JP3197913B2 - Train communication control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train communication control system, and more particularly to a train communication control system which can contribute to shortening a train operation interval.

[0002]

2. Description of the Related Art Conventionally, as a conventional train communication control system, as shown in FIG. 3, a rail (track) R is divided into predetermined lengths to form a track circuit A, and a starting point of the track circuit A is formed. A transmitter 1 for transmitting a signal of a predetermined frequency is provided on the side, and a receiver 2 is provided on the terminal side of the track circuit A. Therefore, when there is no train on the track circuit A, a circulating signal current flows between the pair of rails R from the start end to the end as shown in FIG.

As shown in FIG. 3 (b), when a train T1 enters the track circuit A from the terminal side, a pair of rails R are short-circuited by the axle of the train T1, and the train T1 and the train T1 are short-circuited. The signal level of the terminal rail R decreases. Therefore, the receiver 2 can detect that the train T1 is located in the track circuit A from the decrease in the signal level. In the case where the signal transmitted from the transmitter 1 includes control data for the train T1, the train T1
The received signal can be used for train control.

[0004]

However, in the above-mentioned conventional train communication control system, when a signal transmitted from the terminal side of the track circuit is short-circuited on the axle of the train, the terminal side from the axle has no signal. Therefore, the following train cannot enter the track circuit in the no-signal state, and there is a disadvantage that the train cannot be operated at high density. That is, as shown in FIG.
When 1 is entering, there is no signal between the train T1 and the terminal, so that the subsequent train T2 cannot enter the track circuit A. Thus, the interval control of conventional trains, one track circuit as one block section, on one block section is carried out under the principle that not only enter a single train.

[0005] In order to shorten the time interval of a train using such a fixed block section system, it is necessary to shorten the length of the block section. However, when the block section is shortened, the number of track circuits increases by that much, and equipment such as a transmitter and a receiver is required for each track circuit, resulting in a disadvantage that equipment costs increase. For this reason, simply shortening the block section is not a good measure as a means for shortening the time interval.

Accordingly, the present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a train communication system capable of transmitting a signal to a succeeding train and contributing to shortening of a time interval. It is to provide a control method.

[0007]

According to the present invention, there is provided a system for transmitting a train control signal provided on a rail in front of a train in the traveling direction of the train, the vehicle comprising: A signal from the transmitter is received from the rail via a receiving antenna provided on the side and used for controlling the own train, and the received signal is processed for controlling a subsequent train and is opposite to the traveling direction of the train. The signal processor mounted on the train that sends out to the rails via the transmitting antenna provided on the side, and the rails are separated by a predetermined length, and
Between the rails on the transmitter side
After receiving and amplifying and reproducing the signal, send it out to the rail on the other side
And a repeater that performs the operation. Also,
The signal processor receives the signal transmitted from the preceding train to the rail via the receiving antenna provided on the traveling direction of the train and uses it for own train control, and uses the received signal for subsequent train control. processed to through the transmit antenna provided on the side opposite to the traveling direction of the train it is characterized and Turkey be sent <br/> on that rail.

[0008]

In the above arrangement, the transmitter sends a train control signal to the rail. The signal processor mounted on the train receives the signal from the transmitter from the rail via the receiving antenna or the signal sent from the preceding train and uses it to control the own train, and also adds the position information etc. of the own train The processed signal is transmitted to the rail via the transmitting antenna. The repeater provided between the divided rails receives a signal from the rail located on the transmitter side, amplifies and reproduces the signal, increases the output, and transmits the signal to the other rail.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a train communication control system according to one embodiment, and the same components as those in FIG. 3 described above are denoted by the same reference numerals.

The transmitter 1 generates predetermined serial data as well as a known train control transmitter, and converts the generated serial data into an FSK (frequency shift keying) signal corresponding to the serial data using a carrier wave. The signal is modulated and transmitted to the rail R.

Each train (two trains in the illustrated example) T1, T2
Is equipped with a signal processor 10. As shown in FIG. 2, the signal processor 10 includes a receiving antenna 11 provided on the traveling direction side of the trains T1 and T2, an amplifying circuit 12 for amplifying a signal received by the receiving antenna 11 from the rail R, A demodulation circuit 13 for demodulating the amplified signal, and processing of demodulated data, that is, serial data and a pulse signal from a speed generator G provided on the axle W, to control the brakes and the like of the trains T1, T2. A control circuit 14 for outputting a signal, serial data from the demodulation circuit 13 are input, a pulse signal from the speed generator G is input, and the column number data of the own train is input, and a subsequent train (the illustrated example) is used. In the following, a signal generation circuit 15 for generating and processing data necessary for control of T2), a modulation circuit 16 for modulating the generated signal into an FSK signal, and an amplification circuit 1 for amplifying the FSK signal
7 and a transmitting antenna 18 for transmitting the amplified signal to the rail R from the side opposite to the traveling direction of the trains T1 and T2.

The repeater 20 is provided at a position of the rail R where the signal transmitted from the transmitter 1 to the rail R attenuates and cannot be used for train control as it is. That is, the repeater 2
The rail R where 0 is provided is provided with an impedance bond (not shown), and the rail R is divided for an AC signal. A rail R on the transmitter 1 side is connected to a reproduction circuit 21 composed of a filter circuit or the like of the repeater 20, and a reproduced signal is connected to the rail R on the other side via an amplification circuit 22. . Therefore, the present embodiment has a form in which a track circuit (two in the illustrated example, A1 and A2) having a predetermined length is formed with the repeater 20 as a boundary.

