JPS5544958A - Automatic north locator - Google Patents

Automatic north locator

Info

Publication number
JPS5544958A
JPS5544958A JP11850678A JP11850678A JPS5544958A JP S5544958 A JPS5544958 A JP S5544958A JP 11850678 A JP11850678 A JP 11850678A JP 11850678 A JP11850678 A JP 11850678A JP S5544958 A JPS5544958 A JP S5544958A
Authority
JP
Japan
Prior art keywords
axis
angle
output
sensor
north
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
JP11850678A
Other languages
Japanese (ja)
Other versions
JPS5947243B2 (en
Inventor
Koji Yamawaki
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.)
Japan Aviation Electronics Industry Ltd
Original Assignee
Japan Aviation Electronics Industry 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 Japan Aviation Electronics Industry Ltd filed Critical Japan Aviation Electronics Industry Ltd
Priority to JP11850678A priority Critical patent/JPS5947243B2/en
Publication of JPS5544958A publication Critical patent/JPS5544958A/en
Publication of JPS5947243B2 publication Critical patent/JPS5947243B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To make it possible to accurately locate the north even under the vibratory condition with the use of a simple construction using a simple compensating system but not an inertia device.
CONSTITUTION: In a sensor unit 1, Xo and Yo coordinates are made to have the north an azimuth angle ψ on a horizontal plane, and an X axis is made to have the Xo axis and θ whereas a Y axis is made to have the Yo axis and an angle of inclination ϕ. The output of an angular sensor 11X is given by the equation containing the vertical and horizontal components of the axis of revolutions of the earth, and the output of an angular sensor 11Y is given. On the other hand, the output aX of an X axis acceleration sensor 12X is divided by an acceleration g with the use of a multiplier to determine the angle of inclination θ and is multiplied by the vertical component ΩV. These are calculated to determine the angular velocity on the Xo axis so that the angular velocity is integrated by an integrator 23 to determine an angle Ao. Then, the influences from the vibrations are eliminated and compensated by an adder 25. Likewise, fo the Y axis, compensation is made by an adder 30 to determine the angle Bo so that the value ψ for each second can be continuously determined by the calculation.
COPYRIGHT: (C)1980,JPO&Japio
JP11850678A 1978-09-26 1978-09-26 automatic north finding device Expired JPS5947243B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11850678A JPS5947243B2 (en) 1978-09-26 1978-09-26 automatic north finding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11850678A JPS5947243B2 (en) 1978-09-26 1978-09-26 automatic north finding device

Publications (2)

Publication Number Publication Date
JPS5544958A true JPS5544958A (en) 1980-03-29
JPS5947243B2 JPS5947243B2 (en) 1984-11-17

Family

ID=14738332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11850678A Expired JPS5947243B2 (en) 1978-09-26 1978-09-26 automatic north finding device

Country Status (1)

Country Link
JP (1) JPS5947243B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147991A (en) * 1984-08-14 1986-03-08 日本電気株式会社 Voice time length data generator
JPH0611349A (en) * 1992-06-26 1994-01-21 Japan Aviation Electron Ind Ltd Azimuth meter
WO2021068650A1 (en) * 2019-10-07 2021-04-15 佛吉亚歌乐电子(丰城)有限公司 Vehicle-mounted compass implementation method and system based on gps inertial navigation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147991A (en) * 1984-08-14 1986-03-08 日本電気株式会社 Voice time length data generator
JPH0611349A (en) * 1992-06-26 1994-01-21 Japan Aviation Electron Ind Ltd Azimuth meter
WO2021068650A1 (en) * 2019-10-07 2021-04-15 佛吉亚歌乐电子(丰城)有限公司 Vehicle-mounted compass implementation method and system based on gps inertial navigation

Also Published As

Publication number Publication date
JPS5947243B2 (en) 1984-11-17

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