On-vehicle map display apparatus, map display method
First Claim
1. An on-vehicle map display apparatus, comprising:
- a map scale setting unit that sets a map scale;
a summary map generation unit that generates a summary map by abbreviating shapes of road links, if a map scale that is less than a predetermined scale is set by the map scale setting unit;
a summary map display control unit that displays the summary map generated by the summary map generation unit upon a display monitor;
a congestion information acquisition unit that acquires a plurality of congestion information for each of the road links;
a combination unit that combines together a plurality of congestion information that satisfies a predetermined combination condition among the congestion information that has been acquired for each of the road links by the congestion information acquisition unit, the plurality of congestion information including congestion information for a first road link and a second road link, the first and second road links being separated from each other by an intervening road link whose congestion information is not combined in the plurality of congestion information; and
a congestion information display control unit that displays the congestion information that has been acquired by the congestion information acquisition unit and combined by the combination unit as superimposed upon the summary map displayed upon the display monitor by the summary map display control unit.
2 Assignments
0 Petitions
Accused Products
Abstract
This on-vehicle map display apparatus comprises a map scale setting unit that sets a map scale, a summary map generation unit that generates a summary map by abbreviating road shapes if a map scale that is less than a predetermined scale is set by the map scale setting unit, a summary map display control unit that displays the summary map generated by the summary map generation unit upon a display monitor, a congestion information acquisition unit that acquires congestion information, and a congestion information display control unit that displays the congestion information acquired by the congestion information acquisition unit as superimposed upon the summary map displayed upon the display monitor by the summary map display control unit.
6 Citations
10 Claims
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1. An on-vehicle map display apparatus, comprising:
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a map scale setting unit that sets a map scale; a summary map generation unit that generates a summary map by abbreviating shapes of road links, if a map scale that is less than a predetermined scale is set by the map scale setting unit; a summary map display control unit that displays the summary map generated by the summary map generation unit upon a display monitor; a congestion information acquisition unit that acquires a plurality of congestion information for each of the road links; a combination unit that combines together a plurality of congestion information that satisfies a predetermined combination condition among the congestion information that has been acquired for each of the road links by the congestion information acquisition unit, the plurality of congestion information including congestion information for a first road link and a second road link, the first and second road links being separated from each other by an intervening road link whose congestion information is not combined in the plurality of congestion information; and a congestion information display control unit that displays the congestion information that has been acquired by the congestion information acquisition unit and combined by the combination unit as superimposed upon the summary map displayed upon the display monitor by the summary map display control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A map display method, comprising:
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a step of an on-vehicle map display apparatus setting a map scale; a step of the on-vehicle map display apparatus generating a summary map by abbreviating shapes of road links, if a map scale that is less than a predetermined scale is set; a step of the on-vehicle map display apparatus displaying the generated summary map upon a display monitor; a step of the on-vehicle map display apparatus acquiring a plurality of congestion information for each of the road links; a step of the on-vehicle map display apparatus combining together a plurality of congestion information that satisfies a predetermined combination condition among the congestion information that has been acquired for each of the road links, the plurality of congestion information including congestion information for a first road link and a second road link, the first and second road links being separated from each other by an intervening road link whose congestion information is not combined in the plurality of congestion information; and a step of the on-vehicle map display apparatus displaying the acquired and combined congestion information as superimposed upon the summary map displayed upon the display monitor.
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Specification