JP3761655B2 - Automatic train control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic train control apparatus that performs train detection using an uninsulated track circuit and that can transmit a train control signal to a train using the uninsulated track circuit.
[0002]
[Prior art]
Conventionally, in order to perform the train detection utilizing a non-insulated track circuit, that the non-insulated track circuit a section formed a rail constituting by dividing the longitudinal direction (hereinafter, including the rail "track circuit" In some cases, a transmitter for transmitting a train detection signal to the rail is provided at an intermediate point of the rail, and a receiver for receiving a train detection signal from the rail is provided at both ends of the section . (For example, “Signal”, 17th edition, page 732 issued on July 20, 1991 by Kotomo Co., Ltd.)
[0003]
In the above structure, when the train on the orbit circuit is not rail, because the track circuit (between the rails) is not short-circuited by the train axle (wheel), the receiver signal train detection from the transmitter Can be received. When receiving the train detection signal of that, since the train detection relay provided in the receiver (orbital relay) is jacked (ON), the train for orbital circuit of that based on this No signal is output.
[0004]
On the other hand, when the train on the orbit circuit to rail, the trajectory circuit is short-circuited by the train axles Runode, train detection signal from the transmit unit is not received by the receiver. Therefore, since the train detection relay provided in the receiver falls (OFF), the train presence signal is output for orbital circuit of that based on this.
[0005]
Also, the train control signal from the ground with respect to the train on trajectory circuit (hereinafter, referred to as "ATC signal") to delivering is the end on the side of train track circuit moves forward, the transmission for transmitting the ATC signal (For example, the above-mentioned “Signal”, page 733).
[0006]
In the above structure, when the train is rail on orbit circuit can capture the ATC signal that is sent to the track circuit to the on-board equipment is received by on-board coil. Therefore, various train controls such as train speed control can be performed on the vehicle using the received ATC signal.
[0007]
[Problems to be solved by the invention]
However, in the above-mentioned conventional automatic train control, to perform the transmission of train detection signal and train control signal, transmitter and receiver of the train detection signal for each orbit circuit and trains transmitter control signal the must be provided, there is a drawback that the equipment costly.
[0008]
Accordingly, the present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide an automatic train control apparatus capable of reducing the equipment cost.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the automatic train control device according to the present invention includes the following means for a section formed by dividing the rails constituting the non-insulated track circuit in the longitudinal direction. It is characterized by. That is, a first signal sending means for sending a train detection signal to the rail of the section, a second signal sending means for sending a train control signal for a train traveling on the rail of the section to the rail of the section, First receiving means capable of receiving both a train detection signal and a train control signal from the rail at the train entrance end of the section, and the train from the rail at the train advance end of the section A second receiving means capable of receiving both a detection signal and a train control signal; and when the first receiving means is receiving a train detection signal or a train control signal, a signal is sent to the rail. When the transmission source to be transmitted is set to the first signal transmission means, and the first reception means receives neither the train detection signal nor the train control signal, the transmission source that transmits the signal to the rail is set to the first signal transmission means. 1 signal transmission First switching means for switching from the means to the second signal sending means, and when the second receiving means receives a train detection signal or a train control signal, the sending source set by the first switching means When the second receiving means receives neither the train detection signal nor the train control signal, the connection destination to the rail is set by the first switching means. A second switching means for switching the connection destination of the transmission source to the rail from the rail at the midpoint of the section to the rail at the end of the train in the section; and the second receiving means is used for a train detection signal or train control When receiving a signal, the receiving source from the rail of the second receiving means is set to the rail at the end of the section on the train advance side, and the second receiving means detects the train detection signal and the train control. For signal Deviation when no received is a third switching means for switching a reception source from the rail of the second receiving means from the rail end of the train advancing side of the section rail of the midpoint of the interval.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of an automatic train control device according to an embodiment.
In the figure, TA and TB denote each end of the track circuit from the intermediate point when the track circuit formed by dividing the rail r constituting the non-insulated track circuit into a predetermined length is divided into two at the intermediate point. This is a track circuit including a range up to a part. For convenience of explanation, the rail that forms the track circuit TA is referred to as a first rail r 1, and the rail that forms the track circuit TB is referred to as a second rail r 2 .
