KR101594890B1 - Apparatus for Communication of Trackside Signal Processing Modules in Railroad - Google Patents

Apparatus for Communication of Trackside Signal Processing Modules in Railroad Download PDF

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KR101594890B1
KR101594890B1 KR1020150130500A KR20150130500A KR101594890B1 KR 101594890 B1 KR101594890 B1 KR 101594890B1 KR 1020150130500 A KR1020150130500 A KR 1020150130500A KR 20150130500 A KR20150130500 A KR 20150130500A KR 101594890 B1 KR101594890 B1 KR 101594890B1
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South Korea
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unit
transmission
data
spi
communication
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KR1020150130500A
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Korean (ko)
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김정석
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주식회사 티원시스템
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    • B61L27/0005—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

[0001] The present invention relates to a communication device of a line side information processing module for a train, and more particularly, to a communication device of a line side information processing module for a train, in which communication of a line side information processing module is performed by a dedicated communication processor for Manchester- In addition to reducing the load on the microprocessor as well as preventing the loss of data received by the microprocessor, it is possible to maintain a secure communication interface between the electronic interlocking device and the line side information processing device.

Figure R1020150130500

Description

Field of the Invention [0001] The present invention relates to a communication device of a track side information processing module for a train,

The present invention relates to a communication device of a line-side information processing module for a train, and more particularly, to a sub-system of an IXL (Interlocking) interlocked by control of a train control system, And more particularly to a communication device of a line side information processing module for a train.

1, a train control system (TCS) generally includes an automatic train control (ATC) 2 and a centralized traffic control (CTC) 3 ) And an interlocking self-controller (IXL) (4). The devices are connected to each other via a communication network.

Here, the interlocking device 4, which is a subsystem of the train control system 1, is installed in an inverse mechanical room, an IEC and an outdoor mechanism box OT, A local level (LL), and a trackside level (TL).

The above-mentioned line-side information processing module is a facility for safely configuring the course of the train and presenting the driving conditions to the train crew, and interlocking the signal line and the line switcher, To achieve the purpose.

The line side information processing module is a device for interlocking between a signal device and a line switching device by an electrical or mechanical method in order to support a smooth train operation in a railway station.

Since the line side information processing module performs bidirectional transmission and reception with the interlocking device (IXL) in the form of mastosterecode and performs data communication by the circulating polling method, when a signal error occurs due to characteristics of the transmission line or reception method, It can cause enormous economic and social losses and even damage to people's lives. The cost of such a system is extremely high, and the ripple effects of the system can not be avoided.

In addition, since the microprocessor (CPU) of the line side information processing module performs various functions, data transmission / reception by a circular polling method has its own unreceivable period and since the signal error due to the transmission signal distortion is discarded, There is a problem that control is not performed and delay control is performed.

Korean Patent Registration No. 10-0673535 (Published on Jan. 24, 2007)

Accordingly, in order to solve the problems of the related art, the present invention provides a communication method of a line side information processing module that transmits and receives data through a dedicated communication processor for Manchester code communication instead of a polling method by a microprocessor (CPU) A communication device of a line side information processing module for a train is provided to maintain a safe communication interface between an electronic interlocking device as an upper system and a line side information processing device as well as to reduce the load of the processor and to prevent loss of data received by the microprocessor It has its purpose.

A communication device of a line side information processing module for a train for achieving the object of the present invention includes a line side information processing module for a communication interface between an electronic interlocking device for communication of control signals and status signals of a line side terminal device and a line side terminal device Wherein the line side information processing module comprises: a dual SSI (Solid State Interlocking) communication unit for communication impedance matching and insulation with the electronic interlocking device; When receiving a control signal from the electronic interlock device received through the dual SSI communication unit as a Manchester code signal, transmits a reception and reception completion signal to the main processor and transmits a status signal of the line end terminal from the main processor to the SPI (Serial Peripheral Interface) system, converts the received Manchester code into a Manchester code, and outputs the Manchester code to the dual SSI communication unit. And a control signal from the electronic interlocking unit is read as an SPI signal through each of the first and second transmission / reception signal processing units, and the status signal of the line end equipment is transmitted to the first and second transmission / And outputting the first main processor and the second main processor to a processing unit.

