KR20080039710A - Communication network apparatus for using in railway vehicle - Google Patents

Communication network apparatus for using in railway vehicle Download PDF

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KR20080039710A
KR20080039710A KR1020060107380A KR20060107380A KR20080039710A KR 20080039710 A KR20080039710 A KR 20080039710A KR 1020060107380 A KR1020060107380 A KR 1020060107380A KR 20060107380 A KR20060107380 A KR 20060107380A KR 20080039710 A KR20080039710 A KR 20080039710A
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control unit
communication
data
wtb
mvb
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KR1020060107380A
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KR100837154B1 (en
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홍구선
한정수
김훈
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현대로템 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
    • B61L15/0018—Communication with or on the vehicle or vehicle train
    • B61L15/0036—Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40293—Bus for use in transportation systems the transportation system being a train

Abstract

A communication network apparatus of a railway vehicle is provided to perform real-time communication without a data transmission delay by direct communication between an MVB(Multifunction Vehicle Bus) communication control unit and a WTB(Wired Train Bus) communication control unit through an internal bus. A communication network apparatus of a railway vehicle includes a WTB communication control unit, an MVB communication control unit, a CPU(Central Processing Unit) module, and a memory unit. The WTB communication control unit receives data from an internal buffer and outputs the data to a WTB communication line after storing the data in the internal buffer. The MVB communication control unit receives the data from the internal buffer and outputs the data to an MVB communication line. The CPU module controls to output data to be transmitted to a WTB through the WTB communication control unit and controls to output data to be transmitted to an MVB through the MVB communication control unit. The memory unit stores the data from MVB communication control unit and the WTB communication control unit, and outputs the stored data to the WTB communication control unit and the MVB communication control unit.

Description

철도차량의 통신 네트워크 장치{COMMUNICATION NETWORK APPARATUS FOR USING IN RAILWAY VEHICLE}COMMUNICATION NETWORK APPARATUS FOR USING IN RAILWAY VEHICLE}

도 1 은 종래의 차량내 전자장치간 통신 인터페이스와 각 차량간 통신 인터페이스간 통신 네트워크 장치의 접속 구성을 개략적으로 나타낸 구성도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram schematically illustrating a connection configuration of a communication interface between an in-vehicle electronic device and a communication interface between each vehicle.

도 2 는 종래의 통신 네트워크 장치의 세부 구성을 나타낸 개략 블럭도. 2 is a schematic block diagram showing a detailed configuration of a conventional communication network device.

도 3 은 본 발명에 따른 철도차량의 통신 네트워크 장치를 개략적으로 나타낸 블럭도.3 is a block diagram schematically showing a communication network device of a railway vehicle according to the present invention;

본 발명은 철도차량의 통신 네트워크 장치에 관한 것으로, 특히 MVB 통신부와 MTB 통신부를 통합한 통신 네트워크 장치에 관한 것이다. The present invention relates to a communication network device of a railway vehicle, and more particularly, to a communication network device integrating an MVB communication unit and an MTB communication unit.

도 1 은 종래의 차량내 전자장치간 통신 인터페이스와 각 차량간 통신 인터페이스간 통신 네트워크 장치의 접속 구성을 개략적으로 나타낸 구성도이다. 1 is a block diagram schematically illustrating a connection configuration of a communication interface between an in-vehicle electronic device and a communication interface between each vehicle.

도 1 에 도시된 바와 같이, 각 차량에는 게이트웨이가 배치되어 있고, 각 게이트웨이에는 MVB통신부(보드), WTB통신부(보드) 및 파워공급부 등으로 구성되며, 각 차량간에는 WTB통신부가 서로 접속되어 있다. 여기서, MVB 는 차량내의 전 자기기들 사이에 통신을 담당하는 통신버스이고, WTB는 전동차를 구성하는 차량간의 통신버스를 말한다. As shown in Fig. 1, each vehicle is provided with a gateway, and each gateway is composed of an MVB communication unit (board), a WTB communication unit (board), a power supply unit, and the like, and the WTB communication units are connected to each other. Here, MVB is a communication bus in charge of communication between the electronic devices in the vehicle, WTB is a communication bus between the vehicles constituting the electric vehicle.