[0011]
Reference numeral 1 denotes a TD signal generator that generates a train detection signal (hereinafter referred to as a “TD signal”), and corresponds to a first signal transmission means that is one of the components of the present invention. Reference numeral 2 denotes an ATC signal generator that generates a train control signal (hereinafter referred to as “ATC signal”), and corresponds to a second signal transmission means that is one of the components of the present invention.
TD signal generator 1, similar to the TD signal generator for generating a TD signal used in a known trajectory circuits, (in the example of FIG. 1, T ', T ") other track circuit TD signal used in and generating a TD signal having a constant frequency at which selected to be sufficiently distinguished.
[0012]
ATC signal generator 2 is constructed similarly to the well-known ATC signal generator for sending A TC signal from the ground side to the upper car. Therefore, the ATC signal generator 2 outputs an ATC signal obtained by modulating a predetermined carrier wave with, for example, forward train information.
[0013]
Reference numeral 3A denotes a receiver for the track circuit TA (hereinafter referred to as a “TA receiver”), which is connected so as to receive a signal from the rail at the train approach side end of the track circuit TA. Reference numeral 3B denotes a receiver for the track circuit TB (hereinafter referred to as “TB receiver”) . The TA receiver 3A and the TB receiver 3B correspond to a first receiving means and a second receiving means, respectively, which are one of the components of the present invention.
[0014]
Although not shown, the TA receiver 3A and the TB receiver 3B are a switch circuit that operates in synchronism with a switch circuit S1, which will be described later. A band-pass filter that passes the ATC signal from the device 2 and an amplifier circuit are included. Accordingly, the receivers 3A and 3B can receive the TD signal when the switch circuit S1 is connected to the TD signal generator 1, and when the switch circuit S1 is connected to the ATC signal generator 2. ATC signal can be received.
[0015]
Further, receiver device 3A, 3B, when receiving the TD signals from TD signal generator 1, or the ATC signal from the ATC signal generator 2 when receiving, respectively connected these two receivers 3A, and 3B The train detection relays (track relays) TAR and TBR are turned ON, and when neither the TD signal nor the ATC signal is received, the train detection relays TAR and TBR are turned OFF.
[0016]
The TD signal generator 1 and the ATC signal generator 2 are connected to a switch circuit S 1 corresponding to first switching means that is one of the components of the present invention . The switch circuits S 1, switching circuit S2 corresponding to the second switching means which is one of the transmitters A and components of the present invention for amplifying processes the TD signal or ATC signal is continued series contact.
The switch circuit S1 is for setting a transmission source for sending a signal to the rail r to one or the other of the TD signal generator 1 and the ATC signal generator 2, and is operated by the TA receiver 3A. It consists of the contact of the detection relay TAR . When the TA receiver 3A receives the TD signal or the ATC signal, the transmission source for sending the signal to the rail r is set to the TD signal generator 1, and the TA receiver 3A sets the TD signal and the ATC signal. When neither is received, an operation of switching the transmission source for transmitting a signal to the rail from the TD signal generator 1 to the ATC signal generator 2 is performed.
[0017]
The switch circuit S2 is composed of contact of the train detection relay TBR operated by the reception state of the TB receiver 3B. When the TB receiver 3B is receiving TD signal or ATC signal sets the connection destination for the sender of the rail r set by the switch circuits S 1 to the rail of the intermediate point P 0 of the section, when TB receiver 3B has not received any of the TD signal and ATC signal, side exits column KurumaSusumu the track circuit from the rail of the intermediate point P 0 of the destination for the set sender rail r by the switch circuits S 1 to work by sea urchin switch to end P B of the rail.
[0018]
The TD signal generator 1, the ATC signal generator 2, and the switch circuit S1 are individually shown, but these are made into blocks to facilitate the explanation of the operation of the present invention. 2, the shared transmitter 10 is configured to transmit a TD signal and an ATC signal. More specifically, the shared transmitter 10 always sends out a TD signal, and when the train detection relay TAR is dropped, that is, when the switch circuit S1 is connected to the ATC signal generator 2 side, the TD signal is transmitted. Instead of the signal, the ATC signal can be sent to the intermediate point P0 or the end position PB.
