| 主权项 |
1. An in-vehicle system for presenting information of upcoming waypoints, comprising:
a processor in data communication with:
a graphical display device;a speedometer;a transceiver operative to communicate with at least one source of road information;a global positioning system (GPS) module; anda non-transitory data storage device on which is stored computer code which, when executed on the processor, implements: a database that stores information of roads and waypoints of general interest, routes previously travelled by the vehicle, and destinations previously visited by the vehicle; and instructions which, when executed on the processor, cause the system to:
obtain a speed of the vehicle;obtain a geographic position of the vehicle;determine a direction of travel of the vehicle;identify a road being traversed by the vehicle and upcoming waypoints on the road in the direction of travel;request current information of upcoming road conditions on the road being traversed, and receive the requested information;select upcoming waypoints on the road being travelled for presentation on the display;determine a distance between a current location and the select waypoints;calculate an estimated time to arrival (ETA) from the current location to the select waypoints based on the speed and upcoming road conditions; andpresent on the display a roadmap indicating the current location, the select waypoints, and the ETA to the select waypoints; and means for determining the previously travelled routes and previous destinations; and means for adapting the selecting of waypoints based on at least one of the previously travelled routes and previous destinations, the speed of the vehicle, and the upcoming road conditions; wherein the system is configured to select and present waypoints when route guidance is inactive. |