또, 각 차량 내에서 MVB 통신부(MVB보드)와 파워공급부를 구비하는 전자장치가 탑재되는데, 이들은 MVB통신부를 통해 서로 접속되어 있고, 또 게이트웨이의 MVB 통신부(보드)에 통신 접속되어 있다. In addition, electronic devices including an MVB communication unit (MVB board) and a power supply unit are mounted in each vehicle, which are connected to each other via the MVB communication unit, and are also connected to the MVB communication unit (board) of the gateway.

또, 게이트웨이 내의 MVB통신부와 WTB통신부는 통신접속되어 있으며, 보드간에 상호 통신하도록 구성되어 있다. The MVB communication unit and the WTB communication unit in the gateway are connected to each other, and are configured to communicate with each other.

이러한 종래의 통신 네트워크 장치는, 동작시, 차량 1, 2의 전자장치 1,2,3,4,5가 각각의 MVB통신부를 통하여 게이트웨이의 MVB통신부와 데이터를 교환하여 통신하도록 구성되어 있고, 또, 도 2 에 도시된 바와같이, 게이트웨이의 MVB통신부가 동일 게이트웨이에 존재하는 WTB통신부와 외부버스를 경유하여 보드간 통신하여 데이터를 교환하도록 구성되어 있고, 또한, 각 차량의 게이트웨이의 WTB통신부가 서로 WTB를 통하여 서로 통신하여 데이터를 교환하도록, 구성되어 있다. Such a conventional communication network device is configured such that, in operation, the electronic devices 1,2,3,4,5 of the vehicles 1 and 2 exchange data with the MVB communication unit of the gateway via respective MVB communication units. As shown in FIG. 2, the MVB communication unit of the gateway is configured to exchange data by communicating between boards via an external bus and the WTB communication unit existing in the same gateway. And exchange data by communicating with each other via WTB.

즉, 차량간에 통신하는 WTB통신부와 차량내 기기간 통신하는 MVB통신부를 외부버스를 통하여 상호연결하여 통신하고 있다. That is, the WTB communication unit communicating between vehicles and the MVB communication unit communicating between in-vehicle devices are connected to each other via an external bus.

이와 같은 종래의 철도차량 통신 네트워크 장치의 구체적인 구성이 도 2 에 도시되어 있다. 도 2 는 종래의 통신 네트워크 장치의 세부 구성을 나타낸 개략 블럭도이다. 도 2 에 도시된 종래의 철도차량 통신 네트워크 장치는 WTB 통신부, MVB 통신부 및 외부버스를 구비하고, WTB 통신부, MVB 통신부는 외부버스를 경유하여 데이터를 주고 받는다. 또한, WTB 통신부와 MVB 통신부는 외부버스 인 터페이스 회로를 구비하고, 외부버스와 인터페이스하도록 구성되어 있다. 또, MVB 통신부와 WTB 제어부의 외부버스 인터페이스 제어부는 각 제어부의 내부 데이터버스 및 어드레스 버스로 이루어진 내부버스를 제어하여 원활한 데이터 흐름을 제어한다. The detailed configuration of such a conventional railway vehicle communication network device is shown in FIG. 2 is a schematic block diagram showing a detailed configuration of a conventional communication network device. The conventional railway vehicle communication network device shown in FIG. 2 includes a WTB communication unit, an MVB communication unit, and an external bus, and the WTB communication unit and the MVB communication unit exchange data via an external bus. In addition, the WTB communication unit and the MVB communication unit have an external bus interface circuit and are configured to interface with an external bus. In addition, the external bus interface control unit of the MVB communication unit and the WTB control unit controls an internal bus including an internal data bus and an address bus of each control unit to control smooth data flow.

