KR101004317B1 - Monitoring apparatus of an audio frequency electrical joint circuit and method of the same - Google Patents

Abstract

The present invention relates to an apparatus for monitoring an AF track circuit and a method for monitoring the same, comprising an individual microcomputer for each of a plurality of transmitters and receivers, receiving signals from a receiver, an orbital relay and each connection cable, AF track circuit monitoring device that receives frequency detection signal and DC signal from each individual microcomputer and compares voltage, frequency, and current value of front and rear devices connected with each device to quickly and accurately identify the fault and its location. The purpose is to provide a monitoring method.

Applying the present invention, by extracting the frequency, voltage, current value, DC signal value transmitted through each connection line and the connection device from the microcomputer installed for each position unit by grasping the state of each connection line and the connection device, It has the advantage of being able to quickly and precisely repair the fault because it can identify the fault occurrence, the fault type, and the fault location.

AF track circuit, monitoring PC.

Description

Monitoring device of AFC track circuit and its monitoring method {MONITORING APPARATUS OF AN AUDIO FREQUENCY ELECTRICAL JOINT CIRCUIT AND METHOD OF THE SAME}

The present invention relates to an apparatus for monitoring an AF track circuit and a method for monitoring the same, and more specifically, to construct a separate microcomputer between a plurality of transmitters and receivers, to receive signals from a receiver, an orbital relay and each connection cable, and to transmit a nearby transmitter. AF track circuit that receives voltage and frequency detection signal and DC signal from each individual microcomputer and compares voltage, frequency and current value of each device before and after each device to quickly and accurately identify fault location and location. A monitoring device and a method for monitoring the same.

As is well known, trains such as subways are rapidly spreading as the best means to smoothly deal with the recent traffic problems.

In addition, for the safety of railway operation, various new technologies for railroads and various peripheral facilities have been developed and widely introduced.

Among them, track circuit devices are widely used to find the occupied or non-occupied status of trains on the tracks by installing conductors on each rail. One example of such a track circuit device is shown in FIG. , The transmitter 100 is connected, and the receiver 200 is connected to the terminal of the rail R. The transmitter 100 transmits a predetermined level of frequency (including pulse or AC voltage) through the rail R. It transmits to the receiver 200. At this time, when there is a train on the track, the rails R on both sides are conducted by the wheels of the train, and thus, the lamp LED2 is turned on due to the fall of the track relay 205 of the receiver 200 so that the train is at a certain point. Tells you if you are at

In more detail, the transmitter 100 first transmits a transmitter 102 for generating a signal having a predetermined frequency and both ends of the signal output from the transmitter 102 to both ends of the rail R. FIG. It consists of a transmission cable (110) connecting each, and a matching transformer (101) connected in order to minimize the loss of a signal by matching the impedance between the transmitter 102 and the transmission cable (110), the receiver 200 ) Is connected to the receiving cable 210 connected to each end of the rail (R), a matching transformer 201 for impedance matching connected to the receiving cable 210, and the matching transformer 201. A frequency receiver 202 for receiving a signal, a frequency selector 203 for selecting and outputting a signal having a predetermined frequency among the signals received through the frequency receiver 202, and the frequency selector 203. Output from An amplifier 204 that receives the signal and amplifies and outputs the signal at a predetermined intensity; and an orbital relay 205 that is operated when a signal is output from the amplifier 204 by receiving a separate operating power source (B +); It consists of a lamp LED2 which is turned on when the contact 206 of the relay 205 is in contact.

However, in the conventional track circuit as described above, by checking the lighting state of the lamp (LED) is turned on in accordance with the occupied state of the train to grasp the movement and stop state of the train, an error occurs in the transmission and reception unit or the lamp If it does not work properly there was a problem that can not correctly grasp the state of movement of the train.

In addition, in order to find the fault location, the operator must check the transmitter, receiver, rail, etc. by using a level meter or a voltage meter to check the fault location, which is a task that only an experienced worker can do. This maintenance caused delays in all trains passing through the failed rail, causing confusion.

Therefore, recently, a technology for matching a matching transformer and an impedance provided inside a transmitter and a receiver and comparing the matched impedance has been developed to determine a train occupancy state and a failure of the transmitter and the receiver for a specific section on track.

However, such an insulated track circuit device has a problem that frequency transmission is possible only for short-range transmission, and it is not possible to determine whether the transmitter or the receiver is disconnected only by comparing the impedance, and the cable connected between the transmitter or receiver and the rail (R). There was a problem that the disconnection could not be determined, and it could not be determined whether the tuning unit was broken.