[0019]
Moreover, TB receiver 3B is connected to the rail r through the switching circuit S 3 corresponding to the third switching means which is one of the components of the present invention. The switch circuit S3 is composed of a contact point of a train detection relay TBR operated according to the reception state of the TB receiver 3B, and switches the reception source from the rail of the TB receiver 3B. That is, when the T B receiver 3B is receiving TD signal or ATC signal, the received source from the rails of TB receiver 3B is set to the rail end P B of the train advancing side of the track circuit, TB when the receiver 3B has not received any of the TD signal and ATC signal, the received source from the rails of TB receiver 3B from the rail end P B of the train advancing side of the track circuit of the track circuit midpoint P 0 Switch to the rail.
[0020]
Orbit circuit TA, track circuit T which are respectively provided on both sides of the train entering side and the train advancing side of the TB ', T "has been omitted in FIG. 1, both track circuits TA described above, similarly to the TB Therefore, the T ′ receiver 4T ′ of the track circuit T ′ is configured in the same manner as the TB receiver 3B of the track circuit TB, and the T ″ receiver 5T ″ of the track circuit T ″ is the track. The circuit TA is configured in the same manner as the TA receiver 3A.
[0021]
In FIG. 1, the TD signal generator 1 and the ATC signal generator 2 are installed at the intermediate point P0, and the TA receiver 3A and TB receiver 3B are installed at the end positions PA and PB, respectively. This is for ease of understanding, and in fact, these devices include other track circuits, i.e. track circuits TA, TB, T ′, T ″. It will be installed in the equipment room (not shown).
[0022]
Next, the control operation will be described with reference to FIGS. 1 and 3 to 5. First, as shown in FIG. 1, a description will be given from a state in which no train is present on the track circuits TA and TB.
[0023]
Track circuit TA, in any of TB (i.e., the first in any of the rails r 1 and second rail r 2) when the train is not present, TA receivers 3A and TB receiver 3B are both train detection relay TAR receives the TD signal, since TBR is oN the switch circuits S1, S2 is connected to TD signal generator 1 to an intermediate point P0, also the switch circuit S 3 is TB receiver 3B is connected to the position P B at the end of the track circuit . Furthermore, TA receiver 3A, TB receiver 3 B is the train detection relay TAR receives a T D signal, since TBR is set to ON, respectively, track circuits TA, the train no signal is output for TB.
[0024]
As shown in FIG. 3, when the train A enters the track circuit TA (the first rail r 1 ) , the TA receiver 3A receives the TD signal that has been received so far on the axle of the train A. It is short-circuited and cannot be received, thereby turning off the train detection relay TAR. Thus, with the track circuit TA train chromatic ricin No. is output.
[0025]
When the train detection relay TAR is turned off, the contact of the switch circuit S1 is switched from the TD signal generator 1 side to the ATC signal generator 2 side, whereby the ATC signal is output to the track circuits TA and TB. Therefore, the train A on the track circuit TA can take in the ATC signal via a vehicle upper not shown, and can perform predetermined train control such as train speed control based on the ATC signal. .
[0026]
On the other hand, the TB receiver 3B receives the ATC signal instead of the TD signal that has been received. Therefore, since the train detection relay TBR is kept ON, the contact of the switch circuit S 2 and the contact of the switch circuit S 3 are maintained, so that the ATC signal is sent from the intermediate point P 0 to the rail. In addition, since the train detection relay TBR is kept ON, a no-train signal is output for the track circuit TB.
[0027]
As shown in FIG. 4, when the train A crosses the intermediate point P0 and enters the track circuit TB (second rail r 2 thereof ) , the ATC signal that has been received by the TB receiver 3B until the train A can not be received by the short-circuit of the axle, the train detection relay TBR is OFF and a Runode, by this, the train presence signal is output for the track circuit TB.
[0028]
Further, when the train detection relay TBR is turned off, the contacts of the switch circuits S2 and S3 are switched. Thus, since the destination for the rail of the ATC signal from the ATC signal generator 2 is switched et al is from the midpoint P0 to position PB of the end of the train advancing side of the track circuit, ATC signal train Lee on the track circuit TB Is supplied.
[0029]
FIG. 5 shows a state where the train A has advanced from the track circuit TB (the second rail r 2 ) to the track circuit T ″ ahead. That is, if the train A no longer exists on the track circuit TB, since TA receiver 3A and TB receiver 3B will be able to receive the ATC signal together train detection relay TAR, TBR is ing to oN at the same time. Thus, the contacts of the switch circuits S2, S3, the original state, That is, the signal transmission source connected to the rail is switched from the ATC signal generator 2 to the TD signal generator 1, and the original state is obtained. A TD signal is transmitted from 0 .
