Car navigation system and map version management method thereof
First Claim
Patent Images
1. A car navigation system comprising:
- a GPS satellite for receiving current location information of a moving object;
a path search server for searching for a path corresponding to destination information inputted by a user, determining whether to update a map by checking whether versions of links in the search path corresponds to a version of a map transmitted from a car navigation apparatus, and if it is necessary to update the map, inputting update information to a rear stage of a corresponding link to transmitting a corresponding search path; and
a car navigation apparatus for scanning each node of a search path transmitted from the path search server, determining whether a node where update information is inputted exists, reconstructing a link, extracting guidance information from the update information, and storing the extracted guidance information in a corresponding link.
1 Assignment
0 Petitions
Accused Products
Abstract
According to a car navigation system and a map version management method thereof, a version management method for a server having maps of different versions and a car navigation apparatus is suggested. The method of the present invention includes: managing an update history on the basis of guidance information included in a map, receiving the map update information included in search information in real time, reconstructing path guidance information of a terminal, and performing exact guidance on the terminal with search path information transmitted from the server.
40 Citations
9 Claims
-
1. A car navigation system comprising:
-
a GPS satellite for receiving current location information of a moving object;
a path search server for searching for a path corresponding to destination information inputted by a user, determining whether to update a map by checking whether versions of links in the search path corresponds to a version of a map transmitted from a car navigation apparatus, and if it is necessary to update the map, inputting update information to a rear stage of a corresponding link to transmitting a corresponding search path; and
a car navigation apparatus for scanning each node of a search path transmitted from the path search server, determining whether a node where update information is inputted exists, reconstructing a link, extracting guidance information from the update information, and storing the extracted guidance information in a corresponding link. - View Dependent Claims (2, 3)
-
-
4. A map version management method for car navigation system comprising a path search server and a car navigation apparatus, the method comprising:
-
(a) searching for a path corresponding to the received destination information, when receiving a map version information and a destination information from the car navigation apparatus;
(b) determining whether a version of a current link corresponds to the map version information, with scanning from a start link to a destination link;
(c) determining whether the version of the current link corresponds to a version of a next link, if the version of the current link does not correspond to the map version information; and
(d) inputting updated information to a rear node of a search path to construct search path information, if the version of the current link corresponds to the version of the next link. - View Dependent Claims (5)
-
-
6. A map version management method for car navigation system comprising a path search server and a car navigation apparatus, the method comprising:
-
(a) scanning from a start node to a destination node and determining whether a version of a current node corresponds to stored map version, when receiving search path information corresponding to destination information inputted by a user;
(b) extracting an attribute of a corresponding node and an attribute of a connection link, if the version of the current node does not correspond to the stored map version;
(c) determining whether a version of a previous node is a new version, if the version of the previous node is the new version, determining a matching link of connection links of a previous node and a current node to be a path link and reconstructing a link; and
(d) storing guidance information in the reconstructed link, the guidance information comprising the extracted attribute of the corresponding node and the extracted attribute of the connection link. - View Dependent Claims (7, 8, 9)
-
Specification