KR101983550B1 - 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 comprising: a signal amplifier for amplifying an ultrasonic signal measured in proximity to a wheel of a train; a filter for filtering the amplified ultrasonic signal; an ADC for converting the filtered ultrasonic signal into a digital signal; a display device which detects periodicity of the ultrasonic signal through the ADC and displays a damage alert when specific periodicity that appears when the wheel is damaged is found; a control unit for controlling the modules and including a first logic portion and a second logic portion; an integrated monitoring unit for receiving information from the control unit and calculating a logical sum; and a database for storing the ultrasonic signal of each of the modules.

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 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 for converting the filtered ultrasound signal into digital; A display device that detects a periodicity of the ultrasonic signal through the ADC and displays a damage alert when a specific periodicity that appears when the wheel is damaged is found; A control unit for controlling the modules and including a first logic unit and a second logic unit; An integrated monitoring unit receiving information from the control unit and calculating a logical sum; It relates to a track circuit safety monitoring device comprising a database for storing the ultrasonic signals of each module.

Generally, scratches and wear on the wheels are not as flat as car tires, but they are similar.

Although it looks like nothing but scratches, the wheels run at high speeds on the rails, causing a lot of shaking and noise, which can make the trip uncomfortable.

Therefore, to prevent this from happening, the wheels are cut evenly, which is called 'correction'.

Specifically, as shown in FIGS. 1 and 2, a freight train (No. 3075) operating from Shinsan to Singwangyang Station departing from Dongsan Station on 21:31 August 14, 2014 is passing through Jeonju Station. 25 vehicles in total) The vehicle derailed to the right in the forward direction due to the first right wheel breakage.

However, the Mugunghwa Lake driver, who was entering from another track, witnessed the derailment, informed the train operator of the accident by radio, and the train operator of the accident concluded the emergency braking.

On December 12, 2013 (Thu.) around 00:50, the 12th oil freight train (No. 3350) was passing through Ubo Station at 43km / h and running at about 52km / h in the direction of Tapli Station. One of the wheels on the right side of the second wagon of the wagon was broken.

 With the wheels broken, the tram stops at 43km / h and runs at the speed of 62km / h in the direction of Bibong.The second wheel of the second wagon of the accident wagon derails to the left in the direction of travel (derailed). 220m additional operation, emergency braking).

 The above-mentioned cases are one of many accidents, but they have important commonalities, such as whether the wheels are depressed, whether it is management of aging over time, or whether obstacles are judged.

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

The present invention has been made to solve the above problems, the present invention is to provide an integrated monitoring unit combines logic for various conditions and generates an alarm in preparation for the aging of the track circuit, the state of the wheel when the train enters It provides a track circuit safety monitoring device that can warn the train in advance of the train by using the camera as a camera to identify the train, and when the train is about to enter, passing the image of the obstacle in front of the front of the camera 230m to the integrated monitoring unit. The purpose is to.

The present invention to solve the above problems is a signal amplifier for amplifying the ultrasonic signal measured close to the wheel of the train; A filter for filtering the amplified signal with an ultrasonic signal; An ADC for converting the filtered ultrasound signal into digital; A display device that detects a periodicity of the ultrasonic signal through the ADC and displays a damage alert when a specific periodicity that appears when the wheel is damaged is found; A control unit for controlling the modules and including a first logic unit and a second logic unit; An integrated monitoring unit receiving information from the control unit and calculating a logical sum; The first logic unit comprises a database for storing the ultrasonic signals of each module, wherein the first logic unit creates a reference pattern by using the ultrasonic signal data pre-stored in the database, and uses a dynamic time bending algorithm. A plurality of RFIDs attached to the memory to store the number of cuts and the surface state of the wheels; A plurality of reader devices installed on a side of a rail and reading the RFID, and receiving a number of cuts and a surface state of the wheels from the reader device, the number of times of cuts being a predetermined value or 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 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 at the same time. .

