DEVICE FOR BUILDING OF DEPTH MAP IN NON-DENSE ENVIRONMENTS Russian patent published in 2023 - IPC G01N29/26 

FIELD: measurement equipment.

SUBSTANCE: device for constructing a depth map in loose media, containing: at least one source of directed ultrasonic radiation (URS), configured to emit an audio signal entirely or preferably within a given solid angle, at least three ultrasonic radiation receivers (URR), located with the ability to receive an ultrasonic signal reflected from the mentioned object, a control and data processing facility (CDPF), in which: the mentioned URS and URR are installed at a predetermined predetermined distance from each other, the mentioned signal has a frequency during the sound pulse changing in accordance with a predetermined pattern, while the range of changes in the frequency of the said signal includes the relaxation frequency of the said medium, the mentioned CDPF are made with the possibility of generating the said signal by means of the said URS, receiving the signal reflected by the object by the said each of the URRs in such a way as to ensure registration of a series of values of the wave amplitude and the time of its registration for each of the URRs, obtaining a digital representation of the series of values of the wave amplitude and the time of its registration separately for each URR, and processing of the resulting digital representations using algorithms, including neural network algorithms with obtaining a depth map.

EFFECT: providing the ability to build a depth map using a simple device, which in the extreme case may consist of one source of ultrasonic radiation and a system of three ultrasonic radiation receivers (microphones).

11 cl, 16 dwg