The first and second transmission / reception signal processing units receive and control the control signals received from the dual SSI communication unit in the form of Manchester code, convert them into SPI data, and provide them to the first and second main processors ; And a data transmitter for converting signals received from the first and second main processors into a body sitter code and transmitting the converted signals to the dual SSI communicator.

The data transmitting unit may include an SPI receiving unit for receiving information to be transmitted from the first and second main processors to the electronic interlocking unit in an SPI manner and storing the received information in a register; And a Manchester code transmitter for converting information received from the SPI receiver into the Manchester code and outputting the Manchester code to the electronic interlock device.

The data receiving unit receives the Manchester code signal transmitted from the electronic interlocking unit through the dual SSI communication unit, and transmits the Manchester code signal to the Manchester receiving unit. And an SPI transmission unit for outputting a reception completion signal to the first and second main processors when the Manchester code signal is received from the Manchester reception unit and providing the received first and second main processors with SPI type data to the first and second main processors; And a control unit.

The communication device of the line side information processing module for a train according to the present invention comprises a first and a second transmission / reception processor, which are dedicated communication processors, not a polling method by a main processor, as an FPGA, There is an effect that a secure communication interface with the processing apparatus can be maintained.

In other words, since the capacity of the bidirectional data communication network and the poor line electromagnetism environment are adopted, the bit string transmitted by the waveform shaping circuit corrects the distortion of the transmission information due to the characteristics of the transmission line or the disturbance It is possible to minimize the transmission error, enable the real-time transmission / reception, prevent the delay control in advance, and provide the electronic interlocking device IXL, which is an upper system, because there is no period of self-reception due to data transmission / It is possible to maintain a secure communication interface with the line side information processing device.

The Manchester code processed by the first and second transmission / reception signal processing units is a communication format unsuitable for direct transmission / reception by the main processor. Since the Manchester code is converted into an SPI system and transmitted and received, It is effective.

1 is a diagram of a communication network of a train control system in general,
2 is a block diagram of a communication apparatus of a line side information processing module for a train according to an embodiment of the present invention,
FIG. 3 is a detailed circuit diagram of the data transmission / reception signal processing unit in FIG. 2,
FIG. 4 is a detailed circuit diagram of the data receiving unit in FIG. 3,
5 is a detailed circuit diagram of the data transmission unit in FIG.

The communication device of the line information processing module for a train according to the embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5.

FIG. 2 is a block diagram of a communication device of a line side information processing module for a train according to an embodiment of the present invention. The communication device of the line side information processing module receives a status signal of the line side terminal device from a line side central control processing part (IXL) for transmitting a control signal from the line side central processing unit to the line side terminal unit, and a communication interface between the electronic interlocking unit IXL and the line side terminal unit And a line side information processing module 100 for supporting smooth train operation in the railway station.

The line termination device is composed of a line signal transmitter, a line converter, and the like.

The control signal used in the specification and claims of the present invention is a signal for controlling a line side terminal apparatus from a line side central processing unit and a status signal is a signal for sensing the state of the line side terminal apparatus.

The line side information processing module 100 includes a power board (not shown) for supplying power to each line level system, a CPU board 101 for input / output signal processing, Output board 102 for inputting and outputting status signals and control signals between the board 101 and the CPU board 101. The CPU board 101 includes a dual SSI communication unit 110 for communication impedance matching and insulation with the electronic interlocking unit IXL And a control signal from the electronic interlocking unit IXL received through the dual SSI communication unit 110 is input as a Manchester code signal to the first and second main processor 131, The first and second main processors 131 and 132 output the status signals transmitted from the input and output board 102 in parallel to the first and second main processors 131 and 132, The status signal of the line termination device output from the serial port 132 is transmitted to the SPI and outputs the converted Manchester code to the electronic interlock device IXL through the dual SSI communication part 110. The control signal outputted from the first and second main processors 131 and 132, Output signal processing units 121 and 122 for outputting signals to the input and output board 102 through the output unit 140 and the first and second transmission and reception signal processing units 121 and 122, And outputs the status signal of the line termination device to the first and second transmission and reception signal processing units 121 and 122 in an SPI manner by reading the control signal from the electronic interlocking unit IXL as an SPI- And first and second main processors 131 and 132 for outputting the first and second main processors 131 and 132, respectively.