In addition, the conventional technique, which is a technique of fault determination through such frequency detection, is a technique of transmitting an audible frequency through a rail, and various audible frequencies are inserted into the rail as noise, so that the receiver and the transmitter may be determined to be faulty even though they are normal. As a result, a more accurate fault determination device was needed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described prior art, and constitutes individual microcomputers between a plurality of transmitters and receivers, receives signals from receivers, track relays and connection cables, and detects voltage and frequency of adjacent transmitters. AF track circuit monitoring device and its monitoring device that receive signals and DC signals from each microcomputer and compare voltage, frequency, and current values of front and rear devices connected to each device to quickly and accurately identify the fault and its location The purpose is to provide a method.

In order to achieve the above object, according to a preferred embodiment of the present invention, the monitoring PC has a voltage, current, frequency, contact state, pulse signal and A first step of receiving a unique code signal of a device for each signal; A second step of the monitoring PC determining from which device the received data is transmitted through a code or a port check, and extracting standard data previously stored in a database; A third step of the monitoring PC comparing the sensed data with standard data; If the detection data and the standard data match, the device is displayed on the screen that the normal state, and if the detection data and the standard data does not match, the fourth step of outputting the corresponding failure location information and cause information on the screen An AF track circuit monitoring method is provided.

Preferably, the monitoring PC is provided with an AF track circuit monitoring method characterized in that the order of checking each device in the order of a contact point, a track relay, a receiver, a receiving side tuning unit, a transmitting side tuning unit, a transmitter.

Preferably, the third to the fourth process is a process of the monitoring PC checks whether the contact signal of the track relay which is the last stage of the track circuit is normally received; Displaying a normal state of the contact on the screen when the system is in normal operation; If the contact does not operate normally, the monitoring PC comparing the current value applied to the orbital relay configured at the front end of the contact with the standard current value stored in the database; If the current value is normal, displaying, by the monitoring PC, that the orbital relay is normal, and outputting contact fault information on the screen; If the current value applied to the orbital relay is not normal, the monitoring PC detecting frequency and voltage from the receiver and comparing it with a standard value; If an abnormality occurs in the frequency or voltage of the receiver, determining whether the frequency is in the occupied state of the train, and in the case of occupying the train, displaying train occupancy information on the screen; If there is no abnormality in the frequency or voltage of the receiver, the monitoring PC receiving the current value of the receiver and comparing it with a standard value; If there is no abnormality in the current value, determining that the receiver is normal, and determining that the track relay configured at a later stage is a failure; If there is no abnormality in the current value, the monitoring PC determining whether a pulse signal of a receiving side tuning unit provided at the front end is received; If the pulse signal is not received, determining that the monitoring PC has failed in the receiving side tuning unit, and outputting a screen; If a pulse signal is received, determining that the tuning unit operates normally, and determining whether a pulse signal of the calling-side tuning unit is received; If the pulse signal of the calling-side tuning unit is not received, determining that the monitoring PC has a failure of the calling-side tuning unit and outputting a screen; If the pulse signal of the outgoing tuning unit is received, the monitoring PC receiving the voltage and frequency from the transmitter and comparing the standard value pre-stored in the database to determine whether an abnormality has occurred in the transmitter's frequency or voltage; If an abnormality occurs in the frequency and voltage of the transmitter, determining that the transmitter has failed and outputting corresponding information on a screen; If no abnormality occurs in the frequency and voltage of the transmitter, it is determined that the transmitter is normal, and each connection cable is determined to be normal. Is provided.

On the other hand, the present invention includes a first transmitter (8A) for generating a signal having a predetermined frequency; A first receiver 6A for receiving a frequency signal of the first transmitter 8A transmitted via the rail 4; A second transmitter 8B for generating a signal having a predetermined frequency; A second receiver 6B for receiving a frequency signal of the second transmitter 8B transmitted via the rail 4; Each tuning unit connected to both ends of the rail 4 to perform frequency tuning, and connected to the first and second transmitters 8A and 8B and the first and second receivers 6A and 6B to transmit and receive the tuning signal. An AF track circuit composed of (14, 16, 10, 12), disposed between the first transmitter 8A and the second receiver 6B, and the first transmitter 8A and the second receiver 6B. A first microcomputer 22 for receiving a voltage, a current, a frequency signal, a contact operation signal, and a DC signal from each connection cable; Disposed between the second transmitter 8B and the first receiver 6A, the voltage and the current, the frequency signal, the contact operation signal, from the first transmitter 8A and the second receiver 6B and the respective connecting cables; A second microcomputer 24 for receiving a DC signal; Receives voltage, current, frequency signal, contact operation signal and DC signal from the first and second microcomputers 22 and 24, and occupies a train occupancy state of the rail and the first and second transmitters 8A and 8B and the first and second receivers. 6A, 6B, a monitoring device for the AF track circuit is provided, comprising a monitoring PC 20 for determining whether the track relay 26 is broken and whether each connection cable is disconnected.