[0030]
As described above, since the train control device according to the present embodiment can also detect a train using an ATC signal, the number of devices provided for each track circuit can be reduced, and the equipment cost can be reduced. In addition, train detection can be performed separately for the section from the train entry side end of the track circuit to the intermediate point and the section from the intermediate point to the train advancement end of the track circuit.
[0031]
【The invention's effect】
The automatic train control device according to the present invention is a first signal sending means for sending a train detection signal to a rail in a section formed by dividing the rail constituting the non-insulated track circuit in the longitudinal direction. Second signal sending means for sending a train control signal for a train traveling on the rail of the section to the rail of the section, and a train detection signal and train control from the rail at the train entrance side end of the section First receiving means capable of receiving both signals for the train, and second receiving means capable of receiving both the train detection signal and the train control signal from the rail at the train advancing side end of the section; When the first receiving means is receiving a train detection signal or a train control signal, a sending source for sending a signal to the rail is set to the first signal sending means, and the first receiving means Train detection signal When none of the train control signals is received, the first switching means for switching the sending source for sending a signal to the rail from the first signal sending means to the second signal sending means, and the second receiving means is a train When receiving a signal for detection or a signal for train control, the connection destination for the rail of the transmission source set by the first switching means is set to the rail of the intermediate point of the section, and the second receiving means When neither the train detection signal nor the train control signal is received, the connection destination for the transmission source rail set by the first switching means is changed from the middle rail of the section to the train advance side of the section. When the second switching means for switching to the end rail and the second receiving means are receiving a train detection signal or a train control signal, the reception source from the rail of the second receiving means is Set rail train advancing end between when said second reception means does not receive any of the train detection signal and train control signal, a reception source from the rails of the second receiver means since constructed and a third switching means for switching from the rail train advancing side end of the section rail of the midpoint of the interval, it is possible to reduce the number of devices provided for each track circuit, it is possible to reduce equipment cost In addition, the ATC signal can be transmitted effectively.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing an example of a shared transmitter for a TD signal and an ATC signal.
FIG. 3 is an explanatory diagram showing a signal flow corresponding to a train position.
FIG. 4 is an explanatory diagram showing a signal flow corresponding to a train position.
FIG. 5 is an explanatory diagram showing a signal flow corresponding to a train position.
[Explanation of symbols]
1 TD signal generator 2 ATC signal generator 3A TA receiver 3B TB receiver S1-S3 switch circuit TAR, TBR Train detection relay TA, TB track circuit r rail

Claims (1)

For the section formed by dividing the rail constituting the non-insulated track circuit in the longitudinal direction,
First signal sending means for sending a train detection signal to the rail in the section;
Second signal sending means for sending a train control signal for a train traveling on the rail of the section to the rail of the section;
A first receiving means capable of receiving both a train detection signal and a train control signal from the rail at the end of the section on the train entry side;
A second receiving means capable of receiving both a train detection signal and a train control signal from the rail at the train advancing side end of the section;
When the first receiving means is receiving a train detection signal or a train control signal, a sending source for sending a signal to the rail is set to the first signal sending means, and the first receiving means is a train When neither the detection signal nor the train control signal is received, the first switching means for switching the sending source for sending the signal to the rail from the first signal sending means to the second signal sending means;
When the second receiving means is receiving a train detection signal or a train control signal, the connection destination for the rail of the transmission source set by the first switching means is set to the middle rail of the section And when the second receiving means receives neither the train detection signal nor the train control signal, the connection destination for the rail of the transmission source set by the first switching means is the rail of the intermediate point of the section. Second switching means for switching to the rail at the end of the section from the train advance side,
When the second receiving means is receiving a train detection signal or a train control signal, the receiving source from the rail of the second receiving means is set to the rail at the end of the section on the train advance side. When the second receiving means receives neither a train detection signal nor a train control signal, the receiving source from the rail of the second receiving means is taken from the end rail on the train advance side of the section. A third switching means for switching to the middle rail of the section;
Automatic train control system characterized in that it comprises a.

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