JP5567638B2 - Radio train control system ground device and radio train control system - Google Patents

Description

The present invention relates to a ground system such as a radio train control system.

  Conventionally, the presence detection of a train has been carried out by a track circuit. According to the track circuit, both existing and non-existing lines can be detected, but there is a problem that installation and maintenance thereof takes time and cost. On the other hand, in recent years, a CBTC (Communication Based Train Control) that eliminates the need for a track circuit, detects the train position on the ground side by wirelessly communicating the train position information measured by the on-board device to the ground device, and controls the train. System development is underway (see, for example, Patent Document 1).

JP 2011-116212 A

  However, the train position detection itself in the CBTC system has a problem that the reliability can be lowered in principle as compared with the track circuit system. That is, the CBTC system is a so-called open circuit system (Normal Open) system on the premise that an accurate train position is detected in the on-board device and the train position is reliably transmitted to the ground side. For this reason, for example, when the wireless communication is interrupted due to a failure of the on-board device, the presence line detection cannot be performed, and the presence line detection of a maintenance vehicle or the like not equipped with the wireless communication device cannot be performed. A particular problem is that it is not possible to detect “absent lines” that are possible with track circuits.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to reliably detect the presence of a train in a train control system in which an on-board device transmits position information of the own train to a ground device by wireless communication. And to be able to do it safely.

The first invention for solving the above-described problems is
The ground device receives the on-board position signal from the on-board device of the train that runs on the track that can detect the train line for each track circuit detection section by the track circuit, and train control is performed based on the on-vehicle position signal. A ground device (for example, the ground device 30 in FIG. 3) of the wireless train control system for performing
First mismatch detection means (for example, FIG. 3) that detects the occurrence of a mismatch that does not include the train position based on the on-board position signal in the track circuit detection section that is detected as being present by the train presence detection. Inconsistency detector 130);
When the occurrence of the inconsistency is detected, an entry suppression control means (for example, the mismatch detection unit 130 in FIG. 3) that performs train control to suppress entry into the track circuit detection section that is detected as being present,
It is a ground device equipped with.

  According to the first aspect of the present invention, in the wireless train control system in which the ground device receives the on-vehicle position signal transmitted from the on-vehicle device by radio communication and performs train control, the train position detection based on the on-vehicle position signal is performed. While performing, it is possible to reliably and safely detect the presence of the train. In other words, if there is an inconsistency that a track position based on the received on-board position signal is not included in the track circuit detection section detected as being present by the track presence detection by the track circuit, it is detected that there is a presence line. Entry into the track circuit detection section is suppressed. As a result, for example, when there is a failure of the on-board device or a maintenance vehicle or the like not equipped with a wireless communication function, it is possible to quickly grasp the presence line of these vehicles.

Further, as a second invention, the ground device of the first invention,
Initial registration means (for example, initial registration in FIG. 3) that performs wireless communication with the on-board device of each train and performs initial train registration related to the start of operation on the business day including registration of the train position based on the on-board position signal Part 140),
Inconsistency detection means at the start of operation for detecting the occurrence of inconsistency between the train position registered by the initial registration means and the presence / absence of the presence / absence of each track circuit detection section by the train presence line detection (for example, inconsistency in FIG. 3) Detection unit 130),
An operation start deterring unit (for example, the processing unit 100 and the inconsistency detecting unit 130 in FIG. 3) for deterring operation start when the operation start mismatch detection unit performs detection;
You may comprise the ground apparatus provided further.

  According to the second aspect of the invention, at the start of operation on a business day, train initial registration processing including registration of a train position based on the on-board position signal is performed, and each track circuit based on the initial registered train position and on-line detection is detected. When the occurrence of inconsistency with the presence / absence of the existing line is detected, the operation start is suppressed. As a result, there are trains that have malfunctioned on-board equipment at the start of business days or maintenance vehicles that are not equipped with wireless communication functions, or trains that have not been powered on at the start of operation (on-board equipment). Even in the case where there is, it is possible to quickly grasp the position of each train.

