KR20140141068A - Active repeater device for MVB communication of electric rail car - Google Patents

Active repeater device for MVB communication of electric rail car Download PDF

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Publication number
KR20140141068A
KR20140141068A KR1020130062349A KR20130062349A KR20140141068A KR 20140141068 A KR20140141068 A KR 20140141068A KR 1020130062349 A KR1020130062349 A KR 1020130062349A KR 20130062349 A KR20130062349 A KR 20130062349A KR 20140141068 A KR20140141068 A KR 20140141068A
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KR
South Korea
Prior art keywords
mvb
communication
data
connector
repeater device
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KR1020130062349A
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Korean (ko)
Inventor
전성준
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인터콘시스템스 주식회사
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Priority to KR1020130062349A priority Critical patent/KR20140141068A/en
Publication of KR20140141068A publication Critical patent/KR20140141068A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network

Abstract

The present invention relates to an active repeater device for MVB communication of an electromotive vehicle. In order to perform the MVB communication with various devices of the electromotive vehicle, the repeater device includes: a main processor that drives an operating system (OS) and an application program and monitors and controls the overall system; a program memory where the operating system (OS) and the application program are stored; a system memory where the operating system (OS) and the application program are loaded; a cache memory for temporally storing commands for computation; an input/output buffer for reset and LED control; PC connection connector provided in a front panel console to make Ethernet communication and RS232 communication with the PC; and first and second MVB controllers for receiving data through an MVB communication line. According to the present invention, the repeater device, which is installed in a rack of an MVB system of the electromotive vehicle to perform the MVB communication with other devices, performs the data communication through the MVB communication line through a dual structure to transceive the data, so that the reliability can be improved. In addition, the application programs for analyzing MVB communication data can perform the Ethernet communication with the PC, so that the program development and application can be readily achieved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an active repeater device for an electric vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an active type repeater apparatus for an M / V communication of a train, and more particularly, to a system for monitoring and controlling various devices of an electric vehicle and being mounted on a rack of a MVB system for a train And an apparatus for performing MVB communication with another apparatus.

Generally, in order to ensure safe and comfortable operation of a train, precise signal information exchange between on-board and ground signal equipments and each control device and status information installed on the vehicle must be accurately displayed on the monitor screen provided in the cab.

In general, when TCN (Train Communication Network) communication network is used, the control devices attached to various electrical equipments are connected to a simple structure network, thereby improving the overall reliability, safety and timeliness of the railway system.

Also, the flexibility and scalability of the system can be increased by using the TCN communication network.

The TCN consists of two communication network protocols: MVF (Multifunction Vehicle Bus), which is responsible for real-time communication between control devices in the vehicle, and WTB (Wire Train Bus), which is responsible for real-time communication between vehicles.

TCN communication network can save the cost and effort due to the complicated wiring structure compared with the existing one-to-one communication and can greatly reduce the influence of noise due to the use of digital signal .

In particular, the MVB is a method of communicating with a train control and monitoring system (TCMS) and a subordinate device in a train car. Conventionally, serial communication has been generally used, but it is rapidly changing to the MVB communication method recently. Such MVB communication is an international standard for train communication system, in which devices and devices communicate with each other in a train. MVB communication is a structure in which one bus administrator polls and responds to a plurality of slave devices.

Despite these advantages, if an error occurs in the MVB communication network, it can cause a catastrophic failure of the vehicle. Therefore, MVB system is very important to monitor and control various devices of trains and to manage trains in a comprehensive manner.

On the other hand, a MVB communication analyzer of a train vehicle which real-time analyzes the real-time data, the physical connection state, and the redundancy state of each sub-device connected by the MVB communication method in each vehicle constituting the train, 0938209. This can reduce the disputes between the devices connected to the MVB communication in the train car and verify the MVB communication status to enable inter-device interface more quickly. However, And does not have a function for convenience such as data communication.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide an MVB system for a train, which monitors and controls various devices of a train and comprehensively manages trains, And to provide an active repeater device for a MVB communication of a train that performs communication.

In particular, it is an object of the present invention to provide an active repeater device that can increase the reliability of data transmitted through an MVB communication line by duplicating an MVB communication structure and has an Ethernet communication function useful for device development.

