JPS56117110A - Measuring method of position of drifting buoy - Google Patents

Measuring method of position of drifting buoy

Info

Publication number
JPS56117110A
JPS56117110A JP2100980A JP2100980A JPS56117110A JP S56117110 A JPS56117110 A JP S56117110A JP 2100980 A JP2100980 A JP 2100980A JP 2100980 A JP2100980 A JP 2100980A JP S56117110 A JPS56117110 A JP S56117110A
Authority
JP
Japan
Prior art keywords
fixed
buoy
photodetecting
light
positions
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
JP2100980A
Other languages
Japanese (ja)
Inventor
Takaya Satou
Tatsuo Yamamoto
Masaki Yamamoto
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.)
Kansai Electric Power Co Inc
Original Assignee
Kansai Electric Power Co Inc
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 Kansai Electric Power Co Inc filed Critical Kansai Electric Power Co Inc
Priority to JP2100980A priority Critical patent/JPS56117110A/en
Publication of JPS56117110A publication Critical patent/JPS56117110A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
    • G01C3/12—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument with monocular observation at a single point, e.g. coincidence type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To measure positions successively and accurately by setting up light sources on two fixed positions with an interval and drifting buoy and measuring the time interval when the light sources of the buoy and one fixed position are detected by means of photodetecting devices in which photodetecting directions are revolved at two fixed positions. CONSTITUTION:Light sources are set up on two fixed points A and B with an interval on land and drifting buoy 4 (point C) and a photodetecting device, which consists of photodetector 8 with photodetecting part on the whole circumference and light penetrating slit 10 which rotates around the periphery at a constant speed, is installed to each fixed point A and B respectively. For example, if the time required for detecting the light from buoy 4 (C) after detecting the light from fixed point B is measured at fixed point A, angle alpha is found from the revolving speed of rotation color 9. Since angle beta can be also measured in the same manner, the position of drifting buoy 4 can be found. Thus, positions can be measured successively and accurately by means of simple device.
JP2100980A 1980-02-20 1980-02-20 Measuring method of position of drifting buoy Pending JPS56117110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2100980A JPS56117110A (en) 1980-02-20 1980-02-20 Measuring method of position of drifting buoy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2100980A JPS56117110A (en) 1980-02-20 1980-02-20 Measuring method of position of drifting buoy

Publications (1)

Publication Number Publication Date
JPS56117110A true JPS56117110A (en) 1981-09-14

Family

ID=12043060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2100980A Pending JPS56117110A (en) 1980-02-20 1980-02-20 Measuring method of position of drifting buoy

Country Status (1)

Country Link
JP (1) JPS56117110A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914082A (en) * 1982-07-15 1984-01-24 Hajime Enomoto Device for detecting coordinate
JPS61260322A (en) * 1985-05-10 1986-11-18 ザ・レイトラム・コ−ポレ−シヨン Positioning system
JPS62127682A (en) * 1985-11-29 1987-06-09 Kajima Corp Method and device for plane position detection using laser
JPH0346815U (en) * 1989-09-14 1991-04-30

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914082A (en) * 1982-07-15 1984-01-24 Hajime Enomoto Device for detecting coordinate
JPS61260322A (en) * 1985-05-10 1986-11-18 ザ・レイトラム・コ−ポレ−シヨン Positioning system
JPH0490242U (en) * 1985-05-10 1992-08-06
JPS62127682A (en) * 1985-11-29 1987-06-09 Kajima Corp Method and device for plane position detection using laser
JPH0411806B2 (en) * 1985-11-29 1992-03-02 Kajima Corp
JPH0346815U (en) * 1989-09-14 1991-04-30

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