JP2955230B2 - Train security equipment - 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 security device in which a train detection function and a transmission function of train speed control information in a non-resonant track circuit are integrated.

[0002]

2. Description of the Related Art In the vicinity of a track circuit, equipment for independently transmitting information to the track circuit for train detection and train speed control for detecting that a train has entered the track circuit for detecting the presence of a block in a blocked section is installed. ing. Various studies have been made to share a plurality of devices having such similar functions.

A non-resonant type non-insulated track circuit does not have a function of blocking a signal wave at the boundary of the track circuit, so that a transmitted signal wave flows into an adjacent section, and interference with the signal wave in that section occurs. It is difficult to share the detection function and the information transmission function for train speed control. Therefore, for example, FIG.
As shown in the figure, the track circuits 2T and 3T and the track circuits 4T and 5
A common train detector 21a, 21b and an ATC transmitter 22a, 22b are provided for each T, and the TD signal wave, which is a train detection wave that needs to be constantly transmitted, is separated by separating the signal frequency for each train detector 21a, 21b. And the signal mixing and separating transformers 2b and 2d
Are transmitted to the orbit circuits 2T to 5T via. Also, the ATC signal wave, which is an information transmission wave for controlling the speed of the train, switches the switching relays 23a and 23b to the corresponding track circuit only when the train enters each track circuit 2T to 5T and stays on the track. Sending. This ATC signal wave transmits a signal wave of a dedicated signal frequency separated from the TD signal wave.

[0004]

As described above, in the non-resonant type non-insulated track circuit, devices for train detection and train control are respectively required for exclusive use, and the train control signal is transmitted only to the train occupied section. A switching circuit for transmission and a function of monitoring the operation of the switching circuit are required, and the amount of equipment becomes enormous.

Further, a train control device that outputs a train control signal cannot shut off the output for failure monitoring of equipment even when the corresponding track circuit is not occupied by the train, and outputs the output to a dummy load. As a result, wasteful power is consumed.

On the other hand, in recent years, devices such as signal security devices have become microelectronics, and it is possible for the same transceiver to transmit different signal waves. Therefore, it is desired to share a transceiver for transmitting and receiving a train detection signal wave and a transceiver for transmitting and receiving a train control signal wave, and to integrate a transceiver provided around a track circuit.

[0007] The present invention has been made to satisfy such a demand, and an object of the present invention is to provide an integrated train security device by sharing a plurality of devices provided around a track circuit.

[0008]

A train safety device according to the present invention is provided for each condition communication circuit and track circuit.
It has a transceiver and a condition communication circuit is provided for each track circuit.
Connected to the selected transceiver, and if there is a train from each transceiver
And send the train position condition by the signal indicating
The receiver has a signal wave data registration unit, a signal wave generation unit, a transmission unit, a reception unit, a signal wave detection unit and a train detection unit, and the signal wave data registration unit includes a train detection signal wave and a train detection signal. All the signal wave data of the control signal wave are registered in advance, and the signal wave generation unit reads out the signal wave data corresponding to the train position condition sent from the condition communication circuit from the signal wave data registration unit and outputs the signal. Generates a wave and sends a synchronization signal to the signal wave detection unit, the transmission unit transmits the generated signal wave to the boundary point on the train exit side of the non-resonant track circuit, and the reception unit transmits the signal transmitted to the track circuit The wave is received at the boundary point on the train entry side of the track circuit, the signal wave detection unit detects the received signal wave synchronized with the synchronization signal sent from the signal wave generation unit, and the train detection unit detects it with the signal wave detection unit Detects the presence or absence of a train in the track circuit by the received signal wave
And send it to the condition communication circuit .

[0009]

In the present invention, a transceiver is provided for each non-resonant track circuit. Each transmitter / receiver is connected to the boundary of each track circuit via a signal mixing / separating transformer, and includes a signal wave data registration unit, a signal wave generation unit, a transmission unit, a reception unit, a signal wave detection unit, and a train detection unit. Having. In the signal wave data registration unit, all signal wave data of the TD signal wave as a train detection signal and the ATC signal wave indicating information on train speed control are registered in advance. The signal wave generator reads out the signal wave data according to the train position condition sent from the condition communication circuit constituted by, for example, a LAN from the signal wave data registration unit and generates a signal wave to be sent to each track circuit. And outputs the synchronization signal of the output signal wave to the signal wave detection unit. The transmitting unit transmits the generated signal wave to the boundary point on the train exit side of each track circuit via the signal mixing / separating transformer. The receiving unit receives the signal wave transmitted to each track circuit at a boundary point on the train entry side of each track circuit. The signal wave detector detects a received signal wave synchronized with the synchronization signal sent from the signal wave generator. The train detector detects the presence or absence of a train in each track circuit based on the received signal wave detected by the signal wave detector.

