KR20200039517A - Track circuit safety monitoring device - Google Patents

Abstract

The present invention relates to a track circuit safety monitoring device. More particularly, the present invention relates to a track circuit safety monitoring device which comprises: a signal amplifier for amplifying an ultrasonic signal measured in close proximity to train wheels; a filter for filtering the amplified signal into an ultrasonic signal; an analog-to-digital converter (ADC) for digitally converting the filtered ultrasonic signal; a display device for detecting the periodicity of the ultrasonic signal through the ADC and displaying a damage warning when a specific periodicity is found when the wheel is damaged; a control unit controlling modules and comprising a first logic unit and a second logic unit; an integrated monitoring unit for receiving information from the control unit to calculate a logical sum; and a database for storing ultrasonic signals of each module.

Description

Track circuit safety monitoring device

The present invention relates to a track circuit safety monitoring device, and more particularly, a signal amplifier for amplifying an ultrasonic signal measured in close proximity to a train wheel; A filter for filtering the amplified signal with an ultrasonic signal; An ADC that digitally converts the filtered ultrasonic signal; A display device that detects the periodicity of the ultrasonic signal through the ADC and displays a damage warning when a specific periodicity is found when the wheel is damaged; A control unit controlling the modules and comprising a first logic unit and a second logic unit; An integrated monitoring unit that receives information from the control unit and calculates a logical sum; It relates to a track circuit safety monitoring device consisting of a database that stores the ultrasonic signal of each module.

In general, the scratches or abrasion of the train wheel does not puncture like a car tire, but there are similar phenomena.

Although it looks like a scratch that is nothing to the naked eye, if you actually run on a rail at high speed with these wheels, there will be a lot of shaking and noise, which may cause inconvenience to the trip, and may derail the track.

Therefore, the surface of the wheel is evenly cut to prevent this from happening. This is called 'cutting'.

Specifically, as shown in FIGS. 1 and 2, the freight train (No. 3075), which departed from Dongsan Station and moved to Shin Gwangyang Port Station on August 14, 2014 at 21:31, passed through Jeonju Station. Total 25 cars connected) Derailed to the right in the direction of travel due to damage to the first right wheel of the front car.

However, the driver of the Mugunghwa Lake, which was entering from another track, witnessed the derailment condition, wirelessly notified the train driver of the accident, and the train driver of the accident signed an emergency braking (stop).

On December 12, 2013 (Thursday), at 00:50, the oil freight train (No. 3350) that passed through Ubo Station at a speed of 43 km / h and operated at a speed of approximately 52 km / h toward Tapri Station was # 12. One of the right axles on the second axle of the front truck was damaged.

 As the wheels are damaged, the vehicle passes through the topley station at a speed of 43 km / h and runs at a speed of 62 km / h in the direction of Bibong Station. 220m additional operation, emergency braking).

 The above-mentioned cases are one of many accidents, but there is an important commonality: whether the wheels are cut or not and the aging management and obstacle determination over time have been a problem.

Korean Registered Patent No. 0951900 Korean Registered Patent No. 1360951 Korean Registered Patent # 0961899 Korean Registered Patent No. 1719326

The present invention has been made to solve the above problems, and the present invention allows the integrated monitoring unit to combine logic for various conditions and generate an alarm in preparation for the aging of the track circuit, and the state of the wheel when the train enters. Provides a track circuit safety monitoring device that can warn train derailment in advance by using the camera as a camera to grasp, and when the train is about to enter, transmit an image of an obstacle in front of 230 m before the camera to the integrated monitoring unit. There is a purpose.