동작시, WTB 통신라인을 통해 전달된 데이터는 WTB 통신부(의 버퍼)에 저장되고, WTB 통신제어부는 메인 CPU모듈로 데이터 전달상태를 플래그 정보로 전달한다. 그러면, WTB 통신부의 메인 CPU 는 전달받은 플래그에 의해 WTB 통신제어부의 버퍼에 저장된 데이터를 판독하여 메모리부에 저장한다. 이때, 만약 전달된 데이터가 MVB 라인으로 다시 전송하도록 이미 정의된 데이터인 경우, WTB 통신부의 메인 CPU 모듈은 해당 데이터를 외부버스를 통해 MVB 통신부의 메모리부로 전달하고, 해당 정보를 MVB 보드의 메모리부에 전달한다. 그러면, MVB 통신부의 메인 CPU모듈은 WTB 통신부로부터 전달된 정보와 데이터를 이용하여 해당 데이터를 MVB 통신부를 통해 MVB 통신라인으로 전송할 수 있도록 제어한다. In operation, the data transmitted through the WTB communication line is stored in the WTB communication unit (buffer), and the WTB communication control unit transmits the data transfer state as flag information to the main CPU module. Then, the main CPU of the WTB communication unit reads the data stored in the buffer of the WTB communication control unit according to the received flag and stores it in the memory unit. At this time, if the transferred data is already defined to be transmitted back to the MVB line, the main CPU module of the WTB communication unit transfers the data to the memory unit of the MVB communication unit via an external bus, and transfers the corresponding information to the memory unit of the MVB board. To pass on. Then, the main CPU module of the MVB communication unit controls to transmit the corresponding data to the MVB communication line through the MVB communication unit using the information and data transmitted from the WTB communication unit.

상기와 같이, 종래의 철도차량 통신 네트워크 장치는, 차량간에 통신하는 WTB통신부와 차량내 기기간 통신하는 MVB통신부를 외부버스를 통하여 상호연결하고 있기 때문에, MVB통신부와 WTB통신부 마다 외부버스와 인터페이스하기 위한 전자회로를 설계 및 제작해야 하므로, 매우 번거롭고, 외부버스 추가로 인해 회로 고장의 발생도 잦은 문제가 있었다. As described above, the conventional railway vehicle communication network device interconnects the WTB communication unit communicating between the vehicles and the MVB communication unit communicating between the in-vehicle devices via an external bus, so that the MVB communication unit and the WTB communication unit interface with the external bus. The design and fabrication of electronic circuits is very cumbersome, and the addition of external buses often results in circuit failures.

또한, MVB통신부(보드)와 WTB통신부(보드)간에는 통신을 행하는데, 외부버스를 경유하여 연결되기 때문에, 데이터량이 증대할 경우에 데이터 전송의 지연이 발 생하여 전송속도가 저하되는 문제점이 있었다. In addition, the communication between the MVB communication unit (board) and the WTB communication unit (board) is performed via an external bus. Therefore, when the data volume increases, there is a problem in that a data transmission delay occurs and the transmission speed decreases. .

따라서, 본 발명은 상기와 같은 문제점을 감안하여 이루어진 것으로, 본 발명의 목적은 철도차량의 통신 네트워크 장치에 있어, 특히 MVB 통신부와 MTB 통신부간의 통신을 외부버스를 거치지 않도록, 더욱 간단하게 통합한 통신 네트워크 장치를 제공하는데 있다. Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a communication network device for a railway vehicle, in particular, a communication in which communication between the MVB communication unit and the MTB communication unit is more simply integrated so as not to pass through an external bus. It is to provide a network device.

상기 목적을 달성하기 위한, 본 발명의 MVB 통신부와 MTB 통신부를 내부 데이터 버스로 인터페이스한 철도차량 통신 네트워크 장치는, In order to achieve the above object, a railway vehicle communication network device in which the MVB communication unit and the MTB communication unit of the present invention interfaced with an internal data bus,

각 차량이 차량내 전자기기간 통신을 MVB통신선을 경유하여 수행하는 MVB 통신제어부와 차량간의 통신을 WTB통신선을 경유하여 수행하는 WTB 통신제어부를 구비하고, 상기 MTB통신제어부와 상기 WTB통신제어부가 통신접속되어 있는, 철도차량의 통신 네트워크장치에 있어서, Each vehicle includes an MVB communication control unit for performing in-vehicle electromagnetic period communication via an MVB communication line and a WTB communication control unit for performing communication between vehicles via a WTB communication line, wherein the MTB communication control unit and the WTB communication control unit communicate with each other. In the communication network device of a railway vehicle,

