WO2013146429A1

WO2013146429A1 - Train control system

Info

Publication number: WO2013146429A1
Application number: PCT/JP2013/057687
Authority: WO
Inventors: 慶一齋藤
Original assignee: 日本信号株式会社
Priority date: 2012-03-30
Filing date: 2013-03-18
Publication date: 2013-10-03
Also published as: JP2013212711A; KR20150004359A; IN2014DN08203A; JP5937869B2; KR101880338B1; CN104203712A; CN104203712B; BR112014023970A2

Abstract

This invention pertains to a train control system using wireless communications. In this train control system a portable wireless device (PVRS) is detachably mounted to a maintenance vehicle (3) and the maintenance vehicle (3) is incorporated into a wireless train control system. The carriage length of the maintenance vehicle (3), the portable wireless device (PVRS) number, the frequency used for wireless communications, and the time that the maintenance vehicle (3) is on the track (main line) (2), etc., are recorded in the portable wireless device (PVRS) as basic information for the maintenance vehicle (3). The basic information for the maintenance vehicle (3) is sent to a ground device (SC) via trackside wireless devices (WRS) and a base wireless device (SRS), the distance measurement results from communications between the portable wireless device (PVRS) and the trackside wireless devices (WRS) are sent to the ground device (SC), and the ground device (SC) performs actions such as setting the maintenance car on-track warning range. As a result, safety during maintenance work using the maintenance vehicle can be improved whilst reducing cost.

Description

Train control system

The present invention relates to a train control system by wireless communication, including a radio device on the vehicle upper side, a radio device on the ground side, and a ground device that controls communication of the radio device on the ground side.

Patent Document 1 acquires work information including the position and work time of a work site on a track, extracts work support information related to the work information from train tracking information, and installs the work support information at the work site. A train operation management system that wirelessly transmits to a portable terminal is disclosed.
Patent Document 2 discloses a distance measurement result obtained by transmission / reception between a radio along a train traveling path and an on-board radio equipped with a train from the radio along the line. A wireless train control system that transmits to a ground device and determines a train position is disclosed.

JP 2002-002486 A JP 2008-162548 A

By the way, in maintenance and inspection work on a track using a maintenance vehicle, the maintenance vehicle is incorporated into a wireless train control system together with other general trains, and control to the general train is performed based on information such as the position of the maintenance vehicle. It is desirable to output information.
However, it is rare for multiple maintenance vehicles to be dispatched to all of them at the same time, and it is an extra cost burden to install a radio in all maintenance vehicles with few dispatch opportunities. there were.

This invention is made paying attention to the said subject, and it aims at improving the safety | security of a train operation, reducing a cost burden in the train control system by radio | wireless communication.

Therefore, the train control system according to the present invention is a train control system by radio communication, including a radio device on the vehicle side, a radio device on the ground side, and a ground device that controls communication of the radio device on the ground side, A portable radio that can be attached to and detached from the train is included as a radio on the upper side of the vehicle.

According to the above invention, since the portable radio is detachable from the train, for example, the radio is mounted on some maintenance vehicles actually used among the plurality of maintenance vehicles, and the train It can be incorporated into the control system, and the safety of train operation can be improved while reducing the cost burden of mounting the radio equipment.

It is a figure which shows the wireless train control system in embodiment of this invention. It is a figure which shows the detail of the portable radio | wireless machine mounted in a maintenance vehicle in embodiment of this invention. It is a flowchart which shows the train control using the portable radio | wireless machine in embodiment of this invention. It is a figure which shows the portable radio | wireless machine which comprises the power supply circuit of a maintenance vehicle in embodiment of this invention.

