KR102535771B1 - Transmitter providing automatic transfer and track circuit device including the same - Google Patents

Abstract

An apparatus for generating a track signal provided to a line through an impedance bond includes a first transmitter for generating a first track signal from input power provided from a power source and a second track signal for generating a second track signal from input power. It may include two transmitters, the first transmitter may include a first relay providing or blocking a first track signal to the impedance bond, and the second transmitter providing or blocking a second track signal to the impedance bond. It may include a second relay that does, and the track circuit device may further include a delay unit for delaying the supply of power to the second relay when the supply of input power is started.

Description

Transmitter providing automatic switching and track circuit device including the same {TRANSMITTER PROVIDING AUTOMATIC TRANSFER AND TRACK CIRCUIT DEVICE INCLUDING THE SAME}

The technical idea of the present invention relates to a track circuit, and in detail, to a transmitter providing automatic switching and a track circuit device including the same.

For safety, trains may run while maintaining a certain interval on the track, and a signaling block system may be employed for this purpose. Blocking divides a station into certain sections, that is, block sections, in order to prevent train collisions or collisions, and prevents two or more trains from running simultaneously in one block section. can refer to doing. In order to detect whether or not the blocked section is occupied by a train, a track circuit method may be employed in which a track circuit is formed by a track and/or a train and signals are transmitted and received through the track circuit. For stable operation of the track circuit, a duplex system may be employed for signal generation and reception. Accordingly, it may be important to perform the transfer of the duplex system at the correct timing and to transmit and receive signals normally to the track circuit even during the transfer.

The technical idea of the present invention is to provide a transmitter that provides accurate and stable switching and a track circuit device including the same.

In order to achieve the above object, according to one aspect of the technical idea of the present invention, an apparatus for generating a track signal provided to a line through an impedance bond is a first track from input power provided from a power source. It may include a first transmitter that generates a signal, a second transmitter that generates a second track signal from input power, and the first transmitter may include a first relay that provides or blocks the first track signal to an impedance bond. The second transmitter may include a second relay that provides or blocks the second track signal to the impedance bond, and the track circuit device delays the supply of power to the second relay when supply of input power is started. It may further include a delay unit that does.

According to an exemplary embodiment of the present invention, the delay unit may include a resistor electrically connected to the second relay.

According to an exemplary embodiment of the present invention, the first transmitter and the second transmitter may have the same dimensions, structure and performance and be removable from the device.

According to an exemplary embodiment of the present invention, the first relay may further include a first output monitor for monitoring the first track signal, and the first output monitor may include an impedance when the first track signal is out of a normal range. The first relay may be controlled to block the first track signal to the bond.

According to an exemplary embodiment of the present invention, the first trajectory signal may include periodic impulses, and the first output monitor may determine at least one of a frequency of the impulse, a magnitude of a positive pulse, and a magnitude of a negative pulse. Based on this, it is possible to determine whether the first trajectory signal is in a normal range.

According to an exemplary embodiment of the present invention, the device may further include a subrack in which the first transmitter and the second transmitter are detachably installed, and the delay unit may be mounted on a substrate fixed to the subrack.

According to an exemplary embodiment of the present invention, it may further include at least one conducting wire connected to the first relay and the second relay, and the first relay and the second relay may include at least one conducting wire so as to be mutually exclusively excited. can be interconnected through

According to an exemplary embodiment of the present invention, a first input switch connected between the power source and the first transmitter, and a second input switch connected between the power source and the second transmitter may be further included, and the first input switch and the second input switch may be further included. The input switch may be normally closed (NC) switches.

According to an exemplary embodiment of the present invention, an apparatus may include a plurality of first transmitters including a first transmitter and a plurality of second transmitters including a second transmitter, and the first input switch comprises: It may be commonly connected to a plurality of first transmitters, and the second input switch may be connected to a plurality of second transmitters in common.

According to one aspect of the technical idea of the present invention, a transmitter for generating a track signal provided to a line through an impedance bond includes a signal generator for generating a first track signal from input power provided from a power source, and a signal generator It may include a relay connected to and an output monitor for monitoring the first track signal, and the output monitor may control the relay to block the first track signal to the impedance bond when the track signal is out of a normal range.

According to an exemplary embodiment of the present invention, the trajectory signal may include periodic impulses, and the output monitor determines the trajectory based on at least one of a frequency of the impulse, a magnitude of a positive pulse, and a magnitude of a negative pulse. Whether the signal is in the normal range can be determined.

