Abstract: An automatic cleaning device, comprising: a moving platform configured to automatically move on an operation surface; a cleaning module which is provided on the moving platform and comprises a wet-type cleaning module configured to clean at least a part of the operation surface in a wet-type cleaning mode and a dry-type cleaning module configured to clean at least a part of the operation surface in a dry-type cleaning mode; and a floating lifting/lowering structure connected to the dry-type cleaning module and configured to enable the dry-type cleaning module to passively move up and down relative to the moving platform.

Abstract: Solar-powered device having a body for housing at least one energy storage module and at least one control module are disclosed. The body includes an opening formed by at least two recesses disposed about an upper surface of the body. At least one solar panel may be coupled to the upper surface of the body where the solar panel may be received by the recesses.