JP6386699B2 - Ground equipment and train control equipment - Google Patents

Description

  The present invention relates to a train control ground device and a train control device useful for train control in a section in which single-line bidirectional operation is performed.

  For the train control in the single-line bidirectional operation section, for example, as described in Patent Document 1, the transmission device that configures the ground device, from the track circuit section boundary located in front of the train with respect to the train track A train control signal is transmitted, and is received and decoded by an on-board child and an on-board device of the train to perform train control. For train detection, a train detection signal is transmitted from the vicinity of the track circuit section boundary located in front of the train, while a receiver is provided in the vicinity of the track circuit section boundary that is behind the train in the traveling direction. The train is detected by utilizing the fact that the train detection signal cannot be detected by the receiver due to an axle short circuit.

  The train control signal includes a track circuit section identification code (hereinafter referred to as track circuit section ID) assigned to each track circuit section, and the on-board device determines the own train from the track circuit section ID included in the received signal. It is determined which track circuit section is traveling, and the necessary train control is performed on it.

  In the conventional train control device described above, when the traveling direction of the train is reversed, the track circuit section boundary that has been in front as viewed in the train traveling direction becomes the rear track circuit section boundary, The track circuit section boundary that has become the rear becomes the track circuit section boundary in the front. Conventionally, as a countermeasure, change the wiring connection to change the connection position of the transmission device that transmits the train control signal from the track circuit section boundary that was the front to the track circuit section boundary that was the back. Had gone.

  For this reason, there is a problem that wiring is complicated, equipment and wiring work is troublesome, and cost is high.

JP-A-10-157622

  An object of the present invention is to provide a train control ground device and a train control device that can cope with single-line bidirectional operation without requiring a connection change of a transmission device.

In order to solve the above-described problems, the ground device according to the present invention transmits a train control signal to both track circuit sections in the vicinity of the boundary between two adjacent track circuit sections in a single-wire bidirectional non-insulated track circuit section. a transmitting device, a train control signal having a particular frequency for the forward traveling one track circuit section serving as a forward when the train during reverse running of the train, the track circuit section of the other side as the front side from another transmission device provided, supplied by changing the frequency set to the other side track circuit section of the particular frequency.

  As already mentioned, when the train traveling direction is reversed, the track circuit section boundary that has been in front as viewed in the train traveling direction until then becomes the rear track circuit section boundary and is behind. The track circuit section boundary becomes the front track circuit section boundary. In the present invention, the train control signal for one track circuit section set at the time of forward travel in the two adjacent track circuit sections is not changed in response to such a change in the travel direction. Is transmitted from a transmission device provided in another track circuit section that is forward when viewed in the train traveling direction. Thereby, even when the traveling direction of the train is reversed, the train control signal including the track circuit section ID can be supplied from the boundary of the track circuit section that is ahead when viewed in the traveling direction of the train. This change of the train control signal supply point is a software change of the transmission device and does not require a connection change. For this reason, the wiring of the train control system is simplified, and the cost of equipment and wiring work is reduced.

Immediate Chi, transmitting apparatus, the two adjacent track circuit sections, a forward for train control signal for the set one of the track circuit section in the forward travel, in the reverse running, when viewed in the train travel direction A transmission device provided in another track circuit section that is ahead transmits the train control signal for the reverse direction .

  Preferably, for the same track circuit section, the ID information of the track circuit section during forward travel and the ID information of the track circuit section during reverse travel are made different from each other. By doing so, the train control signals corresponding to forward travel and reverse travel can be clearly distinguished from each other by recognizing the difference in ID information, and the reliability of train control can be improved.

  The ground device according to the present invention is combined with an on-vehicle device to constitute a train control device. The on-board device transmits and receives signals to and from the ground device according to the present invention, thereby performing necessary train control.

  As described above, according to the present invention, it is possible to provide a ground device for train control and a train control device that can support single-line bidirectional operation without requiring connection change of the transmission device.

It is a figure which shows the train control system comprised using the ground apparatus which concerns on this invention. In the train control system of FIG. 1, it is a figure which shows the case where a train traveling direction is reverse. It is a figure which shows another form of the ground apparatus which concerns on this invention.