3 is a detailed circuit diagram of the first and second transmission / reception signal processing units 121 and 122. The first and second transmission / reception signal processing units 121 and 122 receive (receive) signals from the dual SSI communication unit 110 A data receiving unit 220 for receiving and storing the control signals in the form of Manchester codes and converting the data into SPI data and providing the data to the first and second main processors 131 and 132, A data transmitter 230 for converting a signal received from the main processors 131 and 132 into a male sitter code and transmitting the same to the dual SSI communicator 110; And a clock distributor 211 provided to the receiver 230 and the transmitter 230. The data receiver 220 is composed of two channels and the data transmitter 230 is composed of one channel, And a built-in FPGA (Field Programmable Gate Array).

FIG. 4 is a detailed circuit diagram of the data receiving unit of FIG. 3. Referring to FIG. 3, the data receiving unit 220 receives the reception information by the SPI method as the reception completion signal is received by the first and second main processors 131 and 132 A falling edge detecting unit 221 for detecting and providing a falling edge of the Manchester main clock so as to read a Manchester code (mch_rx) signal transmitted from the electronic interlocking unit IXL, (Mch_main_int) according to completion of the Manchester code signal reception from the Manchester receiving unit 222 to the first and second main processors 131 and 132, And an SPI transfer unit 223 for providing the data to the first and second main processors 131 and 132 as data of the first and second main processors 131 and 132, respectively.

3 is a detailed circuit configuration diagram of the data transmission unit 230. The data transmission unit 230 transmits information to be transmitted from the first and second main processors 131 and 132 to the electronic interlocking unit IXL via an SPI A Manchester code transmitting unit 233 for converting the information received from the SPI receiving unit 232 into the Manchester code and outputting the Manchester code to the electronic interlocking unit IXL, And a rising edge detecting unit 231 for detecting a rising edge u_edge to receive an input of Manchester transmission data with a rise edge of Manchester transmission clock at the SPI receiving unit 232 and providing the rising edge u_edge to the SPI receiving unit 232 .

Detailed operation of the communication device of the line information processing module for a train according to the embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5. FIG.

First, in the CPU board of the line side information processing module, first and second transmission / reception signal processing units 121 and 122 (first and second transmission / reception signal processing units) 121 and 122, which are not dedicated polling methods by the first and second main processors 131 and 132, ) Is configured as an FPGA and a Manchester code type signal and an SPI type signal are converted and transmitted between the electronic interlock device IXL as an upper system and the first and second main processors 131 and 132, Thereby maintaining a secure communication interface between the electronic interlocking device IXL and the line side terminal device.

FIG. 2 is a block diagram of an entire communication device of a line side information processing module for a train according to an embodiment of the present invention. The CPU board 101 includes a CPU 101, Output board 102 to input / output a signal.

The CPU board 101 communicates with the electronic interlocking device IXL through a dual SSI communication unit 110. The dual SSI communication unit 110 controls the Manchester code type control transmitted from the electronic interlocking device IXL (NET RX A, B) 30 bits to the first and second transmission / reception signal processing units 121 and 122.

When the 30 bits of the control information received from the dual SSI communication unit 110 are terminated, the first and second transmission / reception signal processing units 121 and 122 receive And outputs a termination signal.

The first and second main processors 131 and 132 sequentially read the 30-bit control information in the SPI manner as the reception end signal is received.

The control information read by the first and second main processors 131 and 132 is analyzed and output to the output unit 150 through the first and second transmission and reception signal processing units 121 and 122, OUT3), and the output unit 150 controls the corresponding line termination device through the input / output board 102 based on the input control information.

The first and second main processors 131 and 132 analyze the state information IN1 to INn of the line variable terminal apparatus from the input / output board 102, analyze the state information, And outputs it to the first and second transmission / reception signal processing units 121 and 122 in an SPI manner.

The first and second transmission and reception signal processing units 121 and 122 convert the received SPI state information into Manchester codes and transmit the converted state information to the electronic interlock device IXL through the dual SSI communication unit 110 A, TX B) (CTL A, CTL B).

Here, the dual SSI communication unit 110 is a current loop communication drive, and includes two transmission / reception circuits.

