[특허]Apparatus and method for controlling a hydraulic excavator

[미국특허] Apparatus and method for controlling a hydraulic excavator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02F-003/00
출원번호	US-0042449 (1987-04-24)
발명자 / 주소	Nielsen Edward G. (Grand Rapids MI) Steenwyk Timothy E. (Grand Rapids MI)
출원인 / 주소	Laser Alignment, Inc. (Grand Rapids MI 02)
인용정보	피인용 횟수 : 44 인용 특허 : 12

초록 ▼

A control for an excavator controls the position of the bucket cutting edge to a desired depth accurately by a calibrating laser receiver mounted on the excavator stick member and passed through a stationary laser plane wherever the stick is moved into or out of a trench. Linear position encoders monitor the length that the actuating cylinders are extended and lookup tables convert the encoder outputs to angle representations for determining the positions of the laser receiver and the cutting edge. Other lookup tables are utilized to avoid time-consuming iterative calculation procedures to provide real-time digital process solutions of trigonometric functions. The apparatus includes a unique laser receiver comprising a plurality of linearly aligned photo receptors with associated circuitry for producing an output representative of the receptor illuminated or, if a group of receptors are illuminated, the centermost receptor illuminated.

대표청구항 ▼

A system for an excavator for use with a laser emitting a planar laser beam at a predetermined elevation, said excavator having a fame, cutting means, connecting means for connecting said cutting means to said frame and actuation means for moving said cutting means with respect to a point on said frame, said connecting means including a stick member movable with respect to said frame and a bucket movable with respect to said stick member, said system comprising: laser receiving means on said stick member for producing a signal when contracted by the laser beam; laser receiving means relative position determining means for producing a first representation proportional to the distance between said laser receiving means when contacted by the laser beam and said point; means for storing said first representation; cutting means relative position determining means for determining the distance between said cutting means and said point at different positions of said bucket relative to said stick member and producing a second representation proportional to the distance between said cutting means and said point; and cutting means absolute position determining means for combining said first and second representations to produce a third representation proportional to the distance of said cutting means from the laser plane.

이 특허에 인용된 특허 (12) 인용/피인용 타임라인 분석

Teach ; Ted L., Automatic control of backhoe digging depth.
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Teach Ted L. (Dayton OH), Automatic depth control for endless chain type trencher.
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Sutton ; II James O. (14515 East Rd. Montrose MI 48457), Computer controlled backhoe.
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Teach Ted L. (Dayton OH), Depth control for endless chain type trencher.
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Formanek Jiri (Hofors SEX) Nilsson Rune (Hofors SEX), Device for checking the depth reached by a digging operation.
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Duncklee Timothy V. (3124 Collee Ct. Naples FL 33942), Laser-controlled ground leveling device with overfill sensor and wheel rise limiting device.
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Teach Ted L. (Dayton OH), Method and apparatus for indicating effective digging depth of a backhoe.
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Studebaker Robert H. (Dayton OH), Method and apparatus for laser beam control of backhoe digging depth.
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Johnson Phillip R. (Mandan ND), Tool carrying vehicle with laser control apparatus.
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이 특허를 인용한 특허 (44) 인용/피인용 타임라인 분석

