IL156336A0 - Monitoring accuracy of an electronic compass - Google Patents
Monitoring accuracy of an electronic compassInfo
- Publication number
- IL156336A0 IL156336A0 IL15633601A IL15633601A IL156336A0 IL 156336 A0 IL156336 A0 IL 156336A0 IL 15633601 A IL15633601 A IL 15633601A IL 15633601 A IL15633601 A IL 15633601A IL 156336 A0 IL156336 A0 IL 156336A0
- Authority
- IL
- Israel
- Prior art keywords
- values
- electronic compass
- accuracy
- magnetic field
- compass
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/38—Testing, calibrating, or compensating of compasses
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/731,516 US6539639B2 (en) | 2000-12-06 | 2000-12-06 | Monitoring accuracy of an electronic compass |
PCT/US2001/047192 WO2002046695A2 (en) | 2000-12-06 | 2001-12-04 | Monitoring accuracy of an electronic compass |
Publications (1)
Publication Number | Publication Date |
---|---|
IL156336A0 true IL156336A0 (en) | 2004-01-04 |
Family
ID=24939845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL15633601A IL156336A0 (en) | 2000-12-06 | 2001-12-04 | Monitoring accuracy of an electronic compass |
Country Status (9)
Country | Link |
---|---|
US (1) | US6539639B2 (xx) |
EP (1) | EP1340042B1 (xx) |
JP (1) | JP2004525348A (xx) |
AT (1) | ATE457444T1 (xx) |
AU (1) | AU2002226014A1 (xx) |
CA (1) | CA2431564A1 (xx) |
DE (1) | DE60141285D1 (xx) |
IL (1) | IL156336A0 (xx) |
WO (1) | WO2002046695A2 (xx) |
Families Citing this family (61)
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KR100533106B1 (ko) * | 2002-08-06 | 2005-12-05 | 삼성전자주식회사 | 지자계 센서의 자세 오차 보상장치 및 방법 |
JP4083557B2 (ja) * | 2002-12-11 | 2008-04-30 | 三菱電機株式会社 | 方位指示装置 |
JP4381161B2 (ja) * | 2003-03-05 | 2009-12-09 | シチズンホールディングス株式会社 | 方位測定装置、方位測定方法、および方位測定プログラム |
JP4381162B2 (ja) * | 2003-03-27 | 2009-12-09 | シチズンホールディングス株式会社 | 方位測定装置、方位測定方法、および方位測定プログラム |
US7266446B1 (en) * | 2003-05-13 | 2007-09-04 | Pelosi Michael J | Helmet mounted tracking system and method |
US7058499B2 (en) * | 2003-05-20 | 2006-06-06 | Kds Controls | Brake control system and method |
JP2005043103A (ja) * | 2003-07-23 | 2005-02-17 | Alps Electric Co Ltd | 磁気コンパス |
US6836971B1 (en) * | 2003-07-30 | 2005-01-04 | Honeywell International Inc. | System for using a 2-axis magnetic sensor for a 3-axis compass solution |
JP2005114489A (ja) * | 2003-10-06 | 2005-04-28 | Citizen Electronics Co Ltd | 磁気方位検出装置 |
US6962001B2 (en) * | 2003-11-10 | 2005-11-08 | The Research Institute For Electric And Magnetic Materials | Magnetic north detecting device and magnetic north detecting method |
KR100565794B1 (ko) * | 2003-12-30 | 2006-03-29 | 삼성전자주식회사 | 기울기의 영향을 보상하여 방위각을 연산하는 지자기센서, 및 그 연산방법 |
KR100574506B1 (ko) * | 2004-02-26 | 2006-04-27 | 삼성전자주식회사 | 연산된 방위각의 오류여부를 표시하는 지자기센서 및 그방위각측정방법 |
US6877237B1 (en) | 2004-03-05 | 2005-04-12 | Honeywell International Inc. | Method and system for acquiring calibration data for an electronic compass |
CH697492B1 (de) * | 2004-04-17 | 2008-11-14 | Vectronix Ag | Verfahren zum Schätzen der Genauigkeit azimutaler Ausrichtungen, Verfahren zum Bereitstellen einer azimutalen Ausrichtung eines tragbaren Zielgeräts und eines geschätzten Wertes deren Genauigkeit und tragbares Zielgerät. |
CN100541125C (zh) * | 2004-08-10 | 2009-09-16 | 雅马哈株式会社 | 方位数据生成方法、方位传感器单元以及便携式电子装置 |