The second logic unit is installed on the track for storing the surface state of the wheel surface, including the control unit receives the state of the wheel surface of the wheel is bad or less than a predetermined value than the wear rate of the standard wheel surface surface damage to the plurality of wheels To judge.

The integrated monitoring unit uses the camera as an image device for detecting the state of the wheel when the train enters, and when the train is going to enter, to identify obstacles ahead of 230m before the camera outside the train is difficult to recognize. It is used as a device for transmitting the image of the obstacle to the train monitor.

The integrated monitoring unit determines an obstacle by comparing an image photographed after the vehicle previously driven by the camera and the image photographed before the currently operating vehicle enters.

The dynamic time bending algorithm calculates a dynamic time bending value by comparing all ultrasonic signal data stored in a database with a reference pattern, and if the dynamic time bending value is less than or equal to a preset limit value using a threshold value technique, the damaged wheel ultrasound. Detect that this is a signal pattern.

The alarm module is installed on the outer side of the door of the instrument box installed in the side area of the rail to sound a warning alarm; further comprising, the RFID card is recognized if the operator is currently working in the position where the train enters the alarm alarm, the A warning alarm also sounds if the repairman of the instrument box is a person not authorized by the RFID card.

The present invention made as described above can prevent the train from derailing by combining the logic for the various conditions in preparation for the deterioration of the track circuit and generating an alarm so that a certain damage condition occurs at the same time.

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

1 and 2 are photographic diagrams showing an accident situation according to the related art.
3 is a view showing the configuration of a track circuit safety monitoring apparatus according to an embodiment of the present invention.
4 is a view showing an example installed on the actual rail according to an embodiment of the present invention.
5 is a view showing an example installed on the actual rail according to another embodiment of the present invention.
6 is an obstacle recognition speed comparison table according to another embodiment of the present invention.
7 is a view showing a configuration for sending and receiving information with the railway integrated monitoring apparatus according to another embodiment of the present invention.
8 is a diagram illustrating a detailed configuration of a power generation unit and the like 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. Embodiment of the present invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings and the like may be exaggerated to emphasize a more clear description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that are determined 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 the ultrasonic signal data stored in the database with the reference pattern using a dynamic time warping algorithm, When the dynamic time bending value obtained by analyzing the ultrasonic wave transmitted from the ultrasonic sensor 55 through the controller 50 is less than or equal to a preset limit value, the present invention detects that the damaged wheel ultrasonic signal pattern is damaged.

The present invention provides a signal amplifier 51 for amplifying a signal of an ultrasonic sensor 55 measured in close proximity to a wheel of a train, a filter 52 for filtering an amplified signal with an ultrasonic signal, and digitally filtering the filtered ultrasonic signal. ADC 54 for converting, display device 53 for detecting the periodicity of the ultrasonic signal through the ADC, and displaying a damage alert if a particular periodicity that appears when the wheel is damaged, controls the modules and first logic The controller 50 receives a logic value from the unit and the second logic unit, receives a command from the integrated monitoring unit 60 to control each module, receives information from the controller, calculates a logical sum, and calculates a value of "1". In this case, the integrated monitoring unit 60 to generate an alarm, and a database for storing the ultrasonic signal of each module.

In detail, when the periodicity of the ultrasonic signal generated by the ultrasonic sensor 55 according to the present invention is detected, and a specific periodicity that appears when the wheel is damaged is found, the controller 50 analyzes it as the damaged wheel ultrasonic signal pattern and monitors the integrated signal. The part 60 is notified. At this time, the integrated monitoring unit 60 not only damages the specific wheels, but also integrally observes the wheels of the entire train and finally determines whether the train is running.

That is, the first logic unit of the logic unit creates a reference pattern by using the ultrasonic signal data previously stored in the database, and compares all the ultrasonic signal data stored in the database with the reference pattern by using the dynamic time bending algorithm to compare the dynamic time bending value. If the dynamic time bending value is more than the preset limit value, it detects the damaged wheel ultrasonic signal pattern.

