KR100885425B1 - Monitoring system for point machine and methods thereof - Google Patents

Abstract

A system and a method for monitoring a railway switch are provided to read display information of a railway switch in maintenance or failure of the railway switch by using simple operational buttons without additional sensors. A control unit(310) drives a railway switch(400). The control unit controls the direction of the railway switch. A monitoring unit(320) is connected between the control unit and at least one railway switch. The monitoring unit displays the voltage applied to respective unit of the railway switch and the voltages at normal time and operational time. The monitoring unit includes an exclusive OR circuit and a NOR circuit. The NOR circuit is connected to the exclusive OR circuit. The monitoring unit performs an interlock function as to the railway switch through the exclusive OR circuit. The monitoring unit outputs a voltage measurement as digital data through the NOR circuit.

Description

MONITORING SYSTEM FOR POINT MACHINE AND METHODS THEREOF}

The present invention relates to a monitoring system and a monitoring method for a line changer, and more specifically, it is possible to immediately determine whether there is an abnormality in each portion of the line changer by measuring the voltage of each portion of the line changer without a separate sensor device, and a failure occurs or is maintained. The present invention relates to a monitoring system and a monitoring method for a track changer that can promptly follow up in repair.

In general, the track changer is an important device that determines the course of the train by installing at the point where the track diverges or crosses the plane. The track control of the train uses the control command transmitted by the control unit to control each station. It is transmitted to the interlocking device, and this control command is transmitted to the line changer to change the line.

The line changer drives the turnout in response to a control command, and when the turnout is correctly converted and determined, the linkage device informs the train that the signal has been displayed.

Since the track changer is installed in close proximity to the turnout, it is installed in a poor environment such as being shocked every time the train passes, so there is a possibility that various problems may occur from time to time and should be continuously maintained for maintenance. .

Until now, managers have been progressing in the way of recognizing and controlling the problems in the field that may occur depending on their own rules of thumb. come.

However, if the generation change of managers is being promoted rapidly these days, the majority of inexperienced managers are not able to learn the correct adjustment method properly, so the maintenance and inspection of the track switching machine cannot be done correctly and the possibility of large accidents is increasing. to be.

Therefore, the existing track switch control method has a problem that a large train accident occurs because a manager who is inexperienced cannot recognize this properly when a problem occurs in the track switch during the switchover process.

Accordingly, as shown in FIG. 1, the maintenance personnel inspected the abnormality using the tester at the measuring point, but this could cause the secondary failure by deforming the elasticity of the wire connection material when using the tester lead rods, check and repair Each time a maintenance worker had to check with this tester every day, there was a problem that it took a lot of time and could not take prompt action.

In order to solve this problem, the sensor and the microprocessor were used to detect the close and locked state by checking whether the tight state is fixed, but this method is caused by the vibration or noise generated when the sensor installed along the rail passes through the train. There was a high possibility of malfunction, and it was difficult to monitor remotely due to instability of communication conditions.

In addition, a sensor is mounted on each part of the line changer, and connected to the sensor to read data sensed by the sensor to determine whether there is an abnormality of the line changer, but this compares the measurement data of the line changer with preset data. As a result, the monitoring system was implemented so that the maintenance personnel could repair it according to the measured result, but this also affects the reliability by causing problems such as malfunction of various sensors installed in the line side and poor communication status. It was not solved.

The present invention has been made to solve the problems of the prior art, the main object of the present invention does not need to install a separate sensor on the outer line side, the state of the line switcher by implementing an interlocking logic in parallel with the control unit of the line switcher Its purpose is to provide a monitoring system and monitoring method for a line changer so that maintenance personnel can quickly determine and take action on grounding and disconnection without additional measurement. .

Another object of the present invention is to provide a monitoring system and a monitoring method for a line changer to prevent interfacing due to a malfunction by setting interlocks between the line changers.