When the train detector detects that the train is not on the track circuit connected thereto, the signal wave generator of the transmitter / receiver connected to the track circuit generates a TD signal wave and sends it to the transmitter. The transmitting unit transmits the transmitted TD signal wave to the track circuit. When the train detection unit detects that the train has entered the connected track circuit, the signal wave generation unit generates an ATC signal wave and sends it to the transmission unit. The transmitting unit transmits the transmitted ATC signal wave to the track circuit. In this way, the transmitter / receiver connected to each track circuit generates a TD signal wave and an ATC signal wave according to the train position condition and transmits them to each track circuit. The transmission equipment can be unified.

[0011]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. As shown in the figure, transceivers 1a to 1e are provided for each of the non-resonant track circuits 1T to 5T, and the transceivers 1a to 1e are located at the boundaries between the track circuits 1T to 5T, respectively. 2e. The transceivers 1a to 1e transmit a TD signal wave, which is a train detection wave, and an ATC signal wave, which is an information transmission wave for controlling the speed of the train, to each of the track circuits 1T to 5T. As shown in the block diagram of FIG. 2, the signal wave data registration unit 3, the signal wave generation unit 4, the transmission unit 5, the reception unit 6, the signal wave detection unit 7, and the train detection unit 8 perform detection. And

The signal wave data registration unit 3 stores the TD signal wave and A
All the signal wave data of the TC signal wave are registered in advance. The signal wave generator 4 reads out the signal wave data according to the train position condition sent from the condition communication circuit 9 constituted by a LAN or the like from the signal wave data registration unit 3 and sends the read signal wave data to each of the track circuits 1T to 5T. A signal wave to be transmitted is generated and output to the transmission unit 5, and a synchronization signal of the output signal wave is sent to the signal wave detection unit 7. The transmitting unit 5 transmits the generated signal waves to the boundary points 10a to 10e of the track circuits 1T to 5T on the train exit side via the signal mixing / separating transformers 2a to 2e. The receiving unit 6 converts the signal waves transmitted to the respective track circuits 1T to 5T into the respective track circuits 1T to 5T.
It is received at the boundary point on the 5T train entry side. Signal wave detector 7
Detects a received signal wave synchronized with the synchronization signal sent from the signal wave generator 4. The train detector 8 detects the presence or absence of a train in each of the track circuits 1T to 5T based on the received signal wave detected by the signal wave detector 7.

[0013] The transceiver 1 configured as described above has a TD.
The operation of generating and transmitting a signal wave and an ATC signal wave will be described with reference to a signal wave generation / transmission procedure diagram of FIG.

For example, as shown in FIG. 3 (a), when the train 11 does not enter the track circuit 1T, 3T and the train 11 enters the track circuit 2T, the transmission / reception connected to the track circuit 1T, 3T is performed. The signal wave generator 4 of each of the devices 1a and 1c outputs a signal wave data.
The signal wave data registered in the data registration unit 3 is read out under the condition that the train is on the track circuit 2T, and the T wave having a predetermined frequency is read out.
A D signal wave is generated and sent to the transmission unit 5. The transmitting unit 5 transmits the transmitted TD signal wave to the orbit circuits 1T and 3T. The TD signal wave transmitted to the track circuits 1T and 3T is transmitted to the track circuit 1
The signal is received by the receiver 6 connected to the entry end of the T, 3T, sent to the train detector 8 via the signal detector 7,
Clarifies that there is no train in the track circuits 1T and 3T.

On the other hand, the signal wave generator 4 of the transmitter / receiver 1b connected to the track circuit 2T in which the train 11 has entered enters a signal wave
The signal wave data registered in the data registration unit 3 is read out under the condition that the train has entered, an ATC signal wave is generated, and the transmission unit 5
Send to The transmission unit 5 transmits the transmitted ATC signal wave to the orbit circuit 2
T to the train 11 that has entered the track circuit 2T
Send C information.