Moreover, as 3rd invention, it is the ground device of 1st or 2nd invention,
Each of the track circuit detection sections is subdivided into one or more position detection sections (for example, the position detection section S in FIG. 2),
Train presence / absence determination means for determining the presence / absence of a train in units of the position detection section based on the on-board position signal (for example, the block logic circuit unit 200 in FIG. 3);
Detects the occurrence of inconsistency in which any of the position detection sections included in the track circuit detection section detected as being present by the train presence detection does not have a position detection section determined by the train presence determination means. Second mismatch detection means (for example, mismatch detection unit 130 in FIG. 3),
Further comprising
The entry suppression control means is a train that suppresses entry into the track circuit detection section that is detected as being present at the time of detection by either the first mismatch detection means or the second mismatch detection means. Do control,
A ground device may be configured.

  According to the third aspect of the invention, the presence or absence of a train is determined in units of position detection sections obtained by subdividing each track circuit detection section based on the on-board position signal. If there is no position detection section in which the train is determined to be present in any of the position detection sections included in the track circuit detection section that has been detected as being present by the train presence detection, this is detected as inconsistency.

Moreover, as 4th invention, it is the ground device of 3rd invention,
The train presence / absence determining means further includes, for each position detection section, a logic circuit section (for example, the block logic circuit section 200 in FIG. 10) that detects the presence of a train in the position detection section.
The logic circuit unit is 1) a drop contact that opens when the train position based on the on-vehicle position signal is within the position detection section and closes when the train position is outside the position detection section (for example, the contact 2SR in FIG. 10). ), And 2) a storage-holding upper contact (for example, contact 2SM in FIG. 10) that holds the recovery of the position storage relay, and the detection result of the track circuit detection section including the position detection section is opened. And a parallel circuit in which the upper contact (for example, contact 1TR in FIG. 10) that is closed in the case of a non-existing line is connected in parallel with the position memory relay,
A ground device may be configured.

The block diagram of a radio train control system. Setting example of position detection section. The block diagram of a ground apparatus. The data structural example of 1st standing line management information. The data structural example of 3rd standing line management information. The data structural example of area structure information. The data structural example of 2nd standing line management information. The data structural example of inconsistent area information. The data structural example of train registration information. The circuit block diagram of a block logic circuit part. Operation | movement explanatory drawing of a block logic circuit part. The flowchart of a standing line management process.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the applicable embodiment of the present invention is not limited to this.

[System configuration]
FIG. 1 is a configuration diagram of a radio train control system 1 of the present embodiment. The wireless train control system 1 includes an on-board device 10 mounted on a train 20 traveling on a track R and a ground device 30. The on-board device 10 and the ground device 30 can perform wireless communication via a given wireless communication line.

  Here, as shown by a broken line in FIG. 1, the wireless communication line may be configured by a plurality of wireless base stations 42 installed so that the communication area continuously includes the track R, or Alternatively, a loop antenna or a leaky coaxial cable (LCX) laid along the track R may be used.

  The track R is provided with a track circuit for each track circuit detection section T obtained by dividing the track, and a transmitter / receiver 44 transmits and receives track circuit signals to and from the track circuit according to the control of the ground device 30 at the boundary of each track circuit. Is connected. In each track circuit, the left and right rails of the track R are short-circuited by the iron wheel and the axle of the train 20.

  The onboard device 10 transmits an onboard position signal including the train ID of the own train and the position of the own train to the ground device 30. The position of the own train is calculated based on, for example, a measured value of the rotational speed of the speed generator attached to the axle. Further, when the ground element for position correction installed along the track R passes, the installation position (absolute position) of the ground element is acquired by performing wireless communication with the ground element, thereby determining the train position. to correct.

