KR100975344B1 - Sensing apparatus of rail damage using of frequency comparing - Google Patents

Abstract

The present invention relates to a rail breakage detection system through frequency comparison, and a rail breakage state in a closed section through whether or not a plurality of frequency sensing units detecting a frequency in association with a receiver and a transmitter provided in each rack device and a frequency intensity are detected. The aim is to provide a rail breakage detection system through frequency comparison that can quickly identify and prevent safety accidents and ensure quick repair.

According to the present invention, by receiving the frequency detection information and the unique number information of the detection unit from the frequency detection unit connected to the transmitter and the receiver provided in each of the plurality of rack devices, it is possible to quickly determine whether the rail is broken and the position of the loss by safety This has the advantage of preventing accidents as much as possible and accurately and quickly alarming and repairing rail breakage.

Rail breakage, non-isolated AF track circuit, frequency comparison.

Description

Rail breakage detection system by frequency comparison {SENSING APPARATUS OF RAIL DAMAGE USING OF FREQUENCY COMPARING}

The present invention relates to a rail breakage detection system through a frequency comparison, and more specifically, a plurality of frequency detection units which interlock with a receiver and a transmitter provided in each rack device to detect a frequency and detect a frequency and a frequency intensity within a blockage section. The present invention relates to a rail breakage detection system through frequency comparison to quickly grasp a rail breakage condition to prevent a safety accident and to perform a quick repair.

As is well known, the signal control technology for detecting such trains was developed primarily for safety purposes because of the low traffic volume and the low operating speed of the trains.

However, the recent train operation is using signal control technology based on safety while securing high reliability by introducing computer technology, electronic and electrical engineering technology to the railway field to promote high speed of mass transportation and speed of operation.

This signal control technology enabled safe operation of trains operating at high speeds and high densities, and improved the operational capacity of the trains and increased track capacity, resulting in improved transportation capacity.

However, although the signal equipment on the ship is simple and the reliability and stability are maintained high, there is a problem that it is very difficult to secure the stability and reliability with the signal equipment in the reverse zone composed of a large number of diverters.

In addition, since there are many track junctions in the station area, the field equipment is operated in series according to a preset interlocking rule for safe operation of the train, and some sections of the track are used as part of an electric circuit for train detection during operation. This is called a track circuit, and in particular, since some sections of the track are used, an AF frequency track circuit using an AF frequency (Audio Frequency) is used.

Hereinafter, the case where the AF frequency track circuit is used in the linear track circuit will be briefly described.

First, when the AF frequency track circuit is not used in the branch where the track branching device is configured, but when used in a straight track circuit, the train proceeds through the parallel track rail, so it is known to which section the train entered. In order to separate the sections into a plurality of sections through a plurality of insulating joints (not shown) connecting both track rails (5).

Therefore, by configuring the transmitter and the receiver for each section separated by the insulation joint, it generates the AF frequency, which is the signal frequency for the train detection between the transmitter and the receiver, and resonates the frequency to detect in which section the train entered. Done.

That is, in a section where the train is not occupied, the tuner receives and receives the AF frequency generated by the transmitter as it is, but in contrast, in the section occupied by the train, the wheels and shafts of the train short-circuit the rail. Since the AF frequency cannot be tuned by the tuning device, the AF frequency does not reach the receiver, so that it is possible to recognize that the vehicle enters the track circuit 5.

However, if the AF track circuit is composed of a conventional linear track circuit, the insulation joint for section separation must be configured with physical rail insulation, so the insulation work must be performed at the time of installation, and the level can be obtained by transmitting and receiving through a cable at the transceiver. The configuration of the transceiver to be adjusted becomes very complicated, adjustment work is difficult, and malfunctions of the circuit, noise, and vibration due to breakage of the insulation joint have become serious problems.

Therefore, in recent years, attempts have been made to solve such a problem by constructing such a linear track circuit by applying electrical insulation or non-insulation, rather than physical insulation.

However, the non-isolated AF track circuit system also has a problem that it is difficult to detect the rail breakage within the closed section.

The present invention has been made in view of the above-described prior art, and the rail is broken in a closed section through whether or not a plurality of frequency sensing units for detecting a frequency in conjunction with a receiver and a transmitter provided in each rack device and frequency intensity. The aim is to provide a rail breakage detection system through frequency comparison that can quickly identify and prevent safety accidents and ensure quick repair.