According to the transmitter and track circuit device according to an exemplary embodiment of the present invention, switching can occur automatically at precise timing, and signals provided to the track circuit can be stably generated even during switching.

In addition, according to the transmitter and track circuit device according to an exemplary embodiment of the present invention, mutual interference between duplex systems can be eliminated, and accordingly, a signal provided to the track circuit can be accurately and stably generated.

In addition, according to the transmitter and the track circuit device according to the exemplary embodiment of the present invention, the same transmitter can be used independently of the duplex system, and the management and maintenance of the track circuit device can be facilitated due to the modularization of the transmitter, , cost can be reduced.

In addition, according to the transmitter and track circuit device according to an exemplary embodiment of the present invention, it is possible to easily and accurately control switching between duplex systems, thereby facilitating maintenance of the transmitter and the device, and evenly maintaining the transmitters. Through use, the life of the transmitters is extended, thereby extending the life of the track circuit device and reducing the cost.

In addition, according to the transmitter and the track circuit device according to an exemplary embodiment of the present invention, since signals are accurately and stably provided to the track circuit, safe train operation can be guaranteed.

Effects obtainable in the embodiments of the present invention are not limited to the above-mentioned effects, and other effects not mentioned are common in the technical field to which the present invention belongs from the description of the embodiments of the present invention below. It can be clearly derived and understood by those with knowledge. That is, unintended effects according to the practice of the present invention may also be derived by those skilled in the art from the embodiments of the present invention.

1 is a diagram schematically illustrating a track circuit system according to an exemplary embodiment of the present invention.
Fig. 2 is a block diagram showing a track circuit device according to an exemplary embodiment of the present invention.
3 is a timing diagram illustrating an example of operation of a track circuit device according to an exemplary embodiment of the present invention.
4 is a waveform diagram illustrating a trajectory signal according to an exemplary embodiment of the present disclosure.
5 is a timing diagram illustrating an example of operation of a track circuit device according to an exemplary embodiment of the present invention.
Fig. 6 is a block diagram showing a track circuit device according to an exemplary embodiment of the present invention.
7 is a timing diagram illustrating an example of operation of a track circuit device according to an exemplary embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Since the present invention can have various changes and various forms, specific embodiments are illustrated in the drawings and described in detail. However, it should be understood that this is not intended to limit the present invention to the specific disclosed form, and includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numbers are used for like elements. In the accompanying drawings, the dimensions of the structures are shown enlarged or reduced than actual for clarity of the present invention.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Expressions in the singular number include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, interpreted in an ideal or excessively formal meaning. It doesn't work.

In the drawings and descriptions below, a component represented or described as a block may be a hardware block or a software block. For example, each of the components may be an independent hardware block that exchanges signals with each other, or may be a software block executed by at least one processor.

1 is a schematic diagram of a track circuit system 100 according to an exemplary embodiment of the present invention. Specifically, FIG. 1 shows the track circuit system 100 in a state where the train 140 occupies the BS.

Referring to FIG. 1 , the track circuit of the track circuit system 100 may be formed in one occluded section (BS). In the blocking section BS, the line R may be insulated from the lines of adjacent blocking sections by the first to fourth insulating points 131 to 134 disposed at both ends. A first impedance bond 121 may be disposed adjacent to the first and second insulating locations 131 and 132 , and a second impedance bond 122 adjacent to the third and fourth insulating locations 133 and 134 . can be placed. Similarly, the third and fourth impedance bonds 123 and 124 may be respectively disposed in adjacent occlusion sections of the occlusion section BS. In some embodiments, although not shown in FIG. 1 , a return line may be connected to the impedance bond, and a catenary current flowing through the catenary line and the train 140 may be returned to the overhead branch line through the return line.

The transmission-side track circuit 110 may generate a transmission signal TX and provide the transmission signal TX to the first impedance bond 121 . For example, the transmission-side track circuit 110 may generate the transmission signal TX based on input power provided from an external power source. In some embodiments, as described below with reference to FIG. 5 , the transmit signal TX may include periodic impulses, and thus the orbit circuit and orbit circuit system 100 may include an impulse orbit circuit. and an impulse trajectory circuit system, respectively. In this specification, the transmit-side track circuit 110 may be referred to as a transmit-side track circuit device or simply as a device. Also, in this specification, the transmission signal (TX) may be referred to as a trajectory signal.