JP2006234581A (ja) * | 2005-02-24 | 2006-09-07 | Aichi Micro Intelligent Corp | 電子コンパス及び方位測定方法 |
US7436184B2 (en) * | 2005-03-15 | 2008-10-14 | Pathfinder Energy Services, Inc. | Well logging apparatus for obtaining azimuthally sensitive formation resistivity measurements |
US7328105B1 (en) | 2005-05-04 | 2008-02-05 | Yazaki North America, Inc. | Electronic compass and related heading filter method |
US20070088496A1 (en) * | 2005-07-20 | 2007-04-19 | Atair Aerospace, Inc. | Automatic heading and reference system |
US7414405B2 (en) * | 2005-08-02 | 2008-08-19 | Pathfinder Energy Services, Inc. | Measurement tool for obtaining tool face on a rotating drill collar |
KR100653081B1 (ko) * | 2005-11-25 | 2006-12-04 | 삼성전자주식회사 | 지자기 센서 및 그 방위각 산출 방법 |
US20090132198A1 (en) * | 2006-02-27 | 2009-05-21 | Kyocera Corporation | Mobile Electronic Apparatus and Method for Processing Bearing of Mobile Electronic Apparatus |
US7451549B1 (en) * | 2006-08-09 | 2008-11-18 | Pni Corporation | Automatic calibration of a three-axis magnetic compass |
WO2008122905A1 (en) * | 2007-04-04 | 2008-10-16 | Nxp B.V. | Sensor compensation in orientation sensing system |
US20080309156A1 (en) * | 2007-06-15 | 2008-12-18 | Kds Controls | Brake control system and method |
EP2028504B1 (en) * | 2007-08-23 | 2016-04-13 | STMicroelectronics Srl | Method and device for calibrating a magnetic sensor |
JP5266754B2 (ja) * | 2007-12-28 | 2013-08-21 | ヤマハ株式会社 | 磁気データ処理装置、磁気データ処理方法および磁気データ処理プログラム |
US20090259424A1 (en) * | 2008-03-06 | 2009-10-15 | Texas Instruments Incorporated | Parameter estimation for accelerometers, processes, circuits, devices and systems |
US20100022366A1 (en) * | 2008-05-28 | 2010-01-28 | Ken Hoover | Wrist, elbow, shoulder, and balance training device for angler/athletes |
US9526958B2 (en) * | 2012-01-10 | 2016-12-27 | Jack W. Peterson | Digital compass ball marker |
US8898034B2 (en) * | 2009-06-03 | 2014-11-25 | Apple Inc. | Automatically identifying geographic direction |
US8437970B2 (en) * | 2009-06-05 | 2013-05-07 | Apple Inc. | Restoring and storing magnetometer calibration data |
US7891103B2 (en) * | 2009-06-05 | 2011-02-22 | Apple Inc. | Magnetometer accuracy and use |
US8239153B2 (en) | 2009-06-05 | 2012-08-07 | Apple Inc. | Dynamic compass calibration in a portable device |
US7921572B2 (en) | 2009-06-05 | 2011-04-12 | Apple Inc. | Accuracy indications for an electronic compass in a portable device |
US8370097B2 (en) * | 2009-06-05 | 2013-02-05 | Apple Inc. | Calibration techniques for an electronic compass in portable device |
CN101629823B (zh) * | 2009-07-27 | 2011-02-09 | 赵柯 | 磁罗经自差校正方法 |
US9116002B2 (en) * | 2009-08-27 | 2015-08-25 | Apple Inc. | Context determination to assist location determination accuracy |
US8626465B2 (en) | 2010-03-30 | 2014-01-07 | Apple Inc. | Calibrating sensor measurements on mobile devices |
US8531180B2 (en) | 2010-03-30 | 2013-09-10 | Apple Inc. | Determining heading using magnetometer data and angular rate data |
EP2556384B1 (en) * | 2010-04-07 | 2017-09-06 | L-3 Communications Avionics Systems, Inc. | Method for magnetometer installation |
US8374816B2 (en) * | 2010-06-08 | 2013-02-12 | Honeywell International Inc. | Automatic data collection algorithm for 3D magnetic field calibration with reduced memory requirements |
US8690426B2 (en) * | 2010-06-14 | 2014-04-08 | General Electric Company | Position sensing device for a portable detection device |