In order to achieve the above object, according to a preferred embodiment of the present invention is installed spaced apart at regular intervals on the railroad side, while receiving a control signal of the control room PC therein, while transmitting and receiving data in conjunction with other neighboring rack devices various signals A non-isolated track circuit rack device having a transmitter and a receiver for driving control of a device and a line switching device and checking a driving state thereof, wherein the rail is connected to the transmitter and the receiver respectively configured in the plurality of rack devices. A plurality of frequency sensing units (HMU1, HMU2, HMU3, HMU4) for detecting the AF frequency reception state transmitted through; The rail loss detection system through the frequency comparison comprising a control room PC (10) for receiving the frequency detection information from the frequency detection unit (HMU1, HMU2, HMU3, HMU4) to determine whether the rail is broken or not Is provided.

Preferably, the control room PC 10 is provided with the arrangement information for a plurality of frequency detection units (HMU1, HMU2, HMU3, HMU4) therein, the position of the cutoff of the rail according to the frequency detection result of each frequency detection unit A data storage unit 12 for storing DB table information for automatically identifying the data; An alarm output unit (16) for outputting an alarm when a rail break occurs in accordance with the frequency detection result received from the frequency detection units (HMU1, HMU2, HMU3, HMU4); Receive frequency detection information and unique number information of the detection unit from the frequency detection unit (HMU1, HMU2, HMU3, HMU4) and automatically determine whether the rail is broken or not according to the frequency detection result by comparing the DB table and alarm Provided is a rail breakage detection system through frequency comparison, comprising a frequency comparator 14 for controlling the generation.

Preferably, the control room PC (10) receives the frequency detection information and the unique number information of the detection unit from the frequency detection units (HMU1, HMU2, HMU3, HMU4) to determine whether the rail is broken or not. A rail breakage detection system through frequency comparison is provided.

The rail breakage detection system through frequency comparison according to the present invention receives frequency detection information and unique number information of a detection unit from a frequency detection unit connected to a transmitter and a receiver provided in a plurality of rack devices, respectively. By determining the position quickly, it is possible to prevent the occurrence of a safety accident as much as possible, and to accurately repair the rail breakage quickly and accurately.

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

1 is a view showing the configuration of a non-isolated AF track circuit system to which a rail breakage detection system is applied through a frequency comparison according to an embodiment of the present invention, Figure 2 is a frequency comparison according to an embodiment of the present invention It is a block diagram which shows the circuit structure of a rail breakage detection system.

Referring to this, the rail breakage detection system using the frequency comparison according to an embodiment of the present invention through a plurality of frequency detection unit for detecting the frequency in conjunction with a receiver and a transmitter provided in each rack device through whether the frequency and intensity It is a system that prevents safety accidents and makes quick repairs by quickly grasping the rail breakage condition in the blockage section.

To this end, the non-isolated AF track circuit system to which the rail breakage detection system is applied through frequency comparison according to an embodiment of the present invention is shown in FIG. First, second, third and fourth frequency sensing units HMU1, HMU2, HMU3 and HMU4 are provided for sensing the frequency transmitted through the rail, and the AF frequency is transmitted in the opposite direction to the traveling direction of the train. .

At this time, the fourth frequency sensing unit HMU4 provided at the right end of the linear track circuit centering on the branch part has a second transmission tuning unit tu2 'for resonating the AF frequency generated by the second transmitter tx2. It is connected to both rails of the linear track circuit, and the other end of the second transmitter tx2 is connected to a power supply unit PUS.

In addition, a second reception tuning unit tu1 'for receiving and tuning the AF frequency so that the second receiver rx2 receives the AF frequency is connected to both rails of the linear trajectory circuit, respectively. The other end of rx2 is connected to the power supply unit PUS, and the second receiver rx2 is also connected to a third frequency sensing unit HMU3 for detecting whether a frequency is received.

