JP2829603B2 - Single wire bidirectional non-insulated track circuit device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-resonant type non-insulating system for transmitting information on driving direction control and signal lamp display control in each section between stations where single-line bidirectional operation is performed, and detecting train presence in each section. The present invention relates to a track circuit device.

[0002]

2. Description of the Related Art As shown in FIG. 4, an automatic block system which performs single-track bidirectional operation is a three-position multi-indicated insulated track continuously connected to a line between A station 1 and B station 2 at both ends. Circuits are provided, and a traffic light 3 in the upward direction U and a traffic light 4 in the downward direction D are installed at the boundaries of the respective track circuits. And A station 1 at both ends
And a direction lever 5 at the B station 2, and a meeting between the A station 1 and the B station 2, and by handling the direction lever 5 cooperatively, when there is no train between the stations 1 and 2, one direction, For example, a group of traffic lights 3 belonging to the ascending direction U all indicate progress, all the traffic lights 4 in the down direction D are stopped, and the insulated track circuit performs signal light indication control and detects train presence in the section. I have.

[0003]

However, in the above-mentioned automatic block system in which the single-line bidirectional operation is performed, information transmission and direction control for directional control are performed between the stations, so that it is not possible to perform the communication between the stations. It was necessary to connect the equipment of each signal with a multi-core cable, and the installation and maintenance were not easy.

The present invention has been made in order to solve the above-mentioned disadvantages, and has a simple structure capable of performing signal light indication control and train presence detection with a simple configuration and performing information transmission and direction control for direction control. It is an object of the present invention to provide a bidirectional non-insulated track circuit device.

[0005]

SUMMARY OF THE INVENTION A single-track bidirectional non-insulated track circuit device according to the present invention is a track circuit device connected to a boundary of a non-insulated track circuit provided continuously on a line performing single-wire bidirectional operation. There are two sets of receivers (11) and (12)
, A signal selector (13), (14), a relay (15), a signal generator (16), a carrier generator (17), a modulator (18), and a transmitter (19). Department (1
7) generates a carrier wave having a different frequency for each installation location, one receiving unit (11) receives an information signal by a carrier wave of a frequency transmitted from an up track circuit, and the other receiving unit (12) receives a down signal. Receiving the information signal by the carrier wave of the frequency transmitted from the trajectory circuit of the direction, the signal selection unit (13),
(14) selects a signal received by each of the receiving units (11) and (12) and outputs the selected signal to the relay unit (15), and the signal generating unit (16) indicates an upstream progress indication and a caution indication. And an information signal of a different frequency indicating a forward progress indication and a caution indication in the down direction are generated and output. The relay section (15) includes an information selection section (151) and a direction holding section. (152) and an information output section (153). The information selection section (151) has a plurality of relays indicating operation direction information and signal light control information based on information from the signal selection sections (13) and (14). The direction holding unit (152) has a direction holding relay for holding the operation direction information indicated by the relay indicating the operation direction information of the information selection unit (151), and the information output unit. (153) is between the signal generator (16) and the modulator (18). The information signal of the frequency required for each track circuit is selected from the train position information and external conditions such as the interlocking device and output to the modulation unit (18). The contact of the direction holding relay and the information selection unit are selected. The modulation section (18) modulates the carrier output from the carrier generation section (17) with the information signal sent from the information output section (153). The transmitted signal wave is sent to the transmission unit (19), and the transmission unit (19)
Transmits information output from the modulating section (18) to each track circuit, and performs bidirectional information transmission via the track circuit and detection of train presence in the section.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The non-insulated track circuit device for single-wire bidirectional communication according to the present invention is a non-resonant type non-insulated track circuit that does not use the resonance phenomenon with rail inductance. The transmission of the driving direction control information and the course control information via the rails is performed by utilizing the fact that signals can be transmitted in two directions and signals can be received simultaneously from both directions.

Therefore, the track circuit device (6a) connected to the boundary between the non-insulated track circuits (1T) and (2T) of the line that performs single-line bidirectional operation has two sets of receiving units (11) and (12) and a signal. Selection units (13) and (14), relay unit (15), signal generation unit (16), carrier generation unit (17), and modulation unit (1)
8) and a transmission section (19) are provided.