In order to achieve the above object, the monitoring system and the monitoring method of the line switcher of the present invention, in the monitoring system of the line switcher comprising a control unit, the control unit and the connection unit for transmitting and receiving information between the control unit and the control unit. The control unit may include: control means for driving the line changer by applying power to the line changer and controlling a direction of the line changer; And monitoring means connected to each other of the control means and at least one of the line changers and configured to measure and display a voltage applied to each part of the line changer and a voltage generated during normal and operation of each part of the line changer. The monitoring means includes an exclusive logic sum and a negative logic sum circuit connected to the exclusive logic sum, and performs an interlock function for the line switcher through the exclusive logic sum, and measures the voltage through the negative logic sum. Achieved by expressing the value as digital data.
In this case, the linking unit, an interface computer for transmitting a control command for the line changer received from the control unit, and transmits information about the driving and operating state of the line changer to the control unit; An electronic interlock device which communicates with the interface computer and transmits control information of the line changer; And a distributed control computer configured to perform control commands of the line changer through the control unit and to transmit control results of the line changer received from the electronic interlocking device, and to transmit the result to the electronic interlocking device. do.
On the other hand, the monitoring method of the line changer comprising a control step, a control step and a communication step, the control step, the line changer driving step for driving by applying power to the line changer; A direction control step of controlling a direction of the line changer; And a monitoring step of measuring and displaying the voltages applied to the respective parts of the line converter and the voltages generated during the normal and operation of the respective parts of the line converter, and in the monitoring step, the exclusive logic sum and the exclusive logic. By using a negative logic circuit connected to a logic sum, the exclusive logic sum is used to perform an interlock function for the line switcher, and the negative logic sum is achieved by expressing the voltage measurement value as digital data.

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According to the present invention described above, by using a simple operation button without a separate sensor, the control and display information of the line changer is read at the time of maintenance or failure of the line changer and the failure point is measured in real time. In addition, it is effective to improve the efficiency of work by preventing interfering obstacles by setting interlocks between line converters.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the individual measurements for each circuit using a tester during the inspection and maintenance of the conventional line changer, Figure 2 is a schematic diagram of the overall configuration according to an embodiment of the monitoring system of the line changer according to the present invention 3 is a view showing a control screen of the control unit according to an embodiment of the monitoring system of the line changer according to the present invention, Figure 4 is a view according to an embodiment of the monitoring system of the line changer according to the present invention 5 is a block diagram schematically illustrating the M1 and M2 display circuits of FIG. 4, and FIG. 6 is a display diagram of a control means according to an embodiment of a monitoring system for a line changer according to the present invention. 7 and 8 are circuit diagrams showing a display input of a control means according to an embodiment of the monitoring system for a line changer according to the present invention, and FIG. 10 is a circuit diagram illustrating a control voltage monitoring state of a control means according to an embodiment of a monitoring system of a line changer, and FIG. 10 illustrates a motor power monitoring state of the control means according to an embodiment of a monitoring system of a line changer according to the present invention. 11 is a control logic diagram of a monitoring means according to an embodiment of a monitoring system for a line changer according to the present invention, and FIG. 12 is a monitoring means according to an embodiment of a monitoring system for a line changer according to the present invention. Is a display (output) logic circuit of Fig. 13 is a display (input) logic circuit diagram of the monitoring means according to an embodiment of the monitoring system for a line changer according to the present invention, and Figs. 14 to 16 are line changers according to the present invention. Is a view showing a state of use of the monitoring means according to an embodiment of the monitoring system and the monitoring method of Fig. 17 is a view of the monitoring method of the line changer according to the present invention It is a figure which shows the structure by an example schematically.

First, prior to describing the present invention, the essential part of the present invention is electrically connected to the measuring point of the line converter 400 and the monitoring means 320 without a separate sensor, and is connected to the control means 310. By measuring the voltage at the measurement point using an operation button or the like, the monitoring means 320 fabricated using an exclusive logic sum (XOR) circuit and a negative logic sum (NOR) circuit and displaying the measured voltage digitally, Once again, it is a technology that can easily monitor in real time whether there is an abnormality in the line changer.

The present invention, as shown in Figure 2, the emergency braking of the train and the control unit 100 for monitoring and controlling the status of the signal and the line changer 400; Receiving control information from the control unit 100 to operate the line switch 400, the control unit 300 for informing the malfunction and failure of the line switch 400; And an association unit 200 connected to the control unit 100 and the control unit 300 to transmit and receive information between the control unit 100 and the control unit 300. ) Is connected to one or more measurement points provided in at least one of the line converter 400 to measure the voltage of each part of the line converter 400, and informs each of the measured voltage values.

