US Patent 11049392 Position capture method and system

A position capture method for capturing an own vehicle position by using a positioning part that measures a position of a vehicle (4) and a plurality of magnetic markers (5) laid on a traveling path of the vehicle (4) with their laying positions specified includes: upon detection of any of the plurality of magnetic markers (5), selecting, from among the laying positions of the plurality of magnetic markers (5), the laying position located nearest to an actual measured position measured by the positioning part; and capturing, as the own vehicle position, a corrected position based on the laying position, thereby making high-accuracy position capture possible.