Embodiments of the present invention will be described below.
FIG. 1 shows an example of a wireless train control (hereinafter referred to as CBTC) system.
The CBTC system shown in FIG. 1 is wired to the front onboard radio VRS1 mounted on the front of the train 1, the rear onboard radio VRS2 mounted on the rear of the train 1, the ground device SC, and the ground device SC. It is arranged at predetermined intervals along the connected base radio SRS and the track (rail) 2 of the train 1 and can communicate with each other adjacent to each other. The base radio SRS and the on-board radios VRS1 and VRS2 are connected to each other. It is configured to include a alongside radio (ground side radio) WRS to be relayed and a portable radio PVRS that is detachably mounted on the maintenance vehicle 3.
The front onboard radio device VRS1 includes a directional antenna 51 that faces the front of the train 1, and the rear onboard radio device VRS2 includes a directional antenna 52 that faces the rear of the train 1.

In the CBTC system, the distance from each alongside radio device WRS to the train 1 is measured by wireless communication between the onboard radio devices (radio devices on the vehicle upper side) VRS1, VRS2 and the alongside radio device WRS.
The distance measurement results obtained in each alongside radio WRS are transmitted to the base radio SRS by communication between adjacent radios WRS, and further transmitted from the base radio SRS to the ground device SC. The SC determines the on-line position of the train 1.

Then, the ground device SC creates control information (ATC information such as speed limit information) in an automatic train control device (ATC: Automatic Train Control) based on the information on the on-line position of the train 1 and the like. , To the on-board radios VRS1 and VRS2 via the base radio SRS and the railway radio WRS.
Here, on-board wireless devices VRS1 and VRS2 are integrated in advance in a train 1 which is a general train such as a passenger train or a freight train.

On the other hand, the maintenance vehicle 3 for performing maintenance and inspection work on the track 2 is configured so that the portable radio device PVRS can be detachably mounted at a predetermined position.
That is, the portable radio device PVRS is a device having a size and weight that can be carried by an operator. The operator can carry the portable radio device PVRS to the maintenance vehicle 3 and install it. The portable radio device PVRS to which the vehicle 3 is attached can be removed and moved by an operator.
The maintenance vehicle 3 includes various known maintenance vehicles such as a railroad vehicle, a test vehicle, a Russell vehicle, a crane vehicle, a ballast carrier vehicle, and a tunnel inspection vehicle.

As shown in FIG. 2, the portable wireless device PVRS includes a first directional antenna 11 that faces the front of the maintenance vehicle 3, a second directional antenna 12 that faces the rear of the maintenance vehicle 3, and these

antennas

11, 12. And an arithmetic processing unit 13 including a CPU for performing wireless communication with the railway radio WRS.
In addition to a monitor (liquid crystal screen) 14 for displaying various information (including alarm information) transmitted from the ground device SC, the portable radio PVRS includes a lamp 15 and a buzzer 16 used for various alarms, Furthermore, an operation unit 17 such as a key button for allowing the operator to input various information can be integrally provided.

Each of a plurality of maintenance vehicles 3 that perform maintenance, inspection work, etc. of the track 2 managed by the CBTC system is provided with an installation part 31 having a common specification for detachably mounting the portable radio equipment PVRS.
The portable radio device PVRS can be provided with a power source such as a battery, and can be supplied with power from the maintenance vehicle 3 side while being mounted on the installation unit 31.
In addition, as the installation part 31, the fixing tool which fixes portable radio | wireless machine PVRS with the belt etc. to the predetermined location of the maintenance vehicle 3 simply can be provided.

In addition, the number of portable radio devices PVRS is less than the number of maintenance vehicles 3, and one portable radio device PVRS can be commonly used for a plurality of maintenance vehicles 3. It is.
When the maintenance vehicle 3 is run on the track 2 operated by a general train for maintenance work, the maintenance vehicle 3 is maintained on the service line 3 before entering the track (main line) 2. The portable radio device PVRS is mounted on the maintenance vehicle 3 used for work.

That is, the maintenance vehicle 3 that is not used for maintenance work waits on the lead-in line and does not affect the operation of the general train 1 that runs on the track (main line) 2, so it is necessary to mount the portable radio PVRS. Absent.
Therefore, among the maintenance vehicles 3 prepared in plurality, the maintenance used for the work is provided by mounting the portable radio device PVRS only on the maintenance vehicle 3 that travels on the track (main line) 2 for use in the work. Car 3 is incorporated into the CBTC system.