The present invention to solve the above problems is a signal amplifier for amplifying the ultrasonic signal measured in close proximity to the wheel of the train; A filter for filtering the amplified signal with an ultrasonic signal; An ADC that digitally converts the filtered ultrasonic signal; A display device that detects the periodicity of the ultrasonic signal through the ADC and displays a damage warning when a specific periodicity is found when the wheel is damaged; A control unit controlling the modules and comprising a first logic unit and a second logic unit; An integrated monitoring unit that receives information from the control unit and calculates a logical sum; It is composed of a database that stores the ultrasonic signals of each module, the first logic unit makes a reference pattern using the ultrasonic signal data previously stored in the database, uses a dynamic time bending algorithm, and the second logic unit wheels A plurality of RFIDs attached to and storing the number of cuts and the surface condition of the wheels; It is installed on the side of the rail, a plurality of reader devices for reading the RFID; including, receiving the number of cuts and the surface condition of the wheels from the reader device, the number of cuts is less than a certain value or the surface condition is less than a standard value If it is bad, it is determined that the plurality of wheels are damaged, and when the sum of the first logic portion and the second logic portion is 1, the integrated monitoring unit generates an alarm to prevent the train from derailing due to a specific damage condition occurring simultaneously. .

The controller determines that the number of cuts of the wheel should be within a certain number of cuts within a certain period of time to be a normal value.

The second logic unit is installed on a track to store the surface state of the wheel surface; including, the control unit receives the state of the surface of the wheel surface, and if the wear rate is less than a certain value than the standard wheel surface wear rate, damage to the plurality of wheels Judge.

The integrated monitoring unit uses the camera as an image device for determining the state of the wheel when the train enters, and, when the train is about to enter, grasps an obstacle in front of 230 m before the camera installed outside the train is difficult to recognize. It is used as a device to transmit the image of the obstacle to the train monitor.

The integrated monitoring unit determines an obstacle by comparing an image captured after the previously operated vehicle starts and an image captured before the currently operating vehicle enters through the camera.

The dynamic time bending algorithm calculates a dynamic time bending value by comparing all ultrasonic signal data stored in the database with a reference pattern, and if the dynamic time bending value is less than a preset threshold value using a threshold value technique, damaged wheel ultrasound It detects the signal pattern.

An alarm module that is installed on the outside of the door of the mechanism box installed in the side area of the rail to sound a warning alarm; further comprising, if a worker recognized by the RFID card is currently working at a location where the train enters, a warning alarm is sounded. Even if the repairer of the box is a person who is not authenticated by the RFID card, a warning alarm sounds.

The present invention made as described above In order to prevent the deterioration of the track circuit, it is possible to prevent the train from derailing due to a combination of logics for various conditions and to generate an alarm so that a specific damage condition occurs simultaneously.

In addition, the present invention can relieve the psychological anxiety felt by the engineer because the engineer can check the situation around the track at a glance in front of 200 m or more through a monitor installed in the train engine room.

1 and 2 are photographs showing an accident situation according to the conventional invention.
3 is a view showing the configuration of a track circuit safety monitoring device according to an embodiment of the present invention.
4 is a view showing an example installed on an actual rail according to an embodiment of the present invention.
5 is a view showing an example installed on an actual rail according to another embodiment of the present invention.
6 is a speed comparison table of obstacle recognition according to another embodiment of the present invention.
7 is a view showing a configuration for exchanging information with an integrated railroad monitoring device according to another embodiment of the present invention.
8 is a view showing a detailed configuration of a power generation unit according to another embodiment of the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Accordingly, the shape of the elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same members may be indicated by the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that are judged to unnecessarily obscure the subject matter of the present invention are omitted.

The present invention creates a reference pattern using the stored ultrasonic signal data, calculates a dynamic time bending value by comparing all ultrasonic signal data stored in the database with a reference pattern using a dynamic time warping algorithm, and It is an invention that detects a damaged wheel ultrasonic signal pattern when the dynamic time bending value analyzed by the controller 50 through the ultrasonic wave received from the ultrasonic sensor 55 is less than a preset threshold.

The present invention is a signal amplifier 51 for amplifying the signal of the ultrasonic sensor 55 measured in close proximity to the wheel of a train, a filter 52 for filtering the amplified signal with an ultrasonic signal, and digitally filtering the filtered ultrasonic signal. ADC 54 to convert, display device 53 that detects the periodicity of the ultrasonic signal through the ADC, and displays a damage warning when a specific periodicity is found when the wheel is damaged, controls the modules and controls the first logic The logic value is received from the second and second logic units, and the control unit 50 controls each module under the command of the integrated monitoring unit 60, receives the information from the control unit, calculates the logical sum, and has a value of "1". In this case, it is composed of an integrated monitoring unit 60 that generates an alarm, and a database that stores ultrasonic signals of each module.