For stable generation of the transmission signal TX, the transmission-side trajectory circuit 110 may be implemented as a duplex system. For example, as shown in FIG. 1 , the transmission-side trajectory circuit 110 may include a first transmitter 111 and a second transmitter 112 performing the same operation, and the first transmitter 111 ) and the transmission signal TX may be generated by one of the second transmitter 112 . Transfer can refer to a dual system, i.e., a transition between a first (or main) and a second (or paternal) system, where an error occurs in one of the first and second systems, the first and It can be caused by various causes, such as maintenance/repair of one of the second systems.

As will be described later with reference to the drawings, according to an exemplary embodiment of the present disclosure, each of the first transmitter 111 and the second transmitter 112 may include a relay outputting or blocking the transmission signal TX, , Relays included in the first transmitter 111 and the second transmitter 112 may be connected by the transmission-side track circuit 110 so that they are mutually exclusively excited (energized). Accordingly, the transfer can occur automatically at the correct timing, and the transmission signal TX can be stably generated even during the transfer. In addition, the relays included in the first transmitter 111 and the second transmitter 112 can be controlled by the transmission-side trajectory circuit 110 to receive power at different timings, and thus mutual interference between duplex systems is eliminated. It can be. In addition, the first transmitter 111 and the second transmitter 112 may have the same structure independently of the duplex system, and accordingly, the management and maintenance of the transmission-side track circuit 110 and/or the track circuit system 100 Maintenance can be facilitated and costs can be reduced. In addition, switching between duplex systems in the transmission-side track circuit 110 can be easily and accurately controlled, and accordingly, maintenance of the transmission-side track circuit 110 is facilitated, as well as equal use of the transmitters. By extending the lifespan, the lifespan of the transmission-side track circuit 110 can be extended and costs can be reduced. As a result, the transmission signal (TX) can be stably generated, and safe train operation can be guaranteed.

The first impedance bond 121 may receive the transmission signal TX from the transmission-side track circuit 110, and a signal resulting from the transmission signal TX may be induced in the line R. In some embodiments, first impedance bond 121 may be referred to as a transmit impedance bond. As shown in FIG. 1, when the blockage section BS is occupied by the train 140, the current by the signal induced from the first impedance bond 121 passes through the axle 141 of the train 140. Thus, it may flow to the first impedance bond 121 again. On the other hand, differently from that shown in FIG. 1, when the blockage section BS is not occupied by the train 140, the current by the signal induced from the first impedance bond 121 is applied to the second impedance bond ( 122) and flow back to the first impedance bond 121. In this way, different track circuits may be formed depending on whether the train 140 occupies the occluded section BS, and the train may be detected based on changes in signals caused by the different track circuits.

The second impedance bond 122 may provide a signal derived from a signal applied to the line R, that is, a received signal RX to the receiving side track circuit 150 . In some embodiments, second impedance bond 122 may be referred to as a receiving impedance bond. Also, in some embodiments, although not shown in FIG. 1 , a matching capacitor connected between both conductor lines to which the second impedance bond 122 and the receiving-side track circuit 150 are connected may be disposed. As shown in FIG. 1, when the blockage section BS is occupied by the train 140, the second impedance bond 122 is connected to the transmission signal TX due to the axle 141 of the train 140. A received signal RX that does not correspond (eg, does not include an impulse) may be provided to the receiving-side trajectory circuit 150 . On the other hand, differently from that shown in FIG. 1, when the block section BS is not occupied by the train 140, the second impedance bond 122 corresponds to the transmission signal TX (eg, The received signal (RX) including an impulse may be provided to the receiving-side trajectory circuit 150.

The receiving side track circuit 150 may receive the reception signal RX from the second impedance bond 122 . In some embodiments, receive-side track circuitry 150 may include a receiver and a track relay. The receiver may receive the reception signal RX from the second impedance bond 122 and may generate a relay signal from the reception signal RX and provide the relay signal to the track relay. The receiver may generate a relay signal in response to a received signal RX corresponding to the transmitted signal TX (eg, including an impulse), and thus the track relay may be excited. On the other hand, the receiver may generate a relay signal in response to a de-energized (eg, not including an impulse) received signal RX, and thus the track relay may fall. Signals, etc. may be controlled according to the excitation or fall of the track relay, and whether or not the train 140 occupies the blocked section (BS) in the station can be identified. Identifying the occupancy of the train 140 for the BS may be referred to as detection of the train 140 . In some embodiments, the received signal RX may be used to detect train 140 as well as monitor track circuitry. In this specification, the receiving-side track circuit 150 may be referred to as a receiving-side track circuit device. In some embodiments, the transmit-side orbit circuitry 110 and the receive-side orbit circuitry 150 may be included in one device, i.e., an orbital circuit device.