This dynamic time bending algorithm is an algorithm that measures the similarity of wavelengths of two different speeds of similar time axis, and is an algorithm mainly used for a conventional automatic speech recognition function.

As shown in FIG. 4, the second logic unit is attached to the wheels to store the number of cuts and the surface state of the wheels, a plurality of RFIDs 510 are installed on the side of the rail, and are connected to the outside by wires 504. And a plurality of reader devices 503-1 that read the RFID 510, and receive the number of cuts and the surface state of the wheels from the reader device 503-1. Is less than a predetermined value than the standard, it is determined that the plurality of wheels damage.

The RFID 510 uploads the correction information remotely immediately after the operator cuts the device using a device such as an RFID writer.

Through this correction information, the wheel cutting operation can be managed for a certain period of time or less to maintain a safe surface condition of the 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 at the same time.

For example, if it is determined that the wheel is damaged (logical value 1), and the cut date of the wheel has passed the predetermined reference time by reading the RFID (logical value 1), the integrated monitoring unit 60 indicates that there is a safety problem. To the back. At this time, the logic method is that if each logic value is 1, the logical sum is 1, so that the administrator can be notified of each problem immediately.

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

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

This experiment was carried out in consideration of various weather conditions and external environments. If the weather was very bad, the experiment was based on a distance that could identify the appearance of foreign matter.

In addition, experiments were carried out using the highest resolution cameras on the market, but the peak performance was normally maintained only within 200m, and the resolution dropped rapidly.

Here, the camera (Non-human) generally used a camera that is installed outside the train, and even if a camera having excellent resolution is installed, the identification ability is lowered at 200 m or more due to the external environment.

Accordingly, the present invention provides a quick way to detect obstacles using a camera mounted on a rail to assist the camera mounted outside the train that exhibited the lowest recognition capability at 230 m (preferably between 200 m and 250 m) and thus the train derailed. prevent.

As shown in FIG. 7, the RFID card 71, which is held by an individual worker, is recognized through an RFID reader 72 including a unique number in order to provide a unified preventive maintenance system. To pass.

The unique number is a number uniquely assigned according to the position of the rail and stored in a railway facility history information system (database). The exact position of the RFID reader 72 can be grasped, and the controller 50 is located at a predetermined position. 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 information of the worker, but the control unit 50 is used to check whether the place where the worker is currently working or to determine the working position for each worker.

The first camera 21 is a module for photographing the outside of the door of the instrument box, and captures an image of the vicinity of the instrument box in real time and transmits it to the controller 50.

For example, when the RFID card 71 possessed by the worker is recognized, the first camera 21 is rotated to capture a work image of the worker, and the controller 50 is provided with the unique number of the RFID reader 72. send.

In addition, the first camera, the second camera and the rail cameras (21, 22, 503) are sequentially installed along the track to take the track image and the intruder image in front of the train progress direction, and analyze the track image of the preceding train After detecting the presence, the preceding train operation information, the presence of obstacles and intruders, and the abnormality of the track, the result of analyzing the track image and the track image through the control unit 50 and the real-time railroad safety By transmitting to the integrated monitoring control system 76, the train operation is automatically controlled according to the presence of the preceding train, the presence of obstacles, and the abnormality of the track, and receive the track image and the track image analysis result to be displayed on the monitor 75. do.

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The second camera 22 is a module for capturing an inner image of the door of the instrument box, and is able to grasp the state of the interior of the instrument box and is attached to a position immediately exposed when the door of the instrument box 73 is opened. An image of a repairman (or worker) for the mechanical box 73 is photographed and transmitted to the controller 50.

At this time, the information on the RFID card 71 of the repairman of the mechanical box 73 is also transmitted to the control unit 50 to check whether the repairer is an authorized repairer.

The alarm module 230 is a device installed outside the door of the instrument box to sound a warning alarm, the RFID card 71 if the operator is currently working in the position where the train enters the alarm alarm, the instrument The same warning alarm can also be sounded if the repairman of the box 73 is an unauthorized person.

