| CPC H04W 4/44 (2018.02) [G01C 21/32 (2013.01)] | 9 Claims |
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1. A data collection system comprising:
a server device; and
at least one probe vehicle, wherein the server device collects data obtained by the at least one probe vehicle,
the server device comprising:
a memory that stores a master map which is divided into a plurality of segments, each of the plurality of segments having a corresponding segment ID and including a plurality of unit ranges, wherein a necessity of data collection for each of the plurality of unit ranges included in each of the plurality of segments is indicated by a binary value; and
a server controller with a server processor programmed to determine a segment where a respective probe vehicle among the at least one probe vehicle is located based on a segment ID transmitted from the respective probe vehicle, extract a partial map corresponding to the determined segment from the stored master map, and transmit the extracted partial map to the respective probe vehicle;
the respective probe vehicle comprising:
a sensor that obtains data about an external environment of the respective probe vehicle; and
a vehicle controller with a vehicle processor programmed to transmit a request for the partial map with the segment ID to the server device, to receive the partial map from the server device, to identify a unit range where data collection is needed in the partial map received from the server device, and to transmit data obtained in the identified unit range, to the server device,
wherein the server processor of the server controller is further programmed to:
update the stored master map according to a collection situation of data; and
when the master map is updated, assign a version number to a partial map included in the updated master map, and transmit both of the partial map and the version number to the respective probe vehicle.
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