| 摘要 |
FIELD: information technology.SUBSTANCE: server is configured to process GPS data in order to generate enhanced map data, said data including a plurality of navigable segments representing segments of a navigable route in an area covered by a map. The server is connected with a wireless communication transceiver configured to receive GPS fix points by wireless communication from a plurality of navigation devices and send the received GPS fix points to the server. The server includes a processor configured to generate at least one speed profile for each segment from the GPS fix points from at least two of the plurality of navigation devices, each speed profile comprising an expected speed of travel through the segment, and the server is configured to subsequently instruct the transceiver to send the speed profiles to the navigation devices.EFFECT: high accuracy of determining speed on a road segment during a predetermined time of the day.5 cl, 6 dwg |