The controller 50 is a module for controlling to display the information of the next station obtained through the cameras (21, 22, 503) in the train to display on the monitor 75 of the engineer, the engineer 50 By receiving the unique number of the recognition module transmitted from the operator information and the image around the rail taken by the cameras (21, 22, 503) can be grasped at a glance the situation of the area currently entering.

As another embodiment of the present invention attached to the worker to store the job log with a GPS and a timer, the job log recording device for recording the current work situation, the location information, time according to the information received from the job log recording device Work log recording module for dividing information and work information into database, lighting module consisting of LEDs attached to the inside and outside of railroad side mechanism box, face recognition module attached to the inside and outside of railroad side mechanism box to recognize face, the face The apparatus further includes a face area calculating module that calculates a face area according to the face information recognized by the recognition module, and detects an intruder on behalf of the camera modules 21 and 22 and transmits the detected intruder to the controller 50.

As shown in FIG. 8, the present invention provides a transformer structure 40 including a primary coil and a secondary coil connected to a first rail and a second rail, and 1 connected to the first rail in the transformer structure 40. The first terminal P1 of the primary coil, the first CT 83 which is coupled around the first terminal P1, and the second terminal P2 of the primary coil connected to the second rail in the transformer structure. And a second CT 85 wound around the second terminal P2, and a center terminal CT connected to a return wire for returning the electric current (return current) from the primary coil of the transformer structure. The third CT 84 may be coupled to the center terminal CT by winding, and the power generator 99 may generate power by rectifying the current generated by the third CT 84. Power generated by the power generation unit is supplied to each of the above-described sensors, the control unit and the like.

In addition, a ground breaking plate that measures the passing time and passing speed of the train, and a rail breaking plate that monitors the presence or absence of current sensing in the first CT 83 and the second CT 85 and determines that the rail is broken if no current is detected. Government may be further connected.

Alternate switch 86 also selectively connects one impedance bond to one of the plurality of coupling units. The transfer switch 86 can be remotely switched by a controller in the signal machine room, or of course can also be manually switched by a user.

In addition, the coupling unit integrated monitoring units 87 and 88 include two LC resonant circuits for transmitting and receiving frequencies, that is, a first LC resonant circuit integrated monitoring unit and a second LC resonant circuit integrated monitoring unit, a phase difference capacitor, and a power failure. Capacitive compensation capacitors, etc., the first terminal and the second terminal of the coupling unit is connected to the equipment of the signal machine room via the AF cable.

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

The controller 50 may control the operation of the motor installed in the lower part for the movement of the camera module 20, and may change the photographing angle and the photographing range of the camera.

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

When the train running in one direction starts from the starting point, the train runs toward the next station among the various stations formed on the running schedule, and when the starting point of the train is included as the station information on the running schedule, The second station of the station is selected as the next station, the integrated monitoring unit for transmitting the information of the next station obtained through the camera module 20 for the information of the selected next station into the train and displayed on the monitor of the engineer ( 60).

The integrated monitoring unit 60 checks the position of the train and the current train position by checking the position information of the train through GPS or a mobile communication network and the information of the individual worker received through the RFID card and the current train position. Restrict access

That is, the integrated monitoring unit 60 is a unique number and current work for knowing the image information of the next station to arrive, previously obtained through the rail camera 503, the position of the recognition module 10 transmitted from the controller 50, and the like. Worker information including a list of workers to work in the area and the image of the rail around the rail camera 503 is received and displayed on the train internal monitor 75 to grasp the situation of the current entry area in three dimensions.

It is possible to perform mobile communication with the train through the mobile communication network or wireless Internet communication with the train through the wireless Internet network, a wireless communication device for performing wireless communication, a wireless communication device using a CBTC, a wireless Internet network The wireless Internet communication apparatus and the CDMA network or the GSM network which were used can be used.