Here, the control unit 100, as shown in Figure 3, the user using an input device such as a mouse, such as handling the signal signal, line switch, route setting, emergency braking, ten times input (control the information of the train When the train enters train information, door direction and driving time using an input device such as a keyboard, data is transmitted to the rail through an interface computer and an electronic interlocking device to be described below, and the data is received through a train antenna. To control or move the train), and communicate with the interface computer 210 to display the result of the execution on the monitor screen. It monitors and controls the whole system by displaying the + (deposition) and-(counter) directions according to the configuration direction.

In addition, the control unit 300 controls the direction of the line changer 400 to drive the line changer 400 by applying power to the line changer 400; And a voltage connected between the control means 310 and at least one of the line changers 400 and applied to the line changer 400 and a voltage generated during normal operation and operation of the line changer 400. 11 to 13, each of which is configured to include an exclusive logic circuit and a negative logic circuit linked to the exclusive logic circuit, and when the line converter 400 is operating through the exclusive logic circuit. And monitoring means 320 for controlling the monitoring operation of the line changer 400 and expressing the voltage measurement value as digital data through the negative logic sum.

In addition, the linkage unit 200 transmits a control command to the line changer 100 received from the control unit 100, and the control unit for information on the driving and operating state of the line changer 400. An interface computer 210 for transmitting to 100; An electronic interlocking device (220) which communicates with the interface computer (210) and transmits control information of the line changer (400); And control information of the line changer 400 received from the electronic interlocking device 220 through the control unit 300, and performing a control command of the line changer 400, and the result is the electronic interlocking device 220. It comprises a; distributed control computer 230 to transmit to.

Here, the interface computer 210 is different between TCP / IP of the control unit 100 and PROFIBUS (network device that enables communication between the interface computer and the electronic interlocking device) of the electronic interlocking device 220. By connecting the protocol, the control unit 100 controls the train by transmitting and receiving data and performs the stop point control function of the station, and it is composed of a dual system automatically attempts the seasonal sieve when one computer is down It is configured to control signaling equipment without interruption.

In addition, the interface computer 210 transmits the control information received from the control unit 100 to the electronic interlocking device 220, the drive of the line changer 400 received by the electronic interlocking device 220. And it serves to deliver the display information about the operating state to the control unit (100).

The electronic interlock device 220 is a facility for preventing the derailment of the train through the course setting and signal control, the three computers are configured in parallel to perform a normal function even if one of them is inoperable and the interface computer 210 And RS-485 communication to transmit and receive information, and the result is to perform optical communication with the distributed control computer 230 to control the line ventilation 400 and the signal.

The distributed control computer 230 is a device for controlling the line switch 400 and the signal, and the control information received from the electronic interlocking device 220 through the control unit 300 through the line switch 400 ) Performs a switching and signaling control command and transmits the result to the electronic interlocking device 220 through optical communication.

Meanwhile, as illustrated in FIG. 4 or 5, the controller 300 is a module that is responsible for an interface between the distributed control computer 230 and the line switcher 400.

The command related to the control of the line changer 400 in the electronic interlocking device 220 controls the line changer 400 through the controller 300 module, and the distributed control computer 230 controls the line changer. The overall control including the operation of the 400 and the check of the switching state of the line changer 400 is performed and the information is sent to the electronic interlocking device 220.

In addition, as shown in FIG. 2, the distributed control computer 230 is connected to the two control means 310, and the control means 310 is connected to the line changer 400 through the monitoring means 320. Each one of the control means 310 controls one of the line changers 400, and one of the distributed control computers 230 controls two of the control means 310.

The monitoring means 320 may be connected to a plurality of the control means 310 and the line changer 400, but preferably constitutes eight.

In addition, as shown in FIG. 4, an interlock is set between the line changers 400 to prevent a contact failure, and the control unit 300 according to control information of the distributed control computer 230. The control relay WR is operated by DC 24 [V] supplied from the UPS by operating the control command execution relay of the controller. The motor circuit is composed of the contacts of the control relay and the circuit controller, and is connected to the AC 110V of the UPS. The line converter 400 is switched by.

