JPS5580112A - Automatic conducting device for transplanter - Google Patents

Automatic conducting device for transplanter

Info

Publication number
JPS5580112A
JPS5580112A JP15456078A JP15456078A JPS5580112A JP S5580112 A JPS5580112 A JP S5580112A JP 15456078 A JP15456078 A JP 15456078A JP 15456078 A JP15456078 A JP 15456078A JP S5580112 A JPS5580112 A JP S5580112A
Authority
JP
Japan
Prior art keywords
projected
conducting operation
projector
detector
line
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
Application number
JP15456078A
Other languages
Japanese (ja)
Other versions
JPS6367205B2 (en
Inventor
Tsutomu Sugimoto
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 Co Ltd
Original Assignee
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 Yanmar Agricultural Equipment Co Ltd filed Critical Yanmar Agricultural Equipment Co Ltd
Priority to JP15456078A priority Critical patent/JPS5580112A/en
Publication of JPS5580112A publication Critical patent/JPS5580112A/en
Publication of JPS6367205B2 publication Critical patent/JPS6367205B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Guiding Agricultural Machines (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

PURPOSE: To perform conducting operation with high precision by simple structure by obtaining a control input for automatic conducting operation by periodically moving light to be projected on a line of seedling to the right and left of the device body.
CONSTITUTION: Projected light P1 emitted by projector-detector 20 while sliding device 21 goes and returns once is projected on line Q of seedlings (q) on the going and returning ways once each, and projector-detector 20 detects reflected light P2 once each. Then, control circuit 31 exercises a supervision over difference (t1) in generating timing between periodic pulse signal R21 emitted from limit switch 21b and pulse signal R20 in the going way of projector-detector 20 and period (t0) of signal R21, and then makes a comparison between (t0)/4 and (t1) to exercising control over conducting operation. Namely, a control input for automatic conducting operation is obtained by periodically moving light to be projected on a line of seedlings to the right and left of the device, so that high-precision conducting operation can be performed by simple structure.
COPYRIGHT: (C)1980,JPO&Japio
JP15456078A 1978-12-12 1978-12-12 Automatic conducting device for transplanter Granted JPS5580112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15456078A JPS5580112A (en) 1978-12-12 1978-12-12 Automatic conducting device for transplanter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15456078A JPS5580112A (en) 1978-12-12 1978-12-12 Automatic conducting device for transplanter

Publications (2)

Publication Number Publication Date
JPS5580112A true JPS5580112A (en) 1980-06-17
JPS6367205B2 JPS6367205B2 (en) 1988-12-23

Family

ID=15586907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15456078A Granted JPS5580112A (en) 1978-12-12 1978-12-12 Automatic conducting device for transplanter

Country Status (1)

Country Link
JP (1) JPS5580112A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945606U (en) * 1982-09-17 1984-03-26 ヤンマー農機株式会社 Steering sensor structure in automatic steering tractor
JPS63296607A (en) * 1987-05-28 1988-12-02 Kubota Ltd Seedling line detecting sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945606U (en) * 1982-09-17 1984-03-26 ヤンマー農機株式会社 Steering sensor structure in automatic steering tractor
JPS63296607A (en) * 1987-05-28 1988-12-02 Kubota Ltd Seedling line detecting sensor
JPH0665249B2 (en) * 1987-05-28 1994-08-24 株式会社クボタ Seedling sensor

Also Published As

Publication number Publication date
JPS6367205B2 (en) 1988-12-23

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