Navigation system and method for operating it
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Abstract
The invention relates to a navigation system for ascertaining qualified special destinations, having a database, which stores transport route nodes and route sections connecting the latter and properties thereof, having a route computation device and also having a memory device, wherein special destinations stored in the database are each linked to one or more connecting nodes, particularly motorway exits, and wherein each special destination has, for each connecting node linked thereto, at least one associated first total route, connecting the special destination and the connecting node to one another, and an associated total route length and wherein, at least in the event of the first total route having a use restriction, the special destination and the connecting node also have at least one associated second total route that, at least for one restriction parameter, has lesser use restrictions.
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Citations
29 Claims
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1-14. -14. (canceled)
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15. A navigation system for ascertaining qualified special destinations, the navigation system comprising:
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a database (1) storing; (a) a plurality of traffic nodes (8, 9, 10, 11, 12, 43, 44, 45, 46, 47, 48), (b) path sections (25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42) connecting said traffic nodes, (c) properties of the traffic nodes, and (d) special destinations (16, 17, 18, 19, 20, 21, 22, 23, 48) linked, in each case, to one or more of the traffic nodes in the form of connecting nodes (10, 11, 12, 43); and a route computation device (2), the route computation device (2) being configured to; assign each special destination, with respect to each connecting node that is linked thereto, at least one total path length of a first total path connecting the special destination and the connecting node, and at least in a case where the first total path has a use limitation, assign the special destination and the connecting node at least the total path length of a second total path that has lower use limitations at least with respect to one limitation parameter. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification