KR101192545B1 - Precision stop marker or balise having operation status display part and control method thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground for automatic driving of a train having an operating state display unit and a control method thereof, wherein a ground for automatic driving of a train having an operating state displaying unit according to the present invention receives a power wave received from a vehicle onboard device as a ground. A reception unit for transmitting the PSM information or the BIS information of the terrestrial device to the on-vehicle device, a power supply voltage generation unit for generating a constant voltage which is a power supply voltage for driving the terrestrial power using the power wave, and included in the power wave A synchronous signal output unit for detecting and outputting a synchronous signal, an operating voltage detector for detecting whether the constant voltage corresponds to a normal operating voltage of a transmitter capable of operating the transmitter normally, the synchronous signal input from the synchronous signal output unit, and The grounder by analyzing a detection signal input from the operating voltage detector; A control unit for determining whether or not the normal operation of the control unit does not output the PSM information or the BIS information to the in-vehicle device when the constant voltage is lower than the normal operation voltage of the transmitter, and an operation input from the control unit. It includes an operation state display unit for displaying whether the normal operation of the ground to the outside according to the status signal.

Description

Ground self-driving ground control method with operation status indicator and its control method {PRECISION STOP MARKER OR BALISE HAVING OPERATION STATUS DISPLAY PART AND CONTROL METHOD THEREOF}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground for automatic driving of a train having an operation state display unit and a control method thereof, and more particularly, to a high frequency type from an on-vehicle device of a train by an RFID method for automatic driving of a train such as a railroad. The present invention relates to a ground driver for automatic driving of a train having an operation state display unit which receives power and transmits PSM information or BIS information, and a control method thereof.

Electric trains, such as trains operating in cities, are essential systems in the development of railways and have automatic train control (ATC) or automatic train operation (ATO) devices.

Here, the ATC device is to secure safety while driving the electric vehicle, and is a device that determines whether to continue driving or stop according to the operation of the signal device during driving. On the other hand, the ATO device is a device for automatically controlling the various functions related to the automatic driving in addition to determining whether the driving of the vehicle and whether or not.

In order to function as the ATO system, a plurality of locations are provided for each predetermined section of the track, and the location information device for transmitting location information regarding the remaining distance, gradient, station number information, driving and stopping status, etc. Ground self-driving train is required.

These grounders can effectively control the automatic operation of trains on board by efficiently realizing driving and occlusion functions of moving trains as well as slow safety driving at fixed positions, track slopes, curves, soft ground or accident points. It is essential equipment, and representative types of grounders are PSM (precision stop marker) installed on the main line where the train actually operates and interlocked with the incoming signal on the track inside the vehicle base. There is a balise that is controlled to prevent fraudulent departure of the train, and actual photographs of these grounders are shown in FIGS.

1 is a photograph showing a state in which a conventional train automatic driving ground is installed on a track;

FIG. 2 is an enlarged photograph of a ground for automatic driving of a conventional train of FIG. 1, and FIG. 3 is a circuit photograph of an internal configuration of a ground for automatic driving of a conventional train of FIG. 2.

These grounders are powered by using power waves supplied by the RFID method from on-board devices mounted on the train, and in the case of PSM, the PSM information, which is internally stored location information, or in the case of Bally's, are included in the BIS signal. The BIS information, which is the illegal start prevention instruction information, is transmitted to the onboard apparatus. Then, the on-vehicle device is to control the automatic operation of the train, such as stop the exact position of the train or prevent the illegal start by detecting the position information of the ground or illegal start prevention command information.

However, these grounders are directly exposed to the external environment such as weather because they are installed on the track in the main ship or vehicle base. Therefore, continuous use may cause breakdown due to water penetration, vibration or shock from the operation of the train, causing corrosion, short circuit, or disconnection of the internal circuit of the ground, and in this case, failing to secure stable automatic operation of the train may occur. .

Therefore, these grounders often need to be checked for normal operation. However, in the case of a conventional grounder, the inspector carries a heavy test apparatus directly and has to check whether each grounder works normally.