In order to solve such a technical problem,

In order to perform MVB communication with various devices of a train, a repeater device includes a main processor for operating an operating system (OS) and an application program and monitoring and controlling the entire system; A program memory for loading an operating system (OS) and an application program; A system memory in which an operating system and an application program are loaded; A cache memory for temporarily storing a command or the like for an operation; An input / output buffer for reset and control of the LED; A PC connection connector provided on the front panel console side to perform Ethernet communication and RS232 communication with the PC; And a first and a second MVB controller for receiving data through the MVB communication line. The active repeater apparatus of the present invention includes:

At this time, the main processor performs data communication with the PC through the PC connection connector, transmits and receives the MVB communication data through the RS-232c driver, and transmits and receives the update data of the OS and the application program through the Ethernet PHY.

The PC connection connector is a D-SUB 9-pin connector for both Ethernet download and serial monitoring of the front panel console. The RJ-45 connector for downloading Ethernet on the PC side and the D-SUB 9 pin And is connected to a connector.

In particular, the first and second MVB controllers perform data communication with the MVB communication line through the first and second MVB line driver circuits.

The first and second MVB communication connectors are connected to first and second MVB line driver circuits for data communication with the MVB communication line, and the first and second MVB communication connectors are for serial monitoring And a D-SUB 9-pin connector.

The driving power of the main processor is supplied through a VME connector connected to a back plane.

At this time, the power supplied through the VME connector is a + 5V DC power supply, and the + 5V DC power supply is converted into 3.3V and 1.8V through a regulator of a power logic and is supplied.

According to the present invention, a repeater device mounted on a rack of a MVB system for a train and performing MVB communication with another device transmits and receives data through a redundant structure of data communication with the MVB communication line, And application programs for MVB communication data analysis and the like can be performed through the Ethernet communication with the PC, which makes it easy to develop and apply the program.

1 is a configuration diagram of an active repeater for MOBIS communication of a train according to the present invention.
FIG. 2 is an internal pin layout diagram of a D-SUB 9, which is a PC connector for a front panel console according to the present invention.

The characteristics of the active repeater according to the present invention can be understood by referring to the attached drawings of the active repeater apparatus for M / V communication of the train according to the present invention.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

Referring to FIG. 1, an active repeater device for an M / V communication of a train according to the present invention is mounted on a MVB system rack for a train. The MVB system monitors and controls various devices of the train, .

The repeater device according to the present invention is a board type device that performs MVB communication with various devices of a train, and includes a main processor 10 for operating an operating system (OS) and an application program and monitoring and controlling the entire system, A program memory 12 for loading an operating system (OS) and a drive application program, a system memory 14 for loading an operating system and an application program, a cache memory 16 for temporarily storing instructions and the like for calculation, Output buffer 19 for controlling the reset and LED 18 and PC connection connector 22 provided on the front panel console 20 side to perform Ethernet communication and RS232 communication with the PC 100, And first and second MVB controllers 30 and 40 for receiving data through the MVB communication line.

Hereinafter, the constitution of each part of the present invention will be described in detail.

First, the main processor 10 can use an MPC860T-50 MHz processor, which is a 32-bit processor, and it includes various communication ports and a controller for controlling the entire repeater apparatus according to the present invention, The space can be saved more than when a separate CPU and a controller for communication are used, and a bus (BUS) cycle for accessing them can be minimized, thereby enabling higher-speed processing.

At this time, the MPC860T has one FEC (Fast Ethernet Controller), four SCC and two SMCs for external communication and monitoring. The FEC is used for the development of a device program with a 10 / 100Base-T Fast Ethernet Port, and the SMC is used for RS-232C communication.

An operating system (OS) for operating the repeater according to the present invention is stored in the program memory 12. The operating system includes a VxWorks in a Real Time Operating System, The program is also stored.

Such a program memory 12 may be a flash memory, for example, a memory having a storage capacity of 8M bytes.

On the other hand, the system memory 14 has a total capacity of 32 M bytes using two 8-Mbyte by 16-bit SDRAMs and a data width of 32 bits. In addition, the cache memory 16 is used for storage of environment variables and includes a real time clock (RTC) function, such as 128 kbytes of SRAM or 512 kbytes of NVRAM. RTC function can provide time information of year / month / day / hour and can store / maintain long-term data.

On the other hand, the repeater device (or board) has a dual MVB (Multifunction Vehicle Bus) communication port, a 1-channel RS-232 port for communication, and an Ethernet port for convenience in program development. Also, the repeater apparatus according to the present invention is supplied with DC power of + 5V through the VME connector 50 connected to the back plane. In this case, use + 5V DC from VME connector J1 and convert 5V to 3.3V and 1.8V for internal 3.3V and 1.8V devices.

