CA2169707A1 - Recognition of Geographical Region Types in a Map Database - Google Patents

Recognition of Geographical Region Types in a Map Database

Info

Publication number
CA2169707A1
CA2169707A1 CA2169707A CA2169707A CA2169707A1 CA 2169707 A1 CA2169707 A1 CA 2169707A1 CA 2169707 A CA2169707 A CA 2169707A CA 2169707 A CA2169707 A CA 2169707A CA 2169707 A1 CA2169707 A1 CA 2169707A1
Authority
CA
Canada
Prior art keywords
geographical region
map database
recognition
navigation
algorithm
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
CA2169707A
Other languages
French (fr)
Other versions
CA2169707C (en
Inventor
Haruhisa Tamai
Simon Desai
Laura L. White
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 International BV
Original Assignee
Zexel Corp
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 Zexel Corp filed Critical Zexel Corp
Publication of CA2169707A1 publication Critical patent/CA2169707A1/en
Application granted granted Critical
Publication of CA2169707C publication Critical patent/CA2169707C/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
    • G01C21/34—Route searching; Route guidance
    • G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
    • G01C21/3461—Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types, segments such as motorways, toll roads, ferries

Abstract

A method for navigating with a vehicle navigation system using recognition of geographical region types in a map database. The system's map database stores information representative of a plurality of geographical region types. A
geographical region type of a geographical region in which the navigation algorithm is operating is determined. At least one parameter related to the navigation algorithm is then set to correspond to the geographical region type. Navigation is performed using the navigation algorithm. Throughout the operation of the navigation algorithm, the system repeatedly determines whether the geographical region type has changed, and if so, changes the algorithm parameter(s) to correspond to the new geographical region type.
CA002169707A 1995-06-07 1996-02-16 Recognition of geographical region types in a map database Expired - Lifetime CA2169707C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/480,759 1995-06-07
US08/480,759 US5731978A (en) 1995-06-07 1995-06-07 Method and apparatus for enhancing vehicle navigation through recognition of geographical region types

Publications (2)

Publication Number Publication Date
CA2169707A1 true CA2169707A1 (en) 1996-12-08
CA2169707C CA2169707C (en) 1999-05-11

Family

ID=23909251

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002169707A Expired - Lifetime CA2169707C (en) 1995-06-07 1996-02-16 Recognition of geographical region types in a map database

Country Status (4)

Country Link
US (1) US5731978A (en)
EP (1) EP0747671A3 (en)
JP (1) JPH08335033A (en)
CA (1) CA2169707C (en)

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Also Published As

Publication number Publication date
CA2169707C (en) 1999-05-11
US5731978A (en) 1998-03-24
EP0747671A3 (en) 1999-02-10
EP0747671A2 (en) 1996-12-11
JPH08335033A (en) 1996-12-17

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Effective date: 20160216