KR200391711Y1 - AF Track Circuit - Google Patents

Abstract

The present invention relates to an AF track circuit device belonging to the ground equipment of the automatic train control system (ATC), which is a kind of signal security equipment,

In constructing the AF track circuit device, the CPU part, the transmitter part, and the receiver part of the AF track circuit part are all divided into two relays, and the monitoring part has a system display and storage function so that the fault occurs in the first device during operation of the device. In case of occurrence, it can be automatically transferred to the second system without affecting the operation of the system to ensure safe operation of the train,

By additionally providing a system data storage device to store the magnetic data in the system data storage device so that the user can use the system data at any time simply download the data using the communication port, if necessary,

By applying PLD and transmitter CPU which maximize the high efficiency and low power of transmitter, it digitizes it and blocks existing failure factors in advance.

It displays the transmission level, reception level, track frequency, cab frequency, code frequency, etc. on the monitoring part, and displays the fault information of each card installed in the device on the front so that the user can visually monitor the system without any additional measuring instruments and equipment. At the same time, it is possible to store the transmit / receive level and fault information inside the device, and to download and use the desired information according to the user's convenience.

An AF track circuit device characterized in that the card of the transmitter and the receiver can be used regardless of the frequency.

Description

AF track circuit device {AF Track Circuit}

(Technical area to which the design belongs)

The present invention relates to an AF track circuit device belonging to the ground installation of the automatic control system (ATC), a kind of signal security equipment.

AF track circuit device is a device that automatically detects the position of the train in all tracks using the railroad and serves as a pipeline for transmitting information from the ground to the vehicle.

The AF track circuit device is configured to transmit track information on the ground and receive track information on a vehicle using AF (Audio Frequency).

The AF track circuit device electrically separates tracks using impedance bonds for each track, and tracks are divided into oil-insulated sections and non-insulated sections.

The AF track circuit device transmits a preset frequency to one track circuit, and the output frequency is modulated by the track detection frequency, the on-vehicle signal frequency, and the train speed code frequency. It is received by the receiver.

The received signal detects the orbital frequency and speed code frequency by demodulation, compares the orbital frequency and code frequency with the transmitted signal, checks the reception level if the information is consistent, and operates the orbital relay if the level is normal. No abnormality is indicated.

In addition, when the train enters the track, it transmits the vehicle signal and transmits the speed code and information instructed by the ground.

(Explanation of background technology)

The signal security facility is located on a site with large railroads and supports on-site signal safety, train automatic control devices such as ATS and ATC for safe driving of electric trains, and movement of all trains on each site. There is a comprehensive train operation control device that controls and manages the traffic.

On-site signal security device is composed of interlocking device, track circuit device, automatic occlusion device, power supply device, signal device, train equipment.

The AF track circuit device serves as a kind of the track circuit device to detect a train on a railroad track.

In addition, the automatic train control device can be divided into a vehicle and a ground apparatus, AF track circuit device is a device belonging to the above ground apparatus.

The Automatic Train Control System (ATC) protects trains from obstacles on tracks that interfere with train operation, vehicles running in front of the trains, and safely decelerates or stops trains in spite of the negligence or error of engineers. As a device that prevents serious accidents in advance, it is a device that controls direct train operation speed by receiving and reading driving information transmitted from a ground rail.

Therefore, the AF track circuit device examines the train operating conditions on the ground and performs a function of transmitting a driving command signal necessary for driving the electric vehicle from the ground (device) to the vehicle (device) when there is no obstacle in the operation of the electric car.

The AF track circuit device as described above is composed of a transmitter, a tuning panel, a receiver, and a monitoring unit.

The transmitter consists of an output and an oscillator.

The oscillator generates a train detection frequency required for a specific trajectory circuit, and generates an indication speed code frequency of a square wave according to signal manifestation conditions.

The output unit receives the train detection frequency and the indication speed code frequency output from the oscillator, receives the carrier frequency for the on-vehicle signal from the CAB oscillator, modulates and amplifies the signal, and transmits a signal to an impedance bond through a tuning panel. .

The tuning panel is installed on the back of the card pile and consists of two completely independent tuning circuits. The tuning switch compensates the capacitance of the cable installed between the machine room and the impedance bond by appropriately adjusting the selection switch to improve the signal transmission characteristics. Performs a function

The receiving unit includes a receiving control unit, a synchronous rectifying unit (or a receiving synchronous rectifying unit), a track relay driver, and a track relay unit.

When the train does not occupy the track circuit, the train detection frequency is applied together with the adjacent track transmission frequency at the boundary point of the track circuit with impedance bond, and passes through half of the receiving tuning panel to the reception control unit in the same card file. do.

The reception control unit tunes, amplifies, and demodulates the received train detection frequency, reproduces a square wave having a level proportional to the received magnitude, and sends it to the reception synchronous rectification unit.

The receiving synchronous rectification unit synchronously rectifies the signal by comparing the received input signal with the transmitted indication speed code frequency.

The rectified DC output is output to the orbital relay driver to excite the orbital relay to indicate an unoccupied state of the orbital circuit.

The AF track circuit device configured as described above performs one continuous operation by the role of each component.

That is, each of the components can be seen to complete a system through the steps of the oscillator, amplification unit, output unit, comparison unit, etc. by the configuration of the analog circuit.

However, although the characteristics of each device constituting the system are maintained at the initial stage of installation, the longer the period of use, the greater the generation of obsolete elements in proportion to the period of use, and many components constituting the circuit. As the number of components increases, the number of faults increases in proportion to the number of components. In addition, the time for troubleshooting is increased.

Therefore, it is necessary to simplify the circuit to reduce the occurrence of the failure, and also to allow the user to check the overall operating state of the system at a glance, so that the failure can be found quickly and dealt with promptly. have.

In addition, it is possible to always check the change in the level and frequency of the AF track circuit device for each track by checking the data and predict the failure as well as the occurrence of the current failure and prevent the occurrence of the failure in advance. It is necessary to reduce the occurrence.

(Conventional technology)

In the conventional AF track circuit apparatus, the receiver and the oscillator are composed of two relays, but the transmitter is configured and used as a single system.

However, the conventional technology configured as described above,

There is a problem that the transmission unit failure leads to a failure of the entire system, which causes a problem in the train operation.

In addition, even when measuring the level and frequency of the AF track circuit device, the user needs to measure the transmission and reception level and frequency directly by using a measuring instrument. There was a lot to give cause.

In addition, there is a problem that the value of the regular measurement data that is currently recorded changes from time to time depending on the measuring person or measuring instrument. Therefore, since the reliability of the measurement data is lowered, it is difficult to use it as data for estimating the failure cycle of the system. In addition, there is a problem that it is impossible to predict the failure in advance by determining the trend of data change using such measurement data.

In addition, when a user measures data using a measuring instrument, even if only a slight carelessness in a narrow space, this immediately leads to the fall of the track tracker, causing artificial failure, causing a huge loss in train operation.