When the line converter 400 completes the operation, the DC 24 [V] of the UPS is boosted to DC 60V by the DC-DC converter (SMPS), and M1, through the contact point of the control relay WR and the circuit controller. It is supplied to M2, and displays the + direction (position) and-direction (counter) according to the supplied power polarity.

FIG. 5 is a block diagram illustrating the display circuits of M1 and M2 of FIG. 4, and generates 60 [V] from a built-in DC-DC converter (SMPS) from a DC 24 [V] supplied from a power supply device. 400) The power supply for the display circuit is supplied, and the DC (+) and (-) of M1 and M2 are interchanged according to the position of the circuit controller and the control relay contact point. Display (Reflection).

That is, in the (+) direction display circuit, when the direction of the line changer 400 is (+), the display circuit is supplied with voltages to the PLUS of the M1 relay and the MINUS of the M2 relay so that the circuit is configured as shown in FIG. 5. Is displayed.

In contrast to the (+) direction display circuit, when the direction of the line changer 400 is (−), the display circuit is supplied with voltages to the MINUS of the M1 relay and the PLUS of the M2 relay, so that the circuit is shown in FIG. 5. Configured and displayed.

Hereinafter, the operation of the control module of the controller 300 and the installation of the monitoring point electrically connected to the measuring point will be described as follows.

▶ Control means 310

1) Display power supply operation and measurement (see Fig. 6)

The power supply unit includes a kind of DC-DC converter, which is a kind of Switching Mode Power Supply (SMPS) that generates and supplies DC 24V to the control module for driving 12V × 2 and DC + 60V and -60V necessary for monitoring the line converter.

In order to monitor the display output unit of the line converter 400, a measuring point was installed at X4-5 and X4-6 to monitor the output voltage.

2) Display input unit operation and measurement (see Fig. 7 or 8)

The display circuit is composed of two display sections and receives different voltages by the constituent contacts of the field circuit controller. Looking at the circuit diagram, the portion composed of OP-Amp U2A, U2B, U3A, and U3B becomes the display portion 1, and the portion composed of OP-Amp U2C, U2D, U3C, and U3D becomes the display portion 2. The circuit is configured so that the circuit controller contact inputs + 60V to the display unit 1 and -60V to the display unit 2 when switching to the (+) direction.

When + 60V is supplied to the display unit 1, the integrator composed of U2A and the amplifier composed of U2B output Low and the LED 3 is turned on. On the contrary, the lower part consisting of U3A and U3B outputs High and LED 4 is turned off.

When the display unit 2 is supplied with -60V, the portion consisting of U3C and U3D outputs Low, and the LED 2 is turned on, and the portion consisting of U2C and U2D outputs High, and the LED 1 is turned off. If it is switched in the (-) direction, -60V is input to the display unit 1 and + 60V to the display unit 2, so that the operation is reversed.

In addition, while the line converter 400 is in operation, the integrator input of U3A and U3C is inputted with 12V and its output is applied to the inverting input terminals of U3B and U3D, and the output voltage is higher than that of the non-inverting input terminals of U3B and U3D. Done. Therefore, LED2 and LED4 are turned off, but LED1 and LED3 of the portion consisting of U2A, U2B, U2C, and U2D are turned on.

At this time, the output power of + 60V and -60V is input through the circuit controller and the control relay contact of the field line switch 400 to determine the direction of the line switch 400. In order to measure the input voltage, measuring points were installed at X4-9 and X4-10 to monitor the received voltage.

3) Line switch direction control unit operation and voltage measurement (see Fig. 9)

When the control information is received from the distributed control computer 230 in the '+' direction, the K2 (R) relay on the left side of the circuit diagram operates, and thus, the K1 (R2) and K8 (R1) relays operate. Done.

At this time, D23 (Lagerelais) and R LED (when the previous state is L) operate. That is, when a switching command is issued, only the D23 LED and each LED corresponding to the switching command operate.

Through the contacts of the K1, K8 relay to operate the control relay inside the field line converter 400.

The control relay is a polar relay, and the polarity of the control voltage DC24V applied according to the line changer switching direction is changed depending on whether the direction relay is driven. That is, in the positive direction, the K1 and K8 relays are driven, and +24 V is applied to the field control relay, and in the negative direction, the K3 and K5 relays are driven so that the voltage is of the opposite polarity. It is applied to this control relay.