Referring to FIG. 1, track circuit sections 1T to 4T are formed by dividing a pair of left and right rails (rails) 1 with a predetermined length, and track circuit sections 1T to 4T are shown respectively. Section identification information (hereinafter referred to as ID information) ID1 to ID4 is given. The case where the track circuit sections 1T to 4T are non-insulated track circuits whose boundaries are not insulated from each other will be described .

Transmitting devices 31 to 33 and train detection signal receiving devices (hereinafter referred to as TD receiving devices) 41 to 44 are connected to the boundaries of the track circuit sections 1T to 4T via relays 51 to 53, respectively. ing. Transmitting device 31 to 33, (referred to hereinafter as TD signal generator) and the transmitter 313 to 333, the train control signal generator (hereinafter, ATC signal generator hereinafter) 311 to 331, the train detection signal generator 312 to 332.

  The ATC signal generators 311 to 331 generate an AF (Audio Frequency) signal having a frequency specified for each track circuit section 1T to 4T. The AF signal includes ID information ID1 to ID4 of the track circuit sections 1T to 4T together with a train control signal (hereinafter referred to as an ATC signal). In the present invention, the ATC signal generators 311 to 331 have a variable function of changing the frequency of the AF signal by a software method.

TD signal generator 312-332 may train detection signal having a frequency specific for each track circuit section 1T～4T (hereinafter, referred to as TD signal), and supplies the TD signal to the transmitter 313 to 333 .

  The transmitters 313 to 333 amplify and output the ATC signal supplied from the ATC signal generators 311 to 331 and the TD signal supplied from the TD signal generators 312 to 332, for example. However, the transmitters 313 to 333 may be provided individually corresponding to the ATC signal and the TD signal, respectively.

  The transmission devices 31 to 33 supply the ATC signal and the TD signal to the track circuit sections 1T to 4T via the repeaters 51 to 53, respectively, and the TD reception devices 41 to 44 have the track circuit sections 1T to 4T and The TD signal input via the repeaters 51 to 53 is received, and the presence / absence of the train 2 is detected.

  Now, assuming that the train travels along the rail in the direction indicated by the arrow F1, the travel direction F1 is defined as the forward direction, and the train enters the track circuit section 2T. In this state, the TD signal TD2 supplied from the TD signal generator 322 to the track circuit section 2T via the transmitter 323 and the repeater 52 cannot be received by the TD signal receiver 42 due to an axle short circuit of the train 2. . Accordingly, it is detected that the train 2 is on the track circuit section 2T.

  On the other hand, the ATC signal ATC2 supplied to the track circuit section 2T from the ATC signal generation device 321 provided in the transmission device 32 via the transmitter 323 and the repeater 52 is converted into an on-board device ( (Not shown). The on-board device decodes the ATC signal ATC2 and performs necessary train control.

  Although the description is omitted, similar train detection and train control are executed in the other track circuit sections 1T, 3T, and 4T.

  In the single-line bidirectional operation, when the train 2 travels in the direction opposite to the forward direction F1, in two adjacent track circuit sections (1T and 2T), (2T and 3T), and (3T and 4T), FIG. The train control signal for one track circuit section set at the time of traveling in the forward direction F1 is output from a transmitter provided in another track circuit section that is ahead when viewed in the train traveling direction (reverse direction). . This point will be described with reference to FIG.

  For example, regarding the adjacent track circuit section 1T and the track circuit section 2T, in the adjacent track circuit sections 1T and 2T, the ATC signal ATC2 set in the track circuit section 2T that is forward when traveling in the forward direction F1, The output from the transmission device 31 provided for the track circuit section 1T that is forward when viewed in the direction of travel in the reverse direction R1. That is, the ATC signal transmitted from the ATC signal generation device 311 of the transmission device 31 is changed from the ATC signal ATC1 when traveling in the forward direction F1 to the ATC signal ATC2. This change can be achieved by changing the AF signal frequency transmitted from the ATC signal generator 311 in software.