Preferably, the first and second microcomputers 22 and 24 are contacted with the transmitters 8A and 8B, the tuning units 10, 12, 14 and 16, the transmitters 6A, 6B and the orbital relay 26. A multiport 226 for receiving signals through respective individual ports; A location code generator 222 for generating a location code according to a transmission position of a signal received from each port of the multiport 226; There is provided a monitoring device for the AF track circuit, characterized in that the signal transmission unit 224 for transmitting a detection signal and the location code to the monitoring PC (20).

Preferably, the monitoring PC (20) includes an interface unit for receiving a voltage, frequency, current signal from a plurality of the microcomputer therein; A transmitter operation detection processor which receives voltage, current, and frequency signals of transmitters 8A and 8B installed at each location through the microcomputer to detect the presence of a failure; A connection cable disconnection detection processor for determining whether the connection cable is disconnected by monitoring operation states of devices provided at front and rear ends of the connection cable; A receiver operation monitoring processor that receives voltage, current, and frequency signals from the receivers 6A and 6B and monitors whether the receivers 6A and 6B have failed; An orbital relay operation monitoring processor 48 for receiving voltage, current and frequency signals from the orbital relay 26 to monitor whether the orbital relay 26 is broken; A contact motion monitoring processor for receiving the contact point signal of the track relay 26 and monitoring its operation state; Voltage, frequency, current, pulse signal, and contact signal for each device received from the transmitters 8A, 8B, the tuning units 10, 12, 14, 16, the receivers 6A, 6B, and the orbital relay 26. A database that stores standard signals for each device for comparison and standard signals for failure and train occupancy; Voltage, frequency, current, pulse signal, and contact signal for each device received from the transmitters 8A, 8B, the tuning units 10, 12, 14, 16, the receivers 6A, 6B, and the orbital relay 26. The control unit for controlling the operation of each processor to detect the fault location by checking the voltage, frequency, current or pulse signal and the contact signal of each device in the reverse order of frequency generation in case of abnormal occurrence of the AF track circuit. A monitoring device is provided.

The apparatus for monitoring the AF track circuit and its monitoring method according to the present invention extract the frequency, voltage, current value, and DC signal transmitted through each connection line and the connection device from the microcomputer installed for each position unit and connect with each connection line. By grasping the state of the devices, it is possible to quickly determine whether a failure occurs, the type of failure, and the location of the failure, so that there is an advantage that quick and accurate failure repair is possible.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to drawings.

2 is a view schematically showing a monitoring system of the AF track circuit according to an embodiment of the present invention, Figure 3 is a block diagram showing the configuration of the monitoring system of the AF track circuit according to an embodiment of the present invention; 4 is a block diagram showing the main configuration of the monitoring system of the AF track circuit according to an embodiment of the present invention.

Referring to this, the monitoring system 2 of the AF track circuit according to an embodiment of the present invention configures individual microcomputers between a plurality of transmitters and receivers, and receives the signals of the receiver, the track relay and each connection cable, Receives voltage and frequency detection signals and DC signals from neighboring transmitters from each individual microcomputer and compares the voltage, frequency and current values of each device before and after each device to quickly and accurately identify the fault and its location. .

More specifically, the monitoring system 2 of the AF track circuit according to an embodiment of the present invention includes: a first transmitter 8A (TX-A) for generating a signal having a predetermined frequency; A first receiver 6A (RX-A) for receiving a frequency signal of the first transmitter 8A (TX-A) transmitted via the rail 4; A second transmitter 8B (TX-B) for generating a signal having a predetermined frequency; A second receiver 6B (RX-B) for receiving a frequency signal of the second transmitter 8B (TX-B) transmitted via the rail 4; Each tuning unit connected to both ends of the rail 4 to perform frequency tuning, and connected to the first and second transmitters 8A and 8B and the first and second receivers 6A and 6B to transmit and receive the tuning signal. (14, 16, 10, 12) (TU-A, B) are constructed.