2 is a block diagram showing a track circuit device 200 according to an exemplary embodiment of the present invention. Specifically, the block diagram in FIG. 2 shows a track circuit device 200 as a transmission side track circuit together with a power source 201 and an impedance bond 205 . As shown in FIG. 2 , the track circuit device 200 may include a first transmitter 210 , a second transmitter 220 , at least one conductive wire 230 and a delay unit 240 .

In some embodiments, the first transmitter 210 and the second transmitter 220 may be the same. For example, the first transmitter 210 and the second transmitter 220 may have the same dimensions, structure and performance, and may be detachable from the track circuit device 200 . Accordingly, the transmitter included in the track circuit device 200 can be modularized, and the same transmitter can be used independently in the duplex system. In some embodiments, the track circuit device 200 may include a subrack in which a transmitter is detachably installed. As shown in FIG. 2 , the first transmitter 210 may include a first power supply unit 211, a first impulse generator 212, a first relay 213 and a first output monitor 214. And, the second transmitter 220 may include a second power supply unit 221, a second impulse generator 222, a second relay 223 and a second output monitor 224. Hereinafter, overlapping descriptions of the first transmitter 210 and the second transmitter 220 will be omitted.

The first power supply unit 211 may receive input power from an external power source 201 of the track circuit device 200 and generate a first track signal TS1. For example, the power supply 201 may provide an alternating current (AC) voltage (eg, 220Vrms, 60Hz) to the track circuit device 200, and the first power supply unit 211 may supply a first voltage (V1) from the AC voltage. ) can be created. In some embodiments, the first power supply unit 211 may generate the DC voltage, the first voltage V1 , by converting and boosting the AC voltage.

The first impulse generating unit 212 may generate the first trajectory signal TS1 based on the first voltage V1 provided from the first power supply unit 211 . The first trajectory signal TS1 may include periodic impulses. In some embodiments, the first impulse generator 212 may generate the first trajectory signal TS1 by selectively outputting the first voltage V1, which is a DC voltage, and includes a switch, an oscillator, and the like for this purpose. can do.

The first relay 213 (or the first relay) may provide or block the first trajectory signal TS1 to the impedance bond. In some embodiments, the first relay 213 may provide the first trajectory signal TS1 to the impedance bond 205 when excited, and may block the first trajectory signal TS1 when falling. As shown in FIG. 2, the first relay 213 may receive input power from an external power source 201, and when the input power is supplied from the power source 201, the first relay 213 may be excited. there is.

The first output monitor 214 may monitor the first trajectory signal TS1. For example, the first output monitor 214 may determine whether the first track signal TS1 is within a normal range, and if the first track signal TS1 is out of the normal range, the first relay 213 ) can be controlled to fall. In some embodiments, the first output monitor 214 may include a comparator, processor, count, etc. to monitor the first trajectory signal TS1. An example of the operation of the first output monitor 214 will be described later with reference to FIG. 4 .

In some embodiments, the first transmitter 210 may include a communication module, and a monitoring result (eg, a measurement value) of the output monitor 214 is transmitted to the first transmitter 210 or the orbital circuit device 200. can be transmitted externally. For example, the communication module may transmit a monitoring result through a wired channel such as Ethernet or a wireless channel such as long term evolution (LTE), 5th generation (5G), ZigBee, TV white space (TVWS), and the like. . In some embodiments, a display module may be included, and the display module may externally display a monitoring result of the first output monitor 214 . For example, the display module may include a liquid crystal display (LCD), a light emitting diode (LED), a 7-segment display, and the like.

The second power supply unit 221 may receive input power from the power source 201 of the track circuit device 200 and generate a second track signal TS2. For example, the second power supply unit 221 may generate the second voltage V2 from the AC voltage provided by the power supply 201 . In some embodiments, the second power supply unit 221 may generate the second voltage V2 that is a DC voltage by converting and boosting the AC voltage.

