. do not

As described above, according to the present embodiment, in the radio train control system 1a, when the ground base device 12 fails, the track management device 14a receives train 2 information from the train 2 via the ground radio device 11. is transferred to the railroad crossing control device 15a. When the ground base device 12 fails, the railroad crossing control device 15a receives the train 2 location information transferred from the railroad location management device 14a and the critical speed information obtained by the railroad crossing control device 15a or set by the terminal device 17. Based on, it was decided to control the ringing of the railroad crossing 3. Thereby, the radio train control system 1a can continue the control of the railroad crossing 3 by the railroad crossing control device 15a even when the ground base device 12 fails. Further, the radio train control system 1a can perform operation control of the train 2 and ringing control of the railroad crossing 3 in line with the actual running of the train 2, as compared with the radio train control system 1 of the first embodiment.

Embodiment 3.
In Embodiments 1 and 2, it was assumed that one train 2 was approaching the railroad crossing 3 . However, if the route on which the train 2 runs is a double track, there is a possibility that the train 2 will approach the railroad crossing 3 from the opposite direction of the train 2 . Further, when the route on which the train 2 runs is a double track, there is a possibility that the train 2 approaches the railroad crossing 3 from the same direction as the train 2 on the track adjacent to the track on which the train 2 runs. When a plurality of trains 2 approach a railroad crossing 3 and the timings at which the plurality of trains 2 pass through the railroad crossing 3 are slightly different, the railroad crossing 3 frequently repeats ringing or the railroad crossing 3 rings for a long time. In such a state, convenience for pedestrians and automobiles trying to cross the railroad crossing 3 is deteriorated. Therefore, in Embodiment 3, the timing at which the train 2 passes through the railroad crossing 3 is controlled to prevent the railroad crossing 3 from ringing for a long period of time. Although it can be applied to both Embodiment 1 and Embodiment 2, Embodiment 2 will be described as an example.

In Embodiment 3, the configuration of the radio train control system 1a is the same as the configuration of the radio train control system 1a of Embodiment 2 shown in FIG. FIG. 9 is a diagram showing an example of a route to be controlled by the radio train control system 1a according to the third embodiment. In FIG. 9, the train 2a runs from left to right as indicated by the arrow and approaches the railroad crossing 3, and the train 2b runs from right to left as indicated by the arrow and approaches the railroad crossing 3. It shows how it is. In the example of FIG. 9, the train 2b is closer to the railroad crossing 3 than the train 2a, so if the trains 2a and 2b run at the same speed, the train 2b will pass the railroad crossing 3 first. In this case, the railroad crossing 3 rings for the train 2a immediately after finishing the ringing after the train 2b has passed, or continues to ring for the train 2a even after the train 2b has passed.

Therefore, in the radio train control system 1a, when the railroad crossing control device 15a receives the on-track information of a plurality of trains 2, the railroad crossing control device 15a suppresses the number of sounds of the railroad crossing 3 when the plurality of trains 2 pass through the railroad crossing 3, Set the target speed of one or more trains 2 so as to suppress the extension of the ringing time of 3. The railroad crossing control device 15a transmits the set target speeds of one or more trains 2 to the track management device 14a. Specifically, when the communication unit 151 receives the on-track information of a plurality of trains 2, the control unit 152a of the railroad crossing control device 15a suppresses the number of sounds of the railroad crossing 3 when the plurality of trains 2 pass through the railroad crossing 3. In addition, the target speed of one or more trains 2 set to suppress the extension of the ringing time of the railroad crossing 3 is controlled to be transmitted from the communication unit 141 to the track management device 14a.

When receiving target speeds of one or more trains 2 from the railroad crossing control device 15a, the track management device 14a transfers the received target speeds of the one or more trains 2 to the target trains 2 via the ground radio device 11. . Specifically, the control unit 142a of the track management device 14a transfers the target speeds of one or more trains 2 received by the communication unit 141 from the railroad crossing control device 15a to the target trains 2 via the ground radio device 11. control.

The operation of the radio train control system 1a will be explained using a flow chart. FIG. 10 is a flow chart showing the operation of the radio train control system 1a according to the third embodiment. In the flowchart of FIG. 10, the operations from step S51 to step S53 are the same as the operations from step S11 to step S13 in the flowchart of the first embodiment shown in FIG. However, in Embodiment 3, the radio train control system 1a targets a plurality of trains 2. FIG. In other words, the track position management device 14a transfers the track position information of the plurality of trains 2 received from the ground radio device 11 to the railroad crossing control device 15a (step S52). The railroad crossing control device 15a determines the ringing timings of the railroad crossings 3 for the plurality of trains 2 based on the track location information and the critical speed information of the plurality of trains 2 received from the railroad location management device 14a (step S53).

