WO2010016460A1 - 通信システム - Google Patents
通信システム Download PDFInfo
- Publication number
- WO2010016460A1 WO2010016460A1 PCT/JP2009/063746 JP2009063746W WO2010016460A1 WO 2010016460 A1 WO2010016460 A1 WO 2010016460A1 JP 2009063746 W JP2009063746 W JP 2009063746W WO 2010016460 A1 WO2010016460 A1 WO 2010016460A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- controller
- communication
- communication line
- work machine
- vehicle body
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2095—Control of electric, electro-mechanical or mechanical equipment not otherwise provided for, e.g. ventilators, electro-driven fans
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/267—Diagnosing or detecting failure of vehicles
- E02F9/268—Diagnosing or detecting failure of vehicles with failure correction follow-up actions
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/60—Security, fault tolerance
- G08C2201/63—Redundant transmissions
Definitions
- the present invention relates to a communication system in which a communication network is formed by a communication line and a plurality of controllers, and more particularly to a communication system provided in a work machine such as a hydraulic excavator.
- Patent Document 1 discloses a conventional communication system in which a communication network is formed by a communication line and a plurality of controllers.
- a network communication line mounted on a ship or the like is shown.
- This network communication line includes two communication lines, a first controller connected to each of these communication lines, that is, a node A, and a communication line.
- the second controller directly connected to any one of the nodes, that is, the nodes E, B, and C is provided.
- a dedicated controller that is connected to the communication line and detects disconnection of the communication line, that is, a node D is also provided.
- Patent Document 1 The invention disclosed in Patent Document 1 described above is an invention related to a ship or the like, but in recent years, in a work machine such as a hydraulic excavator, a communication network is formed by a communication line and a plurality of controllers.
- a communication line connecting a plurality of controllers is damaged, such as disconnection, it has been conventionally performed to manually replace the communication line.
- the communication line becomes long due to the structure of the work machine, the exchange of the communication line becomes complicated and a lot of work time tends to be required.
- various work performed by the work machine must be stopped, and the work efficiency of the work machine decreases.
- the present invention has been made from the above-described actual state of the prior art, and its purpose is to enable a desired communication in a work machine without requiring manual replacement of the communication line when the communication line is broken or the like.
- An object of the present invention is to provide a communication system that can be made to operate.
- a communication system includes at least two communication lines, a first controller connected to each of the communication lines, and one of the communication lines.
- the first controller Communication that allows communication between the first controller and the second controller by bypassing communication via a communication line that is not damaged among the communication lines to which one controller is connected.
- any communication that is provided in a work machine has at least two of the first controllers, and connects the first controllers to each other.
- the second controller is connected to a portion of the communication line, and a portion of the communication line located between any one of the first controllers and the second controller is damaged, so that the portion between the corresponding first controller and the second controller When the communication becomes impossible, the communication line that connects the corresponding first controller and the other first controller is not damaged, and the communication is bypassed via the other first controller, Communication between the corresponding first controller and the second controller is made possible.
- communication between the first controller connected to each of at least two communication lines and the second controller connected to any one of the communication lines is performed while the work machine is being driven.
- the first controller and the second controller are performed without any trouble through a communication line connected to the first controller and the second controller.
- the corresponding first controller and another controller Communication between the first controller and the second controller can be performed by bypassing the communication line that does not cause damage and other controllers. That is, in the work machine, when the communication line is broken or the like, the communication between the corresponding first controller and the second controller that temporarily becomes impossible in a short time without requiring manual replacement of the communication line, Desired communication can be made possible.
- each of the first controller and the second controller are configured to communicate a control signal related to control of the work machine.
- the second controller when the second controller receives a control signal related to the control of the work machine from the first controller, the work machine according to the control signal. It is characterized by controlling a device provided in the system.
- the work machine is composed of a hydraulic excavator having a traveling body, a turning body, and a front work machine, and the at least two communication lines are used to drive the work machine.