In addition, the first and second main processors 131 and 132 perform the same operation and mutually monitor the processing states. If they are different from each other, the first and second main processors 131 and 132 determine that the system is in error, Shutdown).

The output unit 150 supplies driving power of a terminal device such as a signal lamp of a line side and a line switching device, and outputs DC24V, AC380, DC48V, and a control signal.

The first and second transmission / reception signals, which are converted into the Manchester code format and the SPI format, to transmit control information or status information between the first and second main processors 131 and 132 and the dual SSI communication section 110, The processing units 121 and 122 will be described in detail as follows.

3 is a detailed circuit diagram of the first and second transmission and reception signal processing units 121 and 122. The clock frequency divider 211 divides the frequency of the clock signal 20MHZ into two and outputs the data to the data receiving unit 220 and the data transmission number 230).

The data receiver 220 is composed of two channels and receives a Manchester code 30-bit transmitted from the electronic interlocking unit IXL and forms a waveform (MCH_RX1, MCH_RX2). The first and second main processors 131 (MCH_RX1_INT, MCH_RX2_INT) and the data (MCH_RX1_DAT, MCH_RX2_DAT) to the receiving terminal

The data transmitter 230 converts the state information received from the first and second main processors 131 and 132 into a Manchester code form (MCH_TX_STA) and transmits the state information to the electronic interlock device IXL.

FIG. 4 is a detailed circuit diagram of the data receiving unit 220 in FIG. 3,

The falling edge detecting unit 221 detects the falling edge of the Manchester main clock mch_main_clk used for reading the receiving information in accordance with the SPI method when the reception completion signal mch_main_int is received by the first and second main processors 131 and 132 The falling edge is detected and output as 'sclk_neg'.

The Manchester receiving unit 222 receives the Manchester code 30 bits transmitted from the electronic interlocking unit IXL as mch_rx and receives the received information as a sequential bit stream after waveform shaping to improve the transmission error and outputs the received information to the end_receive_r_data To the SPI transmitting unit 223 through the SPI transmitting unit 223.

The SPI transmitting unit 223 outputs the reception end signal mch_main_int to the first and second main processors 131 and 132 when the information is received from the Manchester receiving unit 222, , The second main processor 131 (132) sequentially reads 30 bits of received data in the SPI manner through the MCH_RX1_CLK and MCH_RX_DAT terminals as the reception end signal is received.

In this way, the bit stream transmitted to the waveform shaping circuit included in the data receiving unit 220 corrects the distortion of the transmission information due to the characteristics of the transmission path or the disturbance, minimizes the transmission error, and realizes transmission and reception in real time, And transmits and receives information to and from the interworking device (IXL) using the Manchester 2 encoded receive channel and the transmit 1 channel.

FIG. 5 is a detailed circuit diagram of the data transmitting unit 230 in FIG. 3,

The rising edge detecting unit 231 detects the rising edge u_edge to receive the input of the Manchester transmission data mch_tx1_dat with the rising edge of the received Manchester code transfer clock mch_tx_clk and provides it to the SPI receiving unit 232 .

The SPI receiver 232 receives (sclk, sdin) the 30 bits of information to be transmitted from the first and second main processors 131 and 132 to the electronic interlock device IXL by the SPI method and stores them in a register, To the Manchester code transmitting section 233. (tx_data [29: 0])

The Manchester code transmitting unit 233 converts the 30-bit information received by the SPI receiving unit 232 in the SPI mode into the Manchester code and transmits it to the electronic interlinking unit IXL. (Mch_tx)

Although specific embodiments of the present invention have been described and illustrated above, it is to be understood that various modifications may be made by those skilled in the art in accordance with the number of multiplexed information processing modules of the present invention.

It should be understood, however, that such modified embodiments are not to be understood individually from the spirit and scope of the invention, and such modified embodiments are intended to be included within the scope of the appended claims.