As shown in FIG. 3 (b), the train 11 travels on the track circuit 2T and the boundary point 10 on the exit side of the track circuit 2T.
b, enters the track circuit 3T, the TD signal wave sent to the track circuit 3T is short-circuited on the axle of the train 11, and the receiving section 6 of the transceiver 1c connected to the track circuit 3T receives the TD signal wave. Disappears, and when the train detector 8 detects that the train 11 has entered the track circuit 3T, the transceiver 1c connected to the advancing end of the track circuit 3T according to the train detection condition.
A predetermined ATC signal wave is generated by the signal wave generation unit 4 and transmitted from the reception unit 5 to the track circuit 3T. At this time, the transceiver 1b connected to the track circuit 2T transmits the ATC signal to the track circuit 2T.
The signal wave is continuously transmitted. Then, as shown in FIG. 3 (c), when the train 11 has advanced into the track circuit 3T by a predetermined advance distance L, the ATC signal wave received by the receiver 6 of the transceiver 1b connected to the track circuit 2T is output. At the incoming level, the train detection unit 8 confirms that the train 11 has advanced from the track circuit 2T. Train 1 from this track circuit 2T
3 is confirmed, the signal wave generator 4 of the transceiver 1b connected to the track circuit 2T generates a TD signal wave and transmits the signal from the transmitter 5 to the track circuit 2 as shown in FIG.
Send to T.

In this state, the subsequent train 12
Enters, the ATC signal wave is generated by the signal wave generator 4 of the transceiver 1a connected to the track circuit 1T and transmitted from the transmitter 5 to the track circuit 1T in the same manner as described above. When the subsequent train 12 advances from the track circuit 1T to the track circuit 2T, as shown in FIG. 3 (e), an ATC signal wave is transmitted from the transceiver 1b connected to the track circuit 2T, and
A TD signal wave is transmitted from the transceiver 1a connected to T. At this time, the ATC waves of the orbital circuit 2T and the orbital circuit 3T include segmentation information such as the orbital circuit number and the like, so that signal segmentation of the orbital circuit 2T and the orbital circuit 3T can be performed.

In this way, the transceivers 1a to 1e connected to the track circuits 1T to 5T are controlled by the TD according to the train position conditions.
Since the signal wave and the ATC signal wave are generated and transmitted to each track circuit, the transmission equipment for the TD signal wave and the ATC signal wave can be unified.

[0019]

As described above, according to the present invention, when all the signal wave data of the train detection signal wave and the train control signal wave are registered in advance and it is detected that the train is not on the track circuit, When the signal wave generator of the transmission / reception unit connected to the track circuit generates a train detection signal wave, transmits the generated train detection signal wave from the transmission unit to the track circuit, and detects that the train has entered the track circuit. Since the signal wave generator generates the train control signal wave and sends the generated train control signal wave from the transmitter, the train detection signal wave and the train control signal wave can be transmitted by a single transceiver. It is possible to integrate the transmission equipment for the train detection signal wave and the train control signal wave.

Further, since the transceiver connected to each track circuit generates a train detection signal wave and a train control signal wave according to the train position condition and transmits them to each track circuit, the train is located on the track circuit. This eliminates the need for a transmission control circuit for transmitting a train control signal wave that detects and transmits the fact, and can further simplify the equipment.

Furthermore, since the train detection signal wave and the train control signal wave are switched and transmitted according to the train position condition, a dummy load for outputting the train control signal wave for monitoring the failure of the equipment is required. In addition, power consumption can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a transceiver of the embodiment.

FIG. 3 is a signal wave generation / transmission procedure diagram showing the operation of the embodiment.

FIG. 4 is a block diagram showing a configuration of a conventional example.

[Explanation of symbols]

 1T-5T Track circuit 1a-1e Transceiver 2a-2e Signal mixing / separating transformer 3 Signal wave data registration unit 4 Signal wave generation unit 5 Transmission unit 6 Receiving unit 7 Signal wave detection unit 8 Train detection unit 9 Condition communication circuit

Claims (1)

(57) [Claims] A condition communication circuit and a track circuit are provided.
The condition communication circuit is connected to the transmitter / receiver provided for each track circuit.
Connected by a signal indicating the presence or absence of a train from each transceiver.
The train position condition is sent to each transceiver, and the transceiver has a signal wave data registration unit, a signal wave generation unit, a transmission unit, a reception unit, a signal wave detection unit and a train detection unit. all signal wave data of the registering unit train detection signal wave and the train control signal wave - data is registered in advance, the signal wave generating unit signal wave de corresponding to the train position condition sent from conditions contact circuit - signal data A signal wave is read out from the wave data registration unit to generate a signal wave, and a synchronization signal is sent to the signal wave detection unit, and the transmission unit transmits the generated signal wave to a boundary point on the train exit side of the non-resonant track circuit, The receiving unit receives the signal wave transmitted to the track circuit at a boundary point on the train entry side of the track circuit, and the signal wave detecting unit detects a received signal wave synchronized with a synchronization signal sent from the signal wave generating unit, and The detector is placed in the track circuit by the received signal wave detected by the signal wave detector. Detects the presence or absence of the train
A train security device, which is notified and sent to a condition communication circuit .