Title:
MAP-MATCHING GOLF NAVIGATION SYSTEM
Document Type and Number:
WIPO Patent Application WO2001061271
Kind Code:
A3
Abstract:
A method for calibrating and updating a golf course position, yardage and measurement system for golf carts that utilize dead reckoning navigation (DRN) (250), to avoid gradual buildup of error from components of the DRN system as the golf cart is being driven on the course for the purpose of aiding golfers in playing the course by displaying distance measurements between the cart and various features of the course. In one embodiment, the method includes storing a map of the course golf cart path (255) in the database of the cart navigation system, determining from a comparison of the golf cart position in the DRN system (250) and the stored golf cart path (255) whether the cart is on the cart path during at least part of the play of each hole; and, if so, calibrating and updating the DRN system (257) according to a correction of error in the indicated position of an icon representing the golf cart relative to the cart path on a display screen in the cart to restore the icon to the cart path.
Inventors:
COFFEE JOHN R
Application Number:
PCT/US2001/005224
Publication Date:
December 20, 2001
Filing Date:
February 15, 2001
Export Citation:
Assignee:
PROLINK INC (US)
International Classes:
G01C21/30; (IPC1-7): G06G7/48
Foreign References:
| US5928309A | 1999-07-27 | |||
| US5524081A | 1996-06-04 | |||
| US5563786A | 1996-10-08 | |||
| US5416712A | 1995-05-16 | |||
| US5873797A | 1999-02-23 |
Other References:
AONO ET AL.: "Position estimation using GPS and dead reckoning", PROC. 1996 IEEE/SICE/RSJ INT. CONF. ON MULTISENSOR FUSION AND INTEGRATION FOR INTELLIGENT SYSTEMS, December 1996 (1996-12-01), pages 533 - 540, XP002942643
ROGERS R.M.: "Improved heading using dual speed sensors for angular rate and odometry in land navigation", IEEE POSITION LOCATION AND NAVIGATION SYMP., 20 April 1998 (1998-04-20) - 23 April 1998 (1998-04-23), pages 177 - 184, XP002942644
KIM ET AL.: "Compensation of gyroscope errors and GPS/DR integration", 1996 SYMP. POSITION LOCATION AND NAVIGATION, April 1996 (1996-04-01), pages 464 - 470, XP002942646
ABBOTT ET AL.: "Land-vehicle navigation using GPS", PROC. IEEE, vol. 87, no. 1, January 1999 (1999-01-01), pages 145 - 162, XP002942645
ROGERS R.M.: "Improved heading using dual speed sensors for angular rate and odometry in land navigation", IEEE POSITION LOCATION AND NAVIGATION SYMP., 20 April 1998 (1998-04-20) - 23 April 1998 (1998-04-23), pages 177 - 184, XP002942644
KIM ET AL.: "Compensation of gyroscope errors and GPS/DR integration", 1996 SYMP. POSITION LOCATION AND NAVIGATION, April 1996 (1996-04-01), pages 464 - 470, XP002942646
ABBOTT ET AL.: "Land-vehicle navigation using GPS", PROC. IEEE, vol. 87, no. 1, January 1999 (1999-01-01), pages 145 - 162, XP002942645
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