The first and second frequency sensing units HMU1 and HMU2 are configured at positions spaced apart from the third and fourth frequency sensing units HMU3 and HMU4 to the left by a predetermined distance from the branch, and the first and second frequency sensing units HMU1 and HMU2 are arranged. Similarly, the two frequency sensing units HMU1 and HMU2 also have a first transmitting and tuning unit tu1 and a first receiving and tuning unit tu1 for resonating the AF frequencies generated by the first transmitter tx1 and the first receiver rx1. Is connected to both rails of the linear track circuit 5, and the other ends of the first transmitter tx1 and the first receiver rx1 are connected to a power supply unit PUS, and the first transmitter tx1 and the first receiver rx1 are also connected to the first and second frequency sensing units HMU1 and HMU2.

Accordingly, in the rail breakage detection system using the frequency comparison according to the embodiment of the present invention configured as described above, in order to detect the trajectory in the T1 section and the T2 section, the AF frequencies are measured by the first and second transmitters tx1 and tx2. And the frequency is resonated in the first and second transmission tuning units tu2 and tu2 '.

Then, the resonant frequency is applied to the first and second reception tuning units tu1 and tu1 ', thereby providing a low impedance to separate the track circuit between the T1 and T2 sections. Therefore, the AF track circuit frequency is transmitted from the T1 section to the T2 section. The AF frequency, which is the transmission frequency, is transmitted to the first and second receivers rx1 and rx2 through the tuning of the first and second reception tuning units tu1 and tu1 ', which are sections T1 and T2. 4 Frequency sensing units (HMU1, HMU2, HMU3, HMU4) are driven to detect the track circuit.
That is, since the non-isolated AF frequency transmitted along the rail in the rail breakage detection system through the frequency comparison according to an embodiment of the present invention is a non-directional frequency, it is transmitted to the left and right along a plurality of parallel rails. When the rail break point 2 is generated in a predetermined portion on the rail as shown in FIG. 1, the non-isolated AF frequency transmitted along the rail is detected by the third and fourth frequency sensing units HMU3 and HMU4 and the first and second frequencies. Since it is possible to detect whether the frequency is received through the units HMU1 and HMU2, it is possible to determine that a break has occurred on the rail and to determine the position of the break.
More specifically, if the rail breakage point 2 is generated in a predetermined portion on the rail as shown in FIG. 1, the frequency generated by the second transmitter tx2 along the rail is a resonance of the second transmission tuning unit tu2 ′. It is loaded on the first rail 100 and the second rail 200 through the non-isolated AF frequency, since a part of the transmission section of the first rail 100 is broken, the first rail 100 Since the frequency is not transmitted through the first rail 100, the first and second frequency sensing units HMU1 and HMU2 may determine that the frequency is not received through the first rail 100. (Send in A direction)
At the same time, the non-isolated AF frequency loaded on the second rail 200 is transmitted to the first and second frequency sensing units HMU1 and HMU2 along the second rail 200 and thus through the second rail 200. It can be determined that the frequency is being received (transmitted in the C direction).
In addition, through the present invention it is possible to determine in which position, for example, the rail breakage occurred between the frequency sensing unit.
At this time, since the frequencies on the first rail 100 and the second rail 200 are different frequencies, it is possible to determine whether or not the tracks of the first and second rails 100 and 200 are abnormal.

In addition, the first, second, third, and fourth frequency sensing units HMU1, HMU2, HMU3, and HMU4 are branched from the connection cables of the respective tuning units connected to the receiver and the transmitter, and thus are connected to the transmitter. Even the 2 and 4 frequency sensing units HMU2 and HMU4 can receive a predetermined frequency.

In order to determine whether the track is damaged or not, the rail loss detection system through frequency comparison according to an embodiment of the present invention includes the first, second, third and fourth frequency detection units (HMU1, HMU2, HMU3, HMU4). The control room PC 10 is provided to receive the frequency detection information from the rail to determine whether the rail is broken and the position of the rail is broken, the control room PC 10 is not merely to the PC located in the control room, but display control unit (not shown) A PC is a generic term for a PC located in a machine room or operating room.

In addition, the control room PC (10) is provided with arrangement information for a plurality of the first, second, third, fourth frequency detection units (HMU1, HMU2, HMU3, HMU4), the frequency detection results of each frequency detection unit Accordingly, a data storage unit 12 is provided which stores DB table information for automatically detecting the cut position of the rail.

