JP4181720B2 - Train departure prevention device using ATC signal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an erroneous departure prevention apparatus for trains using an ATC signal, and more particularly, to an erroneous departure prevention when a train stopped at a platform turns back from the platform.
[0002]
[Prior art]
In FIG. 2, the rail r of the platform H where the train A stops constitutes the track circuit 1T, and the train A enters the platform H from the track circuit 2T (from the left side in the illustrated example). It is set to come.
[0003]
The ATC transmitter 100 transmits an ATC signal (f1) composed of a carrier wave of a predetermined frequency via the hybrid transformer 101 to the starting end side of the rail r forming the track circuit 1T ( the end side farther from the side where the train enters). ), That is, in the forward direction, the hybrid transformer 102 is disposed on the terminal side of the rail r ( the end side closer to the side where the train enters ). An ATC receiver 103 for receiving the ATC signal (f1) is connected via the ATC.
[0004]
Further, a predetermined ATC signal (f2) indicating a stop of the train A is applied from the ATC transmitter 104 via the hybrid transformer 102 to the terminal side of the rail r, and indicating that the train is stopped. An ATC receiver 105 for receiving the ATC signal (f2) is connected to the start end side of the rail r via the hybrid transformer 101. Therefore, the ATC signal (f2) can be applied in the reverse direction to the rail r. In FIG. 2, SWR1 to SWR3 are contact points of relays driven by a host device that controls the course of train A. In FIG. 2, reference numerals 200 and 200 ′ denote ATC on-board devices (on-board devices in the figure) mounted on the train A.
[0005]
In the above configuration, when the train A is not present in the track circuit 1T, the relay SWR1 operates, the relays SWR2 and SWR3 are restored, and the ATC receiver 103 transmits the ATC signal (the ATC signal transmitted from the ATC transmitter 100). f1) is received to detect that there is no train on the track circuit 1T, and the transmission state of the ATC transmitter 100 is also monitored. When the train A is not present on the track circuit 1T, the ATC signal (f2) transmitted from the ATC transmitter 104 is not applied to the terminal side of the rail r. When the train A is on the track circuit 1T and the rail r forming the track circuit 1T is short-circuited by the axle of the train A, the ATC receiver 103 cannot receive the signal (f1). The presence of a train can be detected on the circuit 1T. The relay SWR1 is restored by this train detection.
[0006]
When the train A enters the track circuit 1T (home H) from the track circuit 2T and stops at the platform H, a stop signal is sent from the ATC transmitter 104 to the ATC onboard device 200 'on the rear side of the train A. Since the ATC signal (f2) is being transmitted, the train A stopped at the home H is prohibited from turning back toward the track circuit 2T while receiving the ATC signal (f2). The Therefore, it is possible to effectively prevent erroneous start due to a leakage signal from another track circuit (track circuit 2T in the illustrated example). In this case as well, the signal (f1) is applied from the ATC transmitter 100 to the start end side of the rail r.
[0007]
When a turn-up operation of the train A stopped at the home H is instructed by a host device (not shown), the relay SWR2 is operated, the relays SWR1 and SWR3 are restored, and the train A from the ATC transmitter 100 is stopped. An ATC signal (f1) is received by the ATC onboard device 200, and a signal (f2) instructing the progress of the train A is received from the ATC transmitter 104 at the ATC onboard device 200 'of the train A. Accordingly, the train A that has received the predetermined ATC signal (f2) indicating the train progress can return from the home H. The operation of the relay SWR3 is performed when a train enters the track circuit 1T from the track circuit 1T 'in the reverse direction.
[0008]
[Problems to be solved by the invention]
However, the conventional train erroneous departure prevention device using the ATC signal has to use different signal frequencies (carrier frequencies) for each train traveling direction, that is, two sets of transceivers are not provided for each train traveling direction. Although train detection was not possible and train detection was not hindered by doing so, train detection was hindered if the signal frequency was not properly used for each direction of train travel. Therefore, the conventional erroneous departure prevention apparatus for trains using the ATC signal has a drawback of requiring two sets of transmitters and receivers (100, 103; 104, 105).