  The ground device 30 is installed at, for example, a central headquarters, and controls the operation of each train 20 by performing wireless communication with the on-board device 10. In particular, in this embodiment, based on the on-board position signal received from the on-board device 10, the position of the train is detected in units of position detection sections. The ground device 30 can also detect the presence / absence of a train for each track circuit detection section by transmitting / receiving track circuit signals to / from each transmitter / receiver 44. Further, the ground device 30 controls each train by transmitting a travel instruction signal such as a speed check pattern instruction to each train based on the detected position of each train.

  In the present embodiment, for the sake of simplicity of explanation, the route is assumed to be a double line, and is illustrated and described with attention paid to one of the up line and the down line. However, this is only an example, and the present invention can be applied to a single line, a multiple line, and the like.

[Setting the position detection section]
FIG. 2 is an example of setting a position detection section. The position detection section S is defined as a section obtained by subdividing each track circuit detection section T into one or more sections. In the example shown in FIG. 2, each station and each station are set as one track circuit detection section T (1T to 5T). Then, for the track circuit detection section T (1T, 3T, 5T) including the station, it is set as one position detection section S, and for the track circuit detection section T (2T, 4T) between the stations, it is 1 or more. The section divided into two is set as the position detection section S (2S to 4S, 6S to 7S). The setting of the position detection section S is not limited to this, and one position detection section S is included in only one track circuit detection section T, that is, if it is set so as not to cross the boundary of the track circuit detection section T. good.

[Configuration of ground equipment]
FIG. 3 is a configuration diagram of the ground device 30. According to FIG. 3, the ground device 30 includes a processing unit 100, a block logic circuit unit 200, and a storage unit 300. Note that the present embodiment is mainly characterized by position detection and position management of each train, and the conventional technology can be applied to the instruction to travel to each train based on the detected position of each train, so the description is omitted. .

  The processing unit 100 is realized by an arithmetic device such as a CPU, for example, and performs overall control of the ground device 30 based on programs and data stored in the storage unit 300, data received from the on-board device 10 and the transceiver 44, and the like. Do. In the present embodiment, the processing unit 100 includes an on-vehicle signal receiving unit 110, a track circuit signal receiving unit 120, a mismatch detection unit 130, and an initial registration unit 140.

  The on-vehicle signal receiving unit 110 has a position detection relay nSR corresponding to each position detection section nS (n is an integer of 1 or more). Then, based on the on-board position signal received from the on-board device 10, the position of each train 20 is determined in units of the position detection section S, and the position memory corresponding to the position detection section nS determined to include the train position. The relay nSM is operated (excited).

  Moreover, the determination result of the train position by the on-board signal receiving unit 110 is stored as first on-line management information 360. FIG. 4 is a diagram illustrating an example of a data configuration of the first on-line management information 360. According to FIG. 4, the first track management information 360 stores a track train ID 362 in association with each position detection section 361.

  The track circuit signal receiving unit 120 includes track relays mTR corresponding to track circuit detection sections mT (m is an integer of 1 or more). Then, based on the track circuit signal received from the transmitter / receiver 44, the track presence / absence of the train is determined using the track circuit detection section T as a unit, and the track relay mTR corresponding to the track circuit detection section mT determined to be a track is determined. Restore.

  In addition, the determination result of the presence / absence of a track by the track circuit signal receiving unit 120 is stored as third track management information 380. FIG. 5 is a diagram illustrating an example of a data configuration of the third on-line management information 380. As illustrated in FIG. According to FIG. 5, the third standing line management information 380 stores the standing line information 382 indicating the standing line / non-present line in association with each track circuit detection section 381.

  Here, the set positions of the position detection section S and the track circuit detection section T are determined as the section configuration information 320. FIG. 6 is a diagram illustrating an example of the data configuration of the section configuration information 320. As shown in FIG. 6, the section configuration information 320 includes track circuit detection section information 322 for the track circuit detection section T and position detection section information 324 for the position detection section S. The track circuit detection section information 322 stores position information of both ends of each track circuit detection section 322a, and stores the start end position 322b and the end position 322c in association with each other. The position detection section information 324 stores position information of both ends of the position detection section 324a, and stores the start end position 324b and the end position 324c in association with each other.

