JP2000247232A - Train controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transmit both train position detecting (TD) and train controlling (ATC) signals in a simple structure. SOLUTION: This train controller is comprised of a TD signal impressing means impressing a plurality of TD signals generated at regular intervals and periodic time series to each of track circuits, a detecting means generating these signals received from those of individual track circuits in time series conformed to the time series of the TD signals, and detecting a train position by a fact of whether a received signal conforming to which TD signal is missing or not, and an ATC signal impressing means to be impressed to the track circuit wherein the train position is detected by inserting the ATC signal in place of the TD signal corresponding to the track circuit where the train position is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train control apparatus for detecting a train position using a track circuit and transmitting a predetermined train control signal to the train whose train position is detected. About.

[0002]

2. Description of the Related Art The present applicant has previously filed Japanese Patent Application No. 9-2819.
In No. 36, a plurality of train detection signals (hereinafter, referred to as “TD signals”) having different frequencies corresponding to a plurality of track circuits are generated in a periodic time series, and applied to the starting end of each track circuit. In addition, a train position detecting device that detects a train position by receiving a reception signal from a terminal side of each track circuit has been proposed.

[0003] The train position detecting device according to the present proposal comprises a switch for applying a transmission signal to a track circuit and a switch for receiving a signal from the track circuit. Since the scanning must be performed for each track circuit while interlocking the devices, the disadvantage that the circuit configuration becomes complicated can be solved.

Further, the train position detecting device according to the above proposal is a conventional scanning type train position detecting device.
A check circuit for constantly checking the soundness of the switch for applying the transmission signal and the switch for receiving the reception signal is required. However, such a check circuit is not required, and the TD signal is not required. There is no need to perform train detection based on the check between the control signal and the check signal, so that the circuit configuration can be simplified.

[0005]

However, the train position detecting device according to the above proposal has disclosed that a train control signal (hereinafter, referred to as an "ATC signal") is transmitted to a detected train. Therefore, it has been desired to be able to easily transmit an ATC signal to a detected train.

When the transmission of such an ATC signal is performed by transmitting an ATC signal having a frequency different from that of the TD signal to the track circuit in which the train position is detected as in the prior art, the TD signal and the ATC signal are transmitted. A power filter for separating signals from signals is required, which increases costs and increases the size of the apparatus.

Accordingly, an object of the present invention is to provide a train control device capable of meeting the above demand with a simple configuration.

[0008]

In order to achieve the above object, a train control device according to the present invention transmits a plurality of TD signals corresponding to a plurality of track circuits at predetermined regular intervals and periodically. TD signal generating means for generating a series, TD signal applying means for applying the plurality of generated TD signals to each of the plurality of track circuits, and receiving means for receiving signals from the plurality of track circuits, respectively. , The received signal is generated in a time series corresponding to the time series of the TD signal, and which T among the received signals generated in the time series is generated.
Detecting means for detecting a train position based on whether a received signal corresponding to the D signal is missing, and A for generating an ATC signal to be transmitted to a train running on a track circuit whose train position has been detected.
TC signal generating means, and, among the TD signals generated in the periodic time series, inserting the generated ATC signal in place of the TD signal corresponding to the track circuit whose train position is detected, and A applied to the track circuit whose position is detected
And TC signal applying means.

In order to achieve the above object, a train control device according to the present invention has a plurality of TDs corresponding to a plurality of track circuits.
TD signal generating means for generating a signal at a predetermined constant interval, and in a periodic time series; TD signal applying means for applying the plurality of generated TD signals to each of the plurality of track circuits; Receiving means for receiving signals from each of the plurality of track circuits; generating a received signal in a time series corresponding to the time series of the TD signal, and selecting a TD signal among the received signals generated in the time series; Detecting means for detecting a train position based on whether a corresponding received signal is missing, ATC signal generating means for generating an ATC signal to be transmitted to a train traveling on a track circuit in which the train position has been detected; Of the TD signals generated in the sequence,
TD signal application control means for applying a TD signal except for a TD signal corresponding to a track circuit whose train position has been detected, and an ATC signal application for applying the generated ATC signal to the track circuit whose train position has been detected. And means.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a train control device according to one embodiment.

A plurality (five in this case) of track circuits T1 to T
5 is formed by dividing the rails r on which the train A travels into predetermined lengths, and the divided rails r are configured as a part of an electric circuit. In FIG. 1, the train A is shown to travel like track circuits T1, T2,.

The transmitter 1 includes an amplifier circuit 2 and a number of filters F1 to F5 corresponding to the plurality of track circuits T1 to T5.
Are provided. The transmitter 1 transmits a transmission signal composed of a digitally modulated signal generated by modulating a carrier having a predetermined different frequency (f1) to (f5) corresponding to each of the track circuits T1 to T5 with a TD signal. (Hereinafter, the transmission signal will be described as “(f1) to (f5)”.) The generated transmission signals (f1) to (f5) can be generated and output in a periodic time series having a predetermined constant interval (see FIG. 1B).

