To provide a light-emitting vane suitable for not only guiding a visual line but also monitoring and measuring a snow depth, and to provide a snow depth measuring device using the same.
The light-emitting vane 1 comprises a vane body 11 having an arrow shape, an emitter 12 mounted at a front end T of the vane body 11 for emitting a light to the arrow direction of the vane body 11, and a magnifying lens 12 for magnifying the light emitted by the emitter 12 in at least one direction. The snow depth measuring device 100 comprises the light-emitting vane 1 arranged so that the light is applied from a vertical upper side to a road side, an image pickup device 2 arranged with a visual line from an oblique upper side to the road side for receiving the emitted light reflected from a snow surface S, and an image processor 3 for extracting a portion corresponding to a region to which the emitted light of the self-illuminous vane 1 is applied from an image picked up by the image pickup device 2 and computing the snow depth in accordance with the characteristic amount of the portion.
SUDO MITSUNARI
| JP2001040625A | 2001-02-13 | |||
| JP2000334052A | 2000-12-05 | |||
| JPH01168807U | 1989-11-28 | |||
| JPS5780510A | 1982-05-20 | |||
| JPH10260141A | 1998-09-29 |
Seiichi Yakumaru
Hiroaki Nakatani