The railroad crossing control device 15a determines whether or not to adjust the traveling speed of each train 2, that is, to set a target speed, based on the determined ringing timings of the railroad crossings 3 of the plurality of trains 2 (step S54). For example, when the ringing period of the railroad crossing 3 determined for a certain train 2 and the ringing period of the railroad crossing 3 determined for another train 2 partially overlap, the railroad crossing control device 15a determines to set the target speed (step S54: Yes). For example, the railroad crossing control device 15a determines that the ringing period of the railroad crossing 3 determined for a certain train 2 does not overlap with the ringing period of the railroad crossing 3 determined for another train 2, but the interval between the ringing times is within a specified time. In the case of , it may be determined to set the target speed. When determining to set the target speed, the railroad crossing control device 15a sets the target speed of the train 2 arriving at the railroad crossing 3 first among the plurality of trains 2 (step S55). Since it is assumed that the ground base unit 12 is out of order, the railroad crossing control device 15a does not increase the traveling speed of the train 2 arriving at the railroad crossing 3 later, and controls the train arriving first at the railroad crossing 3. Set the target speed so as to lower the running speed of 2. The railroad crossing control device 15a sets the target speed so as to lower the running speed of the train 2 arriving at the railroad crossing 3 first, and also sets the target speed so as to lower the running speed of the train 2 arriving at the railroad crossing 3 later. good.

With respect to the target speed, the commander who performs operation management who confirmed the ringing timing of the plurality of trains 2 determined in step S53 determines whether or not to set the target speed via the terminal device 17 (step S54 ), and setting of the target speed (step S55).

The railroad crossing control device 15a transmits the set target speed to the track management device 14a (step S56). The track management device 14a transfers the target speed received from the railroad crossing control device 15a to the train 2 via the ground radio device 11 (step S57). If the ground base unit 12 does not fail in the radio train control system 1a (step S51: No), the radio train control system 1a may operate normally, so the operations from step S52 to step S57 are performed. do not If the railroad crossing control device 15a determines not to set the target speed (step S54: No), the radio train control system 1a does not perform steps S55 to S57.

When the radio train control system 1a determines that the railroad crossing control device 15a does not set the target speed (step S54: No), in the case of applying to the second embodiment, steps S44 and S45 of the flowchart shown in FIG. Action should be taken. Further, when the radio train control system 1a determines that the railroad crossing control device 15a sets the target speed (step S54: Yes), the radio train control system 1a does not set the target speed for the train 2 arriving at the railroad crossing 3 later. In the case of application, the operation of steps S44 and S45 of the flow chart shown in FIG. When the target speed is set, the radio train control system 1a may transmit only the target speed to the train 2 from the railroad crossing control device 15a via the track management device 14a and the ground radio device 11, or transmit the target speed and The speed information may be transmitted to the train 2.

As described above, according to the present embodiment, in the radio train control system 1a, when the railroad crossing control device 15a receives the on-track information of a plurality of trains 2, when the plurality of trains 2 pass through the railroad crossing 3, First, the target speed of one or more trains 2 is set so as to suppress the number of ringing times of the railroad crossing 3 and to suppress the extension of the ringing time of the railroad crossing 3. The railroad crossing control device 15a transmits the target speed to the train 2 via the track management device 14a and the ground radio device 11 . Train 2 runs according to the target speed. As a result, the radio train control system 1a can suppress the number of times the railroad crossing 3 rings and suppress the extension of the ringing time of the railroad crossing 3 . As a result, it is possible to improve the convenience for pedestrians, automobiles, etc. who are about to cross the railroad crossing 3 .

Embodiment 4.
In Embodiments 1 to 3, since it is assumed that the ground base device 12 fails, even when the train 2 is to run, the train 2 can be operated by running to the next station and getting off the passengers at the station. The running section was limited. However, when a plurality of trains 2 exist between stations, the next train 2 cannot be made to arrive at the station unless the train 2 that arrives at the station first is started. It is necessary to start, that is, to run. In such a case, whether or not the railroad crossing 3 near the station, through which the train 2 passes immediately after departing from the station, should be sounded depends on the operation status of the train 2 . In the fourth embodiment, a case will be described in which the railroad crossing control device 15a can select whether to continue or suppress the ringing of the railroad crossing 3. FIG. Although it can be applied to any of the first to third embodiments, the second embodiment will be described as an example.