In order to measure the voltage output to the control relay, a measuring point is installed at X3-3 and X3-6 terminals to monitor the voltage output at all times.

4) Motor power part measurement (see Fig. 10)

The distributed control computer 230 operates the control relay and makes the X100-24 (24V always supplied to the X100-2 terminal) at zero potential in the center right portion of the circuit diagram. The 24V supplied through this terminal turns on the Q8 and Q13 during the charging time of the C20 and C31 capacitors to operate the HS1 and HS2 switching auxiliary relays (K4, K6, K9 and K10 relays).

Therefore, HS1 and HS2 operate even if the display power supply ± 60 V does not flow to the T2 primary side. During this time, the relay contacts turn ON and AC110V flows through the contact, and during the following time, the current is induced to the secondary side of T2 by AC110V to drive OP3, OP4, OP7 optocouplers, and K4, K6, K9, The K10 relay can be driven.

By the above procedure, the HS1 and HS2 relays operate for 16 seconds during the conversion. T2 magnetization of AC110V is performed until the contact of the circuit controller drops and the contacts of the auxiliary relays HS1 and HS2 fall.

In this way, T2 performs the line switch 400 switching operation through the monitoring of AC110V, Set the measuring point in X3-1, X3-8 to monitor the motor power supply.

Monitoring means (see FIGS. 11 to 13)

In general, one railway station interlocking station is installed and operated more than five of the line changer 400, and after the monitoring point is installed as described above, the line changer 400 by a constant chain control the collective measurement In order to prevent the interference caused by the power contact by making the interlocking device so that it is not possible to measure the other line switch 400 during the measurement of one line switch 400.

That is, the control circuit is XOR, the display input, display output, control voltage, the motor voltage of the logic circuit for monitoring the line changer 400 of one station by adopting a NOR circuit to the line switch 400 between each other. Interlock was set to prevent contact failure due to malfunction.

When PB101A is pressed, the 101B, 102A, 102B, 103A, 103B, and 104 relays have a drop contact configuration, and if there is no error, the 101A monitoring relay operates, and the PB101A continues to operate by the self-holding circuit. Even if the button is pressed for another line switch 400 measurement, it is not operated by interlocking, and other line switch 400 can be measured only by pressing the reset button. (PB101B ~ PB104B can also be measured by the same procedure as above. It works.)

Monitoring of the line switch 400 is implemented to monitor in real time the control, display 1, display 2, motor voltage of the line switch 400 by the excitation contact of the relay operated by the operation button handling.

That is, the present invention electrically connects the measuring point of the line switch 400 with the control unit 300, and the measuring point of the control unit 300 (X4-5, X4-6, X4-9, X4-10). , X3-3, X3-6, X3-1, and X3-8), and as shown in FIGS. 14 to 16, are displayed digitally and the displayed voltage value is checked. The abnormality of the 400 is determined.

The displayed voltage value is compared with the voltage value when the line changer 400 normally operates to determine whether there is an abnormality, and the line changer 400 is connected to the line changer 400 per one operation button. When determining whether there is an abnormality, and when inspecting the other line switch 400, it is determined by pressing the reset button and then pressing the operation button connected to the other line switch 400.

For example, FIG. 14 shows 60 [V] and 30 [V] when one display power line is disconnected, and FIG. 15 shows 60 [V] and 60 [V when two display power lines are disconnected. ], And FIG. 16 shows a state in which the grounded line 0 [V] and the normal line 30 [V] are displayed when the display power is grounded.

On the other hand, as shown in Figure 17, the control step (S100) for monitoring and controlling the emergency braking of the train and the status of the signal and the line changer 400; A control step (S300) of receiving the control information input in the control step (S100) to operate the line switcher (400) and notifying a malfunction or failure of the line switcher (400); And a communication step (S200) for transmitting and receiving the control information and the performance result information according thereto, wherein the control step (S300) is connected to one or more measurement points provided in the at least one line switch 400. The voltage of each part of the line converter 400 is measured, and the measured voltage value is informed, respectively.

Here, the control step (S300) is a line converter driving step (S310) for driving by applying power to the line converter 400; A direction control step (S320) of controlling the direction of the line changer 400; And a monitoring step (S330) for measuring and displaying the voltages applied to the line switcher 400 and the voltages generated during normal operation and operation of the line switcher 400, respectively.

