Abstract: A water tank is provided for communicating with a cleaning system on a base station body of a base station and outside of the base station. The water tank includes a clean water cavity configured to hold clean water, a clean water input channel configured to be communicated with the clean water cavity and an external water source outside the base station, a clean water output channel configured to be communicated with the clean water cavity and the cleaning system on the base station body, a sewage cavity configured to hold sewage, a sewage input channel configured to be communicated with the cleaning system on the base station body and the sewage cavity, and a sewage output channel configured to be communicated with the sewage cavity and outside of the base station.

Abstract: A base station includes a base station body, a first water tank, and a second waterway system. The base station body is provided with a cleaning system. The first water tank is removably installed in the base station body, and is configured to be manually added with clean water and/or removed with sewage. The first water tank is defined with a first cavity communicated with the cleaning system. The second waterway system includes a waterway channel arranged on the base station, and the waterway channel is configured for receiving and transporting clean water from the outside of the base station to the cleaning system and/or configured to receive sewage from the cleaning system and discharge the sewage to the outside. Both or either one of the first cavity and the second waterway system may supply clean water to the cleaning system and/or receive sewage from the cleaning system.