METHOD FOR DETERMINING THE VOLUME OF BULK CARGO IN A MOVING VEHICLE USING NON-CONTACT MEASUREMENT Russian patent published in 2022 - IPC G01B11/04 G01B11/24 G06T7/564 G06T7/62 

FIELD: measuring technology.

SUBSTANCE: moving cargo is scanned with a vehicle using contactless measurement with two laser rangefinders, with the possibility of measuring the distance to the points of the cargo surface and calculating the cargo volume. To do this, laser rangefinders are positioned on the same plane above the moving bulk cargo located on the platform or body of a moving vehicle so that their scanning planes are perpendicular to each other and at such a height above the moving vehicle that their fields of view are oriented downward and cover the necessary area of the vehicle passing without shading and in the entire range. According to the measured distances to the points of the cargo surface and their coordinates, two-dimensional range portraits are formed in the XOZ and YOZ planes in the polar coordinate system. Their coordinates are converted into the rectangular Cartesian coordinate system. A three-dimensional portrait is synthesized on their basis by accumulating longitudinal profiles when estimating the displacement of the vehicle along the longitudinal profile XOZ. A transverse profile is formed similarly to the synchronized data of a continuously shifting passing vehicle, along the profile in the YOZ plane. The offset at the current time is determined using one or more previous frames of the longitudinal range portrait data. The empty volume of the platform or body is calculated. The cargo volume is defined as the difference between the reference value of the platform or body or the useful volume of the platform or body and the calculated empty volume of the platform or body.

EFFECT: increase the reliability and accuracy of measuring the volume of bulk cargo given any load of the vehicle and its position.

1 cl, 1 dwg