Communications: electrical – Vehicle position indication – Map display
Patent
1994-12-14
1995-11-07
Swarthout, Brent
Communications: electrical
Vehicle position indication
Map display
340988, 364444, 364449, G08G 1123
Patent
active
054650895
ABSTRACT:
A method and an apparatus for guidance of a road condition for providing prospective information concerning a configuration of a forthcoming curve or intersection on a traveling route for ensuring safe driving, particularly in the dark or roads such as winding roads, mountainous roads and so forth. The apparatus includes a detecting circuit for detecting a traveling link among a plurality of links in road information on which a vehicle is traveling; a circuit for detecting an instantaneous position of the vehicle and a traveling direction of the vehicle; and a circuit for calculating a distance from the instantaneous vehicle position to a forthcoming end of the traveling link on the basis of the instantaneous vehicle position and the traveling direction. In addition, the apparatus includes a circuit for detecting a number of intersecting links connected to the forthcoming end of the traveling link; a circuit for calculating an intersecting angle at the forthcoming end of the traveling link with the intersecting links, and a circuit for displaying information concerning curvature at the intersection of the links.
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Patent Abstracts of Japan, vol. 12, No. 499; p. 807; Dec. 27, 1993; & JP-A-63 208 713 (Navigation System; Sanyo Electric Co.) Aug. 30, 1988 (abstract only).
Ichimura Atsushi
Nakatani Yasuhiro
Okano Yoichi
Takeuchi Hiroshi
Tanaka Toshio
Fujitsu Ten Limited
Swarthout Brent
Tong Nina
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