OWN POSITION CALCULATING DEVICE AND OWN POSITION CALCULATING METHOD Russian patent published in 2017 - IPC G08G1/16 

FIELD: physics.

SUBSTANCE: own position calculating device includes a light projector configured to project a light beam with a pre-installed pattern onto a road surface near the vehicle, an image pickup module configured to capture a road surface image near a vehicle. The image includes an area, to which the light beam is projected with the preset pattern. The device also comprises an orientation angle calculation module, an orientation change amount calculation unit, and a home position calculation module. The orientation change amount calculation unit is configured to calculate a change amount of the vehicle orientation based on temporal changes of a plurality of characteristic points on the road surface that are detected from the image obtained by the image pickup module. To determine conditions for detecting characteristic points, the detection condition section is used.

EFFECT: accurate and stable assessment of the current position of the vehicle, regardless of the condition, in which the characteristic points are detected.

8 cl, 12 dwg