The S450A amphibious robot features a helical propulsion structure, designed for inspecting complex environments such as pipelines, culverts, swamps, and mud flats. It boasts strong mud-crossing capabilities and can navigate on water even at high water levels, effectively complementing CCTV and sonar inspections. The S450A consists of the amphibious robot body, a front-mounted high-definition camera mount, a rear-mounted fixed high-definition camera, a portable robot control cable reel, and a robot control terminal, capable of inspecting DN500mm pipelines.