The carrier generation section (17) generates a carrier having a different frequency for each installation location. One receiving unit (11) receives the information signal by the carrier wave of the frequency transmitted from the upstream track circuit, and the other receiving unit (12) receives the information signal by the carrier wave of the frequency transmitted from the downstream track circuit. I do. The signal selecting section (13) selects and amplifies the signal from the upstream received by the receiving section (11) and amplifies the selected signal.
5), and the signal selecting section (14) selects and amplifies the signal from the down direction received by the receiving section (12) and outputs it to the relay section (15). A signal generator (16) for transmitting information signals of different frequencies indicating an upstream progress indication and a caution indication;
An information signal of a different frequency indicating a forward progress indication and a caution indication is generated and output to the relay unit (15). Relay
The unit (15) includes an information selection unit (151) and a direction holding unit (15).
2) and an information output unit (153). The information selection unit (151) has a relay indicating operation direction information and a plurality of relays indicating signal light control information based on information from the signal selection units (13) and (14). Has a direction holding relay for holding the operation direction information indicated by the relay indicating the operation direction information of the information selection section (151), and the information output section (153) has a contact point of the direction holding relay and the information selection section. It is composed of a plurality of relay contacts indicating the signal light control information of (151), and is provided between the signal generator (16) and the modulator (18). An information signal having a frequency required for the track circuit is selected and output to the modulation section (18). Modulation unit (18)
Sends a signal wave modulated by the information signal sent from the information output unit (153) to the carrier wave output from the carrier wave generation unit (17) to the transmission unit (19). The transmission unit (19) transmits information output from the modulation unit (18) to each track circuit.

[0009] For example, when setting the up direction as the driving direction, when a modulated wave carrying an information signal indicating the up direction progress indication is transmitted from the up direction track circuit, the receiving unit (11) transmits. The modulated wave received is demodulated and sent to the signal selector (13). The signal selector (13) receives the information signal and sends the information signal to the information selector (151) of the relay (15).
And a relay indicating the operation direction information and a relay indicating the upward progress indication are provided. The direction holding relay of the direction holding section (152) is excited by exciting the relay indicating the operation direction information.
And self-hold. Then, an information signal indicating the progress in the upward direction generated by the signal generator (16) is sent to the modulator (18) via each contact of the information output unit (153). The modulation unit (18) modulates the carrier generated by the carrier generation unit (17) with the transmitted information signal indicating the upstream progress indication and sends the modulated signal to the transmission unit (19). Send to the direction and down track circuits. When the modulated wave transmitted to the down track circuit is received by the track circuit device provided at the down boundary of the down circuit, the up wave proceeds to the carrier wave having a frequency different from the frequency received by the same processing as described above. The modulated wave carrying the information signal indicating the present is transmitted to the track circuit. By repeating this reception and transmission sequentially for each track circuit, it is finally possible to detect that the train is not on the entire section from the station on the destination side to the station on the departure side, It is set that the operation direction is the upward direction.

[0010]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. As shown in the figure, a non-resonant non-insulated track circuit 1T to 3T that does not use rail resonance is continuously provided on a line between Station A 1 and Station B 2 that performs single-track bidirectional operation. A traffic light 3 in the upward direction U and a traffic light 4 in the downward direction D are installed at the boundaries of the track circuits 1T to 3T, respectively, and the levers 5 are provided at the A station 1 and the B station 2 at both ends. A track circuit device 6 is connected to the rails 8a and 8b via matching transformers 7 at the boundaries between the track circuits 1T to 3T.