When the door of the instrument box 73 is opened and the amount of light received 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 worker, and the amount of light received is If the set value is less than or equal to a certain percentage, a warning text is sent to the worker, and if a certain percentage or more is sent, the alarm text 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 the angle sensor is attached to the door of the instrument box 73 and opened at a predetermined angle or more, an alarm is sent through the alarm module and an emergency text is sent to the worker and transmitted to the train to be displayed on the monitor 75 of the engineer.

According to an embodiment of the present invention, the difference between the current values input through the first CT 83 and the second CT 85 of the track circuit of FIG. 8 is calculated, and the current difference value is the return current unbalanced current tolerance reference value. And a comparison processing unit for judging rail loss when the current difference value exceeds the reference current unbalanced current allowance value, and an alarm command unit for transmitting alarm information to the ground equipment room when the comparison processing unit determines that the rail is broken. Can be.

Specifically, according to an embodiment of the present invention to collect the current data generated in the first CT (83) and the second CT (85), to determine the normal data of the collected current data is stored in the database as a reference pattern And dividing the collected current data by a predetermined sample size to obtain energy for each frame, digitizing a maximum energy frame and a plurality of neighboring frames of the entire frame for the collected current data, and performing the integrated monitoring by power line communication. Transfer to section 60.

For example, in the power line communication according to the present invention, an output voltage is received and a voltage change detection signal indicating a change in the voltage level of the power line is used, and the power line is used as a communication line to multiplex and transmit power and communication signals simultaneously (the principle of FDM). Pulse code modulation (PCM), which is used for power line communication, samples signal levels at uniform intervals 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 generator 99 for storing the 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 controller 50.

However, the cause of faulty power supply due to a fault occurring due to the magnitude of the output voltage of the power generating unit 99 and the burnout of the accessory according to the present invention occurs.

In addition, the existing load-sharing parallel type system is responsible for the entire load when the first system fails, and as the load ratio increases from 50% to 100%, a large current similar to the starting current is required, and the output voltage of the inverter unit is momentarily set. Falling phenomenon may occur below.

Normally, if the fault occurs during the load sharing parallel operation and the remaining two systems are responsible for the load, the load current may increase momentarily, and an inrush current larger than the rated capacity of the inverter may occur. Such inrush current may momentarily reduce the output voltage of the inverter unit, which may cause an equipment failure due to instantaneous power failure or LOW VOLTAGE in the load system.

In order to solve this problem, the present invention includes a pair of first-generation power generation unit 110 and a second-generation power generation unit 120, and a pair of first-generation power generation unit 110 and a second-generation power generation unit 120. Bypass redundancy switching unit 118, 128 for bypass provided in a pair of output transformers (12a, 12b) and the bypass line of the pair of first power generator 110 and second power generator 120. ), And a parallel linkageless redundancy switch unit 112 and 122 added to the bypass line output side which is the rear end of the bypassless stepless transfer switch unit for bypass.

In addition, a filter may be further connected to the left side of the static switches 119 and 129 for synchronizing with the solar cells 117 and 127 for supplying external power. It may also further include harvesting elements 117-1, 127-2 such as piezoelectric elements capable of supplying alternating current from the outside.

Including the stepless redundant switching switch unit 112, 122 for parallel linkage is added to the bypass line output side of the present invention, the output transformer of the first power generation unit 110 and second power generation unit 120 The secondary side is connected in series.

Therefore, when asymmetrical deviations occur in the output voltages of the rectifiers 114 and 124 and the inverter units 116 and 126 of the first and second power generation units, only a simple voltage drop occurs, causing the power generation unit defects and the fault current. Shut off the load system and cause of power failure.

In addition, when the FAIL occurs in the first generation power generation unit and at the same time uninterrupted, the operation voltage is input to the uninterruptible redundant switch unit 112 and 122 for parallel linkage, and the output power of the second generation power generation unit is normal for parallel connection. Through the stepless redundancy switch unit 112 and 122, the output transformer of the first power generation unit in the FAIL state is excited to allow the normal output voltage to be continuously supplied.