Specifically, when the periodicity of the ultrasonic signal generated by the ultrasonic sensor 55 according to the present invention is detected, and when a certain periodicity is found when the wheel is damaged, the control unit 50 analyzes it as a damaged wheel ultrasonic signal pattern and integrates the monitoring. Notify unit 60. At this time, the integrated monitoring unit 60 determines not only the damage of a specific wheel, but also the entire wheel of the train, and determines whether the train is running.

That is, the first logic unit of the logic unit generates a reference pattern using the ultrasonic signal data previously stored in the database, and compares all ultrasonic signal data stored in the database with a reference pattern using a dynamic time bending algorithm to dynamically adjust the bending time value. Calculate and detect the damaged wheel ultrasonic signal pattern if the dynamic time bending value is greater than the preset limit value using the limit value technique.

The dynamic time bending algorithm is an algorithm for measuring the similarity of wavelengths of two different speeds of the time axis, and is an algorithm mainly used in a conventional automatic speech recognition function.

As illustrated in FIG. 4, the second logic unit is attached to the wheels and is installed on a plurality of RFIDs 510 and rails that store the number of cuts and the surface condition of the wheels, and is connected to the outside by wires 504 , Including a plurality of reader devices 503 for reading the RFID 510, receiving the number of cuts and the surface state of the wheels from the reader device 503, and the number of cuts is less than or equal to a predetermined value, or the surface state is higher than the standard. If it is bad or less, it is judged that the plurality of wheels are damaged.

The RFID 510 uses a device such as an RFID writer to immediately upload the correction information after the operator cuts it.

Through this correction information, it is possible to manage the cutting operation of the wheel within a predetermined period of time to maintain the surface condition of the safe wheel.

As shown in Table 1 below, when the sum of the first logic unit and the second logic unit is 1, the integrated monitoring unit generates an alarm to prevent a train from derailing due to a specific damage condition occurring simultaneously.

For example, if it is determined that the wheel is damaged (logical value 1), and the RFID is read and the wheel cut-off date has passed a predetermined reference time (logical value 1), the integrated monitoring unit 60 indicates that there is a safety problem. Notify etc. At this time, the logic method allows each manager to notify each problem immediately if the logical value is 1, and the logical sum is 1.

In addition, as another embodiment of the present invention, as shown in Table 2 below, when a foreign object is found in the captured image of the camera composed of the camera module 220 (logical value 1) and the line state is determined according to the logic value by DTW determination Then, a warning alarm is sent to the administrator when the logical sum is 1.

5 and 6, the obstacle recognition speed comparison table tested in the present invention shows that the obstacle image recognition capability of a person or camera is almost the same within 100 m, but after 200 m, the camera installed outside the train rapidly decreases the recognition ability, Humans (engineers) almost lost cognitive function at 250m.

These experiments were conducted in consideration of various weathers or external environments, and were based on a distance that can recognize the appearance of foreign matter when the weather is very bad.

In addition, experiments were conducted using cameras with the highest-resolution resolution currently on sale, but the highest performance was maintained only within 200m, and the resolution dropped rapidly beyond that.

Here, the camera (Non-human) generally used a camera installed on the outside of the train, and even if a camera with a different resolution was installed, the identification ability was lowered by 200 m or more by the external environment.

Therefore, the present invention is to detect obstacles quickly by using a camera installed on a rail to assist the camera installed outside the train that has the lowest recognition ability at 230 m (preferably between 200 m and 250 m) or less, and thus derail the train. prevent.

As shown in FIG. 7, the RFID card 71 carried by the individual worker is recognized through the RFID reader 72 including the unique number to provide a unified preventive maintenance system, and the personal information is transmitted to the control unit 50. To deliver.