US8321161B1 (en) * | 2010-09-17 | 2012-11-27 | The United States of America as represented by the Secretarty of the Navy | Autonomous magnetic measurement system |
US8717009B2 (en) | 2010-10-06 | 2014-05-06 | Apple Inc. | Magnetometer calibration |
EP2447667B1 (en) | 2010-10-26 | 2015-11-11 | BlackBerry Limited | System and method for calibrating a magnetometer according to a quality threshold |
US8676528B2 (en) | 2011-02-08 | 2014-03-18 | Blackberry Limited | System and method for calibrating an accelerometer |
US8615253B2 (en) | 2011-06-03 | 2013-12-24 | Apple Inc. | State estimation using motion context and multiple input observation types |
US8843338B2 (en) | 2011-07-29 | 2014-09-23 | Nokia Corporation | Processing Data for Calibration |
US9046365B2 (en) * | 2011-10-27 | 2015-06-02 | Apple Inc. | Electronic devices with magnetic field compensating conductive traces |
US20150375084A1 (en) * | 2012-01-10 | 2015-12-31 | Jack W. Peterson | Digital compass ball marker |
WO2013188776A1 (en) * | 2012-06-14 | 2013-12-19 | Yei Corporation | Determining and correcting error of positional vector-valued sensors using a fixed angle calibration process |
US9423252B2 (en) | 2012-09-11 | 2016-08-23 | Apple Inc. | Using clustering techniques to improve magnetometer bias estimation |
US9151610B2 (en) | 2013-06-08 | 2015-10-06 | Apple Inc. | Validating calibrated magnetometer data |
US10302429B2 (en) | 2014-02-07 | 2019-05-28 | Conocophillips Company | Seismic streamer shape correction using derived compensated magnetic fields |
EP2930466B1 (de) | 2014-04-09 | 2018-07-18 | Safran Vectronix AG | Handhaltbares Beobachtungsgerät mit einem digitalen Magnetkompass |
US10025472B2 (en) | 2014-06-01 | 2018-07-17 | Apple Inc. | Method and apparatus for displaying data regarding a device's traversal through a region |
CN104913777A (zh) * | 2015-05-15 | 2015-09-16 | 上海集成电路研发中心有限公司 | 一种地磁传感器应用系统的误差补偿算法 |
EP3115738B1 (de) | 2015-07-06 | 2020-09-02 | Safran Vectronix AG | Optoelektronisches messgerät und verfahren zur störungserkennung |
US20220244323A9 (en) * | 2018-06-01 | 2022-08-04 | Lexmark International, Inc. | Magnetic Sensor Array Device Optimizations and Hybrid Magnetic Camera |
CN117537792B (zh) * | 2024-01-03 | 2024-04-30 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | 电子罗盘自适应方位角矫正方法 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4109199A (en) * | 1977-10-17 | 1978-08-22 | The United States Of America As Represented By The Secretary Of The Navy | Three axis magnetometer calibration checking method and apparatus |
FR2484079A1 (fr) | 1980-06-05 | 1981-12-11 | Crouzet Sa | Procede de compensation des perturbations magnetiques dans la determination d'un cap magnetique, et dispositif pour la mise en oeuvre de ce procede |
JPS5784310A (en) * | 1980-11-13 | 1982-05-26 | Alps Electric Co Ltd | Direction sensing means |
JPS57127807A (en) * | 1981-02-02 | 1982-08-09 | Toyota Motor Corp | Method and device for correcting output for azimuth detector |
US4672565A (en) | 1981-03-10 | 1987-06-09 | Nippon Soken, Inc. | Direction detecting system for vehicles |
JPS59155714A (ja) | 1982-10-12 | 1984-09-04 | ロケ マナ リサーチ リミテッド | 輸送機関用電子コンパス |
US4593359A (en) * | 1983-06-24 | 1986-06-03 | Ilan Sadeh | Vehicle navigation system |
