| 摘要 |
The present invention is provided with a light irradiation unit for irradiating laser light so as to scan a road surface, a light reception unit for acquiring reflection intensity values corresponding to each irradiated point on the road surface, and a road surface condition determination device for determining a road surface condition using the reflection intensity values. A set of reflection intensity values acquired for each irradiated point on a road surface (hereafter referred to as a "multipoint reflection intensity value set") defines the relationship between the irradiation positions in the far-near direction from the light irradiation unit and the reflection intensity values, which are dependent on the road condition. The road surface condition determination device is created through machine learning using, as learned data, a plurality of multipoint reflection intensity value sets acquired for a plurality of road surfaces having different known road surface conditions and determines and outputs a road surface condition using, as input, a multipoint reflection intensity value set acquired for a road surface having an unknown road surface condition. |