The transmitter 1 transmits a transmission signal (ATC signal) composed of a digitally modulated signal generated by modulating a carrier having a frequency used in each of the transmission signals (f1) to (f5) with an ATC signal. ) Can also be output. The contents of the transmission signals (f1) to (f5) composed of the generated digital modulation signals will be described later.

Each of the filters F1 to F5 transmits each transmission signal (f
1) to (f5), so that the outputs of the filters F1 to F5 can be applied to the starting ends of the track circuits T1 to T5 via connection transformers (not shown). ing.

The receiver 3 converts the signals ((f1) to (f5)) from the ends of the track circuits T1 to T5 into connection transformers (not shown) and filters F1 to F similar to those of the transmitter 1.
5 and an amplifier circuit 4.

The received signal is generated in a time series corresponding to the time series of the signal from the transmitter 1, and the transmission signal (f1
) To (f5), and is configured to be able to demodulate a received signal to extract a TD signal. Also, the track signals TR1 to TR5 corresponding to the respective track circuits 1T to 5T can be driven by the received signals.

FIG. 2 shows the data contents of the transmission signals (f1) to (f5) transmitted from the transmitter 1, and FIG.
Shows a transmission state when the train A does not exist in any of the track circuits 1T to 5T, and (b) shows a transmission state when the train A enters the track circuit 1T.

As shown in FIG. 2, each track circuit 1
Transmission signals (f1) assigned to T to 5T, respectively
(F5) is composed of a TD signal and an ATC signal (TD data and ATC data in FIG. 2 and FIG. 3 described later).
When the train position is not detected, the TD signal is selected,
When a train position is detected, an ATC signal is selected.

That is, when no train is detected in any of the track circuits 1T to 5T, a TD signal is transmitted to all of the track circuits 1T to 5T as shown in FIG. Therefore, the receiver 3 can receive the TD signal from any of the track circuits 1T to 5T, so that all the track relays TR1 to TR5 are lifted (ON).
Then, the absence of a train can be detected in each of the track circuits 1T to 5T.

When the train A enters the track circuit 1T, the TD signal from the terminal side of the track circuit 1T disappears, so that the track relay TR1 falls (OFF) and it is detected that a train is present on the track circuit 1T. Is done.

As shown in FIG. 2B, the train speed to be transmitted to the train on the track circuit 1T in place of the TD signal for the track circuit 1T for the track circuit 1T for which the presence of the train is detected. A predetermined ATC signal including information and the like is transmitted from the transmitter 1. Therefore, the train A on the track circuit 1T can receive the ATC signal and perform predetermined train control such as a train speed.

Although omitted in FIG. 2, when the train A advances from the track circuit 1T and enters the track circuit 2T,
The transmission of the TD signal for the track circuit 1T is restarted, and the ATC signal for the train on the track circuit 2T is transmitted instead of the TD signal for the track circuit 2T. In this way,
The contents of the transmission signals (f3) to (f5) assigned to the other track circuits 3T to 5T also change depending on the presence or absence of the train.

As described above, when an ATC signal is inserted instead of one TD signal among a plurality of TD signals, the amount of information of the ATC signal is usually larger than that of the TD signal. There is a concern that the frame of the ATC signal is longer than the frame, and thus the scanning time for train detection is longer. In particular, when a plurality of trains are present in the track circuits 1T to 5T, for example, the track circuits 1T,
If the train is on 5T, both T of track circuits 1T and 5T
Since the ATC signal is inserted instead of the D signal, the scanning time for train detection becomes longer. Thus, in FIG. 3, the scanning time for train detection can be made constant.

FIG. 3 (b) shows a dummy for keeping the scanning time for train detection constant instead of the TD signal for the track circuit 1T when the presence of a train is detected in the track circuit 1T. A frame is inserted, and the ATC signal for the track circuit 1T is repeatedly transmitted from the transmitter 1 until the train advances from the track circuit 1T.

Although not shown in FIG. 3, when the train A advances from the track circuit 1T and enters the track circuit 2T, the TD signal for the track circuit 1T restarts and the track circuit 2T
A dummy frame is inserted into the TD signal of the above, and an ATC signal for the track circuit 2T is further transmitted.

When a plurality of trains are present in the track circuits 1T to 5T, a dummy frame is inserted into each TD signal for the track circuits on which the train is located, and an ATC signal for the track circuit for detecting the train is provided. Sent sequentially.

