JP3645199B2 - Method for controlling ground unit for automatic train stop device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a method for controlling a ground unit for an automatic train stop device, more specifically, when a second automatic train stop device is newly added to a railway line where the first automatic train stop device is already installed. The present invention relates to a method that enables sharing of a control line of a device.
[0002]
[Prior art]
In general, in each major JR railway line nationwide, as shown in Fig. 4, an automatic train stop device (ATS-S type: when the train approaches a certain distance before the traffic signal indicating the stoppage, the driver operates the brakes. If you forget, a device that automatically operates the brake) is installed, but in the specific line section, as shown in FIG. 5, a new type automatic train stop device (ATS-P type: in-vehicle driver, A device that conveys caution and stop information, detects the speed of the train, and automatically brakes below the allowable speed when the caution or stop information is received. Between the ground unit and the signal display condition control device in the signal equipment box Data transmission in the modem) or an automatic train stop device (ATS-P (N): improved on the new ATS-P type as shown in FIG. 6) The data transmission between Instead of a modulation / demodulation system based on the system, a relay logic circuit system that performs three operations: forward, reverse, and no current in accordance with three types of signal display information (progress, caution, and stop)) Is going to be installed.
[0003]
By the way, when an ATS-P (N) type is additionally installed by superimposing an automatic train stopping device on the ATS-S type, the conventional ATS-S type control line (2 The ATS-P (N) type control line (consisting of a multi-core control signal cable) was newly established. In other words, in order to operate both the ATS-S type ground unit and the ATS-P (N) type ground unit, another cost other than the installation of the ground unit, that is, the installation of the control line for the ATS-P (N) type is further required. Came.
[0004]
[Problems to be solved by the invention]
Therefore, the present invention solves the conventional problems as described above, and the second automatic train stop device (ATS-P) is installed in the railway line where the first automatic train stop device (ATS-S type) is already installed. (N) type) is newly added and the existing ATS-S type control line is diverted to enable control of the newly installed ATS-P (N) type ground element. Type automatic control line and ATS-P (N) type control line can be shared, and the cost required for laying the ATS-P (N) type control line can be reduced. An object of the present invention is to provide a control method for a ground unit.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a first automatic train stop when a second automatic train stop device is newly added to a railway line area where the first automatic train stop device is already installed. A two-core control signal cable connected to the ground element of the second automatic train stop device is connected to a control line composed of a two-core control signal cable connecting the ground element of the device and the signal display condition control device. A diode bridge circuit is provided on the control line on the ground element side of the first automatic train stop device from the connected position, and the direction of the signal current flowing from the signal display condition control device is either forward or reverse by the diode bridge circuit. to control such as even when the direction does not change the direction of the current flowing through the ground coil control relay of the first automatic train stop with ground unit control relay instantaneous recovery does not occur And butterflies.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a system in a state where a second automatic train stop device (ATS-P (N) type) is added to a railway line area where a first automatic train stop device (ATS-S type) is already installed. It is a block diagram.
[0007]
In FIG. 1, reference numeral 1 denotes a railway line composed of a pair of rails 2 in which an ATS-S type and an ATS-P (N) type are installed, and the ATS-S type ground element 3 (with built-in control relay QR) And ATS-P (N) type ground elements 5a, 5b, 5c are sequentially installed along the train traveling direction. The ATS-S type ground element 3 is connected to a diverting circuit 8 of a signal display condition control device 7 housed in an instrument box 6 beside the track via a control line 10 including a two-core control signal cable. The ATS-P (N) type ground element 5a is used for progress indication, the ATS-P (N) type ground element 5b is used for warning indication, and the ATS-P (N) type ground element 5c is used for stop indication. Is done. Two-core control signal cables 12a, 12b, 12c connected to these ATS-P (N) type ground elements 5a, 5b, 5c are connected to the control line 10, respectively. In the figure, a dotted line indicates a control line composed of an ATS-P (N) type multi-core control signal cable which is not required in comparison with the conventional one shown in FIG. Thus, the ATS-P (N) type control line is completely unnecessary.
[0008]
A diode bridge circuit 15 is installed in the control line 10 on the ATS-S type ground element 3 side from the position where the signal cable 12a is connected. The diode bridge circuit 15 includes diodes D1 to D4 as shown in FIG.
[0009]
Control for the ATS-P (N) type ground elements 5a, 5b, 5c is as follows. At the time of progress display, the direction of the signal current flowing from the signal display condition control device 7 is set to the positive direction (a) as shown in FIG. Thereby, a current flows in the direction of the reversal circuit 8 (+) → the diode D7 → the control relay R1 (+) → the control relay R1 (−) → the reversal circuit 8 (−). On the other hand, the direction of the signal current is changed to the reverse direction (b) by the reversing circuit 8 at the time of the caution display. As a result, current flows in the direction of the reversal circuit 8 (−) → control relay R2 (+) → control relay R2 (−) → diode D8 → polarization circuit 8 (+). In this way, when the current flow is in the forward direction (a), the control relay R1 operates, and the progress indication information is given from the ground unit 5a to the ATS-P (N) type on-board device, and the reverse direction (b ), The control relay R2 is operated, and caution display information is given from the ground element 5b to the ATS-P (N) type on-board device.