[0009]
Accordingly, the present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide a train erroneous start prevention device that can reduce the number of devices.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a train erroneous departure prevention apparatus using an ATC signal according to the present invention provides (A) a first ATC signal for instructing a train to stop at the head and tail of the train, respectively. When the second ATC signal for instructing the train to travel is received, the ATC on-board device for proceeding the train is provided, and (B) on the ground, (a) the first First transmission means for generating and outputting one ATC signal; (b) second transmission means for generating and outputting the second ATC signal; and (c) receiving the second ATC signal. and receiving means for performing a train detection and, (d) under certain conditions, the progress of a track circuit provided at a predetermined interval the train coming proceeds the first transmission means is stopped train the starting side come the progress that exists from to come train on the far side While selectively connected to a terminating existing on the side closer, alternatively on a side opposite to the side connected to the first transmission means a starting end side and the end side of the track circuit the second transmission means And (e) the trajectory, wherein the receiving means is connected to the start side and the end side of the track circuit and is connected alternatively to the side to which the second transmission means is connected. When the train is not on the circuit, the second ATC signal is applied to the start side of the track circuit, and when the train is on the track circuit, the second ATC signal is applied to the start side of the track circuit. applied to together, the first ATC signal is applied to the terminal end side of the track circuit, the said track circuit the second ATC signal when allowed train folded departure through the track circuit It lies on the side closer to the top part of the folded departing train Is applied with the end side, and a control means for controlling said switch means to apply the first ATC signal the starting end side that exists farther from the head portion of the folded starting train of the track circuit It is characterized in that it comprises Te.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows that the rail r of the platform H on which the train A stops forms a track circuit 1T. The train A enters the platform H from the track circuit 2T (from the left side in the example shown). It is set to do.
[0012]
The transmitter 1 is configured to generate and output a predetermined digital signal (f1) corresponding to the first ATC signal of the present invention. In the illustrated example, the digital signal (f1) is a predetermined signal. 625 channel (625 Hz) signal (hereinafter referred to as “625CH”) obtained by frequency-modulating the above data. Similarly to the transmitter 1, the transmitter 2 is also configured to transmit a digital signal (f2) (corresponding to the second ATC signal of the present invention), and the digital signal (f2). Includes two channels (575CH and 625CH in the illustrated example). In this case, the 625CH signal is used as a signal indicating train stop, and the 575CH and 625CH signals are used as signals indicating train progress permission. The digital signal (f2) is also used for train detection, as will be described later. The channel shown here is an example.
[0013]
In FIG. 1, reference numeral 3 denotes a receiver including a filter circuit so that only a signal of 575CH (f2) can be selectively received among the digital signals transmitted from the transmitter 2.
[0014]
In FIG. 1, SWR1 and SWR2 are relays provided in a host device that constitutes the control means of the present invention for controlling the route of the train, and the contacts of these relays SWR1 and SWR2 are the switch means of the present invention. It is composed . Of these relays SWR1 and SWR2, the contact of the relay SWR1 is applied to the track circuit 1T via switch means constituted by the simulated load DL side or the contact of the hybrid transformer 4 and the relay SWR2 to apply the output of the transmitter 1. It is comprised so that it can connect to the start end side or termination | terminus side of the rail r which forms.
[0015]
Switching means, the start end of the rail r contacts of the relay SWR2 constitute a track circuit 1T the output of the transmitter 1 and transmitter 2, or together are configured to be applied to the end side, of the rail r The start side or the end side can be connected to the receiver 3.
[0016]
Hereinafter, the control operation of the erroneous departure prevention apparatus for trains using the ATC signal having the above configuration will be described. Now, it is assumed that train A is traveling from track circuit 2T toward track circuit 1T (home H). In addition, an ATC on-board device (on-vehicle device in the figure) capable of receiving both the first ATC signal (f1) and the second ATC signal (f2) described above is provided at the head and rear of the train A. ) 10a and 10b are respectively mounted.
[0017]
When the train A is not present in the track circuit 1T, the relay SWR2 is restored (dropped), and the signals (f2) of 575CH and 625CH sent from the transmitter 2 are applied to the start side of the rail r. Yes. That is, the signals (f2) of 575CH and 625CH flow in the forward direction on the rail r. When the train A is not present in the track circuit 1T, the relay SWR1 is operated, and the 625CH signal (f1) sent from the transmitter 1 is sent to the simulated load DL. Of the signal (f2) sent from the transmitter 2, the signal 575CH is received by the receiver 3 via the hybrid transformer 4 from the end of the rail r. When the receiver 3 receives this signal (575CH), it can be detected that there is no train on the track circuit 1T.
[0018]
When the train A enters the track circuit 1T, the rail r forming the track circuit 1T is short-circuited by the axle of the train A, so that the receiver 3 cannot receive the signal of 575CH. It is detected that there is a line.
[0019]
The relay SWR1 is restored (dropped) based on the detection of the presence of the train A in the track circuit 1T, and a 625CH signal (f1) is sent from the transmitter 1 to the terminal side of the rail r. Therefore, while the 625CH signal (f1) is being sent to the terminal end of the rail r, the signal (f1) is received by the ATC on-board device 10b at the tail of the train A located on the track circuit 1T. Thus, it is possible to prevent train A from starting from the track circuit 1T to the track circuit 2T side, that is, in a direction opposite to the direction in which the train has entered .
