JPS6439909A - Sensor for vacant hill - Google Patents

Sensor for vacant hill

Info

Publication number
JPS6439909A
JPS6439909A JP19736187A JP19736187A JPS6439909A JP S6439909 A JPS6439909 A JP S6439909A JP 19736187 A JP19736187 A JP 19736187A JP 19736187 A JP19736187 A JP 19736187A JP S6439909 A JPS6439909 A JP S6439909A
Authority
JP
Japan
Prior art keywords
sensed
sensor
signal
seedlings
vacant
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
JP19736187A
Other languages
Japanese (ja)
Other versions
JPH069445B2 (en
Inventor
Hiroshi Otsubo
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP19736187A priority Critical patent/JPH069445B2/en
Publication of JPS6439909A publication Critical patent/JPS6439909A/en
Publication of JPH069445B2 publication Critical patent/JPH069445B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Transplanting Machines (AREA)

Abstract

PURPOSE:To facilitate sensing of continuous vacant hills with a high accuracy without using a mechanism performing complicated operation, by judging the presence or absence of seedlings based on sensing direction and sensed area by a sensor and sensed results from the sensor. CONSTITUTION:A sensor 12 is provided with a light emitting part for sending infrared rays and receiving part for receiving the infrared rays reflected by seedlings (Wa). If seedlings, etc., are present in a sensed area (S), a signal is outputted at a high voltage. If the seedling, etc., are absent, a signal is outputted at a low voltage. A sensed signal due to passage of planting tines in the sensed area (S) is made at a given period after the time when the seedlings (Wa) are absent. A signal in a state except the sensed signal caused by the planting tines is outputted to an alarm 14 by an existence judging means 13. If three or more vacant hills (N) occur, the alarm 14 is operated so that an operator may recognize the occurrence of the vacant hills by sound.
JP19736187A 1987-08-06 1987-08-06 Missing stock detection device Expired - Lifetime JPH069445B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19736187A JPH069445B2 (en) 1987-08-06 1987-08-06 Missing stock detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19736187A JPH069445B2 (en) 1987-08-06 1987-08-06 Missing stock detection device

Publications (2)

Publication Number Publication Date
JPS6439909A true JPS6439909A (en) 1989-02-10
JPH069445B2 JPH069445B2 (en) 1994-02-09

Family

ID=16373211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19736187A Expired - Lifetime JPH069445B2 (en) 1987-08-06 1987-08-06 Missing stock detection device

Country Status (1)

Country Link
JP (1) JPH069445B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372808A (en) * 1989-08-11 1991-03-28 Iseki & Co Ltd Apparatus for alarming missing plant for transplantation machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372808A (en) * 1989-08-11 1991-03-28 Iseki & Co Ltd Apparatus for alarming missing plant for transplantation machine

Also Published As

Publication number Publication date
JPH069445B2 (en) 1994-02-09

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