FIELD: physics.
SUBSTANCE: device comprises means of capturing images of the rear part of a vehicle, means of detecting three-dimensional objects behind a vehicle and calculating the speed of the three-dimensional object based on the obtained image, means of detecting rain or formation of a water film on the road surface due to rain, means of evaluating three-dimensional objects as another vehicle, control means for changing the range of speed settings.
EFFECT: high accuracy of detecting a moving object during movement of a vehicle.
16 cl, 39 dwg