  The inconsistency detecting unit 130 refers to the second standing line management information 370 and the third standing line management information 380 and refers to the standing line / non-present line with the track circuit detection section T as a unit and the standing line / line with the position detection section S as a unit. Detect non-existing line mismatch.

  Here, the second standing line management information 370 is information on the presence / absence line in units of the position detection section S detected by the blocking logic circuit unit 200. FIG. 7 is a diagram illustrating an example of a data configuration of the second standing line management information 370. According to FIG. 7, the second standing line management information 370 stores the standing line information 372 indicating the standing line / non-present line for each position detection section 371.

  Then, the mismatch detection unit 370 has one or more positions in the position detection section S included in the track circuit detection section T for each track circuit detection section T that is a standing line in the third track management information 380. It is determined whether the detection section S is a standing line in the second standing line management information 370. If all of the position detection sections included in the track circuit detection section T that is a standing line are non-existing lines, it is determined that a mismatch has occurred in the track circuit detection section T. And the mismatch detection part 130 suppresses the approach of the train to the said track circuit detection area T by making all the position detection sections S contained in the track circuit detection area T which judged generation | occurrence | production of mismatch into a standing line.

  The detection result by the inconsistency detection unit 130 is stored as inconsistency section information 330. FIG. 8 shows an example of the data structure of the inconsistent section information. According to FIG. 8, the inconsistency section information 330 stores inconsistency information 332 indicating the presence or absence of inconsistencies for each track circuit detection section 331 in association with each other.

  The initial registration unit 140 performs initial train registration for registering the positions (initial positions) of all existing trains at the start of operation on each business day. Specifically, the train ID and the travel position included in the on-board position signal received from the on-board device 10 are associated with each other and stored as train registration information 340. FIG. 9 is an example of the data configuration of the train registration information 340. As illustrated in FIG. 9, the train registration information 340 stores a train position 342 in association with each train ID 341.

  The blocking logic circuit unit 200 is provided corresponding to each position detection section S, and detects the presence / absence line in the corresponding position detection section S based on the operation states of the position detection relay nSR and the track relay mTR.

  FIG. 10 is a circuit configuration diagram of the block logic circuit unit 200. In FIG. 10, the blocking logic circuit 200 is configured by a relay, but may be realized by using an electronic circuit based on digital signal processing. In addition, FIG. 10 illustrates a circuit configuration of the block logic circuit unit 200 that detects the position detection section 2S as a specific example. A position detection section 1S is adjacent to the front side (entrance side) of the position detection section 2S, and a position detection section 3S is adjacent to the front side (advance side). Further, it is assumed that the position detection sections 1S, 2S, 3S are included in the same track circuit detection section 1T.

  The blocking logic circuit unit 200 includes 1) a drop contact 2SR of the position detection relay 2SR in the position detection section 2S to be detected and 2) an upper contact 2SM of the position storage relay 2SM between the power supply terminal 202 and the output terminal 204. The upper contact 3SR of the position detection relay 3SR in the front position detection section 3S, the upper contact 1TR of the track relay 1TR in the track circuit detection section 1T including the position detection section 2S to be detected, and the position detection section in front of the hand A parallel circuit in which the upper contact 1SR of the 1S position detection relay 1SR is connected in parallel is connected in series. Further, the output terminal 204 is connected to the position storage relay 2SM. Then, the non-existing / present line of the position detection section nS to be detected is determined by the operation / restoration of the position storage relay 2SM.

  Note that the circuit configuration of the block logic circuit unit 200 in FIG. 10 is merely an example, and it is needless to say that additional contacts may be added. For example, a contact that operates based on a check-in / check-out signal to the track circuit detection section 2T may be further connected in parallel to the parallel circuit 2).