Even when the range of the output transformer output side voltage or the inverter output voltage phase of the first power generation unit 110 and the second power generation unit 120 is greater than or equal to a predetermined value, only a simple voltage variation occurs.

Specifically, the stepless redundancy transfer switch units 112 and 122 for parallel connection between the first power generation unit 110 and the second power generation unit 120 are random when asymmetrical deviations occur in the output voltages of the inverter units. It is possible to cut off the cause of fault and the load system of fault current and the cause of power failure by causing only a simple voltage drop to occur. That is, even if a difference occurs in the range of the output transformer output side voltage or the inverter output voltage phase of the first power generator 110 and the second power generator 120 or more than a predetermined value, only a simple voltage fluctuation occurs. do.

This effect was not produced at all in the related art. The input side voltage transmitted from the third CTs 84 and 84 'is instantaneously raised due to an undesired cause, so that the first or second power generation unit generates a FAIL. It is not possible to cope with the reversed circulating current phenomenon that causes or damages the rectifiers 114 and 124 and the inverter units 116 and 126, or prevents an overload current phenomenon that increases proportionally as the output voltage phase difference between them becomes larger.

10: recognition module
20: camera
21: the first camera
22: second camera
30: alarm module
40: transformer structure
50: control unit
60: integrated monitoring unit
71: RFID Card
72: RFID Reader
75: monitor
76: Real time railroad safety monitoring system
81: the first rail
82: second rail
83: first CT
84: third CT
85: second CT
86: transfer switch
87, 88: coupling unit integrated monitoring unit
503: Rail Camera
503-1: Reader Device
504: wires

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 ultrasound signal; An ADC for converting the filtered ultrasound signal into digital; Detecting a periodicity of the ultrasonic signal through the ADC and displaying a damage alert on the display device when a specific periodicity and the number of times of the wheel cut and the surface state information which are found when the wheel is damaged in the periodicity of the ultrasonic signal are found; A control unit comprising a logic unit and a second logic unit; An integrated monitoring unit receiving information from the control unit and calculating a logical sum; Comprising a database for storing the ultrasonic signal,
The first logic unit generates a reference pattern by using the ultrasonic signal data stored in the database in advance, and converts the ultrasonic signal by using a dynamic time bending algorithm. If it is, the logical value is 0.
The second logic unit includes a plurality of RFIDs attached to the wheels to store the number of times of cutting of the wheels and surface state information; It is installed on the side of the rail, a plurality of reader devices for reading the RFID; including the number of cuts and the surface state of the wheel received from the reader device, the number of cuts is a certain value or less than a standard value If it is bad, it is determined as logical value 1.
The integrated monitoring unit generates an alarm when the sum of the logic values of the first logic unit and the second logic unit is 1,
The integrated monitoring unit combines logic for a plurality of conditions to generate an alarm, thereby preventing a train from derailing by generating a plurality of damage states simultaneously
The second logic unit is installed on the track for storing the surface state of the wheel surface, including the control unit receives the state of the wheel surface of the wheel is bad or less than a predetermined value than the wear rate of the standard wheel surface surface damage to the plurality of wheels Judge,
The integrated monitoring unit,
The camera is used as an image device for identifying the state of the wheel when the train enters, and when the train is about to enter, the image of the obstacle is used to identify the obstacle in front of the camera 230m difficult to recognize. Track circuit safety monitoring device, characterized in that used as a device for transmitting to the train monitor. delete delete delete The method of claim 1,
The integrated monitoring unit,
The safety circuit of the track circuit, characterized in that the obstacle is determined by comparing the image taken after the departure of the vehicle previously run through the camera and the image taken before the current vehicle is entering. The method of claim 1,
The dynamic time bending algorithm is
Computing the dynamic time bending value by comparing the ultrasonic signal through the ADC with a reference pattern, and detects that the damaged wheel ultrasonic signal pattern if the dynamic time bending value is less than the predetermined threshold value using a threshold method. Track circuit safety monitoring device. delete

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