KR101538214B1 - Track circuit apparatus and control method thereof - Google Patents

Abstract

The present invention relates to a railway track circuit device and a control method thereof.
A rail track circuit device according to the present invention, a transmitter for transmitting a signal current flowing through a track circuit, A transmitter side mini-bode for transmitting the signal current transmitted from the transmitter to the rail; A receiving-side mini-bond for sensing a signal current flowing in the rail; A receiver for receiving a signal current from the receiving mini-bond; A trajectory relay short-circuited or opened according to whether or not the signal current of the receiver is received; And a controller for controlling the track circuit in cooperation with the transmitter, the receiver and the track relay, wherein at least one of the transmitting-side mini-bond and the receiving-side mini-bond includes one impedance bond and a plurality of coupling units and a transfer switch And the one impedance bond is selectively connected to one of the plurality of coupling units by the changeover switch.

Description

Technical Field [0001] The present invention relates to a track circuit apparatus and a control method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a railway track circuit device and a control method thereof, and more particularly to a railway track circuit device that remotely inspects whether a mini- And more particularly, to a railway track circuit device and a control method thereof.

The railway signal field is a field where priority is given to ensuring the safe operation of trains by pre-checking and eliminating the risk factors around the railway line. In order to ensure the safe operation of a train, it is necessary to check the position of a train in front of it, how much speed it is or whether it is stopping. Such information is called a "track circuit" .

The track circuit uses the rail as a part of the electric circuit so that a weak current flows through both rails and when the train passes, the current flowing through both rails is detected as a short circuit so that the information of the train's operation can be obtained. And can control the signaling device, the line switching device, and the like based on the information.

The track circuit device consists of an impedance bond, a mini bond, etc. installed on the rail in the field and a voltage stabilizer, a transmitter, a receiver, a track relay, and a controller provided in the signal mechanical room of the history.

The Impedance Bond on the rail of the field serves as a transformer to distinguish between the traction current (return current) that drives the train and the signal current for the track circuit. The mini-bond is composed of a combination of an impedance bond and a coupling unit. The coupling unit serves as a filter for distinguishing the train detection frequency from the on-chip signal frequency. For reference, the impedance bond and mini bond can be selectively used depending on the shape and structure of the track circuit.

The voltage stabilizer provided in the signal machine room of the history stabilizes the voltage of 110V or 220V and the transmitter transmits the signal current flowing along the track circuit to the transmission side impedance bond or the mini bond. The receiver receives the signal current from the reception side impedance bond or the mini bond, and the trajectory relay informs whether or not the trajectory circuit of the train is occupied by shorting or opening according to whether or not the signal current of the receiver is received. The controller works in conjunction with a voltage regulator, transmitter, receiver, orbital relay to control the orbital circuitry as a whole.

On the other hand, when the train is operated, malfunction occurs due to malfunction of the track circuit several to several times every year. One of the main causes of the occurrence of the on-track trouble of the track circuit device is the failure of the mini-bond. Especially, among the mini-bonds, the coupling unit is the cause of the failure rather than the impedance bond due to the characteristics of the component.

Since the mini bond (see Fig. 1) is a field facility installed on the rail on which the train passes, it is very influenced by the external environment (temperature, vibration, precipitation, etc.) do. Therefore, if the coupling unit malfunctions and the track circuit malfunctions, in the case of the prior art, the operator has to be put in the field to replace the entire mini-bond.

However, since the mini-bond is more than 30kg in weight, it is difficult for an adult to carry it. Also, since the existing mini-bond installed on the rail must be removed and a new mini-bond must be installed, the operation is difficult and the operation time is long. It is possible to prevent the passengers from traveling to the next train in a sequential manner when the obstacle occurs even if only a few minutes are incurred. Even public transportation can be paralyzed, causing serious damage.

Korean Patent Publication No. 10-2004-0024950 Korean Patent Publication No. 10-2007-0057718 Korean Patent Publication No. 10-2012-0042798

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object of the present invention is to detect a malfunction of a track circuit and, if the cause is a failure of a coupling unit of a mini- Thereby enabling a trajectory circuit to be restored to a normal state quickly and a method of controlling the same.

It is another object of the present invention to provide a mini-bond which can be selectively interlocked with a plurality of coupling units at the time of manufacturing a mini-bond, so that, when a currently used coupling unit fails, .

