GB2173309B - Automatic sonar activated height control for a header - Google Patents

Automatic sonar activated height control for a header

Info

Publication number
GB2173309B
GB2173309B GB08508540A GB8508540A GB2173309B GB 2173309 B GB2173309 B GB 2173309B GB 08508540 A GB08508540 A GB 08508540A GB 8508540 A GB8508540 A GB 8508540A GB 2173309 B GB2173309 B GB 2173309B
Authority
GB
United Kingdom
Prior art keywords
header
height control
activated height
sonar
automatic
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.)
Expired
Application number
GB08508540A
Other versions
GB8508540D0 (en
GB2173309A (en
Inventor
Ezra Cordell Lundahl
Wilford Ray Thornley
James Gordon Wiser
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.)
Ezra C Lundahl Inc
Original Assignee
Ezra C Lundahl Inc
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 Ezra C Lundahl Inc filed Critical Ezra C Lundahl Inc
Priority to GB08508540A priority Critical patent/GB2173309B/en
Publication of GB8508540D0 publication Critical patent/GB8508540D0/en
Publication of GB2173309A publication Critical patent/GB2173309A/en
Application granted granted Critical
Publication of GB2173309B publication Critical patent/GB2173309B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A01D41/14—Mowing tables
    • A01D41/141—Automatic header control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • 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
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1418—Control of position or direction using feedback using an analogue comparing device with ac amplifier chain

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB08508540A 1985-04-02 1985-04-02 Automatic sonar activated height control for a header Expired GB2173309B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08508540A GB2173309B (en) 1985-04-02 1985-04-02 Automatic sonar activated height control for a header

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08508540A GB2173309B (en) 1985-04-02 1985-04-02 Automatic sonar activated height control for a header

Publications (3)

Publication Number Publication Date
GB8508540D0 GB8508540D0 (en) 1985-05-09
GB2173309A GB2173309A (en) 1986-10-08
GB2173309B true GB2173309B (en) 1988-08-17

Family

ID=10577058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08508540A Expired GB2173309B (en) 1985-04-02 1985-04-02 Automatic sonar activated height control for a header

Country Status (1)

Country Link
GB (1) GB2173309B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260113A3 (en) * 1986-09-08 1989-09-20 Agtronics Pty. Ltd. Ultrasonic height control system
US4914593B1 (en) * 1988-06-09 1995-01-17 Spectra Physics Method for automatic depth control for earth moving and grading
US4918608B1 (en) * 1988-06-09 1996-07-02 Christopher O Middleton Method for automatic depth control for earth moving and grading
US5235511A (en) * 1988-06-09 1993-08-10 Spectra-Physics, Inc. Method for automatic depth control for earth moving and grading
US5060205A (en) * 1990-05-29 1991-10-22 Deere & Company Ultrasonic distance measuring system
GB9519565D0 (en) * 1995-09-26 1995-11-29 Ford New Holland Nv Apparatus for controlling a position-adjustable implement
DE102012106065A1 (en) * 2012-07-06 2014-01-09 Claas Selbstfahrende Erntemaschinen Gmbh Harvester
DE102016118637A1 (en) * 2016-09-30 2018-04-05 Claas Selbstfahrende Erntemaschinen Gmbh Combine harvester with a cutting unit and control of a cutting unit
US10757859B2 (en) 2017-07-20 2020-09-01 Deere & Company System for optimizing platform settings based on crop state classification
RU2747303C2 (en) 2018-04-09 2021-05-04 Дир Энд Компани System for controlling the working parameter of a harvester
DE102019127508A1 (en) 2019-10-11 2021-04-15 Carl Geringhoff Gmbh & Co. Kg Cutting unit with safety device for a height-adjustable reel
US11793111B2 (en) * 2019-11-27 2023-10-24 Cnh Industrial America Llc Harvesting head reel-mounted laser measurement
BR112022012379A2 (en) * 2019-12-23 2022-08-30 Cnh Ind America Llc REEL ASSEMBLY WITH RETRACTABLE SENSOR ARM FOR AN AGRICULTURAL CUTTING PLATFORM
US20210185916A1 (en) * 2019-12-23 2021-06-24 Cnh Industrial America Llc Sensor assembly for an agricultural header
US11533851B2 (en) 2019-12-23 2022-12-27 Cnh Industrial America Llc Reel assembly for an agricultural header
AR120844A1 (en) * 2019-12-23 2022-03-23 Cnh Ind America Llc REEL ASSEMBLY FOR A FARM HEAD
US20220322598A1 (en) * 2021-04-07 2022-10-13 Cnh Industrial America Llc Mounting apparatus for agricultural header sensors

Also Published As

Publication number Publication date
GB8508540D0 (en) 1985-05-09
GB2173309A (en) 1986-10-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030402