- a communication system is provided in a work machine and has at least two first controllers, and a first communication line is connected to any one of the plurality of communication lines connected to the first controllers.
- a communication line located between one of the first controllers and the second controller is damaged, and communication between the corresponding first controller and the second controller becomes impossible
- the communication line that connects the corresponding first controller and the other first controller is not damaged, and the communication is bypassed via the other first controller, and the corresponding first controller and the second controller Because the communication between them is made possible, it is necessary to manually replace the communication line when the communication line breaks in the work machine.
- the desired communication can be made possible, and the work of the construction machine can be continued even when the communication line is broken or the like, and the work efficiency can be improved as compared with the conventional case. .
- FIG. 1 is a side view showing a hydraulic excavator cited as an example of a working machine provided with an embodiment of a communication system according to the present invention.
- the hydraulic excavator shown in FIG. 1 is attached to a traveling body 1, a swiveling body 2 disposed on the traveling body 1, and a swiveling body 2 so as to be pivotable in the vertical direction.
- the front work machine 3 to perform is provided.
- the front work machine 3 includes a boom 4 attached to the revolving body 2 so as to be rotatable in the vertical direction, an arm 5 attached to the tip of the boom 4 and rotatable in the vertical direction, and attached to the tip of the arm 5.
- a bucket 6 that is rotatable in the vertical direction.
- a driver's cab 7 provided with an operating device for driving the front working machine 3 and the like is provided at the front side position of the revolving structure 2, and a counterweight 8 for ensuring a weight balance is provided at the rear side position.
- FIG. 2 is a diagram showing a main configuration of the communication system according to the present embodiment.
- the communication system according to the present embodiment includes at least two communication lines, for example, a drive system communication line 10 that transmits a drive system control signal, and an information system that transmits an information system control signal.
- a communication line 11 is provided.
- a first controller connected to each of the drive system communication line 10 and the information system communication line 11, and a second controller connected to any one of the communication lines 10 and 11, for example, the drive system communication line 10.
- a communication network is formed by the drive system communication line 10, the information system communication line 11, the first controller, and the second controller.
- the present embodiment has at least two of the first controllers described above. These two first controllers are, for example, the vehicle body controller 12 related to the drive control of the hydraulic excavator, and the cab 7 shown in FIG. And the monitor controller 13 related to the display processing of the monitor arranged in the.
- the vehicle body controller 12 is connected to the drive system communication line 10 via a wiring 15, and is connected to the information system communication line 11 via a wiring 16.
- the monitor controller 13 is connected to the drive system communication line 10 via a wiring 17 and is connected to the information system communication line 11 via a wiring 18.
- the vehicle body controller 12 and the monitor controller 13 can communicate with both the drive system communication line 10 and the information system communication line 11, and are both disposed in the cab 7 shown in FIG. 1, for example. .
- the second controller described above includes, for example, an engine controller 14 that controls an engine that is one of devices provided in the hydraulic excavator. As shown in FIG. 2, a vehicle body controller 12 and a monitor controller 13 that constitute the first controller. Are connected to one of the communication lines 10 and 11, which are connected to each other, for example, to the drive system communication line 10 via a wiring 19. For example, the engine controller 14 is disposed in a machine room provided between the cab 7 and the counterweight 8.
- an engine target speed signal is transmitted from the vehicle body controller 12 to the engine controller 14 as a transmitted control signal.
- an engine actual speed signal is transmitted from the engine controller 14 to the vehicle body controller 12 as a transmitted control signal.
- FIG. 3 is a flowchart showing a processing procedure in each of the vehicle body controller, the monitor controller, and the engine controller provided in the present embodiment.
- the communication system includes, for example, a vehicle body controller that is a first controller connected to the drive-system communication line 10 and the information-system communication line 11 that are performed during excavation work by driving the front work machine 3. Communication between the vehicle controller 12 and the engine controller 14 as the second controller is performed without any trouble via the drive system communication line 10 to which the vehicle body controller 12 and the engine controller 14 are connected.