차량내 WTB통신방식 전자기기와 접속되어, 차량내 전자기기들로부터 데이터를 입력받아 내부 버퍼에 저장한 후 데이터 입력 플래그를 CPU모듈로 출력하고, 또 내부 버퍼로부터 데이터를 수신하여 내부 버퍼에 저장한 후 WTB 통신선으로 출력하는 WTB 통신제어부; Connected to the vehicle's WTB communication electronics, it receives data from the vehicle's electronic devices and stores it in the internal buffer, outputs the data input flag to the CPU module, and receives data from the internal buffer and stores it in the internal buffer. WTB communication control unit for outputting to the WTB communication line after;

차량간에 통신접속되는 MVB통신라인과 접속되어, 그로부터의 데이터를 입력받아 내부 버퍼에 저장한 후 데이터 입력 플래그를 CPU 모듈로 출력하고, 또 내부 버퍼로부터 데이터를 수신하여 내부 버퍼에 저장한 후 MVB 통신선으로 출력하는 MVB 통신 제어부; Connected to the MVB communication line, which is connected between vehicles, receives data from the MVB communication line, stores the data in the internal buffer, outputs the data input flag to the CPU module, receives data from the internal buffer, and stores the data in the internal buffer. MVB communication control unit for outputting;

상기 WTB 통신제어부 혹은 상기 MVB 통신제어부로 부터 데이터 입력 플래그를 받아, 해당 제어부의 내부 버퍼에서 새로 입력된 데이터 사이즈만큼의 데이터를 읽어들여 메모리부에 저장하고, 상기 MVB 통신제어부로 부터 입력된 데이터 중 이미 지정되어 WTB 통신으로 전송할 데이터를, WTB 통신제어부를 통해 출력이 될 수 있도록 제어를 수행하고, 또, WTB로 입력된 데이터 중 MVB로 전송되도록 지정된 데이터를 MVB 통신이 되도록 제어하는 CPU모듈; 및 Receives a data input flag from the WTB communication control unit or the MVB communication control unit, reads data as much as the newly input data size from the internal buffer of the control unit and stores the data in the memory unit, and among the data input from the MVB communication control unit. A CPU module configured to control data to be transmitted through the WTB communication control unit, and to designate the data to be transmitted to the MVB among the data input to the WTB to be MVB communication; And

상기 CPU모듈, 상기 WTB 통신제어부, 및 상기 MVB통신제어부와 내부버스를 경유하여 접속되며, 상기 CPU모듈의 명령에 따라, 상기 MVB 통신제어부 및 상기 WTB 통신제어부로부터 데이터를 저장한 후, 상기 WTB 통신제어부 및 상기 MVB 통신제어부로 출력하는 메모리부를 구비한다. The CPU module, the WTB communication control unit, and the MVB communication control unit are connected to each other via an internal bus. The WTB communication unit stores data from the MVB communication control unit and the WTB communication control unit according to a command of the CPU module. A control unit and a memory unit for outputting to the MVB communication control unit.

또한, 상기 내부버스는 내부버스 제어부에 의해 제어되는 것이 바람직하다.In addition, the internal bus is preferably controlled by the internal bus control unit.

이하, 본 발명의 MVB 통신부와 MTB 통신부를 통합한 철도차량 통신 네트워크 장치를 도면을 참조하여 자세히 설명한다. Hereinafter, a railway vehicle communication network device incorporating the MVB communication unit and the MTB communication unit of the present invention will be described in detail with reference to the accompanying drawings.

도 3 은 본 발명의 MVB 통신부와 MTB 통신부를 통합한 철도차량 통신 네트워크 장치를 개략적으로 나타낸 블럭도이다. 3 is a block diagram schematically illustrating a railway vehicle communication network device incorporating an MVB communication unit and an MTB communication unit of the present invention.