The repeater device includes a CPLD (Complex Programmable Logic Device) 21 in which a control signal for a memory, an LED control signal, and a Reset related processing circuit are implemented.

The two SMCs of the MPC 860T used in the main processor 10 are used for RS-232C communication, and the SMC 1 is connected to the PC connection connector 22 provided in the front panel console 20 together with the 10/100 Fast Ethernet port . In this case, the SMC 1 of the MPC 860T transmits / receives data through the RS-232c driver 24 for communication with the external PC 100, and the FCC of the MPC 860T for the 10/100 Fast Ethernet port uses the ETHERNET PHY 26 ) To transmit and receive data.

At this time, the PC connection connector 22 may be composed of a D-SUB 9, which is a 9-pin connector, through which the user can communicate with the PC 100 using the D-SUB 9. The internal pin arrangement of the D-SUB 9 of the front panel console 20 is as shown in FIG.

Therefore, a cable for connection between the PC 100 and the repeater apparatus according to the present invention is used for the PC connection.

The PC connection cable includes a D-SUB 9-pin connector for both Ethernet download and serial monitoring, which is the PC connection connector 22 of the front panel console 20 of the repeater apparatus, and an RJ-45 Connector and a D-SUB 9-pin connector for serial monitoring. In this case, the cable is manufactured using UTP CATEGORY5 (100MHz, 10 / 100BASE-T, IEEE802.3) and RS-232C cable.

Meanwhile, the first and second MVB controllers 30 and 40 are responsible for the MVB communication between the repeater device and the electrical components in the carriage of the train.

At this time, the first and second MVB controllers 30 and 40 are duplicated with each other in the same structure, thereby performing MVB communication with the electrical components in the train carriage, thereby enabling stable signal transmission and reception.

The first and second MVB controllers 30 and 40 use xc2s300e-PT256I of Xilinx Inc. as a PLD, and MVBC, Traffic Memory, RS-485 Transceiver, Transformer and Serial ROM for controlling them are integrated.

The MVBC is responsible for MVB communications. It can select the main channel and redundant channel automatically by checking the state of the MVB communication line and the signal (signal). It can internally control the Manchester Encode and Decode functions for each channel. Logic is implemented. In addition, there is a function of interfacing with the traffic memory so that data to be communicated can be shared with the CPU (MPC860T) which is the main processor 10.

The traffic memory uses SRAM having a capacity of 256k x 16Bit (512KB) and stores data received from the MVB communication line and data to transmit. Data for interface between the CPU (MPC860T) of the main processor 10 and the MVBC Use as space.

The RS-485 transceiver converts the data transmitted to the module through the MVBC into an RS-485 differential signal, and uses a total of two channels.

The Transformer also uses the MVB communication signal to isolate from external influences.

In addition, the serial ROM uses XCF02S, which stores circuitry necessary to implement the first half of the MVB, and loads the FPGA on the board when the power is first applied to the board.

Meanwhile, the first and second MVB controllers 30 and 40 perform data communication with the MVB communication line through the first and second MVB line driver circuits 32 and 42, respectively. The first and second MVB communication connectors 34 and 44 are respectively connected to the first and second MVB line driver circuits 32 and 42 for data communication with the MVB communication line, (34,44) uses a D-SUB 9-pin connector for serial monitoring.

The power for driving the repeater apparatus is supplied with DC power of +5 V through the VME connector 50 connected to the back plane. This causes the + 5V DC input voltage to be supplied to the regulator of the power logic 52, ) To 3.3V and 1.8V, and supplies the power for various devices in the device.

Hereinafter, an operation example of an active repeater for MVB communication of a train according to the present invention will be described with reference to FIGS. 1 and 2. FIG.

In order to perform MVB communication with various devices of the train, the repeater device is mounted on a MVB system rack for a train, and DC power is supplied through a VME connector 50 connected to a back plane to supply power for driving the repeater device. DC power supply to supply power for various devices in the apparatus.

When the power is supplied, the main processor 10 drives an operating system (OS) of the program memory 12 to boot the system, loads the application program into the system memory 14, and drives various functions of the repeater device .

The main processor 10 is also capable of performing Ethernet communication and RS232 communication with a PC and also has a D-SUB 9-pin connector for serial monitoring, which is first and second MVB communication connectors 34 and 44 connected to the MVB communication line And carries out data communication between each device installed in the carriage of the train.