In general, since it is rare that all of the maintenance vehicles 3 prepared at the same time are dispatched at the same time, if only the maximum number of portable radios PVRS that can be dispatched at the same time are prepared, The portable radio equipment PVRS can be mounted on all maintenance vehicles 3 that run on the track (main line) 2 for use in work.
Accordingly, the number of portable radio devices PVRS smaller than the total number of maintenance vehicles 3 may be prepared, and the cost burden can be reduced compared with the case where the radio devices VRS are integrally mounted on all maintenance vehicles 3. .

In other words, in order to incorporate the maintenance vehicle 3 into the CBTC system using a smaller number of the wireless devices VRS than the number of the maintenance vehicles 3, the wireless device VRS is made portable and removable from the maintenance vehicle 3, One portable radio device PVRS can be commonly used for one maintenance vehicle 3.
When the maintenance vehicle 3 equipped with the portable radio device PVRS is on the track 2, it is wireless between the portable radio device PVRS and the along-line radio device WRS in the same manner as the on-board radio devices VRS1 and VRS2 of the general train 1. As a result of the communication, distance measurement information starting from each alongside radio WRS is obtained, and the distance measurement information is transmitted to the ground device SC via the base radio SRS. Determine the standing line position.

In addition, basic information of the maintenance vehicle 3 is stored in advance in a storage device 18 such as a semiconductor memory provided in the portable radio device PVRS.
The basic information of the maintenance vehicle 3 includes, for example, the train length of the maintenance vehicle 3, the number of the portable radio PVRS (number corresponding to the train organization number), the frequency used for wireless communication, and the maintenance vehicle 3 Therefore, the time (work scheduled start time and scheduled work end time) on the track (main line) 2 is included.
Note that the basic information of the maintenance vehicle 3 is not limited to the above, but includes, for example, information such as the type of the maintenance vehicle 3, the identification number of the maintenance vehicle 3, the content of the maintenance work, and the range where the maintenance work is performed. Can do.

Here, as shown in FIG. 2, when the portable wireless device PVRS is integrally provided with the monitor 14 and the operation unit 17, the operator operates the operation unit 17 and displays the operation result on the monitor 14. By checking the display, basic information can be changed and entered.
In addition, a writing device for changing and inputting the basic information of the portable wireless device PVRS is provided in a storage place of the portable wireless device PVRS, and the portable wireless device PVRS is set in the writing device, and the basic information Change and input work can be performed.

The basic information of the maintenance vehicle 3 stored in advance in the storage device 18 of the portable radio device PVRS is transmitted from the portable radio device PVRS to the alongside radio device WRS, and further to the ground device SC via the base radio device SRS. Sent.
The ground device SC identifies a plurality of maintenance vehicles 3 existing on the track (main line) 2 from the number of the portable radio device PVRS as basic information of the maintenance vehicle 3, and presents the positions of the individual maintenance vehicles 3 and their positions. As shown in FIG. 1, the existing line range is calculated for each maintenance vehicle 3 from the train length, and further, a predetermined distance (for example, 500 m) before and after the existing line range is set as an alarm range for the maintenance vehicle existing line.

When the general train 1 enters the alarm range of the maintenance vehicle presence line, the on-board radios VRS1 and VRS2 of the general train 1 are transmitted from the ground device SC via the base radio SRS and the alongside radio WRS. Then, a signal for warning that the vehicle has entered the warning range of the maintenance vehicle presence line is transmitted, and the warning is displayed on the monitor of the cab of the general train 1.
In addition, the ground device SC sets the current line range of the maintenance vehicle 3 as an entry prohibition section, and issues a stop point command corresponding thereto to the vehicle of the general train 1 via the base station radio SRS and the alongside radio WRS. It can transmit with respect to upper radio | wireless machine VRS1, VRS2.

