Self-propelled electronic device

Abstract

A self-propelled electronic device including: at least one drive wheel disposed at a bottom of a housing, the drive wheel traveling the housing while being displaced in a vertical direction in accordance with undulations of a floor surface; a drive wheel sensor for detecting a position of the drive wheel relative to the housing; a floor detection sensor for detecting a distance between the bottom of the housing and the floor surface; and a travel control unit for determining and deciding a course of the housing based on the determination that there exists a step on the floor surface if the distance detected by the floor detection sensor is longer than a predetermined reference distance, or, otherwise, the position of the drive wheel detected by the drive wheel sensor is lower than a predetermined reference position, by successively referring to output of the drive wheel sensor and the floor detection sensor, wherein, if the position of the drive wheel detected by the drive wheel sensor is lower than a predetermined reference position, the travel control unit further refers to the distance detected by the floor detection sensor, and if the distance detected by the floor detection sensor is longer than the predetermined reference distance, the travel control unit perform the avoidance traveling control of the housing to avoid the step, and travels the housing, whereas, if the distance detected by the floor detection sensor is the predetermined reference distance or shorter, the travel control unit does not perform the avoidance traveling control of the housing, and continues the traveling of the housing.

Dependencies are inferred from the claim text.