Method and Device for Determining a Route with Points of Interest
First Claim
1. A method for determining routes for a digital road network system stored on a memory medium and comprising a plurality of sections and of positioning indications for these sections, said sections being capable of being arranged in a reconstruction of a road network so as to form road portions and junctions, in which method, on the basis of a main route connecting a starting point, selected from a database, to a finishing point, also selected from a database, said route being constructed from sections and possibly nodes, said sections connecting said nodes, said method furthermore making it possible to reach at least one point of interest (POI) reachable by a plurality of secondary routes intersecting the main route, an optimal POI overall route is determined by performing the following steps:
- a POI overall route is evaluated for each of the potential secondary routes on the basis of at least the following route elements;
a useful portion of main route and a corresponding score, said score being assigned a factor “
k”
, the value of said factor “
k”
lying between 0.1 and 0.7, and preferably between 0.3 and 0.5,the chosen secondary route and a corresponding score;
the POI overall route whose resulting score is optimal is chosen from the set of evaluated POI overall routes.
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Accused Products
Abstract
A method for determining routes for a digital road network system on the basis of a main route connecting a starting point to a finishing point. The method makes it possible to reach a point of interest (POI) reachable by a plurality of secondary routes intersecting the main route. An optimal POI overall route is determined by performing the following steps. First, a POI overall route is evaluated for each of the potential secondary routes on the basis of at least the following route elements: (1) a useful portion of a main route and a corresponding score, the score being assigned a factor “k” lying between 0.1 and 0.7, and (2) the chosen secondary route and a corresponding score. Then, the POI overall route whose resulting score is optimal is chosen.
53 Citations
16 Claims
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1. A method for determining routes for a digital road network system stored on a memory medium and comprising a plurality of sections and of positioning indications for these sections, said sections being capable of being arranged in a reconstruction of a road network so as to form road portions and junctions, in which method, on the basis of a main route connecting a starting point, selected from a database, to a finishing point, also selected from a database, said route being constructed from sections and possibly nodes, said sections connecting said nodes, said method furthermore making it possible to reach at least one point of interest (POI) reachable by a plurality of secondary routes intersecting the main route, an optimal POI overall route is determined by performing the following steps:
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a POI overall route is evaluated for each of the potential secondary routes on the basis of at least the following route elements; a useful portion of main route and a corresponding score, said score being assigned a factor “
k”
, the value of said factor “
k”
lying between 0.1 and 0.7, and preferably between 0.3 and 0.5,the chosen secondary route and a corresponding score; the POI overall route whose resulting score is optimal is chosen from the set of evaluated POI overall routes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. Route calculation device, comprising:
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a data entry unit, intended to receive the data associated with a starting point and those associated with a finishing point; an access to a storage unit comprising a set of elements for modeling a road network; a calculation unit devised to identify a plurality of roads each making it possible to connect the starting and finishing points; evaluation means, making it possible to evaluate, for a plurality of potential secondary routes connecting the main route to at least one point of interest, a POI overall route on the basis of at least the following route elements; a useful portion of main route and a corresponding score, said score being assigned a factor “
k”
, the value of said factor “
k”
lying between 0.1 and 0.7, and preferably between 0.3 and 0.5;the chosen secondary route and a corresponding score; and making it possible to choose, from the set of evaluated POI overall routes, the POI overall route whose resulting score is optimal. - View Dependent Claims (15, 16)
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Specification