(A) Normal Operation FIG. 11 is an explanatory diagram of the operation of the block logic circuit unit 200 during normal operation. FIG. 11 shows an operation of the block logic circuit unit 200 corresponding to the position detection section 2S shown in FIG. 10 as a specific example. Further, with the right direction as the traveling direction of the train, in order from the top, the train position, the operation states of the position detection relays 1SR, 2SR, 3SR which are the vehicle position detection conditions, the operation state of the position storage relay 2SM, and the track The operation state of track relay 1TR used as a circuit condition is shown. As for the operation state of the relay, “H” indicates operation and “L” indicates recovery.

  First, in the state where the train is located in the position detection section 1S (a), the position detection relay 1SR operates, and the position detection relays 2SR and 3SR and the track relay 1TR are restored. That is, the upper contact 1SR and the drop contact 2SR are closed, and the upper contacts 3SR and 1TR are opened. Therefore, the power supply terminal 202 and the output terminal 204 are electrically connected, and the position storage relay 2SM operates to output a non-existing line. Further, the upper contact 2SM is closed.

  Next, when the train enters the position detection section 2S (b), the position detection relay 2SR operates to open the drop contact 2SR. As a result, the power supply terminal 202 and the output terminal 204 are disconnected, and the position storage relay 2SM is restored to output the standing line. Further, the upper contact 2SM is opened. At this time, the position detection relay 1SR is operating and the upper contact 1SR is closed. Further, the position detection relay 3SR is restored, and the upper contact 3SR is opened. In addition, the track relay 1TR is restored, and the upper contact 1TR is opened.

  Subsequently, when the train completely advances from the position detection section 1S and enters the position detection section 2S (c), the position detection relay 1SR is restored and the upper contact 1SR is opened. However, the position detection relay 2SR is operating, and the drop contact 2SR remains open. Therefore, the position memory relay 2SM remains restored and outputs a standing line. At this time, the position detection relay 3SR is restored, and the upper contact 3SR is opened.

  Thereafter, when the train enters the position detection section 3S (d), the position detection relay 3SR is operated, and the upper contact 3SR is closed. However, the position detection relay 2SR is operating, and the drop contact 2SR remains open. Therefore, the position memory relay 2SM remains restored and outputs a standing line.

  When the train completely advances from the position detection section 2S (e), the position detection relay 2SR is restored and the drop contact 2SR is closed. Accordingly, the power supply terminal 202 and the output terminal 204 are brought into conduction, and the position storage relay 2SM operates to output a non-existing line. Further, the upper contact 2SM is closed.

(B) Operation at the time of failure of the on-board device The case where the on-board position signal from the train is not received due to a power failure or failure will be described. Consider a case where the on-board position signal from the train is no longer received while the train is positioned in the position detection section 2S ((c) in FIG. 11). Hereinafter, this train is referred to as a “failed train”. In this case, the position detection relay 2SR is restored and the drop contact 2SR is closed. However, since all the upper contacts 2SM, 1SR, 3SR, and 1TR are opened, the position memory relay 2SM is not operated and remains restored, and the upper contact 2SM remains opened. Therefore, the standing line is maintained.

  Next, when the failed train starts to enter the position detection section 3S without receiving the on-board position signal ((d) in FIG. 11), the position detection relay 3SR is not operated yet and is still restored. The upper contact 3SR remains open. Therefore, the position memory relay 2SM remains restored and the existing line of the position detection section 2S is maintained.

  Subsequently, even if the failed train has completely advanced from the position detection section 2S without receiving the on-board position signal ((e) in FIG. 11), the position detection relay 3SR remains restored without operating, The upper contact 3SR remains open. Therefore, the position storage relay 2SM remains restored, and the standing line of the position detection section 2S is output.

  When the train further fails and the track circuit detection section 1T including the position detection section 2S is completely advanced, the track relay 1TR is operated and the upper contact 1TR is closed, so that the position memory relay 2SM is operated. The position detection section 2S is a non-existing line. At this time, the upper contact 2SM is closed.