Each track circuit device 6 includes two sets of receiving units 11, 1
2, a signal selector 13, 14, a relay unit 15, a signal generator 16, a carrier generator 17, a modulator 18, and a transmitter 19. Carrier generator 17 is connected to the boundary of the track circuit 1T and track circuits 2T track circuit device 6a generates a carrier wave of frequency f _2, connected to the boundary of the track circuit 2T and track circuit 3T trajectory circuit device 6b of carrier wave generating unit 17 generates a carrier wave of frequency f _3. The receiving unit 11 is a track circuit 1T
Receiving the signal by the carrier wave of frequency f ₁ to be sent from,
Receiver 12 receives the signal by the carrier wave of frequency f ₃ sent from the track circuit unit 6b to the track circuit 2T. Each of the signal selection units 13 and 14 has a plurality of filters, selects a signal received by the reception units 11 and 12, and outputs the selected signal to the relay unit 15.

The signal generator 16 has an information signal of a frequency f _GU indicating an upward progress indication, an information signal of a frequency f _YU indicating an upward caution indication, and a frequency f _GU indicating a downward progress indication.
_It generates and outputs an information signal of _{GD and} an information signal of a frequency f _YD indicating a downward caution indication.

The relay section 15 has an information selection section 151, a direction holding section 152, and an information output section 153. The information selection section 151 has a U-relay, which is an up-direction selection relay for selecting an up-direction, and a UG, which is an up-direction progress indication relay that controls the traffic signal 1 in the up direction and forms a contact point of the information output section 153. U which is a relay and an upward warning display relay
Y relay and UR relay, which is the upstream stop indicating relay
A D relay, which is a downlink selection relay for selecting the downlink, and a DG relay, which is a downlink progress indication relay that controls the traffic signal 2 in the downlink and forms a contact point of the information output unit 153, and a downlink. It has a DY relay, which is a direction warning presenting relay, and a DR relay, which is a downward stop presenting relay. As shown in FIG. 2, a contact UG that closes when the UG relay is excited is connected to the progress indicator light 3G of the signal light 3 indicating the upward direction, and the UG relay is not connected to the caution indicator light 3Y. A contact UG that closes when excited and a contact UY that closes when the UY relay is excited are connected in series, and the stop indicator light 3R is closed when the UG relay and UY relay are not excited. Contact points UG and UY are connected in series.
Similarly, as shown in FIG. 3, a contact DG that closes when the DG relay is energized is connected to the progress indicator light 4G of the signal light 4 indicating the downward direction, and the DG relay is connected to the caution indicator light 4Y. Are connected in series when the DG relay and the DY relay are de-energized, and the contact DG that closes when the DY relay is de-energized is connected in series. Closed contacts DG and DY are connected in series.

The direction holding unit 152 has a UM relay for holding the upward direction and a DM relay for holding the downward direction.
The UM relay is a contact U which closes when the U relay is excited.
Are connected in series, and a self-holding contact UM connected in series with a contact D that opens when the D relay is excited is connected in parallel with the contact U. In the DM relay, a contact D that closes when the D relay is excited is connected in series, and a self-holding contact DM that is connected in series with the contact U that opens when the U relay is excited is parallel to the contact D. It is connected to the. This U
The direction holding unit 152 having the M relay and the DM relay is backed up by a battery in order to maintain the operation direction even when a power failure occurs.

The information output section 153 is provided between the signal generation section 16 and the modulation section 18 and selects an information signal of a frequency necessary for the track circuits 1T to 3T from train position information and external conditions such as an interlocking device. The signal is output to the modulation unit 18 and U
A contact UM that closes when the M relay is excited and a contact DM that closes when the DM relay is excited are connected to the modulation unit 18. UG between the contact UM and the signal generator 16
A relay, a UY relay and a UR relay are provided.
When the UG relay is excited and the ascending progress indicator light 3G is lit, and when the UG relay is not excited and the UY relay is excited and the ascending indicator light 3Y is lit, the frequency is increased. outputting information signals f _GU, UG relay - and UY relays - and UR relay - in to output an information signal of a frequency f _YU when uplink stop current示灯3R is lit at all a non-excitation It is composed. A DG relay, a DY relay, and a DR relay are provided between the contact DM and the signal generator 16.
Are provided, and when the DG relay is excited and the down progress indicator light 4G is lit, and when the DG relay is not excited and the DY relay is excited, the down alert indicator light 4Y is lit. Output an information signal of frequency f _GD when
The G relay, the DY relay, and the DR relay are all non-energized, and output an information signal of the frequency f _YD when the stop indicator lamp 4R in the downward direction is lit.

