INFORMATION PROCESSING DEVICE, METHOD FOR IDENTIFYING PLACE WITH POOR VISIBILITY, AND UNMANNED AERIAL VEHICLE

The management server 2 acquires sensing information obtained by the UAV 1 sensing, from the sky, scatter area where a colcothar is scattered on a mountain climbing route, identifies a state of the colcothar on the basis of the sensing information, and identifies, on the basis of the state of the colcothar, at least one location for notification as a place that is difficult to visually recognize as the mountain climbing route.