JPS58152410A - 作業部の対地レベル検出装置 - Google Patents

作業部の対地レベル検出装置

Info

Publication number
JPS58152410A
JPS58152410A JP3566982A JP3566982A JPS58152410A JP S58152410 A JPS58152410 A JP S58152410A JP 3566982 A JP3566982 A JP 3566982A JP 3566982 A JP3566982 A JP 3566982A JP S58152410 A JPS58152410 A JP S58152410A
Authority
JP
Japan
Prior art keywords
comparator
ground
support frame
ultrasonic
time
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
JP3566982A
Other languages
English (en)
Japanese (ja)
Other versions
JPS644601B2 (enExample
Inventor
佐藤　茂夫
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 JP3566982A priority Critical patent/JPS58152410A/ja
Publication of JPS58152410A publication Critical patent/JPS58152410A/ja
Publication of JPS644601B2 publication Critical patent/JPS644601B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Harvester Elements (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Agricultural Machines (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
JP3566982A 1982-03-04 1982-03-04 作業部の対地レベル検出装置 Granted JPS58152410A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3566982A JPS58152410A (ja) 1982-03-04 1982-03-04 作業部の対地レベル検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3566982A JPS58152410A (ja) 1982-03-04 1982-03-04 作業部の対地レベル検出装置

Publications (2)

Publication Number Publication Date
JPS58152410A true JPS58152410A (ja) 1983-09-10
JPS644601B2 JPS644601B2 (enExample) 1989-01-26

Family

ID=12448274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3566982A Granted JPS58152410A (ja) 1982-03-04 1982-03-04 作業部の対地レベル検出装置

Country Status (1)

Country Link
JP (1) JPS58152410A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412284A (en) * 1987-07-06 1989-01-17 Kurita Water Ind Ltd Ultrasonic range finder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216325A (en) * 1975-07-30 1977-02-07 Yanmar Agricult Equip Cutterrbar adjusting device for combine
JPS5570761A (en) * 1978-11-22 1980-05-28 Matsushita Electric Ind Co Ltd Ultrasonic wave distance meter
JPS56153267A (en) * 1980-04-30 1981-11-27 Diesel Kiki Co Ltd Distance measuring device using ultrasonic wave

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216325A (en) * 1975-07-30 1977-02-07 Yanmar Agricult Equip Cutterrbar adjusting device for combine
JPS5570761A (en) * 1978-11-22 1980-05-28 Matsushita Electric Ind Co Ltd Ultrasonic wave distance meter
JPS56153267A (en) * 1980-04-30 1981-11-27 Diesel Kiki Co Ltd Distance measuring device using ultrasonic wave

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412284A (en) * 1987-07-06 1989-01-17 Kurita Water Ind Ltd Ultrasonic range finder

Also Published As

Publication number Publication date
JPS644601B2 (enExample) 1989-01-26

Similar Documents

Publication Publication Date Title
US5235315A (en) Self test for obstacle detection system
US5573041A (en) Dispenser control with ultrasonic position detection
US5829072A (en) Automatic shower control
KR930002467B1 (ko) 차량용 물체 감지장치
US20090207006A1 (en) Method for Functionally Testing an Ultrasonic Sensor
NO150580B (no) Apparat for tyverialarm og sikkerhetsovervaakning
DE10142075A1 (de) Hinderniserfassungssystem mit einer Schnee-Erfassungsfunktion
US20050253102A1 (en) Faucet control device and associated method
US7385487B2 (en) Obstacle detection method and system, particularly for systems for assisting the parking of vehicles
EP3336581A1 (en) A method of detecting objects and corresponding apparatus
CN108594806B (zh) 扫地机脱困方法和装置
EP0813075A1 (en) Proximity detecting device
JPS58152410A (ja) 作業部の対地レベル検出装置
US20030155488A1 (en) Object detection technology
EP3472639B1 (en) Ultra-wideband radar with normalized sensitivity
CN112731412A (zh) 一种超声波避障方法及自动行走设备
KR20190115052A (ko) 은폐되어 설치된 차량 초음파 센서를 작동시키기 위한 방법
JPH025705Y2 (enExample)
KR20050036348A (ko) 진단/보상 기능을 갖는 차량의 장애물 감지 장치 및 방법
JP2892453B2 (ja) 超音波検知器
JP3054798B2 (ja) 超音波センサ
JPS6345575A (ja) 超音波物体検知器
EP0501858A2 (en) Fail safe obstruction detector for door openers
JPS6245541Y2 (enExample)
JPS6332410B2 (enExample)