The unique number is a number uniquely assigned according to the location of the rail and is stored in the railroad facility history information system (database), and can identify the exact location of the RFID reader 72, and the control unit 50 is located at a certain location. If desired, the captured images of the corresponding cameras 21 and 22 can be easily collected and provided to the integrated monitoring unit 60.

The personal information is also the information of the worker, but the control unit 50 is used to check whether the place where the worker is currently working is correct or to confirm the working position for each worker.

The first camera 21 is a module for photographing the outside of the mechanism box door, and images in real time around the mechanism box are transmitted to the control unit 50.

For example, when the RFID card 71 carried by the worker is recognized, the first camera 21 rotates to photograph a worker's work image, and the control unit 50 together with a unique number of the RFID reader 72 send.

In addition, the cameras (21, 22, 503) are sequentially installed along the track to take a track image and an intruder image in front of the train progress direction, and analyze the track image to determine whether there is a preceding train, preceding train operation information, obstacles And detecting the presence of an intruder and whether or not there is an abnormality in the line, and then transmitting the result of the analysis of the line image and the line image to the integrated monitoring unit 60 and the real-time railway safety integrated monitoring and control system 76 through the control unit 50. Thus, the train operation is automatically controlled according to the existence of the preceding train, the presence of an obstacle, and whether there is an abnormality in the track, and the results of the analysis of the track image and the track image are displayed on the monitor 75.

The rail camera 503 is a fastening force inspection sensor 301 of the rail, a rail lift inspection sensor 302, a rail support plate inspection sensor 303, an aging / corrosion inspection sensor 304, a fixed nail inspection sensor 305 Can be replaced with

The second camera 22 is a module that captures an image of the inside of the mechanism box door. In addition to being able to grasp the state of the inside of the mechanism box, the second camera 22 is attached to a position exposed when the door of the mechanism box 73 is opened. The repairer (or operator) of the mechanism box 73 is photographed and transmitted to the control unit 50.

At this time, the information of the RFID card 71 of the repairer of the mechanism box 73 is also transmitted to the control unit 50, so that the user is verified as an authorized repairer.

The alarm module 230 is a device that is installed outside the door of the mechanism box to sound a warning alarm. If the operator recognized by the RFID card 71 is currently working at a location where the train enters, a warning alarm is sounded. The same warning alarm can be sounded even if the repairer of the ship 73 is an unauthorized person.

The control unit 50 is a module for controlling the display of the next station obtained through the cameras 21, 22, and 503 to be displayed on the monitor 75 of the engineer by transmitting the information of the next station to the train, wherein the engineer is the control unit 50 By receiving the identification number and operator information of the recognition module transmitted from and the images around the rails photographed by the cameras 21, 22, and 503, it is possible to grasp at a glance the situation of the currently entering area.

According to another embodiment of the present invention, a job log photographing device attached to a worker stores a work log using a GPS and a timer, and photographs a current work situation, and information received from the work log photographing device according to the worker, location information and time Divided into information and work information, and stored in a database, a work log recording module, a lighting module composed of LEDs attached to the inside and outside of a railroad mechanism box, a face recognition module that is attached to the inside and outside of the railroad mechanism box, and recognizes a face Further comprising a face area calculation module for calculating the face area according to the face information recognized by the recognition module, detects an intruder on behalf of the camera modules 21 and 22 and transmits it to the controller 50.

As shown in FIG. 8, the present invention is a transformer structure 40 composed of a primary coil and a secondary coil connected to a first rail and a second rail, and connected to the first rail in the transformer structure 40. The first terminal (P1) of the primary coil, the first CT (83) coupled by circling the first terminal (P1), the second terminal (P2) of the primary coil connected to the second rail in the transformer structure , A second CT (85) coupled by circling the second terminal (P2), a central terminal (CT; Center Tab) connected to a return line for returning the electric current (return current) from the primary coil of the transformer structure , A third CT 84 coupled by circulating the central terminal CT, and a power generating unit 99 rectifying the current generated by the third CT 84 to generate power. The power generated by the power generation unit is supplied to each of the sensors and the control unit described above.