The second impulse generating unit 222 may generate the second trajectory signal TS2 based on the second voltage V2 provided from the second power supply unit 221 . The second trajectory signal TS2 may include periodic impulses. In some embodiments, the second impulse generator 222 may generate the second trajectory signal TS2 by selectively outputting the second voltage V2, which is a DC voltage, and includes a switch, an oscillator, and the like for this purpose. can do.

The second relay 223 (or second relay) may provide or block the second trajectory signal TS2 to the impedance bond. In some embodiments, the second relay 223 may provide the second trajectory signal TS2 to the impedance bond 205 when excited, and may block the second trajectory signal TS2 when falling. As shown in FIG. 2, the second relay 223 may receive input power from an external power source 201, and when the input power is supplied from the power source 201, the second relay 223 may be excited. there is.

The second output monitor 224 may monitor the second trajectory signal TS2. For example, the second output monitor 224 may determine whether the second track signal TS2 is within a normal range, and if the second track signal TS2 is out of the normal range, the second relay 223 ) can be controlled to fall. In some embodiments, the second output monitor 224 may include a comparator, processor, count, etc. to monitor the second trajectory signal TS2. An example of the operation of the second output monitor 224 will be described later with reference to FIG. 4 .

The first relay 213 and the second relay 223 may be mutually exclusive. For example, when the first relay 213 is energized, the second relay 223 may drop, and when the second relay 223 is energized, the first relay 213 may drop. To this end, the track circuit device 200 may include at least one wire 230 connecting the first relay 213 and the second relay 223 . Each of the first relay 213 and the second relay 223 may include a plurality of contacts interlocked with one coil, and at least one wire 230 is the first relay 213 and the second relay 223 ) can be connected to a plurality of contacts so that they are mutually exclusively excited. For example, when the first relay 213 is excited, the voltage applied to the coil of the second relay 223 is cut off and when the second relay 223 is excited, the voltage applied to the coil of the first relay 213 Contact points of the first relay 213 and the second relay 223 and at least one conductive wire 230 may form a feedback circuit so that the voltage is cut off. In some embodiments, at least one conductive wire 230 may be formed on a substrate fixed to a subrack of the track circuit device 200, for example, a printed circuit board (PCB).

The delay unit 240 may delay supply of power provided to the second relay 223 . For example, when the track circuit device 200 is connected to the power source 201, supply of input power to the first transmitter 210 and the second transmitter 220 may be initiated. Accordingly, the first voltage V1 and the first track signal TS1 can be generated by the first transmitter 210, while the second voltage V2 and the second track signal ( TS2) can be created. Unlike that shown in FIG. 2, when the delay unit 240 is omitted in the track circuit device 200, the first relay 213 and the second relay 223 may be simultaneously excited, and thus at least one An unpredictable or undesirable state, such as a state in which both the first relay 213 and the second relay 223 fall, may occur due to the lead wire 230 of the, and as a result, the transmission signal TX is normally impedance Bond 205 may not be provided.

The delay unit 240 may delay the input power provided to the second relay 223, and thus a phenomenon in which the first transmitter 210 and the second transmitter 220 mutually interfere when the power source 201 is connected can be prevented In some embodiments, the delay unit 240 may include at least one resistor, and the at least one resistor may be mounted on a substrate fixed to a subrack of the track circuit device 200 . An operation in which interference between the first transmitter 210 and the second transmitter 220 is prevented by the delay unit 240 will be described later with reference to FIG. 3 .

3 is a timing diagram illustrating an example of operation of a track circuit device according to an exemplary embodiment of the present invention. Specifically, the timing diagram of FIG. 3 shows signals of the track circuit device 200 over time when supply of input power to the track circuit device 200 of FIG. 2 starts. In the following, FIG. 3 will be described with reference to FIG. 2 .

Referring to FIG. 3 , supply of input power to the track circuit device 200 may be started at time t1. Accordingly, the first power supply unit 211 and the second power supply unit 221 may start generating the first voltage V1 and the second voltage V2. In addition, the first relay 213 may transition from the falling state (D) to the excited state (E) due to the input power. On the other hand, the second relay 223 may delay reception of the input power due to the delay unit 240, and thus maintain the falling state (D). In addition, the second relay 223 may maintain the falling state (D) due to the first relay 213 transitioned to the at least one conductive wire 230 and the excitation state (E).

