METHOD AND DEVICE FOR MEASURING SNOW

摘要

PURPOSE: Optical snow depth measuring method and apparatus are provided to improve the accuracy of measurement and to minimize the shaking phenomenon of snow due to wind using the reflective light of incident light. CONSTITUTION: An optical snow depth measuring method includes the following: Slit-shaped light is irradiated from laser beam(10) toward the ground at a pre-set angle. A camera(20) is installed at the reflected angle of the light and is toward the reflected side of the light. Image is taken by the camera. In the image, the reflected image from the ground is set as a reference point(p1). According to distances between reflected points from a snow surface and the reference point, the height of the snow surface with respect to the reference point is relatively calculated to obtain snow depth using phytahgoras theorem and trigonometric ratio.