Route guidance information generating device and method, and navigation system
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Abstract
Route guidance information capable of displaying a route can be generated in an easy-to-understand, user-friendly manner even on a small screen of a navigation system. To generate such information, route guidance information at plural guide points on the route between plural points is so constructed that each piece of route guidance information will fit in the area of one screen. Display positions of the route guidance information are brought into one-to-one correspondence with numeric keys in ascending numeric order, and into correspondence with one another through hyperlinks not accompanied by calling of another file. Each file is divided so that each piece will not exceed the file size or maximum value of the numeric keys.
68 Citations
28 Claims
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1-6. -6. (cancelled).
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7. A route guidance information generating device comprising:
- display means;
map storage means storing a road network;
input means for entering plural points;
search means for taking in from said input means information obtained from said map storage means to calculate a route between plural points;
route guidance element generating means for generating route guidance elements for route guidance on the basis of the route result calculated by said search means; and
route guidance information generating means for generating route guidance information on the basis of the route guidance elements generated by said route guidance element generating means, wherein said route guidance information generating means generates route guidance information at plural guide points on the route between plural points as plural pieces of ordered information or information capable of fitting in one-screen display space of said display means. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- display means;
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22-25. -25. (cancelled)
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26. A navigation device comprising:
- at least map storage means for storing a road network;
input means for entering plural points;
search means for calculating a route between the plural points inputted by said input means;
route guidance element generating means for generating route guidance elements for route guidance on the basis of the route result calculated by said search means;
route guidance information generating means for generating route guidance information on the basis of the route guidance elements generated by said route guidance element generating means; and
present position calculating means for calculating the present position of its own device, wherein a display screen is displayed or voice guidance is performed through a hyperlink according the present position information on the basis of the route guidance information generated.
- at least map storage means for storing a road network;
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27. An information generating method comprising:
- a route searching step of setting a starting place and a destination, inputting through input means information obtained from map storage means, and calculating a route between plural points;
a step of generating route guidance elements for route guidance on the basis of the route result calculated in said route searching step;
a step of generating route guidance information at plural guide points on the route between the plural points on the basis of the route guidance elements generated; and
a step of displaying through display means the route guidance information generated, wherein display positions of plural pieces of route guidance information in the same file are brought into one-to-one correspondence with numeric keys so that the route guidance information will be serially displayed, and into correspondence with one another through hyperlinks not accompanied by calling of another file.
- a route searching step of setting a starting place and a destination, inputting through input means information obtained from map storage means, and calculating a route between plural points;
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28-61. -61. (cancelled).
Specification