At time t2, input power may be supplied to the second relay 223. For example, as shown in FIG. 3, the delay time (DLY) from the time t1 when the input power is supplied to the first relay 213 by the delay unit 240 at the time t2 The second relay (223 ) may be supplied with input power. Despite the input power supplied to the second relay 223, the second relay 223 may be maintained in the falling state (D) by the first relay 213 transitioned to the excited state (E) in advance. As a result, simultaneous excitation of the first relay 213 and the second relay 223 can be prevented, and interference between the first transmitter 210 and the second transmitter 220 can be prevented.

At time t3, the first voltage V1 and the second voltage V2 may reach rated levels. For example, the first power supply unit 211 and the second power supply unit 221 may generate a DC voltage from an AC voltage as input power, and at time t3, the first voltage V1 and the second voltage V2 of the rated level ) can be created respectively. For convenience of illustration, the first voltage V1 and the second voltage V2 are shown as gradually increasing from time t1 to time t3, but in some embodiments, the first voltage V1 and the second voltage ( V2) may vary from time t1 to time t3 differently from that shown in FIG. 3 . As shown in FIG. 3 , after time t3, the first impulse generator 212 may generate a first track signal TS1, and the second impulse generator 222 may generate a second track signal TS2. can create By the excited first relay 213 and the dropped second relay 223, as shown in FIG. 3, the first track signal TS1 is output from the track circuit device 200 as a transmission signal TX. It can be.

4 is a waveform diagram illustrating a trajectory signal according to an exemplary embodiment of the present disclosure. Specifically, the waveform diagram of FIG. 4 shows the first trajectory signal TS1 generated by the first impulse generator 212 of FIG. 2 . In some embodiments, the second track signal TS2 and the transmission signal TX of FIG. 2 may also be the same as the first track signal TS1 of FIG. 4 . In the following, FIG. 4 will be described with reference to FIG. 2 .

Referring to FIG. 4 , the first trajectory signal TS1 may have a positive pulse PP and a negative pulse NP following the positive pulse PP at every period T. In some embodiments, the positive pulse PP may have a peak value of several hundred volts (eg, 500V), and the negative pulse NP may have a peak value of several hundred volts (eg, about 100V). . In some embodiments, the period T may be tens to hundreds of ms. In this specification, the positive pulse (PP) and the negative pulse (NP) may be referred to as a primary pulse and secondary pulse, respectively.

As described above with reference to FIG. 2, the first output monitor 214 may monitor the first track signal TS1, and when the first track signal TS1 is out of the normal range, the first relay 213 can be controlled to fall. For example, the first output monitor 214 may determine whether the period T of the pulse is within an error range (eg, ±30%) from a reference value (eg, 1/3 sec). In addition, the first output monitor 214 may determine whether the magnitude (ie, peak value) of the positive pulse PP is within an error range (eg, ±10%) from a reference value (eg, 500V), , and/or whether the magnitude (ie, peak value) of the negative pulse NP is within an error range (eg, ±10%) from a reference value (eg, 100V). The second output monitor 224 may also monitor the second trajectory signal TS2 similar to the above description.

5 is a timing diagram illustrating an example of operation of a track circuit device according to an exemplary embodiment of the present invention. Specifically, the timing diagram of FIG. 5 shows the signals of the track circuit device 200 at the time of switching that occurs when the first track signal TS1 is out of the normal range in the track circuit device 200 of FIG. 2 over time. indicate In the following, FIG. 5 will be described with reference to FIG. 2 .

Referring to FIG. 5 , before time t4 , the first impulse generator 212 may generate a first track signal TS1 and the second impulse generator 222 may generate a second track signal. In addition, the first relay 213 may be in an excitation state (E), and the second relay 223 may be in a falling state (D). Accordingly, as shown in FIG. 5 , the first trajectory signal TS1 may be output as a transmission signal TX.

At time t4, the peak value of the positive pulse PP of the first trajectory signal TS1 may decrease. For example, due to the first power source 211, the first impulse generator 212, other components of the first transmitter 210, or external circumstances of the first transmitter 210, the first trajectory signal ( The peak value of the positive pulse PP of TS1) may decrease. The first output monitor 214 may monitor the first track signal TS1 and detect that the peak value of the positive pulse PP of the first track signal TS1 is out of a normal range.

