An autonomously moving robot that drives while evading an obstacle by an environment information acquisitioner. The information acquisitioner includes an imager that takes an image of a circumference on a driving route, an image recognition processor that extracts an area having a property relating to a region of a human body, a ranger that measures a range and an orientation to an object existing in the circumference on the driving route, a range information analyzer that obtains a shape of the object, and an environment recognizer that recognizes the environment information on the driving route. The environment recognizer compares the area extracted in the image recognition processor with the object recognized in the range information analyzer, and recognizes the object as a person when both of them agree with each other.

 
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