In addition, the AF track circuit monitoring system 2 according to an embodiment of the present invention is disposed between the first transmitter 8A and the second receiver 6B, and the first transmitter 8A and the first receiver. A first microcomputer 22 (M / C) for receiving a voltage, a current, a frequency signal, a contact operation signal, and a DC signal from the two receivers 6B and each connection cable; Disposed between the second transmitter 8B and the first receiver 6A, the voltage and the current, the frequency signal, the contact operation signal, from the first transmitter 8A and the second receiver 6B and the respective connecting cables; A second microcomputer 24 (M / C) receiving the DC signal; Receives voltage, current, frequency signal, contact operation signal and DC signal from the first and second microcomputers 22 and 24, and occupies a train occupancy state of the rail and the first and second transmitters 8A and 8B and the first and second receivers. 6A, 6B, and the monitoring PC 20 for judging whether the track | orbital relay 26 is broken and whether each connection cable is disconnected.

At this time, the first and second transmitters 8A and 8B oscillate and output a signal having an audio frequency between 20 Hz and 20 Hz, and the tuning units 14, 16, 10, 12 and The first and second receivers 6A and 6B are formed with known matching transformers and rectifying circuits therein.

Meanwhile, the monitoring system 2 of the AF track circuit according to an embodiment of the present invention receives a voltage and a current, a frequency signal, a contact operation signal, a DC signal at each position, and indicates whether the train is occupied, occupied position, failure occurs, It is possible to accurately determine the location of the failure and whether the cable is disconnected. For example, voltage is generated when the connection cable is disconnected, but current is not conducted. Not suitable for

Accordingly, the monitoring system 2 of the AF track circuit according to an embodiment of the present invention can determine whether the fault is correct and whether the fault is corrected through comparison of each device in which the complex signal is received and the detection signal is generated.

First, as shown in FIG. 3, the first and second microcomputers 22 and 24 are connected to current signals through connection cables connected to both ends of the resistor R1 configured inside the first and second receivers 6A and 6B. It is configured to further include a current sensing unit 28 that receives the.

That is, the current sensing unit 28 receives a current value applied to both ends of the resistor R1 configured inside the first and second receivers 6A and 6B to determine whether the first and second receivers 6A and 6B are broken. You can judge accurately.

In addition, both ends of the first and second microcomputers 22 and 24 are connected to connection cables connecting the tuning units 10 and 12 and the first and second receivers 6A and 6B to sense frequency and voltage. The first and second microcomputers 22 and 24 are shown to show the configuration and operation of the microcomputer, and not only two microcomputers are configured, but a plurality of microcomputers are configured in the track circuit of the present invention. This is illustrated by two microcomputers in the drawing.

That is, since a plurality of microcomputers (called first and second microcomputers 22 and 24 in the present invention) are respectively connected to the monitoring PC 20, the monitoring PC 20 determines which transmitter has generated a frequency. In addition, information on which receiver should receive a signal at that frequency to drive the tracked relay is preset and monitors whether the operation of each configuration is performed properly.

For example, the audible frequency on the rail 4 is an omni-directional frequency, and since the present invention is an AF track circuit, if a frequency is generated in the second transmitter 8B, the frequency only increases in the direction of the second receiver 6B. It is not transmitted, but is also transmitted to the first receiver 6A. In this case, the first receiver 6A also detects a weak constant frequency and voltage, and compares the detected value with a standard value to determine whether or not a failure occurs.

In particular, the present invention can detect the current conduction for the plurality of receivers 6A, 6B, so that it is possible to more accurately determine whether the receivers 6A, 6B have failed or not through voltage sensing.

In addition, the first and second microcomputers 22 and 24 are connected to both ends of the connection cable between the first and second receivers 6A and 6B and the orbital relay 26, so that the first and second receivers 6A and 6B are connected to each other. A voltage sensing unit 30 is further provided for sensing a voltage between the orbital relays 26, and is connected to both ends of a resistor configured inside the orbital relay 26, and a current sensing unit 34 for sensing current. ) Is further provided.

Therefore, the monitoring system 2 of the AF track circuit according to an embodiment of the present invention can determine whether the correct voltage is detected at the end of the connecting cable from the plurality of receivers 6A and 6B to the track relay 26. The failure of the orbital relay 26 can be determined by current sensing.

On the other hand, the signal receiving unit 36 is connected to the rear end of the orbital relay 26 to receive a contact signal to determine the contact operation state of the orbital relay 26 is further provided.