In addition, the conventional terrestrial person, even when the power is unstable or the power supply voltage level is low in the process of converting the power wave received from the onboard device to the power source, if the control unit satisfies the driving voltage condition of the control unit, the control unit transmits the position information or the train to the onboard unit. The illegal start prevention command information signal is output. In this case, however, the transmitter cannot transmit the PSM information or the BIS information signal at a signal level that can accurately recognize the PSM information or the BIS information signal, which may cause an error in receiving the PSM information or the BIS information signal in the on-vehicle device. There was a problem that can not secure the operation.

Therefore, the technical problem to be solved by the present invention is to solve the above problems by displaying the operating state of the ground to the outside, the ground for automatic driving of the train having an operation state display unit that the checker can easily check whether the normal operation of the ground and It is to provide a control method.

In addition, another technical problem to be solved by the present invention is to solve the above problems by checking whether the power source is unstable or the power supply voltage level is low in the process of converting the power wave received from the next-generation device to the power, if this is the case The control unit does not output the PSM information or the BIS information signal to the onboard device to provide a grounding vehicle for automatic operation of the train that can prevent the reception error of the PSM information or BIS information signal of the onboard device and a control method thereof will be.

The ground for automatic driving of the train having an operation state display unit according to the present invention for solving the above problems is a receiving unit for receiving the power wave received from the onboard device of the train to the ground, the PSM information or BIS information of the ground to the onboard device A transmission unit for transmitting, a power supply voltage generation unit for generating a constant voltage which is a power supply voltage for driving the ground person using the power wave, a synchronization signal output unit for detecting and outputting a synchronization signal included in the power wave, and the constant voltage being the An operating voltage detector for detecting whether the transmitter corresponds to a normal operating voltage of the transmitter, the sync signal input from the sync signal output unit, and a detection signal input from the operating voltage detector to analyze the normal signal of the terrestrial person. It is determined whether the operation, the constant voltage is the normal operation of the transmitter A control unit that prevents the transmitter from outputting the PSM information or the BIS information to the on-vehicle device when the pressure is less than the pressure, and externally indicating whether the grounder is normally operated according to an operation state signal input from the control unit. It includes an operation status indicator.

The power supply voltage generator is configured to rectify the power wave input through the receiver, and a primary constant voltage to generate a primary constant voltage by lowering the voltage rectified in the rectified view to a transmitter operating voltage level capable of operating the transmitter. The generation unit may include a secondary constant voltage generation unit configured to generate a secondary constant voltage by lowering the primary constant voltage to a control unit starting voltage level capable of starting the control unit.

The operation voltage detector divides the primary constant voltage through a plurality of resistance elements connected in series between the primary constant voltage generator and ground, and applies an operation voltage detection signal to the controller to drop the primary voltage to a voltage level lower than the secondary constant voltage. can do.

The operation state display unit may display a display element to be displayed to the outside by changing the display method by analyzing the operation state signal, a battery for supplying driving power to the display element,

A driving transistor which is a switch for turning on / off the display element, and a resistor connected in series between the battery and the display element to limit a magnitude of a current so that a predetermined driving current is applied from the battery to the display element.

On the other hand, the control method of the ground for automatic driving of the train having an operation state display unit according to the present invention for solving the above problems is a step of receiving a high frequency signal which is a power wave from the onboard device, when the high frequency signal is received by using the driving of the ground Generating a constant voltage which is a power supply voltage for the power supply, detecting a synchronous signal included in the high frequency signal, analyzing an operation voltage detection signal that causes the power supply voltage to be lowered to a predetermined voltage level and analyzing the operation voltage detection signal as PSM information or Determining whether the synchronization signal is good corresponding to a predetermined voltage level capable of transmitting BIS information; determining whether the synchronization signal is good; and when the power supply voltage is good and the synchronization signal is good, Determining whether or not the input signal is input; if the BIS signal is input, Transmitting BIS information, and if the BIS signal is not input, transmitting the pre-stored PSM information to the on-vehicle device, and indicating that the terrestrial person is operating normally through the operation state display unit. do.

