WO2013061451A1 - プログラマブルロジックコントローラ - Google Patents
プログラマブルロジックコントローラ Download PDFInfo
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- WO2013061451A1 WO2013061451A1 PCT/JP2011/074851 JP2011074851W WO2013061451A1 WO 2013061451 A1 WO2013061451 A1 WO 2013061451A1 JP 2011074851 W JP2011074851 W JP 2011074851W WO 2013061451 A1 WO2013061451 A1 WO 2013061451A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15038—Internet, tcp-ip, web server see under S05B219-40
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/677—Multiple interfaces, e.g. multihomed nodes
Definitions
- the present invention relates to a programmable logic controller used by being connected to a network.
- communication is performed by regarding a plurality of networks as one network using a virtual IP address.
- a routing function is installed in the programmable logic controller to perform communication to different networks.
- Network devices of a type different from Ethernet are interconnected using a heterogeneous network gateway.
- a heterogeneous network gateway For example, by using the routing function disclosed in Patent Document 2, it is possible to communicate with a communication device connected to a network having a different real IP address and network address.
- the programmable logic controller and the communication device connected to different types of networks it is necessary to construct the heterogeneous network gateway system disclosed in Patent Document 3.
- the present invention has been made in view of the above, and in a programmable logic controller and a communication device connected to different types of networks, a programmable logic that enables communication using an Ethernet packet without providing a heterogeneous network gateway system.
- the purpose is to obtain a controller.
- the present invention is a programmable logic controller including a CPU unit, and the CPU unit has a real IP address and a pseudo IP address different from the real IP address,
- the communication device belonging to the network communicating with the first communication protocol is used to transmit / receive data using the real IP address, and the communication device belonging to the network communicating with the second communication protocol different from the first communication protocol and the pseudo IP address
- a programmable logic controller characterized by using it to send and receive data.
- the programmable logic controller according to the present invention has an effect of enabling communication with an Ethernet packet without providing a heterogeneous network gateway system in a programmable logic controller and a communication device connected to different types of networks.
- FIG. 1 is a diagram illustrating an example of a network system including a programmable logic controller according to the first embodiment of the present invention.
- FIG. 2 is a block diagram illustrating a schematic configuration of a CPU unit included in the programmable logic controller.
- FIG. 3 is a flowchart showing a processing procedure when the CPU unit receives data from the LAN interface.
- FIG. 4 is a flowchart showing a processing procedure when the CPU unit receives data from the communication unit via the internal bus.
- FIG. 5 is a flowchart showing a processing procedure when data is transmitted from the CPU unit via the Ethernet or via a network of a different type from the Ethernet.
- FIG. 1 is a diagram illustrating an example of a network system including a programmable logic controller according to the first embodiment of the present invention.
- FIG. 2 is a block diagram illustrating a schematic configuration of a CPU unit included in the programmable logic controller.
- FIG. 3 is a flowchart showing a processing procedure when the CPU unit receives
- FIG. 6 is a diagram for explaining an example of data transmission / reception in a programmable logic controller connected via another network in the network system shown in FIG.
- FIG. 7 is a diagram for explaining another example of data transmission / reception in a programmable logic controller connected via another network in the network system shown in FIG.
- FIG. 8 is a diagram for explaining another example of data transmission / reception in a programmable logic controller connected via another network in the network system shown in FIG.
- FIG. 1 is a diagram illustrating an example of a network system including a programmable logic controller according to the first embodiment of the present invention.
- This network system is configured by connecting personal computers (hereinafter referred to as personal computers or PCs) 10, 16, and 18 and programmable logic controllers 11, 14, and 15.
- PCs personal computers
- PCs personal computers
- programmable logic controllers 11, 14, and 15 programmable logic controllers 11, 14, and 15.
- the personal computer 10 and the programmable logic controller 11 are connected to a first network 12 via Ethernet.
- the first network 12 is a network that performs communication using Ethernet as a first communication protocol.
- the programmable logic controller 11 is also connected to a second network 13 of a type different from Ethernet.
- the second network 13 is a network that performs communication using a protocol other than Ethernet as the second communication protocol.
- a programmable logic controller 14, a programmable logic controller 15, and a personal computer 16 are connected to the second network 13.
- the programmable logic controller 14 is connected to the third network 17 via Ethernet, and is connected to the personal computer 18 via the third network 17.
- the third network 17 is a network that performs communication using Ethernet as a first communication protocol.
- the programmable logic controller 11 includes a CPU unit 19 having a built-in Ethernet port and a communication unit 20.
