Drones can conduct grid-based inspections of areas that are difficult to access by foot, such as main roads, back alleys, riverbanks, and the rooftops of high-rise buildings. By utilizing a bird’s-eye view, they can quickly locate hidden trash accumulation points and other issues, covering large areas with high inspection efficiency. The use of drone cleaning technology to clean building facades offers high safety, thorough coverage with no blind spots, high operational efficiency, and low costs.