FIG. 11 is a first diagram showing an example of a route to be controlled by the radio train control system 1a according to the fourth embodiment. FIG. 12 is a second diagram showing an example of a route controlled by the radio train control system 1a according to the fourth embodiment. As shown in FIG. 11, the train 2 runs according to any one of the methods of Embodiments 1 to 3 and arrives at the station 4, and there is no following train 2 or the following train 2 is not shown. When the train 2 arrives at the nearest station and stops, the train 2 can continue to stop at the station 4 because no operation command is received from the operation control system (not shown). In this case, since the train 2 does not depart from the station 4, the railroad crossing 3 through which the train 2 will pass immediately after departing from the station 4 does not need to be sounded. On the other hand, as shown in FIG. 12, when the train 2a runs according to any one of the methods of Embodiments 1 to 3 and arrives at the station 4, and there is a following train 2b, the train 2a is operated. It has to leave the station 4 according to the operation command from the management system. In this case, since the train 2a departs from the station 4, the railroad crossing 3 through which the train 2a will pass immediately after departing from the station 4 must continue to ring so that the train 2a can depart at any time. In this way, there are cases where the train 2 stops at station 4 and does not receive an operation command as shown in FIG. There is also

Therefore, in the fourth embodiment, the railroad crossing control device 15a continues or suppresses the ringing of the railroad crossing 3 based on the command from the operation management system that manages the operation of the trains 2, 2a, and 2b. That is, the railroad crossing control device 15a selects whether to suppress or continue the ringing of the railroad crossing 3 according to the contents of the command. Specifically, the control unit 152a of the railroad crossing control device 15a performs control to continue or suppress the ringing of the railroad crossing 3 based on a command from the operation management system that manages the operation of the train 2 . As a result, the railroad crossing control device 15a can continue ringing the railroad crossing 3 when it is necessary to ring the railroad crossing 3 because there is a possibility that the train 2a will depart. When the ringing of the railroad crossing 3 is unnecessary, the ringing of the railroad crossing 3 can be suppressed.

The operation of the radio train control system 1a will be explained using a flow chart. FIG. 13 is a flow chart showing the operation of the radio train control system 1a according to the fourth embodiment. The railroad crossing control device 15a determines whether or not the train 2 has arrived at the station 4 by any of the methods of the first to third embodiments (step S61). When the train 2 has arrived at the station 4 (step S61: Yes), the railroad crossing control device 15a determines whether or not there is a railroad crossing 3 within a defined range in the traveling direction of the train 2 from the station 4 (step S62). ). If the railroad crossing 3 is within the prescribed range of the traveling direction of the train 2 from the station 4 (step S62: Yes), the railroad crossing control device 15a determines whether or not an operation command for the train 2 has been received from the operation management system. (step S63). If the operation command has been received (step S63: Yes), the railroad crossing control device 15a continues ringing the railroad crossing 3 because the train 2 is departing (step S64). If the operation command has not been received (step S63: No), the railroad crossing control device 15a suppresses the ringing of the railroad crossing 3 because the train 2 will not depart soon (step S65). If the train 2 has not arrived at the station 4 (step S61: No), or if there is no railroad crossing 3 within a specified range from the station 4 in the traveling direction of the train 2 (step S62: No), the railroad crossing The control device 15a ends the operation shown in FIG.

As described above, according to the present embodiment, in the wireless train control system 1a, when the train 2 is stopped at the station 4, the railroad crossing control device 15a determines whether or not there is an operation command from the operation management system. It was decided to continue or suppress the sound of level crossing 3. As a result, the radio train control system 1a continues to ring the railroad crossing 3 when there is a possibility that the train 2 will pass through the railroad crossing 3, and sounds the railroad crossing 3 when there is no possibility that the train 2 will pass through the railroad crossing 3. can be deterred.

The configurations shown in the above embodiments are only examples, and can be combined with other known techniques, or can be combined with other embodiments, without departing from the scope of the invention. It is also possible to omit or change part of the configuration.

1, 1a radio train control system, 2, 2a, 2b train, 3 railroad crossing, 4 station, 11a, 11b ground wireless device, 12 ground hub device, 13 critical speed setting terminal, 14, 14a track management device, 15, 15a railroad crossing Control device, 16a, 16b On-site device, 17 Terminal device, 141, 151 Communication unit, 142, 142a, 152, 152a Control unit, 153 Storage unit.

Claims (18)

