DEVICE AND METHOD FOR ASSESSING AND MAINTAINING TYPE OF ROAD SURFACE USING AUDIO SIGNALS Russian patent published in 2025 - IPC G06Q50/10 E01H10/00 E01C11/26 E01C23/01 G05B19/42 

FIELD: data processing.

SUBSTANCE: invention relates to a method and a device for classifying a road surface using an audio signal. Method comprises transmitting an audio signal to a target road surface remote from the electronic device at a first distance; receiving an audio signal reflection signal for a target road surface; obtaining information on the state of the atmosphere associated with the audio signal; obtaining first data for the received reflected signal; generating second data by correcting the first data based on the atmosphere state information; obtaining third data associated with frequency domain information of second data based on second data; and determining type of target road surface based on third data and artificial neural network for classification of road surfaces, and wherein the artificial neural network for classifying road surfaces is trained as a frequency domain data set generated based on an audio signal reflected from the road surface at a second distance different from the first distance.

EFFECT: increased speed and accuracy of road surface classification.

15 cl, 51 dwg