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1. WO2002001244 - TRACK MODEL CONSTRAINT FOR GPS POSITION

Publication Number WO/2002/001244
Publication Date 03.01.2002
International Application No. PCT/US2001/020009
International Filing Date 22.06.2001
Chapter 2 Demand Filed 15.01.2002
IPC
G01C 21/28 2006.1
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
26specially adapted for navigation in a road network
28with correlation of data from several navigational instruments
G01S 1/00 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
G01S 5/00 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
G01S 5/14 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
14Determining absolute distances from a plurality of spaced points of known location
CPC
G01C 21/28
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
26specially adapted for navigation in a road network
28with correlation of data from several navigational instruments
G01S 19/04
GPHYSICS
01MEASURING; TESTING
SRADIO 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
19Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
03Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
04providing carrier phase data
G01S 19/50
GPHYSICS
01MEASURING; TESTING
SRADIO 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
19Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
39the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
42Determining position
50whereby the position solution is constrained to lie upon a particular curve or surface, e.g. for locomotives on railway tracks
G01S 5/0027
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
0009Transmission of position information to remote stations
0018Transmission from mobile station to base station
0027of actual mobile position, i.e. position determined on mobile
G01S 5/0036
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
0009Transmission of position information to remote stations
0018Transmission from mobile station to base station
0036of measured values, i.e. measurement on mobile and position calculation on base station
G01S 5/0054
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
0009Transmission of position information to remote stations
0045Transmission from base station to mobile station
0054of actual mobile position, i.e. position calculation on base station
Applicants
  • SPORTVISION, INC. [US]/[US]
Inventors
  • FORD, Thomas, J.
  • FENTON, Patrick, C.
  • MCGUFFIN, James, O.
  • HONEY, Stanley, K.
Agents
  • MAGEN, Burt
Priority Data
60/213,68423.06.2000US
60/295,31001.06.2001US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) TRACK MODEL CONSTRAINT FOR GPS POSITION
(FR) MODELE DE POURSUITE PERMETTANT DE DELIMITER UNE POSITION GPS
Abstract
(EN) A track model is created for use with a GPS receiver. In one embodiment, the track model is a set of planar surfaces [Fig. 1, item 170] which approximate the contiguous surface on which navigation takes place [item 160]. The GPS receiver searches for an appropriate planar surface associated with its approximate position [item 166]. Having found the appropriate planar surface, the GPS receiver constrains its position using the planar surface associated with its approximate position. Using the track model improves the accuracy of the computed position at the time and improves the ambiguity estimation process so that positions with greatly improved accuracy are available sooner.
(FR) Selon cette invention, on crée un modèle de poursuite devant être utilisé avec un récepteur GPS. Dans un premier mode de réalisation, le modèle de poursuite est un ensemble de surfaces planaires qui ressemblent à la surface contiguë sur laquelle s'effectue la navigation. Le récepteur GPS recherche une surface planaire appropriée associée à sa position approximative. Lorsqu'il trouve la surface planaire appropriée, le récepteur GPS délimite sa position en faisant intervenir la surface planaire associée à la position approximative. L'utilisation du modèle de poursuite multiplie la précision de la position calculée à ce moment là et améliore le processus d'estimation de l'ambiguïté de manière à obtenir des positions très précises plus rapidement.
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