Through this, in the monitoring system 2 of the AF track circuit according to an embodiment of the present invention, for example, a voltage equal to a standard value is detected between the tuning unit 12 and the second receiver 6B, and the second If the current value equal to the standard value is detected at the receiver 6B, and the contact signal is not detected at the signal receiver 36 in the state that the current is conducted inside the track relay 26, the track relay ( It can be quickly determined by the contact failure of 26).

In addition, a voltage equal to the standard value is detected between the tuning unit 12 and the second receiver 6B, and a current value equal to the standard value is detected by the second receiver 6B, and the If it is confirmed that no current is conducted inside, it is possible to determine that the track relay 26 is a failure, and if the current value equal to the standard value is not detected in the second receiver 6B, the failure of the second receiver 6B is caused. Judging by

On the other hand, the monitoring system 2 of the AF track circuit according to an embodiment of the present invention generates a DC signal to the secondary side line of the tuning unit (14, 16) connected to the first and second transmitters (8A, 8B) A pulse generator 40 is provided, and a DC input unit 42 for transmitting DC signals to the first and second microcomputers 22 and 24 is further provided.

The pulse generator 40 and the DC input unit 42 are provided in the lines of the tuning units 14 and 16 to determine whether the secondary side lines of the tuning units 14 and 16 are broken. . That is, when checking the voltage or impedance applied to the secondary line of the tuning units 14 and 16, the voltage is detected even in the case of disconnection, which is not suitable for determining the disconnection.

On the contrary, the present invention can check whether the tuning unit 14 or 16 is broken.

In addition, the monitoring PC 20 is further provided with a memory (not shown) that stores the normal voltage and current value, the frequency value for each position therein, and compares the detected detection signal and the normal signal stored in the memory for abnormality It is made to judge.

That is, the monitoring PC 20 receives the pulse signals received by the DC input unit 42 from the first and second microcomputers 22 and 24 distributed in a plurality of positions, and compares them with a preset pulse signal. The connection state between the first and second transmitters 8A and 8B and the tuning units 14 and 16 can be grasped.

In addition, a capacitor C1 is formed in a matching transformer line provided in the first and second transmitters 8A and 8B, and the pulse wave loaded on the line in the pulse generator 40 affects the matching transformer. It is removed by the capacitor C1 without reaching.

5 is a block diagram showing the configuration of a monitoring apparatus included in the monitoring system of the AF track circuit according to an embodiment of the present invention, Figure 6 is included in the monitoring system of the AF track circuit according to an embodiment of the present invention A diagram illustrating a monitoring sequence of track circuit devices of the monitored monitoring device.

Referring to this, the monitoring device included in the monitoring system of the AF track circuit according to an embodiment of the present invention means a monitoring PC 20, the monitoring PC 20 has a plurality of the microcomputer 22 therein. Interface unit 40 for receiving a voltage, frequency, and current signal from a) is provided, and receives the voltage, current, frequency signal of the transmitter (8A, 8B) installed in each place via the microcomputer 22 Transmitter motion detection processor 42 for detecting the presence of a failure is provided.

In addition, the monitoring PC 20 is provided with a connection cable disconnection detection processor 44 for monitoring the operation state of the devices provided in the front and rear ends of the connection cable to determine whether the connection cable is disconnected, the receiver ( A receiver operation monitoring processor 46 is provided which receives voltage, current and frequency signals from 6A and 6B and monitors whether the receivers 6A and 6B are broken. The voltage, current and frequency signals from the orbital relay 26 are provided. A track relay operation monitoring processor 48 is provided to monitor whether or not the track relay 26 is broken and receives a contact point signal of the track relay 26 to monitor the operation state. 50 is provided.

In addition, the monitoring PC 20 has a voltage and a frequency for each device received from the transmitters 8A, 8B, the tuning units 10, 12, 14, 16, the receivers 6A, 6B, and the orbital relay 26. And a database 52 in which standard signals for each device for comparing current, pulse signals, and contact signals, and standard signals for failure and train occupancy are stored, and the transmitters 8A and 8B and a tuning unit ( Receive voltage, frequency, current, pulse signal and contact signal for each device received from 10, 12, 14, 16, receiver 6A, 6B and track relay 26, and reverse the frequency generation The controller 54 is configured to drive control each processor to detect a fault location by checking a voltage, frequency, current or pulse signal and a contact signal.

That is, as illustrated in FIG. 6, the controller 54 detects a fault location by checking voltage, frequency, current, or pulse signal and contact signal of each device in the reverse order of frequency generation when an abnormality occurs.