In this case, the data of the MVB communication line input to the first and second MVB controllers 30 and 40 is transmitted and received through the duplicated MVB (Multifunction Vehicle Bus) communication. The main processor 10 monitors the status of the MVB communication line, It is checked whether communication is performed.

The repeater device (or board) is connected to the PC 100 through a PC connection cable through a D-SUB 9-pin connector for both Ethernet download and serial monitoring provided in the front panel console 20, The data of the communication line can be transmitted to the PC 100. [

Accordingly, the PC 100 can receive and confirm the data of the MVB communication line through the D-SUB 9-pin connector for serial monitoring by operating a separate application program. Of course, the data transmission / reception for development such as program update of the repeater device may be performed through the R-45 connector for downloading Ethernet on the PC 100 side and the Ethernet download and serial monitoring D-SUB 9-pin connector.

Here, the repeater device is mounted on the MVB system rack for the train to perform MVB communication with various devices of the electric vehicle. However, the repeater device can be independently manufactured as one product and mounted on the vehicle, and the main processor 10 It can be replaced with a function equivalent to the MPC860T-50MHz processor, which is a 32-bit processor.

While the present invention has been described in connection with what is presently considered to be preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: main processor 12: program memory
14: system memory 16: cache memory
18: Reset and LED 20: I / O buffer
20: Front panel console 21: CPLD
22: PC connector 24: RS-232c driver
26: ETHERNET PHY 30: 1stMVB controller
32: first MVB line driver circuit 34: first MVB communication connector
40: second MVB controller 42: second MVB line driver circuit
44: Fourth MVB communication connector 50: VME connector
52: Fear Logic 100: PC

Claims (7)

In order to perform MVB communication with various devices of a train, a repeater device includes a main processor for operating an operating system (OS) and an application program and monitoring and controlling the entire system; A program memory for loading an operating system (OS) and an application program; A system memory in which an operating system and an application program are loaded; A cache memory for temporarily storing a command or the like for an operation; An input / output buffer for reset and control of the LED; A PC connection connector provided on the front panel console side to perform Ethernet communication and RS232 communication with the PC; And a first and a second MVB controller for receiving data through the MVB communication line.
The method according to claim 1,
Wherein the main processor performs data communication with a PC through a PC connection connector, transmits and receives MVB communication data through an RS-232c driver, and transmits and receives update data of an OS and an application program through an Ethernet PHY. V repeater active repeater device.
The method according to claim 1,
The above PC connection connector is a D-SUB 9-pin connector for both Ethernet download and serial monitoring of the front panel console. The RJ-45 connector for downloading Ethernet on the PC side and the D-SUB 9-pin connector for serial monitoring via UTP cable Wherein the first and second repeater units are connected to each other.
The method of claim 3,
Wherein the first and second MVB controllers perform data communication with the MVB communication line through the first and second MVB line driver circuits.
The method according to claim 1,
The first and second MVB communication connectors are connected to first and second MVB line driver circuits for data communication with the MVB communication line, and the first and second MVB communication connectors are connected to a serial monitoring D-SUB And a 9-pin connector.
The method according to claim 1,
Wherein the driving power of the main processor is supplied through a VME connector connected to a back plane.
The method according to claim 6,
Wherein the power supplied through the VME connector is a + 5V DC power supply, and the + 5V DC power supply is converted to 3.3V and 1.8V through a regulator of a power logic and supplied. V repeater active repeater device.
KR1020130062349A 2013-05-31 2013-05-31 Active repeater device for MVB communication of electric rail car KR20140141068A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106487628A (en) * 2015-08-28 2017-03-08 中车大连电力牵引研发中心有限公司 MVB repeater based on two independent FPGA
CN110654421A (en) * 2019-11-08 2020-01-07 中车株洲电力机车有限公司 Method and device for communication by using multifunctional vehicle bus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106487628A (en) * 2015-08-28 2017-03-08 中车大连电力牵引研发中心有限公司 MVB repeater based on two independent FPGA
CN106487628B (en) * 2015-08-28 2022-09-23 中车大连电力牵引研发中心有限公司 MVB repeater based on two independent FPGAs
CN110654421A (en) * 2019-11-08 2020-01-07 中车株洲电力机车有限公司 Method and device for communication by using multifunctional vehicle bus

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