- the determination made by the vehicle body controller 12 as to whether or not the data of the engine controller 14 has been received from the drive system communication line 10 is YES (procedure S 1).
- the data is transmitted to the drive system communication line 10 (procedure S2), and the engine controller 14 receives the data of the vehicle body controller 12 from the drive system communication line 10 via the wiring 19 (procedure S3).
- the front work machine 3 is given to the portion of the drive system communication line 10 located between the vehicle body controller 12 and the engine controller 14 in a state of deterioration over time.
- a breakage point A such as cutting occurs due to a large vibration caused by work or the like, and communication between the vehicle body controller 12 and the engine controller 14 is disabled, the vehicle body cotton roller 12 and the first controller are configured.
- the information system communication line 11 that is a communication line that does not cause damage to the controller, that is, the monitor controller 13 and the monitor controller 13 that is another controller. Communication becomes possible.
- the communication system in a hydraulic excavator, for example, when the drive system communication line 10 is broken or the like is broken, the drive system communication line 10 is not manually replaced for a short time. It is possible to enable desired communication between the vehicle body controller 12 and the engine controller 14 that have temporarily lost communication. Therefore, even when the drive system communication line 10 is broken or the like, the operation of the hydraulic excavator can be continued and the work efficiency can be improved.
- the breakage of the drive system communication line 10 located between the vehicle body controller 12 and the engine controller 14 has been described as an example.
- the drive system communication line located between the monitor controller 13 and the engine controller 14 has been described. Even when the part 10 is damaged, the data can be transmitted to the engine controller 14 from the monitor controller 13 by bypassing the information system communication line 11, the vehicle body controller 12, and the drive system communication line 10 as described above. it can.
- the two controllers, the vehicle body controller 12 and the monitor controller 13, are provided as the first controllers connected to the drive system communication line 10 and the information system communication line 11, respectively.
- Three or more first controllers connected to each of the system communication lines 11 may be provided.
- the engine controller 14 is provided as the second controller.
- the second controller for example, an information controller that performs information processing is provided in addition to the engine controller 14, and the information controller is connected to the information communication line 11. It may be.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Operation Control Of Excavators (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
2 旋回体
3 フロント作業機
4 ブーム
5 アーム
6 バケット
7 運転室
8 カウンタウエイト
10 駆動系通信線
11 情報系通信線
12 車体コントローラ(第1コントローラ)
13 モニタコントローラ(第1コントローラ)
14 エンジンコントローラ(第2コントローラ)
15 配線
16 配線
17 配線
18 配線
19 配線
A 破損箇所
Claims (4)