In addition to this, the rail breaker plate, which measures the passing time and the passing speed of the train, monitors the presence or absence of current detection in the first CT 83 and the second CT 85, and determines if the current is not detected. Governments, etc. may be further connected.

Also, the switching switch 86 selectively connects one impedance bond to one of the plurality of coupling units. The switching switch 86 can be switched remotely by the controller of the signal machine room, and of course can be switched manually by the user.

In addition, the coupling unit integrated monitoring unit 87, 88 has two LC resonant circuits for transmission and reception frequencies, that is, a first LC resonant circuit integrated monitoring unit and a second LC resonant circuit integrated monitoring unit, a condenser for on-board signals, and a power failure. It is composed of a capacitor for capacity compensation, etc., and the first terminal and the second terminal of the coupling unit are connected to the equipment of the signal machine room through an AF cable.

The control unit 50 distributes the power generated by the power generation unit to each of the modules, stores surrounding image information input through the camera modules 20, and a train proceeds in the operation schedule for train information. It is a device that selects the next station from the stations in a direction and requests the information of the selected next station to the external integrated monitoring unit 60.

The controller 50 controls the operation of the motor installed on the lower side for the movement of the camera module 20, and can change the shooting angle and shooting range of the camera.

Therefore, the control unit 50 may provide an integrated monitoring unit 60 by taking a field video when an intruder appears or when an engineer wants a field monitor image.

And when the train running along one direction departs from the starting point, it will run toward the next station among the various stations formed on the operating schedule, and if the starting point of the train is included as station information on the operating schedule, on the operating schedule The second station among the stations is selected as the next station, and the integrated monitoring unit displays information of the next station obtained through the camera module 20 through the camera module 20 and transmits the information of the next station to the train, and displays it on the monitor of the engineer ( 60).

The integrated monitoring unit 60 checks the location of the train and the location of the current train through the location information of the train through GPS or a mobile communication network, and the personal information of the worker received through the RFID card. Limit access.

That is, the integrated monitoring unit 60 is a unique number and current operation for knowing the image information of the next station to arrive, the location of the recognition module 10 transmitted from the control unit 50, etc. obtained through the rail camera 503 in advance. The operator information including the list of workers to work in the paper and the images around the rails photographed by the rail camera 503 are received and displayed on the train interior monitor 75 to three-dimensionally grasp the situation of the currently entering area.

It is possible to perform a mobile communication with a train through the mobile communication network or a wireless internet communication with a train through a wireless internet network. A wireless communication device that performs wireless communication, a wireless communication device using CBTC, and a wireless internet network can be used. The wireless Internet communication device and CDMA network or GSM network can be used.

When the amount of light received by the door of the mechanism box 73 is determined to be less than the set value, the operation of the second camera module 22 is stopped and a guide letter is sent to the operator, and the amount of light received is the If it is less than or equal to the set value, a warning text is sent to the worker, and if it is more than a certain percentage, an emergency character is sent to the worker while the alarm is sounded through the alarm module and transmitted to the inside of the train to be displayed on the monitor 75 of the engineer.

When an angle sensor is attached to the door of the mechanism box 73 and opened over a certain angle, an alarm is sounded through the alarm module to send an emergency text to the operator and transmit it to the train to display it on the monitor 75 of the engineer.

According to an embodiment of the present invention, the difference between the current values inputted through the first CT 83 and the second CT 85 of the trajectory circuit of FIG. 8 is calculated and the current difference value is a reference value for the current unbalance current Comparing with and further comprising a comparison processing unit for determining that the rail is broken when the current difference value exceeds the allowable current unbalance current allowable reference value, and an alarm issuing unit for transmitting alarm information to the equipment room on the ground when the comparison processing unit determines that the rail is broken. Can be.

Specifically, according to an embodiment of the present invention, current data generated from the first CT 83 and the second CT 85 is collected, and the normal data among the collected current data is determined and stored in a database as a reference pattern. , Dividing the collected current data by a predetermined sample size to obtain energy for each frame, digitizing the maximum energy frame in the entire frame for the collected current data and a plurality of neighboring frames, and integrating the monitoring by power line communication It transmits to the unit 60.