According to an aspect of the present invention, there is provided a rail track circuit device comprising: a transmitter for transmitting a signal current flowing through a track circuit; A transmitter side mini-bode for transmitting the signal current transmitted from the transmitter to the rail; A receiving-side mini-bond for sensing a signal current flowing in the rail; A receiver for receiving a signal current from the receiving mini-bond; A trajectory relay short-circuited or opened according to whether or not the signal current of the receiver is received; And a controller for controlling the track circuit in cooperation with the transmitter, the receiver and the track relay, wherein at least one of the transmitting-side mini-bond and the receiving-side mini-bond includes one impedance bond and a plurality of coupling units and a transfer switch And the one impedance bond is selectively connected to one of the plurality of coupling units by the changeover switch.

The mini-bond constituting the railway track circuit according to an embodiment of the present invention includes: an impedance bond including a primary coil connected to a rail for a railway and a secondary coil for causing the primary coil and the electromagnetic induction action; A first coupling unit having a resonance circuit for a first frequency and a resonance circuit for a second frequency; A second coupling unit having a resonance circuit for the first frequency and a resonance circuit for the second frequency; And a switch for selectively connecting the impedance bond and one of the first coupling unit and the second coupling unit.

According to another aspect of the present invention, there is provided a method for controlling a railway track circuit, comprising: checking a transmission voltage and a reception voltage of the track circuit when a fault occurs in the track circuit; And commanding the controller to perform remote switching of at least one of a receiving-side mini-bond and a transmitting-side mini-bond when the transmission voltage of the track circuit is normal and the reception voltage is abnormal.

According to the present invention, a malfunction of a track circuit can be detected remotely. If malfunction is caused by a malfunction of the coupling unit of the mini-bond, the track circuit can be quickly restored by remote transfer to the spare coupling unit It has an effect.

In addition, according to the present invention, the structure of the mini-bond is configured such that one impedance bond can be selectively switched with a plurality of coupling units. If the coupling unit currently in use fails, So that the track circuit can be restored to its normal state quickly without replacing the mini-bonds installed in the field.

Fig. 1 is a photograph of a mini bond installed on a rail in the field.
2 is a view for explaining a railway track circuit.
3 is a schematic block diagram of a railway track circuit device according to the present invention.
4 is a block diagram of a mini-bond according to an embodiment of the present invention.
5 is a flowchart of a method of controlling a railway track circuit according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention unnecessarily obscure.

FIG. 2 shows a track circuit for a railway. When a mini-bond (MB) is installed across both rails through which a train passes, a single block is formed by both rails and two mini-bonds across the rail. And a signal current flows therein, thereby forming one track circuit.

3 is a schematic block diagram of a railway track circuit device according to the present invention. For reference, the track circuit shown in FIG. 3 exemplifies a non-insulated AF (Audio Frequency) track circuit.

3, the rail track circuit device according to the present invention includes a mini bond 100 and 100 'installed on a rail in the field, a transmitter 210 installed in the signal machine room, a receiver 220, a track relay 230 A controller 240, and the like.

The mini-bond mounted on the rail of the field is composed of a combination of an impedance bond and a coupling unit, where the impedance bond is a combination of a train current (return current) And the coupling unit serves as a filter for distinguishing the train detection frequency from the on-chip signal frequency.

In this regard, FIG. 4 shows a configuration of a mini-bond according to an embodiment of the present invention. For reference, the mini-bond according to the present invention has a plurality of coupling units and is selectively connected to an impedance bond through a transfer switch.

Referring to FIG. 4, the mini-bond 100 according to the present invention includes an impedance bond 110, a first coupling unit 120, a second coupling unit 120 ', and a transfer switch 130.

The impedance bond is formed by a transformer structure of a primary coil and a secondary coil causing electromagnetic induction phenomenon. The first terminal P1 of the primary coil is connected to the first rail and the second terminal P2 Is connected to the second rail. The center terminal CT of the primary coil is connected to a retrace line for returning the electric current (return current). The first terminal S1 and the second terminal S2 of the secondary coil are connected to the transfer switch 130 through which the first coupling unit 120 or the second coupling unit 120 ' And are selectively connected.