In addition, the control room PC (10) has an alarm output unit for outputting an alarm when a rail break occurs according to the frequency detection result received from the first, second, third, fourth frequency sensing units (HMU1, HMU2, HMU3, HMU4) ( 16) is provided, and receives the frequency detection information and the unique number information of the detection unit from the first, second, third, fourth frequency detection unit (HMU1, HMU2, HMU3, HMU4), the loss of the rail according to the frequency detection result A frequency comparator 14 for automatically checking whether or not and the position of a loss is compared by comparing the DB table and controlling the occurrence of an alarm is provided.

The function and operation of the rail breakage detection system through frequency comparison according to an embodiment of the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

The control room PC (10) provided in the rail breakage detection system through the frequency comparison according to an embodiment of the present invention detects the frequency from the first, second, third, fourth frequency detection unit (HMU1, HMU2, HMU3, HMU4) Receives information, and receives frequency generation information from each rack device.

In this state, the control room PC (10), even though the normal frequency generation information is received from the rack device, the specific frequency detection unit (for example, the third rail) on a specific rail (for example, the first rail: 100) of each rack device If the frequency detection information is received through the 4 frequency detection units (HMU3, HMU4), but the frequency is not detected through the first and second frequency detection units (HMU1, HMU2), the control room PC (10) ) May recognize that a rail break has occurred, and the control room PC 10 detects the cutoff position (second and third frequency) through a DB table of the arrangement and frequency detection information of the frequency sensing unit stored in the database 12. Between the units, it is possible to determine the loss on the first rail.

In the case of the layout of FIG. 1, the control room PC 10 may determine that a break has occurred on a rail provided between the second frequency sensing unit HMU2 and the third frequency sensing unit HMU3. The control room PC (10) can quickly generate an alarm for the occurrence of rail breaks to the operator or maintenance personnel through the alarm output unit (16).

On the other hand, the rail breakage detection system through the frequency comparison according to an embodiment of the present invention is not limited to the above embodiment, but various modifications can be made without departing from the technical gist of the present invention.

1 is a diagram illustrating a configuration of an insulated AF track circuit system to which a rail break detection system is applied through frequency comparison according to an embodiment of the present invention;

2 is a block diagram illustrating a circuit configuration of a rail breakage detection system through frequency comparison according to an embodiment of the present invention.

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

HMU1, HMU2, HMU3, HMU4: First 1,2,3,4 frequency sensing unit,

10: control room PC, 12: data storage,

14: frequency comparison unit, 16: alarm output unit,

rx1, rx2: first and second receivers, tx1, tx2: first and second transmitters.

Claims (3)

It is installed on the side of the railway at regular intervals, and receives control signals from the control room PC inside to control and drive various signaling devices and line switching devices while transmitting and receiving data in conjunction with other rack devices adjacent to each other. In the non-isolated track circuit rack device provided with a transmitter and a receiver, A plurality of frequency sensing units (HMU1, HMU2, HMU3, HMU4) connected to the transmitter and the receiver respectively configured in the plurality of rack devices to detect an AF frequency reception state transmitted through a rail; Rail breaking detection system through a frequency comparison, characterized in that consisting of a control room PC (10) for receiving the frequency detection information from the frequency detection unit (HMU1, HMU2, HMU3, HMU4) to determine whether the rail is broken and the rail broken position. According to claim 1, wherein the control room PC (10) is provided with arrangement information for a plurality of frequency sensing units (HMU1, HMU2, HMU3, HMU4) therein, according to the frequency detection result of each frequency sensing unit rail A data storage unit 12 for storing DB table information for automatically detecting a location of a loss; An alarm output unit (16) for outputting an alarm when a rail break occurs in accordance with the frequency detection result received from the frequency detection units (HMU1, HMU2, HMU3, HMU4); Receive frequency detection information and unique number information of the detection unit from the frequency detection unit (HMU1, HMU2, HMU3, HMU4) and automatically determine whether the rail is broken or not according to the frequency detection result by comparing the DB table and alarm Rail breaking detection system through the frequency comparison, characterized in that it comprises a frequency comparison unit for controlling the generation. According to claim 1, wherein the control room PC (10) receives the frequency detection information and the unique number information of the detection unit from the frequency detection unit (HMU1, HMU2, HMU3, HMU4) to determine whether the rail is broken or broken position Rail breaking detection system through the frequency comparison, characterized in that.

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