Insolation information generating device, insolation information providing system and insolation information providing method

摘要

An insolation information generating device has a mesh generator to generate meshes by projecting a solar trajectory on a celestial sphere onto a plurality of mesh positions on a two-dimensional plane, a solar position calculator to calculate a solar position, a feature road shape storage to store three-dimensional information on feature and road shapes, a feature road shape acquisition module to acquire three-dimensional information of a feature and a road located around each of a plurality of regions of interest, an insolation information calculator to determine whether sunlight from each solar position calculated by the solar position calculator is blocked by a feature acquired by the feature road shape acquisition module to calculate at least either one of a sunny ratio and a shady ratio, and an insolation information storage to store each mesh position and at least either one of the corresponding sunny ratio and shady ratio.