a railroad crossing control device for controlling the ringing of the railroad crossing;
When a ground base unit that transmits and receives control information to and from the railroad crossing control device fails, the train location information received from the train via the ground radio device, which is one of the control information, is transmitted to the railroad crossing control device. a track management device that transfers to
with
When the ground base unit fails, the railroad crossing control device receives the railroad location information received from the railroad location management device and a critical speed limit which is one of the control information and indicates a temporary speed limit during emergency operation of the train. controlling the ringing of the railroad crossing based on the information;
A radio train control system characterized by: The railroad crossing control device holds the critical speed information,
The radio train control system according to claim 1, characterized in that: The railroad crossing control device transmits the critical speed information to the railway traffic control device,
The on-track management device transfers the speed information to the train via the ground radio device.
The radio train control system according to claim 1, characterized in that: When the railroad crossing control device receives the railroad information of the plurality of trains, the railroad crossing control device suppresses the number of times the railroad crossing rings when the plurality of trains pass through the railroad crossing, and suppresses the extension of the ringing time of the railroad crossing. transmitting the target speed of one or more of the trains set to be set to the track management device;
The on-track management device transfers the target speed of one or more of the trains to the target train via the ground radio device.
4. The radio train control system according to claim 1 or 3, characterized in that: The railroad crossing control device continues or suppresses the ringing of the railroad crossing based on a command from an operation management system that manages operation of the train.
5. The radio train control system according to any one of claims 1 to 4, characterized in that: A railroad crossing control device that configures a wireless train control system together with a railroad crossing control device that controls the ringing of a railroad crossing,
a communication unit that communicates with the railroad crossing control device, a ground base device that transmits and receives control information to and from the railroad crossing control device, and a ground wireless device;
When the ground base unit fails, control is performed to transfer to the level crossing control device one of the control information, namely information on the location of the train received from the train by the communication unit via the ground wireless device. Department and
A railway management device comprising: The control unit transmits critical speed information, which is one of the control information received by the communication unit from the railroad crossing control device and indicates a temporary speed limit during emergency operation of the train, via the ground radio device. to control the transfer to the train,
7. The presence management device according to claim 6, characterized in that: When the plurality of trains received by the communication unit from the railroad crossing control device pass through the railroad crossing, the control unit suppresses the number of times the railroad crossing rings and suppresses extension of the ringing time of the railroad crossing. Control to transfer the set target speed of one or more of the trains to the target train via the ground radio device;
8. The presence management device according to claim 6 or 7, characterized in that: A railroad crossing control device that constitutes a wireless train control system together with a track management device,
a communication unit that communicates with a ground base device that transmits and receives control information to and from the railroad crossing control device, the track presence management device, and an on-site device that sounds the railroad crossing;
a control unit that controls the ringing of the railroad crossing;
with
When the ground base unit fails, the control unit controls the train location information, which is one of the control information and which is received by the communication unit from the train location management device, and the control information, which is one of the control information and Controlling the ringing of the railroad crossing based on the critical speed information indicating the temporary speed limit during emergency operation of the train,
A railroad crossing control device characterized by: a storage unit that holds the critical velocity information;
The railroad crossing control device according to claim 9, characterized by comprising: The control unit controls transmission of the speed information from the communication unit to the railway traffic management device.
The railroad crossing control device according to claim 9, characterized in that: When the communication unit receives the on-track information of a plurality of trains, the control unit suppresses the number of times the railroad crossing rings when the plurality of trains pass through the railroad crossing, and reduces the ringing time of the railroad crossing. performing control to transmit the target speed of one or more trains set to suppress extension from the communication unit to the train traffic management device;
The railroad crossing control device according to claim 9 or 11, characterized in that: The control unit controls to continue or suppress the ringing of the railroad crossing based on a command from an operation management system that manages operation of the train.
The railroad crossing control device according to any one of claims 9 to 12, characterized in that: A control step in which the railroad crossing control device controls the ringing of the railroad crossing;
When a ground base device that transmits and receives control information to and from the railroad crossing control device fails, the track location management device receives the train location information that is one of the control information and is received from the train via the ground radio device. to the railroad crossing control device;
including
In the control step, when the ground base device fails, the railroad crossing control device receives the railroad location information received from the railroad location management device and one of the control information, which is temporary restriction during emergency operation of the train. controlling the ringing of the railroad crossing based on the critical speed information indicating the speed;
A railroad crossing control method characterized by: In the control step, the railroad crossing control device holds the critical speed information.
The railroad crossing control method according to claim 14, characterized in that: In the control step, the railroad crossing control device transmits the critical speed information to the rail traffic management device;
moreover,
a train speed information transfer step in which the track management device transfers the speed information to the train via the ground radio device;
The railroad crossing control method according to claim 14, characterized by comprising: In the control step, when the railroad crossing control device receives the on-track information of the plurality of trains, the railroad crossing control device suppresses the number of times the railroad crossing rings when the plurality of trains pass through the railroad crossing, and the railroad crossing rings. transmitting one or more target speeds of the train set to suppress the extension of time to the track management device;
moreover,
A target speed transfer step in which the on-track management device transfers the target speeds of one or more of the trains to the target train via the ground radio device;
The railroad crossing control method according to claim 14 or 16, characterized by comprising: In the control step, the railroad crossing control device continues or suppresses the ringing of the railroad crossing based on a command from an operation management system that manages operation of the train.
The railroad crossing control method according to any one of claims 14 to 17, characterized in that:

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