AU3910885A - A depth control system - Google Patents

A depth control system

Info

Publication number
AU3910885A
AU3910885A AU39108/85A AU3910885A AU3910885A AU 3910885 A AU3910885 A AU 3910885A AU 39108/85 A AU39108/85 A AU 39108/85A AU 3910885 A AU3910885 A AU 3910885A AU 3910885 A AU3910885 A AU 3910885A
Authority
AU
Australia
Prior art keywords
control system
depth control
depth
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
AU39108/85A
Inventor
Michael Worthington
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Aye Pty Ltd
Original Assignee
De Aye Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De Aye Pty Ltd filed Critical De Aye Pty Ltd
Priority to AU39108/85A priority Critical patent/AU3910885A/en
Publication of AU3910885A publication Critical patent/AU3910885A/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
    • A01B63/1112—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements using a non-tactile ground distance measurement, e.g. using reflection of waves
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/20—Control of position or direction using feedback using a digital comparing device

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
AU39108/85A 1983-10-07 1985-02-22 A depth control system Pending AU3910885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU39108/85A AU3910885A (en) 1983-10-07 1985-02-22 A depth control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU30289/84A AU563491B2 (en) 1983-07-06 1983-10-07 Depth control system
AU39108/85A AU3910885A (en) 1983-10-07 1985-02-22 A depth control system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU30289/84A Division AU563491B2 (en) 1983-07-06 1983-10-07 Depth control system

Publications (1)

Publication Number Publication Date
AU3910885A true AU3910885A (en) 1985-03-21

Family

ID=3718258

Family Applications (2)

Application Number Title Priority Date Filing Date
AU30289/84A Ceased AU563491B2 (en) 1983-07-06 1983-10-07 Depth control system
AU39108/85A Pending AU3910885A (en) 1983-10-07 1985-02-22 A depth control system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AU30289/84A Ceased AU563491B2 (en) 1983-07-06 1983-10-07 Depth control system

Country Status (1)

Country Link
AU (2) AU563491B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001906A1 (en) * 1984-09-18 1986-03-27 Agtronics Pty. Ltd. Means for determining distance between two points

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507910A (en) * 1983-11-21 1985-04-02 Ezra C. Lundahl, Inc. Automatic sonar activated height control for a header
FR2666911B1 (en) * 1990-09-19 1992-12-18 Huard Sa ELECTRONIC DEVICE FOR CONTROLLING THE DEPTH AND LIFTING OF A SEMI-REACHED PLOW.
FR2681500B1 (en) * 1991-09-24 1998-09-11 Sagem METHOD AND DEVICE FOR THE VERTICAL REGULATION, RELATIVE TO THE SURFACE OF THE GROUND, OF A TOOL MOUNTED AT THE BACK OF A VEHICLE AND AGRICULTURAL TRACTOR EQUIPPED WITH IT.
ITUA20161821A1 (en) * 2016-03-18 2017-09-18 Cnh Ind Italia Spa ULTRASONIC SENSORS TO MEASURE THE IRREGULARITY OF THE SOIL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001906A1 (en) * 1984-09-18 1986-03-27 Agtronics Pty. Ltd. Means for determining distance between two points

Also Published As

Publication number Publication date
AU563491B2 (en) 1987-07-09
AU3028984A (en) 1985-01-31

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