도 3 에 도시된, 본 발명의 철도차량 통신 네트워크 장치는, WTB 통신제어부, MVB 통신 제어부, 메인 CPU모듈, 메모리부 및 내부버스 제어부로 크게 구성된다. WTB 통신부와 MVB 통신부가 하나의 기판 회로(통합보드)에 구성되어 있으 며, 메모리부에 데이터를 저장한 후 내부버스 제어부의 제어하에 상호 데이터를 주고 받는다. The railway vehicle communication network device of the present invention shown in FIG. 3 is largely comprised of a WTB communication control unit, an MVB communication control unit, a main CPU module, a memory unit, and an internal bus control unit. The WTB communication unit and the MVB communication unit are configured in one board circuit (integrated board). After data is stored in the memory unit, data is exchanged with each other under the control of the internal bus controller.

상기 WTB 통신제어부는 WTB 통신 라인에서 입력되는 통신 신호를 받아 WTB 통신제어부 내부의 버퍼에 저장하고, 메인 CPU 모듈로 데이터 입력 정보 플래그를 전달한다. 또한, 메인 CPU 모듈의 명령에 의해 WTB 통신라인으로 전송할 데이터를 WTB 통신제어부 내부 버퍼에서 읽어 WTB 라인으로 전송하는 역할을 한다. The WTB communication control unit receives a communication signal input from the WTB communication line and stores it in a buffer inside the WTB communication control unit, and transmits a data input information flag to the main CPU module. Also, it reads data to be transmitted to the WTB communication line by the command of the main CPU module from the internal buffer of the WTB communication controller and transmits the data to the WTB line.

상기 MVB 통신제어부는 WTB 통신제어부와 위와 같은 방식으로 통신제어를 수행한다. The MVB communication controller performs communication control in the same manner as the WTB communication controller.

상기 CPU 모듈은 철도차량 통신 네트워크 장치의 전반적인 동작을 제어한다. 즉, WTB 통신제어부 혹은 MVB 통신제어부로 부터 데이터 입력 플래그를 받아 해당 제어부의 내부 버퍼에서 새로 입력된 데이터 사이즈만큼의 데이터를 읽어들여 메모리부에 저장하거나, MVB 통신제어부로 부터 입력된 데이터 중 이미 지정되어 WTB 통신으로 전송할 데이터를 WTB 통신제어부를 통해 출력이 될 수 있도록 제어를 수행한다. 반대의 경우, 즉 WTB로 입력된 데이터 중 MVB로 전송 되도록 지정된 데이터를 MVB 통신이 되도록 제어한다. The CPU module controls the overall operation of the railway vehicle communication network device. That is, it receives data input flag from WTB communication control unit or MVB communication control unit and reads the data of the newly input data size from the internal buffer of the control unit and stores it in the memory unit, or designates among the data input from MVB communication control unit. Control is performed so that the data to be transmitted through the WTB communication can be output through the WTB communication control unit. In the opposite case, that is, the data specified to be transmitted to the MVB among the data input to the WTB is controlled to be MVB communication.

상기 메모리부는 데이터를 저장하는 곳으로서, 용도에 따라 잠시 저장되는 버퍼의 역할을 하거나, 시스템의 동작 상태를 확인 가능하도록 플래그를 저장하는 등의 역할을 수행한다. The memory unit stores data, and serves as a buffer to be temporarily stored according to a purpose, or to store a flag so that an operation state of the system can be checked.

또, 상기 내부버스 제어부는 보드를 구성하는 각각의 모듈 간 데이터 흐름을 원할히 할 수 있도록 내부의 데이터 통로인 버스를 제어한다. In addition, the internal bus controller controls a bus, which is an internal data path, to smoothly flow data between modules constituting the board.

다음으로, 본 발명의 MVB 통신부와 MTB 통신부를 통합한 철도차량 통신 네트워크 장치의 동작을 자세히 설명한다. Next, the operation of the railway vehicle communication network device incorporating the MVB communication unit and the MTB communication unit of the present invention will be described in detail.

