KR101594890B1 - Apparatus for Communication of Trackside Signal Processing Modules in Railroad - Google Patents
Apparatus for Communication of Trackside Signal Processing Modules in Railroad Download PDFInfo
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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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- spi
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- 238000004891 communication Methods 0.000 title claims abstract description 66
- 238000012545 processing Methods 0.000 title claims description 35
- 230000010365 information processing Effects 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 59
- 230000009977 dual effect Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 18
- 230000000630 rising effect Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000007493 shaping process Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 101001028722 Chironex fleckeri Toxin CfTX-B Proteins 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 238000010291 electrical method Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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.
Description
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
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.
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
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
3 is a detailed circuit diagram of the first and second transmission / reception
FIG. 4 is a detailed circuit diagram of the data receiving unit of FIG. 3. Referring to FIG. 3, the
3 is a detailed circuit configuration diagram of the
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
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
The
When the 30 bits of the control information received from the dual
The first and second
The control information read by the first and second
The first and second
The first and second transmission and reception
Here, the dual
In addition, the first and second
The
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
3 is a detailed circuit diagram of the first and second transmission and reception
The
The
FIG. 4 is a detailed circuit diagram of the
The falling
The
The
In this way, the bit stream transmitted to the waveform shaping circuit included in the
FIG. 5 is a detailed circuit diagram of the
The rising
The
The Manchester
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
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)
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 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.
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.
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.
Wherein the data receiving unit comprises two channels, and the data transmitting unit comprises one channel.
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.
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.
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.
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.
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KR1020150130500A KR101594890B1 (en) | 2015-09-15 | 2015-09-15 | Apparatus for Communication of Trackside Signal Processing Modules in Railroad |
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KR1020150130500A KR101594890B1 (en) | 2015-09-15 | 2015-09-15 | Apparatus for Communication of Trackside Signal Processing Modules in Railroad |
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Citations (2)
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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2015
- 2015-09-15 KR KR1020150130500A patent/KR101594890B1/en active IP Right Grant
Patent Citations (2)
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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