The coupling units 120 and 120 'include two LC resonance circuits for transmitting and receiving frequencies, that is, first LC resonance circuits L1 and C1 and second LC resonance circuits L2 and C2, The first terminal A and the second terminal B of the coupling units 120 and 120 'are connected to the equipment of the signal machine room through the AF cable , Transmitter, receiver, orbit relay).

The change-over switch 130 selectively connects one impedance bond 110 with one of the plurality of coupling units 120 and 120 '. The switch 130 may be remotely switched by the controller 240 of the signaling machine room, and may of course be manually switched by the user.

Referring again to FIG. 3, the mini-bonds 100 and 100 ', which are connected to the first and second rails to form a track circuit, respectively serve as a transmitting-side mini-bond and a receiving-side mini-bond. For example, one mini-bond 110 is used as the transmit-side mini-bond in the first track circuit and as the receive-side mini-bond in the second track circuit. To this end, the coupling units 120 and 120 'are connected to the first LC resonant circuit (L1, C1) for the first frequency (for example, the transmission frequency) and the second LC resonant circuit And a second LC resonance circuit (L2, C2).

3, the first mini-bond 100 is connected to the transmitter 210 and the second mini-bond 100 'is connected to the receiver 220 in order to facilitate understanding of one track circuit , As described above, one mini-bond acts as a transmitting-side mini-bond and a receiving-side mini-bond, respectively.

The transmitter 210 transmits the signal current flowing along the track circuit to the transmitting side mini-bond 100. For reference, in the case of the AF track circuit according to the present embodiment, the signal current has an AF (Audio Frequency), and an adjacent track circuit using one of a plurality of different frequencies (e.g., f1, f2, f3, Separate each other.

The signal current transmitted from the transmitter 210 is transmitted to the rail via the coupling unit and the impedance bond of the transmitting mini-bond 100. If the train is not positioned on the rail, the signal current is transmitted to the receiving mini-bond 100 ' . However, if the rail is located on the rail, both rails are short-circuited by the axle of the train, so that the receiving-side mini-bond 100 'can not receive the normal signal current.

The receiver 220 is connected to the receiving-side mini-bond 100 ', and receives the signal current flowing through the rail through the coupling unit and the impedance bond of the receiving-side mini-bond 100'.

The trajectory relay 230 is connected to the receiver 220 and informs whether or not the trajectory circuit is occupied by short-circuiting or opening according to whether the receiver 220 receives a normal signal current.

The controller 240 is linked with the transmitter 210, the receiver 220, the orbital relay 230, the mini-bonds 100 and 100 ', and controls the orbit circuit as a whole.

Hereinafter, a method for controlling a railway track circuit according to the present invention will be described with reference to FIG.

5 is a flowchart of a method of controlling a railway track circuit according to an embodiment of the present invention.

If the train is normally operated and a fault occurs in the track circuit, the controller 240 checks the state of the track circuit (see step S505).

First, the controller 240 checks the transmitter 210 to check whether orbital circuit transmission voltage is normal (refer to step S510). If it is normal, the controller 240 checks the receiver 220 to check whether orbital circuit receiving voltage is normal (See step S515). If there is an abnormality in the orbit circuit transmission voltage, it is instructed to check the facilities of the signal machine room because the possibility of failure of the transmitter 210 is high (refer to step S520). If the orbital circuit transmission voltage and the reception voltage are both normal Since it is not a failure of the field facility (e.g., mini-bond), it is similarly instructed to check the facilities of the signaling machine room (see step S520).

On the other hand, if the transmission voltage of the track circuit is normal but there is an abnormality in the receiving voltage, check the mini-bond because the possibility of failure in the field facility is high.

First, the controller 240 confirms whether or not there is a train in the adjacent track of the track circuit in which a failure occurs for safe driving (refer to step S525). Then, the controller 240 applies a remote transfer command of the receiving-side mini-bond 100 '(see step S530). Then, the transfer switch of the receiving-side mini-bond 100 'is switched by the controller 240 or other means and transferred from the current coupling unit to the spare coupling unit.

Thereafter, the controller 240 confirms whether the transfer state of the receiving-side mini-bond 100 'is normal (refer to step S535), and if not, the receiving-side mini-bond (specifically, the transfer switch) And to confirm the connected communication cable and module (see step S540).

