CA2288411A1 - Position location system - Google Patents

Position location system Download PDF

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Publication number
CA2288411A1
CA2288411A1 CA002288411A CA2288411A CA2288411A1 CA 2288411 A1 CA2288411 A1 CA 2288411A1 CA 002288411 A CA002288411 A CA 002288411A CA 2288411 A CA2288411 A CA 2288411A CA 2288411 A1 CA2288411 A1 CA 2288411A1
Authority
CA
Canada
Prior art keywords
sensor
location system
magnetic fields
position location
inappropriate
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
CA002288411A
Other languages
French (fr)
Other versions
CA2288411C (en
Inventor
John Stuart Bladen
Alan Patrick Anderson
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.)
British Telecommunications PLC
Original Assignee
Individual
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
Priority claimed from GB939301569A external-priority patent/GB9301569D0/en
Application filed by Individual filed Critical Individual
Priority to CA002358682A priority Critical patent/CA2358682A1/en
Priority claimed from CA002142338A external-priority patent/CA2142338C/en
Publication of CA2288411A1 publication Critical patent/CA2288411A1/en
Application granted granted Critical
Publication of CA2288411C publication Critical patent/CA2288411C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Methods and apparatus are provided for locating the position, preferably in three dimensions, of a sensor by generating magnetic fields which are detected at the sensor. The magnetic fields are generated from a plurality of locations and, in one embodiment of the invention, enable both the orientation and location of a single coil sensor to be determined. The present invention thus finds application in many areas where the use of prior art sensors comprising two or more mutually perpendicular coils is inappropriate.
CA002288411A 1992-08-14 1993-08-16 Position location system Expired - Lifetime CA2288411C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002358682A CA2358682A1 (en) 1992-08-14 1993-08-16 Position location system

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP92307492 1992-08-14
EP92307492.6 1992-08-14
GB9301569.1 1993-01-27
GB939301569A GB9301569D0 (en) 1993-01-27 1993-01-27 Position location system
CA002142338A CA2142338C (en) 1992-08-14 1993-08-16 Position location system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002142338A Division CA2142338C (en) 1992-08-14 1993-08-16 Position location system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002358682A Division CA2358682A1 (en) 1992-08-14 1993-08-16 Position location system

Publications (2)

Publication Number Publication Date
CA2288411A1 true CA2288411A1 (en) 1994-03-03
CA2288411C CA2288411C (en) 2001-10-16

Family

ID=27169956

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002288411A Expired - Lifetime CA2288411C (en) 1992-08-14 1993-08-16 Position location system

Country Status (1)

Country Link
CA (1) CA2288411C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2014201513B2 (en) * 2013-03-14 2015-05-21 Industrea Mining Technology Pty Ltd Mining machine position tracking and mapping
WO2015143500A1 (en) * 2014-03-27 2015-10-01 Orica International Pte Ltd Apparatus, system and method for remote localisation of a marker using magnetic fields.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2115776T3 (en) 1992-08-14 1998-07-01 British Telecomm POSITION LOCATION SYSTEM.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2014201513B2 (en) * 2013-03-14 2015-05-21 Industrea Mining Technology Pty Ltd Mining machine position tracking and mapping
WO2015143500A1 (en) * 2014-03-27 2015-10-01 Orica International Pte Ltd Apparatus, system and method for remote localisation of a marker using magnetic fields.
US10502855B2 (en) 2014-03-27 2019-12-10 Orica International Pte Ltd Apparatus, system and method for remote localisation of a marker using magnetic fields
AU2015234707B2 (en) * 2014-03-27 2020-08-06 Orica International Pte Ltd Apparatus, system and method for remote localisation of a marker using magnetic fields.

Also Published As

Publication number Publication date
CA2288411C (en) 2001-10-16

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