For example, in the power line communication according to the present invention, an output voltage is received to use a voltage change detection signal indicating a voltage level change of the power line, and a power line is used as a communication line to multiplex power and communication signals to transmit simultaneously (principle of FDM) The pulse code modulation (hereinafter referred to as PCM), which is used for power line communication, samples the signal level at a uniform period and then quantizes the analog information into digital binary codes.

Meanwhile, the transformer structure 40 of FIG. 7 refers to circuits 85, 86, 87, and 88 electrically connected to the first rail 81 and the second rail 82 of FIG. 8 (a).

The power generation unit 99 for storing power stored by the circuits 85, 86, 87, and 88 is further configured to serve as a power source for each module under the control of the control unit 50.

However, the cause of the power supply failure due to the failure of the accident and the loss of the accessories occurs according to the magnitude of the output voltage of the power generating unit 99 according to the present invention.

In addition, in the existing load-sharing type parallel method, when the first system fails, the remaining two systems are in charge of the entire load, so as the load rate increases from 50% to 100% instantaneously, a large current similar to the starting current is required, and the output voltage of the inverter is instantaneously set. A phenomenon that falls below may occur.

If a failure occurs normally during load-sharing parallel operation and the remaining two systems are in charge of the load, the load current rises instantaneously, and an inrush current greater than the rated capacity of the inverter may occur. Such an inrush current may instantaneously reduce the output voltage of the inverter unit and cause a malfunction in the load system due to an instantaneous power failure or low voltage.

In order to solve this, the present invention is installed on a pair of first-level power generation unit 110 and second-level power generation unit 120 and the pair of first-level power generation unit 110 and second-level power generation unit 120 A pair of output transformers 12a and 12b and a pair of non-stop, redundant switching switches 118 and 128 for bypass installed in the bypass line of the pair of first and second power generation units 110 and 120 ), And the non-disruptive redundant switching switch units 112 and 122 for parallel connection added to the bypass line output side, which is a rear end of the non-disruptive redundant switching switch unit for bypass.

In addition to this, a filter may be further connected to the left side of the static switches 119 and 129 synchronizing with the solar cells 117 and 127 that supply external power. In addition, harvest elements 117-1 and 127-2 may be further included, such as piezoelectric elements capable of supplying AC from the outside.

The output transformers of the first power generation unit 110 and the second power generation unit 120, including the non-sequential redundancy switching switch units 112 and 122 for parallel connection added to the bypass line output side of the present invention The secondary side is connected in series.

Therefore, when an asymmetrical deviation occurs in the output voltages of the rectifiers 114 and 124 of the first and second power generation units and the inverters 116 and 126, only a simple voltage drop occurs so that the cause of the power generation unit fault and the fault current The cause of the load system ripple and power failure accident is cut off.

In addition, at the same time as the FAIL occurs in the first power generation unit, an operation voltage is input to the non-interruptible redundant switching switch units 112 and 122 for parallel connection, and the output power of the normal second generation power generation unit for parallel connection. The output transformer of the first power generation unit in the FAIL state is excited through the non-interruptible redundancy switch units 112 and 122 so that the normal output voltage is continuously supplied.

Even if the difference between the range of the output side voltage of the output transformer of the first power generation unit 110 and the second power generation unit 120 or the output voltage phase of the inverter occurs above a certain value, only a simple voltage change phenomenon occurs.

Specifically, the first-order power generation unit 110 and the second-order power generation unit 120 for the parallel connection of the non-sequential redundancy switching switch units 112 and 122 are random when an asymmetrical deviation occurs in the output voltage of each inverter unit. By simply changing, only a simple voltage drop can occur to prevent the cause of the fault and the ripple of the load system of the fault current and the cause of the power failure. That is, even if the difference between the range of the output side voltage of the output transformer of the first power generation unit 110 and the second power generation unit 120 or the output voltage phase of the inverter unit exceeds a certain value, only a simple voltage variation phenomenon occurs. do.

