FR2354538A1 - METHOD AND DEVICE FOR DETERMINING THE NORTH DIRECTION - Google Patents

METHOD AND DEVICE FOR DETERMINING THE NORTH DIRECTION

Info

Publication number
FR2354538A1
FR2354538A1 FR7702074A FR7702074A FR2354538A1 FR 2354538 A1 FR2354538 A1 FR 2354538A1 FR 7702074 A FR7702074 A FR 7702074A FR 7702074 A FR7702074 A FR 7702074A FR 2354538 A1 FR2354538 A1 FR 2354538A1
Authority
FR
France
Prior art keywords
angle
phiv
case
check
determining
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
FR7702074A
Other languages
French (fr)
Other versions
FR2354538B1 (en
Inventor
Wilhelm Schwieder
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.)
Bodenseewerk Geratetechnik GmbH
Original Assignee
Bodenseewerk Geratetechnik GmbH
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 Bodenseewerk Geratetechnik GmbH filed Critical Bodenseewerk Geratetechnik GmbH
Publication of FR2354538A1 publication Critical patent/FR2354538A1/en
Application granted granted Critical
Publication of FR2354538B1 publication Critical patent/FR2354538B1/fr
Granted 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)
  • Gyroscopes (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

La présente invention concerne un procédé et un dispositif pour la détermination de la direction du Nord. Procédé caractérisé par les étapes suivantes : a. conversion du signal proportionnel au sinus de l'angle de dérive en une valeur angulaire correspondante phiv k < 90 degrés et mémorisation de cette valeur angulaire; b. vérification si l'angle phiv k est plus petit (cas I) ou plus grand (cas ID qu'un angle limite prescrit phiv G; c. dans le cas I, vérification si l'angle de dérive est plus petit ou plus grand que 90 degrés et déviation de l'axe de rotation du gyroscope vers le nord sur la base de cette vérification; d. dans le cas II, déviation de l'axe de rotation du gyroscope d'un angle égal à l'angle limite phiv G et répétition des étapes précédentes. L'invention est plus particulièrement applicable aux dispositifs de guidage.The present invention relates to a method and a device for determining the direction of North. Process characterized by the following steps: a. converting the signal proportional to the sine of the drift angle into a corresponding angular value phiv k <90 degrees and storing this angular value; b. check if the angle phiv k is smaller (case I) or larger (case ID than a prescribed limit angle phiv G; c. in case I, check if the drift angle is smaller or larger than 90 degrees and deviation of the axis of rotation of the gyroscope to the north based on this check; d. In case II, deviation of the axis of rotation of the gyroscope by an angle equal to the limit angle phiv G and repetition of the preceding steps The invention is more particularly applicable to guidance devices.

FR7702074A 1976-03-05 1977-01-18 METHOD AND DEVICE FOR DETERMINING THE NORTH DIRECTION Granted FR2354538A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762609083 DE2609083C3 (en) 1976-03-05 1976-03-05 Method and device for determining north direction

Publications (2)

Publication Number Publication Date
FR2354538A1 true FR2354538A1 (en) 1978-01-06
FR2354538B1 FR2354538B1 (en) 1983-01-28

Family

ID=5971582

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702074A Granted FR2354538A1 (en) 1976-03-05 1977-01-18 METHOD AND DEVICE FOR DETERMINING THE NORTH DIRECTION

Country Status (3)

Country Link
DE (1) DE2609083C3 (en)
FR (1) FR2354538A1 (en)
GB (1) GB1516074A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL209261A0 (en) * 2010-11-11 2011-01-31 Israel Aerospace Ind Ltd A system and method for north finding

Also Published As

Publication number Publication date
DE2609083B2 (en) 1979-03-08
FR2354538B1 (en) 1983-01-28
GB1516074A (en) 1978-06-28
DE2609083C3 (en) 1979-11-08
DE2609083A1 (en) 1977-09-08

Similar Documents

Publication Publication Date Title
US6173502B1 (en) Magnetically engagable level sensing apparatus and standoff
KR880005466A (en) Positioning method by satellite
CA2279877A1 (en) A navigation/guidance system for a land-based vehicle
DE69636482D1 (en) IMPROVED VEHICLE NAVIGATION SYSTEM AND METHOD THROUGH GPS SPEEDS
DE3773060D1 (en) INERTIA SENSOR ARRANGEMENT.
KR970076403A (en) Car navigation system
FR2354538A1 (en) METHOD AND DEVICE FOR DETERMINING THE NORTH DIRECTION
GB2014309A (en) A Method of Determining the Drift of a Gyro of a Vehicle Position Determining System, and an Apparatus Operable with the Method
FR2440023A1 (en) TOOL CORRECTION DEVICE
JPH03165265A (en) Altitude difference measuring instrument
SE8602528D0 (en) NAVIGATION DEVICE
GB1200029A (en) Doppler-inertial navigation system
RU2030574C1 (en) Method for determination of well drift angle in successive points and gyroscopic inclinometer
JPH058966B2 (en)
US4315434A (en) Pulse width modulation (PWM) with jewel pivot accelerometer
RU2131113C1 (en) Process of gyrocompassing of three-axes gyrostabilizer
RU9521U1 (en) SELF-ORIENTING GYRO-CURRENCY SYSTEM
GB2023294A (en) Navigation device for a surface vehicle
JPS58183511U (en) Unmanned vehicle guidance system
SU1631275A1 (en) Device for determining azimuth
RU1796904C (en) Method of azimuth determination
Ishlinsky et al. Some aspects of the solution of the main problem of inertial navigation
SU1099103A1 (en) Method of determination of angle pickup curvature
GB1101956A (en) Meridian seeking gyroscopic instrument
GB190902077A (en) Improvements in and relating to Instruments for the Determination of Angles, Distances and the like.

Legal Events

Date Code Title Description
ST Notification of lapse