If the synchronization signal is not good as a result of determining whether the synchronization signal is good, it may further include the step of displaying to the outside through the operation state display unit that the ground signal does not operate normally because the synchronization signal is poor.

Determining whether the power supply voltage is good; re-determining whether the synchronization signal is good when the power supply voltage is not good; and re-determining whether the synchronization signal is good; Indicating that the grounder does not operate normally because only the power supply voltage is poor, and when the synchronization signal is not good as a result of re-determining whether the synchronization signal is good, The display device may further include displaying the external device through the operation state display unit because all of the synchronization signals are bad and the grounder does not operate normally.

As described above, according to the ground for automatic driving of the train having an operating state display unit according to the present invention and a control method thereof, the grounder includes an operating state display unit for displaying the operating state of the ground to the outside to check whether the grounder is operating normally. By making it easy to check, there is an advantageous effect to ensure stable automatic operation of the train.

In addition, according to the ground for automatic driving of the train having an operation state display unit according to the present invention and a control method thereof, whether or not the power source is unstable or the power supply voltage level is low in the process of converting the power wave received from the onboard device to the power source. If this is the case, the control unit can prevent the transmitter from outputting the PSM information or the BIS information signal to the onboard device, thereby preventing the reception error of the PSM information or the BIS information signal of the onboard device, thereby ensuring stable automatic operation of the train. That has a beneficial effect.

1 is a photograph showing a state in which a conventional train automatic driving ground is installed on a track;
2 is an enlarged photograph of a ground for a conventional train automatic driving of FIG.
Figure 3 is a circuit diagram of the internal configuration of the conventional train automatic driving ground of Figure 2,
4 is an internal configuration block diagram of a ground for automatic driving of a train having an operation state display unit according to an embodiment of the present invention;
5 is an internal configuration circuit diagram of a ground for automatic driving of a train having an operation state display unit according to an embodiment of the present invention;
6 is an enlarged view of a receiver of an internal circuit diagram shown in FIG. 5;
FIG. 7 is an enlarged view of a power supply voltage generator in the internal circuit diagram shown in FIG. 5;
8 is an enlarged view of a synchronization signal output unit in the internal circuit diagram shown in FIG. 5;
9 is an enlarged view of an operating voltage detector and a controller in the internal circuit diagram shown in FIG. 5;
FIG. 10 is an enlarged view of a transmitter of the internal circuit diagram shown in FIG. 5;
FIG. 11 is an enlarged view of an operating state display unit of the internal circuit diagram shown in FIG. 5;
12 is an enlarged view of the BIS signal detection unit shown in FIG. 5, and
FIG. 13 is a flowchart sequentially illustrating a control method of a ground driver for automatic driving of a train having an operating state display unit according to an exemplary embodiment of the present invention.

The details of other embodiments are included in the detailed description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and those skilled in the art to which the present invention belongs. It is provided to fully inform the scope of the invention, and the invention is defined only by the scope of the claims.

Like reference numerals refer to like elements throughout. Embodiments described herein will be described with reference to ideal block diagrams, circuit diagrams, and enlarged views of the present invention.

Hereinafter, with reference to the accompanying drawings, a person having ordinary knowledge in the technical field to which the present invention belongs can easily carry out the ground for automatic driving of a train having an operation state display unit and a control method thereof according to an embodiment of the present invention. Explain in detail so that

First, with reference to Figures 4 to 12 will be described in detail the ground for automatic driving of the train having an operating state display unit according to the present invention.