As described above, if the on-line range of the maintenance vehicle 3 can be identified from the information on the position of the maintenance vehicle 3 and the train length of the maintenance vehicle 3, the operation of the maintenance vehicle 3 is performed on the track 2 However, the general train 1 can be operated safely.
In addition, as the basic information of the maintenance vehicle 3, by transmitting the frequency used for wireless communication to the ground device SC, it corresponds to the difference in frequency and communication method (FDMA method, TDMA method, etc.) depending on the system, Communication can be performed between the ground device SC and the portable radio device PVRS, and the versatility of the portable radio device PVRS can be improved.

Further, the ground device SC approaches the scheduled work end time from information on the time when the maintenance vehicle 3 is on the track (main line) 2 set in the portable radio device PVRS as basic information of the maintenance vehicle 3. A signal (along-line end information) for alarming the end of work is maintained via the base station radio SRS and the lineside radio WRS at the time before the set end time of the scheduled end time. It can be transmitted to the portable radio device PVRS of the car 3.
The portable radio equipment PVRS that has received the alarm signal of the work end time is approaching the operator by operating alarm devices such as the monitor 14, the lamp 15, and the buzzer 16 that are integrally provided. Be warned.

Here, the portable radio device PVRS is connected to a control circuit of an alarm device such as a monitor, a buzzer, or a lamp mounted on the maintenance vehicle 3, so that maintenance can be performed based on the alarm signal received by the portable radio device PVRS. An alarm device mounted on the vehicle 3 can be operated.
In addition, it is possible to arbitrarily set as basic information how much time before the scheduled end time the alarm signal is generated.

If the end time of the work can be alarmed as described above, the maintenance car 3 stays on the track 2 beyond the scheduled time in the maintenance work using the maintenance car 3, thereby obstructing the operation of the general train 1. It becomes possible to prevent this from happening.
In addition, it can comprise so that portable radio | wireless machine PVRS may be equipped with a timepiece, and it will be judged oneself whether it is approaching the scheduled end time, and an alarm will be issued by itself.

In addition, the ground device SC transmits the existing line information of the other maintenance vehicles 3 and the general train 1 around the maintenance vehicle 3 via the base station radio SRS and the alongside radio WRS, and the portable radio PVRS of the maintenance vehicle 3. Send to. The portable radio device PVRS that has received the on-line information of another train causes the monitor 14 (or a monitor provided integrally with the maintenance vehicle 3) to display the on-line information of the other train.
In addition to being able to display the numerical information of the distance to the other train 1 as the existing line information of other trains, the route on which the maintenance vehicle 3 is present is displayed graphically on the monitor 14, and the graphic indicating this route is displayed. In addition to the maintenance vehicle 3, the on-line position (the on-line range) of another train 1 (including another maintenance vehicle 3) can be displayed in an overlapping manner.

Moreover, when the other maintenance vehicle 3 and the general train 1 pass through another track 2 provided side by side with the track 2 where the maintenance vehicle 3 is present, the ground device SC displays information on the passing train, It transmits to the portable radio | wireless machine PVRS of the maintenance vehicle 3 via base radio | wireless machine SRS and alongside line radio | wireless machine WRS.
The portable radio device PVRS that has received the information on the passing train is a monitor 14, a lamp 15, a buzzer 16, and the like that are provided integrally with the portable radio device PVRS (or an alarm device provided in the maintenance vehicle 3). The train can be warned to the operator by

As an example, when a maintenance train 3 is on a double-track down (up) train line and is performing maintenance work, when the general train passes through the double-track up (down) exclusive train line, the general train 1 Warn workers of the passage of The warning of the passing train can be continuously performed after the passing train reaches a predetermined distance in front of the maintenance vehicle 3 until it is separated from the maintenance vehicle 3 by a predetermined distance or more.
If the maintenance vehicle 3 displays on-track information of other trains in the vicinity on the monitor 14 and issues a warning when there is a passing train, the safety of the work can be further improved.

An outline of operation control and alarm control on the ground side based on the wireless communication between the portable wireless device PVRS of the maintenance vehicle 3 and the ground device SC described above will be described based on the flowchart of FIG. .
First, information such as the current position of the maintenance vehicle 3, the basic information of the maintenance vehicle 3, and the current position of the general train 1 is acquired via the base station radio SRS and the station radio WRS (step S101).