- the programmable logic controller 11 includes a unit (not shown) other than the CPU unit 19 and the communication unit 20.
- the CPU unit 19 includes an interface that can be connected to a network via Ethernet.
- the CPU unit 19 has functions such as an FTP client and an FTP server, and is capable of data communication with the personal computer 10 connected to the first network 12 via Ethernet. That is, the personal computer 10 functions as an FTP server, an FTP client, or the like.
- the communication unit 20 is connected to a network 13 different from Ethernet.
- the communication unit 20 has a cyclic transmission function, and exchanges data with the programmable logic controller 14, the programmable logic controller 15, the personal computer 16, and the like.
- the programmable logic controller 14 includes a CPU unit 19 and a communication unit 20 in the same manner as the programmable logic controller 11.
- the personal computer 18 connected to the CPU unit 19 of the programmable logic controller 14 functions as an FTP server, an FTP client, or the like.
- the programmable logic controller 14 also includes units (not shown) other than the CPU unit 19 and the communication unit 20, as with the programmable logic controller 11.
- the programmable logic controller 15 includes a communication unit 20 in the same manner as the programmable logic controllers 11 and 14. Unlike the programmable logic controllers 11 and 14, the programmable logic controller 15 includes a CPU unit 30 that does not incorporate an Ethernet port.
- the programmable logic controller 15 also includes units (not shown) other than the CPU unit 30 and the communication unit 20, similarly to the programmable logic controllers 11 and 14.
- FIG. 2 is a block diagram illustrating a schematic configuration of the CPU unit 19 included in the programmable logic controllers 11 and 14.
- the CPU unit 19 includes a LAN interface (hereinafter also referred to as a LAN I / F) (first port) 21, a LAN driver 22, an Ethernet module 23, an Ethernet driver 24, and a packet buffer 25 that can be connected to the Ethernet in order from the bottom. .
- a LAN interface hereinafter also referred to as a LAN I / F
- first port a LAN driver 22
- Ethernet module 23 an Ethernet driver 24
- packet buffer 25 that can be connected to the Ethernet in order from the bottom.
- the CPU unit 19 can be connected to an internal bus (second port) 26 and has a bus driver 27 for the internal bus 26 that transfers data between the CPU unit 19 and other units. Further, in addition to the Ethernet driver 24, an FTP server / client 28 and a file system 29 are provided in the upper layer of the Ethernet module 23.
- the Ethernet module 23 in the CPU unit 19 determines the transfer destination of the data based on the IP address of the received data. That is, when data having an IP address other than that addressed to the CPU is received, the data is transferred to the Ethernet driver 24.
- the FTP server / client 28 in the CPU unit 19 receives data transmitted from an IP address (for example, 192.168.4.1) addressed to its own CPU, and a pseudo IP address (for example, 192.168.5.1).
- IP address for example, 192.168.4.1
- pseudo IP address for example, 192.168.5.1
- the data transmitted from can be generated.
- the generated data is distributed by the Ethernet module 23.
- FIG. 3 is a flowchart showing a processing procedure when the CPU unit 19 receives data from the LAN interface 21.
- data received from the LAN interface 21 is transferred to the LAN driver 22 in step S111.
- the received data is transferred from the LAN driver 22 to the Ethernet module 23.
- the Ethernet module 23 confirms the IP address of the destination attached to the header of the received data, and the IP address addressed to its own CPU (for example, an actual IP address such as 192.168.4.1, 192 .. 168.5.1 etc.) or other IP addresses.
- the Ethernet module 23 proceeds to step S114 and transfers the received data to the FTP server / client 28 in the CPU.
- step S115 the FTP server / client 28 transfers the received data to the file system in its own CPU.
- the Ethernet module 23 proceeds from step S113 to step S116 and transfers the received data to the Ethernet driver 24 in the CPU unit 19.
- step S117 the Ethernet driver 24 transfers the received data to the packet buffer 25 in the CPU unit 19.
- step S118 the packet buffer 25 encapsulates the received data so as to correspond to a protocol of a network different from Ethernet in order to transmit data through a network of a different type from Ethernet.
- step S119 the encapsulated data is transferred from the internal bus 26 to the communication unit 20.
- FIG. 4 is a flowchart showing a processing procedure when the CPU unit 19 receives data from the communication unit 20 via the internal bus 26.
- step S 121 the encapsulated packet is received from the communication unit 20 via the internal bus 26.
- step S122 the received data is transferred to the bus driver 27.
- step S123 the received data is transferred to the Ethernet module, and the encapsulation is released.