The modulator 18 modulates the carrier output from the carrier generator 17 with an information signal sent from the information output unit 153 and sends the modulated signal to the transmitter 19. The transmission unit 19 transmits the information output from the modulation unit 18 to each of the track circuits 1T via the matching transformer 7.
To 3T.

When setting the driving direction to control the operation of the train between the A station 1 and the B station 2 performing the single-track bidirectional operation configured as described above, the handling of the A station 1 and the B station 2 is handled. The person confirms that there is no train in the section between the A station 1 and the B station 2 by telephone communication or the like, and the station on the destination side, for example, the station A when setting the up direction U as the driving direction The operator 1 sets the direction lever 5 of the A station 1 to the upward direction U. By setting the direction lever 5 of the A station 1 to the up direction U, the information indicating the up direction progress indication of the frequency f _{GU to} the carrier wave of the frequency f ₁ is provided to the first outer track circuit 1T on the A station 1 side. A modulated wave carrying the signal is transmitted. The receiving unit 11 of the track circuit device 6a provided at the boundary between the track circuit 1T and the track circuit 2T has A
The modulation wave having the frequency f ₁ transmitted from the station 1 is received, demodulated, and sent to the signal selection unit 13. The signal selection unit 13 receives the information signal of the frequency _{fGU from} the information selection unit 15 of the relay unit 15.
The U relay and the UG relay provided in 1 are excited. When the U relay is excited, the UM relay of the direction holding unit 152 is excited and self-held, and the DM relay is de-energized. If the UG relay is energized while the UM relay is energized,
An information signal, which is generated by the signal generator 16 and indicates the upward progression of the frequency _fGU , is sent to the modulator 18 via the UG relay contact UG of the information output unit 153. The modulator 18 modulates the carrier wave of the frequency f ₂ generated by the carrier wave generator 17 with an information signal indicating that the frequency f _GU is going forward and sends it to the transmitter 19. Transmitter 19 transmits the modulated wave of the frequency f ₂ carrying the information signal of a frequency f _GU via the matching transformer 7 track circuit 1T, the 2T. Modulated wave of a frequency f ₂ which is transmitted to the track circuit 2T is received by the receiver 11 of the track circuit apparatus 6b provided in the boundary of the track circuit 2T and track circuit 3T, transmission of the track circuit device 6b by the same processing The modulated wave obtained by modulating the carrier wave of the frequency f ₃ from the unit 19 with the information signal indicating the upward progress indication of the frequency f _GU is _transformed into the track circuit 2.
T, 3T. This reception and transmission are sequentially repeated for each track circuit, so that the station B at the originating side is finally reached.
The frequency f is applied to the receiving unit 11 of the track circuit device in the first inner section of
An information signal indicating the upward progress indication of the _GU is sent. As a result, it is possible to detect that the train does not exist in all sections between the A station 1 and the B station 2, and it is set that the operation direction of the train is the upward direction. As a result, Station A 1
The traffic light 3 in the up direction of the whole section between the station and the B station 2 becomes the progress indication. Further, a modulated wave obtained by modulating a carrier wave of frequency f ₃ with an information signal indicating the upward progression of the frequency f _GU from the transmitting unit 19 of the track circuit device 6 b provided at the boundary between the track circuit 2 T and the track circuit 3 T The signal is sent to 2T and received by the receiving unit 12 of the track circuit device 6a, but the signal selecting unit 14 is configured to select the frequencies f _GD and f _YD indicating the downward direction D, and thus selects the frequency f _GU. , D relay and DG
The relay, the DY relay and the DR relay are all in a non-excited state, and the signal light 4 indicating the down direction of the entire section between the A station 1 and the B station 2 is stopped. Thus, the operation of the train in the upward direction U is enabled.

In this state, the train in the upward direction U departs from the station B and proceeds, so that no modulated wave is sent to the station B side 2 of the track circuit where the train is located, but the UM relay stores the driving direction. As a result, the driving direction does not change, and each track circuit controls the signal light 3 in the upward direction as the train advances and transmits an information signal of the frequency _fGU or the frequency _fGY .

