Patent ID: 11965752
Assignee: TOMTOM GLOBAL CONTENT B.V.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of transforming a position of a location of interest from a first reference frame to a second reference frame, wherein the first reference frame is a reference frame corresponding to a first coordinate system of a digital map covering a geographic region including the location of interest, the digital map comprising a plurality of segments connected by nodes, the segments representing elements of a navigable network in the geographic region covered by the digital map, wherein the position of the location of interest with respect to said first reference frame is a position with respect to the digital map, and wherein the second reference frame is a reference frame corresponding to a second coordinate system used by a vehicle traversing a path through the navigable network the method comprising:
obtaining data indicative of the position of the location of interest with respect to the first reference frame;
obtaining displacement map data comprising, for each of one or more locations, data indicative of a change in a position of each of the one or more locations with respect to Earth's surface occurring over time as a result of crustal dynamics;
determining, based on the data indicative of the position of the location of interest with respect to the first reference frame and the displacement map data, data indicative of the position of the location of interest with respect to the second reference frame, the determining including:
transforming the position of the location of interest with respect to the first reference frame to the position of the location of interest with respect to the second reference frame, thereby converting a position of the location of interest from the first coordinate system of the digital map to the second coordinate system used by the vehicle, the transforming including:
adjusting one of the position of the location of interest with respect to the first reference frame or the position of the location of interest with respect to the second reference frame based on the displacement map data to compensate for at least one change in Earth's surface occurring as a result of crustal dynamics; and

performing, based at least in part on the data indicative of the position of the location of interest with respect to the second reference frame, one or more navigation-related operations for or associated with the vehicle.