The purpose of the present application for solving the above problems,

First, in constructing the AF track circuit device, the CPU, transmitter, and receiver parts are all divided into two relays among the components of the AF track circuit, and the monitoring unit has only the system display and storage functions. In the event of a fault in the system, it is possible to automatically switch over to the second system without affecting the operation of the system to ensure safe operation of the train.

Secondly, a system data storage device is additionally provided so that magnetic data can be stored in the system data storage device so that the system data can be used whenever the user only needs to download the data using the communication port.

Third, by digitizing the PLD and the transmitting CPU that maximize the high efficiency and low power of the transmitter, it blocks the existing causes of failure in advance and makes the maintenance easy by the user by clearly identifying the presence and failure of the failure.

Fourth, it displays the transmission level, reception level, track frequency, CAB frequency, code frequency, etc. on the monitoring unit, and enables the user to display the fault information of each card mounted in the device on the front so that the user can see the naked eye without a separate measuring instrument and equipment. This enables the system to be inspected and at the same time, it can store the transmit / receive level and fault information inside the device so that users can download and use the desired information for their convenience.

Fifth, the card of the transmitter and receiver can be used regardless of frequency.

The configuration of the present invention for achieving the above object is configured as shown in Figures 1 to 8. 1 is a dual configuration diagram of an AF track circuit device according to the present invention, Figure 2 is a separate configuration diagram of the AF track circuit device according to the present invention.

The dual relay of the AF track circuit device according to the present application is largely divided into the first relay device 10, the second relay device 20, the impedance matching unit 400, and the monitoring unit 500 as shown in FIGS. 1 and 2. Consist of

3 is a detailed configuration diagram of a double relay of the AF track circuit device according to the present invention. Looking at the configuration of the present application in more detail by Figure 3,

The first device 10 is composed of a first CPU unit 100, a first transmitter 200, a first receiver 300, the second device 20 is a second CPU unit 600, 2 It is composed of a transmitting unit 700 and a second receiving unit 800, respectively.

That is, according to Figure 3, the configuration of the present application,

1, which receives an external signal manifest code condition, checks the overall state of the first apparatus 10, stores transmission and reception levels, outputs CABE information according to train detection, and detects transmission levels. The CPU unit 100;

Set the orbital frequency of the system, set the transmission level, make the communication connection of the system state of the first device 10, and the CAB frequency output and the track according to the code frequency and CABE signal specified by the first CPU unit 100. A first transmitter 200 for performing a modulated output of a frequency;

Receives the signal transmitted through the field rail and electrically insulates it, passes the bandpass filter that passes the corresponding frequency band, stabilizes the level through the level stabilizer, and then the received signal is the same as the transmitted signal. A first receiver 300 which analyzes whether the recognition is identical to the manifest code and displays the train occupancy and abnormality of the track to the outside using the track relay;

A second CPU that receives an external signal manifest code condition and checks the overall state of the second apparatus 20, stores transmission and reception levels, outputs CABE information according to train detection, and detects transmission levels. A part 600;

Set the orbital frequency of the system, set the transmission level, make the communication connection of the system state of the first device 10, the CAB frequency output and the track according to the code frequency and CABE signal specified in the second CPU unit 600 A second system transmitting unit 700 for modulating output of frequency;

Receives the signal transmitted through the field rail and electrically insulates it, passes the bandpass filter that passes the corresponding frequency band, stabilizes the level through the level stabilizer, and then the received signal is the same as the transmitted signal. A two-receiver unit 800 for analyzing whether or not it is the same as the presence code and displaying the train occupancy and abnormality of the track to the outside using the track relay;

An impedance matching unit 400 which insulates the signals transmitted from the first transmitter 200 and the second transmitter 700 from the field impedance bond and compensates for the capacitance;

After displaying information (orbit frequency, CAB frequency, code frequency) transmitted from the first CPU unit 100 and the second CPU unit 500 on the LCD of the front panel, and receiving and transmitting the transmission level and reception level, rectifying and filtering The monitoring unit 500 performs a role of displaying on the LCD;

Characterized in that configured.

Each device listed above is in charge of one part of the AF track circuit device and is grouped together to form a block. In actual operation, however, each system operates in a separate system.

That is, when the first device operates, the first CPU unit 100, the first transmitter 200, the first receiver 300, the impedance matching unit 400, and the monitoring unit 500 are the first device 10. To work as a system,

When the second device operates, the second CPU unit 600, the second transmission unit 700, the second reception unit 800, the impedance matching unit 400, and the monitoring unit 500 are connected to the second device 20. It works as a system.

However, the technical configurations on the system of the first device 10 and the second device 20 are actually the same. Therefore, the removal of either the first card or the second card does not affect the operation of the other systems. Also, if the cards of the first system and the second system are used interchangeably, there is no effect on the operation of the system. There is no abnormality.

Therefore, in the description of the detailed configuration or operation relationship of the present invention will be described based on the first system (10).

4 is a detailed configuration diagram of the CPU unit 100 of the AF track circuit device according to the present invention. To explain this,

The CPU unit 100,

A signal input unit 110 for receiving and processing a position and a path setting condition of a front train from an interlocking device;

A CPU controller 130 which analyzes the input signal input received from the outside and outputs the speed code of the train to the transmitter 200 and the outside;

A COMM unit 150 for transmitting and receiving information to the monitoring unit 500, the transmitter 200, and the receiver 300;

An Out Port unit 170 for outputting a signal input from the signal input unit 110;

A power supply unit 190 for supplying power for operation of the CPU system;

Characterized in that configured.

The signal input unit 110,

A second Opto-Isolator unit 111 which receives a control signal other than a speed code and electrically insulates it;

A first Opto-Isolator unit 112 which receives the speed code and electrically insulates the received speed code signal;

A rectifier 113 for rectifying the isolated speed code signal;

An input port unit 114 for receiving a signal output from the second opto-isolator unit 111 and a signal rectified from the rectifying unit 113 and outputting the received signal to a CPU control unit;

A speed code generator 121 for receiving a condition of an adjacent trajectory and a condition of an interlocking device and generating a feed back signal of a speed expression code;

Receiving a transmission signal transmitted through the rail in the field to electrically insulate it, and then receives the filtered signal to stabilize the level, and outputs it to the CPU control unit 122;

Characterized in that configured.

The CPU control unit 130,

The overall function of the CPU control unit is controlled, and the signal generated by receiving the speed expression code processor and other information input from the signal input unit 110 is judged whether an error is generated by using program logic mounted therein, and then the signal If is determined to be normal by using the RS-422 communication method to set the value of the speed code sent to the transmitter 200 through the COMM unit 150, and if the signal is an error by comparing the system of the first and second systems A CPU 131 which determines whether to transfer or not and delivers a result of comparing and analyzing the internal data and the data received from the outside to the monitoring unit 500;

A storage unit 132 for storing a transmission level produced by the CPU controller and a signal input from the receiver 300;

A flash memory 133 for storing a transmission level produced by the CPU controller;

A CF card 134 for storing a signal input from the receiver 300;

A WDT unit 135 which monitors an internal system of the CPU control unit by itself and outputs a CPU Reset signal when it is determined that an abnormal situation occurs due to an error of the internal system;

A reset unit 136 for resetting the internal system by resetting the CPU when an internal system error occurs;

A reference voltage unit 137 which serves to set a reference voltage so that the CPU controller 130 does not reset before the power supply of the rectifier reaches the normal operating voltage of the semiconductor at the initial power input;

Characterized in that configured.