[0010]
Since the signal current does not flow at the time of the stop display, the control relays R1 and R2 are restored, and stop information is given from the ground unit 5c to the ATS-P (N) type on-board device. In FIG. 2, only the ATS-P (N) type ground element 5a has been shown and described, but the ground elements 5b and 5c are the same, and there is no difference in the control. As described above, each ground element 5a, 5b, 5c gives a progress indication, a caution indication, and a stop indication.
[0011]
The control for the ATS-S type ground unit 3 is as follows. The direction of the signal current flowing from the signal display condition control device 7 other than the stop display is the positive direction (a) (progress display) in the dipole circuit 8 to the diode bridge circuit 15 as shown in FIG. Or in the reverse direction (b) (at the time of caution), the diode D1, D2, D3, and D4 are always in the same direction from the diode bridge circuit 15 to the control relay QR. By maintaining the current flow in the same direction in this way, the control relay QR operates, and the progress display information or the caution display information is given from the ground unit 3 to the ATS-S type on-board device.
[0012]
Since the signal current does not flow during the stop display, the control relay QR is restored, and stop information is given from the ground unit 3 to the ATS-S type on-board device.
[0013]
Therefore, since the direction of the current flowing through the control relay QR does not change regardless of whether the direction of the signal current flowing from the signal display condition control device 7 is positive or negative, the control relay QR is changed as shown in FIG. 3 when the direction of the current is changed. (No instantaneous recovery occurs).
[0014]
If the ATS-S type control line and the ATS-P (N) type control line are shared without providing the reversing circuit 8 and the diode bridge circuit 15 as described above, the signal indication is a caution indication. When changing from the progress display to the progress display, and from the progress display to the caution display, a magnetic field is formed in the direction before the current direction is changed, as shown by the chain line in FIG. A magnetic field is formed. During this time, the suction force to the movable iron piece of the coil of the control relay QR does not work, and it is temporarily recovered. Therefore, if the ATS-S type ground unit 3 and the ATS-S type on-board device are combined when the control relay QR is once restored, stop information is given regardless of whether the traffic signal is a warning indication or a progress indication. However, in this embodiment, this inconvenience can be avoided.
[0015]
【The invention's effect】
The present invention is as described above, and when the second automatic train stop device is newly added to the railway line area where the first automatic train stop device is already installed, the first automatic train stop device The signal cable for two-core control connected to the ground element of the second automatic train stop device is connected to the control line composed of the signal cable for two-core control that connects the ground element and the signal display condition control device, and this signal cable is connected. A diode bridge circuit is provided on the control line on the ground element side of the first automatic train stop device from the above position, and the direction of the signal current flowing from the signal display condition control device by this diode bridge circuit is either forward or reverse. and controls so that at a first so as not to change the direction of the current flowing through the ground coil control relay instantaneous restoration of ground coils control relay of an automatic train stop device does not occur even when, and existing The control line of the first automatic train stop device can be diverted to enable control of the ground unit of the second automatic train stop device to be newly installed, and the control line of both devices can be shared, There is an excellent effect that the cost required for laying the control line of the second automatic train stop device can be reduced.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram showing an embodiment of the present invention in a state in which an ATS-P (N) type is added to a railway line area where an ATS-S type is already installed.
FIG. 2 is a drawing for explaining operation.
FIG. 3 is a time chart showing the operation of the control relay.
FIG. 4 is a system configuration diagram of a railway line section where an ATS-S type is already installed.
FIG. 5 is a system configuration diagram of a railway line area where an ATS-P type is already installed.
FIG. 6 is a system configuration diagram of a railway line section where an ATS-P (N) type is already installed.
FIG. 7 is a conventional system configuration diagram in a state where an ATS-P (N) type is newly added to a railway line area where an ATS-S type is already installed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Railroad line 2 Rail 3 ATS-S type ground element 5a, 5b, 5c ATS-P (N) type ground element 6 Instrument box 7 Signal display condition control apparatus 8 Polarization circuit
10 Control line
12a, 12b, 12c Control signal cable
15 Diode bridge circuit

Claims (1)

When the second automatic train stop device is added and newly installed in the railway line where the first automatic train stop device is already installed, the ground element of the first automatic train stop device and the signal display condition control device are A two-core control signal cable connected to the ground element of the second automatic train stop device is connected to a control line composed of a two-core control signal cable to be connected, and the first automatic train stop device is connected from the position where the signal cable is connected. A diode bridge circuit is provided on the control line on the ground element side of the first automatic train regardless of whether the direction of the signal current flowing from the signal display condition control device is normal or reverse. control of ground coils for automatic train stop, characterized in that the instantaneous restoration of ground coil control relay so as not to change the direction of the current flowing through the ground coil control relay stopping device is controlled not to occur Method.

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