For example, when the presence of a train is detected in the track circuits 1T and 5T, a dummy frame is inserted into each of the TD signals of the track circuits 1T and 5T, and the ATC signal for the track circuit 1T and the track circuit 5T are inserted. ATC signal is transmitted alternately and repeatedly.

In the above example, the scanning time for train detection is made constant by inserting a dummy frame in place of the TD signal of the track circuit in which the presence of a train is detected, but the scanning is performed without inserting a dummy frame. You may make it shorten shortening time. However, if the scanning time is fixed by inserting a dummy frame, it is possible to easily monitor the scanning time.

In the above-described example, the ATC signal is received only on the vehicle. However, the ATC signal may be received by the receiver 3. As described above, if the ground side can receive the ATC signal, the train position can be detected based on whether or not the ATC signal is received, and the train position detection accuracy can be improved.

[0030]

The train control device according to the present invention transmits a plurality of TD signals corresponding to a plurality of track circuits at predetermined intervals.
And a TD signal generation means for generating a TD signal in a periodic time series;
TD signal applying means for applying the plurality of generated TD signals to each of the plurality of track circuits, receiving means for receiving signals from the plurality of track circuits, and converting the received signal to the TD signal. Detecting means for generating a train in a time series corresponding to the train, detecting a train position based on which of the received signals corresponding to the TD signal is missing among the received signals generated in the train, and detecting the train position. ATC signal generating means for generating an ATC signal to be transmitted to a train running on a track circuit, and a TD signal corresponding to a track circuit whose train position is detected among the TD signals generated in the periodic time series. Alternatively, the generated AT
Since it comprises ATC signal applying means for inserting the C signal and applying it to the track circuit whose train position has been detected, train detection and train control can be performed with a simple configuration.

[0031] The train control device according to the present invention comprises: a TD signal generating means for generating a plurality of TD signals corresponding to a plurality of track circuits at predetermined constant intervals and in a periodic time series; TD signal applying means for applying a plurality of TD signals to each of the plurality of track circuits, receiving means for respectively receiving signals from the plurality of track circuits, and receiving signals corresponding to the time series of the TD signals. A detecting means for detecting a train position based on which of the received signals corresponding to which TD signal is missing among the received signals generated in the time series and a track circuit in which the train position is detected is provided. ATC signal generation means for generating an ATC signal to be transmitted to a running train, and a TD corresponding to a track circuit whose train position has been detected among the TD signals generated in the periodic time series. T for applying the TD signal except No.
Since the D signal application control means and the ATC signal application means for applying the generated ATC signal to the track circuit whose train position has been detected are used, it is possible to prevent the scanning time for train position detection from becoming long. Can be.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram of a transmission signal.

FIG. 3 is an explanatory diagram of a transmission signal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transmitter 2, 4 Amplification circuit 3 Receiver T1-T5 Track circuit r Rail F1-F5 Filter a Train

Continuation of the front page (72) Inventor Atsushi Sugawara 1-13-8 Kamikizaki, Urawa-shi, Saitama Japan Signaling Co., Ltd. Yono Works F-term (reference) 5H161 AA01 BB03 CC13 DD02

Claims (2)

[Claims] 1. A train position detecting signal generating means for generating a plurality of train position detecting signals corresponding to a plurality of track circuits at predetermined constant intervals and in a periodic time series, Train position detecting signal applying means for applying the train position detecting signal to each of the plurality of track circuits, receiving means for receiving signals from each of the plurality of track circuits, and detecting the received signal as the train position signal Means for generating a time series corresponding to the time series of the service signals and detecting a train position based on which of the train position detection signals among the received signals generated in the time series is missing A train control signal generating means for generating a train control signal to be transmitted to a train traveling on a track circuit whose train position has been detected, and for detecting a train position generated in the periodic time series. Train control, in which the generated train control signal is inserted in place of the train position detection signal corresponding to the track circuit whose train position is detected and applied to the track circuit whose train position is detected. A train control device, comprising: 2. A train position detection signal generating means for generating a plurality of train position detection signals corresponding to a plurality of track circuits at predetermined constant intervals and in a periodic time series, Train position detecting signal applying means for applying the train position detecting signal to each of the plurality of track circuits, receiving means for receiving signals from each of the plurality of track circuits, and detecting the received signal as the train position signal Means for generating a time series corresponding to the time series of the service signals and detecting a train position based on which of the train position detection signals among the received signals generated in the time series is missing A train control signal generating means for generating a train control signal to be transmitted to a train traveling on a track circuit whose train position has been detected, and for detecting a train position generated in the periodic time series. The train position detection signal application control means for applying the train position detection signal except for the train position detection signal corresponding to the track circuit in which the train position has been detected, and the generated train control signal And a train control signal applying means for applying to the track circuit whose train position is detected.