Importance

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Abstract

A mobile body includes an obstacle information obtaining unit, a storage unit, a self-position estimating unit, and a map creating unit. The obstacle information obtaining unit obtains position information about an obstacle. The storage unit stores environmental map restore data and an environmental map created at a previous time. The self-position estimating unit estimates an estimated position based on a comparison between the environmental map created at a previous time and the position information about the obstacle obtained by the obstacle information obtaining unit. The map creating unit creates an enlarged environmental map, and deletes, out of regions included in the enlarged environmental map, a region corresponding to a non-information region from the enlarged environmental map, so as to create an environmental map on an estimated position.

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First Claim