SOLAR RADIATION ESTIMATION DEVICE, METHOD OF ESTIMATING SOLAR RADIATION AND SOLAR RADIATION ESTIMATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To precisely and swiftly estimate solar radiation while considering influence of obstacle interfering the solar radiation.;SOLUTION: A solar radiation estimation device 1 includes: an estimation information acquisition section 2 that acquires a piece of estimation information including time, a spot and a sight line direction at the spot as the reference where the estimation of solar radiation is made; a 3D model acquisition section 3; a sun orientation calculation section 4 that calculates the orientation of the sun at the time and the spot; a sky map imaging section 5 that takes an image of whole sky at the sight line direction to generate a 2-dimensional sky map; a sector division section 6 that divides the whole sky into plural parts to generate plural sky sectors and associates the respective sky sectors with the pixels in the 2-dimensional sky map; a sector solar radiation calculation section 7 that calculates the solar radiation from the sun positioned in the orientation which is calculated by the sun orientation calculation section with respect to each of pixels corresponding to the sky sector and adjusts the solar radiation depending on the existence of objects interfering the solar radiation; and a total solar radiation calculation section 8 that calculates total solar radiation by integrating the solar radiation on each of the pixels corresponding to all sky sectors.;COPYRIGHT: (C)2015,JPO&INPIT