Brabec Vernon J. ; Crumb Bill B. ; Graham Renard T., Bucket depth and angle controller for excavator.
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Ono Tomoaki,JPX ; Tozawa Shoji,JPX, Construction machine with function of measuring finishing accuracy of floor face smoothed thereby.
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Dirrick J. Ferrell ; Ross C. Stoepker ; Timothy E. Steenwyk ; Eric Jon Walstra, Control and method for positioning a tool of a construction apparatus.
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Ferrell Dirrick J. ; Stoepker Ross C. ; Steenwyk Timothy E. ; Walstra Eric Jon, Control and method for positioning a tool of a construction apparatus.
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Steenwyk Timothy E., Control for hydraulically operated construction machine having multiple tandem articulated members.
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Danko, George, Coordinated joint motion control system.
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Danko, George L., Coordinated joint motion control system.
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Danko, George, Coordinated joint motion control system with position error correction.
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Danko, George L., Coordinated joint motion control system with position error correction.
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Fitzkee, Douglas S.; Foster, Christopher A.; Posselius, John; Brubaker, Chris; Ringwald, Justin, Cylinder position sensor.
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Barsby James B. (13116 LaJolla Cir. La Mirada CA 90638) Mondoy Tiodoro (13551 Destino St. Cerritos CA 90701), Earth mover blade stabilizing apparatus.
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Watanabe Hiroshi,JPX ; Hirata Toichi,JPX ; Haga Masakazu,JPX ; Fujishima Kazuo,JPX, Excavation area setting system for area limiting excavation control in construction machines.
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Howell, Mark Nicholas; Frei, Samuel Joseph, Excavator four-bar linkage length and angle offset determination using a laser distance meter.
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Howell, Mark Nicholas; Frei, Samuel Joseph, Excavator limb length determination using a laser distance meter.
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Kraft Brett W. (11667 W. 90th St. Overland Park KS 66214), Force feedback control for backhoe.
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Fujishima Kazuo,JPX ; Watanabe Hiroshi,JPX ; Haga Masakazu,JPX ; Nakagawa Takashi,JPX, Front control system for construction machine and oil temperature indicator.
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Fujishima Kazuo,JPX ; Watanabe Hiroshi,JPX ; Haga Masakazu,JPX ; Nakagawa Takashi,JPX, Front control system, area setting method and control panel for construction machine.
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Glover,Clarence Matthew, Grading control system.
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Conner,Robert G.; Zalusky,James T., Handheld laser light detector with height correction, using a GPS receiver to provide two-dimensional position data.
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Ake, DuWain K., Laser light detector with reflection rejection algorithm.
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Ake DuWain K., Laser receiver and angle sensor mounted on an excavator.
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Savard, Hassel J; Hasara, Robert A, Laser-guided construction equipment.
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Morley, Richard E.; Lajoie, James; Grondstra, Jan W., Machine control over the web.
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Hanseder Anthony, Method and apparatus for accurately positioning a tool on a mobile machine using on-board laser and positioning system.
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Hanseder Anthony, Method and apparatus for calibrating a tool positioning mechanism on a mobile machine.
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Sahm William C., Method and apparatus for determining the attitude of an implement.
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McCain, Steven Daniel, Method and apparatus for satellite positioning of earth-moving equipment.
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Cripps, Donald Lewis, Method and system for controlling a mechanical arm.
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Ahn Seong-Ho,KRX, Method for carrying out automatic surface finishing work with electro-hydraulic excavator vehicle.
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Ake,DuWain K., Modulated laser light detector.
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Ake,DuWain K.; Hajmousa,Ayman, Modulated laser light detector with discrete fourier transform algorithm.
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Sahm,William Charles; Koehrsen,Craig Lawrence, Positioning system for an excavating work machine.
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Fujishima, Kazuo; Kurenuma, Tooru; Ogura, Hiroshi; Ishibashi, Hideto, Remote control system and remote setting system for construction machinery.
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Marsh Richard G. (Simi Valley CA), Sensor mount for an excavator.
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Geelhoed Jack,GBX, Sensor positioning apparatus for trench excavator.
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Stratton, Kenneth Lee; Henderson, Daniel E., Site profile based control system and method for controlling a work implement.
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Watanabe Hiroshi,JPX ; Fujishima Kazuo,JPX ; Haga Masakazu,JPX, Slope excavation controller of hydraulic shovel, target slope setting device and slope excavation forming method.
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Steenwyk Timothy E., Starting position control for demolition apparatus.
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Montgomery, James Leonard, Three dimensional feature location and characterization from an excavator.
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Montgomery, James Leonard, Three dimensional feature location from an excavator.
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Montgomery, James Leonard, Three dimensional feature location from an excavator.
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Nakamura, Satoshi; Egawa, Saku, Trace generation device and working machine.
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A	생활필수품
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A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Apparatus and method for controlling a hydraulic excavator 원문보기