- step S124 the Ethernet module 23 checks the IP address of the destination attached to the header of the received data, and receives the received data depending on whether it is the IP address data addressed to its own CPU or other IP address. Sort out.
- the Ethernet module 23 proceeds to step S125 and transfers the received data to the FTP server / client 28 in the own CPU.
- step S126 the FTP server / client 28 transfers the received data to the file system 29 in its own CPU.
- the Ethernet module 23 proceeds from step S124 to step S127, and transfers the received data to the LAN driver 22.
- step S128 the received data is transferred from the LAN driver 22 to the LAN I / F 21.
- FIG. 5 is a flowchart showing a processing procedure when data is transmitted from the CPU unit 19 via the Ethernet or via a network of a different type from the Ethernet.
- step S131 data is transferred from the file system 29 to the FTP server / client 28.
- step S132 data is transferred from the FTP server / client 28 to the Ethernet module 23.
- step S133 the Ethernet module 23 determines the transmission data depending on whether the network address of the IP address that is the destination of the transmission data is a pseudo IP address or a non-pseudo IP address (real IP address). Distribute.
- step S134 the Ethernet module 23 transmits data via the Ethernet (for example, the first network 12 and the third network 17). Therefore, the transmission data is transferred to the LAN driver 22.
- step S135 the transmission data is transmitted to the LAN I / F 21.
- step S133 the process proceeds from step S133 to step S136, and the Ethernet module 23 transmits data on a different network (for example, the second network 13) different from the Ethernet. Encapsulate transmission data.
- step S137 the Ethernet module 23 transfers the transmission data to the bus driver 27.
- step S138 the transmission data is transferred from the bus driver 27 to the internal bus 26, and the transmission data is transferred from the internal bus 26 to the communication unit 20.
- FIG. 6 is a diagram for explaining an example of data transmission / reception in a programmable logic controller connected via another network in the network system shown in FIG. Since the CPU unit 19 of the programmable logic controller 14 has two IP addresses, that is, a real IP address and a pseudo IP address, data transmission / reception via the second network 13 of a type different from Ethernet, and Ethernet (third network 17) ) Can be sent and received via.
- data communication is performed from the internal bus 26 of the CPU unit 19 and the communication unit 20 (see also FIG. 2) to the CPU unit 30 of the programmable logic controller 15 via the second network 13 of a type different from Ethernet. ing.
- the data transmitted from the internal bus 26 of the CPU unit 19 and the communication unit 20 is encapsulated as described above and transmitted as an Ethernet packet.
- data communication is performed from the Ethernet port of the CPU unit 19 to the personal computer 18 via the third network 17 that is an Ethernet.
- the CPU unit 19 can process both data communication via the LAN interface 21 connectable to the Ethernet and data communication via the internal bus 26 connectable to a network different from the Ethernet.
- FIG. 7 is a diagram for explaining another example of data transmission / reception in a programmable logic controller connected via another network in the network system shown in FIG. As shown in FIG. 7, when data transmission is designated from the personal computer 10 to the CPU unit 19 of the programmable logic controller 14 connected through a different network via the programmable logic controller 14, the target device ( Communication is possible simply by setting the IP address of the programmable logic controller 14).
- FIG. 8 is a diagram for explaining another example of data transmission / reception in a programmable logic controller connected via another network in the network system shown in FIG. As shown in FIG. 8, even with a CPU unit 30 that does not have an Ethernet port, having a pseudo IP address enables data communication using an Ethernet packet with an IP address via different types of networks.
- the programmable logic controller and the communication device connected to different types of networks can communicate with the Ethernet packet without providing the heterogeneous network gateway system. Become.