100: Line side information processing module 101: CPU board
102: I / O board 110: Dual SSI communication unit
121, 122: First and second transmission / reception signal processing units 131, 132: First and second main processor
141 and 142: first and second display parts 150: input and output boards
211: clock frequency divider 220: data receiving unit
221: rising edge detecting section 222: Manchester code receiving section
223: SPI transmission unit 230: Data transmission unit
231: falling edge detector 232: SPI receiver
233: Manchester Code Transmission Department

Claims (10)

A communication device of a line side information processing module for receiving a control signal from an electronic interlocking device for controlling a line side ending device and transmitting a status signal of the line side ending device to the electronic interlocking device,
The line side information processing module includes:
A dual SSI (Solid State Interlocking) communication unit for communication impedance matching and insulation with the electronic interlock device;
A control signal from the electronic interlock device is received through the dual SSI communication unit, and when the reception is completed, a reception end signal is transmitted to each of the first and second main processors, and a state signal of the line- 1) first and second transmission / reception signal processing units which receive signals through a second main processor, convert them into a Manchester code form, and output the signals to the dual SSI communication unit; And
Reception signals from the first and second transmission / reception signal processing units, and outputting the status signals of the line-type end equipment to the first and second transmission / reception signal processing units A first main processor and a second main processor,
Wherein the first and second transmission /
A data receiving unit for receiving and storing the control signal received from the dual SSI communication unit in Manchester code form and converting the data into data of a serial peripheral interface (SPI) type and providing the data to the first and second main processors; And
And a data transmission unit for converting a status signal of the line-transformed terminal apparatus received from the first and second main processors into a Manchester code form and transmitting the converted status code to the dual SSI communication unit. The communication device of the module. The method according to claim 1,
The first and second main processors perform the same processing, monitor the mutual processing status, judge an error if they are not identical, output response information in response to an error, or, if mutual processing is normal, To the first and second transmission / reception signal processing units in the same manner as that of the first embodiment. The method according to claim 1,
Wherein the first and second transmission /
Each of the first and second main processors receives the status signals from the line termination devices and outputs them in parallel to each of the first and second main processors,
And the control signal from the electronic interlocking unit, which is input from the first and second main processors, is output to the line side terminal unit via the output unit. The method according to claim 1,
Wherein the first and second transmission / reception signal processing units are constituted by an FPGA (Field Programmable Gate Array) incorporating a Manchester code communication driver. delete The method according to claim 1,
Wherein the data receiving unit comprises two channels, and the data transmitting unit comprises one channel. The method according to claim 1,
Wherein the data transmission unit comprises: an SPI receiving unit for receiving information to be transmitted from the first and second main processors to the electronic interlocking unit in a SPI manner and storing the information in a register; And
And a Manchester code transmitter for converting the information received from the SPI receiver into the Manchester code and outputting the Manchester code to the electronic interlocking device. 8. The method of claim 7,
Wherein the data transmission unit further comprises a rising edge detecting unit for detecting a rising edge to receive an input of Manchester transmission data with a rising edge of a Manchester transmission clock at the SPI receiving unit and providing the rising edge to the SPI receiving unit. A communication device of the side information processing module. The method according to claim 1,
Wherein the data receiving unit comprises: a Manchester receiving unit for receiving the Manchester code signal transmitted from the electronic interlocking unit through the dual SSI communication unit;
An SPI transmission unit for outputting a reception completion signal to the first and second main processors in response to completion of the Manchester code signal reception from the Manchester reception unit and for providing the SPI type data to the first and second main processors; And a control unit for controlling the communication unit. 10. The method of claim 9,
Wherein the data receiving unit further comprises a falling edge detecting unit for searching a falling edge of the Manchester main clock and outputting the falling main edge to the SPI transmitting unit so that the first and second main processors can use the SPI receiving information. Communication device of line side information processing module for train.
KR1020150130500A 2015-09-15 2015-09-15 Apparatus for Communication of Trackside Signal Processing Modules in Railroad KR101594890B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100673535B1 (en) 2006-07-28 2007-01-24 삼도산업전기(주) The method of multi-monitoring and automatic switching system for trackside signal processing modules in railroad
KR101210930B1 (en) * 2012-07-04 2012-12-11 대연시스템(주) Control apparatus for automatic switch of trackside signal processing modules in railroad

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100673535B1 (en) 2006-07-28 2007-01-24 삼도산업전기(주) The method of multi-monitoring and automatic switching system for trackside signal processing modules in railroad
KR101210930B1 (en) * 2012-07-04 2012-12-11 대연시스템(주) Control apparatus for automatic switch of trackside signal processing modules in railroad

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