JPS56124011A - Automatic arithmetic operation device for azimuth - Google Patents

Automatic arithmetic operation device for azimuth

Info

Publication number
JPS56124011A
JPS56124011A JP2845880A JP2845880A JPS56124011A JP S56124011 A JPS56124011 A JP S56124011A JP 2845880 A JP2845880 A JP 2845880A JP 2845880 A JP2845880 A JP 2845880A JP S56124011 A JPS56124011 A JP S56124011A
Authority
JP
Japan
Prior art keywords
azimuth
northern
gyrocompass
arithmetic operation
prearranged
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
JP2845880A
Other languages
Japanese (ja)
Inventor
Kiyomi Minohara
Kiyoetsu Hachitani
Atsushi Abe
Hiroshi Nakai
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno Electric 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP2845880A priority Critical patent/JPS56124011A/en
Publication of JPS56124011A publication Critical patent/JPS56124011A/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
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/34—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes
    • G01C19/38—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Navigation (AREA)

Abstract

PURPOSE:To arrange so that a northern direction may be found in a brief period regardless of a standing still at a pointed northern end after starting by reading and carrying out an arithmetic operation on an azimuth on a gyrocompass at three optional different timings. CONSTITUTION:An angle formed by an azimuth i.e. a pointed northern end on a gyrocompass and a bow azimuth is read by means of an azimuth reader 3 at prearranged timings t1, t2, t3 sounded by a clock 4. In addition, a latitude where a ship is presently located is sought by a Roland receiver 2. An azimuth, a latitude and a timing obtained in this manner are input to a computer 5 as input data and an angle formed by a northern direction and bow direction is sought in a brief period under a prearranged formula and then is displayed on an indicator 6. Thus it is possible to find a northern direction in a matter of a few minutes after starting without waiting for a gyrocompass to completely stant still.
JP2845880A 1980-03-05 1980-03-05 Automatic arithmetic operation device for azimuth Pending JPS56124011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2845880A JPS56124011A (en) 1980-03-05 1980-03-05 Automatic arithmetic operation device for azimuth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2845880A JPS56124011A (en) 1980-03-05 1980-03-05 Automatic arithmetic operation device for azimuth

Publications (1)

Publication Number Publication Date
JPS56124011A true JPS56124011A (en) 1981-09-29

Family

ID=12249215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2845880A Pending JPS56124011A (en) 1980-03-05 1980-03-05 Automatic arithmetic operation device for azimuth

Country Status (1)

Country Link
JP (1) JPS56124011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590845A (en) * 2018-08-17 2021-07-07 Louver Lite Ltd Window blind arrangement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50118751A (en) * 1974-02-28 1975-09-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50118751A (en) * 1974-02-28 1975-09-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590845A (en) * 2018-08-17 2021-07-07 Louver Lite Ltd Window blind arrangement
GB2590845B (en) * 2018-08-17 2023-01-18 Louver Lite Ltd Window blind arrangement

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