- the programmable logic controller according to the present invention is useful for a network system in which the programmable logic controller is connected via different types of networks, and in particular, the programmable logic controller via a network different from Ethernet and the Ethernet. Suitable for network systems to which the programmable logic controller is connected via different types of networks, and in particular, the programmable logic controller via a network different from Ethernet and the Ethernet. Suitable for network systems to which the programmable logic controller is connected via different types of networks, and in particular, the programmable logic controller via a network different from Ethernet and the Ethernet. Suitable for network systems to which
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Abstract
Description
図1は、本発明の実施の形態1にかかるプログラマブルロジックコントローラを含むネットワークシステムの一例を示す図である。このネットワークシステムは、パーソナルコンピュータ(以下、パソコンまたはPCという)10,16,18と、プログラマブルロジックコントローラ11,14,15が接続されて構成されている。
11,14,15 プログラマブルロジックコントローラ
12 第一ネットワーク
13 第二ネットワーク
17 第三ネットワーク
19 CPUユニット
20 通信ユニット
21 LANインタフェース(LAN I/F)(第1ポート)
22 LANドライバ
23 Ethernetモジュール
24 Ethernetドライバ
25 パケットバッファ
26 内部バス(第2ポート)
27 バス用ドライバ
28 FTPサーバ/クライアント
29 ファイルシステム
30 CPUユニット
Claims (5)
- CPUユニットを備えるプログラマブルロジックコントローラであって、
前記CPUユニットは、実IPアドレスと、前記実IPアドレスと異なる疑似IPアドレスとを持ち、第1の通信プロトコルで通信するネットワークに属する通信機器と前記実IPアドレスを用いてデータを送受信し、前記第1の通信プロトコルと異なる第2の通信プロトコルで通信するネットワークに属する通信機器と前記疑似IPアドレスを用いてデータを送受信することを特徴とするプログラマブルロジックコントローラ。 - 前記CPUユニットは、
前記実IPアドレスでデータを送受信する第1ポートと、
前記疑似IPアドレスでデータを送受信する第2ポートと、を有し、
前記第1の通信プロトコルはEthernetであり、前記第2の通信プロトコルは、Ethernet以外の通信プロトコルであることを特徴とする請求項1に記載のプログラマブルロジックコントローラ。 - 前記CPUユニットは、
前記CPUユニットから送信される送信データの宛先となるIPアドレスのネットワークアドレスが、前記疑似IPアドレスのものである場合に、前記送信データのカプセル化を行い、前記第2ポートから送信することを特徴とする請求項2に記載のプログラマブルロジックコントローラ。 - 前記CPUユニットは、
ファイルシステムをさらに有し、
前記第1ポートから受信した受信データの宛先が前記CPUユニットのIPアドレスである場合には、前記ファイルシステムに前記受信データを転送し、
前記第1ポートから受信した受信データの宛先が前記CPUユニット以外のIPアドレスである場合には、前記第2ポートから前記受信データを送信することを特徴とする請求項2または3に記載のプログラマブルロジックコントローラ。 - 前記CPUユニットは、
ファイルシステムをさらに有し、
前記第2ポートから受信した受信データの宛先が前記CPUユニットのIPアドレスである場合には、前記ファイルシステムに前記受信データを転送し、
前記第2ポートから受信した受信データの宛先が前記CPUユニット以外のIPアドレスである場合には、前記第1ポートから前記受信データを送信することを特徴とする請求項2~4のいずれか1つに記載のプログラマブルロジックコントローラ。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011105766.0T DE112011105766B4 (de) | 2011-10-27 | 2011-10-27 | Programmlogik-Steuervorrichtung |
JP2012506269A JP5084972B1 (ja) | 2011-10-27 | 2011-10-27 | プログラマブルロジックコントローラおよびネットワークシステム |
US13/518,762 US8880644B2 (en) | 2011-10-27 | 2011-10-27 | Programmable logic controller |
PCT/JP2011/074851 WO2013061451A1 (ja) | 2011-10-27 | 2011-10-27 | プログラマブルロジックコントローラ |
CN201180005545.6A CN103190119B (zh) | 2011-10-27 | 2011-10-27 | 可编程逻辑控制器 |
KR1020127017278A KR101358527B1 (ko) | 2011-10-27 | 2011-10-27 | 프로그래머블 로직 컨트롤러 |
TW101116160A TWI481240B (zh) | 2011-10-27 | 2012-05-07 | 可程式邏輯控制器 |
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PCT/JP2011/074851 WO2013061451A1 (ja) | 2011-10-27 | 2011-10-27 | プログラマブルロジックコントローラ |
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WO2013061451A1 true WO2013061451A1 (ja) | 2013-05-02 |
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PCT/JP2011/074851 WO2013061451A1 (ja) | 2011-10-27 | 2011-10-27 | プログラマブルロジックコントローラ |
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US (1) | US8880644B2 (ja) |
JP (1) | JP5084972B1 (ja) |
KR (1) | KR101358527B1 (ja) |
CN (1) | CN103190119B (ja) |
DE (1) | DE112011105766B4 (ja) |
TW (1) | TWI481240B (ja) |
WO (1) | WO2013061451A1 (ja) |
Cited By (1)
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WO2014188487A1 (ja) * | 2013-05-20 | 2014-11-27 | 三菱電機株式会社 | 列車情報管理装置および列車情報管理方法 |