US4797841A (en) | 1983-11-28 | 1989-01-10 | Magnavox Government And Industrial Electronics Company | Method and apparatus for automatic calibration of magnetic compass |
DE3345818A1 (de) * | 1983-12-17 | 1985-06-27 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zur ermittlung von stoerfeldern in fahrzeugen mit einem elektronischen kompass |
DK197185A (da) * | 1984-05-09 | 1985-11-10 | Teleco Oilfield Services Inc | Fremgangsmaade til detektering og korrektion af magnetisk interferens ved kontrol af et borehul |
EP0214817B1 (en) | 1985-09-03 | 1991-12-04 | British Aerospace Public Limited Company | Calibration of magnetic compasses |
JPS62255814A (ja) * | 1986-04-28 | 1987-11-07 | Nec Home Electronics Ltd | 車両方位誤差補正方法 |
DE3644681A1 (de) * | 1986-12-30 | 1988-07-14 | Bosch Gmbh Robert | Navigationsverfahren fuer fahrzeuge mit elektronischem kompass |
GB2213937B (en) * | 1987-12-17 | 1992-01-22 | Plessey Co Plc | Navigation compass calibration |
US5046031A (en) * | 1989-02-06 | 1991-09-03 | Magnavox Government And Industrial Electronics Company | Method and apparatus for automatic flux-gate compass calibration |
IL92239A (en) * | 1989-11-07 | 1993-04-04 | Israel State | Magnetic compass |
JPH0833301B2 (ja) * | 1990-04-12 | 1996-03-29 | 松下電器産業株式会社 | 地磁気センサの着磁補正法 |
JPH04244913A (ja) * | 1991-01-31 | 1992-09-01 | Mazda Motor Corp | 車両用方位検出装置 |
US5287295A (en) * | 1991-05-30 | 1994-02-15 | Motorola | Method and apparatus for calibrating an electronic compass to account for alignment errors in the compass windings |
DE4124002A1 (de) * | 1991-07-19 | 1993-01-21 | Uhlig Hans Ruediger | Vorrichtung zur kompensierung der dynamischen fehler von elektronischen magnetkompassen |
US5828984A (en) | 1991-12-27 | 1998-10-27 | Chrysler Corporation | Data processing method for an electronic compass system |
JPH0735974B2 (ja) * | 1992-01-08 | 1995-04-19 | 日産自動車株式会社 | 車両用方位計 |
DE19609762C1 (de) * | 1996-03-13 | 1997-04-03 | Leica Ag | Verfahren zur Bestimmung der Richtung des Erdmagnetfeldes |
US5946813A (en) * | 1997-02-10 | 1999-09-07 | Leica Geosystems Ag | Method and device for determining correction parameters |
US6513252B1 (en) * | 1999-04-08 | 2003-02-04 | Donnelly Corporation | Vehicle compass compensation |
-
2000
- 2000-12-06 US US09/731,516 patent/US6539639B2/en not_active Expired - Lifetime
-
2001
- 2001-12-04 AU AU2002226014A patent/AU2002226014A1/en not_active Abandoned
- 2001-12-04 JP JP2002548388A patent/JP2004525348A/ja not_active Withdrawn
- 2001-12-04 IL IL15633601A patent/IL156336A0/xx unknown
- 2001-12-04 CA CA002431564A patent/CA2431564A1/en not_active Abandoned
- 2001-12-04 EP EP01995434A patent/EP1340042B1/en not_active Expired - Lifetime
- 2001-12-04 WO PCT/US2001/047192 patent/WO2002046695A2/en active Application Filing
- 2001-12-04 AT AT01995434T patent/ATE457444T1/de not_active IP Right Cessation
- 2001-12-04 DE DE60141285T patent/DE60141285D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE457444T1 (de) | 2010-02-15 |
AU2002226014A1 (en) | 2002-06-18 |
EP1340042B1 (en) | 2010-02-10 |
US20020092188A1 (en) | 2002-07-18 |
WO2002046695A2 (en) | 2002-06-13 |
CA2431564A1 (en) | 2002-06-13 |
DE60141285D1 (de) | 2010-03-25 |
JP2004525348A (ja) | 2004-08-19 |
EP1340042A2 (en) | 2003-09-03 |
WO2002046695A3 (en) | 2003-01-09 |
US6539639B2 (en) | 2003-04-01 |
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