Patent ID: 11921189
Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method for determining a three-dimensional (3D) coordinate of a moving target, the method being implemented on a computing device having at least one processor and at least one non-transitory storage device, the method comprising:
generate a two-dimensional (2D) detection data of the moving target by a two-dimensional (2D) detection device, wherein the 2D detection device is mounted on a perimeter that is substantially perpendicular to a horizontal plane, the 2D detection device including a shell and at least two detection assemblies, wherein the shell is configured to accommodate the at least two detection assemblies; and the at least two detection assemblies are mounted at a known height above the horizontal plane with a tilting angle, wherein the at least two detection assemblies are mounted at a known height above the horizontal plane with a tilting angle includes:
the at least two detection assemblies are mounted parallel to the shell of the 2D detection device and the shell of the 2D detection device is mounted with the tilting angle to the horizontal plane; or
the at least two detection assemblies are mounted with the tilting angle to the shell of the 2D detection device and the shell of the 2D detection device is mounted parallel to the horizontal plane;
obtain the two-dimensional (2D) detection data from the 2D detection device;
determining a 2D coordinate of the moving target in a first coordinate system based on the 2D detection data, wherein the first coordinate system is a 2D coordinate system including the first axis and a second axis that is perpendicular to the first axis, and the 2D coordinate of the moving target includes a first value of the first axis and a second value of the second axis; and
determining the 3D coordinate of the moving target in a second coordinate system based on the 2D coordinate, the tilting angle, and the known height.