The COMM unit 150,

An RS-232 interface unit 151 for allowing the CPU 131, the monitoring unit 500, the transmitting unit 200, and the receiving unit 300 to transmit and receive information from each other;

An LED display unit 152 for displaying information transmission / reception states between the CPU 131, the monitoring unit 500, the transmission unit 200, and the reception unit 300;

Characterized in that configured.

The out port unit 170,

An out port 171 for converting the speed code signal input from the signal input unit 110 and outputting it to the field;

A speed code display unit 172 for displaying a speed code signal outputted through the out port 171;

An RS-232 interface unit 173 for transmitting and receiving the speed code signal;

Characterized in that configured.

The power supply unit 190,

An operating power supply unit (+ 24V) for supplying a 24V power supply for operation to the apparatus;

A rectifying circuit 191 for transforming power to supply 5V power required for signal control;

Characterized in that configured.

5 is a detailed block diagram of the transmitter 200 of the AF track circuit device according to the present application. To explain this,

The transmitter 200,

An input / output unit 210 which is in charge of input / output of information input / output to a transmitter;

Analyzes the information received from the outside, generates a signal such as the track frequency, CAB frequency output, code frequency of the train and sends a command to the PWM unit 250, input and output the signal output from the PWM unit 250 A transmission CPU unit 230 which receives an input through the unit 210 and determines whether an output error occurs;

A PWM unit 250 which detects the information in the transmitting CPU unit 230, PWM modulates the ATC signal required for the track, and then amplifies and outputs it to a required level;

An output level receiving unit 270 for rectifying the output signal of the impedance matching unit 400 and transmitting the output signal to the transmitting CPU 230 so as to determine whether the transmission output is abnormal;

A power supply unit 290 supplying power required for the operation of the transmission unit;

Characterized in that configured.

The input and output unit 210,

An RS-232 communication unit 211 for transmitting and receiving information with the transmitting unit 700 of the partner system (second system) to transfer information when an abnormality occurs;

RS- for transmitting and receiving information such as a code frequency and a transmission level value in the CPU unit 100, transmitting a transmission level value to the receiving unit 300, and receiving a presence or absence of a reception level abnormality. 422 communication unit 212;

An Opto-Isolator unit 221 electrically insulating the signal received from the outside;

A system status display unit 222 for displaying the system selection and the system status of the system;

An LED display unit 223 displaying a state of the transmitter 200 on the front panel;

Characterized in that configured.

The transmission CPU unit 230,

After receiving the information transmitted from the CPU unit 100 through the RS-422 communication unit 212, and transmits the received code frequency information to the PWM unit 250, Opto- of the input / output unit 210 Analyzes the information input through the isolator 221 to determine whether the error, and receives the information of the F_SET unit 261 for setting the frequency of the block input from the PWM unit 250, the PWM unit 250 After receiving the output transmission output and comparing it, it is judged whether the transmission output of the PWM unit is normal, and it controls the output only when it is normal, and the information of the F_SET unit 261 is transmitted to the RS-422 communication unit 222. A CPU 231 having a function of transmitting to the CPU unit 100 through;

A WDT unit 235 for determining an error of an internal system and outputting a CPU reset signal when an error occurs;

A reset unit 236 for monitoring the internal system and outputting a signal for resetting the CPU 231 when an abnormal situation that is determined to be an error of the internal system occurs and resetting the internal system;

A reference voltage unit 237 which sets a reference voltage so that the transmitting CPU 230 does not reset before the power supply of the rectifier reaches the normal operating voltage of the semiconductor at the initial power input;

Characterized in that configured.

The PWM unit 250,

A PWM generator 251 which modulates and outputs the information received from the transmitting CPU 230 through the internal data bus and the orbital frequency set by the F_SET unit 261;

A PWM pattern ROM unit 252 for generating a PWM pattern according to a program algorithm for modulating an orbital frequency, a code frequency, and a CAB frequency, and setting a level according thereto to generate a PWM modulated signal;

A PWM output unit 253 for amplifying and outputting the PWM modulated signal using a full bridge circuit;

An F_SET unit 261 for setting a required orbital frequency in the PWM unit;

An output level setting unit 262 for setting the PWM signal transmission level in the PWM generation unit 250;

Characterized in that configured.

The output level receiving unit 270,

An ADC unit 271 for extracting a signal output from the tuning circuit 420 of the impedance matching unit 400, converting the extracted analog signal into a digital signal, and transmitting the digital signal to a monitoring CPU;

A rectifier 272 for rectifying the signal passing through the low pass filter;

A final transmission level and frequency modulator 273 which rectifies the output signal of the impedance matching unit 400 and transmits the output signal to the transmission CPU 230 so as to determine whether the transmission output is abnormal;

Characterized in that configured.

The power supply unit 290,

An operating power supply unit (+ 24V) for supplying a 24V power source necessary for the operation of the transmitter;

A rectifying circuit 291 for transforming power to supply 5V power required for signal control of the transmitter;

Characterized in that configured.

Reference numeral 280 not described above is a motherboard of an impedance matching unit.

6 is a detailed block diagram of the receiver 300 of the AF track circuit device according to the present application. To explain this,

The receiver 300,

A reception input unit 310 for receiving a track signal output from the transmitter 200 to the track via an impedance bond and transmitting a reception level to the reception CPU 350;

A reception level detector 330 which detects and filters the level of the input signal and receives only a set track frequency;

A receiving CPU 350 which receives the information from the reception level detector 330 and compares it with the signal output from the transmitter 200 and detects an error of the receiver itself;

An LED display unit 361 for displaying the state of the receiver 300 to the outside;

A track relay unit 380 for displaying a track occupancy state of the train outside according to the received data;

A COMM unit 370 for transmitting information of orbital reception data;

A power supply 390 for supplying power for the operation of the device;

Characterized in that configured.

The reception input unit 310,

An impedance matching unit 311 which electrically insulates the track signal output from the transmitter 200 to the track through an impedance bond and electrically insulates the impedance signal;

A BPF unit 312 filtering the impedance matched signal according to a specified frequency band;

A level stabilizer 313 for removing noise from the filtered signal and stabilizing the level;

A level detecting unit 314 for transmitting a reception level to the monitoring unit 500;

Characterized in that configured.

The reception level detection unit 330,

An LPF unit 331 for removing the carrier frequency and extracting only the signal frequency using the stabilized signal using a low pass filter;

A comparator 332 for generating the extracted signal into a shaped square wave;

An I / F unit 333 for converting the shaped square wave into a level suitable for a CPU;

A rectifier 334 which receives the signal passing through the LPF unit 331 and rectifies the signal and transmits the signal to the CPU 351;

Characterized in that configured.

