Pedestrian Navigation System, Information Delivery Server, and Program
First Claim
1. A pedestrian navigation system comprising:
- an information delivery server; and
a portable terminal connected to said information delivery server via a network;
said information delivery server comprising;
a map database that stores nodes and links, including paths constituting intersections, and cost of each link as data;
a path seeking section;
an intersection path judging section that, on the basis of combinations of link lengths of passage patterns composed of multiple links having differing lengths, detects a passage path for an intersection from the guidance paths found by said path seeking section;
a guidance point determining section that determines a guidance point for path guidance;
a guidance data creating section that determines a guidance pattern for path guidance that is suited to the guidance point; and
a data delivery section that delivers map data, guidance path data and guidance data to said portable terminal; and
said guidance point determining section selecting a particular node as a guidance point from all nodes constituting an intersection, on the basis of the passage pattern detected by said intersection path judging section.
2 Assignments
0 Petitions
Accused Products
Abstract
A pedestrian navigation system, an information delivery server, and a program for naturally guiding (such as speech-guiding) the user of a portable terminal at an intersection. An information delivery server (20) comprises a map database (23) containing data such as nodes including paths constituting intersections, links, and costs of the links, a path seeking section (24), an intersection path judging section (26) for detecting a path passing through an intersection from guidance paths which the path seeking section (24) has sought, a guidance point determining section (27) which determines a guidance point for path guidance, a guidance data creating section(28) which determines a guidance pattern of path guidance according to the guidance point, and a data delivering section (25) for delivering map data, guidance path data, and guidance data to a portable terminal. The guidance point determining section (27) selects a specific node out of all the nodes constituting intersections as a guidance point.
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Citations
18 Claims
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1. A pedestrian navigation system comprising:
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an information delivery server; and
a portable terminal connected to said information delivery server via a network;
said information delivery server comprising;
a map database that stores nodes and links, including paths constituting intersections, and cost of each link as data;
a path seeking section;
an intersection path judging section that, on the basis of combinations of link lengths of passage patterns composed of multiple links having differing lengths, detects a passage path for an intersection from the guidance paths found by said path seeking section;
a guidance point determining section that determines a guidance point for path guidance;
a guidance data creating section that determines a guidance pattern for path guidance that is suited to the guidance point; and
a data delivery section that delivers map data, guidance path data and guidance data to said portable terminal; and
said guidance point determining section selecting a particular node as a guidance point from all nodes constituting an intersection, on the basis of the passage pattern detected by said intersection path judging section. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An information delivery server constituting a component of a pedestrian navigation system including an information delivery server and a portable terminal connected to said information delivery server via a network,
said information delivery server comprising: -
a map database that stores nodes and links, including paths that constitute intersections, and cost of each link as data;
a path seeking section;
an intersection path judging section that, on the basis of combinations of link lengths of passage patterns composed of multiple links having differing lengths, detects a passage path for an intersection from the guidance paths found by said path seeking section;
a guidance point determining section that determines a guidance point for path guidance;
a guidance data creating section that determines a guidance pattern for path guidance that is suited the guidance point; and
a data delivery section that delivers map data, guidance path data and guidance data to said portable terminal; and
said guidance point determining section selecting a particular node as a guidance point from all nodes constituting an intersection, on the basis of the passage pattern detected by said intersection path judging section. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A program that enables a computer constituting an information delivery server, said information delivery server comprising:
- a map database that stores nodes and links, including paths constituting intersections, and cost of each link as data;
a path seeking section;
intersection path judging section that, on the basis of combinations of link lengths of passage patterns composed of multiple links having differing lengths, detects a passage path for an intersection from the guidance paths found by said path seeking section;
a guidance point determining section that determines a guidance point for path guidance;
a guidance data creating section that determines a guidance pattern for path guidance that is suited to the guidance point; and
a data delivery section that delivers map data, guidance path data and guidance data to said portable terminal;
said information delivery server being a component of a pedestrian navigation system in which a portable terminal is connected via a network, to execute processing as a guidance point determining section that selects a particular node as a guidance point from all nodes constituting an intersection, on the basis of the passage pattern detected by said intersection path judging section. - View Dependent Claims (14, 15, 16, 17, 18)
- a map database that stores nodes and links, including paths constituting intersections, and cost of each link as data;
Specification