4 is a block diagram illustrating an internal configuration of a ground for automatic driving of a train having an operating state display unit according to an embodiment of the present invention, and FIG. 5 is an interior of a ground for automatic driving of a train having an operating state display unit according to an embodiment of the present invention. 6 is an enlarged view of a receiver of the internal circuit diagram shown in FIG. 5, FIG. 7 is an enlarged view of a power supply voltage generator of the internal circuit diagram shown in FIG. 5, and FIG. 8 is an internal circuit diagram of FIG. 5. 9 is an enlarged view of the operation voltage detector and the control unit of the internal configuration circuit diagram of FIG. 5, FIG. 10 is an enlarged view of the transmission unit of the internal configuration circuit diagram of FIG. 5, and FIG. An enlarged view of the operation state display unit of the internal configuration circuit diagram shown in FIG. 5, and FIG. 12 is an enlarged view of the BIS signal detection unit shown in FIG. 5.

Prior to the description, each of the resistors R, coils L, and capacitors C shown in Figs. 5 to 12, respectively, shows the actual values used in the present embodiment numerically, but the basic units of the resistors R (ohm), coil L Note that Henry's (H) and Parrot (F) of capacitor C are omitted.

The ground for automatic driving of the train having an operation state display unit according to an embodiment of the present invention includes a receiver 100, a power supply voltage generator 200, a synchronization signal output unit 300, an operation voltage detector 400, and a controller 500. ), A transmitter 600, an operation state determiner 700, and a BIS signal detector 800.

The receiving unit 100 receives the 27 MHz power wave input from the onboard device of the train through the first and second receiving antennas 10 and 12, and as shown in FIGS. 4 to 6, the resonance filter unit 110, It includes a receiving transformer 120 and the input side overvoltage protection unit 130.

The resonance filter unit 110 resonates the power waves received through the first and second reception antennas 10 and 12 to maximize energy and apply the energy to the reception transformer 120.

The receiving transformer 120 is used as an impedance matching and a power transformer for coupling the impedances of the rectifying unit 210 which is the primary side and the secondary side of the receiving antennas 10 and 12.

The input side overvoltage protection unit 130 lowers the power wave input through the receiving unit 100 to a voltage below a predetermined level when the power wave is in the overvoltage level, thereby overvoltageing the power supply voltage generator 200 and the synchronization signal output unit 300. It is prevented from being applied and destroyed.

Since the receiver 100 is a known configuration, detailed description thereof will be omitted.

The power supply voltage generator 200 includes a rectifier 210, a primary constant voltage generator 220, and a secondary constant voltage generator 230, and uses a power wave inputted through the receiving transformer 120 to make a ground wave. Generate a constant voltage to drive the internal circuit.

The rectifier 210 includes bridge diodes DN31 and DN32 connected to the receiving transformer 120, and C31, which is a ripple filter, rectifies the power wave input through the receiving transformer 120.

Since the voltage rectified by the rectifier 210 reaches a maximum of 9 V, the primary constant voltage generator 220 may be supplied with an overvoltage to the synchronization signal output unit 300, the operation voltage detector 400, and the BIS signal detector 800, or may include a transmitter ( In order to prevent the 600 from over-transmitting, the rectifier voltage is primarily generated to supply a primary constant voltage V _CC1 for supplying power having a lowering to 5.5 V, which is a transmitter operating voltage level.

Since the rectifier 210 and the primary constant voltage generator 220 are the same as the well-known configuration, detailed description thereof will be omitted.

Since the secondary constant voltage generation unit 230 is sufficient for the start of the control unit 500, only the 3.3 V power source, which is the control voltage of the control unit 500, is sufficient to set the 5.5 V primary constant voltage V _CC1 to the secondary constant voltage V _CC . The secondary constant voltage V _CC stabilized by further dropping to 3.3 V is applied to the controller 500.

To this end, the secondary constant voltage generator 230 includes a diode D32 and a resistor R35 connected in series with the output terminal of the primary constant voltage V _CC1 , and a zener diode D33 connected between the output terminal of the secondary constant voltage V _CC and ground. It is composed.

The diode D32 prevents the secondary constant voltage V _CC generated by the secondary constant voltage generator 230 from being output to the outside of the controller 500.