Next, the control operation of the embodiment will be described. It is assumed that a predetermined FSK signal for train control is transmitted from the transmitter 1 to the rail R, and two trains T1 and T2 exist in the track circuit A1. Also, for simplicity, there is no preceding train before train T1,
The FSK signal is directly transmitted to the transmitter 1 without passing through the repeater 20.
Is sent from

First, the signal processor 10 mounted on the preceding train T1 receives the F transmitted from the transmitter 1 from the rail R by the receiving antenna 11 as in the conventional train control.
The SK signal is picked up, amplified by an amplifier 12, demodulated by a demodulator 13, and input to a control circuit. Since the control circuit 14 receives inputs from the pulse generator G corresponding to the number of rotations of the axle W, these inputs are subjected to arithmetic processing to obtain the current position of the own train, etc. Control is performed.

Now, the signal processor 10 of the preceding train T1
In addition to functioning as the above-mentioned own train control, a control signal for a train (following train) T2 following the own train T1 is generated and processed and sent to the rail R. That is, the signal generation circuit 15 generates a signal for the succeeding train T2 based on the basic signal output from the transmitter 1 output from the demodulator 13, the column number data of the own train T1, and the pulse signal from the generator G. Generate That is, in the signal generation circuit 15, the subsequent train T2
Add the necessary data which must be controlled in relation to the preceding train T1, such as the preceding train position and the preceding train speed, to the basic data from the transmitter 1. The generated data is transmitted to the rail R via the modulator 16, the amplifier 17, and the transmission antenna 18.

The control circuit 14 of the succeeding train T2 receives signals from the receiving antenna 11, the amplifier 12, the demodulator 13, and the speed generator G and generates control signals for the own train T2 in the same manner as the preceding train T1. The signal generation circuit 1
(5) A signal is transmitted via a modulator 16, an amplifier 17, and an antenna 18 for a train (not shown) further following the own train T2.

The train control of the succeeding train T2 is controlled by a staircase-like or parabolic-like allowable speed pattern stored in the control circuit 14, similarly to the well-known train control. That is, the following train T2 is the train position of the own train T2,
Since the speed and the train position of the preceding train T1 are known, the distance between both trains is known, so that the stop target point of the allowable speed pattern can always be set in consideration of the relationship with the preceding train T1,
It is possible to drive safely. In other words, in the method of the present embodiment, the block section moves due to the relationship between the own train and the preceding train, so that high-density operation of the train becomes possible,
The time interval can be shortened.

The relationship between the preceding train T1 and the following train T2 is similarly performed between the following train T2 and the following train following the following train T2.

The signal transmitted from the transmitter 1 is attenuated while flowing through the rail R. This signal is output up by the repeater 20 and output to the next rail R. Therefore, it is not necessary to install the transmitter 1 for every predetermined length of the rail R, and it is possible to reduce the cost.

According to the method of the present embodiment, the own train is controlled by the signal received from the transmitter 1, and the position data and the like of the own train are added to the basic signal received from the transmitter 1 to generate the train for the succeeding train. Since it was processed and sent to the rail R,
The succeeding train T2 can always grasp the relationship with the preceding train T1. For this reason, the following train T2 is as
, And high-density operation becomes possible, which can contribute to shortening of the time interval.

[0021]

According to the train communication control method according to the present invention , the train control provided on the rail in the forward direction of the train is controlled.
And a transmitter for transmitting signals for
The transmission from the rail via the receiving antenna provided
It is possible to receive signals from the transceiver and use it for own train control.
The received signal is processed for the subsequent train control
Via the transmitting antenna provided on the opposite side to the traveling direction of
A signal processor mounted on the train that sends it to the rail
And the above-mentioned rails are divided for each predetermined length, and the divided
Between the rails, receive the signal from the transmitter side rail.
After amplifying / reproducing, the repeater sends it to the rail on the other side.
, So the following train always knows the relationship with the preceding train
It can be. For this reason, the succeeding train can run as close as possible to the preceding train, and high-density operation can be performed, which can contribute to shortening of the time interval. Also, the repeater
Since the signal is provided, the other signal transmitted from the transmitter can be output and output to the next rail, so that it is not necessary to install the transmitter at every predetermined length of the rail, and the cost can be reduced. In addition, the signal processor is
The signal transmitted to the train
To receive the signal via a communication antenna and use it for own train control.
The received signal is processed for the subsequent train control
Via the transmitting antenna provided on the opposite side to the traveling direction of
If you send it to that rail,
Control your own train using the traffic lights
In addition, the own train further processes it into a signal for the following train.
Can be sent out.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a train communication control system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a signal processor.

FIG. 3 is an explanatory diagram of a conventional block section method.

[Explanation of symbols]

 Reference Signs List 1 transmitter 10 signal processor 11 receiving antenna 18 transmitting antenna 20 repeater R rail T1, T2 train

Claims (2)

(57) [Claims] 1. A transmitter for transmitting a train control signal provided on a rail in front of a train in a traveling direction of the train, and a transmitter from the rail via a receiving antenna provided on a side of the train in a traveling direction of the train. The signal is used for controlling the own train, and the received signal is processed for controlling the subsequent train, and the received signal is transmitted to the rail via the transmitting antenna provided on the side opposite to the traveling direction of the train. The signal processor mounted on the vehicle is separated from the rails by a predetermined length.
Between the separated rails, the signal from the transmitter side rail
After receiving and amplifying / reproducing, send it to the other rail
And a repeater . 2. A signal processor receives a signal transmitted from a preceding train to a rail via a receiving antenna provided on a traveling direction side of the train and uses the signal for controlling the own train. processed to train communication control system according to claim 1 via a transmission antenna provided on the side opposite to the traveling direction of the train, characterized in the Turkey be sent to the rail for subsequent train control.