- 少なくとも2つの通信線と、これらの通信線のそれぞれに接続される第1コントローラと、上記通信線のうちのいずれか1つに接続される第2コントローラとによって通信ネットワークが形成され、上記通信線のいずれかの部分に破損が生じて上記第1コントローラと上記第2コントローラとの間の通信が不能となったときに、上記第1コントローラが接続される上記通信線のうちの破損を生じていない通信線を介して通信を迂回させて、上記第1コントローラと上記第2コントローラとの間の通信を可能にさせるようにした通信システムにおいて、
作業機械に備えられ、
上記第1コントローラを少なくとも2つ有し、これらの第1コントローラを互いに接続するいずれかの通信線の部分に上記第2コントローラを接続し、
上記第1コントローラのいずれかと上記第2コントローラとの間に位置する通信線の部分に破損が生じて該当する第1コントローラと上記第2コントローラとの間の通信が不能となったときに、上記該当する第1コントローラと他の第1コントローラとを接続する破損を生じていない通信線、及び上記他の第1コントローラを介して通信を迂回させて、上記該当する第1コントローラと上記第2コントローラとの間の通信を可能にさせるようにしたことを特徴とする通信システム。 - 上記請求項1記載の通信システムにおいて、
上記第1コントローラのそれぞれ、及び上記第2コントローラは、上記作業機械の制御に係る制御信号を通信するものから成ることを特徴とする通信システム。 - 上記請求項1記載の通信システムにおいて、
上記第2コントローラは、上記第1コントローラからの上記作業機械の制御に係る制御信号を受信した際に、その制御信号に応じて上記作業機械に備えられる装置を制御することを特徴とする通信システム。 - 上記請求項1記載の通信システムにおいて、
上記作業機械が、走行体、旋回体、及びフロント作業機を有する油圧ショベルから成り、
上記少なくとも2つの通信線が、上記作業機械の駆動に関係する駆動系通信線と、上記作業機械に備えられるモニタに関係する情報系通信線とを含み、
上記少なくとも2つの第1コントローラが、車体コントローラとモニタコントローラとを含み、上記第2コントローラがエンジンコントローラから成ることを特徴とする通信システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09804943.0A EP2312867A4 (en) | 2008-08-04 | 2009-08-03 | COMMUNICATION SYSTEM |
CN2009801308746A CN102113342A (zh) | 2008-08-04 | 2009-08-03 | 通信系统 |
US13/057,226 US20110128116A1 (en) | 2008-08-04 | 2009-08-03 | Communication System |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-200801 | 2008-08-04 | ||
JP2008200801A JP2010041305A (ja) | 2008-08-04 | 2008-08-04 | 通信システム |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010016460A1 true WO2010016460A1 (ja) | 2010-02-11 |
Family
ID=41663677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/063746 WO2010016460A1 (ja) | 2008-08-04 | 2009-08-03 | 通信システム |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110128116A1 (ja) |
EP (1) | EP2312867A4 (ja) |
JP (1) | JP2010041305A (ja) |
KR (1) | KR20110051224A (ja) |
CN (1) | CN102113342A (ja) |
WO (1) | WO2010016460A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000354080A (ja) * | 1999-04-09 | 2000-12-19 | Komatsu Ltd | 電子装置間の通信制御方法およびこれを用いた建設機械、建設機械の電子回路 |
JP3630418B2 (ja) | 2002-09-11 | 2005-03-16 | 三菱電機株式会社 | ネットワーク通信装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4805086A (en) * | 1987-04-24 | 1989-02-14 | Laser Alignment, Inc. | Apparatus and method for controlling a hydraulic excavator |
-
2008
- 2008-08-04 JP JP2008200801A patent/JP2010041305A/ja active Pending
-
2009
- 2009-08-03 KR KR1020117005025A patent/KR20110051224A/ko not_active Application Discontinuation
- 2009-08-03 US US13/057,226 patent/US20110128116A1/en not_active Abandoned
- 2009-08-03 EP EP09804943.0A patent/EP2312867A4/en not_active Withdrawn
- 2009-08-03 WO PCT/JP2009/063746 patent/WO2010016460A1/ja active Application Filing
- 2009-08-03 CN CN2009801308746A patent/CN102113342A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000354080A (ja) * | 1999-04-09 | 2000-12-19 | Komatsu Ltd | 電子装置間の通信制御方法およびこれを用いた建設機械、建設機械の電子回路 |
JP3630418B2 (ja) | 2002-09-11 | 2005-03-16 | 三菱電機株式会社 | ネットワーク通信装置 |
Non-Patent Citations (1)
Title |
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See also references of EP2312867A4 |
Also Published As
Publication number | Publication date |
---|---|
KR20110051224A (ko) | 2011-05-17 |
CN102113342A (zh) | 2011-06-29 |
EP2312867A1 (en) | 2011-04-20 |
EP2312867A4 (en) | 2013-05-15 |
US20110128116A1 (en) | 2011-06-02 |
JP2010041305A (ja) | 2010-02-18 |
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