High-precision vehicle positioning device based on pavement fingerprint and method thereof

The invention discloses a high-precision vehicle positioning device based on a pavement fingerprint and a method thereof. The device comprises a map acquisition vehicle and a vehicle to be positioned. A first data acquisition unit on the map acquisition vehicle acquires a pavement image in real time. A positioning module and an inertial navigation module synchronously collect positioning information and inertial navigation information. A first control display unit preprocesses data so as to acquire an atlas. A second data acquisition unit on the vehicle to be positioned acquires current positioning information and a current pavement image of the vehicle in real time. A second control display unit compares the current positioning information with the atlas so as to acquire a plurality of similar images of rough matching, selects one most similar pavement image according to pavement fingerprint information, and calculates and acquires an accurate positioning result of the current pavement image according to a r