  As described above, when a train is present but the on-board position signal is not received due to a failure of the on-board device 10 or the like, the position detection relay 2SR is restored, but the upper contact 2SM of the position memory relay 2SM is In addition to opening, the upper contacts 1SR, 3SR, 1TR are also opened, so that the output of the standing line is maintained. Then, when the failed train has completely moved into the track circuit detection section 1T including the position detection section 2S, the track relay 1TR is operated and the upper contact 1TR is closed, so that the position memory relay 2SM is operated. To output a non-existing line in the position detection section 2S. Therefore, even if there is a faulty train in the position detection section S by the blocking logic circuit unit 200, as long as the faulty train exists in the track circuit detection section T including the position detection section S, the position detection section Output and hold S as “present line”. Further, when the failed train advances from the track circuit detection section T including the position detection section S, the position detection section S is automatically detected as “non-present line”.

  In this case, the standing line of the position detection section 2S is output even when the train is not positioned in the position detection section 2S but is positioned in the position detection section 3S. This is because the position detection sections 2S and 3S are set to be included in the same track circuit detection section 1T. That is, in the state where the on-board position signal is not received, the absence line of the position detection section 2S is output with the detection of the absence line of the track circuit detection section 1T including the position detection section 2S to be detected. In this embodiment, the track circuit functions as a backup system that guarantees that the position detection based on the vehicle position signal is operating correctly, and the position detection operation based on the vehicle position signal is incorrect. In addition, it is configured to realize train control within a minimum allowable range. Since laying and maintaining track circuits is very expensive and time-consuming, considering the reduction of the number of track circuits as much as possible, the length (size) of track circuits increases, and within one track circuit detection section This is because the position detection section is subdivided.

  Moreover, although the example of a failure train was given and demonstrated, it is the same also when the vehicle which divided | segmented the composition remained in the position detection area for some reason.

(C) Operation immediately after power-on The operation of the closing logic circuit unit 200 immediately after power-on of the ground device 30 such as a time point before the first departure of a business day will be described. As a state before the power is turned on, all of the position detection relays 1SR, 2SR, 3SR, the position storage relay 2SM, and the track relay 1TR are restored. That is, the drop contact 2SR is closed, and the upper contact 3SR, 2SM, 1TR are all open. Then, consider the operation when power is turned on from this initial state.

  That is, when there is no train in any of the position detection sections 1S to 3S, the track relay 1TR operates and the upper contact 1TR is closed. Accordingly, the power supply terminal 202 and the output terminal 204 are brought into conduction, and the position memory relay 2SM operates to output a non-existing line. Further, the upper contact 2SM is closed. The same applies to the position detection sections 1S and 3S.

  When the train is present in the position detection section 1S and not in the position detection sections 2S and 3S, the position detection relay 2SR is restored and the drop contact 2SR is closed, and the track relay 1TR operates. The upper contact 1TR is closed. Therefore, the power supply terminal 202 and the output terminal 204 are brought into conduction, and the position memory relay 2SM operates to output a non-existing line. Further, the upper contact 2SM is closed.

  Further, when the train exists in the position detection section 2S, the position detection relay 2SR operates to open the drop contact 2SR connected in series. Therefore, the position memory relay 2SM is restored and the standing line is output. Further, the upper contact 2SM is opened.

In addition, when the train exists in the position detection section 3S and does not exist in the position detection sections 1S and 2S,
The position detection relay 2SR is restored and the drop contact 2SR is closed, and the position detection relay 3SR is operated to close the upper contact 3SR. Therefore, the power supply terminal 202 and the output terminal 204 are electrically connected, and the position memory relay 2SM operates and outputs a non-existing line. Further, the upper contact 2SM is closed.

  In this way, even immediately after the ground device 30 is turned on, it is possible to correctly detect the presence of the train in the position detection section S to be detected.

  Further, consider a case where there is a train in which the power of the on-board device 10 is not turned on, a train in which the on-board device 10 is broken, or a train not equipped with a wireless communication function. In this case, all of the position detection relays 1SR, 2SR, and 3SR remain restored. Further, the track relay 1TR is restored, and the upper contact 1TR is opened. For this reason, the position memory relay 2SM remains restored without operating and outputs a standing line.

