Abstract: To make it possible to freely move a moving body between level surfaces located at different heights that are not connected by a vertical member. A moving body includes a movable moving part, an expansion/contraction part disposed in the moving part and configured to expand and contract in a vertical direction, a first engagement part disposed at a tip of the expansion/contraction part and configured to engage with a member located in a surrounding environment, and a control unit configured to control the moving part and the expansion/contraction part. The control unit moves the moving part to a target height position by engaging the first engagement part with a member located at the target height position and then expanding or contracting the expansion/contraction part.

Abstract: The present disclosure provides a coiled cord capable of increasing the length of a cable while preventing a winding diameter of the coiled cord in a plane orthogonal to the direction in which the coiled cord is extended and contracted in a natural state from increasing. A first exemplary aspect is a coiled cord around which a cable is wound, the cable being capable of being freely extended and contracted, the coiled cord including: a first layer in which the cable is wound from an inner side of the coiled cord to an outer side thereof in a radial direction, and a second layer in which the cable is wound from the outer side of the coiled cord to the inner side thereof in the radial direction, in which the first and the second layers are continuously connected to each other.

Abstract: An autonomous moving body includes: a driven body including a carriage capable of moving autonomously; a battery; a first communication unit capable of communicating with a charging dock; and a first arithmetic processing unit for executing first arithmetic processing related to the drive of the driven body among arithmetic processings of the autonomous moving body. A charging dock includes: a charger for charging the battery; a second communication unit capable of communicating with the autonomous moving body; and a second arithmetic processing unit for executing second arithmetic processing other than the first arithmetic processing among the arithmetic processings of the autonomous moving body. The second communication unit is configured to be able to receive arithmetic data used for the second arithmetic processing from the first communication unit, and to transmit a processing result of the second arithmetic processing executed by the second arithmetic processing unit to the first communication unit.