Meanwhile, the microcomputer 22 is provided at a plurality of positions in the monitoring system 2 of the AF track circuit according to the exemplary embodiment of the present invention, and the microcomputer 22 includes a plurality of multiports 226 at the front end. ) And receive signals from the transmitter (8A, 8B) and the tuning unit (10, 12, 14, 16) and the transmitter (6A, 6B), orbital relay (26) and contacts through the respective ports, A position code generator 222 is provided for generating a position code in accordance with the transmission position of the signal received from each port of 226.

That is, the location code generator 222 may determine which transmitter 6A signal and which receiver 8A signal when the monitoring PC 20 receives the signal.

In addition, the microcomputer 22 is provided with a signal transmission unit 224 for transmitting the detection signal and the location code to the monitoring PC (20).

The function and operation of the monitoring apparatus of the AF track circuit according to the embodiment of the present invention having the above configuration will be described in detail with reference to the accompanying drawings.

7 is a flowchart illustrating a schematic signal flow of a monitoring device included in a monitoring system of an AF track circuit according to an embodiment of the present invention.

First, the monitoring PC 20 included in the monitoring system of the AF track circuit according to an embodiment of the present invention is a transmitter (8A, 8B) and the tuning unit (10, 12, 14) from the microcomputer 22 installed in a plurality of locations And 16, the transmitters 6A and 6B and the track relay 26 receive the voltage, current, frequency, contact state, pulse signal, and unique code signal of the device for each signal.

When the data is received, the monitoring PC 20 determines which device the received data is transmitted from through a code or port check, and extracts the standard data previously stored in the database 52.

In addition, the monitoring PC 20 compares the detected data with the standard data, and if the detected data and the standard data match, the corresponding device is displayed on the screen, and if the detected data and the standard data do not match, The fault location (ie faulty device) information and fault cause information are displayed on the screen.

Hereinafter, the monitoring operation will be described in more detail.

8A and 8B are flowcharts illustrating signal flows of a monitoring apparatus included in a monitoring system of an AF track circuit according to an exemplary embodiment of the present invention.

First, the monitoring PC 20 included in the monitoring system of the AF track circuit according to an embodiment of the present invention monitors each device at a predetermined time interval and checks whether a failure occurs and a location of the failure.

That is, the monitoring PC 20 included in the monitoring system of the AF track circuit according to an embodiment of the present invention checks whether the contact signal of the track relay 26, which is the last end of the track circuit, is normally received.

The contact signal is applied to the monitoring PC 20 through the microcomputer 22, and the monitoring PC 20 determines whether the orbital relay 26 is normally operated. In case of normal operation, contact status is displayed on the screen.

On the other hand, if the contact does not operate normally, the monitoring PC 20 checks the track relay 26 configured in front of the contact. That is, to find the cause of the contact not operating normally, the trace back from the signal receiving position to the transmitting position is searched for the cause of the failure and its position.

First, the monitoring PC 20 checks the current value applied to the orbital relay 26 through a cable branched before and after the internal resistance R2 of the orbital relay 26, and stores the standard current value stored in the database 52. Compare with Then, it is checked whether or not the current value is abnormal.

If the current value is normal, the monitoring PC 20 outputs a screen indicating that the track relay 26 is normal, and outputs contact failure information on the screen. Then, the information is transmitted to the machine room so that the field repair personnel can prepare and dispatch the equipment for contact replacement or repair.

On the other hand, it is determined whether the current value applied to the track relay 26 is not normal, that is, the current value is not output or the current value is output but is not the normal current value. If an abnormality occurs in the current value, the monitoring PC 20 detects the frequency and voltage from the receivers 6A and 6B and compares it with the standard value.

If an abnormality occurs in the frequency or voltage of the receiver, it is determined whether or not the frequency of the train occupancy state, and in the case of the train occupancy, the train occupancy information is displayed on the screen.

On the other hand, if there is no abnormality in the frequency or voltage of the receiver, the monitoring PC 20 receives the current value of the receiver and compares it with the standard value. If there is no abnormality in the current value, it is determined that the receiver is normal, and it is determined that the track relay 26 configured at a later stage is a failure.

If there is no abnormality in the current value, the monitoring PC 20 determines whether the pulse signal of the receiving side tuning unit provided at the front end is received.

If no pulse signal is received, the monitoring PC 20 determines that the receiving side tuning unit has failed, and outputs a screen.

