Underwater dredging robots are intelligent devices used to clean up sludge and other pollutants at the bottom of water bodies. They perform dredging through methods such as suction, excavation, or agitation-suction, and can also salvage garbage, treat sediments, and monitor data. There are various types of them: for example, the suction type is suitable for urban rivers, and the excavation type is used for port dredging. Their power systems include electric and hydraulic drives, etc., and their