In recent years, a revolutionary cleaning technology, the drone exterior wall cleaning system, has officially debuted and been put into use. The birth of this technology marks the entry of the building exterior wall cleaning field into a new era of both efficiency and safety, which can be regarded as a milestone in scientific and technological innovation.
For a long time, traditional glass exterior wall cleaning operations have been highly dependent on manual operations by high-altitude workers, which is not only labor-intensive but also accompanied by extremely high safety risks. In contrast, the introduction of drone cleaning technology has fundamentally subverted this traditional model.

This article introduces a cutting-edge high-altitude cleaning solution featuring the P3(T50) flexible tethered system, now fully compatible with DJI's newly released Matrice 400 drone. Designed for urban curtain wall cleaning and wind turbine maintenance, the solution showcases seamless cross-platform integration, lightweight design, and precise aerial operation capabilities. Leveraging advancements in soft robotics and UAV technologies, it represents a major step forward in intelligent, efficient, and adaptable drone-based cleaning applications across various industries.

Building exterior cleaning using UAVs is a highly complex and systematic task. With the emergence of diverse technological routes, models, and features, solution selection has become increasingly difficult, raising decision-making costs for cleaning service providers, property managers, and other end users. In response, a dedicated "UAV Building Cleaning Solution Procurement Decision Framework" has been developed, summarizing key evaluation criteria to support efficient, targeted decision-making.

Stone is a widely favored material for building façades due to its durability and aesthetic appeal. It is often used in the exterior curtain walls of malls, hotels, and high-end residences. However, in humid climates—especially during the rainy season—stone surfaces are prone to retaining moisture due to their porous structure, making them ideal breeding grounds for moss and mildew. These biological stains not only compromise the appearance of buildings but may also lead to material deterioration and discoloration over time, requiring regular maintenance and cleaning.

Recently, the AP3-P3 flexible tethered aerial cleaning system achieved DJI M400 PSDK mass production certification, becoming one of the first aerial cleaning payloads to pass this rigorous process. This milestone marks an important step forward in scaling aerial cleaning applications, bringing safer, more efficient solutions to high-altitude operations.