[0020]
When a turnover departure permission is given from the host device to the train a existing in the track circuit 1T, the relay SWR2 operates, and therefore, the rail r of the 625CH signal (f1) from the transmitter 1 is operated. Application to the terminal end side of the rail r is released, and the signal of 625CH is applied to the starting end side of the rail r. Further, the signals (f2) of 575CH and 625CH are applied from the transmitter 2 to the terminal side of the rail r.
[0021]
By receiving the signals (f2) of 575CH and 625CH indicating the traveling instruction via the ATC onboard device 10b in the rear part , the train A has made a return departure from the track circuit 1T toward the track circuit 2T, that is, It becomes possible. Further, since the ATC on-board device 10a at the head of the train receives the signal (f 1 ) of 625CH from the start end side of the rail r , erroneous departure from the track circuit 1T to the track circuit side on the right side in FIG. 1 is prevented. The
[0022]
When the train i advances from the track circuit 1T to the track circuit 2T side , the receiver 3 receives the signal of 575CH from the starting end side of the rail r, so that the train i advances from the track circuit 1T (home H). Can be detected. After the train A advances from the track circuit 1T, the relays SWR1 and SWR2 can return to the original state and allow the train to enter the track circuit 1T.
[0023]
【The invention's effect】
The train erroneous departure prevention apparatus using the ATC signal according to the present invention is: (A) When the first ATC signal instructing the stop of the train is received at each of the head part and the tail part of the train, the train When the second ATC signal instructing the progress of the train is received, an ATC on-board device that advances the train is provided, (B) on the ground, (a) generating the first ATC signal a first transmission means for outputting Te, (b) second transmitting means for outputting the second ATC signal generated by a, for performing the train detection by receiving (c) the second ATC signal receiving means, (d) under certain conditions, the side away from the train the train coming proceeds the first transmission means come to the progress of a track circuit provided at a predetermined interval to stop at the end side that exists in the side closer to the train in which the starting side come the progress that exists in And the second transmission means is alternatively connected to the start side and the termination side of the track circuit and opposite to the side to which the first transmission means is connected, and the reception means (E) a train is not present in the track circuit ; and (e) the track circuit is alternatively connected to the start side and the end side of the track circuit and to the side opposite to the side to which the second transmission unit is connected. When the second ATC signal is applied to the starting end side of the track circuit, and when a train is on the track circuit, the second ATC signal is applied to the starting end side of the track circuit. The ATC signal is applied to the end of the track circuit, and when the return turn of the train is permitted via the track circuit, the second ATC signal is applied to the head of the return start train of the track circuit. It is applied with the terminal side existing on the side closer Since it and a control means for controlling said switch means to apply the starting end side residing the first ATC signal on the far side from the head portion of the folded starting train of the track circuit, as in the prior art In addition, since the frequency is not properly used according to the traveling direction of the train, train control, train detection, and prevention of erroneous departure at the turn-back station can be realized at low cost by two transmission means and one reception means.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an erroneous departure prevention apparatus for a train using an ATC signal according to an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of a conventional erroneous departure prevention apparatus for trains.
[Explanation of symbols]
1, 2 Track circuit transmitter (transmitter)
3 Track circuit receiver (receiver)
4 Hybrid Transformer H Home SWR1, SWR2 Relay A Train

Claims (1)

When the first ATC signal for instructing the stop of the train is received at the head part and the rear part of the train, respectively, and when the second ATC signal for instructing the progress of the train is received. Equipped with ATC on-board equipment to advance the train,
On the ground,
(A) first transmission means for generating and outputting the first ATC signal;
(B) second transmission means for generating and outputting the second ATC signal;
(C) receiving means for receiving the second ATC signal and performing train detection;
(D) Under a certain condition, a starting side existing on a side far from the traveling train of one track circuit provided in a predetermined section where the train traveling through the first transmission means stops; Alternatively, the second transmission means is connected to the start side and the end side of the track circuit, and the first transmission means is connected to the terminal side existing on the side close to the traveling train. Switch means for selectively connecting the receiving means to the opposite side of the track circuit, and for selectively connecting the receiving means to the start side and the end side of the track circuit and opposite to the side to which the second transmitting means is connected When,
(E) When the train is not on the track circuit, the second ATC signal is applied to the start side of the track circuit, and when the train is on the track circuit, the second ATC signal is applied to the track circuit. The first ATC signal is applied to the starting end side of the track circuit and the first ATC signal is applied to the terminal end side of the track circuit. When the return of the train is permitted via the track circuit, the second ATC signal is applied. Applying to the terminal side of the track circuit close to the head of the train starting from the turn circuit, and the first ATC signal on the side far from the head of the track circuit starting from the return circuit Control means for controlling the switch means to apply to
Train for erroneous departure prevention apparatus characterized in that it comprises a.

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