  By the way, in the presence line detection, the detection of the non-present line is important from the principle of fail-safe. In other words, it is absolutely necessary to avoid detecting a non-existing line when a train is actually present. Conversely, due to a system failure or the like, it is permissible to detect an on-line even if no train actually exists. This is because it is a safe operation.

  According to the block logic circuit unit 200 of the present embodiment, when a train is present in the position detection section S to be detected, when an on-board position signal is not received due to a failure of the on-board device 10 or immediately after turning on the power. Also outputs a standing line. And the absence line of the position detection area S is reliably output by detecting the absence line of the track circuit detection area T including the position detection area S to be detected.

  Returning to FIG. 3, the determination result of the presence / absence of a line by the closing logic circuit unit 200 is stored as second line management information 370.

  The storage unit 300 is realized by a storage device such as a ROM, a RAM, and a hard disk, and stores a system program for the processing unit 100 to control the ground device 30 in an integrated manner, a program and data for realizing various functions, and the like. At the same time, it is used as a work area of the processing unit 100 and temporarily stores calculation results executed by the processing unit 100, data received from the on-board device 10, and the like. In the present embodiment, the storage unit 300 stores a track management program 310, section configuration information 320, inconsistent section information 330, train registration information 340, and track management information 350. The standing line management information 350 includes first standing line management information 360, second standing line management information 370, and third standing line management information 380.

[Process flow]
FIG. 12 is a flowchart for explaining the standing line management process. This process is a process that is started after the ground device 30 is turned on, and is realized by the processing unit 100 executing the on-line management program 310.

  First, the track circuit signal receiving unit 120 starts the presence line detection in units of track circuit detection sections. Based on the presence line detection result, the third on-line management information 380 is updated as needed.

  The initial registration unit 140 performs initial registration processing. That is, if an onboard position signal is received from the onboard apparatus 10 (step A1: YES), the transmission source train is identified from the train ID included in the received onboard position signal, and the train registration information 340 is referred to. To determine whether it is a registered train. If not registered, the train ID and the train position included in the received on-board position signal are associated with each other and added to the train registration information 340, whereby the train is initially registered (step A3). Next, the inconsistency detection unit 130 compares the initial position of the initially registered train with the in-line detection result with the track circuit detection section T as a unit, and detects whether a mismatch has occurred. As a result, if inconsistency is detected (step A5: NO), for example, a warning process of performing a predetermined warning notification is performed (step A7).

  If the initial registration is completed for all trains (step A9: YES), it is determined that the initial registration of the train is completed, and it is determined that the radio train control system 1 can be operated, and the management of the train on the business day is started. To do.

  That is, the processing unit 100 monitors communication with all trains (on-board device 10), and if a train (on-board device 10) that has lost communication occurs (step A11: YES), the emergency for all trains A stop command is output (step A13). After that, if communication with the communication-disrupted train (on-board device 10) is restored (step A15: YES), the mismatch detection unit 130 determines whether the position / non-existence line in the track circuit detection section T and the position The presence / absence of a mismatch between the existing line and the non-existing line is detected with the detection section S as a unit. As a result, if no inconsistency is detected (step A17: YES), the cancellation of the emergency stop command is output (step A19). Then, the process returns to Step A11.

  Further, the mismatch detection unit 130 detects the occurrence of a mismatch between the track circuit detection section T and the position detection section S as needed, and if a mismatch is detected (step A21). : YES), the orbit detection path section T in which this inconsistency has occurred is registered (step A23), and the position detection section S included in the track circuit detection section T is set to “present line” (step A25). When the inconsistency that the track position based on the on-vehicle position signal is not included in the track circuit detection section T detected by the track circuit by the setting of the “standing line”, the track circuit detection section is detected. Train entry to T is deterred. Then, it returns to step A11.

