JPS6474910A - Apparatus for controlling height of ground-working vehicle - Google Patents
Apparatus for controlling height of ground-working vehicleInfo
- Publication number
- JPS6474910A JPS6474910A JP23064687A JP23064687A JPS6474910A JP S6474910 A JPS6474910 A JP S6474910A JP 23064687 A JP23064687 A JP 23064687A JP 23064687 A JP23064687 A JP 23064687A JP S6474910 A JPS6474910 A JP S6474910A
- Authority
- JP
- Japan
- Prior art keywords
- height
- ground
- working vehicle
- multiplying
- machine
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Harvester Elements (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
PURPOSE:To detect the height of a ground-working vehicle, etc., over a wide range and to enable accurate control of the height, by setting the detection range of a non-contact sensor in the direction of the width of the machine to be wider than the detection range in the moving direction of the machine. CONSTITUTION:The distance between the ground surface and a non-contact sensor 12 is determined by emitting an ultrasonic wave from a transmission microphone 12a in a laterally extended waveguide 22, counting the period required to receive the reflected sound with a reception microphone 12b, multiplying the period by the sound velocity and multiplying the value by 1/2. The real plowing depth obtained by the above process is controlled to a prescribed plowing depth by extending or contracting a hydraulic cylinder 15 to enable the detection of the height over a wide range in lateral direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230646A JPH0751004B2 (en) | 1987-09-14 | 1987-09-14 | Height control device for ground work vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230646A JPH0751004B2 (en) | 1987-09-14 | 1987-09-14 | Height control device for ground work vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6474910A true JPS6474910A (en) | 1989-03-20 |
JPH0751004B2 JPH0751004B2 (en) | 1995-06-05 |
Family
ID=16911052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62230646A Expired - Lifetime JPH0751004B2 (en) | 1987-09-14 | 1987-09-14 | Height control device for ground work vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0751004B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04136006U (en) * | 1991-02-08 | 1992-12-17 | ヤンマー農機株式会社 | Tillage depth detection device |
CN106233921A (en) * | 2016-07-05 | 2016-12-21 | 南京理工大学 | A kind of harvester header highly automated regulation system and control method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE2150881A1 (en) * | 2021-07-05 | 2023-01-06 | Vaederstad Holding Ab | AGRICULTURAL TOOLS AND PROCEDURE FOR NON-CONTACT DISTANCE MEASUREMENT |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59116008A (en) * | 1982-12-22 | 1984-07-04 | Kubota Ltd | Detector for height of working car to ground |
JPS6255004A (en) * | 1985-09-03 | 1987-03-10 | 株式会社クボタ | Agricultural tractor |
-
1987
- 1987-09-14 JP JP62230646A patent/JPH0751004B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59116008A (en) * | 1982-12-22 | 1984-07-04 | Kubota Ltd | Detector for height of working car to ground |
JPS6255004A (en) * | 1985-09-03 | 1987-03-10 | 株式会社クボタ | Agricultural tractor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04136006U (en) * | 1991-02-08 | 1992-12-17 | ヤンマー農機株式会社 | Tillage depth detection device |
CN106233921A (en) * | 2016-07-05 | 2016-12-21 | 南京理工大学 | A kind of harvester header highly automated regulation system and control method |
CN106233921B (en) * | 2016-07-05 | 2019-02-15 | 南京理工大学 | A kind of highly automated regulating system of harvester header and control method |
Also Published As
Publication number | Publication date |
---|---|
JPH0751004B2 (en) | 1995-06-05 |
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