On the contrary, if a pulse signal is received, it is determined that the tuning unit operates normally, and it is determined whether the pulse signal of the calling side tuning unit is received. If the pulse signal of the calling side tuning unit is not received, the monitoring PC ( 20) is determined to be a failure of the calling-side tuning unit, and the screen is output.

On the other hand, if the pulse signal of the outgoing side tuning unit is received, the monitoring PC 20 receives the voltage and frequency from the transmitter and compared with the standard value previously stored in the database 52, the abnormality in the frequency or voltage of the transmitter occurs Judge whether or not.

If an abnormality occurs in the frequency and voltage of the transmitter, it is determined that the transmitter has failed and the corresponding information is displayed on the screen. On the other hand, if no abnormality occurs in the frequency and voltage of the transmitter, it is determined that the transmitter is normal, and each connection cable is determined to be normal, and it is determined as a receiver failure.

Meanwhile, the monitoring PC 20 checks each device for each flow and generates a failure signal. When the failure location is determined, the monitoring PC 20 stops checking the devices, and outputs the failure signal and the failure location information on the screen. Equip equipment to repair the fault and have the inspector dispatch quickly.

In addition, the monitoring PC 20 determines that the transmitter, the transmitting side tuning unit has no abnormality, and the receiving side tuning unit, the receiver, and the orbital relay are normal, but if the current signal is not caught, the rail is broken. By checking the signal of each device received from each microcomputer, it is possible to determine the rail break position.

On the other hand, the monitoring apparatus and the monitoring method of the AF track circuit according to an embodiment of the present invention is not limited to the above embodiment, but various modifications can be made within the scope not departing from the technical gist.

1 is a block diagram showing a configuration of a track circuit device according to a conventional embodiment;

2 is a view schematically showing a monitoring system of an AF track circuit according to an embodiment of the present invention;

3 is a block diagram showing the configuration of a monitoring system for the AF track circuit according to an embodiment of the present invention;

4 is a block diagram showing a main configuration of a monitoring system for an AF track circuit according to an embodiment of the present invention;

5 is a block diagram showing the configuration of a monitoring apparatus included in a monitoring system for an AF track circuit according to an embodiment of the present invention;

6 is a diagram illustrating a monitoring sequence of track circuit devices of a monitoring device included in a monitoring system of an AF track circuit according to an embodiment of the present invention;

7 is a flowchart showing a schematic signal flow of a monitoring apparatus included in a monitoring system of an AF track circuit according to an embodiment of the present invention;

8A and 8B are flowcharts illustrating signal flows of a monitoring apparatus included in a monitoring system of an AF track circuit according to an exemplary embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

4: rail, 6A, 6B: first, second receiver,

8A, 8B: 1st and 2nd transmitter, 10, 12, 14, 16: tuning unit,

20: monitoring PC, 22, 24: 1st and 2nd microcomputer.

Claims (6)