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JP7131455B2 (ja) * | 2019-03-27 | 2022-09-06 | オムロン株式会社 | ユニット、ユニットの制御方法、および、ユニットの制御プログラム |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005197936A (ja) * | 2004-01-06 | 2005-07-21 | Kddi Corp | 通信システム、登録装置及び通信装置 |
JP2011155589A (ja) * | 2010-01-28 | 2011-08-11 | Hitachi Ltd | ハイブリッド通信端末およびプログラム |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2859270B2 (ja) | 1987-06-11 | 1999-02-17 | 旭光学工業株式会社 | カメラの視線方向検出装置 |
JPS6468144A (en) | 1987-09-09 | 1989-03-14 | Fujitsu Ltd | Squelch system for data receiver |
JP2621357B2 (ja) | 1988-05-27 | 1997-06-18 | 株式会社デンソー | 半導体歪検出器 |
JPH0268988A (ja) | 1988-09-02 | 1990-03-08 | Nec Corp | 表面実装プリント配線板 |
JPH027A (ja) | 1989-01-04 | 1990-01-05 | Fuji Photo Film Co Ltd | カメラの測距装置 |
US20030229809A1 (en) | 1999-04-15 | 2003-12-11 | Asaf Wexler | Transparent proxy server |
US20030084219A1 (en) | 2001-10-26 | 2003-05-01 | Maxxan Systems, Inc. | System, apparatus and method for address forwarding for a computer network |
US7417950B2 (en) * | 2003-02-03 | 2008-08-26 | Ciena Corporation | Method and apparatus for performing data flow ingress/egress admission control in a provider network |
JP4172490B2 (ja) * | 2006-03-15 | 2008-10-29 | オムロン株式会社 | プログラマブルコントローラ |
JP4803116B2 (ja) * | 2007-05-31 | 2011-10-26 | 富士ゼロックス株式会社 | 仮想ネットワーク接続装置及びプログラム |
JP5391813B2 (ja) * | 2009-04-30 | 2014-01-15 | 日本電気株式会社 | アドレス変換システム、アドレス変換方法、アドレス変換プログラム |
US8594100B2 (en) * | 2010-03-31 | 2013-11-26 | International Business Machines Corporation | Data frame forwarding using a distributed virtual bridge |
US8619796B2 (en) * | 2010-04-22 | 2013-12-31 | International Business Machines Corporation | Forwarding data frames with a distributed fiber channel forwarder |
US8644139B2 (en) * | 2010-04-26 | 2014-02-04 | International Business Machines Corporation | Priority based flow control within a virtual distributed bridge environment |
-
2011
- 2011-10-27 DE DE112011105766.0T patent/DE112011105766B4/de active Active
- 2011-10-27 JP JP2012506269A patent/JP5084972B1/ja not_active Expired - Fee Related
- 2011-10-27 KR KR1020127017278A patent/KR101358527B1/ko not_active IP Right Cessation
- 2011-10-27 WO PCT/JP2011/074851 patent/WO2013061451A1/ja active Application Filing
- 2011-10-27 CN CN201180005545.6A patent/CN103190119B/zh not_active Expired - Fee Related
- 2011-10-27 US US13/518,762 patent/US8880644B2/en not_active Expired - Fee Related
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005197936A (ja) * | 2004-01-06 | 2005-07-21 | Kddi Corp | 通信システム、登録装置及び通信装置 |
JP2011155589A (ja) * | 2010-01-28 | 2011-08-11 | Hitachi Ltd | ハイブリッド通信端末およびプログラム |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014188487A1 (ja) * | 2013-05-20 | 2014-11-27 | 三菱電機株式会社 | 列車情報管理装置および列車情報管理方法 |
JP5795135B2 (ja) * | 2013-05-20 | 2015-10-14 | 三菱電機株式会社 | 列車情報管理装置 |
US9787542B2 (en) | 2013-05-20 | 2017-10-10 | Mitsubishi Electric Corporation | Train-information management device and train-information management method |
Also Published As
Publication number | Publication date |
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CN103190119A (zh) | 2013-07-03 |
JP5084972B1 (ja) | 2012-11-28 |
JPWO2013061451A1 (ja) | 2015-04-02 |
CN103190119B (zh) | 2016-11-09 |
TW201318386A (zh) | 2013-05-01 |
US8880644B2 (en) | 2014-11-04 |
US20130110973A1 (en) | 2013-05-02 |
KR101358527B1 (ko) | 2014-02-05 |
DE112011105766T5 (de) | 2014-11-06 |
TWI481240B (zh) | 2015-04-11 |
DE112011105766B4 (de) | 2021-11-11 |
KR20130056850A (ko) | 2013-05-30 |
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