On the other hand, when the system mini-bond state of the receiving-side mini-bond 100 'is normal, the controller 240 confirms whether the state of the track circuit is normal (see step S545). And, if it is normal, the fault is resolved, so it returns to normal control mode.

If the track circuit state is not normal, the controller 240 applies a remote transfer command of the transmitting-side mini-bond 100 (see step S550). Then, the transfer switch of the transmitting-side mini-bond 100 is switched by the controller 240 or other means and is transferred from the current coupling unit to the spare coupling unit.

Thereafter, the controller 240 confirms whether the transmission side mini-bond 100 is in a normal state (refer to step S555). If the transmission side mini-bond 100 is not normal, it is connected to the transmission side mini-bond Instructs to confirm the communication cable and the module (see step S560).

On the other hand, when the system mini-bond state of the transmission side mini-bond 100 is normal, the controller 240 confirms whether the track circuit state is normal (see step S565). And, if it is normal, the fault is resolved, so it returns to normal control mode. However, if the track circuit condition is not normal, the controller 240 directs confirmation of other facilities on site

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that the embodiments are to be considered in all respects as illustrative and not restrictive.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. .

100, 100 ': Mini bond
110: Impedance bond
120, 120 ': coupling unit
130: Transfer switch
210: Transmitter
220: receiver
230: Track Relay
240:

Claims (13)

In a railway track circuit device,
A transmitter for transmitting a signal current to flow the orbit circuit;
A transmitter side mini-bode for transmitting the signal current transmitted from the transmitter to the rail;
A receiving-side mini-bond for sensing a signal current flowing in the rail;
A receiver for receiving a signal current from the receiving mini-bond;
A trajectory relay short-circuited or opened according to whether or not the signal current of the receiver is received; And
And a controller for controlling the track circuit in cooperation with the transmitter, the receiver, and the track relay,
Wherein at least one of the transmitting-side mini-bond and the receiving-side mini-bond includes one impedance bond and a plurality of coupling units and a transfer switch, wherein the one impedance bond is one of the plurality of coupling units Lt; / RTI >
Wherein the plurality of coupling units each include a resonance circuit for a first frequency, a resonance circuit for a second frequency, a capacitor for a signal on the road, and a capacitor for capacitance compensation. The method according to claim 1,
Wherein the impedance bond comprises a primary coil connected to a rail for a railway and a secondary coil for inducing an electromagnetic induction action with the primary coil. delete delete 3. The method according to claim 1 or 2,
And wherein the controller remotely controls the transfer switch. 3. The method according to claim 1 or 2,
Wherein the controller checks the transmission voltage and the reception voltage of the track circuit when a failure occurs in the track circuit, and when the transmission voltage of the track circuit is normal and the reception voltage is abnormal, And remotely transferring at least one of the first and second information. In a mini-bond constituting a railway track circuit,
An impedance bond including a primary coil connected to the rail for the railway and a secondary coil for causing the primary coil and the electromagnetic induction action;
A first coupling unit having a resonance circuit for a first frequency and a resonance circuit for a second frequency;
A second coupling unit having a resonance circuit for the first frequency and a resonance circuit for the second frequency; And
And a change-over switch for selectively connecting the impedance bond and one of the first coupling unit and the second coupling unit,
Wherein the first and second coupling units each comprise a capacitor for a signal on the road and a capacitor for capacitance compensation. 8. The method of claim 7,
Wherein the transfer switch is remotely controlled under the control of a controller connected to a communication cable. delete A method of controlling a railway track circuit,
Checking the transmission voltage and the reception voltage of the track circuit when a fault occurs in the track circuit; And
Wherein the controller commands remote switching of at least one of a receiving mini-bond and a transmitting mini-bond when the transmission voltage of the track circuit is normal and the receiving voltage is abnormal,
Wherein said commanding remote switching comprises:
A step in which the controller instructs remote switching of a receiving-side mini-bond;
Checking whether the state of the track circuit is normal; And
And if the status of the track circuit is abnormal, instructing the controller to perform remote switching of the transmitting mini-bond. 11. The method of claim 10,
Further comprising the step of the controller confirming that the state of the track circuit is normal. delete The method according to claim 10 or 11,
Wherein the step of checking the transmission voltage and the reception voltage of the track circuit confirms the transmission voltage of the track circuit first and confirms the reception voltage when the transmission voltage is normal.

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