At time t5, the first relay 213 may transition from the excitation state (E) to the falling state (D). As described above, the first output monitor 214 may detect that the first trajectory signal TS1 is out of the normal range, and accordingly, the first relay 213 may be controlled to drop. Accordingly, the output of the first trajectory signal TS1 may be blocked. As described above with reference to FIG. 2, since the first relay 213 and the second relay 223 are connected by at least one wire 230 so as to be mutually exclusively excited, the second relay 223 is 1 In response to the fall of the relay 213, it is possible to transition from the falling state (D) to the excited state (E). Accordingly, as shown in FIG. 5 , the second trajectory signal TS2 may be output as a transmission signal TX.

Fig. 6 is a block diagram showing a track circuit device 600 according to an exemplary embodiment of the present invention. Specifically, the block diagram in FIG. 6 shows a track circuit device 600 together with a power source 601 as a transmission-side track circuit.

In some embodiments, orbital circuit arrangement 600 may include multiple transmitters for multiple occlusion intervals. For example, as shown in FIG. 6 , the track circuit device 600 may include n first transmitters 631_1 to 631_n respectively corresponding to the first to n occlusion intervals as a first system. and n second transmitters 632_1 to 632_n respectively corresponding to the first to n occlusion intervals as the second system (n is an integer greater than 1). In some embodiments, as described above with reference to the drawings, each of the n first transmitters 631_1 to 631_n and the n second transmitters 632_1 to 632_n may be identical to each other, and the track circuit device ( 600) can be detachably installed. In addition, in some embodiments, as described above with reference to the drawings, the track circuit device 600 delays the power provided to the n second relays included in the n second transmitters 632_1 to 632_n. A delay unit may be included to do so. In addition, in some embodiments, as described above with reference to the drawings, the track circuit device 600 includes n first transmitters 612_1 to 612_n and n second transmitters 632_1 to 632_n, A plurality of conductor wires 640 connecting the first relay and the second relay included in the first transmitter (eg, 631_2) and the second transmitter (eg, 632_2) corresponding to the same occlusion section to be mutually exclusively excited. can include

The track circuit device 600 may include a first input switch 610 and a second input switch 620 for switching between the first system and the second system. As shown in FIG. 6 , the first input switch 610 may be connected between the power source 601 and n first transmitters 631_1 to 631_n, and the second input switch 620 may be connected to the power source 601 and n second transmitters 632_1 to 632_n. As shown in FIG. 6 , the first input switch 610 and the second input switch 620 may be normally closed (NC) switches. Accordingly, the first input switch 610 may connect the power source 601 to n first transmitters 631_1 to 631_n in a normal state, and the second input switch 620 may connect the power source 601 in a normal state. may be connected to n second transmitters 632_1 to 632_n. In some embodiments, the first input switch 610 and the second input switch 620 may be multi-path push button switches.

For redundant transfer, the first input switch 610 or the second input switch 620 may be controlled. For example, the first system, that is, the first input switch 610 is pushed while the n first trajectory signals generated by the n first transmitters 631_1 to 631_n are provided to the n block intervals. In this case, the supply of input power to the n first transmitters 631_1 to 631_n may be cut off. Accordingly, n first relays included in each of the n first transmitters 631_1 to 631_n may transition from an excitation state to a falling state, and as a result, each of the n second transmitters 632_1 to 632_n The included n second relays may transition from the falling state to the excitation state, and n second trajectory signals may be provided to the n occluded sections. Similarly, when the second input switch 620 is pushed while the second system, that is, the n second trajectory signals generated by the n second transmitters 632_1 to 632_n are provided to the n occluded sections. , supply of input power to n second transmitters 632_1 to 632_n may be cut off. Accordingly, the n number of second relays respectively included in the n number of second transmitters 632_1 to 632_n may transition from the excitation state to the falling state, and as a result, each of the n number of first transmitters 631_1 to 631_n The n number of first relays included may transition from the falling state to the excitation state, and n first trajectory signals may be provided to the n occluded sections.

As described above, the dual system transfer can be easily performed by the first input switch 610 and the second input switch 620, and accordingly, management of the track circuit device 600 can be facilitated. For example, when replacement or maintenance of a transmitter is required, switching can be easily performed through the first input switch 610 or the second input switch 620 . In addition, by performing switching at regular intervals through the first input switch 610 or the second input switch 620, n first transmitters 631_1 to 631_n and n second transmitters 632_1 to 632_n They can be equally used, and thus the lifetimes of the n first transmitters 631_1 to 631_n and the n second transmitters 632_1 to 632_n can be extended.