The receiving CPU 350,

When the signal converted by the reception level detecting unit 330 is provided as an interrupt input, the orbital relay is analyzed by comparing the input signal with the level setting value and the present code provided by the transmitter 200 through the RS-422 communication unit 371. A receiving CPU 351 outputted to the unit 380;

A WDT unit 352 for determining an error of an internal system and outputting a CPU Reset signal when an error occurs;

A reset unit 353 for monitoring the internal system and outputting a signal for resetting the CPU 231 when an abnormal situation that is determined to be an error of the internal system occurs and resetting the internal system;

A reference voltage unit 354 which serves to set a reference voltage such that the power of the rectifier is not reset when the power supply of the rectifier is before the normal operating voltage of the semiconductor upon initial power input;

A system status display unit 355 for displaying the system selection and the system status of the system;

Characterized in that configured.

The track relay unit 380,

An Opto-Isolator unit 343 for electrical isolation from the receiving CPU 351;

An amplifier 342 for amplifying the signal passing through the opto-isolator 343;

An orbital relay output section 341 for operating an orbital relay through the amplifier;

Characterized in that configured.

The symbol 371 of the COMM unit 370 represents an RS-422 communication unit line for transmitting and receiving information with the transmitter 200 and the CPU unit 100, and the symbol 372 is a level of transmission and reception to an external device. And RS-232 communication line for providing LOG Data.

The power supply unit 390,

An operating power supply unit (+ 24V) for supplying a 24V power supply for operation of the receiver;

A rectifying circuit 391 for transforming power to supply 5V power required for signal control of the receiver;

Characterized in that configured.

7 is a detailed configuration diagram of the impedance matching unit 400 of the AF track circuit device according to the present design. To explain this,

The impedance matching unit 400,

An impedance matching transformer unit 410 for matching an impedance output with a signal output from the PWM output unit 253 of the transmitter 200 to the impedance bond installed in the field rail;

A tuning circuit unit 420 for compensating for the capacitance of the cable connected up to the impedance bond and outputting it to the track;

A matching transformer 440 for matching a transmission output voltage passed through the tuning circuit 420;

A rectifier 430 for electrically insulating the output signal from the matching transformer and converting the signal to a DC value so as to be received by the transmitter 200 and the CPU 100;

A comparator unit 450 which transmits the signal transmitted to the rectifier unit 430 to the transmitter unit 200 and the CPU unit 100 so as to form a square wave and compare it with the level value output from the transmitter unit 200;

A power supply unit 460 for supplying a driving voltage 24V necessary for the impedance matching unit and voltages (+ 5V, -5V) necessary for signal control;

Characterized in that configured.

The power supply unit 460,

Rectifications 461 and 462 are further provided to supply a driving voltage 24V necessary for the impedance matching unit and voltages (+ 5V, -5V) necessary for signal control.

8 is a detailed configuration diagram of the monitoring unit 500 of the AF track circuit device according to the present application. To explain this,

The monitoring unit 500,

A signal input unit 510 for selecting a commercial system and an automatic switching method;

The transmission output level and the manifest code are extracted from the tuning circuit 420 of the impedance matching unit 400, and the matching unit 311 of the receiver input unit 310 detects the reception level and the manifest code to obtain the detected analog data. An ADC detecting unit 530 converting the digital signal to the monitoring CPU 550 in a serial manner;

Receives the information of the ADC detection unit and stores the information in the storage device, outputs the stored information by using the LCD of the external display unit 580, the information through the COMM unit 570 to the external display unit 580 as an LED A monitoring CPU 550 functioning to display;

A COMM unit 570 which performs an information transfer function with the CPU unit 100;

An external display unit 580 for displaying the level and information received by the user with an LCD and an LED;

A power supply unit 590 for supplying power for operation of the device;

Characterized in that configured.

The signal input unit 510,

A selection mode unit 511 for arbitrarily selecting a first device 10 and a second device 20 by a user;

An automatic mode unit 512 for automatically implementing the system selection to automatically switch to the opposite system when an error occurs in the system in use;

Characterized in that configured.

The ADC detection unit 530,

The transmission output level and the manifestation code are extracted from the tuning circuit 420 of the impedance matching unit 400, and the matching transformer 314 is detected by detecting the reception level and the manifest code by the matching section 311 of the reception input unit 310. LPF units (531, 534) for removing the carrier frequency and extracting only the signal frequency by using a low pass filter to electrically insulate the signal;

Comparators 532 and 535 for converting the extracted signal into a shaped square wave and converting the extracted signal into a level suitable for a CPU;

Rectifiers 533 and 536 which receive signals passing through the LPF units 531 and 534 and rectify the signals;

The manifest code is transmitted to the monitoring CPU 551, and the signal passing through the LPF units 531 and 534 is received through the rectifiers 533 and 536, and then detected and converted to analog data. An ADC unit 544 which transmits in a serial manner to the CPU 551;

Characterized in that configured.

The monitoring CPU 550,

A monitoring CPU 551 which collectively controls the operation status of the monitoring device and controls the user to grasp the operation status of the device by outputting and displaying the operation status of the poultry devices 10 and 20 to a display unit;

A storage unit 552 for storing a transmission / reception level detected by the ADC detection unit 530;

A WDT unit 555 for determining an error of an internal system and outputting a CPU reset signal when an error occurs;

A reset unit 556 for monitoring the internal system and outputting a signal for resetting the CPU 551 when an abnormal situation that is determined to be an error of the internal system occurs and resetting the internal system;

A reference voltage unit 557 which sets a reference voltage so that the transmitting CPU 230 does not reset before the power supply of the rectifier reaches the normal operating voltage of the semiconductor at the initial power input;

Characterized in that configured.

The COMM unit 570 transmits and receives information to and from the CPU units 100 and 600 through the RS-232 communication unit 571, and transmits the RS-232 1Port to the first device 10 and the second device 20. It is configured to receive status of both systems by designating RS-232 1Port.

The external display unit 580,

A decoder unit 581 for decoding an operation signal of the apparatus;

Buffer units 582 and 584 for buffering signals output from the decoder unit;

LCD display units 583 and 585 for outputting signals output through the buffer unit by using an LCD;

Characterized in that configured.

In the AF track circuit device according to the present application having the above configuration, the first matching device 10 and the second writing device 20 are divided into two while sharing the impedance matching unit 400 and the monitoring unit 500. It is operated as a relay, and only one of the two systems is operated and the other serves as a standby system only when the system in use is broken.

Therefore, as described above, since the first system 10 and the second system 20 are the same in the operation process of the second system, the operation process will be described based on the first device 10.

The CPU unit 100 of the AF track circuit device analyzes and stores information inside the AF track circuit device and analyzes the information input through the indicated speed code selection circuit to generate the code frequency according to the input information. It serves to convey information.