This effect was not achieved at all in the prior invention, and the input-side voltage transmitted from the third CT 84, 84 'was instantaneously raised due to an unexpected cause, and the first or second power generating unit failed. It is not possible to cope with the reverse input circulating current phenomenon that causes or damages the rectifying parts 114 and 124 and the inverter parts 116 and 126, or prevents an overload current phenomenon that increases proportionally as the difference in output voltage phase increases.

10: recognition module
20: camera
21: first camera
22: second camera
30: alarm module
40: transformer structure
50: control unit
60: integrated monitoring department
71: RFID card
72: RFID reader
75: monitor
76: Real-time railway safety integrated monitoring and control system
81: first rail
82: second rail
83: 1st CT
84: third CT
85: second CT
86: transfer switch
87, 88: Coupling unit integrated monitoring unit
503: rail camera
504: electric wire

Claims (7)

A signal amplifier fixed to the side of the rail and amplifying the ultrasonic signal measured at the wheel of the train; A filter for filtering the amplified signal with an ultrasonic signal; An ADC that digitally converts the filtered ultrasonic signal; To detect the periodicity of the ultrasonic signal through the ADC, and to detect the specific periodicity and the number of cuts of the wheel and the surface condition information when the wheel is damaged in the periodicity of the ultrasonic signal, to display a damage alert on the display device A control unit composed of a logic unit and a second logic unit; An integrated monitoring unit that receives information from the control unit and calculates a logical sum; It consists of a database that stores the ultrasonic signal,
The first logic unit generates a reference pattern using ultrasonic signal data previously stored in the database, converts the ultrasonic signal using a dynamic time bending algorithm, and determines that the algorithm value is 1 or more if the algorithm value is greater than or equal to a certain value. If it is, it is judged as the logical value 0,
The second logic unit is attached to the wheels a plurality of RFID for storing the number of cuts of the wheel and the surface state information; It is installed on the side of the rail, a plurality of reader devices for reading the RFID; including, receiving the number of cuts and the surface condition of the wheels from the reader device, the number of cuts is less than a certain value or the surface condition is less than a standard value If it is bad, it is judged as logical value 1.
When the sum of the logic values of the first logic unit and the second logic unit is 1, the integrated monitoring unit generates an alarm,
Tracking circuit safety monitoring device, characterized in that the integrated monitoring unit combines logic for a plurality of conditions to generate an alarm to prevent multiple trains from being derailed due to simultaneous occurrence of a plurality of damage conditions. According to claim 1,
The control unit is a track circuit safety monitoring device characterized in that it is determined that the number of cuts of the wheel is within a certain number of cuts within a certain time to be a normal value. According to claim 1,
The second logic unit is installed on a track to store the surface state of the wheel surface; including, the control unit receives the state of the surface of the wheel surface, and if the wear rate is less than a certain value than the standard wheel surface wear rate, damage to the plurality of wheels Track circuit safety monitoring device characterized in that the judgment. According to claim 3,
The integrated monitoring unit,
The camera is used as an imaging device to determine the condition of the wheel when the train enters, and when the train is about to enter, the image of the obstacle is captured so that the camera installed outside the train recognizes an obstacle in front of 230m that is difficult to recognize. Track circuit safety monitoring device characterized in that it is used as a device to transmit to the train monitor. According to claim 3,
The integrated monitoring unit,
A track circuit safety monitoring device characterized by determining an obstacle by comparing an image captured after the vehicle previously operated by the camera and an image captured before the currently operating vehicle enters. According to claim 1,
The dynamic time bending algorithm,
Comparing the ultrasonic signal through the ADC with a reference pattern, calculates a dynamic time bending value, and detects a damaged wheel ultrasonic signal pattern if the dynamic time bending value is less than a preset limit value using a limit value technique. Track circuit safety monitoring device. According to claim 1,
An alarm module that is installed on the outside of the door of the mechanism box installed in the side area of the rail to sound a warning alarm; further comprising, if a worker recognized by the RFID card is currently working at a location where the train enters, a warning alarm is sounded. A track circuit safety monitoring device characterized in that a warning alarm is sounded even if the repairer of the box is a person who is not authenticated by the RFID card.

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