The resistor R35 converts the primary constant voltage V _CC1 into the secondary constant voltage V _CC necessary for starting the controller 500 through the voltage drop.

Zener diode D33 prevents the secondary constant voltage (V _CC ) changed in resistor R35 from exceeding 3.3V.

The sync signal output unit 300 includes a sync signal detector 310 and a sync signal overvoltage protector 320.

The synchronization signal detector 310 detects and applies only the 50 KHz synchronization signal included in the 27 MHz power wave used as the power received from the on-vehicle device through the receiver 100 to the controller 40.

Since the synchronization signal detector 310 is the same as a known configuration, detailed description thereof will be omitted.

The sync signal overvoltage protection unit 320 includes a zener diode D21 connected between the output terminal of the sync signal detector 310 and a ground. The zener diode D21 prevents an excessive voltage from being input to the controller 500 by preventing the 50KHz synchronization signal detected by the synchronization signal detector 310 to be 3.3V or less, thereby preventing malfunction or failure of the controller 500.

The operation voltage detector 400 generates an operation voltage detection signal for determining whether the controller 500 can normally transmit PSM information or BIS information to the on-vehicle device of the train through the transmitter 600, and then generates the operation voltage detection signal. ) Is applied. That is, the operation voltage detector 400 determines whether the primary constant voltage V _CC1 generated by the primary constant voltage generator 220 and applied to the transmitter 600 is a voltage at which the transmitter 600 can operate normally. To this end, the operating voltage detection signal generated by dropping the primary constant voltage V _CC1 through the divided voltage is applied to the controller 500.

To this end, the operating voltage detection unit 400 includes resistors R2 and R3 connected in series between the output terminal of the primary constant voltage V _CC1 and the capacitor C6 and resistors R2 connected between the distribution point node between the resistors R2 and R3 and ground. A resistor R5 connected between the distribution point node R3 and the operating voltage detection signal input terminal PCO of the controller 500 and a capacitor C8 connected between the operating voltage detection signal input terminal PCO and ground. .

The primary constant voltage V _CC1 generated by the primary constant voltage generator 220 is _dropped by the divided voltage ratio of the resistors R2 and R3 and converted into an operating voltage detection signal proportional to the operating voltage of the transmitter 500 to detect the operating voltage. It is input to the signal input terminal PCO. The operating voltage detection signal is a voltage signal lower than the secondary constant voltage V _CC .

The reason why the operating voltage signal generated by lowering the primary constant voltage V _{CC1 by the} voltage _division ratio of the resistors R2 and R3 is a voltage signal lower than the secondary constant voltage V _CC is because the controller 500 is used for self-starting. This is because a voltage larger than the secondary constant voltage Vcc, which is a voltage, cannot be read.

The reason why the ground voltage is additionally provided to the ground voltage detector 400 is that the primary constant voltage V _CC1 is lower than the voltage for the normal transmission of the transmitter 600 even though the controller 500 transmits through the transmitter 600. This is because even if the PSM information or the BIS information signal is output to the onboard device, the onboard device may not have a sufficient signal level to correctly receive the PSM information or the BIS information reception error.

The controller 500 analyzes an operation voltage detection signal proportional to the primary constant voltage V _CC1 input from the operation voltage detector 400, and thus the voltage level of the primary constant voltage V _CC1 is normally driven by the transmitter 600. If it is determined that the minimum allowable error voltage level is 4.7 V or less, it is treated as a power failure to prevent the transmitter 600 from outputting the PSM information or the BIS information signal.

In addition, the control unit 500 determines the state of the primary constant voltage V _CC1 , which is the driving power supply voltage of the transmitter 600, and whether the synchronization signal is normally input, and when the normal output of the PSM information or the BIS information is possible, the operation state display unit 700. ) To indicate whether or not the grounder is currently operating normally.