The command speed code selection circuit outputs the track frequency by using the PWM method from the CPU control unit 131 to provide the signal as a common signal of the command speed code selection circuit. The code frequency information is electrically insulated through the opto-isolator 112 and then received by the CPU control unit 131 via the rectifier 113 to determine the indication speed code by the external factor. Minimize errors.

Next, the transmission output and the signal frequency are detected using the ADC port and the INT port in the CPU control unit 131, and the transmission output of the transmission unit 200 and the reception input of the reception unit 300 are received using the RS-422 communication unit 151. The CF card and the flash memory to store the information, and compare and analyze the transmission value and the reception value. Instructs the user to send the information through

In addition, based on the information input from the command speed code selection circuit to display the information using the LED on the front to inform the status of the CPU unit 100 to the user.

In addition, the WDT unit 135 outputs a CPU automatic reset signal when an error occurs in the system by determining a system error.

In addition, the reference voltage unit 137 detects the voltage so that the CPU control unit 131 can start the safe operation by checking the voltage of the power supply, and performs the reset operation of the CPU control unit 131 at the safe operation point.

The transmitter 200 basically has an F_SET unit 261 that sets an operating frequency of the system and selects a frequency of the entire system using a jumper. When the frequency selection is completed, the frequency selection state of the counterpart 20 is detected by using the RS-232 communication unit 211 to determine whether the frequency selection is abnormal. If the selection of both systems is the same, the frequency selection is completed by the receiving unit 300. ) And the selection frequency to the CPU unit 100 and the monitoring unit 500 transmits it through the CPU unit 100.

When the next frequency selection is completed, the information on the code frequency and the selection frequency received by the CPU unit 100 is analyzed by the transmitting CPU 231 and transmitted to the PWM generation unit 251.

The PWM generation unit 251 uses the information received from the transmission CPU 231 and the reception level detected through the distance and the reception unit 300 by using the output level setting unit 262 provided on the front of the transmission unit 200. The output level is set accordingly, and the PWM pattern ROM unit 252 downloads the corresponding output information by using the received information, and amplifies it in the PWM output unit 253 using the full bridge circuit to transmit output.

The transmitted output is electrically insulated through the impedance matching unit 400, and when it is received at a level that can be detected by the transmitting CPU 231 by filtering it, the transmitting CPU 231 compares it with the transmission output level and compares the reference value. It is judged whether or not the transfer and system error according to the scope of. Transfer and error indication reference value is based on the value set in the internal level setting part.

On the other hand, the impedance matching unit 400 is the capacitance of the cable connected to the impedance bond matching unit 410 impedance bond matching the signal output from the PWM output unit 253 of the transmitter 200 and the impedance bond installed on the field rail and impedance The output of the tuning circuit 420 and the output of the tuning circuit 420 through the matching transformer 440 electrically compensated through the matching transformer 440 to compensate and compensate for the square wave through the rectifying unit 430. The inside detects the signal frequency through the comparator 450 and the output level through the rectifier 430 to transmit the detection information to the transmitter 200 and the CPU 100.

Next, the receiver 300 detects a track signal output from the receiver input unit 310 to the track from the transmitter 200 through an impedance bond, electrically insulates it from the impedance matching unit 311, and performs impedance matching to perform a BPF unit ( Filtering is performed according to the frequency band specified in 312, and the level stabilizer 313 removes noise and stabilizes the level to transmit it to the reception level detector 330.

The reception level detector 330 removes the carrier frequency using a low pass filter, extracts only the signal frequency, and converts the signal of the signal frequency into a shaped square wave through the comparator 332 to a level suitable for the CPU. Give it.

Meanwhile, the signal passing through the LPF unit 331 is rectified through the rectifying unit 334 and then transmitted to the receiving CPU 351.

Next, when the signal converted by the reception level detector 330 is provided as an interrupt input, the reception CPU 351 provides the input signal and the level setting value and the present code provided by the transmitter 200 through the RS-422 communication unit 371. Comparative analysis and outputs to the orbital relay unit 380.

The WDT unit 352 determines an error of the internal system and outputs a CPU Reset signal when an error occurs, and the reference voltage unit 354 checks the operating voltage of the receiving CPU 351 to receive the CPU 351 due to an error in the main power supply. This prevents the reset of the device from operating unstable.

The LED display unit 361 displays the state of the receiver 300 on the front side through the LED.

In addition, the RS-422 communication unit 371 of the COMM unit 370 detects the information transmitted from the transmitting unit 200 and the CPU unit 100 so that the receiving CPU 350 can receive it, and the RS-232 communication unit 372 ) Allows the external device to receive information inside the system, and the track relay unit 380 electrically insulates the signal output from the receiving CPU 350 from the opto-isolator unit 343 and the amplifying unit 342. After amplifying it through, the orbital relay output unit 341 outputs a signal for operating the orbital relay.

Next, the monitoring unit 500 has a selection switch for selecting a commercial system and a preliminary system switching method and manually selecting a commercial system preliminary system.

In addition, the tuning circuit 420 of the impedance matching unit 400 detects the transmission output level and the signal frequency, and the matching unit 311 of the reception input unit 310 detects the reception level and the signal frequency. After electrical insulation using the), remove the carrier frequency using a low pass filter, detect only the signal frequency, and monitor the detected signal frequency to form a square wave through the comparator 532 Transfer to CPU 551.

The monitoring CPU 551 receives the signal passing through the LPF units 531 and 534, detects the level through the rectifiers 533 and 536, and converts the analog data into digital through the 16-bit ADC unit 544. The transmission and reception levels are transmitted to the monitoring CPU 551. The monitoring CPU 551 stores the received transmission / reception level in an internal flash memory, and this data is an orbital frequency, a CAB frequency, a signal frequency, and the like, which is information transmitted from the CPU unit 100 through the COMM unit 570. Along with the monitoring unit 500 is displayed on the LCD installed.

In addition, the monitoring unit 500 has an LED display unit 585 in order to display the state of the monitoring unit to the outside, and the LCD display unit 583 additionally displays a failure information.

The COMM unit 570 transmits / receives information with the CPU unit 100 through the RS-232 communication unit 571, RS-232 1Port to the first device 10 and RS-232 to the second device 20. 1Port is designated and the status of both systems is frequently received and displayed on the front.

In addition, the WDT unit 555 determines the error of the internal system and outputs a CPU Reset signal when an error occurs, and the reference voltage unit 557 checks the operating voltage of the monitoring CPU 551 to monitor the CPU 551 by the error of the main power supply. ) Reset prevents unstable operation.

In order to stably perform the above operation, each part is provided with a constant voltage power supply circuit capable of supplying stable power to each part itself and disposed at the power input terminal.

Through the operation process as described above, the present application,

If a fault occurs in the first gear during the operation of the equipment, it is possible to ensure the safe operation of the train by automatically switching to the second gear without affecting the operation of the system.

When the user needs to download the data using the communication port, the system data can be used at any time.

It is possible to clarify the presence or absence of failures while blocking the existing failure factors in advance.

