Patent ID: 8150622
Filing Date: 2012-04-03
Classification: G01C

Abstract:
1. A method for providing a traffic information service to a vehicle comprising: broadband broadcasting traffic information through an external network to the vehicle, wherein the traffic information is based on a first map configured to include a traffic information measurement node that comprises the traffic information; providing data, within the broadcasted traffic information, the data comprising a set of link IDs that relates the first map with a second map to be rendered by a vehicle navigation unit, wherein the second map is different from the first map, and wherein the set of link IDs are configured to identify at least one of a road segment, a landmark and a guide point in the first and second map; translating, the traffic information measurement node matched from the first map to the second map, the translation comprising: based on the traffic information, providing a traffic information service to the vehicle navigation unit, wherein the vehicle navigation unit is configured for displaying the traffic information with the second map, wherein map data in the vehicle navigation unit includes data linking the first map and the second map, the map data being provided in a look-up table that is valid for one of a period of time and a number of uses, the look-up table being configured to establish a relationship between the first map and the second map only when the look-up table is valid.