In addition, in the monitoring step (S330), by using the exclusive logic and the negative logic circuit linked to the exclusive logic sum, the operation of the other line switch 400 when the line converter 400 is operating through the exclusive logic sum. And the voltage measurement value is expressed as digital data through the negative logic sum.

While the present invention has been illustrated and described with respect to preferred embodiments, the invention is not limited to the above-described embodiments, and is commonly used in the field of the invention without departing from the spirit of the invention as claimed in the claims. Anyone with a variety of variations will be possible.

1 is a view showing the individual measurements for each circuit using a tester during the inspection and maintenance of the conventional line converter,

2 is a view schematically showing the overall configuration according to an embodiment of the monitoring system of the line changer according to the present invention,

3 is a view showing a control screen of the control unit according to an embodiment of the monitoring system of the line changer according to the present invention,

4 is a block diagram schematically showing a control unit according to an embodiment of a monitoring system for a line changer according to the present invention;

5 is a block diagram illustrating an M1 and M2 display circuit of FIG. 4;

6 is a circuit diagram showing the display output of the control means according to an embodiment of the monitoring system for a line changer according to the present invention;

7 and 8 are circuit diagrams showing the display input of the control means according to an embodiment of the monitoring system for a line changer according to the present invention;

9 is a circuit diagram showing a control voltage monitoring state of the control means according to an embodiment of the monitoring system for a line changer according to the present invention;

10 is a circuit diagram showing a motor power monitoring state of the control means according to an embodiment of the monitoring system for a line changer according to the present invention;

11 is a control logic circuit diagram of a monitoring means according to an embodiment of a monitoring system for a line changer according to the present invention;

12 is a display (output) logic circuit diagram of a monitoring means according to an embodiment of a monitoring system for a line changer according to the present invention;

13 is a display (input) logic circuit diagram of a monitoring means according to an embodiment of a monitoring system for a line changer according to the present invention;

14 to 16 is a view showing a state of use of the monitoring means according to an embodiment of the monitoring system and monitoring method of the line changer according to the present invention,

17 is a view schematically showing the configuration according to an embodiment of the monitoring method of the line changer according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: control unit 200: linkage

210: interface computer 220: electronic interlocking device

230: distributed control computer 300: control unit

310: control means 320: monitoring means

400: line converter

S100: control step S200: communication step

S300: control step S310: line converter driving step

S320: direction control step S330: monitoring step

Claims (7)

delete delete In the monitoring system of the line changer comprising a control unit, a control unit and an association unit for transmitting and receiving information between the control unit and the control unit, the control unit, Control means for driving the line changer by applying power to the line changer and controlling the direction of the line changer; And Monitoring means connected to the control means and at least one of the line changers to measure and display voltages applied to the respective portions of the line changer and voltages generated during normal and operation of each portion of the line changer; It is made, including The monitoring means, And an exclusive logic circuit connected to an exclusive logic sum and the exclusive logic sum, and perform an interlock function for the line switcher through the exclusive logic sum, and expressing the voltage measurement value as digital data through the negative logic sum. Characterized in that the monitoring system of the line changer. The method of claim 3, wherein the linkage unit, An interface computer which transmits a control command to the line changer received by the control unit and transmits information on driving and operating states of the line changer to the control unit; An electronic interlock device which communicates with the interface computer and transmits control information of the line changer; And A distributed control computer for performing control command of the line changer through the control unit and receiving control information of the line changer received from the electronic interlocking device, and transmitting the result to the electronic linking device; The monitoring system of the line converter, characterized in that comprises a. delete delete In the monitoring method of the line changer comprising a control step, a control step and a communication step, the control step, A line switch driving step of driving power by applying power to the line switch; A direction control step of controlling a direction of the line changer; And A monitoring step of measuring and displaying a voltage applied to each part of the line switch and a voltage generated during normal and operation of each part of the line switch; It is made, including, in the monitoring step, By using an exclusive logic circuit and an negative logic circuit linked to the exclusive logic circuit, the exclusive logic sum performs an interlock function for the line switcher, and the voltage measurement value is expressed as digital data through the negative logic sum. Monitoring method of the line changer.

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