The transmitter 600 receives the PSM information or the BIS information signals OUT1 and OUT2 output from the PSM information or the BIS information output terminals PD0 and PD1 of the controller 500 and modulates the signal into a 4.5 MHz frequency signal to the next-generation device. Send. The configuration of the transmitter 600 is a well-known configuration except that a lightning-protection circuit unit composed of two zener diodes or a gas-embedded discharger that discharges at a predetermined voltage or more in order to protect against a lightning strike is connected in parallel to the capacitor C41. Since it is the same as the detailed description thereof will be omitted.

The operation state display unit 700 displays the normal operation of the ground person outside according to the operation state signal of the control unit 500 input from the operation state display unit operation signal output terminal PD2.

To this end, the operation state display unit 700 analyzes an operation state signal applied from the control unit 500 and supplies driving power to the microcomputer U51, the microcomputer U51, and the display device, which drive the LED as the display device according to a pre-stored display method. (BATTRRY), a drive transistor Q51, a switch for turning on / off a display element, a resistor R53 connected in series between the battery and the LED to limit the magnitude of the current so that an appropriate drive current is applied from the battery to the display element, the drive transistor Q51 and the microcomputer A resistor R52 connected between U51 to prevent overvoltage from the microcomputer U51 to the driving transistor Q51, a resistor R51 for initial startup of the microcomputer U51 by connecting the battery and the reset terminal of the microcomputer U51, and between the positive terminal of the battery and the ground And a ripple filter C51 to stabilize the power supply.

In the present embodiment, the display device uses LEDs, but other known display devices may be used.

Referring to the driving method of the operation state display unit 700, when the driving signal output from the PB4 terminal becomes high, the driving voltage is applied to the gate of the driving transistor Q51 through the resistor R52. Then, the current flows through the path of battery → resistor R53 → LED → driving transistor Q51 → ground and the LED emits light.

The driving signal and LED display driving method output from the PB4 terminal according to the operation of the ground is as shown in Table 1 below.

division Ground working condition Output drive signal LED indication drive
(Unit time is 0.25 seconds) One Normal operation 11111111 Lights up for 2 seconds 2 Power supply voltage bad 11001100 Two 0.5-second off after 0.5 sec lighting 3 Bad sync signal 11101110 2 turns off for 0.25 sec after 0.75 sec lit 4 Poor supply voltage and sync signal 10001000 2 turns off for 0.75 sec after 0.25 sec lit 5 A complete failure none         none

The operation state display unit 700 preferably has a time delay function (ON DELAY TIME) to allow the inspector to visually check the display state to allow the train to pass and to turn on.

The BIS signal detector 800 is added when the grounder is a balis, and inputs the BIS signal to the controller 500 through the external connection connector 820 from the external signal equipment room. When the BIS signal is input, the control unit 500 outputs the BIS information included in the BIS signal to the on-vehicle device through the transmitter 600 in preference to the PSM information.

Since the configuration of the BIS signal detection unit 800 is also the same as the known configuration, detailed description thereof will be omitted.

On the other hand, the numerical values of the resistance R, coil L, capacitor C and various voltage values described in the present embodiment are voltage values that can be increased or decreased proportionally according to various conditions such as ground level and internal circuit performance and size. .

Hereinafter, with reference to Figures 4 to 13 will be described a control method of the ground for automatic operation of the train having an operating state display unit according to an embodiment of the present invention.

FIG. 13 is a flowchart sequentially illustrating a control method of a ground driver for automatic driving of a train having an operating state display unit according to an exemplary embodiment of the present invention.

In the control method of the ground for automatic driving of the train having the operation state display unit according to the present invention, when the first train is approaching the ground, the high frequency signal is a power wave from the onboard device to the ground through the receiving antennas 10 and 12 using the RFID method. Receive (S10).

If a high frequency signal, which is a real power wave, is not received due to the characteristics of the ground person, the control unit 500 does not generate any driving voltage using the high frequency signal. However, when the high frequency signal is received, the power supply voltage generator 200 does not perform any operation. Since the driving voltage is supplied to the control unit 500 through the start.