The user can visually inspect the system without the need for a separate measuring instrument and equipment, and can download and use the desired information according to the user's convenience.

According to the present application configured as described above,

Either one caused by a single system or incomplete dual system configuration because the AF track circuit device is configured as a complete dual system, so that each system operates as a separate system, and only a matching transformer connected to the site is shared by both systems. The failure of the system has the effect of preventing the problem that leads to the failure of the entire system.

In addition, the present invention saves various data inside the system and, if necessary, makes it easy to analyze the failure by calling the stored data by using RS-232 communication method to analyze the failure or use it as data for preventing the failure. And prevents future failures.

In addition, the present invention processes the PWM modulation output using the PLD at the final stage by using a full bridge circuit by using a program algorithm, and compares the frequency oscillation unit and the output performed in the conventional analog circuit and outputs the transmission output. As the operation performed can be simplified, the point of failure can be significantly reduced as compared to the conventional analog method, and the maintenance is easy due to the deterioration of the characteristics of the semiconductor.

In addition, the present invention composes an algorithm using a PWM modulation program and produces an output circuit by making a program that generates a frequency using the algorithm. It becomes possible enough just to change the jumper of a dragon circuit. In addition, since the result of the examination of the output signal is also generated and output from the transmitter, it is possible to clearly determine whether there is an abnormality by the user's setting.

In addition, each unit displays LEDs on the front panel using LEDs, while the monitoring unit always displays values such as track frequency, CAB frequency, nose frequency, transmission level, and reception level on the LCD display window. It is effective to grasp the details quickly and simply.

In addition, the self-test function is added to the system itself so that the user can always check whether there is an abnormality, thereby increasing the convenience of use and maintenance.

1 is a double relay configuration of the AF track circuit device according to the present invention

Figure 2 is a single system separation configuration of the AF track circuit device according to the present invention

3 is a detailed configuration diagram of the double relay of the AF track circuit device according to the present invention

4 is a detailed configuration diagram of the CPU unit according to the present invention

5 is a detailed configuration diagram of the transmission unit according to the present invention

6 is a detailed configuration diagram of the receiver according to the present invention

7 is a detailed configuration diagram of the impedance matching unit according to the present invention

8 is a detailed configuration diagram of the monitoring unit according to the present invention

<Explanation of symbols by main parts of the drawings>

10: 1 system (AF track circuit) 20: 2 system (AF track circuit)

30: monitoring unit 40: impedance matching unit

100: first system CPU unit 110: signal input unit

111: second Opto-Isolator section 112: second Opto-Isolator section

113: rectifier 114: input port

121: speed code generator 122: input stabilizer

130: CPU control unit 131: CPU

132: storage unit 133: flash memory

134: CF Card 135: WDT part

136: Reset unit 137: reference voltage unit

150: COMM unit 151: RS-232 interface unit

152: LED display unit 170: OutPort unit

171: OutPort 172: Speed code display unit

173: RS-232 interface 190: power supply

191: rectifier

200: first transmission unit 210: input and output unit

211: RS-232 communication unit 212: RS-422 communication unit

221: Opto-Isolator unit 222: System status display unit

223: LED display unit 230: transmitting CPU

231 CPU 235 WDT unit

236 Reset unit 237 Reference voltage unit

250: PWM unit 251: PWM generator

252: PWM pattern ROM section 253: PWM output section

270: output level receiver 271: ADC unit

272: rectifier

273: Final transmission level and frequency modulator

290: power supply section 291: rectification section

300: first stage receiver

310: receiving input unit 311: impedance matching unit

312: BPF section 313: level stabilization section

314: level detector 330: reception level detector

331: LPF unit 332: comparator unit

333: I / F part 334: rectification part

341: Opto-Isolator unit 342: amplification unit

343: orbital relay output unit 350: receiving CPU

351: CPU 352: WDT unit

353: reset section 354: reference voltage section

355: system status display section 370: COMM section

371: RS-422 communication unit 372: RS-232 communication unit

390: power supply unit 391: rectification unit

400: impedance matching unit 410: matching transformer

420: tuning circuit section 450: comparator section

460: power supply section 461, 462: rectification section

500: monitoring unit

510: mode selection unit 511: selection mode unit

512: automatic mode unit 530: ADC detection unit

531, 534: LPF part 532, 535: comparator

533 and 536: rectifier 544; ADC section

550: monitoring CPU unit 551: monitoring CPU

552: storage unit 555: WDT unit

556: Reset unit 557: Reference voltage unit

570: COMM unit 580: external display unit

581: decoder section 582, 584: buffer section

583, 585: LED display 590: power supply

591: power supply

600: 2 system CPU unit

610 to 690: have a code corresponding to the first CPU

700: 2nd transmitter

710 ~ 790: have a code corresponding to the first transmitter

800: second receiver

810 ~ 890: Each code has a code corresponding to the first receiver

Claims (22)

