This technology features a storm drain with multiple optical sensors installed on the upper filter screen connected to underground sewer pipes. If the illuminance drops below a set threshold on a majority of the sensors, the processor identifies the screen as blocked and transmits a blockage signal containing the drain's identification information to a central system.
Storm drain screens are frequently blocked by accumulated leaves and debris, or covered with rubber mats to prevent odors, which hinders rainwater drainage and often leads to flooding. Previously, maintenance required manual, on-site visual inspections, making it difficult to identify and address blocked drains in a timely manner due to labor shortages.
This technology incorporates a solar power generator on the main unit and a blower between the filter screen and the generator. When low illuminance suggests a blockage, the blower reverses to blow air toward the screen, clearing debris. Once illuminance returns to normal, it rotates forward to cool the generator and clear dust. A weight sensor on the inner support protrusions verifies the screen's weight, ensuring signals are sent only when both illuminance and weight thresholds are met, thereby reducing false alarms from shadows or temporary obstructions. Generated power is stored in a battery. Applicable to municipal road drainage, commercial back alleys, and flood-prone underpass entrances, this system allows managers to identify blocked drains on a map and dispatch cleaning crews directly to specific locations without pre-monsoon patrols.
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