When a high frequency signal, which is a power wave, is received through the reception antennas 10 and 12 (S10), a primary constant voltage V _CC1 and a secondary constant voltage V _CC are sequentially generated through the power supply voltage generator 200. The synchronization signal is detected and output through the synchronization signal output unit 300 (S20).

The controller 500 starts operation when the second constant voltage V _CC is input from the power supply voltage generator 200, and analyzes the operation voltage detection signal input from the operation voltage detector 400 to analyze the primary constant voltage generator ( _{Whether the} primary constant voltage V _CC1 generated through 220 satisfies a voltage level at which the transmitter 600 may transfer the PSM information or the BIS information transmitted from the controller 500 to the next-generation device, that is, whether the power supply voltage is good. Determine (S30).

If the power supply voltage is good, the controller 500 determines again whether the synchronization signal input from the synchronization signal output unit 300 is good (S40).

If the synchronization signal is also good, the controller 500 determines whether the BIS signal is input through the BIS signal detector 800 (S50).

When the BIS signal is input, the controller 500 causes the transmitter 600 to transmit the BIS information to the on-vehicle device via the transmit antennas 20 and 22 in preference to the PSM information stored therein (S60).

If the BIS signal is not input, the controller 500 causes the transmitter 600 to transmit PSM information stored in the controller 500 to the on-vehicle apparatus through the transmit antennas 20 and 22 (S70).

In addition, the control unit 500, together with the transmission of the PSM information or the BIS information (S60, S70) has a good power supply voltage and a synchronization signal, so that the control unit 500 normally transmits the PSM information or the BIS information to the next-generation device through the transmitter 600. The operation state to be transmitted is displayed to the outside through the operation state display unit 700 (S80).

In the display method, as shown in the above Table 1, the LED output driving signal is applied so that the LED is turned on for 2 seconds so that the inspector can confirm that the grounder is operating normally.

On the other hand, if the result of the determination whether the synchronization signal is good (S40), if the synchronization signal is not good, the control unit 500 displays that the synchronization signal is bad through the operation state display unit 700 (S82).

Specific display method is as shown in the above-mentioned Category 3 of Table 1 by applying the LED output drive signal, the LED is turned on for 0.75 seconds, the light is repeated twice for 0.25 seconds so that the checker is input to the control unit 500 Make sure the signal is bad.

On the other hand, as a result of determining whether the power supply voltage is good (S30), even when the power supply voltage is not good, the control unit 500 determines whether the synchronization signal input from the synchronization signal output unit 300 is good (S42). .

If the synchronization signal is good, the control unit 500 displays that the power supply voltage is poor through the operation state display unit 700 (S84).

Specific display method is to apply the LED output drive signal as shown in the above section 2 of Table 1 so that the LED is turned on for 0.5 seconds, the light is repeated twice for 0.5 seconds so that the inspector is input to the control unit 500 It can be confirmed that this is a bad state.

If the synchronization signal is also bad, the control unit 500 displays that the power supply voltage and the synchronization signal are both defective through the operation state display unit 700 (S84).

Specific display method is as shown in the above section 4 of Table 1 by applying the LED output drive signal so that the LED is turned on for 0.25 seconds, the light is repeated twice for 0.75 seconds, so that the inspector is input to the control unit 500 Ensure that both the voltage and sync signals are bad.

On the other hand, in the present embodiment, the power supply voltage good determination step (S30) is described as preceded by the synchronization signal good determination step (S40, S42), but not limited to this, both may be performed at the same time, and may be performed in reverse.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements or forms of those skilled in the art using the basic concepts of the present invention defined in the following claims are provided. It belongs to the scope of the invention.

