POSITION SPECIFICATION DEVICE, POSITION SPECIFICATION METHOD, AND CARRIAGE FOR MEASUREMENT

To improve position specification precision of a worker.SOLUTION: A position specification device (1) includes: an acquisition part (10) which acquires a plurality of magnetic intensities measured in a movement path of a worker (W) in a positioning object region and a movement distance of the worker (W); an estimation part (20) which estimates the path where the worker (W) moves by collating a change pattern of the plurality of magnetic intensities accompanying the movement of the worker (W) that the acquisition part (10) acquires with a change pattern of magnetism in a collation object path which has a length corresponding to the movement distance in the collation object path specified by connecting at least some successive measurement points among a plurality of measurement points where magnetism is previously measured in the positioning object region; and a specification part (30) which specifies the location of the worker (W) based upon the path that the estimation part (20) has estimated.SELECTED DRAWING: Figure 1 【課題】作業者の位置の特定精度を向上させる。【解決手段】位置特定装置（１）は、測位対象領域における作業者（Ｗ）の移動経路において計測した複数の磁気と、作業者（Ｗ）の移動距離とを取得する取得部（１０）と、取得部（１０）が取得した複数の磁気の、作業者（Ｗ）の移動に伴う変化パターンと、測位対象領域において予め磁気が計測された複数の計測点の少なくとも一部の連続する計測点を繋ぐことにより特定される照合対象経路のうち、上記移動距離に相当する長さを有する照合対象経路の磁気の変化パターンとを照合することにより、作業者（Ｗ）が移動した経路を推定する推定部（２０）と、推定部（２０）が推定した経路に基づいて、作業者（Ｗ）の位置を特定する特定部（３０）と、を含む。【選択図】図１