Here, as a control for the general train 1 for preventing the general train 1 from entering the existing line range of the maintenance vehicle 3, the alarm range of the maintenance vehicle existing line is set to the current position of the maintenance vehicle 3 and the maintenance vehicle 3. Based on the basic information (step S111), it is then determined whether the general train 1 is in the alarm range (step S112), and an alarm signal is sent to the general train 1 that has entered the alarm range. Transmit (step S113).

In addition, as control for the maintenance vehicle 3 (portable wireless device PVRS) for enhancing the safety of maintenance work using the maintenance vehicle 3 in relation to other trains, Information that other trains pass through the other track 2 is transmitted to the portable radio PVRS with respect to the maintenance vehicle 3 that is on one of the double tracks (step S121).

Furthermore, as a control for the maintenance vehicle 3 (portable wireless device PVRS) for assisting management of maintenance work using the maintenance vehicle 3, whether or not the scheduled end time of the operation by the maintenance vehicle 3 is approaching, that is, Then, it is determined whether or not it is a predetermined time before the scheduled end time (step S131), and when it is a predetermined time before the scheduled end time, a signal that warns that the scheduled end time is approaching, a portable radio PVRS (Step S132).

By the way, if the maintenance vehicle 3 is not mounted with the portable radio device PVRS but is placed on the track 2 for maintenance work, the ground device SC is connected to the maintenance vehicle 3 that is not equipped with the portable radio device PVRS. Unable to grasp the current line.
Therefore, in the train control system on the premise that the portable radio device PVRS is mounted on the maintenance vehicle 3, it is necessary to ensure that the portable radio device PVRS is mounted on the maintenance vehicle 3.

Therefore, the maintenance vehicle 3 can be configured not to be able to self-run in a state where the portable radio device PVRS is not mounted. With this configuration, the maintenance vehicle 3 cannot travel from the lead-in line to the track 2 (main line), and the maintenance vehicle 3 not equipped with the portable radio device PVRS is present on the track 2 (main line). It can be avoided.

For example, as shown in FIG. 4, a circuit PSC constituting a part of a power circuit (power supply line) of the maintenance vehicle 3 is provided for the portable radio device PVRS, and the portable radio device PVRS is not mounted. In a state, the power supply circuit of the maintenance vehicle 3 is cut off, the power supply to the maintenance vehicle 3 cannot be turned on, the maintenance vehicle 3 cannot be self-propelled, and the portable radio device PVRS is mounted at a predetermined position, thereby Are connected so that the maintenance vehicle 3 is powered on so that the maintenance vehicle 3 can self-run. In other words, the portable radio device PVRS is provided with a master key function for powering on the maintenance vehicle 3.

Here, the power supply circuit of the maintenance vehicle 3 is, for example, a circuit that connects the power supply 21 to a control circuit, a drive circuit, etc., and the power supply 21 may be mounted on the maintenance vehicle 3, An external power supply may be used.
And in the example shown in FIG. 4, the circuit PSC (harness) which comprises a part of circuit which connects the power supply 21 and a control circuit, a drive circuit, etc. is made with respect to the convex part 33 of the lower surface of portable radio equipment PVRS. The both

sides

32a and 32b of the circuit PSC are exposed on both side surfaces. On the other hand, on the maintenance vehicle 3 side, when the portable radio device PVRS is mounted at a predetermined position, a power supply side terminal 41a and a drive side terminal 41b connected to both

terminals

32a and 32b of the circuit PSC are provided. It is.