동작시, WTB 통신라인을 통해 전달된 데이터는 WTB 통신제어부(의 버퍼)에 저장되고, WTB 통신제어부는 메인 CPU모듈로 데이터 전달상태를 플래그 정보로 전달한다. 그러면, 메인 CPU 는 전달받은 플래그에 의해 WTB 통신제어부의 버퍼에 저장된 데이터를 판독하여 메모리부에 저장한다. 이때, 만약 전달된 데이터가 MVB 라인으로 다시 전송하도록 이미 정의된 데이터인 경우, 메인 CPU 모듈은 해당 데이터를 내부버스 제어부의 제어하에, 내부버스를 경유하여 메모리부로 전달하고, 해당 정보를 MVB 통신제어부의 내부버퍼에 전달한다. 그러면, 메인 CPU모듈은 WTB 통신제어부로부터 전달된 정보와 데이터를 이용하여 해당 데이터를 MVB 통신제어부를 통해 MVB 통신라인으로 전송할 수 있도록 제어한다. In operation, data transmitted through the WTB communication line is stored in the WTB communication control unit (buffer), and the WTB communication control unit transmits the data transfer state to the main CPU module as flag information. Then, the main CPU reads the data stored in the buffer of the WTB communication control unit according to the received flag and stores it in the memory unit. At this time, if the transferred data is already defined to be transmitted back to the MVB line, the main CPU module transfers the data to the memory unit via the internal bus under the control of the internal bus control unit, and transfers the corresponding information to the MVB communication control unit. Pass it to the internal buffer. Then, the main CPU module controls the data to be transmitted to the MVB communication line through the MVB communication control unit using the information and data transmitted from the WTB communication control unit.

상기와 같이, 본 발명의 철도차량 통신 네트워크 장치는, 차량간에 통신하는 WTB통신제어부와 차량내 기기간 통신하는 MVB통신제어부를, 내부버스 제어부에 의해 제어받는 내부버스를 경유하여 상호연결하고 있다. 즉, 외부버스를 제거하였다. 따라서, MVB통신제어부와 WTB통신제어부 마다 외부버스와 인터페이스하기 위한 전자회로를 설계 및 제작할 필요가 없어, 매우 간단하면서도, 외부버스 제거로 인해 회로 고장의 발생도 방지할 수 있다. As described above, the railway vehicle communication network device of the present invention interconnects the WTB communication control unit for communicating between vehicles and the MVB communication control unit for communicating between in-vehicle devices via an internal bus controlled by the internal bus control unit. In other words, the external bus was removed. Therefore, it is not necessary to design and manufacture an electronic circuit for interfacing with an external bus for each MVB communication control unit and WTB communication control unit, and it is very simple, and it is possible to prevent the occurrence of circuit failure due to the removal of the external bus.

또한, 본 발명의 철도차량 통신 네트워크 장치는, MVB통신제어부와 WTB통신제어부가 내부버스에 의해 통신이 바로 이루어지기 때문에, 고속 통신이 빨라져, 데이터량이 증대할 경우에도 전송속도를 유지할 수 있다. Further, in the railway vehicle communication network device of the present invention, since the MVB communication control unit and the WTB communication control unit communicate directly with the internal bus, high-speed communication can be increased, and the transmission speed can be maintained even when the data amount increases.

이상 설명한 바와 같이, 본 발명의 철도차량 통신 네트워크 장치는, 차량간에 통신하는 WTB통신제어부와 차량내 기기간 통신하는 MVB통신제어부를, 내부버스를 경유하여 상호연결하고 있기 때문에, 즉 종래의 외부버스를 제거하였기 때문에, MVB통신제어부와 WTB통신제어부 마다 외부버스와 인터페이스하기 위한 전자회로를 설계 및 제작할 필요가 없어, 외부버스 회로에 대한 회로제거에 의한 소요비용이 삭감되는 효과가 있으며, 외부버스 제거로 인해 회로 고장의 발생도 방지할 수 있는 효과가 있다. 또한, 내부버스에 의해, MVB통신제어부와 WTB통신제어부간의 통신이 바로 이루어지기 때문에, 고속 통신이 빨라져, 데이터 전송지연이 없이 실시간 통신이 가능하다. As described above, the railway vehicle communication network device of the present invention interconnects the WTB communication control unit that communicates between vehicles and the MVB communication control unit that communicates between in-vehicle devices via an internal bus, that is, a conventional external bus. This eliminates the need to design and manufacture electronic circuits for interfacing with external buses for each MVB communication control unit and WTB communication control unit, reducing the cost of circuit removal for external bus circuits. Therefore, there is an effect that can prevent the occurrence of circuit failure. In addition, since the communication between the MVB communication control unit and the WTB communication control unit is performed directly by the internal bus, high-speed communication is faster, and real-time communication is possible without delay in data transmission.