When setting the down direction as the driving direction between the A station 1 and the B station 2, the operator of the B station 2
Is set in the downward direction D. Then, a modulated wave modulated by the information signal indicating the downward progression of the frequency f _GD is transmitted from the B station 2, and the reception by the reception unit 12 and the transmission by the transmission unit 19 of the track circuit device 6 are performed in the same manner as in the upward direction. Is repeated, and the signal lights 4 in the down direction in all sections of the A station 1 and the B station 2 are shown as traveling, and the signal lights 3 in the up direction are stopped and shown, so that the train in the down direction U can be operated.

[0020]

As described above, the present invention is connected to the boundary of the rail forming the non-insulated track for single-wire bidirectional, and the driving direction control information and the course control information are obtained from the rail forming the single-wire bidirectional non-insulated track circuit. Receives a signal represented by a predetermined frequency, performs signal lamp display control processing based on the received signal, generates a signal representing driving direction control information and route control information at a predetermined frequency, and generates the generated signal. Since the modulated data is transmitted to the non-insulated track circuit, the driving direction control information and the course control information can be sequentially transmitted with a simple configuration.

Further, since the driving direction control information and the course control information are transmitted through the non-insulated track circuit, it is not necessary to connect the stations or the equipment of each signal with a multi-core cable. Installation and maintenance management can be facilitated, and installation and maintenance costs can be reduced.

Further, since the processing of the received information and the processing of the transmitted information are performed at the relay and its contact point, the information can be transmitted and received stably without being affected by noise.

[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 connection diagram of signal lights in an upward direction.

FIG. 3 is a connection diagram of signal lights in a downward direction.

FIG. 4 is a layout diagram of a non-insulated track circuit for single-wire bidirectional use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 A station 2 B station 3 Up going signal 4 Down going signal 5 Direction lever 6 Track circuit device 7 Matching transformer 11,12 Receiving unit 13,14 Signal selecting unit 15 Relay unit 16 Signal generating unit 17 Carrier generating unit Reference Signs List 18 Modulation unit 19 Transmission unit 151 Information selection unit 152 Direction holding unit 153 Information output unit

Claims (1)

(57) [Claims] 1. A track circuit device connected to a boundary of a non-insulated track circuit provided continuously on a line for performing single-line bidirectional operation, comprising two sets of receiving units (11) and (12) and a signal selecting unit. (13), (14), a relay section (15), a signal generation section (16), a carrier generation section (17), a modulation section (18), and a transmission section (19), and a carrier generation section (17). Generates a carrier wave of a different frequency for each installation location, one receiving section (11) receives an information signal by a carrier wave of a frequency sent from an upstream track circuit, and the other receiving section (12) receives a downstream signal. Receiving the information signal by the carrier wave of the frequency transmitted from the track circuit, the signal selection units (13) and (14) respectively receive the reception units (11),
The signal received in (12) is selected and output to the relay unit (15). The signal generator (16) outputs an information signal of a different frequency indicating the progress indication and the warning indication in the up direction, and the down signal in the down direction. The relay section (15) has an information selection section (151), a direction holding section (152), and an information output section (153). The information selection unit (151) has a relay indicating operation direction information and a plurality of relays indicating signal light control information based on information from the signal selection units (13) and (14). ) Has a direction holding relay for holding the operation direction information indicated by the relay indicating the operation direction information of the information selection section (151), and the information output section (153) has a signal generation section (16) and a modulation section. Section (18), train position information and interlocking device The information signal of the frequency required for each track circuit is selected from the external conditions described above and output to the modulating unit (18), and a plurality of signals indicating the contact points of the direction holding relay and the signal light control information of the information selecting unit (151). The modulation section (18) transmits to the transmission section (19) a signal wave obtained by modulating a carrier wave output from the carrier generation section (17) with an information signal sent from the information output section (153). A transmission / transmission unit (19) transmits information output from the modulation unit (18) to each track circuit, and performs two-way information transmission via the track circuit and detection of train presence in a section. For non-insulated track circuit device.