  The same operation is executed in the other two adjacent track circuit sections (2T and 3T) and (3T and 4T). In the case of FIG. 2, there is no change in the train detection system.

  As described above, in the present invention, for example, two adjacent track circuit sections (1T and 2T) are not changed by the software processing of the transmission devices 31 to 33, instead of changing the connection position in response to the change in the traveling direction. ), The ATC signal ATC2 for the track circuit section 2T that is forward when traveling in the forward direction F1 is the track circuit section 1T that is forward when viewed in the train traveling direction R1 when traveling in the reverse direction R1. Is output from the ATC signal generator 311 included in Thereby, even when the traveling direction of the train 2 is the reverse direction R1 opposite to the forward direction F1 (FIG. 1), the ATC signal ATC2 to be given to the track circuit section 2T is expressed in the traveling direction R1 of the train 2. As seen, the track circuit section 1T can be supplied to the track circuit section 2T from the boundary of the track circuit section 1T-2T. This ATC signal supply point change is a software change of the AF frequency of the ATC signal generator 311 included in the transmitter 31 and does not require a connection change. For this reason, the wiring of the train control system is simplified, and the cost of equipment and wiring work is reduced.

  Preferably, for the same track circuit section, the track circuit section ID during forward travel and the track circuit section ID during reverse travel are made different from each other. For example, when traveling in the forward direction F1, the ID information ID1 to ID4 set for the track circuit sections 1T to 4T is changed to ID information ID11 to ID14 when traveling in the reverse direction R1. is there. By doing so, the train control signals corresponding to traveling in the forward direction F1 and the reverse direction R1 are clearly distinguished from each other by recognizing the difference between the ID information ID1 to ID2 and the ID information ID11 to ID14, and train control is performed. Reliability can be improved.

  The above concept adopted in the train control system can also be applied to the train detection system. This point will be described with reference to FIG. In FIG. 3, among the transmission devices 31 to 33, the TD signal generation devices 312, 322, and 332 constituting the train detection system include two adjacent track circuit sections (1T and 2T), (2T and 3T), and (3T And 4T), when the vehicle travels in the forward direction F1, the train detection signal for one track circuit section that is forward is another track circuit that is forward when viewed in the train travel direction R1 when traveling in the reverse direction R1. Output from the TD signal generator provided in the section.

  For example, in the adjacent track circuit section 1T and track circuit section 2T, the TD signal TD2 for the track circuit section 2T that is forward when traveling in the forward direction F1 is used in the train traveling direction R1 when traveling in the reverse direction R1. It is transmitted from the TD signal generator 312 provided in the track circuit section 1T that is in front as viewed. As a result, even when the train 2 travels in the reverse direction R1, the TD signal receiving device 42 connected to the boundary between the track circuit section 2T and the track circuit section 3T can detect the approach of the train to the track circuit section 2T. it can.

  Although the contents of the present invention have been specifically described above with reference to the preferred embodiments, it is obvious that those skilled in the art can take various modifications based on the basic technical idea and teachings of the present invention. It is.

DESCRIPTION OF SYMBOLS 1 Rail 2 Train 31-34 Transmitter 311,321,331 ATC signal generator 312,322,332 TD signal generator 313,323,333 Transmitter 41-44 TD signal receiver

Claims (3)

In the non-insulated track circuit section for single line bidirectional, comprising a transmitter for transmitting a train control signal to both track circuit sections near the boundary between two adjacent track circuit sections,
The train control signal having a particular frequency for the train forward during running on one track circuit section serving as a front, in the reverse running of the train, provided in the track circuit section of the other side as the front side from another transmission apparatus, and supplies to change the other side frequency set in the track circuit section of said particular frequency, the ground system. A ground apparatus according to claim 1, used in combination with the single wire bidirectional for free insulating track circuit section, for the same of the track circuit section, a track circuit section number ID at the time of the forward travel , and the track circuit section number ID at the time of the reverse travel, different from each other, the ground system. A train control device including a ground device and an on-vehicle device,
The ground apparatus is the one described in claim 1 or 2,
The on-board device is a train control device that exchanges signals with the ground device.

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