A first step in which the monitoring PC receives a voltage, a current, a frequency, a contact state, a pulse signal of a receiver, a tuning unit, a transmitter, an orbital relay, and a unique code signal of a device for each signal from a microcomputer installed at a plurality of locations; A second step of the monitoring PC determining from which device the received data is transmitted through a code or a port check, and extracting standard data previously stored in a database; A third step of the monitoring PC comparing the sensed data with standard data; If the detection data and the standard data match, the device is displayed on the screen that the normal state, and if the detection data and the standard data does not match, the fourth step of outputting the corresponding failure location information and cause information on the screen AF track circuit monitoring method. The method of claim 1, wherein the monitoring PC checks each device in the order of a contact point, a track relay, a receiver, a receiving side tuning unit, a transmitting side tuning unit, and a transmitter. The method of claim 1, wherein the third to fourth processes, Checking, by the monitoring PC, whether the contact signal of the track relay, which is the last end of the track circuit, is normally received; Displaying a normal state of the contact on the screen when the system is in normal operation; If the contact does not operate normally, the monitoring PC comparing the current value applied to the orbital relay configured at the front end of the contact with the standard current value stored in the database; If the current value is normal, displaying, by the monitoring PC, that the orbital relay is normal, and outputting contact fault information on the screen; If the current value applied to the orbital relay is not normal, the monitoring PC detecting frequency and voltage from the receiver and comparing it with a standard value; If an abnormality occurs in the frequency or voltage of the receiver, determining whether the frequency is in the occupied state of the train; If there is no abnormality in the frequency or voltage of the receiver, the monitoring PC receiving the current value of the receiver and comparing it with a standard value; If there is no abnormality in the current value, determining that the receiver is normal, and determining that the track relay configured at a later stage is a failure; If there is no abnormality in the current value, the monitoring PC determining whether a pulse signal of a receiving side tuning unit provided at the front end is received; If the pulse signal is not received, determining that the monitoring PC has a failure of a receiving side tuning unit and outputting a screen; If a pulse signal is received, determining that the tuning unit operates normally, and determining whether a pulse signal of the calling-side tuning unit is received; If the pulse signal of the calling-side tuning unit is not received, determining that the monitoring PC has a failure of the calling-side tuning unit and outputting a screen; If the pulse signal of the outgoing tuning unit is received, the monitoring PC receiving the voltage and frequency from the transmitter and comparing with a standard value previously stored in a database to determine whether an abnormality has occurred in the transmitter's frequency or voltage; If an abnormality occurs in the frequency and voltage of the transmitter, determining that the transmitter has failed and outputting corresponding information on a screen; And if no abnormality occurs in the frequency and voltage of the transmitter, determining that the transmitter is normal, determining that each connection cable is normal, and determining that the receiver has failed. A first transmitter 8A for generating a signal having a predetermined frequency; A first receiver 6A for receiving a frequency signal of the first transmitter 8A transmitted via the rail 4; A second transmitter 8B for generating a signal having a predetermined frequency; A second receiver 6B for receiving a frequency signal of the second transmitter 8B transmitted via the rail 4; Each tuning unit connected to both ends of the rail 4 to perform frequency tuning, and connected to the first and second transmitters 8A and 8B and the first and second receivers 6A and 6B to transmit and receive the tuning signal. In the AF track circuit consisting of (14, 16, 10, 12), Disposed between the first transmitter 8A and the second receiver 6B, the voltage and current, the frequency signal, the contact operation signal, from the first transmitter 8A and the second receiver 6B and respective connection cables; A first microcomputer 22 receiving a DC signal; Disposed between the second transmitter 8B and the first receiver 6A, the voltage and the current, the frequency signal, the contact operation signal, from the first transmitter 8A and the second receiver 6B and the respective connecting cables; A second microcomputer 24 for receiving a DC signal; Receives voltage, current, frequency signal, contact operation signal and DC signal from the first and second microcomputers 22 and 24, and occupies a train occupancy state of the rail and the first and second transmitters 8A and 8B and the first and second receivers. (6A, 6B), a monitoring device for the AF track circuit, characterized in that it consists of a monitoring PC (20) for determining whether the track relay (26) is broken and whether each of the connection cables is disconnected. 5. The first and second microcomputers 22 and 24 of claim 4, wherein the transmitters 8A and 8B, the tuning units 10, 12, 14 and 16, the transmitters 6A and 6B and the orbital relay 26. A multiport 226 for receiving signals through respective ports from and contacts; A location code generator 222 for generating a location code according to a transmission position of a signal received from each port of the multiport 226; The apparatus for monitoring the AF track circuit, characterized in that a signal transmission unit (224) for transmitting a detection signal and a location code to the monitoring PC (20). The apparatus of claim 4, wherein the monitoring PC (20) comprises: an interface unit configured to receive voltage, frequency, and current signals from a plurality of the microcomputers therein; A transmitter operation detection processor which receives voltage, current, and frequency signals of transmitters 8A and 8B installed at each location through the microcomputer to detect the presence of a failure; A connection cable disconnection detection processor for determining whether the connection cable is disconnected by monitoring operation states of devices provided at front and rear ends of the connection cable; A receiver operation monitoring processor that receives voltage, current, and frequency signals from the receivers 6A and 6B and monitors whether the receivers 6A and 6B have failed; An orbital relay operation monitoring processor 48 for receiving voltage, current and frequency signals from the orbital relay 26 to monitor whether the orbital relay 26 is broken; A contact motion monitoring processor for receiving the contact point signal of the track relay 26 and monitoring its operation state; Voltage, frequency, current, pulse signal, and contact signal for each device received from the transmitters 8A, 8B, the tuning units 10, 12, 14, 16, the receivers 6A, 6B, and the orbital relay 26. A database that stores standard signals for each device for comparison and standard signals for failure and train occupancy; Voltage, frequency, current, pulse signal, and contact signal for each device received from the transmitters 8A, 8B, the tuning units 10, 12, 14, 16, the receivers 6A, 6B, and the orbital relay 26. The control unit for controlling the operation of each processor to detect the fault location by checking the voltage, frequency, current or pulse signal and the contact signal of each device in the reverse order of frequency generation in case of abnormal occurrence of the AF track circuit. Monitoring device.

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