1, which receives the external signal manifest code condition, checks the overall state of the first system 10, stores the transmission and reception levels, outputs CABE information according to the train detection, and detects the transmission level. The CPU unit 100; Set the orbital frequency of the system, set the transmission level, make the communication connection of the system state of the first system 10 device, and output the CAB frequency and track according to the code frequency and CABE signal specified in the first system CPU unit 100 A first transmitter 200 for performing a modulated output of a frequency; Receives the signal transmitted through the field rail and electrically insulates it, passes the bandpass filter that passes the corresponding frequency band, stabilizes the level through the level stabilizer, and then the received signal is the same as the transmitted signal. A first receiver 300 which analyzes whether the recognition is identical to the manifest code and displays the train occupancy and abnormality of the track to the outside using the track relay; Second system CPU which receives external signal manifestation code condition and checks the overall state of the second system 20, stores transmission and reception levels, outputs CABE information according to train detection, and detects transmission level. A part 600; Set the orbital frequency of the system, set the transmission level, make the communication connection of the system state of the system of the first system 10, and the CAB frequency output and the track according to the code frequency and CABE signal specified by the second CPU unit 600. A second system transmitting unit 700 for modulating output of frequency; Receives the signal transmitted through the field rail and electrically insulates it, passes the bandpass filter that passes the corresponding frequency band, stabilizes the level through the level stabilizer, and then the received signal is the same as the transmitted signal. A two-receiver unit 800 which analyzes whether the recognition is identical to the manifest code, and displays the train occupancy and abnormality of the track to the outside using the track relay; An impedance matching unit 400 which insulates the signals transmitted from the first transmitter 200 and the second transmitter 700 from the field impedance bond and compensates for the capacitance; After displaying information (orbital frequency, CAB frequency, code frequency) transmitted from the first CPU unit 100 and the second CPU unit 500 on the LCD of the front panel and receiving and transmitting the received and received levels, rectified and filtered. The monitoring unit 500 performs a role of displaying on the LCD; AF track circuit device, characterized in that configured. The method of claim 1, The CPU unit 100, A signal input unit 110 for receiving and processing a position and a path setting condition of a front train from an interlocking device; A CPU controller 130 which analyzes the input signal input received from the outside and outputs the speed code of the train to the transmitter 200 and the outside; A COMM unit 150 for transmitting and receiving information to the monitoring unit 500, the transmitter 200, and the receiver 300; An Out Port unit 170 for outputting a signal input from the signal input unit 110; A power supply unit 190 for supplying power for operation of the CPU system; AF track circuit device, characterized in that configured. The method of claim 2, The signal input unit 110, A second Opto-Isolator unit 111 which receives a control signal other than a speed code and electrically insulates it; A first Opto-Isolator unit 112 which receives the speed code and electrically insulates the received speed code signal; A rectifier 113 for rectifying the isolated speed code signal; An INPUT PORT unit 114 for receiving a signal output from the second Opto-Isolator unit 111 and a signal rectified and output from the rectifying unit 113 and outputting the signal to a CPU control unit; A speed code generator 121 for receiving a condition of an adjacent track and a condition of a linkage device and generating a feedback signal of a speed expression code; An input stabilization unit 122 which receives the transmission signal transmitted through the sage rail, electrically insulates it, receives the filtered signal, stabilizes the level, and outputs it to the CPU controller; AF track circuit device, characterized in that configured. The method according to claim 2 or 3, The CPU control unit 130, The overall function of the CPU control unit is controlled, and the signal generated by receiving the speed expression code processor and other information input from the signal input unit 110 is judged whether an error is generated by using program logic mounted therein, and then the signal If is determined to be normal by using the RS-422 communication method to set the value of the speed code sent to the transmitter 200 through the COMM unit 150, and if the signal is an error by comparing the system of the first and second systems A CPU 131 which determines whether to transfer or not and delivers a result of comparing and analyzing the internal data and the data received from the outside to the monitoring unit 500; A storage unit 132 for storing a transmission level produced by the CPU controller and a signal input from the receiver 300; A flash memory 133 for storing a transmission level produced by the CPU controller; A CF card 134 for storing a signal input from the receiver 300; A WDT unit 135 which monitors an internal system of the CPU control unit by itself and outputs a CPU Reset signal when it is determined that an abnormal situation has occurred due to an error in the internal system; A reset unit 136 for resetting the internal system by resetting the CPU when an internal system error occurs; A power supply of the rectifier at the initial power input to the reference voltage unit 137 which serves to set the reference voltage so that the CPU controller 130 does not reset before the normal operating voltage of the semiconductor; AF track circuit device, characterized in that configured The method according to claim 2 or 4, The COMM unit 150, An RS-232 interface unit 151 for allowing the CPU 131, the monitoring unit 500, the transmitting unit 200, and the receiving unit 300 to transmit and receive information from each other; An LED display unit 152 for displaying information transmission / reception states between the CPU 131, the monitoring unit 500, the transmission unit 200, and the reception unit 300; AF track circuit device, characterized in that configured. The method according to claim 2 or 5, The OUTPORT unit 170, An OUTPORT 171 for converting the speed code signal input from the signal input unit 110 and outputting it to the field; A speed code display unit 172 for displaying a speed code signal outputted through the OUTPORT 171; An RS-232 interface unit 173 for transmitting and receiving the speed code signal; AF track circuit device, characterized in that configured. The method according to claim 1 or 2, The transmitter 200, An input / output unit 210 which is in charge of input / output of information input / output to a transmitter; Analyzes the information received from the outside, generates a signal such as the track frequency, CAB frequency output, code frequency of the train and sends a command to the PWM unit 250, input and output the signal output from the PWM unit 250 A transmission CPU unit 230 which receives an input through the unit 210 and determines whether an output error occurs; A PWM unit 250 which detects the information in the transmitting CPU unit 230, PWM modulates the ATC signal required for the track, and then amplifies and outputs it to a required level; An output level receiving unit 270 for rectifying the output signal of the impedance matching unit 400 and transmitting the output signal to the transmitting CPU 230 so as to determine whether the transmission output is abnormal; A power supply unit 290 supplying power required for the operation of the transmission unit; AF track circuit device, characterized in that configured. The method of claim 7, wherein The input and output unit 210, An RS-232 communication unit 211 for transmitting and receiving information with the transmitting unit 700 of the partner system (second system) to transfer information when an abnormality occurs; RS- for transmitting and receiving information such as a code frequency and a transmission level value in the CPU unit 100, transmitting a transmission level value to the receiving unit 300, and receiving a presence or absence of a reception level abnormality. 422 communication unit 212; An Opto-Isolator unit 221 electrically insulating the signal received from the outside; A system status display unit 222 for displaying the system selection and the system status of the system; An LED display unit 223 displaying a state of the transmitter 200 on the front panel; AF track circuit device, characterized in that configured. The method according to claim 7 or 8, The transmission CPU unit 230, After receiving the information transmitted from the CPU unit 100 through the RS-422 communication unit 212, and transmits the received code frequency information to the PWM unit 250, Opto- of the input / output unit 210 Analyzes the information input through the isolator 221 to determine whether there is an error, and receives the information of the F_SET unit 261 for setting the frequency of the block input from the PWM unit 250, the PWM unit 250 After receiving the output transmission output and comparing it, it is determined whether or not the transmission output of the PWM unit is normal, and serves to control the output only when it is normal, and the RS-422 communication unit 222 receives A CPU 231 having a function of transmitting to the CPU unit 100 through; A WDT unit 235 for determining an error of an internal system and outputting a CPU reset signal when an error occurs; A reset unit 236 for monitoring the internal system and outputting a signal for resetting the CPU 231 when an abnormal situation that is determined to be an error of the internal system is reset; A reference voltage unit 237 which sets a reference voltage so that the transmitting CPU 230 does not reset the power before the power supply of the rectifier reaches the normal operating voltage of the semiconductor at the initial power input; AF track circuit device, characterized in that