AUTONOMOUSLY TRAVELING CLEANER AND MAP CORRECTION METHOD

The present invention includes map generator (181) that generates, based on a traveling record, a map using a position of a reference member installed in an area to be cleaned as a reference position and longest-straight-line determination unit (182) that determines a longest-straight-line component included in the map. The present invention further includes map arrangement unit (183) that causes a reference position of a new map and a reference position of a past map to be matched with each other, and arranges the respective longest-straight-line components of the maps in parallel or on one straight line, and a difference calculator (184) that causes parallel movement of the new map relative to the past map multiple times and calculates the difference between the maps every time the parallel movement is performed. The present invention further includes reference position updating unit (185) that updates the reference position the new map based on a positional relation of the reference position of the new map with respect to the reference position of the past map, from which a minimum difference has been obtained. Accordingly, the present invention provides an autonomously traveling cleaner capable of correctly obtaining a reference position even if the reference position is displaced.