JPS5544958A - Automatic north locator - Google Patents
Automatic north locatorInfo
- 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
Links
Landscapes
- Navigation (AREA)
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
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)
| 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 |
-
1978
- 1978-09-26 JP JP11850678A patent/JPS5947243B2/en not_active Expired
Cited By (3)
| 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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