7 is a timing diagram illustrating an example of operation of a track circuit device according to an exemplary embodiment of the present invention. Specifically, the timing diagram of FIG. 7 shows signals of the track circuit device 600 according to the lapse of time during a transfer occurring by an input switch in the track circuit device 600 of FIG. 6 . For convenience of illustration, one first relay and one second relay are shown in FIG. 7 . Hereinafter, it is assumed that the first relay of FIG. 7 is included in one of the n first transmitters 631_1 to 631_n of FIG. 6, and the second relay is included in one of the n second transmitters 632_1 to 632_n of FIG. ), and FIG. 7 will be described with reference to FIG. 6 .

Referring to FIG. 7, before time t6, the first input switch 610 and the second input switch 620 may be in a closed state, and the first relay may be in an excited state (E), The second relay may be in a falling state (D). Accordingly, the first trajectory signal TS1 may be output as the transmission signal TX.

From time t6 to time t7, the first input switch 610 may be opened (eg, by an administrator of the track circuit device 600). The input power supplied to the first relay may be cut off by the open first input switch 610, and accordingly, as shown in FIG. 7, the first relay moves from the excitation state (E) to the falling state (D). can be transitioned to The second relay can transition from the falling state (D) to the excited state (E) due to the first relay in the falling state (D), and accordingly, the second trajectory signal (TS2) is output as the transmission signal (TX). It can be.

From time t8 to time t9 , the second input switch 620 may be opened (eg by an administrator of the track circuit device 600 ). The input power supplied to the second relay can be cut off by the open second input switch 620, and accordingly, as shown in FIG. 7, the second relay moves from the excitation state (E) to the falling state (D). can be transitioned to The first relay can transition from the falling state (D) to the excited state (E) due to the second relay in the falling state (D), and accordingly, the first trajectory signal (TS1) is output as the transmission signal (TX). It can be.

As above, exemplary embodiments have been disclosed in the drawings and specifications. Although the embodiments have been described using specific terms in this specification, they are only used for the purpose of explaining the technical idea of the present invention, and are not used to limit the scope of the present invention described in the claims or limiting meaning. . Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (11)

An apparatus for generating a track signal provided to a line through an impedance bond,
a first transmitter configured to generate a first orbital signal from input power provided from a power source; and
a second transmitter configured to generate a second orbital signal from the input power;
the first transmitter includes a first relay configured to provide or block the first track signal to the impedance bond;
the second transmitter includes a second relay configured to provide or block the second track signal to the impedance bond;
The device further includes a delay unit configured to delay the input power and supply it to the second relay,
The first relay is configured to receive the input power from the power source,
The second relay is configured to receive the delayed input power from the delay unit. The method of claim 1,
The delay unit, characterized in that it comprises a resistor electrically connected to the second relay. The method of claim 1,
wherein the first transmitter and the second transmitter have the same dimensions, structure and performance and are removable from the apparatus. The method of claim 3,
The first relay further comprises a first output monitor configured to monitor the first trajectory signal;
wherein the first output monitor is configured to control the first relay to cut off the first track signal to the impedance bond when the first track signal is out of a normal range. The method of claim 4,
The first trajectory signal includes periodic impulses,
wherein the first output monitor is configured to determine whether the first trajectory signal is in a normal range based on at least one of a frequency of the impulse, a magnitude of a positive pulse, and a magnitude of a negative pulse. . The method of claim 3,
The device further includes a subrack in which the first transmitter and the second transmitter are detachably installed,
The delay unit is mounted on a substrate fixed to the sub-rack. The method of claim 1,
Further comprising at least one wire connected to the first relay and the second relay,
The first relay and the second relay are connected to each other through the at least one conductor so that they are mutually exclusively excited. The method of claim 7,
a first input switch connected between the power source and the first transmitter; and
Further comprising a second input switch connected between the power source and the second transmitter,
The first input switch and the second input switch are normally closed (NC) switches. The method of claim 8,
a plurality of first transmitters including the first transmitter; and
A plurality of second transmitters including the second transmitter;
The first input switch is commonly connected to the plurality of first transmitters,
The second input switch is connected to the plurality of second transmitters in common. delete delete

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