Claims (2)

각 차량이 차량내 전자기기간 통신을 MVB통신선을 경유하여 수행하는 MVB 통신제어부와 차량간의 통신을 WTB통신선을 경유하여 수행하는 WTB 통신제어부를 구비하고, 상기 MTB통신제어부와 상기 WTB통신제어부가 통신접속되어 있는, 철도차량의 통신 네트워크장치에 있어서, Each vehicle includes an MVB communication control unit for performing in-vehicle electromagnetic period communication via an MVB communication line and a WTB communication control unit for performing communication between vehicles via a WTB communication line, wherein the MTB communication control unit and the WTB communication control unit communicate with each other. In the communication network device of a railway vehicle, 차량내 전자기기와 WTB통신선으로 접속되어, 차량내 전자기기들로부터 데이터를 입력받아 내부 버퍼에 저장한 후 데이터 입력 플래그를 CPU모듈로 출력하고, 또 내부 버퍼로부터 데이터를 수신하여 내부 버퍼에 저장한 후 WTB 통신선으로 출력하는 WTB 통신제어부; Connected to the vehicle electronics and the WTB communication line, it receives data from the vehicle electronics and stores it in the internal buffer, outputs the data input flag to the CPU module, receives data from the internal buffer and stores it in the internal buffer. WTB communication control unit for outputting to the WTB communication line after; 차량간에 통신접속되는 MVB통신라인과 접속되어, 그로부터의 데이터를 입력받아 내부 버퍼에 저장한 후 데이터 입력 플래그를 CPU 모듈로 출력하고, 또 내부 버퍼로부터 데이터를 수신하여 내부 버퍼에 저장한 후 MVB 통신선으로 출력하는 MVB 통신 제어부; Connected to the MVB communication line, which is connected between vehicles, receives data from the MVB communication line, stores the data in the internal buffer, outputs the data input flag to the CPU module, receives data from the internal buffer, and stores the data in the internal buffer. MVB communication control unit for outputting; 상기 WTB 통신제어부 혹은 상기 MVB 통신제어부로 부터 데이터 입력 플래그를 받아, 해당 제어부의 내부 버퍼에서 새로 입력된 데이터 사이즈만큼의 데이터를 읽어들여 메모리부에 저장하고, 상기 MVB 통신제어부로 부터 입력된 데이터 중 이미 지정되어 WTB 통신으로 전송할 데이터를, WTB 통신제어부를 통해 출력이 될 수 있도록 제어를 수행하고, 또, WTB로 입력된 데이터 중 MVB로 전송되도록 지정된 데이터를 MVB 통신이 되도록 제어하는 CPU모듈; 및 Receives a data input flag from the WTB communication control unit or the MVB communication control unit, reads data as much as the newly input data size from the internal buffer of the control unit and stores the data in the memory unit, and among the data input from the MVB communication control unit. A CPU module configured to control data to be transmitted through the WTB communication control unit, and to designate the data to be transmitted to the MVB among the data input to the WTB to be MVB communication; And 상기 CPU모듈, 상기 WTB 통신제어부, 및 상기 MVB통신제어부와 내부버스를 경유하여 접속되며, 상기 CPU모듈의 명령에 따라, 상기 MVB 통신제어부 및 상기 WTB 통신제어부로부터 데이터를 저장한 후, 상기 WTB 통신제어부 및 상기 MVB 통신제어부로 출력하는 메모리부를 구비하는, 철도차량의 통신 네트워크장치.The CPU module, the WTB communication control unit, and the MVB communication control unit are connected to each other via an internal bus. The WTB communication unit stores data from the MVB communication control unit and the WTB communication control unit according to a command of the CPU module. And a memory unit for outputting to a control unit and the MVB communication control unit. 제 1 항에 있어서, The method of claim 1, 상기 내부버스는 내부버스 제어부에 의해 제어되는, 철도차량의 통신 네트워크장치.The internal bus is controlled by the internal bus control unit, the communication network device of a railway vehicle.
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