JPS6474912A - Apparatus for controlling plowing depth of tractor - Google Patents

Apparatus for controlling plowing depth of tractor

Info

Publication number
JPS6474912A
JPS6474912A JP23064887A JP23064887A JPS6474912A JP S6474912 A JPS6474912 A JP S6474912A JP 23064887 A JP23064887 A JP 23064887A JP 23064887 A JP23064887 A JP 23064887A JP S6474912 A JPS6474912 A JP S6474912A
Authority
JP
Japan
Prior art keywords
soil
hardness
tractor
height
ultrasonic wave
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
JP23064887A
Other languages
Japanese (ja)
Inventor
Hideki Kamiyama
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.)
Yanmar Agricultural Equipment Co Ltd
Yanmar Agribusiness Co Ltd
Original Assignee
Seirei Industry Co Ltd
Yanmar Agricultural Equipment Co 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 Seirei Industry Co Ltd, Yanmar Agricultural Equipment Co Ltd filed Critical Seirei Industry Co Ltd
Priority to JP23064887A priority Critical patent/JPS6474912A/en
Publication of JPS6474912A publication Critical patent/JPS6474912A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)

Abstract

PURPOSE:To automatically set a threshold level corresponding to the hardness of soil and to enable accurate and stable control of plowing depth, by preliminarily emitting an ultrasonic wave against soil prior to the detection of the height with an ultrasonic sensor, thereby detecting the hardness of the soil. CONSTITUTION:An ultrasonic sensor 12 having a transmission microphone 12a and a reception microphone 12b is connected to a counter and the period from the emissions of ultrasonic wave to the reception is counted to detect the height of the tractor. Ultrasonic wave is preliminarily emitted to detect the hardness of the soil prior to the detection of the height and the threshold level is automatically adjusted according to the soil hardness.
JP23064887A 1987-09-14 1987-09-14 Apparatus for controlling plowing depth of tractor Pending JPS6474912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23064887A JPS6474912A (en) 1987-09-14 1987-09-14 Apparatus for controlling plowing depth of tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23064887A JPS6474912A (en) 1987-09-14 1987-09-14 Apparatus for controlling plowing depth of tractor

Publications (1)

Publication Number Publication Date
JPS6474912A true JPS6474912A (en) 1989-03-20

Family

ID=16911086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23064887A Pending JPS6474912A (en) 1987-09-14 1987-09-14 Apparatus for controlling plowing depth of tractor

Country Status (1)

Country Link
JP (1) JPS6474912A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5543788A (en) * 1991-07-12 1996-08-06 Fujitsu Limited Map management system in geographic information management system
US7464749B2 (en) 2003-11-06 2008-12-16 Denso Corporation Air-conditioning unit
WO2015164802A1 (en) * 2014-04-25 2015-10-29 Cnh Industrial America Llc System for mounting an agricultural soil analyzer to agricultural implement
JP2020054317A (en) * 2018-10-04 2020-04-09 株式会社クボタ Work vehicle
CN114916259A (en) * 2022-05-27 2022-08-19 黑龙江省农业科学院土壤肥料与环境资源研究所 Subsoiling device capable of continuously measuring mechanical resistance of soil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5543788A (en) * 1991-07-12 1996-08-06 Fujitsu Limited Map management system in geographic information management system
US7464749B2 (en) 2003-11-06 2008-12-16 Denso Corporation Air-conditioning unit
WO2015164802A1 (en) * 2014-04-25 2015-10-29 Cnh Industrial America Llc System for mounting an agricultural soil analyzer to agricultural implement
US9516802B2 (en) 2014-04-25 2016-12-13 Cnh Industrial America Llc System and method for controlling an agricultural system based on soil analysis
US10028424B2 (en) 2014-04-25 2018-07-24 Cnh Industrial America Llc System for mounting an agricultural soil analyzer to agricultural implement
US10765056B2 (en) 2014-04-25 2020-09-08 Cnh Industrial America Llc System and method for controlling an agricultural system based on soil analysis
JP2020054317A (en) * 2018-10-04 2020-04-09 株式会社クボタ Work vehicle
CN114916259A (en) * 2022-05-27 2022-08-19 黑龙江省农业科学院土壤肥料与环境资源研究所 Subsoiling device capable of continuously measuring mechanical resistance of soil
CN114916259B (en) * 2022-05-27 2023-01-31 黑龙江省黑土保护利用研究院 Subsoiling device capable of continuously measuring mechanical resistance of soil

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