Electric field map generation device, method, program, and localization device

Abstract

Time and effort to generate an electric field map to realize high-accuracy positioning is reduced. In an electric field map generation device () that generates an electric field map in which RSSI obtained when radio waves transmitted from a beacon () are observed at each of a plurality of points in the same space is associated with each of coordinates at the plurality of points, a radio wave strength acquisition unit () acquires RSSI observed at each of at least three observation points different in distance from the beacon (), a space propagation characteristics estimation unit () estimates space propagation characteristics of the radio waves transmitted from the beacon () in the same space using the acquired RSSI at the observation points, a radio wave strength estimation unit () estimates RSSI at estimation points on the basis of the estimated space propagation characteristics and distances between the estimation points different from the observation points and the beacon (), and a generation unit () generates the electric field map () using the RSSI at the observation points and the estimation points.