CA2116242A1 - Combined relative and absolute positioning method and apparatus - Google Patents

Combined relative and absolute positioning method and apparatus

Info

Publication number
CA2116242A1
CA2116242A1 CA002116242A CA2116242A CA2116242A1 CA 2116242 A1 CA2116242 A1 CA 2116242A1 CA 002116242 A CA002116242 A CA 002116242A CA 2116242 A CA2116242 A CA 2116242A CA 2116242 A1 CA2116242 A1 CA 2116242A1
Authority
CA
Canada
Prior art keywords
rps
aps
loran
gps
absolute positioning
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
CA002116242A
Other languages
French (fr)
Other versions
CA2116242C (en
Inventor
Darrell L. Mathis
Richard F. Poppen
Kenneth A. Milnes
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.)
TomTom North America Inc
Original Assignee
Darrell L. Mathis
Richard F. Poppen
Kenneth A. Milnes
Etak, Inc.
Tele Atlas North America, Inc.
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 Darrell L. Mathis, Richard F. Poppen, Kenneth A. Milnes, Etak, Inc., Tele Atlas North America, Inc. filed Critical Darrell L. Mathis
Publication of CA2116242A1 publication Critical patent/CA2116242A1/en
Application granted granted Critical
Publication of CA2116242C publication Critical patent/CA2116242C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/28—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network with correlation of data from several navigational instruments
    • G01C21/30—Map- or contour-matching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
    • G01S19/49—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system whereby the further system is an inertial position system, e.g. loosely-coupled

Abstract

A navigation system (1) comprising a rela-tive positioning system (RPS) (2) with dead reckon-ing and map matching and an absolute positioning system (APS) (3) is provided and operated in such a manner that APS position information is used for updating RPS (2) position and contour of equal probability (CEP) information as required. The APS (3) may comprise a Loran-C or a global posi-tioning system (GPS). Different criteria are used for resetting the RPS (2) depending on whether or not the navigation system comprises a Loran-C or a GPS due to the different levels of precision of the Loran-C and the GPS. When the RPS (2) is reset or updated, it is updated to the current APS (3) posi-tion with its offset, if any. Its contour of equal probability (CEP) may also be adjusted.
CA002116242A 1991-08-30 1992-07-31 Combined relative and absolute positioning method and apparatus Expired - Lifetime CA2116242C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/753,190 1991-08-30
US07/753,190 US5311195A (en) 1991-08-30 1991-08-30 Combined relative and absolute positioning method and apparatus
PCT/US1992/006442 WO1993005587A1 (en) 1991-08-30 1992-07-31 Combined relative and absolute positioning method and apparatus

Publications (2)

Publication Number Publication Date
CA2116242A1 true CA2116242A1 (en) 1993-03-18
CA2116242C CA2116242C (en) 2002-09-24

Family

ID=25029559

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002116242A Expired - Lifetime CA2116242C (en) 1991-08-30 1992-07-31 Combined relative and absolute positioning method and apparatus

Country Status (10)

Country Link
US (1) US5311195A (en)
EP (1) EP0601037B1 (en)
JP (1) JP3273439B2 (en)
AT (1) ATE193126T1 (en)
AU (1) AU653257B2 (en)
CA (1) CA2116242C (en)
DE (1) DE69231061T2 (en)
HK (1) HK1014812A1 (en)
MD (1) MD960292A (en)
WO (1) WO1993005587A1 (en)

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DE69231061T2 (en) 2001-02-01
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JP3273439B2 (en) 2002-04-08
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US5311195A (en) 1994-05-10
EP0601037A4 (en) 1996-07-17
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AU2492692A (en) 1993-04-05
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MD960292A (en) 1998-11-30

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