As a result, as shown in FIG. 4A, when the portable radio device PVRS is mounted at a predetermined position of the maintenance vehicle 3, the terminal 41a of the maintenance vehicle 3 is connected to the terminal 32a of the portable radio device PVRS, and The terminal 41b of the maintenance vehicle 3 is connected to the terminal 32b of the portable radio device PVRS, and each of them is in an electrically conductive state, and the power supply line from the power source 21 to the control circuit, the drive circuit, etc. is connected, and the control circuit, the drive circuit, etc. The maintenance vehicle 3 can be run by supplying power to the vehicle.
On the other hand, as shown in FIG. 4B, in the state where the portable radio device PVRS is not mounted on the maintenance vehicle 3, the connection between the terminals 41a and 42b is cut off, so that the control circuit and the drive are supplied from the power source 21. The power supply line to the circuit or the like is cut off, the power cannot be supplied to the control circuit or the drive circuit, and the self-running state becomes impossible.

In addition, for example, when the maintenance vehicle 3 includes an indwelling brake (parking brake) that is released by containing compressed air, for example, the command circuit for containing compressed air is cut off when the portable radio device PVRS is not mounted. The in-place brake (parking brake) cannot be released to disable self-propulsion, the portable radio unit PVRS is installed, the command circuit is connected, and the in-place brake can be released with compressed air. Become self-propelled.
In other words, it can be configured that the portable radio device PVRS is mounted so as to be a condition for releasing the indwelling brake (parking brake).

In addition, a switch or a sensor for detecting whether or not the portable radio device PVRS is mounted on the maintenance vehicle 3 is provided, and power is turned on by a logical operation on condition that the portable radio device PVRS is mounted. The indwelling brake can be released.
Further, even if the portable radio device PVRS is not mounted on the maintenance vehicle 3, the operation to the power running side by the master controller cannot be performed mechanically, or the operation to the power running side is performed. It can also be configured such that the operation is invalid and the train does not accelerate.
Further, a switch or a sensor for detecting whether or not the portable radio device PVRS is mounted on the maintenance vehicle 3 is provided, and when the maintenance vehicle 3 is powered on in a state where the portable radio device PVRS is not mounted. In addition, it can be configured to issue an alarm for prompting the portable vehicle PVRS to be mounted on the maintenance vehicle 3.

DESCRIPTION OF SYMBOLS 1 ... Train, 2 ... Track, 3 ... Maintenance vehicle, 11, 12 ... Antenna, 13 ... Arithmetic processing part, 14 ... Monitor, 15 ... Lamp, 16 ... Buzzer, 17 ... Operation part, 18 ... Memory | storage device, 21 ... Power supply , WRS ... Station radio, SRS ... Base radio, SC ... Ground equipment, PVRS ... Portable radio

Claims

A train control system by radio communication, including a radio device on the vehicle side, a radio device on the ground side, and a ground device that controls communication of the radio device on the ground side,
A train control system including a portable radio that can be attached to and detached from a train as the radio on the vehicle.
The train control system according to claim 1, wherein the portable radio device is detachably attached to a maintenance vehicle.
The portable radio has information on a maintenance vehicle to be attached,
The train control system according to claim 2, wherein the ground device acquires information on the maintenance vehicle from the portable wireless device via the ground-side wireless device.
The ground device determines the position of the maintenance vehicle by wireless communication between the ground-side wireless device and the portable wireless device, and based on the position of the maintenance vehicle and the information on the maintenance vehicle. The train control system according to claim 3, wherein an alarm range for a maintenance vehicle presence line is set.
The ground device transmits track information indicating the status of a train in the vicinity of the maintenance vehicle to the portable radio via the ground radio,
The train control system according to any one of claims 2 to 4, wherein the portable radio device outputs a signal for displaying on-line information sent from the ground device on the maintenance vehicle.
The ground device transmits passing train information indicating that a train passes through another track provided side by side with respect to the track on which the maintenance vehicle is located, via the ground-side radio device, the portable radio device. To
The train control system according to any one of claims 2 to 4, wherein the portable radio device issues an alarm signal based on the passing train information.
The ground device transmits on-line end information that warns the end time of the on-line time of the maintenance vehicle to the portable radio via the ground side radio,
The train control system according to any one of claims 2 to 4, wherein the portable radio device issues an alarm signal based on the on-line end information.
The train control system according to any one of claims 2 to 4, wherein the maintenance vehicle can be self-propelled by mounting the portable radio at a predetermined mounting position.