  Further, when there is a track circuit detection section registered as inconsistency (step A27: YES), the mismatch detection unit 130 determines whether or not the mismatch in the track circuit detection section T has been eliminated. As a result, if the inconsistency is eliminated (step A29: YES), the registration of inconsistency in the track circuit detection section T is canceled (step A31). Then, it returns to step A11.

[Function and effect]
As described above, in the wireless train control system 1 according to the present embodiment, the on-line detection in units of the position detection section S is performed in the ground device 30 based on the on-board position signal received from the on-board device 10. Further, in the block logic circuit unit 200 included in the ground device 30, the track relay of the track circuit detection section T including the position detection section S to be detected even when the on-board position signal from the on-board device 10 is not received. By 1TR, the presence / absence line of the position detection section S to be detected can be detected in a fail-safe manner. This makes it possible to more accurately and safely detect the presence of a train in the radio controlled train system.

  It should be noted that embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can of course be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Radio train control system 10 On-board apparatus 30 Ground apparatus 100 Processing part 110 On-vehicle signal receiving part, nSR Position detection relay 120 Track circuit signal receiving part, mTR Track relay 130 Mismatch detection part, 140 Initial registration part 200 Closure logic circuit Unit 300 Storage unit 310 Line management program, 320 Section configuration information 330 Unmatched section information, 340 Train registration information 350 Line management information 360 First line management information, 370 Second line management information 380 Third line management information 20 Train 42 Radio Base station, 44 transceiver

Claims (4)

Receiving terrestrial device on-board position signal from the on-board device of a train traveling on the orbits capable train-rail detected by the track circuits for each track circuit detection sections through the wireless communication, on the basis of the vehicle on the position signal A ground device for a radio train control system that performs train control,
Initial registration means for performing initial communication on the business day including registration of the train position based on the on-board position signal by performing wireless communication with the on-board device of each train;
Inconsistency detection unit at the start of operation for detecting occurrence of inconsistency between the train position registered by the initial registration unit and presence / absence of each track circuit detection section by the train presence line detection;
An operation start deterring unit for deterring operation start when the inconsistency detection unit at the start of operation is detected;
The train-rail track circuits detection section which detects that there rail by the detection, and misalignment detection means that detect the occurrence of a mismatch does not contain a train position based on the vehicle on the position signal,
When the occurrence of the inconsistency is detected, an entry deterrent control means for performing train control to deter entry into the track circuit detection section detected as being present,
Ground equipment with Receiving terrestrial device on-board position signal from the on-board device of a train traveling on the orbits capable train-rail detected by the track circuits for each track circuit detection sections through the wireless communication, on the basis of the vehicle on the position signal A ground device for a radio train control system that performs train control,
Each of the track circuit detection sections is subdivided into one or more position detection sections,
Train presence / absence determination means for determining the presence / absence of a train in units of the position detection section based on the on-vehicle position signal;
The train-rail track circuits detection section which detects that there rail by the detection, and the train presence you detect the occurrence of inconsistency does not contain a position detection section is determined that the train is present by judging means mismatch detecting means ,
When the occurrence of the inconsistency is detected, an entry deterrent control means for performing train control to deter entry into the track circuit detection section detected as being present,
Ground equipment with The train presence / absence determination means further includes a logic circuit unit for detecting the presence of a train in the position detection section for each position detection section,
The logic circuit section includes: 1) a drop contact that opens when the train position based on the on-board position signal is within the position detection section, and closes when the train position is outside the position detection section; and 2) a position memory relay The storage-holding saddle contact that holds the recovery and the saddle contact that opens when the detection result of the track circuit detection section including the position detection section is on-line and closes when the detection result is absent is connected in parallel A parallel circuit in series with the position memory relay,
The ground device according to claim 2 . An on-board device for a train traveling on a track capable of detecting a train line for each track circuit detection section by a track circuit;
The ground device according to any one of claims 1 to 3, wherein train control is performed based on an on-vehicle position signal received from the on-vehicle device via wireless communication,
A wireless train control system.

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