configured. The method according to claim 7 or 9, The PWM unit 250, A PWM generator 251 which modulates and outputs the information received from the transmitting CPU 230 through the internal data bus and the orbital frequency set by the F_SET unit 261; A PWM pattern ROM unit 252 for generating a PWM pattern according to a program algorithm for modulating an orbital frequency, a code frequency, and a CAB frequency, and setting a level according thereto to generate a PWM modulated signal; A PWM output unit 253 for amplifying and outputting the PWM modulated signal using a full bridge circuit; An F_SET unit 261 for setting a required orbital frequency in the PWM unit; An output level setting unit 262 for setting the PWM signal transmission level in the PWM generation unit 250; AF track circuit device, characterized in that configured. The method according to claim 7 or 10, The output level receiving unit 270, The output level receiving unit 270, An ADC unit 271 for extracting a signal output from the tuning circuit 420 of the impedance matching unit 400, converting the extracted analog signal into a digital signal, and transmitting the digital signal to a monitoring CPU; A rectifier 272 for rectifying the signal passing through the low pass filter; A final transmission level and frequency modulator 273 which rectifies the output signal of the impedance matching unit 400 and transmits the output signal to the transmission CPU 230 so as to determine whether the transmission output is abnormal; AF track circuit device, characterized in that configured. The method according to claim 1 or 7, The receiver 300, A reception input unit 310 for receiving a track signal output from the transmitter 200 to the track via an impedance bond and transmitting a reception level to the reception CPU 350; A reception level detector 330 which detects and filters the level of the input signal and receives only a set track frequency; A receiving CPU 350 which receives the information from the reception level detector 330 and compares it with the signal output from the transmitter 200 and detects an error of the receiver itself; An LED display unit 361 for displaying the state of the receiver 300 to the outside; A track relay unit 380 for displaying a track occupancy state of the train outside according to the received data; A COMM unit 370 for transmitting information of orbital reception data; A power supply 390 for supplying power for the operation of the device; AF track circuit device, characterized in that configured The method of claim 12, The reception input unit 310, An impedance matching unit 311 which electrically insulates the track signal output from the transmitter 200 to the track through an impedance bond and electrically insulates the impedance signal; A BPF unit 312 filtering the impedance matched signal according to a specified frequency band; A level stabilizer 313 for removing noise from the filtered signal and stabilizing the level; A level detecting unit 314 for transmitting a reception level to the monitoring unit 500; AF track circuit device, characterized in that configured. The method according to claim 12 or 13, The reception level detection unit 330, An LPF unit 331 for removing the carrier frequency and extracting only the signal frequency using the stabilized signal using a low pass filter; A comparator 332 for generating the extracted signal into a shaped square wave; An I / F unit 333 for converting the shaped square wave into a level suitable for a CPU; A rectifier 334 which receives the signal passing through the LPF unit 331 and rectifies the signal and transmits the signal to the CPU 351; AF track circuit device, characterized in that configured. The method according to claim 12 or 14, wherein The receiving CPU 350, When the signal converted by the reception level detecting unit 330 is provided as an interrupt input, the orbital relay is analyzed by comparing the input signal with the level setting value and the present code provided by the transmitter 200 through the RS-422 communication unit 371. A receiving CPU 351 outputted to the unit 380; A WDT unit 352 for determining an error of an internal system and outputting a CPU Reset signal when an error occurs; A reset unit 353 for monitoring the internal system and outputting a signal for resetting the CPU 231 when an abnormal situation that is determined to be an error of the internal system occurs and resetting the internal system; A reference voltage unit 354 which serves to set a reference voltage such that the power of the rectifier is not reset by the receiving CPU 351 before the normal operating voltage of the semiconductor at the initial power input; A system status display unit 355 for displaying the system selection and the system status of the system; AF track circuit device, characterized in that configured. The method according to claim 12 or 15, The track relay unit 380, An Opto-Isolator unit 343 for electrical isolation from the receiving CPU 351; An amplifier 342 for amplifying the signal passing through the opto-isolator 343; An orbital relay output section 341 for operating the orbital relay through an amplifying section; AF track circuit device, characterized in that configured. The method according to claim 1 or 12, wherein The impedance matching unit 400, An impedance matching transformer unit 410 for matching an impedance output with a signal output from the PWM output unit 253 of the transmitter 200 to the impedance bond installed in the field rail; A tuning circuit unit 420 for compensating for the capacitance of the cable connected up to the impedance bond and outputting it to the track; A matching transformer 440 for matching a transmission output voltage passed through the tuning circuit 420; A rectifier 430 for electrically insulating the output signal from the matching transformer and converting the signal to a DC value so as to be received by the transmitter 200 and the CPU 100; A comparator unit 450 which transmits the signal transmitted to the rectifier unit 430 to the transmitter unit 200 and the CPU unit 100 so as to form a square wave and compare it with the level value output from the transmitter unit 200; A power supply unit 460 for supplying a driving voltage 24V necessary for the impedance matching unit and voltages (+ 5V, -5V) necessary for signal control; AF track circuit device, characterized in that configured. The method according to claim 1 or 17, The monitoring unit 500, A signal input unit 510 for selecting a commercial system and an automatic switching method; The transmission output level and the manifest code are extracted from the tuning circuit 420 of the impedance matching unit 400, and the matching unit 311 of the receiver input unit 310 detects the reception level and the manifest code to obtain the detected analog data. An ADC detecting unit 530 converting the digital signal to the monitoring CPU 550 in a serial manner; Receives the information of the ADC detection unit and stores the information in the storage device, outputs the stored information by using the LCD of the external display unit 580, the information through the COMM unit 570 to the external display unit 580 as an LED A monitoring CPU 550 functioning to display; A COMM unit 570 which functions to transfer information with the CPU unit 100; An external display unit 580 for displaying the level and information received by the user with an LCD and an LED; A power supply unit 590 for supplying power for operation of the device; AF track circuit device, characterized in that configured. The method of claim 17 or 18, The signal input unit 510, A selection mode unit 511 for arbitrarily selecting a first device 10 and a second device 20 by a user; An automatic mode unit 512 for automatically implementing the system selection to automatically switch to the opposite system when an error occurs in the system in use; AF track circuit device, characterized in that configured The method of claim 17 or 19, The ADC detection unit 530, The transmission output level and the manifestation code are extracted from the tuning circuit 420 of the impedance matching unit 400, and the matching transformer 314 is detected by detecting the reception level and the manifest code by the matching section 311 of the reception input unit 310. LPF units (531, 534) for removing the carrier frequency and extracting only the signal frequency by using a low pass filter to electrically insulate the signal; Comparators 532 and 535 for converting the extracted signal into a shaped square wave and converting the extracted signal into a level suitable for a CPU; Rectifiers 533 and 536 which receive signals passing through the LPF units 531 and 534 and rectify the signals; The manifest code is transmitted to the monitoring CPU 551, and the signal passing through the LPF units 531 and 534 is received through the rectifiers 533 and 536, and then detected and converted to analog data. An ADC unit 544 which transmits in a serial manner to the CPU 551; AF track circuit device, characterized in that configured. The method of claim 17 or 20, The monitoring CPU 550, A monitoring CPU 551 which collectively controls the operation status of the monitoring device and controls the user to grasp the operation status of the device by outputting and displaying the operation status of the poultry devices 10 and 20 to a display unit; A storage unit 552 for storing a transmission / reception level detected by the ADC detection unit 530; A WDT unit 555 for determining an error of an internal system and outputting a CPU reset signal when an error occurs; A reset unit 556 for monitoring the internal system and outputting a signal for resetting the CPU 551 when an abnormal situation that is determined to be an error of the internal system occurs and resetting the internal system; A reference voltage unit 557 which sets a reference voltage such that the transmitting CPU 230 does not reset the power before the power supply of the rectifier reaches the normal operating voltage of the semiconductor upon initial power input; AF track circuit device, characterized in that configured. The method of claim 17 or 21, The external display unit 580, A decoder unit 581 for decoding an operation signal of the apparatus; Buffer units 582 and 584 for buffering signals output from the decoder unit; LCD display units 583 and 585 for outputting signals output through the buffer unit by using an LCD; AF track circuit device, characterized in that configured.