10, 12: first and second reception antennas 20, 22: first and second transmission antennas,
100 receiver 110 resonant filter unit
120: receiving transformer 130: input side overvoltage protection unit
200: power supply voltage generator 210: rectifier
220: primary constant voltage generator 230: secondary constant voltage generator
300: sync signal output unit 310: sync signal detector
320: sync signal overvoltage prevention unit 400: operating voltage detection unit
500 control unit 600 transmission unit
610: lightning protection circuit unit 700: operation state display unit
800: BIS signal detector 820: external connection connector

Claims (7)

Receiving unit for receiving the power wave received from the onboard device of the train to the ground,
A transmitter for transmitting the PSM information or the BIS information of the terrestrial device to the on-vehicle device,
A power supply voltage generator configured to generate a constant voltage which is a power supply voltage for driving the ground person using the power wave;
A synchronization signal output unit for detecting and outputting a synchronization signal included in the power wave;
An operating voltage detector for detecting whether the constant voltage corresponds to a transmitter normal operating voltage capable of operating the transmitter normally;
The synchronization signal input from the synchronization signal output unit and the detection signal input from the operation voltage detector are analyzed to determine whether the terrestrial normal operation is performed, and if the constant voltage is less than the normal operation voltage of the transmitter, A control unit not to output the PSM information or the BIS information to the on-vehicle device, and
Operation status display unit for displaying whether the normal operation of the ground person to the outside according to the operation status signal input from the controller
Containing
Ground self-driving train with operating status indicator. In claim 1,
The power supply voltage generator
A rectifier for rectifying the power wave input through the receiver;
A primary constant voltage generation unit configured to generate a primary constant voltage by reducing the voltage rectified by the rectifier to a transmitter operating voltage level capable of operating the transmitter, and
A secondary constant voltage generation unit configured to generate a secondary constant voltage by lowering the primary constant voltage to a control unit starting voltage level capable of starting the control unit;
Containing
Ground self-driving train with operating status indicator. In claim 2,
The operating voltage detector
Dividing the primary constant voltage through a plurality of resistor elements connected in series between the primary constant voltage generator and ground to apply an operation voltage detection signal to the controller to drop the primary constant voltage to have a voltage level lower than the secondary constant voltage;
Ground self-driving train with operating status indicator. In claim 1,
The operation state display unit
A display device configured to analyze the operation state signal and display the externally by changing a display method;
A battery for supplying driving power to the display element;
A driving transistor which is a switch for turning on / off the display element;
And a resistor connected in series between the battery and the display element to limit a magnitude of a current so that a predetermined driving current is applied from the battery to the display element.
Containing
Ground self-driving train with operating status indicator. Receiving a high frequency signal that is a power wave from an onboard device,
When the high frequency signal is received, generating a constant voltage, which is a power supply voltage for driving a ground person, and detecting a synchronization signal included in the high frequency signal;
Analyzing the operation voltage detection signal of bringing down the power supply voltage to a predetermined voltage level to determine whether the power supply voltage is good corresponding to a predetermined voltage level capable of transmitting PSM information or BIS information to the on-vehicle device;
Determining whether the synchronization signal is good;
Determining whether a BIS signal is input from an external source when the power supply voltage is good and the synchronization signal is good;
Transmitting the BIS information to the on-vehicle device when the BIS signal is input, and transmitting the pre-stored PSM information to the on-vehicle device when the BIS signal is not input, and
Indicating that the grounder is operating normally through the operation state display unit.
Containing
Control method of the ground for automatic driving of the train having an operation status display. The method of claim 5,
If the synchronization signal is not good as a result of determining whether the synchronization signal is good,
Displaying to the outside through the operation state display unit that the grounder does not operate normally because the synchronization signal is poor.
Further comprising
Control method of the ground for automatic driving of the train having an operation status display. The method of claim 6,
As a result of determining whether the power supply voltage is good,
Re-determining whether the synchronization signal is good when the power supply voltage is not good;
Re-determining whether the synchronization signal is good, and if the synchronization signal is good, displaying only the power supply voltage to the outside through the operation state display unit to the outside, and,
Re-determining whether the synchronization signal is good, and if the synchronization signal is not good, displaying the outside of the power supply voltage and the synchronization signal because the grounder does not operate normally through the operation state display unit.
Further comprising
Control method of the ground for automatic driving of the train having an operation status display.

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